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Fang W, Zhao P, Shen A, Liu L, Chen H, Chen Y, Peng J, Sferra TJ, Sankararaman S, Luo Y, Ke X. Effects of Qing Hua Chang Yin on lipopolysaccharide‑induced intestinal epithelial tight junction injury in Caco‑2 cells. Mol Med Rep 2021; 23:205. [PMID: 33495820 PMCID: PMC7821280 DOI: 10.3892/mmr.2021.11844] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2020] [Accepted: 11/25/2020] [Indexed: 12/19/2022] Open
Abstract
Disruption of the intestinal mucosal barrier integrity is a pathogenic process in inflammatory bowel disease (IBD) development, and is therefore considered a drug discovery target for IBD. The well‑known traditional Chinese formulation Qing Hua Chang Yin (QHCY) has been suggested as a potential therapeutic agent for the treatment of ulcerative colitis. However, the possible underlying molecular mechanisms regarding its therapeutic effect remain unclear. Consequently, the present study investigated the effects of QHCY on lipopolysaccharide (LPS)‑induced loss of intestinal epithelial barrier integrity in vitro using the Caco‑2 cell model of intestinal epithelium. QHCY reversed the LPS‑induced decrease in transepithelial electrical resistance and significantly alleviated the increased fluorescently‑labeled dextran 4 flux caused by LPS. Moreover, QHCY upregulated the mRNA and protein expression levels of occludin, zona occludens‑1 and claudin‑1 in LPS‑exposed Caco‑2 cells. In conclusion, QHCY was able to protect intestinal epithelial barrier integrity following an inflammatory insult; the protective effects of QHCY may be mediated by modulation of the expression of tight junction proteins.
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Affiliation(s)
- Wenyi Fang
- Spleen and Stomach Research Room, Second People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350003, P.R. China
| | - Peilin Zhao
- Spleen and Stomach Research Room, Second People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350003, P.R. China
| | - Aling Shen
- Academy of Integrative Medicine, Geriatric Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Liya Liu
- Academy of Integrative Medicine, Geriatric Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Hongwei Chen
- Academy of Integrative Medicine, Geriatric Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Youqin Chen
- Academy of Integrative Medicine, Geriatric Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Jun Peng
- Academy of Integrative Medicine, Geriatric Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Thomas J Sferra
- Department of Pediatrics, Case Western Reserve University School of Medicine, Rainbow Babies and Children's Hospital, Cleveland, OH 44106, USA
| | - Senthilkumar Sankararaman
- Department of Pediatrics, Case Western Reserve University School of Medicine, Rainbow Babies and Children's Hospital, Cleveland, OH 44106, USA
| | - Yunfeng Luo
- Spleen and Stomach Research Room, Second People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350003, P.R. China
| | - Xiao Ke
- Spleen and Stomach Research Room, Second People's Hospital Affiliated to Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350003, P.R. China
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