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类视黄醇和佛波酯对不同细胞系对多肽毒素相思豆毒素、红豆毒素、蓖麻毒素和白喉毒素敏感性的影响。

Effects of retinoids and phorbol esters on the sensitivity of different cell lines to the polypeptide toxins modeccin, abrin, ricin and diphtheria toxin.

作者信息

Sandvig K, Olsnes S

出版信息

Biochem J. 1981 Mar 15;194(3):821-7. doi: 10.1042/bj1940821.

Abstract

The effects of retinoic acid and 12-O-tetradecanoylphorbol 13-acetate on the sensitivities of a number of cell lines to the toxins modeccin, abrin, ricin and diphtheria toxin were studied. Retinoic acid and some other retinoids were found to protect a number of the cell lines against the toxins. HeLa cells that were protected bound much more retinoic acid than L-cells that were not protected. The tumour promoter 12-O-tetradecanoylphorbol 13-acetate was found to increase the sensitivity of cells to abrin, ricin and modeccin in the absence as well as in the presence of retinoic acid. Neither retinoic acid nor 12-O-tetradecanoylphorbol 13-acetate affected the extent of binding and pinocytotic uptake of toxins by the cells. Apparently retinoic acid and 12-O-tetradecanoylphorbol 13-acetate interfere with the entry of the toxins through the cell membrane.

摘要

研究了视黄酸和12 - O - 十四烷酰佛波醇 - 13 - 乙酸酯对多种细胞系对毒素相思豆毒素、蓖麻毒素和白喉毒素敏感性的影响。发现视黄酸和其他一些类视黄醇可保护多种细胞系免受毒素侵害。受到保护的HeLa细胞比未受保护的L - 细胞结合更多的视黄酸。发现肿瘤促进剂12 - O - 十四烷酰佛波醇 - 13 - 乙酸酯在有无视黄酸的情况下均会增加细胞对相思豆毒素、蓖麻毒素和相思子毒素的敏感性。视黄酸和12 - O - 十四烷酰佛波醇 - 13 - 乙酸酯均不影响细胞对毒素的结合程度和胞饮摄取。显然,视黄酸和12 - O - 十四烷酰佛波醇 - 13 - 乙酸酯会干扰毒素通过细胞膜的进入。

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