[Pelotherapy and pelotherapy combined with intravenous laser blood irradiation at the sanatorium-resort stage of treatment of patients with psoriasis vulgaris]. / Peloidoterapiya i peloidoterapiya v sochetanii s vnutrivennym lazernym osvechivaniem krovi na sanatorno-kurortnom etape lecheniya bol'nykh vul'garnym psoriazom.

Search of new rational ways to increase the effectiveness of treatment and rehabilitation measures for patients with psoriasis vulgaris continues to be one of the urgent problems in modern clinical dermatology. OBJECTIVE: To carry out a comparative analysis of the impact of different variants of sanatorium-resort treatment (SRT) - pelotherapy and pelotherapy in combination with intravenous laser blood irradiation (ILBI) - on the level of IL-17 and TNF-a, dermatological status, psychoemotional state and quality of life (QL) assessment of patients with psoriasis vulgaris. MATERIAL AND METHODS: A naturalistic comparative study included 120 patients with psoriasis vulgaris, who were undergoing SRT: 57 patients in the pelotherapy group and 63 in the group of pelotherapy in combination with ILBI. The SRT effectiveness was assessed using the PASI index, the HARS and HDRS scales and the DLQI questionnaire. The dynamics of IL-17 and TNF-a plasma levels in blood plasma was studied. The study duration was 6 months 14 days. RESULTS: After 14 days of SRT, a decrease in IL-17 and TNF-a levels in blood plasma was statistically significant both in the pelotherapy group and in the group of pelotherapy in combination with ILBI, no statistically significant differences between the groups were found. Furthermore, the comprehensive use of pelotherapy in combination with ILBI has contributed to a more pronounced statistically significant decrease in the PASI index, the HARS and HDRS scales' total scores and an increase in the level of QL. The number of patients with clinical remission was statistically higher in the group of pelotherapy combined with ILBI compared to the pelotherapy group (87.3% versus 42.1%) six months after SRT. CONCLUSION: The advantage of comprehensive application of pelotherapy and ILBI in comparison with pelotherapy in patients with psoriasis vulgaris in SRT has been shown. The comprehensive application of pelotherapy and ILBI reduces the level of inflammatory biomarkers, improves dermatological and psychoemotional status, improves QL and is well tolerated by patients.

Network pharmacology analysis and experimental validation of Xiao-Qing-Long-Tang's therapeutic effects against neutrophilic asthma.

BACKGROUND: Xiao-Qing-Long-Tang (XQLT), a classical Chinese herbal medicine formula, has been extensively used for allergic asthma treatment. However, there is limited research on its anti-inflammatory effects and mechanisms specifically in neutrophilic asthma (NA). PURPOSE: This study aims to investigate the potential therapeutic effects of XQLT against NA using a combination of network pharmacology and experimental validation. STUDY DESIGN: By utilizing traditional Chinese medicine and disease databases, we constructed an XQLT-asthma network to identify potential targets of XQLT for NA. In the experimental phase, we utilized an ovalbumin (OVA)/lipopolysaccharide (LPS)-induced model for neutrophilic asthma and examined the therapeutic effects of XQLT. RESULTS: Our research identified 174 bioactive components within XQLT and obtained 140 target genes of XQLT against asthma. Functional enrichment analysis revealed that these target genes were primarily associated with inflammation and cytokines. In the experimental validation, mice induced with OVA-LPS showcased eosinophilic and neutrophilic cell infiltration in peri-bronchial areas, elevated levels of IL-4 and IL-17 in both serum and lung, increased percentages of Th2 and Th17 cells in the spleen, as well as elevated levels of CD11b+ and CD103+ dendritic cells (DCs) within the lung. Treatment with XQLT effectively reduced IL-4 and IL-17 levels, decreased the percentages of Th2, Th17, CD11b+, and CD103+ DCs, and improved inflammatory cell infiltrations in lung tissues. These findings serve as a foundation for the potential clinical application of XQLT in neutrophilic asthma.

Eicosapentaenoic acid reduces the proportion of IL-17A-producing T cells in a 3D psoriatic skin model.

Psoriasis is a skin disease presenting as erythematous lesions with accentuated proliferation of epidermal keratinocytes, infiltration of leukocytes, and dysregulated lipid metabolism. T cells play essential roles in the disease. n-3 polyunsaturated fatty acids are anti-inflammatory metabolites, which exert an immunosuppressive effect on healthy T cells. However, the precise mechanistic processes of n-3 polyunsaturated fatty acids on T cells in psoriasis are still unrevealed. In this study, we aimed to evaluate the action of eicosapentaenoic acid (EPA) on T cells in a psoriatic skin model produced with T cells. A coculture of psoriatic keratinocytes and polarized T cells was prepared using culture media, which was either supplemented with 10 µM EPA or left unsupplemented. Healthy and psoriatic skin substitutes were produced according to the self-assembly method. In the coculture model, EPA reduced the proportion of IL-17A-positive cells, while increasing that of FOXP3-positive cells, suggesting an increase in the polarization of regulatory T cells. In the 3D psoriatic skin model, EPA normalized the proliferation of psoriatic keratinocytes and diminished the levels of IL-17A. The expression of the proteins of the signal transducer and activator of transcription was influenced following EPA supplementation with downregulation of the phosphorylation levels of signal transducer and activator of transcription 3 in the dermis. Finally, the NFκB signaling pathway was modified in the EPA-supplemented substitutes with an increase in Fas amounts. Ultimately, our results suggest that in this psoriatic model, EPA exerts its anti-inflammatory action by decreasing the proportion of IL-17A-producing T cells.

Punicalagin alleviates the hyperproliferation of keratinocytes in psoriasis through inhibiting SKP2 expression.

Psoriasis is a chronic inflammatory skin disorder characterized by abnormal keratinocytes proliferation and multiple immune cells infiltration in the dermis and epidermis. Although most psoriasis-related researches have been concentrated on the interleukin-23 (IL-23)/interleukin-17 (IL-17) axis, new data suggest that keratinocytes also play a pivotal role in psoriasis. Previously, we found that punicalagin (PUN), a bioactive ellagitannin extracted from Pericarpium Granati (the pericarpium of Punica granatum L.), exerts a therapeutic effect on psoriasis. However, the underlying mechanism, especially its potential modulatory effect on keratinocytes, remains obscure. Our study aims to reveal the potential regulatory effect and its underlying cellular mechanism of PUN on the hyperproliferation of keratinocytes. We used tumor necrosis factor α (TNF-α), IL-17A and interleukin-6 (IL-6) to induce abnormal proliferation of HaCaT cells (Human Keratinocytes Cells) in vitro. Then, we evaluated the effects of PUN through MTT assay, EdU staining and cell cycle detection. Finally, we explored the underlying cellular mechanisms of PUN via RNA-sequencing, WB in vitro and in vivo. Here, we found that PUN can directly and dose-dependently decrease TNF-α, IL-17A and IL-6-induced abnormal proliferation of HaCaT cells in vitro. Mechanically, PUN suppresses the hyperproliferation of keratinocytes through repressing S-phase kinase-associated protein 2 (SKP2) expression in vitro and in vivo. Moreover, overexpression of SKP2 can partly abolish PUN-mediated inhibition of aberrantly proliferative keratinocytes. These results illustrate that PUN can reduce the severity of psoriasis through directly repressing SKP2-mediated abnormal proliferation of keratinocytes, which gives new insight into the therapeutic mechanism of PUN on psoriasis. Moreover, these findings imply that PUN might be a promising drug candidate for the treatment of psoriasis.

Dasatinib, a selective tyrosine kinase inhibitor, prevents joint destruction in rheumatoid arthritis animal model.

AIM: We aimed to evaluate the preventive role of the tyrosine kinase inhibitor dasatinib in an animal model of rheumatoid arthritis (RA). METHODS: DBA/1J mice were injected with bovine type II collagen to induce arthritis (collagen-induced arthritis [CIA]). There were four experimental groups of mice, namely negative control (non-CIA), vehicle-treated CIA, dasatinib-pretreated CIA, and dasatinib-treated CIA. After collagen immunization, arthritis progression in the mice was clinically scored twice weekly for 5 weeks. Flow cytometry was used to evaluate in vitro CD4+ T-cell differentiation and ex vivo mast cell/CD4+ T-cell differentiation. Osteoclast formation was evaluated using tartrate-resistant acid phosphatase (TRAP) staining and by estimating the resorption pit area. RESULTS: We found that the clinical arthritis histological scores were lower in the dasatinib pretreatment group than in the vehicle and dasatinib post-treatment groups. Flow cytometry showed that FcεR1+ cells were downregulated and regulatory T cells were upregulated in splenocytes of the dasatinib pretreatment group compared with those in the vehicle group. Additionally, there was a decline in IL-17+ CD4+ T-cell differentiation and an increase in CD4+ CD24high Foxp3+ T-cell differentiation with in vitro dasatinib treatment of human CD4+ T cells. The number of TRAP+ osteoclasts and the area of the resorption were decreased in the bone marrow cells derived from dasatinib-pretreated mice compared with those derived from vehicle group. CONCLUSION: Dasatinib protected against arthritis in an animal model of RA by regulating the differentiation of regulatory T cells and IL-17+ CD4+ T cells and inhibiting osteoclastogenesis, indicating the therapeutic potential of dasatinib in the treatment of early RA.

Revealing the Active Constituents and Mechanisms of Semiliquidambar cathayensis Chang Roots against Rheumatoid Arthritis through Network Pharmacology, Molecular Docking, and in Vivo Experiment.

Semiliquidambar cathayensis Chang roots (SC) are traditional Chinese medicine for treating rheumatoid arthritis (RA). However, the effect and potential mechanism of SC remain unclear. This study aims to reveal the anti-RA constituents and mechanisms of SC based on network pharmacology, molecular docking, and adjuvant-induced arthritis (AIA) model rat experiment. In this work, 9 potential active constituents, including kaempferol, quercetin, naringenin, paeoniflorin, catechin, fraxin, gentianin, hesperetin, and ellagic acid 3,3',4-trimethyl ether, in SC crossed 65 target genes of RA. In addition, 28 core targets were enriched in inflammation and others, among which interleukin-17 (IL-17) and tumor necrosis factor (TNF) were the major targets. The binding of bio-constituents with IL-17 and TNF were performed using molecular docking. Rat experiment demonstrated that the extract of SC restored body weight loss, reduced arthritis score and the indices of thymus and spleen, alleviated ankle joint histopathology, decreased the levels of rheumatoid factor (RF), C-reactive protein (CRP), IL-17, TNF-α, IL-1ß, IL-6, cyclooxygenase-2 (COX-2), 5-lipoxygenase (5-LOX), and matrix metalloproteinase-2 (MMP-2), whereas elevated the levels of IL-4 and IL-10. Collectively, it was the first time to comprehensively reveal the anti-RA efficacy and mechanism of SC via suppressing the inflammatory pathway based on network pharmacology, molecular docking, and experimental verification, which provide chemical and pharmacological evidences for the clinical application of SC.

Relaxin-3 Ameliorates Diabetic Cardiomyopathy by Inhibiting Endoplasmic Reticulum Stress.

Background: This study is aimed at investigating whether relaxin-3 exhibits protective effects against cardiomyopathy in diabetic rats by suppressing ERS. Methods: Eighty male SD rats were randomly divided into two groups: controls (n = 20) and diabetes (n = 60). The streptozotocin-treated rats were randomly divided into three groups: diabetic group (DM), low-dose relaxin-3 group (0.2 µg/kg/d), and high-dose relaxin-3 group (2 µg/kg/d). The myocardial tissues and collagen fiber were observed by hematoxylin and eosin (H&E) and Masson staining. Serum brain natriuretic peptide (BNP), troponin (TNI), myoglobin, interleukin (IL-17), interleukin (IL)-1α, and tumor necrosis factor (TNF)-α were determined by ELISA. The protein expression of glucose regulatory protein 78 (GRP78) and C/EBP homologous protein (CHOP) in the heart tissue of each group was detected by Western blot analysis. Results: (1) HE and Masson staining indicated that relaxin-3 could attenuate myocardial lesions and myocardial collagen volume fraction. (2) BNP, TnI, and myoglobin in the DM group at four and eight weeks were significantly higher than in the controls (P < 0.01). The relaxin-3-treated groups showed significantly reduced serum BNP, TnI, and myoglobin levels compared with the DM group (P < 0.05). (3) IL-17, IL-1α, and TNF-α levels in the DM rats at 4 weeks were higher than in the controls (P < 0.05). Low or high dose of relaxin-3-treated groups showed reduced serum IL-17 and TNF-α levels compared with the DM group at four and eight weeks (P < 0.05). (4) CHOP and GRP78 protein expression was increased in the DM group at four and eight weeks compared with the controls (P < 0.01), and small and large doses of relaxin-3 significantly reduced GRP78 and CHOP protein expression. Conclusions: Exogenous relaxin-3 ameliorates diabetic cardiomyopathy by inhibiting ERS in diabetic rats.

Network Pharmacology and Molecular Docking Analysis on the Pharmacological Mechanisms of Modified Sanmiaosan in Treating Ulcerative Colitis.

Background: Modified Sanmiaosan is an effective cure in the treatment of ulcerative colitis, but its mechanisms of action remain unclear. This study revealed the pharmacological mechanisms of Modified Sanmiaosan acting on ulcerative colitis through a pharmacology approach. Materials and Methods: The active compounds and the targets of Modified Sanmiaosan were selected from the Traditional Chinese Medicine Systems Pharmacology database according to the absorption and metabolism. The UC-related therapeutic targets were collected from the PharmGKB database, the GeneCards database, the GADA database, and the OMIM database. The networks of "drug-component-target-disease" and "herbal-component-target" were constructed by the Cytoscape software. Protein-protein interaction network was generated by the STRING database. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses were performed by the R software. Molecular docking technology was used to identify the affinity and activity between active compounds and targets. Results: The 80 effective ingredients of MSM were collected. A total of 5180 UC-related genes and the 153 key targets of MSM and UC-related were obtained. JUN, Akt1, and MAPK1 were identified as the "hub targets" involved in the effects of Modified Sanmiaosan on ulcerative colitis. Hub targets were mainly involved in inflammatory response and oxidative stress. As the results of GO analysis, biological processes such as DNA-binding transcription and RNA polymerization may participate in the treatment process; KEGG pathway analysis showed that hub targets were mainly involved in IL-17 signal pathway and TNF signal pathway of ulcerative colitis. The high affinity and activity of the active compounds and targets were verified through molecular docking. Conclusion: These findings demonstrate the active ingredients in Modified Sanmiaosan reduce inflammatory response by TNF and IL-17 signaling pathways to treat ulcerative colitis. Anti-inflammation and immune regulation may be the main mechanism of Modified Sanmiaosan in the treatment of ulcerative colitis. This study not only provide new insights into the development of a natural therapy for the prevention and treatment of ulcerative colitis but also proves a feasible method for discovering potential activated compounds from Chinese herbs.

[Effects of different extracts of Dendrobium officinale on rats with chronic pharyngitis induced by pepper water combined with ammonia].

Dendrobium officinale can serve as Chinese medicinal material effective in nourishing yin, clearing heat, and producing fluid, and is used to treat throat diseases, but its active substances and mechanism are not clear. To clarify the active fraction and underlying mechanism of D. officinale against chronic pharyngitis(CP), the present study induced a CP model in rats by pepper water combined with low-concentration ammonia, and crude polysaccharides of D. officinale(DOP), non-polysaccharides of D. officinale(DON), and total extract of D. officinale(DOT)(0.33 g·kg~(-1), calculated according to the crude drug) were administered by gavage for six weeks. The changes in oral secretions and pharyngeal conditions of rats with CP were observed and rated. The hematological indicators were determined by an automatic hematology analyzer. The serum levels of pro-inflammatory factors, such as tumor necrosis factor-alpha(TNF-α), interleukin 1ß(IL-1ß), and interleukin 6(IL-6), and T-lymphocyte cytokines, including interferon γ(IFN-γ), interleukin 4(IL-4), interleukin 17(IL-17), and transforming growth factor ß1(TGF-ß1) were detected by the enzyme-linked immunosorbent assay(ELISA). The proportions of CD3~+, CD4~+, and CD8~+cells in peripheral blood T lymphocyte subsets were determined by the flow cytometry. The histomorphological changes of the pharynx were observed by hematoxylin-eosin(HE) staining. The protein expression of nuclear factor-κB P65(NF-κB P65), cyclooxygenase-2(COX-2), F4/80, and monocyte chemoattractant protein-1(MCP-1) in the pharynx were detected by immunohistochemistry and Western blot. The results showed that DOP and DON could significantly relieve pharyngeal lesions, reduce white blood cells(WBC) and lymphocytes(LYMP), decrease the levels of pro-inflammatory factors TNF-α, IL-6, and IL-1ß, and inhibit the protein expression of NF-κB P65, COX-2, F4/80, and MCP-1 in the pharynx. DOP was superior in reducing oral secretions and serum IL-17 level and inferior in increasing CD4~+/CD8~+ratio to DON. It is suggested that both polysaccharides and non-polysaccharides of D. officinale have anti-PC effects and the anti-inflammatory mechanism may be related to the regulation of T lymphocyte distribution and inhibition of the inflammatory signaling pathways mediated by NF-κB P65. The anti-inflammatory effect of DOP may be related to the regulation of Th17/Treg balance, while that of DON may be related to the regulation of the Th/Tc ratio.

Evidence for anti-inflammatory effects and modulation of neurotransmitter metabolism by Salvia officinalis L.

BACKGROUND: Cognitive health is of great interest to society, with neuroinflammation and systemic inflammation age-related risk factors that are linked to declines in cognitive performance. Several botanical ingredients have been suggested to have benefits in this area including Salvia officinalis (sage), which has shown anti-inflammatory effects and exhibited promising cognitive improvements in multiple human studies. The current study demonstrates anti-inflammatory effects for S. officinalis across a broad set of in vitro models in human cells, and adds further evidence to support modulation of acetylcholine and monoamine neurostransmitter levels as mechanisms that contribute towards the benefits of the herb on cognitive health. METHODS: The effect of S. officinalis extract on release of multiple cytokines and chemokines was measured in human primary intestinal epithelial cells treated with or without LPS stimulation, and Blood Brain Barrier (BBB) cells in presence or absence of recombinant IL-17A and/or Human IL-17RA/IL-17R Antibody. Antioxidant effects were also assessed in BBB cells incubated with the extract and H2O2. The anti-inflammatory effects of S. officinalis extract were further assessed based on clinically-relevant biomarker readouts across 12 human primary cell-based disease models of the BioMAP Diversity PLUS panel. RESULTS: S. officinalis showed significant attenuation of the release of most cytokines/chemokines into apical media in LPS-stimulated intestinal cells, but small increases in the release of markers including IL-6, IL-8 in basolateral media; where TNF-α was the only marker to be significantly reduced. S. officinalis attenuated the release of CRP and VCAM-1 from BBB cells under IL-17A induced conditions, and also decreased H2O2 induced ROS overproduction in these cells. Phenotypic profiling with the BioMAP Diversity PLUS Panel identified additional anti-inflammatory mediators, and based on a similarity search analysis suggested potential mechanistic similarity to caffeic acid and drugs known to inhibit COMT and MAO activity to modulate monoamine metabolism. Subsequent in vitro assessment showed that S. officinalis was able to inhibit the activity of these same enzymes. CONCLUSIONS: S. officinalis extract showed anti-inflammatory effects across multiple human cell lines, which could potentially reduce peripheral inflammation and support cognitive health. S. officinalis extract also showed the ability to inhibit enzymes related to the metabolism of monoamine neurotransmitters, suggesting possible dopaminergic and serotonergic effects acting alongside proposed cholinergic effects to mediate acute cognitive performance benefits previously demonstrated for the extract.

Effect of Warming Yang, Tonifying Kidney, and Removing Arthralgia Therapy on Cold-Dampness Arthralgia Type Ankylosing Spondylitis and Its Influence on the Levels of Humoral Factor in Human Serum.

Objective: This study is aimed at exploring the effect of warming Yang, tonifying kidney, and removing arthralgia therapy in the treatment of cold-dampness arthralgia type ankylosing spondylitis (AS) and the effects on the levels of humoral factor in human serum. Method. A total of 72 patients with cold-dampness arthralgia type AS treated in our hospital from May 2020 to June 2021 were selected and divided into the observation group (n = 36) and control group (n = 36) according to the random number table method. The clinical efficacy of the two groups was observed. The traditional Chinese medicine (TCM) syndrome scores and clinical signs of the two groups were compared, and the pain situation of the two groups was evaluated by visual analog scale (VAS). Bath Ankylosing Spondylitis Disease Activity Index (BASDAI) and Bath Ankylosing Spondylitis Functional Index (BASFI) were used to evaluate the spinal function and activity of the two groups, and the levels of CXC-type chemokine ligand 16 (CXCL16), Dickkopf-1(DKK-1), interleukin-17 (IL-17), tumor necrosis factor-α (TNF-α), sclerostin (SOST) ,and bone morphogenetic protein 2(BMP-2) in serum of the two groups were measured. Results: The total effective rate of the observation group (91.67%) was significantly higher than that of the control group (66.67%) (P < 0.05). After treatment, the degree of improvement in TCM syndrome score, clinical signs, VAS score, BASDAI, BASFI, and the levels of CXCL16, TNF-α, IL-17, DKK-1, SOST, and BMP-2 in the observation group were significantly higher than that in the control group (all P < 0.05). Conclusion. Warming Yang, tonifying kidney, and removing arthralgia therapy had a good effect on the treatment of cold-dampness arthralgia type AS, and it could effectively improve the clinical symptoms and signs, relieve pain, improve spinal motion, and relieve inflammation of patients.

Effects of different extracts of Dendrobium officinale on rats with chronic pharyngitis induced by pepper water combined with ammonia / 中国中药杂志

Dendrobium officinale can serve as Chinese medicinal material effective in nourishing yin, clearing heat, and producing fluid, and is used to treat throat diseases, but its active substances and mechanism are not clear. To clarify the active fraction and underlying mechanism of D. officinale against chronic pharyngitis(CP), the present study induced a CP model in rats by pepper water combined with low-concentration ammonia, and crude polysaccharides of D. officinale(DOP), non-polysaccharides of D. officinale(DON), and total extract of D. officinale(DOT)(0.33 g·kg~(-1), calculated according to the crude drug) were administered by gavage for six weeks. The changes in oral secretions and pharyngeal conditions of rats with CP were observed and rated. The hematological indicators were determined by an automatic hematology analyzer. The serum levels of pro-inflammatory factors, such as tumor necrosis factor-alpha(TNF-α), interleukin 1β(IL-1β), and interleukin 6(IL-6), and T-lymphocyte cytokines, including interferon γ(IFN-γ), interleukin 4(IL-4), interleukin 17(IL-17), and transforming growth factor β1(TGF-β1) were detected by the enzyme-linked immunosorbent assay(ELISA). The proportions of CD3~+, CD4~+, and CD8~+cells in peripheral blood T lymphocyte subsets were determined by the flow cytometry. The histomorphological changes of the pharynx were observed by hematoxylin-eosin(HE) staining. The protein expression of nuclear factor-κB P65(NF-κB P65), cyclooxygenase-2(COX-2), F4/80, and monocyte chemoattractant protein-1(MCP-1) in the pharynx were detected by immunohistochemistry and Western blot. The results showed that DOP and DON could significantly relieve pharyngeal lesions, reduce white blood cells(WBC) and lymphocytes(LYMP), decrease the levels of pro-inflammatory factors TNF-α, IL-6, and IL-1β, and inhibit the protein expression of NF-κB P65, COX-2, F4/80, and MCP-1 in the pharynx. DOP was superior in reducing oral secretions and serum IL-17 level and inferior in increasing CD4~+/CD8~+ratio to DON. It is suggested that both polysaccharides and non-polysaccharides of D. officinale have anti-PC effects and the anti-inflammatory mechanism may be related to the regulation of T lymphocyte distribution and inhibition of the inflammatory signaling pathways mediated by NF-κB P65. The anti-inflammatory effect of DOP may be related to the regulation of Th17/Treg balance, while that of DON may be related to the regulation of the Th/Tc ratio.

Fibrosis pulmonar inducida por metotrexato en un paciente con psoriasis / Methotrexate-induced pulmonary fibrosis in a patient with psoriasis

La fibrosis pulmonar a causa del metotrexato es un efecto adverso infrecuente, observado principalmente en los pacientes con artritis reumatoide, aunque también se vio, de manera escasa, en el tratamiento de la psoriasis. Se presenta el caso de un paciente con psoriasis que desarrolló fibrosis pulmonar por metotrexato.

Pulmonary fibrosis due to methotrexate is an infrequent adverse event, observed mainly in patients with rheumatoid arthritis, although it has also been poorly described in the treatment of psoriasis. We present the case of a patient with psoriasis who developed pulmonary fibrosis due to methotrexate.

Ixequizumabe para tratamento de pacientes adultos com psoríase moderada a grave, que tenham apresentado falha terapêutica, contraindicação ou intolerância ao adalimumabe / Ixequizumab for the treatment of adult patients with moderate to severe psoriasis who have therapeutic failure, contraindication or intolerance to adalimumab

Introdução: A psoriase e uma doenca inflamatoria sistemica cronica com manifestacoes frequentemente cutaneas, ungueais e articulares, cursando normalmente de forma remitente e recorrente. Com distribuicao similar entre os sexos e ocorrencia mais frequente entre a terceira e quarta decadas de vida, sua prevalencia no Brasil e estimada entre 1,31% a 2,5%. No SUS, os pacientes possuem garantia de acesso aos tratamentos preconizados em diretrizes terapeuticas, onde o tratamento e iniciado com farmacos por via topica, seguidos de outras opcoes como a fototerapia, medicamentos por via oral e injetaveis de acordo com a gravidade. Os fármacos sistemicos indicados em primeira linha incluem o metotrexato, acitretina e ciclosporina. Em caso de falha destes medicamentos, estao disponiveis outros, quatro biologicos, sendo dois da classe dos anti-TNF (adalimumabe e etanercepte) e dois medicamentos anti-interleucinas, um da classe dos anti-IL12/23 (ustequinumabe) e outro da classe dos anti-IL17 (secuquinumabe). PERGUNTA: O uso de ixequizumabe e eficaz, seguro e custo-efetivo para a segunda etapa de tratamento biologico de pacientes adultos com psoriase em placas moderada a grave, quando comparado as terapias sistemicas biologicas aprovadas pela Conitec nessa etapa de tratamento (ustequinumabe e secuquinumabe)? TECNOLOGIA: Ixequizumabe. EVIDÊNCIAS CIENTÍFICAS: Com uso de meta-analise em rede, uma revisao sistematica da Colaboracao Cochrane teve o objetivo de comparar e hierarquizar os agentes sistêmicos convencionais e biologicos para pacientes com psoriase moderada a grave de acordo com sua eficacia e seguranca. Apos buscas amplas, a revisao incluiu 140 estudos avaliando 19 diferentes tratamentos com um total de 51.749 participantes randomizados e idade media de 45 anos. Todos os resultados (exceto dois estudos) foram limitados a fase de inducao (de 8 a 24 semanas apos a randomizacao). Problemas com o cegamento dos pacientes e envolvidos (performance) e dos avaliadores foram os riscos mais frequentemente identificados. Dentre outros riscos, ressalta-se que a maioria dos estudos declarou financiamento por uma empresa farmaceutica e 22 estudos nao relataram a fonte de financiamento. No desfecho de PASI 90, o resultado da meta-analise em rede destaca que ambos os medicamentos anti-IL17 (ixequizumabe e secuquinumabe) foram significativamente mais efetivos que o ustequinumabe e o adalimumabe. No desfecho do PASI 75 a classe de medicamentos anti-IL17 tambem foi associada a uma maior probabilidade de atingi-lo em comparacao as outras classes. Em relação ao desfecho de eventos adversos graves (EAG), os medicamentos infliximabe, ixequizumabe e secuquinumabe apresentaram maior risco de EAG do que o metotrexato. Associacoes estatisticamente significativas foram encontradas demonstrando que os anti-IL17 apresentam maior risco de eventos adversos em geral em comparacao aos anti-IL23 e anti-IL12/23. O nível de certeza das evidencias de efetividade do ixequizumabe foi considerado moderado (com reducoes devido a inconsistencias) e no desfecho de eventos adversos graves foi considerado moderado (com reducoes devido a imprecisao). AVALIAÇÃO ECONÔMICA: Considerando que a "analise de custo por resposta" enviada pelo demandante carece do rigor metodologico das avaliacoes economicas completas, foi elaborado um novo modelo de custo-efetividade contemplando todas as opcoes disponiveis no SUS e em analise pela Conitec para o tratamento da psoriase moderada a grave. Seguindo a proposta do modelo bastante difundido e concebido por pesquisadores da Universidade de York, foi construido um modelo de arvore de decisao (periodo de inducao) acoplado a um modelo de Markov (periodo de manutencao), buscando analisar os custos e consequencias em termos de anos de vida ajustados pela qualidade (QALY) com as seguintes estrategias de tratamento: ixequizumabe; secuquinumabe; ustequinumabe; risanquizumabe; adalimumabe e infliximabe. Com os resultados do modelo, a partir da analise da fronteira de eficiencia, observa-se a dominancia (efetividade menor e maior custo) dos tratamentos com infliximabe (dominância simples) e secuquinumabe (dominancia estendida) pelos tratamentos com adalimumabe, ustequinumabe e ixequizumabe. O tratamento com risanquizumabe apresenta um valor de efetividade limitrofe com o ixequizumabe, contudo, a um custo muito superior. Ao realizar a analise de limiar por meio da abordagem da fronteira de eficiencia, observa-se que seria necessario que o preco dos medicamentos secuquinumabe, ixequizumabe e risanquizumabe tivessem uma reducao de preco de pelo menos 10,74%, 9,08% e 55,09%, respectivamente, para serem considerados custo-efetivos. Na curva de aceitabilidade de acordo com o escalonamento progressivo da disposicao a pagar, os tratamentos com maior probabilidade de serem custoefetivos foram o adalimumabe, seguido do ustequinumabe e, por fim, o ixequizumabe. AVALIAÇÃO DE IMPACTO ORÇAMENTÁRIO: O demandante encaminhou uma analise de impacto orcamentario que, apos analise critica, considerou-se um modelo adequado e coerente com discussoes anteriores na Conitec. Todavia, alguns de seus dados foram revisados e atualizados resultando em novos valores de impacto. Em sua versao original, o demandante apresentava uma economia de R$ 14.322.953,00. Contudo, apos as atualizacoes dos custos e da taxa de falha ao adalimumabe descritas, estima-se um impacto incremental de R$ 4.052.249,89 ao longo de cinco anos. MONITORAMENTO DO HORIZONTE TECNOLÓGICO: Foram detectadas no horizonte sete potenciais tecnologias para pacientes adultos com psoriase moderada a grave, apos falha da primeira etapa da segunda linha de tratamento: apremislate, bimequizumabe, BMS-986165, brodalumabe, guselcumabe, miriquizumabe e piclidenoson. CONSIDERAÇÕES: A partir das estimativas de efetividade comparativa disponiveis por meio de meta-analises em rede, e possivel observar que o ixequizumabe e o secuquinumabe foramsignificativamente mais efetivos que o ustequinumabe e o adalimumabe. Em relacao a seguranca, observam-se associacoes estatisticamente significativas de que os anti-IL17 apresentam maior risco de eventos adversos em geral em comparacao aos anti-IL23 e anti- IL12/23. O nivel de certeza das evidencias de efetividade foi considerado moderado tanto nos desfechos de efetividade e seguranca para o ixequizumabe. Na curva de aceitabilidade de acordo com a disposicao a pagar, os tratamentos com maior probabilidade de serem custoefetivos foram o adalimumabe, seguido do ustequinumabe e, por fim, o ixequizumabe. Por meio de uma reducao plausivel de preco, e possivel que o ixequizumabe apresente um perfil de custoefetividade semelhante aos tratamentos mais eficientes disponiveis no SUS. Apos as atualizacoes do modelo de impacto orcamentario encaminhado, estima-se um impacto incremental de R$ 4.052.249,89 ao longo de cinco anos com a incorporacao do ixequizumabe ao SUS. RECOMENDAÇÃO PRELIMINAR: Pelo exposto, a CONITEC, em sua 85a reuniao ordinaria, no dia 04 de fevereiro de 2020, recomendou a nao incorporacao no SUS do ixequizumabe para o tratamento de pacientes adultos com psoriase moderada a grave, que tenham apresentado falha terapeutica, contraindicacao ou intolerancia ao adalimumabe. Considerou-se que, apesar do ixequizumabe estar associado a beneficios incrementais em termos de efetividade no tratamento da condicao clinica em analise, sua eficiencia (custo-efetividade) e inferior aos tratamentos ja disponiveis no SUS com base no preco proposto pelo fabricante. A materia foi disponibilizada em consulta publica. CONSULTA PÚBLICA: Foram recebidas 142 contribuicoes tecnico-cientificas e 280 contribuicoes de experiencia ou opiniao, sendo a maioria discordante da recomendacao preliminar da CONITEC. Apos analise do texto das contribuicoes, foram identificados pontos como necessidade de mais alternativas terapeuticas ou mecanismos de acao, superioridade dentre os tratamentos disponiveis, assim como foram apresentados novas propostas de preco e limitacoes da analise preliminar. O laboratorio fabricante ofereceu uma nova proposta de preco equivalente a reducao de 2,7% do preco proposto inicialmente. No modelo atualizado, apresenta-se como uma opcao mais custo-efetiva que o secuquinumabe, porem, menos custo-efetiva que o tratamento com a tecnologia também em analise risanquizumabe. Um novo modelo de impacto orcamentario tambem foi apresentado indicando uma reducao de gastos de ate R$ 37.955.681,00 ao longo dos 5 anos na ocasiao de incorporacao na mesma linha e indicacao do secuquinumabe. Apos apreciacao das contribuicoes encaminhadas pela Consulta Publica, incluindo o destaque para a superioridade em relacao ao adalimumabe e ustequinumabe, limitacoes dos modelos apresentados, experiencias profissionais e pessoais com o tratamento e as novas propostas de preco, o plenario da Conitec entendeu que nao houve argumentacao suficiente para alterar a recomendacao inicial desfavoravel a incorporacao, em relacao ao nivel de eficiencia do tratamento em analise (custo-efetividade), no contexto proposto no SUS. RECOMENDAÇÃO FINAL: Os membros da Conitec, presentes na 89a reuniao ordinaria, no dia 6 de agosto de 2020, deliberaram, por unanimidade, recomendar a nao incorporacao no SUS do ixequizumabe para o tratamento de pacientes adultos com psoriase moderada a grave, que tenham apresentado falha terapeutica, contraindicacao ou intolerancia ao adalimumabe. DECISÃO: Nao incorporar o ixequizumabe para tratamento de pacientes adultos com psoríase moderada a grave, que tenham apresentado falha terapeutica, contraindicacao ou intolerância ao adalimumabe, no ambito do Sistema Unico de Saude - SUS, conforme Portaria no 27, publicada no Diario Oficial da Uniao no 160, secao 1, pagina 117, em 20 de agosto de 2020.

Eficacia y seguridad de los fármacos inhibidores de la interleucina-17 en la artritis psoriásica / Efficacy and safety of interleukin-17 inhibiting drugs in psoriatic arthritis

En los últimos años se ha avanzado en el entendimiento de los mecanismos patogénicos de la artritis psoriásica, dando protagonismo a citocinas implicadas en el eje interleucina (IL)-23/Th17, fundamentalmente la IL-17. Así, se han desarrollado fármacos que inhiben la acción de esta citocina de forma eficaz y segura a tenor de los resultados de los distintos ensayos clínicos realizados. Este artículo revisa la eficacia terapéutica del secukinumab, ixekizumab y brodalumab en el tratamiento de la artritis psoriásica, así como la tolerabilidad y las seguridad de estos fármacos, y que muestran los datos de los ensayos clínicos que se han comunicado en distintas publicaciones o presentado en los últimos congresos de reumatología y que demostraron que, en comparación con placebo, son eficaces para mejorar los signos y síntomas de la artritis psoriásica en pacientes con enfermedad activa a pesar del tratamiento previo con fármacos antiinflamatorios no esteroideos, fármacos reumáticos modificadores de la enfermedad o inhibidores del factor de necrosis tumoral alfa. Aunque será la práctica clínica la que dirá a medio y largo plazo cuál es su sitio en el arsenal terapéutico de la artritis psoriásica, los datos clínicos actuales son muy prometedores

In recent years, our understanding of the pathogenic mechanisms of psoriatic arthritis (PsA) has improved, lending prominence to cytokines involved in the interleukin-23 (IL-23)/Th17 axis, basically IL-17. Consequently, drugs have been developed that effectively and safely inhibit the action of that cytokine, as demonstrated by the results of the various clinical trials carried out. This article reviews the therapeutic efficacy of secukinumab, ixekizumab and brodalumab in the treatment of PsA, in addition to the tolerability and safety of these agents. We provide the data of the clinical trials reported in different publications or presented at the latest rheumatology meetings, that reveal their efficacy, as compared to placebo, in improving the signs and symptoms of PsA in patients with active disease, despite previous treatment with nonsteroidal anti-inflammatory drugs, disease-modifying antirheumatic drugs or tumor necrosis factor a inhibitors. The findings in clinical practice over the medium and long term will indicate their place in the therapeutic arsenal of PsA. However, the clinical data at this time are very promising

Novel approaches to biological therapy for psoriatic arthritis.

INTRODUCTION: Improved understanding of the immunopathogenic mechanisms in psoriatic arthritis (PsA) has led to the development of targeted biological therapies, which demonstrate superior clinical efficacy to traditional disease-modifying antirheumatic drugs (DMARDs). There are currently 3 classes of biological agents that are approved for the treatment of psoriatic disease: tumor necrosis factor alpha inhibitors (TNFi), including etanercept, infliximab, adalimumab, golimumab, and certolizumab pegol; ustekinumab, a monoclonal antibody (mAb) directed against interleukin (IL)-12 and IL-23; and secukinumab, a human anti-IL-17A mAb. Other agents are in development. Our growing experience with these medications has revolutionized the approach to disease management in PsA. AREAS COVERED: This article discusses the rationale for using biological therapies in PsA, highlighting clinical trial evidence that supports the use of these agents. We summarize novel treatment approaches using biological therapies in the management of PsA, including early intervention, targeted therapy, TNFi switching, combination therapy, and tapering or discontinuation of biological therapy. We conclude with a discussion of the importance comorbidities have on selection of therapy. EXPERT OPINION: The advent of highly effective biological therapies has revolutionized the management of patients with PsA. Growing experience with these agents has led to novel treatment approaches that may improve clinical outcomes for PsA patients.

Exogenous interleukin-17A inhibits eosinophil differentiation and alleviates allergic airway inflammation.

IL-17 is known to play important roles in immune and inflammatory disease, such as in asthma, but its functions in allergic airway inflammation are still controversial, and the molecular mechanisms mediating these functions remain unclear. Increased production of eosinophils in bone marrow and their emergence in the airway have been linked to the onset and progression of allergic asthma. In this study, we investigated the effects of exogenous IL-17 on allergic airway inflammation and explored the underlying molecular mechanisms through eosinophil generation. Exogenous IL-17 significantly attenuated the features of allergic inflammation induced by ovalbumin in mice. It inhibited eosinophil differentiation both in vivo and in vitro, accompanied by down-regulated expression of CC chemokine receptor 3, GATA binding protein 1 (GATA-1), and GATA binding protein 2 (GATA-2), as well as reduced formation of common myeloid progenitors and eosinophil progenitors, but without influencing eosinophil apoptosis. IL-17 also significantly decreased the number of eosinophils in IL-5-transgenic mice, although it notably increased the levels of IL-3, IL-5, and granulocyte/macrophage colony-stimulating factor. In addition, IL-17 had little effect on secretion of the inflammatory cytokines by eosinophils. Neutralization of endogenous IL-17 significantly augmented eosinophil recruitment in the airways. Together, these findings suggest that exogenous IL-17 protects against allergic airway inflammation, most likely through inhibition of the eosinophil differentiation in bone marrow.

IL-25 improves IgA levels during parenteral nutrition through the JAK-STAT pathway.

INTRODUCTION: Parenteral nutrition (PN) impairs mucosal immunity and increases the risk of infection in part via lower IgA levels at mucosal surfaces. Transport of immunoglobulin A (IgA) across the mucosa to the gut lumen depends on the epithelial transport protein, polymeric immunoglobulin receptor (pIgR), which is reduced during PN. In vitro, studies demonstrate that IL-4 up-regulates pIgR production via Janus kinase/signal transducers and activators of transcription (JAK/STAT) signaling. Because IL-4 stimulates IgA and is reduced during PN, we hypothesized that the suppressed pIgR is a result of decreased JAK-1 and STAT-6 phosphorylation. Because IL-4 is mediated by IL-25, we also hypothesized that PN + IL-25 would restore luminal IgA by increasing phosphorylated JAK-1 and STAT-6, resulting in increased tissue pIgR and luminal IgA. METHOD: Experiment 1: 2 days after intravenous cannulation, male Institute of Cancer Research mice were randomized to chow (n = 11) or PN (n = 9). Experiment 2: 2 days after intravenous cannulation, male Institute of Cancer Research mice were randomized to chow (n = 12), PN (n = 10), or PN + 0.7 µg of exogenous IL-25 (n = 11) per day. After 5 days, distal ileum tissue was collected, homogenized, and protein extracted for JAK-STAT expression levels using a phospho-specific antibody microarray. Tissue was homogenized to measure pIgR expression via Western blot or fixed in 4% paraformaldehyde to measure pIgR expression via immunohistochemistry. Small intestinal wash fluid was collected and IgA was quantified using enzyme-linked immunosorbent assay. RESULTS: Experiment 1: PN significantly reduced phosphorylated JAK-1 and STAT-6 compared with chow. PN also decreased the tissue levels of the Th2 cytokines, IL-4 and IL-13, as well as pIgR, and luminal IgA compared with chow. Experiment 2: Exogenous administration of PN + IL-25 increased the phosphorylated JAK-1 and STAT-6 compared with PN alone. IL-25 completely restored expression of IL-13 to chow levels. IL-4, pIgR, IgA, and phosphorylated JAK-1 were significantly increased with IL-25 treatment compared with PN but failed to reach levels measured in chow. STAT-6 was significantly increased with IL-25 treatment compared with chow and PN. CONCLUSIONS: PN significantly decreases the JAK-STAT pathway by reducing levels of phosphorylated STAT-6 and JAK-1. Consistent with our previous work, sIgA, pIgR, and IL-4 decreased with PN, whereas the addition of IL-25 to PN reversed these decreases and demonstrated the role of the JAK-STAT pathway in vivo during PN.

Cardiovascular risk and psoriasis: the role of biologic therapy.

One of the most clinically important aspects of recent advances in our understanding of psoriasis has been the detection of an association between this disease and an increased prevalence of cardiovascular risk factors. This increase in prevalence is, in turn, linked to a greater risk of morbidity and mortality related to acute myocardial infarction, cerebrovascular accident, and peripheral arterial disease. The chronic systemic inflammation present in psoriasis could explain why moderate to severe psoriasis is an independent risk factor for cardiovascular disease. The introduction of biologic therapies has greatly improved the expectations of treatment as well as the long-term control of psoriasis, and there is epidemiological evidence that these therapies may lower cardiovascular risk in psoriasis as they do in rheumatoid arthritis. Caution should, however, be exercised when prescribing biologic drugs in this setting, because adverse effects have been reported in association with the use of tumor necrosis factor inhibitors in patients with advanced congestive heart failure. Furthermore, a numerical imbalance (without statistical significance) between the groups receiving the biologic drug and the placebo groups was recently observed in the incidence of major cardiovascular events (nonfatal myocardial infarction and cerebrovascular accident and cardiovascular death) during the controlled periods of clinical trials of briakinumab and ustekinumab, 2 monoclonal antibodies that target the p40 subunit shared by IL-12 and IL-23. We review the current scientific evidence on this topic.

Interleukin-27 inhibits pediatric B-acute lymphoblastic leukemia cell spreading in a preclinical model.

B-acute lymphoblastic leukemia (B-ALL) represents the most common pediatric hematological tumor that derives from the aberrant proliferation of early B lymphocytes in the bone marrow. Although most of the B-ALL children take advantage from current therapeutic protocols, some patients relapse and need alternative therapies. With this background, we investigated whether interleukin (IL)-27, an immunomodulatory cytokine with antitumor properties, may function as an antitumor agent against pediatric B-ALL cells. Here we show for the first time that pediatric B-ALL cells functional IL-27R and that IL-27 dampens directly tumor growth in vivo and in vitro through mechanisms elucidated in this study. The novelty of these results deals with the first demonstration that (1) B-ALL cells from pediatric patients injected intravenously (i.v.) into NOD/SCID/Il2rg(-/-) (NSG) mice gave rise to leukemic spreading that was severely hampered by IL-27; (2) IL-27-treated mice, compared with controls, showed significant reduction of putative B-ALL-initiating cells and blasts in the peripheral blood (PB), bone marrow (BM) and spleen; and that (3) IL-27 reduced in vitro B-ALL cell proliferation and angiogenesis, induced apoptosis and downregulated miR-155. Our results strongly encourage the development of future clinical trials to evaluate the toxicity and efficacy of IL-27 in childhood B-ALL patients.