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首页> 外文期刊>Cell biology international. >Effect of amino acids on cell proliferation and protein p53 expression in organotypic culture of lymphoid tissue from neonatal rats.
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Effect of amino acids on cell proliferation and protein p53 expression in organotypic culture of lymphoid tissue from neonatal rats.

机译:氨基酸对新生大鼠淋巴组织器官培养细胞增殖和蛋白p53表达的影响。

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摘要

The effect of the larger molecular weight l-amino acids on the development of spleen explants from 1- and 21-day rats in organotypic tissue culture was studied. The amino acids asparagine, lysine, arginine, and glutamic acid inhibited the growth zone of explants of immature tissue from 1-day animals but had an opposite, stimulating, effect on mature spleen tissue of 21-day rats. Immunohistochemical analysis revealed a reciprocal correlation between the expression of the proapoptotic protein, p53, and T-cell proliferation in response to lysine, asparagine, and glutamic acid. Interestingly only arginine reduced the area of p53 expression both in explants of mature and immature spleen tissue. The ability of arginine to reduce p53 expression can be suggested as one of the mechanisms of the tumor growth stimulation.
机译:研究了较大分子量的l-氨基酸对器官型组织培养1天和21天大鼠脾外植体发育的影响。氨基酸天冬酰胺,赖氨酸,精氨酸和谷氨酸抑制1日龄动物未成熟组织外植体的生长区,但对21天龄大鼠脾脏组织具有相反的刺激作用。免疫组织化学分析显示,凋亡蛋白,p53的表达与响应赖氨酸,天冬酰胺和谷氨酸的T细胞增殖之间存在相互关系。有趣的是,在成熟和未成熟脾脏组织的外植体中,精氨酸都只能减少p53表达的面积。精氨酸减少p53表达的能力可以被认为是肿瘤生长刺激的机制之一。

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