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1.
Biochem Biophys Res Commun ; 716: 150020, 2024 Jul 05.
Artigo em Inglês | MEDLINE | ID: mdl-38692011

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a chronic and progressive disease with high mortality rates. It has been shown that pirfenidone (PFD) and nintedanib (Ofev) can slow down the decline in lung function of IPF patients, but their efficacy remains suboptimal. Some studies have suggested that the combination of PFD and Ofev may yield promising results. However, there is a lack of research on the combined application of these two medications in the treatment of IPF. A mouse model of bleomycin-induced (BLM) pulmonary fibrosis was established to investigate the impact of combination therapy on pulmonary fibrosis of mice. The findings demonstrated a significant reduction in lung tissue damage in mice treated with the combination therapy. Subsequent transcriptome analysis identified the differential gene secreted phosphoprotein 1 (SPP1), which was found to be associated with macrophages and fibroblasts based on multiple immunofluorescence staining results. Analysis of a phosphorylated protein microarray indicated that SPP1 plays a regulatory role in macrophages and fibroblasts via the AKT pathway. Consequently, the regulation of macrophages and fibroblasts in pulmonary fibrosis by the combination of PFD and Ofev is mediated by SPP1 through the AKT pathway, potentially offering a novel therapeutic option for IPF patients. Further investigation into the targeting of SPP1 for the treatment of pulmonary fibrosis is warranted.


Assuntos
Fibroblastos , Indóis , Macrófagos , Camundongos Endogâmicos C57BL , Osteopontina , Proteínas Proto-Oncogênicas c-akt , Piridonas , Animais , Piridonas/farmacologia , Piridonas/uso terapêutico , Indóis/farmacologia , Indóis/uso terapêutico , Fibroblastos/efeitos dos fármacos , Fibroblastos/metabolismo , Fibroblastos/patologia , Proteínas Proto-Oncogênicas c-akt/metabolismo , Macrófagos/efeitos dos fármacos , Macrófagos/metabolismo , Camundongos , Osteopontina/metabolismo , Osteopontina/genética , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/metabolismo , Fibrose Pulmonar Idiopática/patologia , Fibrose Pulmonar Idiopática/induzido quimicamente , Transdução de Sinais/efeitos dos fármacos , Antifibróticos/farmacologia , Antifibróticos/uso terapêutico , Masculino , Quimioterapia Combinada , Bleomicina
2.
Respir Res ; 25(1): 255, 2024 Jun 21.
Artigo em Inglês | MEDLINE | ID: mdl-38907239

RESUMO

BACKGROUND: Idiopathic pulmonary fibrosis (IPF) is a devastating interstitial lung disease (ILD) with a high mortality rate. The antifibrotic medications pirfenidone and nintedanib have been in use since 2014 for this disorder and are associated with improved rate of lung function decline. Less is known about their long-term outcomes outside of the clinical trial context. METHODS: The Pulmonary Fibrosis Foundation Patient Registry was used for this study. Patients with an IPF diagnosis made within a year of enrollment were included. The treated group was defined as patients receiving either pirfenidone or nintedanib for at least 180 days. The untreated group did not have any record of antifibrotic use. Demographic data, comorbidities, serial lung function, hospitalization, and vital status data were collected from the registry database. The primary outcomes were transplant-free survival, time to first respiratory hospitalization, and time to 10% absolute FVC decline. Time-to-event analyses were performed utilizing Cox proportional hazards models and the log-rank test. Model covariates included age, gender, smoking history, baseline lung function, comorbidities, and oxygen use. RESULTS: The registry contained 1212 patients with IPF; ultimately 288 patients met inclusion criteria for the treated group, and 101 patients were designated as untreated. Patients treated with antifibrotics were significantly younger (69.8 vs. 72.6 years, p = 0.008) and less likely to have smoked (61.1% ever smokers vs. 72.3% never smokers, p = 0.04). No significant differences were seen in race, gender, comorbidities, or baseline pulmonary function between groups. The primary outcome of transplant-free survival was not significantly different between the two groups (adjusted HR 0.799, 95% CI 0.534-1.197, p = 0.28). Time to respiratory hospitalization was significantly shorter in the treated group (adjusted HR 2.12, 95% CI 1.05-4.30, p = 0.04). No significant difference in time to pulmonary function decline was seen between groups. CONCLUSIONS: This multicenter study demonstrated 63% of newly diagnosed IPF patients had continuous antifibrotic usage. Antifibrotics were not associated with improved transplant-free survival or pulmonary function change but was associated with an increased hazard of respiratory hospitalization. Future studies should further investigate the role of antifibrotic therapy in clinically important outcomes in real-world patients with IPF and other progressive ILDs.


Assuntos
Antifibróticos , Fibrose Pulmonar Idiopática , Indóis , Piridonas , Sistema de Registros , Humanos , Masculino , Feminino , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/mortalidade , Fibrose Pulmonar Idiopática/diagnóstico , Idoso , Pessoa de Meia-Idade , Antifibróticos/uso terapêutico , Resultado do Tratamento , Piridonas/uso terapêutico , Indóis/uso terapêutico , Fatores de Tempo
3.
Expert Opin Emerg Drugs ; 29(2): 177-186, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38588523

RESUMO

INTRODUCTION: Idiopathic pulmonary fibrosis (IPF) is a progressive, debilitating lung disease with poor prognosis. Although two antifibrotics have been approved in the past decade there are no curative therapies. AREAS COVERED: This review highlights the current landscape of IPF research in the development of novel compounds for the treatment of IPF while also evaluating repurposed medications and their role in the management of IPF. The literature search includes studies found on PubMed, conference abstracts, and press releases until March 2024. EXPERT OPINION: Disease progression in IPF is driven by a dysregulated cycle of microinjury, aberrant wound healing, and propagating fibrosis. Current drug development focuses on attenuating fibrotic responses via multiple pathways. Phosphodiesterase 4 inhibitors (PDE4i), lysophosphatidic acid (LPA) antagonists, dual-selective inhibitor of αvß6 and αvß1 integrins, and the prostacyclin agonist Treprostinil have had supportive phase II clinical trial results in slowing decline in forced vital capacity (FVC) in IPF. Barriers to drug development specific to IPF include the lack of a rodent model that mimics IPF pathology, the nascent understanding of the role of genetics affecting development of IPF and response to treatment, and the lack of a validated biomarker to monitor therapeutic response in patients with IPF. Successful treatment of IPF will likely include a multi-targeted approach anchored in precision medicine.


Assuntos
Ensaios Clínicos Fase II como Assunto , Progressão da Doença , Desenvolvimento de Medicamentos , Fibrose Pulmonar Idiopática , Humanos , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/fisiopatologia , Animais , Antifibróticos/farmacologia , Ensaios Clínicos Fase III como Assunto , Inibidores da Fosfodiesterase 4/farmacologia , Reposicionamento de Medicamentos , Capacidade Vital , Modelos Animais de Doenças
4.
Pharmacol Res ; 205: 107245, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38821150

RESUMO

Fibrosis is a common pathological process that can affect virtually all the organs, but there are hardly any effective therapeutic options. This has led to an intense search for antifibrotic therapies over the last decades, with a great number of clinical assays currently underway. We have systematically reviewed all current and recently finished clinical trials involved in the development of new antifibrotic drugs, and the preclinical studies analyzing the relevance of each of these pharmacological strategies in fibrotic processes affecting tissues beyond those being clinically studied. We analyze and discuss this information with the aim of determining the most promising options and the feasibility of extending their therapeutic value as antifibrotic agents to other fibrotic conditions.


Assuntos
Antifibróticos , Fibrose , Humanos , Animais , Fibrose/tratamento farmacológico , Antifibróticos/uso terapêutico
5.
Bioorg Chem ; 143: 107022, 2024 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-38142558

RESUMO

Liver fibrosis remains a global health challenge due to its rapidly rising prevalence and limited treatment options. The orphan nuclear receptor Nur77 has been implicated in regulation of autophagy and liver fibrosis. Targeting Nur77-mediated autophagic flux may thus be a new promising strategy against hepatic fibrosis. In this study, we synthesized four types of Nur77-based thiourea derivatives to determine their anti-hepatic fibrosis activity. Among the synthesized thiourea derivatives, 9e was the most potent inhibitor of hepatic stellate cells (HSCs) proliferation and activation. This compound could directly bind to Nur77 and inhibit TGF-ß1-induced α-SMA and COLA1 expression in a Nur77-dependent manner. In vivo, 9e significantly reduced CCl4-mediated hepatic inflammation response and extracellular matrix (ECM) production, revealing that 9e is capable of blocking the progression of hepatic fibrosis. Mechanistically, 9e induced Nur77 expression and enhanced autophagic flux by inhibiting the mTORC1 signaling pathway in vitro and in vivo. Thus, the Nur77-targeted lead 9e may serve as a promising candidate for treatment of chronic liver fibrosis.


Assuntos
Antifibróticos , Tiossemicarbazonas , Humanos , Tiossemicarbazonas/metabolismo , Células Estreladas do Fígado , Fígado/metabolismo , Cirrose Hepática/metabolismo , Tioureia/metabolismo , Tetracloreto de Carbono
6.
Respirology ; 29(1): 71-79, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37789612

RESUMO

BACKGROUND: Antifibrotic agents (AFAs) are now standard-of-care for idiopathic pulmonary fibrosis (IPF). Concerns have arisen about the safety of these drugs in patients undergoing lung transplantation (LTx). METHODS: We performed a multi-centre, nationwide, retrospective, observational study of French IPF patients undergoing LTx between 2011 and 2018 to determine whether maintaining AFAs in the peri-operative period leads to increased bronchial anastomoses issues, delay in skin healing and haemorrhagic complications. We compared the incidence of post-operative complications and the survival of patients according to AFA exposure. RESULTS: Among 205 patients who underwent LTx for IPF during the study period, 58 (28%) had received AFAs within 4 weeks before LTx (AFA group): pirfenidone in 37 (18.0%) and nintedanib in 21 (10.2%). The median duration of AFA treatment before LTx was 13.8 (5.6-24) months. The AFA and control groups did not significantly differ in airway, bleeding or skin healing complications (p = 0.91, p = 0.12 and p = 0.70, respectively). Primary graft dysfunction was less frequent in the AFA than control group (26% vs. 43%, p = 0.02), and the 90-day mortality was lower (7% vs. 18%, p = 0.046). CONCLUSIONS: AFA therapy did not increase airway, bleeding or wound post-operative complications after LTx and could be associated with reduced rates of primary graft dysfunction and 90-day mortality.


Assuntos
Fibrose Pulmonar Idiopática , Transplante de Pulmão , Disfunção Primária do Enxerto , Humanos , Antifibróticos , Estudos Retrospectivos , Disfunção Primária do Enxerto/tratamento farmacológico , Disfunção Primária do Enxerto/etiologia , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/cirurgia , Transplante de Pulmão/efeitos adversos , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Piridonas/efeitos adversos , Resultado do Tratamento
7.
Biochemistry (Mosc) ; 89(5): 942-957, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38880654

RESUMO

Extensive skin damage requires specialized therapy that stimulates regeneration processes without scarring. The possibility of using combination of a collagen gel application as a wound dressing and fibroblast attractant with verteporfin as an antifibrotic agent was examined in vivo and in vitro. In vitro effects of verteporfin on viability and myofibroblast markers expression were evaluated using fibroblasts isolated from human scar tissue. In vivo the collagen gel and verteporfin (individually and in combination) were applied into the wound to investigate scarring during skin regeneration: deviations in skin layer thickness, collagen synthesis, and extracellular matrix fibers were characterized. The results indicate that verteporfin reduces fibrotic phenotype by suppressing expression of the contractile protein Sm22α without inducing cell death. However, administration of verteporfin in combination with the collagen gel disrupts its ability to direct wound healing in a scarless manner, which may be related to incompatibility of the mechanisms by which collagen and verteporfin control regeneration.


Assuntos
Colágeno , Fibroblastos , Verteporfina , Verteporfina/farmacologia , Verteporfina/uso terapêutico , Humanos , Colágeno/metabolismo , Fibroblastos/efeitos dos fármacos , Fibroblastos/metabolismo , Animais , Cicatrização/efeitos dos fármacos , Antifibróticos/farmacologia , Antifibróticos/uso terapêutico , Células Cultivadas , Alicerces Teciduais/química , Cicatriz/tratamento farmacológico , Cicatriz/patologia , Cicatriz/metabolismo , Masculino , Fibrose , Pele/efeitos dos fármacos , Pele/patologia , Pele/metabolismo
8.
Lung ; 202(3): 331-342, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38642135

RESUMO

BACKGROUND: Lung fibrosis is a chronic lung disease with a high mortality rate with only two approved drugs (pirfenidone and nintedanib) to attenuate its progression. To date, there are no reliable biomarkers to assess fibrosis development and/or treatment effects for these two drugs. Osteoprotegerin (OPG) is used as a serum marker to diagnose liver fibrosis and we have previously shown it associates with lung fibrosis as well. METHODS: Here we used murine and human precision-cut lung slices to investigate the regulation of OPG in lung tissue to elucidate whether it tracks with (early) fibrosis development and responds to antifibrotic treatment to assess its potential use as a biomarker. RESULTS: OPG mRNA expression in murine lung slices was higher after treatment with profibrotic cytokines TGFß1 or IL13, and closely correlated with Fn and PAI1 mRNA expression. More OPG protein was released from fibrotic human lung slices than from the control human slices and from TGFß1 and IL13-stimulated murine lung slices compared to control murine slices. This OPG release was inhibited when murine slices were treated with pirfenidone or nintedanib. OPG release from human fibrotic lung slices was inhibited by pirfenidone treatment. CONCLUSION: OPG can already be detected during the early stages of fibrosis development and responds, both in early- and late-stage fibrosis, to treatment with antifibrotic drugs currently on the market for lung fibrosis. Therefore, OPG should be further investigated as a potential biomarker for lung fibrosis and a potential surrogate marker for treatment effect.


Assuntos
Antifibróticos , Biomarcadores , Indóis , Pulmão , Osteoprotegerina , Fibrose Pulmonar , Piridonas , Fator de Crescimento Transformador beta1 , Animais , Osteoprotegerina/metabolismo , Osteoprotegerina/genética , Humanos , Indóis/farmacologia , Biomarcadores/sangue , Biomarcadores/metabolismo , Fator de Crescimento Transformador beta1/metabolismo , Fator de Crescimento Transformador beta1/genética , Pulmão/patologia , Pulmão/efeitos dos fármacos , Pulmão/metabolismo , Fibrose Pulmonar/metabolismo , Fibrose Pulmonar/tratamento farmacológico , Fibrose Pulmonar/patologia , Piridonas/farmacologia , Piridonas/uso terapêutico , Camundongos , Antifibróticos/farmacologia , Antifibróticos/uso terapêutico , Camundongos Endogâmicos C57BL , Masculino , RNA Mensageiro/metabolismo , RNA Mensageiro/genética
9.
BMC Pulm Med ; 24(1): 160, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38566026

RESUMO

BACKGROUND: The coronavirus disease 2019 (COVID-19) pandemic has had a significant impact on global health and economies, resulting in millions of infections and deaths. This retrospective cohort study aimed to investigate the effect of antifibrotic agents (nintedanib and pirfenidone) on 1-year mortality in COVID-19 patients with acute respiratory failure. METHODS: Data from 61 healthcare organizations in the TriNetX database were analyzed. Adult patients with COVID-19 and acute respiratory failure were included. Patients with a pre-existing diagnosis of idiopathic pulmonary fibrosis before their COVID-19 diagnosis were excluded. The study population was divided into an antifibrotic group and a control group. Propensity score matching was used to compare outcomes, and hazard ratios (HR) for 1-year mortality were calculated. RESULTS: The antifibrotic group exhibited a significantly lower 1-year mortality rate compared to the control group. The survival probability at the end of the study was 84.42% in the antifibrotic group and 69.87% in the control group. The Log-Rank test yielded a p-value of less than 0.001. The hazard ratio was 0.434 (95% CI: 0.264-0.712), indicating a significant reduction in 1-year mortality in the antifibrotic group. Subgroup analysis demonstrated significantly improved 1-year survival in patients receiving nintedanib treatment and during periods when the Wuhan strain was predominant. DISCUSSION: This study is the first to demonstrate a survival benefit of antifibrotic agents in COVID-19 patients with acute respiratory failure. Further research and clinical trials are needed to confirm the efficacy of these antifibrotic agents in the context of COVID-19 and acute respiratory failure.


Assuntos
COVID-19 , Fibrose Pulmonar Idiopática , Insuficiência Respiratória , Adulto , Humanos , Antifibróticos , Estudos Retrospectivos , Teste para COVID-19 , Fibrose Pulmonar Idiopática/complicações , Fibrose Pulmonar Idiopática/tratamento farmacológico , Fibrose Pulmonar Idiopática/diagnóstico , Insuficiência Respiratória/tratamento farmacológico , Piridonas/uso terapêutico , Resultado do Tratamento
10.
Ann Plast Surg ; 92(6S Suppl 4): S445-S452, 2024 Jun 01.
Artigo em Inglês | MEDLINE | ID: mdl-38857012

RESUMO

BACKGROUND: Management of vasospastic and vaso-occlusive disorders is a complex challenge, with current treatments showing varied success. Cannabinoids have demonstrated both vasodilatory and antifibrotic properties, which present potential mechanisms for therapeutic relief. No existing review examines these effects in peripheral circulation in relation to vasospastic and vaso-occlusive disorders. This study aims to investigate vasodilatory and antifibrotic properties of cannabinoids in peripheral vasculature for application in vasospastic and vaso-occlusive disorders affecting the hand. METHODS: A systematic search was conducted by 2 independent reviewers across PubMed, Cochrane, Ovid MEDLINE, and CINAHL to identify studies in accordance with the determined inclusion/exclusion criteria. Information regarding study design, medication, dosage, and hemodynamic or antifibrotic effects were extracted. Descriptive statistics were used to summarize study findings as appropriate. RESULTS: A total of 584 articles were identified, and 32 were selected for inclusion. Studies were grouped by effect type: hemodynamic (n = 17, 53%) and antifibrotic (n = 15, 47%). Vasodilatory effects including reduced perfusion pressure, increased functional capillary density, inhibition of vessel contraction, and increased blood flow were reported in 82% of studies. Antifibrotic effects including reduced dermal thickening, reduced collagen synthesis, and reduced fibroblast migration were reported in 100% of studies. CONCLUSION: Overall, cannabinoids were found to have vasodilatory and antifibrotic effects on peripheral circulation via both endothelium-dependent and independent mechanisms. Our review suggests the applicability of cannabis-based medicines for vasospastic and vaso-occlusive disorders affecting the hand (eg, Raynaud disease, Buerger disease). Future research should aim to assess the effectiveness of cannabis-based medicines for these conditions.


Assuntos
Canabinoides , Humanos , Canabinoides/farmacologia , Canabinoides/uso terapêutico , Vasodilatadores/uso terapêutico , Vasodilatadores/farmacologia , Antifibróticos/farmacologia , Antifibróticos/uso terapêutico , Fibrose/tratamento farmacológico
11.
JAMA ; 331(19): 1655-1665, 2024 05 21.
Artigo em Inglês | MEDLINE | ID: mdl-38648021

RESUMO

Importance: Interstitial lung disease (ILD) consists of a group of pulmonary disorders characterized by inflammation and/or fibrosis of the lung parenchyma associated with progressive dyspnea that frequently results in end-stage respiratory failure. In the US, ILD affects approximately 650 000 people and causes approximately 25 000 to 30 000 deaths per year. Observations: The most common forms of ILD are idiopathic pulmonary fibrosis (IPF), which accounts for approximately one-third of all cases of ILD, hypersensitivity pneumonitis, accounting for 15% of ILD cases, and connective tissue disease (CTD), accounting for 25% of ILD cases. ILD typically presents with dyspnea on exertion. Approximately 30% of patients with ILD report cough. Thoracic computed tomography is approximately 91% sensitive and 71% specific for diagnosing subtypes of ILDs such as IPF. Physiologic assessment provides important prognostic information. A 5% decline in forced vital capacity (FVC) over 12 months is associated with an approximately 2-fold increase in mortality compared with no change in FVC. Antifibrotic therapy with nintedanib or pirfenidone slows annual FVC decline by approximately 44% to 57% in individuals with IPF, scleroderma associated ILD, and in those with progressive pulmonary fibrosis of any cause. For connective tissue disease-associated ILD, immunomodulatory therapy, such as tocilizumab, rituximab, and mycophenolate mofetil, may slow decline or even improve FVC at 12-month follow-up. Structured exercise therapy reduces symptoms and improves 6-minute walk test distance in individuals with dyspnea. Oxygen reduces symptoms and improves quality of life in individuals with ILD who desaturate below 88% on a 6-minute walk test. Lung transplant may improve symptoms and resolve respiratory failure in patients with end-stage ILD. After lung transplant, patients with ILD have a median survival of 5.2 to 6.7 years compared with a median survival of less than 2 years in patients with advanced ILD who do not undergo lung transplant. Up to 85% of individuals with end-stage fibrotic ILD develop pulmonary hypertension. In these patients, treatment with inhaled treprostinil improves walking distance and respiratory symptoms. Conclusions and Relevance: Interstitial lung disease typically presents with dyspnea on exertion and can progress to respiratory failure. First-line therapy includes nintedanib or pirfenidone for IPF and mycophenolate mofetil for ILD due to connective tissue disease. Lung transplant should be considered for patients with advanced ILD. In patients with ILD, exercise training improves 6-minute walk test distance and quality of life.


Assuntos
Doenças Pulmonares Intersticiais , Humanos , Antifibróticos/uso terapêutico , Doenças do Tecido Conjuntivo/complicações , Doenças do Tecido Conjuntivo/diagnóstico , Doenças do Tecido Conjuntivo/terapia , Dispneia/etiologia , Fibrose Pulmonar Idiopática/complicações , Fibrose Pulmonar Idiopática/diagnóstico , Fibrose Pulmonar Idiopática/terapia , Indóis/uso terapêutico , Doenças Pulmonares Intersticiais/diagnóstico , Doenças Pulmonares Intersticiais/etiologia , Doenças Pulmonares Intersticiais/terapia , Transplante de Pulmão , Prognóstico , Piridonas/uso terapêutico , Medicamentos para o Sistema Respiratório/uso terapêutico , Estados Unidos , Capacidade Vital
12.
Drug Dev Res ; 85(4): e22217, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38845214

RESUMO

As a hybrid weapon, two novel series of pyrazoles, 16a-f and 17a-f, targeting both COX-2 and ACE-1-N-domain, were created and their anti-inflammatory, anti-hypertensive, and anti-fibrotic properties were evaluated. In vitro, 17b and 17f showed COX-2 selectivity (SI = 534.22 and 491.90, respectively) compared to celecoxib (SI = 326.66) and NF-κB (IC50 1.87 and 2.03 µM, respectively). 17b (IC50 0.078 µM) and 17 f (IC50 0.094 µM) inhibited ACE-1 comparable to perindopril (PER) (IC50 0.048 µM). In vivo, 17b decreased systolic blood pressure by 18.6%, 17b and 17f increased serum NO levels by 345.8%, and 183.2%, respectively, increased eNOS expression by 0.97 and 0.52 folds, respectively and reduced NF-κB-p65 and P38-MAPK expression by -0.62, -0.22, -0.53, and -0.24 folds, respectively compared to  l-NAME (-0.34, -0.45 folds decline in NF-κB-p65 and P38-MAPK, respectively). 17b reduced ANG-II expression which significantly reversed the cardiac histological changes induced by L-NAME.


Assuntos
Inibidores da Enzima Conversora de Angiotensina , Anti-Inflamatórios , Anti-Hipertensivos , Inibidores de Ciclo-Oxigenase 2 , Pirazóis , Tetrazóis , Pirazóis/farmacologia , Pirazóis/química , Animais , Anti-Hipertensivos/farmacologia , Anti-Hipertensivos/química , Anti-Hipertensivos/síntese química , Inibidores da Enzima Conversora de Angiotensina/farmacologia , Inibidores da Enzima Conversora de Angiotensina/química , Inibidores da Enzima Conversora de Angiotensina/síntese química , Tetrazóis/farmacologia , Tetrazóis/química , Anti-Inflamatórios/farmacologia , Anti-Inflamatórios/química , Anti-Inflamatórios/síntese química , Inibidores de Ciclo-Oxigenase 2/farmacologia , Inibidores de Ciclo-Oxigenase 2/síntese química , Inibidores de Ciclo-Oxigenase 2/química , Ratos , Desenho de Fármacos , Masculino , Antifibróticos/farmacologia , Antifibróticos/química , Ciclo-Oxigenase 2/metabolismo , Pressão Sanguínea/efeitos dos fármacos , Humanos , Peptidil Dipeptidase A/metabolismo
13.
Molecules ; 29(2)2024 Jan 13.
Artigo em Inglês | MEDLINE | ID: mdl-38257314

RESUMO

The leaves of C. tiglium have been comprehensively researched for their structurally novel bioactive natural compounds, especially those with anti-schistosomiasis liver fibrosis activity, because ethyl acetate extract, which can be extracted from the leaves of C. tiglium, has good anti-schistosomiasis liver fibrosis effects. One new tigliane-type diterpene, 20-acetyl-13-O-(2-metyl)butyryl-phorbol (1), and nine known (2-10) analogues were isolated from the leaves of C. tiglium. Their structures were elucidated on the basis of spectroscopic analysis and ECD analysis. All diterpenoids had a stronger insecticidal effect on schistosomula, and compounds 2, 4, and 10 had good anti-liver-fibrosis effects. Furthermore, compared with the model group, compound 2 significantly downregulated the protein and mRNA expression of COL-I, COL-III, α-SMA, and TGF-ß1 on TGF-ß1-induced liver fibrosis in LX-2 cells. Meanwhile, compound 2 also regulated the expression of TGF-ß/Smad-pathway-related proteins. The results suggest that diterpenoids from C. tiglium may serve as potential schistosomula-killing and anti-liver-fibrosis agents in the future.


Assuntos
Croton , Diterpenos , Fator de Crescimento Transformador beta1 , Diterpenos/farmacologia , Cirrose Hepática/tratamento farmacológico , Folhas de Planta , Antifibróticos
14.
J Pak Med Assoc ; 74(6): 1207-1209, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38949009

RESUMO

Idiopathic pulmonary fibrosis (IPF) is the most common progressive form of interstitial lung disease (ILD) that leads to gradual deterioration of lung function and ultimately death. Data from low- and middle-income countries (LMIC) on IPF is scarce. In this communication, we report the challenges encountered in managing IPF from Pakistan's largest tertiary care centre. A total of 108 patients with IPF were evaluated at the Aga Khan University Hospital in Karachi, Pakistan from January 2017 to March 2020. A significant concern was that most patients with IPF presented late during their disease. A bigger challenge encountered in clinical practice was the cost and nonavailability of antifibrotic therapy in the country until mid-2020. Successfully addressing these limitations, it is anticipated that better care will be available for the patients suffering from IPF in this part of the world.


Assuntos
Países em Desenvolvimento , Fibrose Pulmonar Idiopática , Humanos , Fibrose Pulmonar Idiopática/terapia , Fibrose Pulmonar Idiopática/diagnóstico , Paquistão , Feminino , Masculino , Pessoa de Meia-Idade , Idoso , Antifibróticos/uso terapêutico , Piridonas/uso terapêutico , Acessibilidade aos Serviços de Saúde , Transplante de Pulmão , Indóis
15.
Ther Umsch ; 81(1): 12-15, 2024 Feb.
Artigo em Alemão | MEDLINE | ID: mdl-38655828

RESUMO

INTRODUCTION: Progressive pulmonary Fibrosis Abstract: Cough and dyspnea on excertion are common and early symptoms of interstitial lung diseases (ILD). Thoracic imaging (particularly computed tomography) detects such lung structural alterations early in the disease course. Knowledge of these diseases and their management is necessary in the daily business. The term "progressive pulmonary fibrosis" subsumes a heterogene group of interstitial lung diseases with a similar course of progressive fibrosis. The management of these diseases should be discussed interdisciplinary, similar to the management of the Idiopathic pulmonary fibrosis (IPF). Antifibrotic drugs are new therapeutic options.


Assuntos
Progressão da Doença , Fibrose Pulmonar Idiopática , Fibrose Pulmonar , Humanos , Antifibróticos/uso terapêutico , Tosse/etiologia , Diagnóstico Diferencial , Dispneia/etiologia , Fibrose Pulmonar Idiopática/diagnóstico , Fibrose Pulmonar Idiopática/terapia , Fibrose Pulmonar Idiopática/diagnóstico por imagem , Comunicação Interdisciplinar , Colaboração Intersetorial , Pulmão/diagnóstico por imagem , Pulmão/patologia , Doenças Pulmonares Intersticiais/diagnóstico , Doenças Pulmonares Intersticiais/diagnóstico por imagem , Prognóstico , Fibrose Pulmonar/diagnóstico por imagem , Fibrose Pulmonar/diagnóstico , Tomografia Computadorizada por Raios X
16.
Vestn Oftalmol ; 140(2. Vyp. 2): 180-189, 2024.
Artigo em Russo | MEDLINE | ID: mdl-38739149

RESUMO

Chronic inflammatory process in the lacrimal drainage system is the main etiological factor leading to dacryostenosis and consequent obliteration - partial and total nasolacrimal duct obstruction. Prevention of this process is an urgent problem in dacryology. Currently, there is very little research on the development and use of conservative methods for treating dacryostenosis using anti-inflammatory, as well as anti-fibrotic drugs. In this regard, the main method of treating lacrimal drainage obstruction is dacryocystorhinostomy. However, the problem of recurrence after this operation has not been resolved. The causes of recurrence can be cicatricial healing of dacryocystorhinostomy ostium, canalicular obstruction, formation of granulations and synechiae in its area. Surgical methods of recurrence prevention are associated with possible complications, and there is conflicting data on the feasibility of their use. Based on this, the development of pharmacological methods for the prevention of fibrosis in dacryology is promising, among which the antitumor antibiotic Mitomycin C is the most studied. However, there are no specific scientifically substantiated recommendations for the use of this drug, and the data on its effectiveness vary. This has prompted researchers to look for and study alternative anti-fibrotic agents, such as antitumor drugs, glucocorticoids, hyaluronic acid, small molecule, biological, immunological and genetically engineered drugs, as well as nanoparticles. This review presents the current data on the efficacy and prospects of the use of these drugs in dacryology.


Assuntos
Dacriocistorinostomia , Fibrose , Obstrução dos Ductos Lacrimais , Humanos , Dacriocistorinostomia/métodos , Dacriocistorinostomia/efeitos adversos , Fibrose/prevenção & controle , Obstrução dos Ductos Lacrimais/etiologia , Obstrução dos Ductos Lacrimais/prevenção & controle , Obstrução dos Ductos Lacrimais/terapia , Complicações Pós-Operatórias/prevenção & controle , Complicações Pós-Operatórias/etiologia , Antifibróticos
17.
Hepatology ; 75(2): 473-488, 2022 02.
Artigo em Inglês | MEDLINE | ID: mdl-34923653

RESUMO

Steady progress over four decades toward understanding the pathogenesis and clinical consequences of hepatic fibrosis has led to the expectation of effective antifibrotic drugs, yet none has been approved. Thus, an assessment of the field is timely, to clarify priorities and accelerate progress. Here, we highlight the successes to date but, more importantly, identify gaps and unmet needs, both experimentally and clinically. These include the need to better define cell-cell interactions and etiology-specific elements of fibrogenesis and their link to disease-specific drivers of portal hypertension. Success in treating viral hepatitis has revealed the remarkable capacity of the liver to degrade scar in reversing fibrosis, yet we know little of the mechanisms underlying this response. Thus, there is an exigent need to clarify the cellular and molecular mechanisms of fibrosis regression in order for therapeutics to mimic the liver's endogenous capacity. Better refined and more predictive in vitro and animal models will hasten drug development. From a clinical perspective, current diagnostics are improving but not always biologically plausible or sufficiently accurate to supplant biopsy. More urgently, digital pathology methods that leverage machine learning and artificial intelligence must be validated in order to capture more prognostic information from liver biopsies and better quantify the response to therapies. For more refined treatment of NASH, orthogonal approaches that integrate genetic, clinical, and pathological data sets may yield treatments for specific subphenotypes of the disease. Collectively, these and other advances will strengthen and streamline clinical trials and better link histologic responses to clinical outcomes.


Assuntos
Antifibróticos , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/patologia , Fígado/patologia , Animais , Pesquisa Biomédica , Ensaios Clínicos como Assunto , Desenvolvimento de Medicamentos , Fibrose , Humanos , Fígado/diagnóstico por imagem , Cirrose Hepática/diagnóstico por imagem , Cirrose Hepática/etiologia , Avaliação das Necessidades
19.
Pharmacol Res ; 187: 106577, 2023 01.
Artigo em Inglês | MEDLINE | ID: mdl-36435270

RESUMO

Idiopathic pulmonary fibrosis (IPF) is a fatal disease with high mortality and limited effective therapy. Herein, we reported that fluvoxamine, a selective serotonin reuptake inhibitor (SSRI), used in depression and anxiety treatment, also exhibited therapeutic activities in IPF. Fluvoxamine inhibited cyclic GMP-AMP synthase (cGAS) and stimulator of interferon genes (STING), restrained the activation of their downstream targets, including PERK/ eIF2α/ c-Myc/ miR-9-5p/ TBPL1 and TBK1/ YAP/ JNK1/2/ Bnip3/ CaMKII/ cofilin signaling, thus attenuated the activation and migration of fibroblasts upon TGF-ß1 challenge. Fluvoxamine dose-dependently improved pulmonary function, decreased the expression of inflammatory factors, reduced excessive production of extracellular matrix, and thus alleviated bleomycin (BLM)-induced lung fibrosis in mice. Moreover, fluvoxamine at a dose of 10 mg/ kg showed similar efficacy as pirfenidone (PFD) at a dose of 30 mg/kg in a mice model of lung fibrosis. In summary, our results suggest that fluvoxamine is an effective anti-fibrotic agent for IPF.


Assuntos
Antifibróticos , Fluvoxamina , Fibrose Pulmonar Idiopática , Animais , Camundongos , Bleomicina , Fibroblastos/metabolismo , Fluvoxamina/uso terapêutico , Fibrose Pulmonar Idiopática/tratamento farmacológico , Pulmão/efeitos dos fármacos , Nucleotidiltransferases , Fator de Crescimento Transformador beta1/metabolismo , Antifibróticos/uso terapêutico
20.
Bioorg Med Chem Lett ; 88: 129290, 2023 05 15.
Artigo em Inglês | MEDLINE | ID: mdl-37080476

RESUMO

A novel benzene sulfonamide compound named IMB16-4 exhibits excellent anti-hepatic fibrosis activity in a recent study. To develop potential anti-hepatic fibrosis agents, a series of benzene sulfonamide derivatives were designed and synthesized based on the scaffold of the lead compound IMB16-4. As it turned out, most of the derivatives displayed potential anti-hepatic fibrosis activity, among which, compounds 11a, 11b, 11d, 13a, 36b, and 47b exhibited inhibition rates of 42.3%, 48.7%, 42.4%, 40.0%, 39.4%, and 49.3%, respectively, which were equivalent to the control IMB16-4 with an inhibition rate of 35.9%, Costunolide with an inhibition rate of 45.4%, and much more potent than that of Epigallocatechin gallate (EGCG) with an inhibition rate of 25.3%. Especially, compounds 46a, 46b, and 46c exhibited excellent anti-hepatic fibrosis activity with inhibition rates of 61.7%, 54.8%, and 60.7%, which were almost 1.5-fold inhibition rates of IMB16-4. In addition, compounds 46a, 46b, and 46c exhibited remarkable inhibitory activity in the gene expression of COL1A1, MMP-2, and the protein expression of COL1A1, FN, α-SMA, and TIMP-1 by inhibiting the JAK1-STAT1/3 pathway. These findings furnished valuable inspiration for the further development of anti-hepatic fibrosis agents.


Assuntos
Antifibróticos , Benzeno , Humanos , Derivados de Benzeno , Cirrose Hepática/tratamento farmacológico , Cirrose Hepática/metabolismo , Sulfonamidas/farmacologia , Relação Estrutura-Atividade
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