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. 1989 Feb;66(2):176–182.

IL-2-induced polyclonal proliferation of human peripheral blood lymphocytes: functional and phenotypic characteristics of proliferating cells.

B K Mookerjee 1, P B Chen 1, J L Pauly 1
PMCID: PMC1385083  PMID: 2466768

Abstract

Unstimulated human peripheral blood lymphocytes (HPBL) were found to proliferate when cultured in vitro with interleukin-2 (IL-2). In bulk long-term cultures of HPBL cultured with IL-2, cell numbers usually doubled after 8-11 days of culture, and a 10-fold increase in cell number occurred between the second and third weeks of culture. These cells retained their ability to respond to a panel of T-cell dependent antigens, phytomitogens and allogeneic cells up to Day 21 of culture. The proliferating cells predominantly expressed the T-cell antigens (CD3, CD4 and CD8), but not antigens of natural killer (NK) cells, B cells or mononuclear phagocytic cells. The proportion of cells expressing CD3 and CD4 antigens progressively increased with length of culture. Purified lymphocytes expressing either CD4 or CD8 antigens were also found to be capable of showing a proliferative response to IL-2, especially when provided with autologous accessory cells. However, purified human peripheral blood B cells expressing the Leu 12 antigen did not respond with or without autologous accessory cells. Unlike the responses to phytomitogen, soluble antigens or allogeneic cells, the proliferative responses of HPBL to IL-2 were not inhibited by a monoclonal antibody (OK-Ia-1) to the non-polymorphic part of human class II histocompatibility antigens.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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