Schafer D E, Lust W D, Sircar B, Goldberg N D
Proc Natl Acad Sci U S A. 1970 Oct;67(2):851-6. doi: 10.1073/pnas.67.2.851.
A heat-labile factor in cell-free filtrate of a Vibrio cholerae culture induces a marked rise in the wet-weight concentration of adenosine 3':5'-cyclic monophosphate (cyclic AMP) in the intestinal mucosa of the dog. The increase becomes appreciable 1-1.5 hr after intraluminal administration of the filtrate, about the same time as the onset of intestinal secretion in response to a heat-labile enterotoxin in the filtrate. These results are consistent with the hypothesis that cyclic AMP may be an intermediary in the intestinal secretory response to cholera toxin.
霍乱弧菌培养物的无细胞滤液中的一种热不稳定因子可使犬肠道黏膜中腺苷3':5'-环磷酸(环磷酸腺苷)的湿重浓度显著升高。在管腔内给予滤液后1 - 1.5小时,这种升高变得明显,这与滤液中热不稳定肠毒素引起的肠道分泌开始的时间大致相同。这些结果与环磷酸腺苷可能是肠道对霍乱毒素分泌反应的中间介质这一假说相一致。