KONG Xiangrui,ZHANG Qimeng,ZOU Yue,et al.Research progress on traditional Chinese medicine regulation of MAPK signaling pathway in intervening slow transit constipation[J].ZHONGGUO YAOFANG,2026,37(11):1508-1514.
KONG Xiangrui,ZHANG Qimeng,ZOU Yue,et al.Research progress on traditional Chinese medicine regulation of MAPK signaling pathway in intervening slow transit constipation[J].ZHONGGUO YAOFANG,2026,37(11):1508-1514.DOI: 10.6039/j.issn.1001-0408.2026.11.22.
Research progress on traditional Chinese medicine regulation of MAPK signaling pathway in intervening slow transit constipation
low transit constipation (STC) is a common functional intestinal disorder caused by impaired colonic transit function, characterized by reduced bowel movement frequency, hard stools, and difficulty in defecation. The mitogen-activated protein kinase (MAPK) signaling pathway, which mainly includes extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 subtypes, plays a critical regulatory role in the occurrence and development of STC. This paper systematically reviews the multiple pathogenic mechanisms of the MAPK signaling pathway in STC and the research progress of traditional Chinese medicine (TCM) intervention.At the mechanistic level, the MAPK signaling pathway promotes the progression of STC through the following links:(1) Activation of p38 upregulates the expression of aquaporin 3 (AQP3)/AQP4 in the colon, leading to excessive reabsorption of water in the intestinal lumen; (2) It forms a positive feedback loop with nuclear factor-κB (NF-κB) to maintain low-grade intestinal inflammation, releases inflammatory factors such as tumor necrosis factor-α (TNF-α) and interleukin-1β (IL-1β), and inhibits smooth muscle contraction; (3) Overactivation of p38 downregulates the expression of occludin and mucin 2 while upregulates the expression of claudin-2, thereby disrupting the mucosal barrier; (4) The JNK/p38 signaling pathway activates the caspase cascade to induce apoptosis of intestinal epithelial cells, neurons, and interstitial cells of Cajal; (5) Abnormal ERK signaling and excessive activation of p38/JNK inhibit intestinal smooth muscle contraction and reduce 5-hydroxytryptamine secretion, ultimately resulting in impaired colonic transit function.At the intervention level, TCM compound formulas and single herbs have been proven to improve STC by regulating the MAPK signaling pathway. Their effects are syndrome type-dependent:yin-nourishing formulas (Zengye Chengqi Tang, Tongbian Tang) mainly regulate the ERK/AQP axis; yang-warming formulas (Jichuan Jian) target both ERK/JNK and anti-apoptosis; heat-clearing formulas (Sanren Tang) focus on p38/NF-κB anti-inflammation. A single drug can simultaneously cover multiple aspects including water metabolism, inflammation, barrier function, apoptosis, and intestinal motility.Current relevant studies still have limitations such as mechanisms mostly remaining at the correlational level and a lack of disease-syndrome integrated research models. Future studies should combine specific inhibitors or gene knockout to identify core targets, establish disease-syndrome integrated STC models, and use network pharmacology and molecular docking techniques to deeply analyze the fine mechanism of “component-target-phenotype”, so as to provide high-quality evidence for the precise regulation of the MAPK signaling pathway by TCM in the intervention of STC.
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