Diabetic cardiomyopathy (DCM) is a myocardial disorder resulting from glucose metabolism dysfunction, leading to structural and functional heart abnormalities independent of common cardiovascular conditions. This study explores the impact of Mammalian Sterile20-like Kinase 1 (Mst1) and Nuclear Factor E2-Related Factor 2 (Nrf2) pathways on autophagy in type 2 diabetic mice. By employing Mst1 knockout and Nrf2 activation, improvements in cardiac function reduced myocardial fibrosis, and decreased cardiomyocyte apoptosis was observed, with enhanced autophagy noted in Mst1 knockout mice further augmented by Nrf2 activation. The Mst1/Nrf2 pathway demonstrates a protective effect by regulating autophagy-related proteins, offering a potential therapeutic avenue for treating DCM in type 2 diabetes.
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http://dx.doi.org/10.1016/j.cellsig.2025.111717 | DOI Listing |
Cell Signal
March 2025
Department of Pathophysiology, Qiqihar Medical College, Qiqihar 161006, China; Qiqihar Medical College, Key Laboratory of Drug Food Homologous Resources and Metabolic Disease Prevention and Treatment in Heilongjiang Province, Qiqihar 161006, China. Electronic address:
Diabetic cardiomyopathy (DCM) is a myocardial disorder resulting from glucose metabolism dysfunction, leading to structural and functional heart abnormalities independent of common cardiovascular conditions. This study explores the impact of Mammalian Sterile20-like Kinase 1 (Mst1) and Nuclear Factor E2-Related Factor 2 (Nrf2) pathways on autophagy in type 2 diabetic mice. By employing Mst1 knockout and Nrf2 activation, improvements in cardiac function reduced myocardial fibrosis, and decreased cardiomyocyte apoptosis was observed, with enhanced autophagy noted in Mst1 knockout mice further augmented by Nrf2 activation.
View Article and Find Full Text PDFClin Transl Med
March 2025
Department of Pediatrics, Nanfang Hospital, Southern Medical University, Guangzhou, China.
Introduction: Nephronophthisis (NPH) is an autosomal recessive interstitial cystic kidney disease, which is the most common genetic cause of end-stage renal disease (ESRD) in childhood. The Hippo pathway is regulated by the cilium and has been suggested to be linked to NPH. The aim of the study was to investigate the involvement of Hippo pathway in the pathogenesis of nphp1 defect-associated NPH (NPH1).
View Article and Find Full Text PDFNat Commun
February 2025
Department of Molecular Genetics, Institute of Biomedical Science, Kansai Medical University, Osaka, Japan.
The leukocyte integrin LFA1 is indispensable for immune responses, orchestrating lymphocyte trafficking and adhesion. While LFA1 activation induces LFA1 clustering at the cell contact surface via outside-in signaling, the regulatory mechanisms remain unclear. Here, we uncovered a previously hidden function of the autophagosome component LC3 beyond its role in autophagy by bridging two seemingly unrelated pathways: LFA1 transport and autophagosome transport.
View Article and Find Full Text PDFJ Mol Cell Cardiol
February 2025
Department of Cell Biology and Molecular Medicine, Cardiovascular Research Institute, Rutgers New Jersey Medical School, USA. Electronic address:
Heart failure remains a leading cause of morbidity and mortality worldwide. The evolutionarily conserved Hippo-Yap signaling pathway regulates cardiac responses to stress and progression to heart failure. Mst1 and Mst2 are the core Hippo pathway kinases, yet their role within chronically stressed cardiomyocytes remains largely unknown.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
February 2025
Department of Biological Sciences, College of Liberal Arts and Sciences, Wayne State University, Detroit, MI 48202.
The mammalian Hippo kinases, MST1 and MST2, regulate organ development and suppress tumor formation by balancing cell proliferation and death. In macrophages, inflammasomes detect molecular patterns from invading pathogens or damaged host cells and trigger programmed cell death. In addition to lytic pyroptosis, the signatures associated with apoptosis are induced by inflammasome activation, but how the inflammasomes coordinate different cell death processes remains unclear.
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