Regulation of human B cell proliferation and differentiation by seminal plasma.

Abstract:

:To investigate the role of seminal plasma in human B cell functions, its effect on the proliferation and antibody secretion of tonsillar B cells and an Epstein-Barr virus (EBV) transformed human B cell line, A4, was examined. Seminal plasma inhibited both the proliferation and differentiation of normal B cells only when added to the cultures at the early period of culture. If addition of seminal plasma was delayed beyond 5 to 6 days, it failed to inhibit IgG secretion. Seminal plasma did not show any inhibitory effect on A4 cells, but rather enhanced both the proliferation and IgG secretion of this B cell line. When the low and high mol. wt fractions of seminal plasma were tested for their biological effects on normal and transformed B cells, the low mol. wt fraction (less than 1 kD) was associated with the inhibitory effect of seminal plasma on normal B cells, whereas high mol. wt fractions (both dialysed and 1500-kD fraction) was involved in the enhancing effect on A4 cells. We conclude that (i) seminal plasma inhibits the early proliferation of normal human B cells, but does not inhibit the antibody-secreting capacity of mature B cells; and (ii) different molecules of seminal plasma act on the different stages of B cell maturation.

journal_name

Clin Exp Immunol

authors

Lee HK,Lee HH,Park YM,Lee JH,Ha TY

doi

10.1111/j.1365-2249.1991.tb05700.x

subject

Has Abstract

pub_date

1991-07-01 00:00:00

pages

174-9

issue

1

eissn

0009-9104

issn

1365-2249

journal_volume

85

pub_type

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