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Zhang D, Wang Z, Ma L, Xu L, Fan S, Su Y, Shi X, Hu J, Zhao S, Li W, Linghu E, Yan L. Local injection of adipose-derived mesenchymal stem cells in silk fibroin solution on the regeneration of lower esophageal sphincter in an animal model of GERD. Front Cell Dev Biol 2023; 11:993741. [PMID: 37077418 PMCID: PMC10106618 DOI: 10.3389/fcell.2023.993741] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Accepted: 03/09/2023] [Indexed: 04/05/2023] Open
Abstract
Presently, various tissue engineering methods using adult stem cells and biomaterials are being confirmed to regenerate vessels, cardiac muscle, bladder, and intestines. However, there are few studies about the repair of the lower esophageal sphincter (LES) may help alleviate the symptoms of gastroesophageal reflux disease (GERD). This study aims to determine whether Adipose-Derived Stem Cells (ADSCs) combined with regenerated silk fibroin (RSF) solution could regenerate the LES. In vitro, the ADSCs were isolated, identified, and then cultured with an established smooth muscular induction system. In vivo, in the experimental groups, CM-Dil labeled ADSCs or induced ADSCs mixed with RSF solution were injected into the LES of rats after the development of the animal model of GERD respectively. The results showed that ADSCs could be induced into smooth muscular-like cells with the expression of h-caldesmon, calponin, α-smooth muscle actin, and a smooth muscle-myosin heavy chain in vitro. In vivo, the thickness of LES in the experiment rats was much thicker than those in the controlled groups. This result indicated that ADSCs mixed with RSF solution might contribute to the regeneration of the LES, thus reducing the occurrence of GERD.
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Affiliation(s)
- Daxu Zhang
- Department of Hepatobiliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Zhanbo Wang
- Department of Pathology, Chinese PLA General Hospital, Beijing, China
| | - Lianjun Ma
- Endoscopy Center, China-Japan Union Hospital of Jilin University, Changchun, Jilin, China
| | - Lijuan Xu
- Department of Gastroenterology, Beijing Tiantan Hospital, Capital Medical University, Beijing, China
| | - Suna Fan
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, College of Materials Science and Engineering, Donghua University, Shanghai, China
| | - Yinan Su
- Department of Hepatobiliary Surgery, Chinese PLA General Hospital, Beijing, China
| | - Xiaonan Shi
- The Second Medical Center and National Clinical Research Center of Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Jingjing Hu
- The Second Medical Center and National Clinical Research Center of Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Shuo Zhao
- The Second Medical Center and National Clinical Research Center of Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - WeiLong Li
- The Second Medical Center and National Clinical Research Center of Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
| | - Enqiang Linghu
- Department of Gastroenterology, The First Medical Center of Chinese PLA General Hospital, Beijing, China
- *Correspondence: Enqiang Linghu, ; Li Yan,
| | - Li Yan
- The Second Medical Center and National Clinical Research Center of Geriatric Diseases, Chinese PLA General Hospital, Beijing, China
- *Correspondence: Enqiang Linghu, ; Li Yan,
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Enhancement of connexin30.3 expression in mouse embryonic stem cell line EB3 in response to cell-cell contacts. Hum Cell 2019; 32:95-102. [PMID: 30674001 DOI: 10.1007/s13577-018-00235-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Accepted: 12/13/2018] [Indexed: 02/06/2023]
Abstract
To clarify the potential role of gap junction in cell-cell contact response, the expression of connexin30.3 gene (Cx30.3), a specifically expressed isoform in undifferentiated state of mouse embryonic stem (ES) cell line EB3 was investigated under different cell-cell contact conditions. ES cells were cultured by hanging drop culture method to increase cell-cell contact frequency. As control, a single cell culture was conducted. After culture for 12 h, the Cx30.3 expression level in hanging drop culture reached 1.73-fold that of the control (p < 0.001). By contrast, connexin43 gene (Cx43), a ubiquitously expressed gene, showed no difference between both cultures. The experiment of E-cadherin inhibition and β-catenin knockdown suggested the action of E-cadherin upstream of the Cx30.3 regulating pathway. The cell-cell contacts with different cell lines such as HeLa cells and B16/BL6 caused no effect on the Cx30.3 in ES cells. These suggest a potential role of Cx30.3 as a cell-cell contact signal mediator partially regulated by E-cadherin signaling.
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