The mitogenic effect of the lymphocytosis promoting factor from Bordetella pertussis on human T gamma and non-T gamma cells
Kashiwa, H.; Hyodo, S.; Kishi, T.; Karakawa, T.; Kittaka, E.; Suzawa, T.; Sakano, T.; Usui, T.
Clinical and Experimental Immunology 58(2): 436-443
1984
ISSN/ISBN: 0009-9104 PMID: 6094059 Document Number: 238707
We studied the effect of lymphocytosis promoting factor (LPF), derived from the supernatant fluid of a culture of phase I Bordetella pertussis strain Tohama, on human lymphocyte proliferation. LPF was a potent mitogen for human mononuclear cells, specifically T cells. LPF failed to induce cytoplasmic immunoglobulin production by B cells. Removal of the monocytes from the T cell fraction diminished responses to LPF, but the response could be restored completely by the addition of 5.0% monocytes. These results suggest that LPF-induced cell proliferation is at least partially dependent on monocytes. In contrast to PHA, LPF stimulated T gamma cells to a greater extent than non-T gamma cells, but the magnitude of the T gamma or non-T gamma cell response was less than that of T cells, indicating that synergistic interactions between T gamma and non-T gamma cells are required for maximal response.