Results 151 to 160 of about 15,025,843 (286)

Antibody durability is influenced by interleukin-2 production by undifferentiated memory T helper cells and extensive B cell clonal expansion

Cell Reports
Summary: SARS-CoV-2-neutralizing antibody titers serve as immune correlates of protection against COVID-19; however, the durability varies among vaccinees.
Masanori Isogawa, Masahiro Shinoda, Ryutaro Kotaki, Kazutaka Terahara, Taishi Onodera, Kiyomi Kabasawa, Mio Toyama-Kousaka, Mizuki Fujisawa, Mitsukaze Watanabe, Keisuke Tonouchi, Tommy Terooatea, Ayumi Kitano, Yu Adachi, Saya Moriyama, Tomohiro Takano, Shuetsu Fukushi, Takayuki Matsumura, Kazuo Yamashita, Masaharu Shinkai, Yoshimasa Takahashi   +19 more
doaj   +1 more source

Autoreactivity Versus Autoimmunity: Characteristics of Autoantigen‐Specific CD4 T Cells in Rheumatoid Arthritis and Health

Arthritis &Rheumatology, EarlyView.
Objective CD4 T cells specific for citrullinated (cit) peptides are key players in rheumatoid arthritis (RA) immunopathogenesis. Characterizing these cells and identifying features of healthy and RA‐associated autoreactivity will provide valuable insight into disease mechanisms and form the basis of immune state biomarkers to facilitate the next ...
James A. Stanway, Daniel Peters, Helen Waller, Jeremy Lakey, Henrique De Paula Lemos, Kristian Williams, Abbie Degnan, Julie Diboll, Abdul Mannan Baru, David Tough, Arthur G. Pratt, Catharien M.U. Hilkens, Amy E. Anderson, John D. Isaacs   +13 more
wiley   +1 more source

Helper T cell subsets: Development, function and clinical role in hypersensitivity reactions in the modern perspective

Heliyon
Helper T cells are traditionally classified into T helper 1 (TH1) and T helper 2 (TH2). The more recent discoveries of T helper 17 (TH17), follicular helper T cells (TFH) and regulatory T cells (Treg) enhanced our understanding on the mechanisms of ...
Andy Ka Chun Kan, Wang Tik Tang, Philip H. Li   +2 more
doaj   +1 more source

Homocitrullinated Peptides Drive Pro‐Inflammatory T Cell Responses in a Humanized Mouse Model of Rheumatoid Arthritis

Arthritis &Rheumatology, EarlyView.
Objective Anti‐homocitrullinated protein/peptide antibodies are specific to rheumatoid arthritis (RA) and predictive of worse prognosis, suggesting a pathogenic role for autoreactivity to homocitrullinated peptides (HomoCitP). However, T cell responses to HomoCitP remain largely unexplored.
Sofya Ulanova, Jaspreet Kaur, Gabrielle Buckley, S. M. Mansour Haeryfar, Lisa Cameron, Ewa Cairns, Lillian Barra   +6 more
wiley   +1 more source

Distinct Molecular Pathways Supporting Sjögren Disease Clusters and Disease Progression

Arthritis &Rheumatology, EarlyView.
Objective Sjögren disease (SjD) is a heterogeneous autoimmune disease. We aimed to investigate blood transcriptomic signatures and disease progression among three recently defined clusters of patients with SjD: (1) B cell active disease with low symptom burden (BALS), (2) high systemic activity (HSA), and (3) low systemic activity with high symptom ...
Sacha E. Silva‐Saffar, Yann Nguyen, Raphaèle Seror, Jacques‐Eric Gottenberg, Anna Niarakis, Xavier Mariette, Gaetane Nocturne   +6 more
wiley   +1 more source

The development and fate of follicular helper T cells defined by an IL-21 reporter mouse

, 2012
Germinal centers require CD4 follicular helper T cells (T cells), whose hallmark is expression of the transcriptional repressor Bcl-6, the chemokine receptor CXCR5 and interleukin 21 (IL-21).
Kallies, Axel, Katja Lüthje, David M Tarlinton, Lüthje, Katja, Nutt, Stephen L., Amanda Light, Light, Amanda, Stephen L Nutt, Axel Kallies, Tarlinton, David M., Belz, Gabrielle T., Shimohakamada, Yoko, Yoko Shimohakamada, Gabrielle T Belz   +13 more
core   +1 more source

Dnmt3a Mutations Limit Normal and Autoreactive CD4+ T Follicular Helper Responses and Attenuate T Cell–Driven Joint Inflammation

Arthritis &Rheumatology, EarlyView.
Objective Somatic DNMT3A mutations are the most common drivers of clonal hematopoiesis in patients with rheumatoid arthritis (RA) and have been associated with seropositive disease and increased markers of inflammation. These mutations are predominantly hypomorphic or dominant‐negative, reducing DNMT3A function.
Yunbing Shen, Sanjaykumar Boddul, Zhaojun Li, Zsolt Kasza, Marlene Schülein, Bruno Raposo, Karine Chemin, Per‐Johan Jakobsson, Alexander Espinosa, Lars Klareskog, Fredrik Wermeling   +10 more
wiley   +1 more source

Deep Immunophenotyping Reveals Distinct Immune Signatures in Axial Spondyloarthritis and Psoriatic Arthritis

Arthritis &Rheumatology, EarlyView.
Objective Axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) are overlapping yet distinct conditions within the SpA spectrum. As divergent immunophenotypes may influence disease course and therapeutic response, we compared immune cell subsets, cytokine profiles, and inflammatory mediators.
Natalie Frede, Nils Craig‐Müller, Silke Kohrt, Marei‐Theresa Bott, Ulrich Salzer, Ana Cecilia Venhoff, Jens Thiel, Julia Frede, Reinhard E. Voll, Marta Rizzi, Raquel Lorenzetti, Nils Venhoff   +11 more
wiley   +1 more source

Age‐Associated B Cells Contribute to Inflammation Via Antibody‐Independent Mechanisms in Takayasu Arteritis

Arthritis &Rheumatology, EarlyView.
Objective Although Takayasu arteritis (TAK) is not a prototypical autoantibody‐mediated disease, accumulating evidence suggests that B cells are involved. This study aimed to investigate the pathway of B cell activation and its contributions to TAK pathogenesis. Methods Histologic analysis of paravascular lymph nodes and affected arteries was conducted
Chenglong Fang, Xiaoxi Yang, Xiaochuan Sun, Shangyi Jin, Lihong Du, Jinwei Gao, Jing Li, Zhen Chen, Yuexin Chen, Mengtao Li, Xinping Tian   +10 more
wiley   +1 more source

Abatacept Reduces CD319+ (SLAMF7) Cytotoxic T Cells and Cytokine Production in Systemic Sclerosis

Arthritis &Rheumatology, EarlyView.
Objective Systemic sclerosis (SSc) is characterized by immune dysregulation and fibrosis. We investigated whether abatacept modulates CD319/SLAMF7‐expressing cytotoxic T cells implicated in diffuse cutaneous SSc. Methods In this ancillary ASSET trial analysis, peripheral blood mononuclear cells from 67 participants were analyzed at baseline and months ...
Mikel Gurrea‐Rubio, Laura A. Cooney, Kohei Maeda, Phillip L. Campbell, Qi Wu, Camila I. Amarista, Alexander Stinson, Ray Ohara, Yang Mao‐Draayer, Michael L. Whitfield, Shiv Pillai, Poulami Dey, Johann E. Gudjonsson, Pei‐Suen Tsou, Dinesh Khanna, David A. Fox   +15 more
wiley   +1 more source