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Role of B-Cell in the Pathogenesis of Systemic Sclerosis.

Systemic sclerosis (SSc) is a rare multisystem autoimmune disease, characterized by fibrosis, vasculopathy, and autoimmunity. Recent advances have highlighted the significant implications of B-cells in SSc. B-cells are present in affected organs, their subpopulations are disrupted, and they display an activated phenotype, and the regulatory capacities of B-cells are impaired, as illustrated by the decrease in the IL-10+ producing B-cell subpopulation or the inhibitory membrane co-receptor density. Recent multi-omics evidence highlights the role of B-cells mainly in the early stage of SSc and p

Immunosuppression in Glomerular Diseases: Implications for SARS-CoV-2 Vaccines and COVID-19.

BackgroundGlomerular diseases (GD) are chronic conditions that often involve immune dysfunction and require immunosuppressive therapy (IST) to control underlying pathogenesis. Unfortunately, such diseases appear to heighten risks of severe outcomes in COVID-19 and predispose to other infections that may be life-threatening. Thus, averting preventable infections is imperative in GD patients.SummaryThe advent of vaccines demonstrated to be safe and efficacious against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has favorably impacted the COVID-19 pandemic epidemiology. However,

Identification and assessment of differentially expressed necroptosis long non-coding RNAs associated with periodontitis in human.

BACKGROUND: Periodontitis is the most common oral disease and is closely related to immune infiltration in the periodontal microenvironment and its poor prognosis is related to the complex immune response. The progression of periodontitis is closely related to necroptosis, but there is still no systematic study of long non-coding RNA (lncRNA) associated with necroptosis for diagnosis and treatment of periodontitis. MATERIAL AND METHODS: Transcriptome data and clinical data of periodontitis and healthy populations were obtained from the Gene Expression Omnibus (GEO) database, and necroptosis-r

Identification and validation of CKAP2 as a novel biomarker in the development and progression of rheumatoid arthritis.

BACKGROUND: Rheumatoid arthritis (RA) is a common chronic joint disease. However, many patients exhibit inadequate responses to treatment due to disease heterogeneity. Identifying novel biomarkers for RA is crucial for advancing molecular diagnosis and identifying potential therapeutic targets. METHODS: Synovial tissue transcriptome data from RA patients and healthy controls were obtained from the GEO database. Differentially expressed gene (DEG) analysis, functional enrichment analysis, and weighted gene co-expression network analysis (WGCNA) identified key gene modules in RA. Machine learni

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… Aire attenuate collagen-induced arthritis by suppressing T follicular helper cells through ICOSL . Int Immunopharmacol . ( 2025 ) 144 : 113732 . doi: 10.1016/j.intimp.2024.113732 39626537 42 Lu J Zhou H Chen Y Xia X Yang J Ma J . …

B-cell targeted therapeutics in clinical development.

B lymphocytes are the source of humoral immunity and are thus a critical component of the adaptive immune system. However, B cells can also be pathogenic and the origin of disease. Deregulated B-cell function has been implicated in several autoimmune diseases, including systemic lupus erythematosus, rheumatoid arthritis, and multiple sclerosis. B cells contribute to pathological immune responses through the secretion of cytokines, costimulation of T cells, antigen presentation, and the production of autoantibodies. DNA-and RNA-containing immune complexes can also induce the production of type

Immunological Targets in Generalized Myasthenia Gravis Treatment: Where Are We Going Now?

BackgroundGeneralized myasthenia gravis (gMG) is a heterogeneous autoimmune disorder marked by antibody-mediated disruption of neuromuscular transmission. Despite advancements in immunosuppressive therapies and biologics, a subset of patients remains refractory, necessitating more targeted and personalized treatment strategies.ObjectiveThis review aims to synthesize current knowledge of the immunopathological mechanisms across gMG subtypes and to explore emerging therapeutic targets tailored to these diverse disease phenotypes.MethodsA narrative review was conducted, integrating recent finding

Beneath the surface in autoimmune hemolytic anemia: pathogenetic networks, therapeutic advancements and open questions.

In recent years, the pathophysiologic framework of autoimmune hemolytic anemias (AIHAs) has evolved considerably, extending beyond the simplistic paradigm of antibody-mediated red blood cell (RBC) destruction, which is now recognized as a downstream consequence of a broader immune dysregulation. AIHA is fundamentally orchestrated by a complex interplay between innate and adaptive immune components, including autoreactive B and T lymphocytes, macrophages, and the reticuloendothelial system. Central to disease pathogenesis are two interrelated mechanisms: clonal B-cell expansion with autoantibod

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… T follicular helper cells and T follicular regulatory cells in autoimmune diseases . Front Immunol . ( 2023 ) 14 : 1178792 . doi: 10.3389/fimmu.2023.1178792 , PMID: 37187757 PMC10175690 83 Gao Y Jin H Nan D Yu W Zhang J Yang Y . … T-follicular helper cell expansion and chronic T-cell activation are characteristic immune anomalies in Evans syndrome . Blood . ( 2022 ) 139 : 369–83 . doi: 10.1182/blood.2021012924 , PMID: 34424963 PMC8777200 85 Liu X Yao J Zhao Y Wang J Qi H . …

Гематологические маньяки маскируются как ревматологические заболевания: серия дел и обзор.

RATALE: Гематологическая недостаточность может имитировать ревматологические заболевания, создавая серьезную диагностическую проблему из-за перекрывающихся клинических особенностей. В настоящем исследовании подчеркивается 5 - случаи гематологических маньяков, представляющих собой ревматологические расстройства, и обсуждаются связанные с этим диагностические сложности. БОЛЕЕ ТРУДЯЩИЕСЯ: 64 в адрес 78, с различными рематологическими симптомами, включая полиартрит, васкулит, явление Рейно, и такими систематическими симптомами, как потеря веса, усталость и ночной пот. В ходе первоначальной эксперт

" Interleukin-27 " и " Аутоиммунные расстройства: компрессивный обзор иммунных функций " .

Аутоиммунные расстройства (АД) создают значительное бремя для здоровья и экономики во всем мире, характеризующееся ошибочной атакой иммунной системы организма на его собственные ткани. Хотя конкретные механизмы, лежащие в основе их развития, по-прежнему остаются неясными, речь идет о сочетании генетической предрасположенности (генетических предрасположений) и экологических факторов. Interleukin-27 (IL-27), среди многочисленных участвующих цитокинов, стал ключевым регулятором, выполняющим двойную роль в иммунной модуляции. Этот обзор погружается в молекулярную структуру и механизмы сигнализации

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… IL-21–deficient T follicular helper cells support B cell responses through IL-27 in patients with chronic hepatitis B. Front. Immunol. 2021;11:599648. doi: 10.3389/fimmu.2020.599648. 50. …

Spliced or Unspliced, That Is the Question: The Biological Roles of XBP1 Isoforms in Pathophysiology.

X-box binding protein 1 (XBP1) is a member of the CREB/ATF basic region leucine zipper family transcribed as the unspliced isoform (XBP1-u), which, upon exposure to endoplasmic reticulum stress, is spliced into its spliced isoform (XBP1-s). XBP1-s interacts with the cAMP response element of major histocompatibility complex class II gene and plays critical role in unfolded protein response (UPR) by regulating the transcriptional activity of genes involved in UPR. XBP1-s is also involved in other physiological pathways, including lipid metabolism, insulin metabolism, and differentiation of immun

Multicenter phase 2 study of romidepsin plus lenalidomide for previously untreated peripheral T-cell lymphoma.

Peripheral T-cell lymphomas (PTCLs) are associated with poor prognosis when treated with cytotoxic chemotherapy. We report the findings of a phase 2 study evaluating a chemotherapy-free combination of romidepsin plus lenalidomide as initial treatment for patients with PTCL who were aged >60 years or noncandidates for chemotherapy. Treatment was initiated with romidepsin 10 mg/m2 IV on days 1, 8, and 15 and lenalidomide 25 mg taken orally from days 1 to 21 of 28-day cycle for up to 1 year. The primary objective was overall response rate (ORR). Secondary objectives included safety and survival.

Systemic lupus erythematosus: pathogenesis and targeted therapy.

Systemic lupus erythematosus (SLE) is a multifaceted autoimmune disorder characterized by dysregulated immune responses and autoantibody production, which affects multiple organs and varies in clinical presentation and disease severity. The development of SLE is intricate, encompassing dysregulation within the immune system, a collapse of immunological tolerance, genetic susceptibilities to the disease, and a variety of environmental factors that can act as triggers. This review provides a comprehensive discussion of the pathogenesis and treatment strategies of SLE and focuses on the progress

Mycobiota и Antifungal Antibodies как новые целевые показатели для диагностики и прогнозирования болезней человека.

Человеческое тело колонизируется различными микроорганизмами, при этом наиболее активно изучаются бактерии. Однако грибы, которые в совокупности известны как «микобиота», все чаще признаются в качестве составных компонентов микробиоты, населяющей почти все мукосальные поверхности. Комменсальные грибы оказывают влияние на иммунитет хост-приемника, как и бактерии, и способствуют выполнению других важных функций, включая метаболизм. В этом новом понимании грибы рассматриваются как потенциальные биомаркеры для диагностики и прогнозирования различных заболеваний. В этом обзоре мы изучаем двойную ро

Challenges and strategies in clinical applications of CAR-T therapy for autoimmune diseases.

Chimeric antigen receptor (CAR) T-cell therapy has demonstrated substantial efficacy against various hematological malignancies. The remarkable success of CAR-T cell therapy in targeting B-cell malignancies has generated significant interest in its potential application for treating autoimmune diseases (ADs). By engineering T cells to express CARs that specifically recognize B-cell antigens, researchers aim to selectively eliminate or modulate the dysregulated autoimmune responses underlying disease pathology. Early clinical trials targeting the B-cell marker CD19 have shown promising results,

Роль растворимого CD40L в аутоиммунных заболеваниях.

CD40-CD40L имеет важное значение для модуляции иммунной системы, поскольку она координирует как адаптивные, так и подстрекательские реакции. К числу аутоиммунных заболеваний относятся системная волчанка, множественный склероз, воспалительный кишечник, тромбоцитопентическая пурпура и ревматоидный артрит. Таким образом, ось CD40-CD40L является значительной терапевтической целью, несмотря на тот факт, что ее ингибирование было сначала ограничено тромбоэмболическими негативными последствиями. В результате проведенных в последнее время исследований были разработаны новые терапевтические подходы, та

XPO1 inhibitor selinexor enhances the apoptotic effect of azacitidine in T-cell lymphoma with TET2/RHOA mutations via JAK3/STAT3 axis.

BACKGROUND: Peripheral T-cell lymphoma (PTCL) is a highly heterogeneous group of lymphoid malignancies with diverse pathological and molecular features. Patients harboring TET2 and RHOA double mutations exhibit poor response to anthracycline-based chemotherapy and unfavorable prognosis. Azacitidine, a hypomethylating agent, is frequently used in combination with anthracycline-based regimens in PTCL. However, resistance remains a significant challenge. This study aims to explore novel targeted therapies to overcome therapeutic resistance in TET2/RHOA-mutated PTCL patients. METHODS: A systemati

Anti-PEG Antibodies and Their Biological Impact on PEGylated Drugs: Challenges and Strategies for Optimization.

Polyethylene glycol (PEG) has been widely utilized in optimizing therapeutics due to its excellent biocompatibility and chemical stability. However, multiple dosing of PEGylated drugs may result in toxicity due to PEG accumulation in tissues, leading to the formation of anti-PEG antibodies (APAs), which can accelerate drug clearance, reduce efficacy, and alongside enhanced side effects, such as allergic reactions. Notably, pre-existing APAs have also been detected in individuals with no prior exposure to PEGylated drugs, raising additional clinical concerns. This review summarizes the mechanis

Novel Immunotherapies for Myasthenia Gravis.

Myasthenia gravis (MG), a prototype autoimmune neurological disease, had its therapy centred on corticosteroids, non-steroidal broad-spectrum immunotherapy and cholinesterase inhibitors for several decades. Treatment-refractory MG and long-term toxicities of the medications have been major concerns with the conventional therapies. Advances in the immunology and pathogenesis of MG have ushered in an era of newer therapies which are more specific and efficacious. Complement inhibitors and neonatal Fc receptor blockers target disease-specific pathogenic mechanisms linked to myasthenia and have pr

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… There is increase in the pro-inflammatory Th17 and T follicular helper cells (Tfh) which promote B cell activation and generate autoantibodies. 10 , 11 Regulatory B cells which suppress autoimmunity are also functionally abnormal in MG. …

Immune landscape-based machine-learning-assisted subclassification, prognosis, and immunotherapy prediction for glioblastoma.

IntroductionAs a malignant brain tumor, glioblastoma (GBM) is characterized by intratumor heterogeneity, a worse prognosis, and highly invasive, lethal, and refractory natures. Immunotherapy has been becoming a promising strategy to treat diverse cancers. It has been known that there are highly heterogeneous immunosuppressive microenvironments among different GBM molecular subtypes that mainly include classical (CL), mesenchymal (MES), and proneural (PN), respectively. Therefore, an in-depth understanding of immune landscapes among them is essential for identifying novel immune markers of GBM.

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… Feature type | Detailed signature names Immune and stromal cells | Activated B cell, activated CD4 T cell, activated CD8 T cell, CD56bright natural killer cell, CD56dim natural killer cell, myeloid-derived suppressor cell, T follicular helper cell, Type 17 T helper cell, aDC, adipocytes, astrocytes, … Compared with CL and PN, MES has a significant higher percentage of myeloid-derived suppressor cells (MDSC), T follicular helper cells, astrocytes, fibroblasts, and macrophages but a much lower proportion of CD56bright natural killer cells and CD56dim natural killer cells. …

Dendritic cell biology and its role in tumor immunotherapy.

As crucial antigen presenting cells, dendritic cells (DCs) play a vital role in tumor immunotherapy. Taking into account the many recent advances in DC biology, we discuss how DCs (1) recognize pathogenic antigens with pattern recognition receptors through specific phagocytosis and through non-specific micropinocytosis, (2) process antigens into small peptides with proper sizes and sequences, and (3) present MHC-peptides to CD4+ and CD8+ T cells to initiate immune responses against invading microbes and aberrant host cells. During anti-tumor immune responses, DC-derived exosomes were discovere

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… T follicular helper cells, a subgroup of T cells, mediate important cell-cell interactions with B cells that occur within the follicles of secondary lymphoid organs. These T cells also stimulate and govern B cells to produce antibodies. …