T cell regulation of pokeweed mitogen-induced polyclonal immunoglobulin production in mice: role of virus-replicating T cells in suppression.
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چکیده
منابع مشابه
Impaired antibody production in blunt trauma. Possible role for T cell dysfunction.
This study investigates mechanisms of impaired humoral immune response in a well-defined population of blunt trauma patients (n = 18, Injury Severity Score greater than or equal to 20). Spontaneous and pokeweed mitogen-induced polyclonal immunoglobulin production were assessed in cultures of peripheral blood mononuclear cells. The proliferative response to alloantigen and mitogen was assessed i...
متن کاملHuman B lymphocytes activated by Epstein-Barr virus (EBV) or by mitogens suppress mitogen-induced immunoglobulin production.
Polyclonal activation of human B lymphocytes by LPS or protein A, alone or in combination or by Epstein-Barr virus (EBV), generates suppressive conditions that inhibit the response of human B lymphocytes to pokeweed mitogen (PWM), measured by the induction of immunoglobulin-secreting cells (PFC). Moreover, EBV-transformed B cell lines of normal or neoplastic (Burkitt lymphoma) origin also suppr...
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Background: Despite demonstration of molecular and biochemical changes induced by heat shock on Leishmania, the immunological importance of such changes has not been elucidated. Objective: Studying the effect of two excretory factors prepared under heat shock and ambient temperature from Leishmania major on Balb/c splenocytes function. Methods: The parasites were cultured at 25°C and then sub...
متن کاملFrequencies of the separate human B cell subsets activatable to Ig secretion by Epstein-Barr virus and pokeweed mitogen
We have developed a microculture system suitable for limiting dilution analysis of Epstein-Barr virus (EBV)- and pokeweed mitogen (PWM)-induced activation of immunoglobulin secretion by human B cells. It was found that exogenous filler cells were not required to obtain optimal EBV-induced B cell precursor frequency (PF) estimates, although filler T cells were required for optimal PWM activation...
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Background: T cell Immunoglobulin, Mucin (TIM)-3, is a type I transmembrane glycoprotein belonging to TIM family. This receptor expresses on T helper type 1 (Th1) cells that binds to galectin-9 (Gal9); inducing an inhibitory signal. As a result, apoptosis of Th1 cells occurs and cytotoxicity of CD8 T cells becomes evident in vitro. Therefore, this immunomodulatory molecule may ...
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ورودعنوان ژورنال:
- Bulletin of the Chest Disease Research Institute, Kyoto University
دوره 16 1-2 شماره
صفحات -
تاریخ انتشار 1983