胶原蛋白肽对模拟微重力条件下鼠T淋巴细胞功能的改善作用

Effect of Collagen Peptides on Function of Mouse T Lymphocytes under Simulated Microgravity

目的:了解胶原蛋白肽对模拟微重力条件下培养的鼠T淋巴细胞功能的影响。方法:分离小鼠的脾细胞,采用旋转式细胞培养系统模拟微重力条件,采用有丝分裂源刀豆球蛋白A刺激T淋巴细胞,并分别加入不同浓度的胶原蛋白肽,检测淋巴细胞的增殖能力及培养上清中细胞因子的水平。结果:模拟微重力可以使脾脏T淋巴细胞的增殖能力受到抑制,产生细胞因子的水平下降,而胶原蛋白肽能促进模拟微重力条件下培养的淋巴细胞增殖及细胞因子分泌。结论:胶原蛋白肽可能通过调节淋巴细胞的增殖功能及细胞因子的分泌,减轻模拟微重力环境下对T淋巴细胞的抑制作用。

Objective:To understand the effect of collagen peptides on the function of mouse lymphocytes under simulated microgravity.Methods:The splenocytes of mice were isolated,and the rotary cell culture system was used to simulate the microgravity.The T lymphocytes were stimulated with mitotic agents,concanavalin A(ConA),and the cells were treated with different concentrations of collagen peptides.The proliferation of lymphocytes and the levels of cytokines in the supernatant were detected.Results:Simulated microgravity could inhibit the proliferation of spleen T lymphocytes and decrease the level of cytokines in the supernatant.Collagen peptides could promote the lymphocyte proliferation and cytokine production in cells cultured under simulated microgravity.Conclusion:Collagen peptides may attenuate the inhibitory effect of simulated microgravity on T lymphocytes by regulating the cell proliferation and the secretion of cytokines.