Article Publish Status: FREE
Abstract Title:

β-Patchoulene Ameliorates Water Transport and the Mucus Barrier in 5-Fluorouracil-Induced Intestinal Mucositis Ratsthe cAMP/PKA/CREB Signaling Pathway.

Abstract Source:

Front Pharmacol. 2021 ;12:689491. Epub 2021 Aug 25. PMID: 34512326

Abstract Author(s):

Jiazhen Wu, Yuxuan Gan, Huijuan Luo, Nan Xu, Liping Chen, Mengyao Li, Fengkun Guan, Ziren Su, Zhixiu Lin, Jianhui Xie, Yuhong Liu

Article Affiliation:

Jiazhen Wu


Intestinal mucositis (IM) is the main side effect observed in patients who receive cancer chemotherapy. The characteristics of ulceration, vomiting, and severe diarrhea cause patients to delay or abandon further treatment, thereby aggravating their progress. Hence, IM cannot be overlooked.-patchoulene (-PAE) is an active ingredient isolated from(Blanco) Benth (Labiatae) and has shown a marked protective effect against gastrointestinal diseases in previous studies. However, whether-PAE plays a positive role in IM is still unknown. Herein, we explore the effects and the underlying mechanism of-PAE against 5-fluorouracil (5-FU)-induced IM in IEC-6 cells and rats.-PAE significantly recovered cell viability, upregulated the IM-induced rat body weight and food intake and improved the pathological diarrhea symptoms. Aquaporin is critical for regulating water fluid homeostasis, and its abnormal expression was associated with pathological diarrhea in IM.-PAE displayed an outstanding effect in inhibiting aquaporin 3 (AQP3)the cAMP/protein kinase A (PKA)/cAMP-response element-binding protein (CREB) signaling pathway. Besides, inflammation-induced mucus barrier injury deteriorated water transport and aggravated diarrhea in IM-induced rats.-PAE's effect on suppressing inflammation and recovering the mucus barrier strengthened its regulation of water transport and thus alleviated diarrhea in IM-induced rats. In sum,-PAE improved IM in rats mainly by improving water transport and the mucus barrier, and these effects were correlated with its function on inhibiting the cAMP/PKA/CREB signaling pathway.

Study Type : Animal Study

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