Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure

Objective(s): The close relationship of proto-oncogenes to myocardial hypertrophy has long been recognized, and cardiac hypertrophy leads to heart failure (HF). However, whether proviral insertion of Moloney virus 3 kinase (Pim3), a proto-oncogene, contributes to cardiac hypertrophy in diabetes mell...

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Main Authors: Xiao Jin, Yi Ren, Li Wang, Hao Xie, Lu Huang, Juan Zhang, Zuo-Ying Hu
Format: Article
Language:English
Published: Mashhad University of Medical Sciences 2025-02-01
Series:Iranian Journal of Basic Medical Sciences
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Online Access:https://ijbms.mums.ac.ir/article_25278_c91eac3df255a46843b1b4df13c002df.pdf
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author Xiao Jin
Yi Ren
Li Wang
Hao Xie
Lu Huang
Juan Zhang
Zuo-Ying Hu
author_facet Xiao Jin
Yi Ren
Li Wang
Hao Xie
Lu Huang
Juan Zhang
Zuo-Ying Hu
author_sort Xiao Jin
collection DOAJ
description Objective(s): The close relationship of proto-oncogenes to myocardial hypertrophy has long been recognized, and cardiac hypertrophy leads to heart failure (HF). However, whether proviral insertion of Moloney virus 3 kinase (Pim3), a proto-oncogene, contributes to cardiac hypertrophy in diabetes mellitus (DM) remains unknown. This study aims to investigate whether Pim3 is involved in DM-induced cardiac hypertrophy and HF and to elucidate its underlying mechanisms.Materials and Methods: DM was induced in mice by intraperitoneal injection of streptozotocin. Cardiac function was evaluated by echocardiography, and cardiac hypertrophy was determined through histological analysis, quantitative real-time polymerase chain reaction, and western blotting. Silencing RNA transfection and lentivirus-mediated gene knockdown were performed both in vitro and in vivo. Transcriptional activity was analyzed using chromatin immunoprecipitation and luciferase reporter assay.Results: Compared with C57BL/6J mice, cardiac hypertrophy and dysfunction were observed in mice with DM. Pim3 mRNA and protein expression were significantly up-regulated in diabetic hearts and high glucose-cultured H9C2 cells. Yin Yang 1 (YY1), which translocated from the cytoplasm into the nucleus under hyperglycemia, bound to the Pim3 promoter and enhanced Pim3 transcriptional activity. Pim3 or YY1 knockdown profoundly reduced cell size and inhibited the mRNA and protein expression of cardiac hypertrophy markers, as well as markedly attenuating myocardial hypertrophy and cardiac dysfunction.Conclusion: Hyperglycemia induced nuclear translocation of YY1, leading to Pim3 up-regulation, eventually developing into cardiac hypertrophy and HF. Targeting YY1-Pim3 signaling may be a promising therapeutic avenue for DM-induced cardiac hypertrophy and HF.
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publisher Mashhad University of Medical Sciences
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spelling doaj-art-9f2754aca6084cbf910c219812bf008f2025-08-20T02:48:06ZengMashhad University of Medical SciencesIranian Journal of Basic Medical Sciences2008-38662008-38742025-02-0128224525310.22038/ijbms.2024.78688.1701625278Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failureXiao Jin0Yi Ren1Li Wang2Hao Xie3Lu Huang4Juan Zhang5Zuo-Ying Hu6Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaDepartment of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, ChinaObjective(s): The close relationship of proto-oncogenes to myocardial hypertrophy has long been recognized, and cardiac hypertrophy leads to heart failure (HF). However, whether proviral insertion of Moloney virus 3 kinase (Pim3), a proto-oncogene, contributes to cardiac hypertrophy in diabetes mellitus (DM) remains unknown. This study aims to investigate whether Pim3 is involved in DM-induced cardiac hypertrophy and HF and to elucidate its underlying mechanisms.Materials and Methods: DM was induced in mice by intraperitoneal injection of streptozotocin. Cardiac function was evaluated by echocardiography, and cardiac hypertrophy was determined through histological analysis, quantitative real-time polymerase chain reaction, and western blotting. Silencing RNA transfection and lentivirus-mediated gene knockdown were performed both in vitro and in vivo. Transcriptional activity was analyzed using chromatin immunoprecipitation and luciferase reporter assay.Results: Compared with C57BL/6J mice, cardiac hypertrophy and dysfunction were observed in mice with DM. Pim3 mRNA and protein expression were significantly up-regulated in diabetic hearts and high glucose-cultured H9C2 cells. Yin Yang 1 (YY1), which translocated from the cytoplasm into the nucleus under hyperglycemia, bound to the Pim3 promoter and enhanced Pim3 transcriptional activity. Pim3 or YY1 knockdown profoundly reduced cell size and inhibited the mRNA and protein expression of cardiac hypertrophy markers, as well as markedly attenuating myocardial hypertrophy and cardiac dysfunction.Conclusion: Hyperglycemia induced nuclear translocation of YY1, leading to Pim3 up-regulation, eventually developing into cardiac hypertrophy and HF. Targeting YY1-Pim3 signaling may be a promising therapeutic avenue for DM-induced cardiac hypertrophy and HF.https://ijbms.mums.ac.ir/article_25278_c91eac3df255a46843b1b4df13c002df.pdfcardiac hypertrophydiabetes mellitusheart failureproviral insertion of- moloney virus 3 kinaseyin yang 1
spellingShingle Xiao Jin
Yi Ren
Li Wang
Hao Xie
Lu Huang
Juan Zhang
Zuo-Ying Hu
Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
Iranian Journal of Basic Medical Sciences
cardiac hypertrophy
diabetes mellitus
heart failure
proviral insertion of- moloney virus 3 kinase
yin yang 1
title Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
title_full Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
title_fullStr Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
title_full_unstemmed Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
title_short Pim3 up-regulation by YY1 contributes to diabetes-induced cardiac hypertrophy and heart failure
title_sort pim3 up regulation by yy1 contributes to diabetes induced cardiac hypertrophy and heart failure
topic cardiac hypertrophy
diabetes mellitus
heart failure
proviral insertion of- moloney virus 3 kinase
yin yang 1
url https://ijbms.mums.ac.ir/article_25278_c91eac3df255a46843b1b4df13c002df.pdf
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