Related Experiment Video
Updated: Mar 19, 2026
In vitro Assessment of Myocardial Protection following Hypothermia-Preconditioning in a Human Cardiac Myocytes Model
Published on: October 27, 2020
Data on the gene expression of cardiomyocyte exposed to hypothermia
Jian Zhang1, Xiaodong Xue1, Yinli Xu1
1Department of Cardiovascular Surgery, General Hospital of Shenyang Military Area Command, No. 83, Wenhua Road, Shenhe District, Shenyang City, Liaoning 110016, China.
Insights
Hypothermia, used in surgery, was found to inhibit cardiomyocyte proliferation. This study details the transcription factors involved in regulating gene expression during hypothermia.
Area of Science:
- Cardiovascular Biology
- Molecular Mechanisms of Disease
- Surgical Hypothermia
Background:
- Hypothermia is a common practice in cardiac and neurosurgery.
- The molecular underpinnings of hypothermia's effects on cardiomyocytes remain largely unexplored.
- Previous work characterized transcriptome responses to hypothermia in cardiomyocytes.
Purpose of the Study:
- To investigate the impact of hypothermia on cardiomyocyte proliferation in vitro.
- To identify and detail the transcription factors regulating gene expression changes induced by hypothermia.
Main Methods:
- In vitro cell culture of cardiomyocytes.
- Analysis of gene expression patterns under hypothermic conditions.
- Identification and characterization of key transcription factors.
Main Results:
- Hypothermia significantly inhibited the proliferation of cardiomyocyte cells in vitro.
- Specific transcription factors were identified as key regulators of differentially expressed genes during hypothermia.
- Detailed molecular pathways influenced by hypothermia were elucidated.
Conclusions:
- Hypothermia exerts an inhibitory effect on cardiomyocyte proliferation.
- Transcription factor regulation plays a critical role in the cellular response to hypothermia.
- Understanding these molecular mechanisms can inform clinical applications of hypothermia in surgery.
Abstract:
Hypothermia is widely used in neurosurgery and cardiac surgeries. However, little is known about the underlying molecular mechanisms. We previously reported that the transcriptome responses of cardiomyocyte exposed to hypothermia, "The transcriptome responses of cardiomyocyte exposed to hypothermia" [4]. Herein, we provide the hypothermia inhibited proliferation of cardiomyocyte cells in vitro and the details of transcription factors in regulation of differentially expressed genes.
