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10.3389/fendo.2022.801260

http://scihub22266oqcxt.onion/10.3389/fendo.2022.801260
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35242109!8885996!35242109
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suck abstract from ncbi


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pmid35242109      Front+Endocrinol+(Lausanne) 2022 ; 13 (ä): 801260
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  • Identification of Crucial Genes and Key Functions in Type 2 Diabetic Hearts by Bioinformatic Analysis #MMPMID35242109
  • Huang X; Zhang KJ; Jiang JJ; Jiang SY; Lin JB; Lou YJ
  • Front Endocrinol (Lausanne) 2022[]; 13 (ä): 801260 PMID35242109show ga
  • Type 2 diabetes (T2D) patients with SARS-CoV-2 infection hospitalized develop an acute cardiovascular syndrome. It is urgent to elucidate underlying mechanisms associated with the acute cardiac injury in T2D hearts. We performed bioinformatic analysis on the expression profiles of public datasets to identify the pathogenic and prognostic genes in T2D hearts. Cardiac RNA-sequencing datasets from db/db or BKS mice (GSE161931) were updated to NCBI-Gene Expression Omnibus (NCBI-GEO), and used for the transcriptomics analyses with public datasets from NCBI-GEO of autopsy heart specimens with COVID-19 (5/6 with T2D, GSE150316), or dead healthy persons (GSE133054). Differentially expressed genes (DEGs) and overlapping homologous DEGs among the three datasets were identified using DESeq2. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes analyses were conducted for event enrichment through clusterProfile. The protein-protein interaction (PPI) network of DEGs was established and visualized by Cytoscape. The transcriptions and functions of crucial genes were further validated in db/db hearts. In total, 542 up-regulated and 485 down-regulated DEGs in mice, and 811 up-regulated and 1399 down-regulated DEGs in human were identified, respectively. There were 74 overlapping homologous DEGs among all datasets. Mitochondria inner membrane and serine-type endopeptidase activity were further identified as the top-10 GO events for overlapping DEGs. Cardiac CAPNS1 (calpain small subunit 1) was the unique crucial gene shared by both enriched events. Its transcriptional level significantly increased in T2D mice, but surprisingly decreased in T2D patients with SARS-CoV-2 infection. PPI network was constructed with 30 interactions in overlapping DEGs, including CAPNS1. The substrates Junctophilin2 (Jp2), Tnni3, and Mybpc3 in cardiac calpain/CAPNS1 pathway showed less transcriptional change, although Capns1 increased in transcription in db/db mice. Instead, cytoplasmic JP2 significantly reduced and its hydrolyzed product JP2NT exhibited nuclear translocation in myocardium. This study suggests CAPNS1 is a crucial gene in T2D hearts. Its transcriptional upregulation leads to calpain/CAPNS1-associated JP2 hydrolysis and JP2NT nuclear translocation. Therefore, attenuated cardiac CAPNS1 transcription in T2D patients with SARS-CoV-2 infection highlights a novel target in adverse prognostics and comprehensive therapy. CAPNS1 can also be explored for the molecular signaling involving the onset, progression and prognostic in T2D patients with SARS-CoV-2 infection.
  • |*Computational Biology[MESH]
  • |*SARS-CoV-2[MESH]
  • |Adult[MESH]
  • |Aged[MESH]
  • |Aged, 80 and over[MESH]
  • |Animals[MESH]
  • |COVID-19/*epidemiology[MESH]
  • |Calpain/genetics/physiology[MESH]
  • |Comorbidity[MESH]
  • |Diabetes Mellitus, Type 2/*epidemiology/*genetics/physiopathology[MESH]
  • |Diabetic Cardiomyopathies/*epidemiology/genetics/physiopathology[MESH]
  • |Humans[MESH]
  • |Male[MESH]
  • |Membrane Proteins/metabolism[MESH]
  • |Mice[MESH]
  • |Mice, Inbred C57BL[MESH]
  • |Middle Aged[MESH]
  • |Mitochondria, Heart/ultrastructure[MESH]
  • |Muscle Proteins/metabolism[MESH]
  • |Myocardium/chemistry/metabolism/ultrastructure[MESH]
  • |Prognosis[MESH]
  • |Sequence Analysis, RNA[MESH]


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