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1.
Int J Mol Sci ; 25(7)2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38612744

RESUMO

The mission of this review is to identify immune-damaging participants involved in antiviral immunoinflammatory lesions. We argue these could be targeted and their activity changed selectively by maneuvers that, at the same time, may not diminish the impact of components that help resolve lesions. Ideally, we need to identify therapeutic approaches that can reverse ongoing lesions that lack unwanted side effects and are affordable to use. By understanding the delicate balance between immune responses that cause tissue damage and those that aid in resolution, novel strategies can be developed to target detrimental immune components while preserving the beneficial ones. Some strategies involve rebalancing the participation of immune components using various approaches, such as removing or blocking proinflammatory T cell products, expanding regulatory cells, restoring lost protective cell function, using monoclonal antibodies (moAb) to counteract inhibitory molecules, and exploiting metabolic differences between inflammatory and immuno-protective responses. These strategies can help reverse ongoing viral infections. We explain various approaches, from model studies and some clinical evidence, that achieve innate and adaptive immune rebalancing, offering insights into potential applications for controlling chronic viral-induced lesions.


Assuntos
Anticorpos Monoclonais , Pirimetamina , Humanos , Anticorpos Monoclonais/uso terapêutico , Sulfadiazina
2.
Zhonghua Xue Ye Xue Za Zhi ; 45(2): 115-120, 2024 Feb 14.
Artigo em Chinês | MEDLINE | ID: mdl-38604786

RESUMO

Objectives: To investigate the efficacy of short-term substitution of recombinant humanized anti-CD25 monoclonal antibody (Basiliximab) as acute GVHD (aGVHD) prophylaxis in calcineurin inhibitors (CNI) intolerant patients following allogeneic hematopoietic stem cell transplantation (allo-HSCT) . Methods: This study included 17 patients with refractory malignant hematological disorders who underwent salvage allo-HSCT at the Bone Marrow Transplantation Department of Shanghai Zhaxin Traditional Chinese and Western Medicine Hospital from August 2021 to August 2022 and were treated with Baliximab to prevent aGVHD due to severe adverse reactions to CNI. There were seven men and ten women, with a median age of 43 years (18-67). Following the discontinuation of CNI, Basiliximab was administered at a dose of 1 mg/kg once weekly until CNI or mTOR inhibitors were resumed. Results: Basiliximab was started at an average of 5 (1-32) days after HSCT. The median duration of substitution was 20 (7-120) days. All had neutrophil engraftment within a median of 12 (10-17) days. Thirteen patients had platelet engraftment after a median of 13 (11-20) days. Four patients did not develop stable platelet engraftment. Eight patients (47.1% ) developed Grade Ⅱ-Ⅳ aGVHD, while four (23.6% ) developed Grade Ⅲ/Ⅳ aGVHD. Only one patient died from aGVHD. Before the end of the followup period, seven of 17 patients died. The longest followup period of the survivors was 347 days, and the median survival rate was not met. The overall survival (OS) rate at six months was 62.6%. Among the 17 patients, 13 (76.4% ) experienced cytomegalovirus reactivation, 7 (41.2% ) experienced EB virus activation, and no cytomegalovirus disease was observed. Conclusions: When CNI intolerance occurs during allo-HSCT, short-term replacement with Baliximab can be used as an alternative to prevent aGVHD.


Assuntos
Doença Enxerto-Hospedeiro , Transplante de Células-Tronco Hematopoéticas , Masculino , Humanos , Feminino , Adolescente , Adulto Jovem , Adulto , Pessoa de Meia-Idade , Idoso , Basiliximab/uso terapêutico , Inibidores de Calcineurina/uso terapêutico , China , Transplante de Células-Tronco Hematopoéticas/efeitos adversos , Anticorpos Monoclonais/uso terapêutico , Doença Enxerto-Hospedeiro/prevenção & controle , Doença Enxerto-Hospedeiro/tratamento farmacológico , Estudos Retrospectivos
3.
Cells ; 13(7)2024 Mar 25.
Artigo em Inglês | MEDLINE | ID: mdl-38607011

RESUMO

Calcitonin gene-related peptide (CGRP) and nitric oxide (NO) have been recognized as important mediators in migraine but their mechanisms of action and interaction have not been fully elucidated. Monoclonal anti-CGRP antibodies like fremanezumab are successful preventives of frequent migraine and can be used to study CGRP actions in preclinical experiments. Fremanezumab (30 mg/kg) or an isotype control monoclonal antibody was subcutaneously injected to Wistar rats of both sexes. One to several days later, glyceroltrinitrate (GTN, 5 mg/kg) mimicking nitric oxide (NO) was intraperitoneally injected, either once or for three consecutive days. The trigeminal ganglia were removed to determine the concentration of CGRP using an enzyme-linked immunosorbent assay (ELISA). In one series of experiments, the animals were trained to reach an attractive sugar solution, the access to which could be limited by mechanical or thermal barriers. Using a semi-automated registration system, the frequency of approaches to the source, the residence time at the source, and the consumed solution were registered. The results were compared with previous data of rats not treated with GTN. The CGRP concentration in the trigeminal ganglia was generally higher in male rats and tended to be increased in animals treated once with GTN, whereas the CGRP concentration decreased after repetitive GTN treatment. No significant difference in CGRP concentration was observed between animals having received fremanezumab or the control antibody. Animals treated with GTN generally spent less time at the source and consumed less sugar solution. Without barriers, there was no significant difference between animals having received fremanezumab or the control antibody. Under mechanical barrier conditions, all behavioral parameters tended to be reduced but animals that had received fremanezumab tended to be more active, partly compensating for the depressive effect of GTN. In conclusion, GTN treatment seems to increase the production of CGRP in the trigeminal ganglion independently of the antibodies applied, but repetitive GTN administration may deplete CGRP stores. GTN treatment generally tends to suppress the animals' activity and increase facial sensitivity, which is partly compensated by fremanezumab through reduced CGRP signaling. If CGRP and NO signaling share the same pathway in sensitizing trigeminal afferents, GTN and NO may act downstream of CGRP to increase facial sensitivity.


Assuntos
Peptídeo Relacionado com Gene de Calcitonina , Transtornos de Enxaqueca , Feminino , Ratos , Masculino , Animais , Peptídeo Relacionado com Gene de Calcitonina/metabolismo , Glicerol , Ratos Wistar , Roedores/metabolismo , Óxido Nítrico , Nociceptividade , Nitroglicerina/farmacologia , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/uso terapêutico , Transtornos de Enxaqueca/tratamento farmacológico , Transtornos de Enxaqueca/metabolismo , Açúcares
4.
Expert Rev Neurother ; 24(5): 477-485, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38557226

RESUMO

INTRODUCTION: Calcitonin Gene-Related Peptide (CGRP)-targeted therapy has revolutionized migraine treatment since its first approval in 2018. CGRP-targeted therapy includes monoclonal antibodies (mAbs) and gepants, which modulate trigeminal nociceptive and inflammatory responses, alleviating pain sensitization involved in migraine pathogenesis. CGRP-targeted therapy is effective not only for migraine but also for other chronic headache disorders that share the CGRP pathway. AREAS COVERED: The authors review the latest developments and evidence for CGRP-targeted therapy for episodic migraine and chronic migraine. In addition, the authors discuss the emerging evidence on response prediction, menstrual migraine, vestibular migraine, idiopathic intracranial hypertension, post-traumatic headache, and the relationship between selected migraine comorbidities and CGRP. EXPERT OPINION: Since the launch of CGRP-targeted therapy, many practical issues have been raised. Generally, it's safe to combine CGRP-targeted mAbs and gepants; this is an excellent option for patients with partial response. When considering stopping CGRP-targeted therapy, although a disease-modifying effect is likely, the optimal time for discontinuation remains unknown. Finally, beyond migraine, CGRP-targeted therapy may be used for other chronic pain disorders and psychological comorbidities.


Assuntos
Dor Crônica , Transtornos de Enxaqueca , Humanos , Peptídeo Relacionado com Gene de Calcitonina , Receptores de Peptídeo Relacionado com o Gene de Calcitonina , Antagonistas do Receptor do Peptídeo Relacionado ao Gene de Calcitonina , Anticorpos Monoclonais/uso terapêutico
6.
Nat Commun ; 15(1): 2839, 2024 Apr 02.
Artigo em Inglês | MEDLINE | ID: mdl-38565563

RESUMO

Dupilumab, an IL4R-blocking antibody, has shown clinical efficacy for atopic dermatitis (AD) treatment. In addition to conjunctivitis/blepharitis, the de novo appearance of head/neck dermatitis is now recognized as a distinct side effect, occurring in up to 10% of patients. Histopathological features distinct from AD suggest a drug effect, but exact underlying mechanisms remain unknown. We profiled punch biopsies from dupilumab-associated head and neck dermatitis (DAHND) by using single-cell RNA sequencing and compared data with untreated AD and healthy control skin. We show that dupilumab treatment was accompanied by normalization of IL-4/IL-13 downstream activity markers such as CCL13, CCL17, CCL18 and CCL26. By contrast, we found strong increases in type 22-associated markers (IL22, AHR) especially in oligoclonally expanded T cells, accompanied by enhanced keratinocyte activation and IL-22 receptor upregulation. Taken together, we demonstrate that dupilumab effectively dampens conventional type 2 inflammation in DAHND lesions, with concomitant hyperactivation of IL22-associated responses.


Assuntos
Anticorpos Monoclonais , Dermatite Atópica , Humanos , Anticorpos Monoclonais/uso terapêutico , Linfócitos T/patologia , Anticorpos Monoclonais Humanizados/efeitos adversos , Dermatite Atópica/patologia , Interleucina-13 , Resultado do Tratamento , Índice de Gravidade de Doença
7.
Rev Med Liege ; 79(4): 255-259, 2024 Apr.
Artigo em Francês | MEDLINE | ID: mdl-38602214

RESUMO

Severe asthma often features a T2 high profile regulated by cytokines such as interleukins IL-4, IL-5 and IL-13. Dupilumab (Dupixent®) is humanized monoclonal antibody directed against the α subunit of the receptor for IL-4 and IL-13. Here we summarise the immunogical background of severe asthma which supports the use of dupilumab and the pivotal randomised controlled trials which have established the efficacy of dupilumab in treating people with severe asthma. Dupilumab reduces the exacerbation rate, has corticosteroids sparing effect, provides sustained improvement in expiratory flow rates and improved asthma control and quality of life with a reassuring safety profile. Dupilumab reduces the levels of FeNO values and of serum IgE but not those of circulating eosinophils. We also report on a few real life data with dupilumab supporting its clinical effectiveness.


L'asthme sévère est souvent caractérisé par un profil immunologique dit «T2 high¼ régulé par des cytokines telles que les interleukines IL-4, IL-5 et IL-13. Le dupilumab (Dupixent®) est un anticorps monoclonal humanisé dirigé contre la sous-unité α du récepteur à l'IL-4 et à l'IL-13. Nous présentons ici les bases immunologiques qui annoncent son efficacité dans le traitement de l'asthme sévère et les grandes études contrôlées qui ont validé son efficacité. Le dupilumab réduit la fréquence des exacerbations, permet une épargne en corticoïdes systémiques, améliore les débits expiratoires, le contrôle de la maladie et la qualité de vie des personnes asthmatiques, sans donner lieu à des effets secondaires notables. Il réduit le taux de FeNO et des IgE sériques, mais pas celui des éosinophiles circulants. Nous donnons également un aperçu de quelques données obtenues en vie réelle pour souligner son utilité en clinique.


Assuntos
Antiasmáticos , Anticorpos Monoclonais Humanizados , Asma , Humanos , Interleucina-4/uso terapêutico , Anticorpos Monoclonais/uso terapêutico , Interleucina-13/uso terapêutico , Qualidade de Vida , Asma/tratamento farmacológico , Antiasmáticos/farmacologia , Antiasmáticos/uso terapêutico
8.
Hematol Oncol ; 42(3): e3270, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38590272

RESUMO

Light chain amyloidosis is a rare disease caused by clonal plasma cells in the bone marrow generating an excessive amount of immunoglobulin light chains. These chains misfold and produce insoluble fibrils that deposit in various organs, including the heart, kidneys, liver, nervous system, and digestive tract. Life expectancy and symptoms during the course of the disease vary depending on which and how many organs are affected. Targeted plasma cell therapy has significantly advanced the clinical management of amyloidosis, with ongoing progress. However, current clinical studies are investigating innovative targets, drug combinations and treatment strategies to improve therapeutic outcomes by minimizing adverse effects and refining patient prognosis in these challenging hematological conditions. In this paper, we review the state of the art regarding the use of anti-amyloid antibodies, as a revolutionary and innovative approach in the current scenario of amyloid treatment.


Assuntos
Amiloidose , Amiloidose de Cadeia Leve de Imunoglobulina , Humanos , Amiloidose de Cadeia Leve de Imunoglobulina/tratamento farmacológico , Anticorpos Monoclonais/uso terapêutico , Amiloidose/complicações , Amiloidose/diagnóstico , Amiloidose/terapia , Cadeias Leves de Imunoglobulina , Plasmócitos
9.
BMJ Open ; 14(4): e077090, 2024 Apr 05.
Artigo em Inglês | MEDLINE | ID: mdl-38582540

RESUMO

OBJECTIVE: The CAPSTONE-1 trial demonstrated that adebrelimab-based immunotherapy yielded a favourable survival benefit compared with chemotherapy for patients with extensive-stage small cell lung cancer (ES-SCLC). This study aims to evaluate the cost-effectiveness of this immunotherapy in the treatment of ES-SCLC from a healthcare system perspective in China. DESIGN: The TreeAge Pro software was used to establish a three-state partitioned survival model. Survival data came from the CAPSTONE-1 trial (NCT03711305), and only direct medical costs were included. Utility values were obtained from the published literature. Sensitivity analysis was performed to explore the robustness of the model. The cost-effectiveness of immunotherapy was investigated through scenario and exploratory analyses in various settings. OUTCOME MEASURES: Total costs, incremental costs, life years, quality-adjusted life-years (QALYs), incremental QALYs and incremental cost-effectiveness ratio (ICER). RESULTS: The basic analysis revealed that the adebrelimab group achieved a total of 1.1 QALYs at a cost of US$65 385, while the placebo group attained 0.78 QALYs at a cost of US$12 741. ICER was US$163 893/QALY. Sensitivity analysis confirmed that the model was robust. Results from scenario and exploratory analyses indicated that the combination of adebrelimab and chemotherapy did not demonstrate cost-effectiveness in any scenario. CONCLUSIONS: From the perspective of the Chinese healthcare system, adebrelimab in combination with chemotherapy for the treatment of ES-SCLC was not economical compared with chemotherapy.


Assuntos
Neoplasias Pulmonares , Carcinoma de Pequenas Células do Pulmão , Humanos , Carcinoma de Pequenas Células do Pulmão/tratamento farmacológico , Análise de Custo-Efetividade , Análise Custo-Benefício , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico , Anticorpos Monoclonais/uso terapêutico
10.
HLA ; 103(4): e15458, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38597238

RESUMO

We report data on six kidney or heart recipients who were administered daratumumab to treat or prevent antibody-mediated rejection (ABMR). To date, data are scarce concerning the use of daratumumab in solid organ transplantation and most reports show a decrease in donor-specific antigen (DSA) levels and an improvement in ABMR using a multiple myeloma daratumumab administration scheme, that is, with sequential systematic administration. Here, we report on the efficacy of daratumumab 1/ in reducing the histological signs of ABMR, 2/ in reducing the ability of DSA to bind to donor cells in vitro through negativation of flow cytometry crossmatching, 3/ in preferentially being directed towards antibodies sharing epitopes, suggesting that daratumumab may specifically target activated plasma cells, 4/ and when administered as a single dose. This last point suggests, for the first time, that, as for rituximab in auto-immune diseases, the scheme for daratumumab administration could be different for targeting DSA-producing plasma cells than for tumour cells.


Assuntos
Anticorpos Monoclonais , Transplante de Rim , Humanos , Alelos , Anticorpos Monoclonais/uso terapêutico , Rim , Rejeição de Enxerto , Isoanticorpos , Transplantados , Antígenos HLA
11.
Neonatal Netw ; 43(2): 105-115, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38599778

RESUMO

Respiratory syncytial virus (RSV) is the leading cause of hospitalization in infancy in the United States. Nearly all infants are infected by 2 years of age, with bronchiolitis requiring hospitalization often occurring in previously healthy children and long-term consequences of severe disease including delayed speech development and asthma. Incomplete passage of maternal immunity and a high degree of genetic variability within the virus contribute to morbidity and have also prevented successful neonatal vaccine development. Monoclonal antibodies reduce the risk of hospitalization from severe RSV disease, with palivizumab protecting high-risk newborns with comorbidities including chronic lung disease and congenital heart disease. Unfortunately, palivizumab is costly and requires monthly administration of up to five doses during the RSV season for optimal protection.Rapid advances in the past two decades have facilitated the identification of antibodies with broad neutralizing activity and allowed manipulation of their genetic code to extend half-life. These advances have culminated with nirsevimab, a monoclonal antibody targeting the Ø antigenic site on the RSV prefusion protein and protecting infants from severe disease for an entire 5-month season with a single dose. Four landmark randomized controlled trials, the first published in July 2020, have documented the efficacy and safety of nirsevimab in healthy late-preterm and term infants, healthy preterm infants, and high-risk preterm infants and those with congenital heart disease. Nirsevimab reduces the risk of RSV disease requiring medical attention (number needed to treat [NNT] 14-24) and hospitalization (NNT 33-63) with rare mild rash and injection site reactions. Consequently, the Centers for Disease Control and Prevention has recently recommended nirsevimab for all infants younger than 8 months of age entering or born during the RSV season and high-risk infants 8-19 months of age entering their second season. Implementing this novel therapy in this large population will require close multidisciplinary collaboration. Equitable distribution through minimizing barriers and maximizing uptake must be prioritized.


Assuntos
Anticorpos Monoclonais Humanizados , Cardiopatias Congênitas , Infecções por Vírus Respiratório Sincicial , Lactente , Criança , Recém-Nascido , Humanos , Estados Unidos , Palivizumab/uso terapêutico , Antivirais/uso terapêutico , Recém-Nascido Prematuro , Anticorpos Monoclonais/uso terapêutico , Infecções por Vírus Respiratório Sincicial/tratamento farmacológico , Infecções por Vírus Respiratório Sincicial/prevenção & controle
12.
J Dermatolog Treat ; 35(1): 2342383, 2024 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-38632977

RESUMO

In the KEEPsAKE 1 (NCT03675308) and KEEPsAKE 2 (NCT03671148) phase 3 trials, risankizumab demonstrated greater efficacy compared with placebo in patients with active psoriatic arthritis (PsA). This post hoc integrated analysis evaluated achieving the following efficacy outcomes at weeks 24 and 52 by baseline demographics and clinical characteristics: ≥20%/50%/70% improvement in American College of Rheumatology response criteria (ACR20/50/70), ≥90% improvement in Psoriasis Area and Severity Index, minimal disease activity status, Low Disease Activity status (Disease Activity in Psoriatic Arthritis), and minimal clinically important difference in pain. Baseline demographics and clinical characteristics were similar between risankizumab (n = 707) and placebo (n = 700) groups. Numerically higher ACR20 response rates at week 24 (primary endpoint) were observed among the risankizumab (46.3%-60.1%) vs. placebo (15.5%-36.2%) cohorts, regardless of subgroups. At week 52, consistent proportions of patients randomized to risankizumab achieved ACR20 (48.6%-75.8%) while those initially randomized to placebo and switched to risankizumab experienced an improvement from week 24 (43.7%-63.9%), regardless of subgroups. Similar trends were observed for other efficacy measures assessing rigorous skin response criteria, composite measures of overall disease activity, and PsA-related symptoms. Risankizumab treatment was efficacious among patients with varying demographic and psoriatic disease characteristics through 52 weeks.


Assuntos
Anticorpos Monoclonais , Artrite Psoriásica , Humanos , Anticorpos Monoclonais/uso terapêutico , Artrite Psoriásica/tratamento farmacológico , Resultado do Tratamento
13.
Blood Cancer J ; 14(1): 67, 2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38637557

RESUMO

Acute myeloid leukemia (AML) remains a therapeutic challenge despite recent therapeutic advances. Although monoclonal antibodies (mAbs) engaging natural killer (NK) cells via antibody-dependent cellular cytotoxicity (ADCC) hold promise in cancer therapy, almost none have received clinical approval for AML, so far. Recently, CD276 (B7-H3) has emerged as a promising target for AML immunotherapy, due to its high expression on leukemic blasts of AML patients. Here, we present the preclinical development of the Fc-optimized CD276 mAb 8H8_SDIE with enhanced CD16 affinity. We demonstrate that 8H8_SDIE specifically binds to CD276 on AML cell lines and primary AML cells and induces pronounced NK cell activation and degranulation as measured by CD69, CD25, and CD107a. Secretion of IFNγ, TNF, granzyme B, granulysin, and perforin, which mediate NK cell effector functions, was induced by 8H8_SDIE. A pronounced target cell-restricted lysis of AML cell lines and primary AML cells was observed in cytotoxicity assays using 8H8_SDIE. Finally, xenograft models with 8H8_SDIE did not cause off-target immune activation and effectively inhibited leukemia growth in vivo. We here present a novel attractive immunotherapeutic compound that potently induces anti-leukemic NK cell reactivity in vitro and in vivo as treatment option for AML.


Assuntos
Células Matadoras Naturais , Leucemia Mieloide Aguda , Humanos , Leucemia Mieloide Aguda/tratamento farmacológico , Citotoxicidade Celular Dependente de Anticorpos , Anticorpos Monoclonais/farmacologia , Anticorpos Monoclonais/uso terapêutico , Antígenos B7/metabolismo , Antígenos B7/farmacologia
14.
Front Immunol ; 15: 1363102, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38638442

RESUMO

CD20 located predominantly on the B cells plays a crucial role in their development, differentiation, and activation, and serves as a key therapeutic target for the treatment of B-cell malignancies. The breakthrough of monoclonal antibodies directed against CD20, notably exemplified by rituximab, revolutionized the prognosis of B-cell malignancies. Rituximab, approved across various hematological malignancies, marked a paradigm shift in cancer treatment. In the current landscape, immunotherapies targeting CD20 continue to evolve rapidly. Beyond traditional mAbs, advancements include antibody-drug conjugates (ADCs), bispecific antibodies (BsAbs), and chimeric antigen receptor-modified (CAR) T cells. ADCs combine the precision of antibodies with the cytotoxic potential of drugs, presenting a promising avenue for enhanced therapeutic efficacy. BsAbs, particularly CD20xCD3 constructs, redirect cytotoxic T cells to eliminate cancer cells, thereby enhancing both precision and potency in their therapeutic action. CAR-T cells stand as a promising strategy for combatting hematological malignancies, representing one of the truly personalized therapeutic interventions. Many new therapies are currently being evaluated in clinical trials. This review serves as a comprehensive summary of CD20-targeted therapies, highlighting the progress and challenges that persist. Despite significant advancements, adverse events associated with these therapies and the development of resistance remain critical issues. Understanding and mitigating these challenges is paramount for the continued success of CD20-targeted immunotherapies.


Assuntos
Anticorpos Biespecíficos , Neoplasias Hematológicas , Imunoconjugados , Receptores de Antígenos Quiméricos , Humanos , Anticorpos Monoclonais/uso terapêutico , Rituximab , Receptores de Antígenos Quiméricos/genética , Imunoterapia , Anticorpos Biespecíficos/uso terapêutico
15.
Cell Chem Biol ; 31(4): 632-657, 2024 Apr 18.
Artigo em Inglês | MEDLINE | ID: mdl-38640902

RESUMO

Over four years have passed since the beginning of the COVID-19 pandemic. The scientific response has been rapid and effective, with many therapeutic monoclonal antibodies and small molecules developed for clinical use. However, given the ability for viruses to become resistant to antivirals, it is perhaps no surprise that the field has identified resistance to nearly all of these compounds. Here, we provide a comprehensive review of the resistance profile for each of these therapeutics. We hope that this resource provides an atlas for mutations to be aware of for each agent, particularly as a springboard for considerations for the next generation of antivirals. Finally, we discuss the outlook and thoughts for moving forward in how we continue to manage this, and the next, pandemic.


Assuntos
COVID-19 , SARS-CoV-2 , Humanos , Anticorpos Monoclonais/uso terapêutico , Anticorpos Monoclonais/farmacologia , Pandemias , Antivirais/farmacologia , Antivirais/uso terapêutico
16.
BMC Pharmacol Toxicol ; 25(1): 29, 2024 Apr 19.
Artigo em Inglês | MEDLINE | ID: mdl-38641625

RESUMO

BACKGROUND: Monoclonal antibody therapy for Covid-19 springs up all over the world and get some efficiency. This research aims to explore the treating effect of BRII-196(Ambavirumab) plus BRII-198(Lomisivir) on Covid-19. METHODS: In this retrospective cohort research, patients received standard care or plus BRII-196 /BRII-198 monoclonal antibodies. General comparison of clinical indexes and prognosis between Antibody Group and Control Group was made. Further, according to the antibody using time and patients' condition, subgroups included Early antibody group, Late antibody group, Mild Antibody Group, Mild Control Group, Severe Antibody Group and Severe Control Group. RESULTS: Length of stay(LOS) and interval of Covid-19 nucleic acid from positive to negative of Antibody Group were 12.0(IQR 9.0-15.0) and 14.0(IQR 10.0-16.0) days, less than those(13.0 (IQR 11.0-18.0) and 15.0 (IQR 12.8-17.0) days) of Control Group(p = 0.004, p = 0.004). LOS(median 10days) of Early Antibody Group was the shortest, significantly shorter than that of Control Group (median 13days)(p < 0.001). Interval(median 12days) of Covid-19 nucleic acid from positive to negative of Early Antibody Group also was significantly shorter than that of Control Group(median 15days) and Late Antibody Group(median 14days)(p = 0.001, p = 0.042). LOS(median 12days) and interval(median 13days) of Covid-19 nucleic acid from positive to negative of Mild Antibody Group was shorter than that of Mild Control Group(median 13days; median 14.5days)(p = 0.018, p = 0.033). CONCLUSION: The neutralizing antibody therapy, BRII-196 plus BRII-198 could shorten LOS and interval of Covid-19 nucleic acid from positive to negative. However, it didn't show efficacy for improving clinical outcomes among severe or critical cases.


Assuntos
Anticorpos Monoclonais Humanizados , COVID-19 , Ácidos Nucleicos , Humanos , SARS-CoV-2 , Estudos Retrospectivos , Anticorpos Neutralizantes/uso terapêutico , Anticorpos Monoclonais/uso terapêutico
17.
Clin Transplant ; 38(4): e15307, 2024 04.
Artigo em Inglês | MEDLINE | ID: mdl-38567897

RESUMO

BACKGROUND: The use of induction immunosuppression for heart transplantation (HT) is debated given the uncertain benefit and potential risks of infection and malignancy. METHODS: This is a retrospective single-center analysis of 475 consecutive HT recipients from 2003 to 2020 grouped by use of induction with basiliximab group (BG) and the no basiliximab group (NBG). Subgroup analysis by era compared pre-2016 standard-basiliximab (BX) induction and 2016-2020 with selective-BX use as part of a calcineurin-inhibitor-sparing regimen. RESULTS: When adjusted for confounders (sex, age, PRA, eGFR), the BG was less likely to have acute cellular rejection (ACR) (OR.42, p < .001), but had more antibody mediated rejection (AMR) (OR 11.7, p < .001) and more cardiac allograft vasculopathy (CAV) (OR 3.8, p = .04). There was no difference between BG and NBG in the incidence of malignancies or infections. When stratified by era (pre-2016 vs. 2016-2020), ACR remained less common in the BG than the NBG (36% vs. 50%, p = .045) groups, while AMR remained more common (9.7 vs. 0% p = .005). There was no significant difference in conditional survival comparing pre-and post-2016 NBG (HR 2.20 (95% CI.75-6.43); however, both pre-2016 BG and post-2016 BG have significantly higher mortality (HR 2.37 [95% CI 1.02-5.50) and HR 2.69 (95% CI 1.08-6.71), p = .045 and.03, respectively]. CONCLUSION: Basiliximab reduces the incidence of ACR but increases the risk of AMR, CAV, and may be associated with increased mortality. Mechanistic studies are needed to describe a potential T-cell-escape mechanism with enhanced humoral immunity.


Assuntos
Transplante de Coração , Neoplasias , Humanos , Basiliximab/uso terapêutico , Imunossupressores/uso terapêutico , Imunossupressores/farmacologia , Anticorpos Monoclonais/uso terapêutico , Estudos Retrospectivos , Rejeição de Enxerto/tratamento farmacológico , Rejeição de Enxerto/etiologia , Transplante de Coração/efeitos adversos , Proteínas Recombinantes de Fusão/uso terapêutico
18.
Mol Cancer ; 23(1): 77, 2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627681

RESUMO

Emerging tumor immunotherapy methods encompass bispecific antibodies (BSABs), immune checkpoint inhibitors (ICIs), and adoptive cell immunotherapy. BSABs belong to the antibody family that can specifically recognize two different antigens or epitopes on the same antigen. These antibodies demonstrate superior clinical efficacy than monoclonal antibodies, indicating their role as a promising tumor immunotherapy option. Immune checkpoints are also important in tumor immunotherapy. Programmed cell death protein-1 (PD-1) is a widely acknowledged immune checkpoint target with effective anti-tumor activity. PD-1 inhibitors have demonstrated notable therapeutic efficacy in treating hematological and solid tumors; however, more than 50% of patients undergoing this treatment exhibit a poor response. However, ICI-based combination therapies (ICI combination therapies) have been demonstrated to synergistically increase anti-tumor effects and immune response rates. In this review, we compare the clinical efficacy and side effects of BSABs and ICI combination therapies in real-world tumor immunotherapy, aiming to provide evidence-based approaches for clinical research and personalized tumor diagnosis and treatment.


Assuntos
Anticorpos Biespecíficos , Neoplasias , Humanos , Anticorpos Biespecíficos/efeitos adversos , Inibidores de Checkpoint Imunológico/efeitos adversos , Neoplasias/tratamento farmacológico , Anticorpos Monoclonais/uso terapêutico , Imunoterapia/efeitos adversos , Imunoterapia/métodos
19.
BMJ Case Rep ; 17(4)2024 Apr 16.
Artigo em Inglês | MEDLINE | ID: mdl-38627054

RESUMO

Extramedullary relapse in patients with multiple myeloma (MM) is often associated with loss of biochemical response and the appearance of measurable residual disease in the bone marrow. Fever is an unusual presenting manifestation of MM. Treatment of extramedullary relapse in patients progressing on proteasome inhibitors, anti-CD38 monoclonal antibodies and immunomodulatory drugs is challenging, as access to chimeric antigen receptor T-cells and bispecific antibodies is limited. We report a case of relapsed MM who presented with fever and hepatic space-occupying lesion mimicking hepatocellular carcinoma. In this case report, we also present our experience of using a novel combination regimen comprising Dara-Pom-Benda-Dexa (daratumumab, pomalidomide, dexamethasone and bendamustine) for relapsed MM.


Assuntos
Mieloma Múltiplo , Talidomida/análogos & derivados , Humanos , Mieloma Múltiplo/patologia , Cloridrato de Bendamustina/uso terapêutico , Dexametasona/uso terapêutico , Recidiva Local de Neoplasia/tratamento farmacológico , Anticorpos Monoclonais/uso terapêutico , Fígado/patologia , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapêutico
20.
Continuum (Minneap Minn) ; 30(2): 364-378, 2024 04 01.
Artigo em Inglês | MEDLINE | ID: mdl-38568488

RESUMO

OBJECTIVE: This article describes strategies for the preventive treatment of migraine including the emerging role of calcitonin gene-related peptide (CGRP)-targeted therapies and introduces novel paradigms for the preventive treatment of migraine. LATEST DEVELOPMENTS: Multiple migraine medications targeting CGRP have been introduced since 2018, including injectable monoclonal antibodies (ie, eptinezumab, erenumab, fremanezumab, and galcanezumab) and oral small-molecule CGRP receptor antagonists (ie, ubrogepant, rimegepant, atogepant, and zavegepant). With the exceptions of ubrogepant and zavegepant, which are approved only as acute treatments, all of these agents have demonstrated efficacy in the preventive treatment of migraine; the monoclonal antibodies and atogepant have evidence of effectiveness in adults with either episodic or chronic migraine. The safety and tolerability profiles of CGRP-targeted therapies in migraine are favorable. ESSENTIAL POINTS: The goals of preventive migraine therapy include reducing the frequency, severity, duration, and disability associated with attacks, reducing the need for acute treatment and the risk of medication overuse, enhancing self-efficacy and health-related quality of life, and reducing headache-related distress and interictal burden. Six drugs targeting CGRP (four monoclonal antibodies and two gepants) are now available for the preventive treatment of episodic migraine in adults. The efficacy of CGRP-targeted medications in the acute and preventive treatment of migraine, together with good safety and tolerability, has led to the emergence of new approaches to preventive treatment.


Assuntos
Peptídeo Relacionado com Gene de Calcitonina , Transtornos de Enxaqueca , Piperidinas , Piridinas , Pirróis , Compostos de Espiro , Adulto , Humanos , Qualidade de Vida , Transtornos de Enxaqueca/tratamento farmacológico , Transtornos de Enxaqueca/prevenção & controle , Anticorpos Monoclonais/uso terapêutico
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