Class — Specific Regulation of Immunoglobulin Production by Rose Bengal in Human B Cell Lines and Peripheral Blood Lymphocytes
Abstract
We have previously reported that Rose Bengal (RB) can dance IgE production in rat spleen lymphocytes without increasing the production of IgG and IgM. To examine the effect of RB in human B cell lines, U-266 (IgE producer), H\My-2 (IgG producer) and NAT-30 (IgM producer) cells were cultured with RB, and the medium immunoglobulin (Ig) level was measured by ELISA. Though RB enhanced IgE production in rat lymphocytes, it inhibited IgE production in U-266 and IgG productionin HMy-2 cells in dose dependent manner. In NAT-30 cells, RB slightly inhibited IgM production at 0.1 μM, while it enhanced production at 10 μM. These results suggest that RB directly modulates Ig production in B cells, and that the modulatory effect is different between rat lymphocytes andhuman cell lines. Therefore, we examined the effect of RB on Ig production in human peripheral blood lymphocytes. We found that RB did not enhance IgE production in lymphocytes as well as human cell lines.
Keywords
Diesel Exhaust Particle Rose Bengal Rose Bengal Human Peripheral Blood Lymphocyte Immunoglobulin ProductionPreview
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