SOMATIC HYPERMUTATION IN T-INDEPENDENT (TI) AND T-DEPENDENT (TD) IMMUNE RESPONSES. • 38

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

T cell–independent development and induction of somatic hypermutation in human IgM+IgD+CD27+ B cells

IgM(+)IgD(+)CD27(+) B cells from peripheral blood have been described as circulating marginal zone B cells. It is still unknown when and where these cells develop. These IgM(+)IgD(+)CD27(+) B cells exhibit somatic hypermutations (SHMs) in their B cell receptors, but the exact nature of the signals leading to induction of these SHMs remains elusive. Here, we show that IgM(+)IgD(+)CD27(+) B cells...

متن کامل

t cell immune responses in psoriasis.

a central role for t cells and their cytokines in the pathogenesis of psoriasis has been proposed; however, there are controversies over the details of this issue. the goal of this study is to summarise currently available data on the importance of t cells in psoriasis pathogenesis. a  systematic  review  of  the  english  medical  literature  was  conducted  by  searching pubmed, embase, isi w...

متن کامل

Assessment of T-dependent and T-independent immune responses in cattle using a B cell ELISPOT assay

Understanding the mechanisms that maintain protective antibody levels after immunisation is important for vaccine design. In this study, we have determined the kinetics of plasma and memory B cells detectable in the blood of cattle immunised with model T-dependent or T-independent antigens. Immunisation with the T-D antigen resulted in an expansion of TNP-specific plasma cells post-TNP primary ...

متن کامل

CD4+ T-Cell-Independent Secondary Immune Responses to Pneumocystis Pneumonia

Pneumocystis pneumonia is a major cause of morbidity and mortality among immunocompromised patients, especially in the context of HIV/AIDS. In the murine model of Pneumocystis pneumonia, CD4(+) T-cells are required for clearance of a primary infection of Pneumocystis, but not the memory recall response. We hypothesized that the memory recall response in the absence of CD4(+) T-cells is mediated...

متن کامل

T-independent type II immune responses generate memory B cells

Unlike T-dependent immune responses against protein antigens, T-independent responses against polysaccharides confer long-lasting humoral immunity in the absence of recall responses and are not known to generate memory B cells. Here we report that polysaccharide antigens elicit memory B cells that are phenotypically distinct from those elicited by protein antigens. Furthermore, memory B cell re...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Pediatric Research

سال: 1996

ISSN: 0031-3998,1530-0447

DOI: 10.1203/00006450-199604001-00057