2. Academic Validation
  3. MMP9 is involved in HO-1-mediated upregulation of apical junctional complex in Caco-2 cells under oxygen-glucose deprivation

MMP9 is involved in HO-1-mediated upregulation of apical junctional complex in Caco-2 cells under oxygen-glucose deprivation

  • Biochem Biophys Res Commun. 2018 Mar 25;498(1):125-131. doi: 10.1016/j.bbrc.2018.02.045.
Yongqu Lu 1,  Jie An 2,  Yulin Liu 3,  Lehao Ren 1,  Li Zhang 4
Affiliations

Affiliations

  • 1 Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China.
  • 2 Department of Pharmacology, Shandong University School of Medicine, Jinan, 250012, Shandong, China.
  • 3 Department of Gastrointestinal Surgery, QianFoShan Hospital Affiliated to Shandong University, Jinan, 250014, Shandong, China.
  • 4 Department of Gastrointestinal Surgery, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, 250021, Shandong, China. Electronic address: [email protected].
PMID: 29425821 DOI: 10.1016/j.bbrc.2018.02.045
Abstract

Ischemia reperfusion injury is a critical factor in the recovery process after intestine trauma and the functional restoration of intestinal reconstruction. This study was the first to explore the expression of apical junctional complex (AJC) induced by heme oxygenase-1 (HO-1) in Caco-2 cells in oxygen-glucose deprivation (OGD) models. Here we showed that HO-1 was upregulated after OGD. Notably, activation of HO-1 largely enhanced the expression of AJC proteins including Claudin-4, E-cadherin and β-catenin in Caco-2 cells, but decreased the expression of matrix metalloproteinase 9 (MMP9). Knockdown of HO-1 attenuated the OGD-induced overexpression of AJC proteins but promoted the expression of MMP9. Interestingly, inhibition of MMP9 further enhanced AJC expression. These results suggest that HO-1 is involved in OGD-evoked upregulation of AJC proteins, which is partly mediated by MMP9 pathway. High expression of HO-1 may play an important role in the pathophysiological process of ischemia reperfusion injury and has potential clinical value for the treatment of intestine related diseases.

Keywords

Apical junctional complex; Heme oxygenase-1; Ischemia reperfusion injury; Matrix metalloproteinase 9.

Figures
Products
  • Cat. No.
    Product Name
    Description
    Target
    Research Area
  • HY-15768
    98.33%, MMP Inhibitor
    MMP