Shiga toxin: intestinal cell receptors and pathophysiology of enterotoxic effects.

Shiga toxin: intestinal cell receptors and pathophysiology of enterotoxic effects.
复制标题

志贺毒素:肠细胞受体和肠毒性作用的病理生理学。

DOI:
10.1093/clinids/13.supplement_4.s304
复制
发表时间:
1991
期刊:
Reviews of infectious diseases
影响因子:
--
通讯作者:
Donohue-Rolfe,A
Donohue-Rolfe,A
中科院分区:
--
文献类型:
--
作者:
Keusch,GT;Jacewicz,M;Mobassaleh,M;Donohue-Rolfe,A

文献摘要

参考文献

被引文献

相似文献

滋贺毒素在家兔小肠内具有肠毒性,并与微绒毛膜(MVM)结合。该毒素对具有末端gal-αl→4gal二糖的糖脂具有特异性,包括MVM中的中性糖脂Gb 3。Gb 3在兔小肠中受到发育调节,在动物达到生命的第16天之前以非常低的浓度存在。在老年动物中,Gb 3含量的增加被MVM结合毒素的能力的增加所抑制,这也与液体分泌反应相关。滋贺毒素选择性地与含有Gb 3的绒毛细胞结合,而不与不表达Gb 3的隐窝细胞结合。该毒素对绒毛细胞的靶向作用与生理学研究一致,该研究证实了绒毛细胞Na+吸收途径的抑制作用,对隐窝细胞Cl−分泌机制没有影响。这些效应足以解释滋贺毒素在兔模型中的肠毒性。
Shiga toxin is enterotoxic in rabbit small boweland binds to the microvillus membrane (MVM). The toxin exhibits specificity for glycolipids possessing a terminal gal-αl→4gal disaccharide, including the neutral glycolipid Gb3 in MVM. Gb3, which is developmentally regulated in the rabbit small bowel, is present in very low concentration until the animals reach day 16 of life. In older animals an increase in Gb3 content is paralleled by an increase in the ability of MVM to bind toxin, which also correlates with the fluid secretion response. Shiga toxin selectively binds to villus cells, which contain Gb3, and not to crypt cells, which do not express Gb3. Targeting of the villus cell by the toxin is consistent with physiologic studies that demonstrate inhibition of villus cell Na+absorptive pathways, with no effect on crypt cell Cl−secretory mechanisms. These effects are sufficient to account for the enterotoxicity of Shiga toxin in the rabbit model.
恒河猴志贺氏菌腹泻的病理生理学:肠道运输、形态学和细菌学研究。
DOI: --
发表时间: 1974
期刊: Gastroenterology
影响因子: 29.4
作者:
W. R. Rout;W. R. Rout;W. R. Rout;S. B. Formal;S. Formal;S. B. Formal;R. Giannella;R. Giannella;R. Giannella;G. J. Dammin;G. J. Dammin;G. J. Dammin
通讯作者: G. J. Dammin
DOI: 10.1016/0016-5085(89)90074-7
发表时间: 1989
期刊: Gastroenterology
影响因子: 29.4
作者:
Mobassaleh,M;Gross,SK;McCluer,RH;Donohue-Rolfe,A;Keusch,GT
通讯作者: Keusch,GT
1 型痢疾志贺氏菌产生的志贺毒素碳水化合物受体的鉴定。
DOI: --
发表时间: 1987
影响因子: 4.8
作者:
A. A. Lindberg;J. Brown;N. Strömberg;M. Westling;J. Schultz;K. Karlsson
通讯作者: K. Karlsson
志贺毒素:纯化、结构和功能。
DOI: 10.1093/clinids/13.supplement_4.s293
发表时间: 1991
期刊: Reviews of infectious diseases
影响因子: --
作者:
Donohue-Rolfe,A;Acheson,DW;Keusch,GT
通讯作者: Keusch,GT
DOI: --
发表时间: 1967
期刊: A M A Journal of Diseases of Children
影响因子: --
作者:
K. C. Haltalin
通讯作者: K. C. Haltalin