J Appl Biomed 21:208-217, 2023 | DOI: 10.32725/jab.2023.018
Shenhuang plaster enhances intestinal anastomotic healing in rabbits through activation of the TGF-β and Hippo/YAP signaling pathways
- The First Affiliated Hospital of Zhejiang Chinese Medical University (Zhejiang Provincial Hospital of Chinese Medicine), Hangzhou 310006, Zhejiang, China
Although many efforts have been made to improve management strategies and diagnostic methods in the past several decades, the prevention of anastomotic complications, such as anastomotic leaks and strictures, remain a major clinical challenge. Therefore, new molecular pathways need to be identified that regulate anastomotic healing, and to design new treatments for patients after anastomosis to reduce the occurrence of complications. Rabbits were treated with a MST1/2 inhibitor XMU-XP-1, a Chinese medicine formula Shenhuang plaster (SHP) or a control vehicle immediately after surgery. The anastomotic burst pressure, collagen deposition, and hydroxyproline concentration were evaluated at 3 and 7 days after the surgery, and qRT-PCR and western-blot analyses were used to characterize mRNA and protein expression levels. Both XMU-XP-1 and SHP significantly increased anastomotic burst pressure, collagen deposition, and the concentration of hydroxyproline in intestinal anastomotic tissue at postoperative day 7 (POD 7). Importantly, SHP could induce TGF-β1 expression, which activated its downstream target Smad-2 to activate the TGF-β1 signaling pathway. Moreover, SHP reduced the phosphorylation level of YAP and increased its active form, and treatment with verteporfin, a YAP-TEAD complex inhibitor, significantly suppressed the effects induced by SHP during anastomotic tissue healing. This study demonstrated that activation of the Hippo-YAP pathway enhances anastomotic healing, and that SHP enhances both the TGF-β1/Smad and YAP signaling pathways to promote rabbit anastomotic healing after surgery. These results suggest that SHP could be used to treat patients who underwent anastomosis to prevent the occurrence of anastomotic complications.
Keywords: Anastomosis; Anastomotic healing; MST1, 2 inhibitor; Shenhuang plaster (SHP); TGF-β1; YAP
Grants and funding:
This work was supported by a grant from the National Natural Science Foundation of China (81973756), the Experimental Animal Science and Technology Foundation of Zhejiang Province, China (2018C37133), the TCM Science and Technology Program of Zhejiang Province, China (2020ZA054), and the Science and Technology Project of Zunyi [Zunyi City Kehe Support NS (2020) No. 18].
Conflicts of interest:
The authors have no conflict of interest to declare.
Received: June 8, 2023; Revised: September 29, 2023; Accepted: October 30, 2023; Prepublished online: November 15, 2023; Published: December 18, 2023 Show citation
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