期刊
TOXICOLOGY LETTERS
卷 145, 期 3, 页码 261-271出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/S0378-4274(03)00304-7
关键词
apoptosis; cytokine production; splenocytes; Rhus verniciflua Stokes (RVS) glycoprotein
类别
Glycoprotein of Rhus verniciflua Stokes (RVS glycoprotein) was isolated and identified using SDS-PAGE. To study the anti-apoptotic effects of RVS glycoprotein on mouse splenocytes, splenocytes were exposed to 100 nM TPA (61.68 ng/ml) for 3 h with or without RVS glycoprotein (100 mug/ml). Results from our experiment showed that RVS glycoprotein protects from splenocyte apoptosis induced by 12-O-tetradecanoylphorbol 13-acetate (TPA). We also studied the effects of RVS glycoprotein on the proliferation of T/B cells and the production of cytokines. Our results showed that Concanavalin A (Con A)-induced T cell proliferation and the production of interleukin-2 (IL-2)/interteukin-4 (IL-4) were reduced, and that Lipopolysaccharide, (LPS)- induced B cell proliferation and the Tumor necrosis factor alpha (TNF-alpha) were reduced significantly by the addition of 50 mug/ml RVS glycoprotein (P < 0.01), compared to the control. These results indicate that RVS glycoprotein has the capacity to modulate apoptosis, cytokine production and T/B cell proliferation in splenocytes. (C) 2003 Elsevier Ireland Ltd. All rights reserved.
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