Studies on Thermophile Products. IX. Isofatty Acid-Containing Phosphatidylglycerol That Enhances the Induction of Concanavalin A-Activated Suppressor T Cells

概要

論文の詳細を見る
A new enhancer of the induction of concanavalin A (Con A)-activated suppressor T (Ts) cells has been demonstrated in the ethanolysate of Bacillus stearothermophilus UBT8038. It was purified by successive silica gel column chromatographies and identified as phosphatidylglycerol with C_<14 : 0>-C_<18 : 0> isofatty acids (Fr. 7-C). Mouse splenocytes activated with Con A and Fr. 7-C (0.01-1μg/ml) in vitro significantly suppressed the proliferative response of syngenic splenocytes by mitogen stimulation in a dose-dependent manner, compared to those stimulated by Con A alone. The immunosuppressive response enhanced by Fr. 7-C disappeared when the cell populations of Thy-1.2 or CD8 positive lymphocytes were depleted. The result strongly suggests that Fr. 7-C is an immunosuppressive substance which enhances the induction of Con A-activated CD8 positive Ts cells.
社団法人日本薬学会の論文
1994-09-15