Results 31 to 40 of about 42,818 (256)

Regulatory T cell-mediated control of chronic inflammation

Frontiers in Immunology, 2012
Autoimmune inflammation including autoantibody-mediated inflammation is responsible for the lethal organ damage that occurs during autoimmune diseases.
Keishi eFujio, Tomohisa eOkamura, Shuji eSumitomo, Kazuhiko eYamamoto   +3 more
doaj   +1 more source

Proportions of circulating follicular helper T cells are reduced and correlate with memory B cells in HIV-infected children.

PLoS ONE, 2017
IntroductionHIV causes defects in memory B cells in children, but the mechanisms of those defects have not been fully elucidated. One possible mechanism is the lack of T-cell help to B cells during immune reactions. However, few studies have assessed the
Daniel M Muema, Gladys N Macharia, Babatunde A Olusola, Amin S Hassan, Greg W Fegan, James A Berkley, Britta C Urban, Eunice W Nduati   +7 more
doaj   +1 more source

Lymph Node Stromal Cells Generate Antigen-Specific Regulatory T Cells and Control Autoreactive T and B Cell Responses

Cell Reports, 2020
Summary: Within lymph nodes (LNs), T follicular helper (TFH) cells help B cells to produce antibodies, which can either be protective or autoreactive. Here, we demonstrate that murine LN stromal cells (LNSCs) suppress the formation of autoreactive TFH ...
Reza Nadafi, Catarina Gago de Graça, Eelco D. Keuning, Jasper J. Koning, Sander de Kivit, Tanja Konijn, Sandrine Henri, Jannie Borst, Rogier M. Reijmers, Lisa G.M. van Baarsen, Reina E. Mebius   +10 more
doaj   +1 more source

The elusive identity of T follicular helper cells

Trends in Immunology, 2010
Follicular helper T (Tfh) cells provide help to B cells and allow formation of long-lived antibody responses. Despite an improved understanding of the molecular program that drives Tfh cell formation, their definition remains elusive: neither follicular homing ability, Bcl-6 expression nor IL-21 secretion are exclusive properties of T cells that help B
Yu, Di, Vinuesa, Carola G.
openaire   +5 more sources

T Follicular Helper Cells and B Cell Dysfunction in Aging and HIV-1 Infection

Frontiers in Immunology, 2017
T follicular helper (Tfh) cells are a subset of CD4 T cells that provide critical signals to antigen-primed B cells in germinal centers to undergo proliferation, isotype switching, and somatic hypermutation to generate long-lived plasma cells and memory ...
Suresh Pallikkuth, Lesley de Armas, Stefano Rinaldi, Savita Pahwa   +3 more
doaj   +1 more source

The Role of “Adult‐Onset” Cancer Predisposition Genes in Pediatric Cancer: A Comprehensive Review

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Current literature estimates that 10% of pediatric cancers are caused by pathogenic or likely pathogenic (P/LP) germline variants in cancer predisposition genes (CPGs). Variants in CPGs thought to increase cancer risk exclusively during adulthood are referred to as “adult‐onset” CPGs (aoCPGs).
Maria Rozo, Miriam A. Bornhorst, Angela J. Waanders, Sara Zarnegar‐Lumley, Ashwin Lakshman Koppayi, Lucy A. Godley   +5 more
wiley   +1 more source

CD4+ T Follicular Helper Cells in Human Tonsils and Blood Are Clonally Convergent but Divergent from Non-Tfh CD4+ Cells

Cell Reports, 2020
Summary: T follicular helper (Tfh) cells are fundamental for B cell selection and antibody maturation in germinal centers. Circulating Tfh (cTfh) cells constitute a minor proportion of the CD4+ T cells in peripheral blood, but their clonotypic ...
Elena Brenna, Alexey N. Davydov, Kristin Ladell, James E. McLaren, Paolo Bonaiuti, Maria Metsger, James D. Ramsden, Sarah C. Gilbert, Teresa Lambe, David A. Price, Suzanne L. Campion, Dmitriy M. Chudakov, Persephone Borrow, Andrew J. McMichael   +13 more
doaj   +1 more source

Life of T Follicular Helper Cells

Molecules and Cells, 2015
Antibodies are powerful defense tools against pathogens but may cause autoimmune diseases when erroneously directed toward self-antigens. Thus, antibody producing cells are carefully selected, refined, and expanded in a highly regulated microenvironment (germinal center) in the peripheral lymphoid organs.
openaire   +3 more sources

Follicular helper T-cell–related lymphomas [PDF]

Blood, 2015
In this issue of Blood, Wang et al describe the occurrence and pathogenetic relevance of IDH2R172 mutations in angioimmunoblastic T-cell lymphoma (AITL).
openaire   +2 more sources

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source