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자료유형
학술저널
저자정보
저널정보
대한산부인과학회 Obstetrics & Gynecology Science Obstetrics & Gynecology Science 제51권 제1호
발행연도
2008.1
수록면
73 - 81 (9page)

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Objective: Although the characteristic feature and function of peritoneal B (B-1) cells are very different from splenic B (B-2) cells, peritoneal B cell study is not known well. The aim of this study is to investigate the effects of dexamethasone on peritoneal (or B-1 cells) and splenic B cells (or B-2 cells). Methods: The synthetic corticosteroid, dexamethasome, was injected to BALBc mice intraperitoneally or subcutaneously at 4-5 pm for 7 days. Expression level of B cell surface marker analyzed by flow cytometry. The purified peritoneal B cell and splenic B cells were obtained and cell survival rate was analysed by flow cytometry. Isolated B cells were cultured in medium with different concentration of dexamaethasone. During the culture of these cells, immunoglobulin secreted into the culture supernatants was evaluated by enzyme-linked immunosorbent assay. Entering of S phase was measured by proliferative assay. Results: Subcutaneous injection of high dose of Dexamethasone for 7 days did not affect cell surface markers of peritoneal and splenic B cells. However, all cell surface markers of peritoneal B cell after the treatment of dexamethasone are reduced by daily intraperitoneal injection of dexamethasone for 2 days. The survival rate of peritoneal and splenic B cell decrease with increasing concentration of dexamethasone. Proliferation of peritoneal B cells was less affected by dexamethasone than that of splenic B cells (p<0.05). Conclusions: Dexamethasone induced apoptosis in both peritoneal and splenic B cells. Proliferation and differentiation of splenic B cells were affected by dexamethasone, but peritoneal B cells are less sensitive to dexamethasone.

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