Receptors on Immunocompetent Cells

نویسندگان

  • Joseph M. Davie
  • William E. Paul
چکیده

During the course of the immune response to dinitrophenylated guinea pig albumin (DNP-GPA), a striking and parallel increase in avidity for epsilon-DNP-L-lysine occurs in the receptors on antigen-binding lymphocytes, antibody secreted by individual plaque-forming cells, and serum antibody molecules. A detailed analysis of the avidity distribution of antibody produced by plaque-forming cells indicates that this "immunologic maturation" is primarily due to a preservation of the high avidity subpopulation and a striking loss in the low avidity population rather than to sequential appearance of these cells. Moreover, the demonstration of the increased avidity of receptors of antigen-binding lymphocytes, which appear to be precursors of antibody-synthesizing cells, strongly suggests that the antigen-driven selectional process operates primarily on this cell type.

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Differences of IL-1β Receptors Expression by Immunocompetent Cells Subsets in Rheumatoid Arthritis

IL-1β is involved in the induction and maintenance of chronic inflammation in rheumatoid arthritis (RA). Its activity is regulated and induced by soluble and membrane-bound receptors, respectively. The effectiveness of the cytokine depends not only on the percentage of receptor-positive cells in an immunocompetent subset but also on the density of receptor expression. The objective of this stud...

متن کامل

SHARED IDIOTYPIC DETERMINANTS ON B AND T LYMPHOCYTES REACTIVE AGAINST THE SAME ANTIGENIC DETERMINANTS I . Demonstration of Similar or Identical Idiotypes on IgG Molecules and T-Cell Receptors with Specificity for the Same Alloantigens*

The immunocompetent cells that can recognize foreign structures by their own actively synthesized antigen-binding receptors are the lymphocytes (1). Two major groups of lymphocytes exist, with separate functions andwithout ability to transform into each other (2, 3) . One group is called T lymphocytes, due to their dependence on the presence of the thymus for development (2). The second group o...

متن کامل

Cellular Receptors

The possibility that a rat alloantiserum DA anti-Lewis possesses similar recognition structures for Lewis transplantation antigens, as do DA immunocompetent cells, was investigated by raising an antiserum against this alloantiserum in (Lewis x DA)F(1) hosts. This antiserum, as well as one provoked by injecting DA lymphoid cells, was active against recognition structures for Lewis antigens of DA...

متن کامل

Molecular mechanisms regulating B-cell negative selection.

The commitment of a pluripotential stem cell to the B-cell lineage and the progression of the committed B-cell precursor to a mature, immunocompetent B-cell is a highly regulated process. Extrinsic processes and internal programmes initiate and regulate the changes in gene expression that alter the phenotype and functional characteristics of the B-cell as it proceeds through its maturation. Man...

متن کامل

Biological behaviors of muscarinic receptors in mesenchymal stem cells derived from human placenta and bone marrow

Objective(s): Cells perform their functional activities by communicating with each other through endogenous substances and receptors. Post-translation, stem cells function properly in new host tissue by carrying specific cell surface receptors. We aimed to characterize muscarinic receptor subtypes in mesenchymal stem cells (MSCs) together with osteogenic and adipogenic...

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

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

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

عنوان ژورنال:
  • The Journal of Experimental Medicine

دوره 134  شماره 

صفحات  -

تاریخ انتشار 1971