Calreticulin and the Heart

Calreticulin is an endoplasmic Ca<sup>2+</sup> binding protein and molecular chaperone. As a cardiac embryonic gene, calreticulin is essential for heart development. The protein supports Ca<sup>2+</sup>-dependent signaling events that are critical to cardiomyocyte differentia...

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Main Authors: Jody Groenendyk, Wen-An Wang, Alison Robinson, Marek Michalak
Format: Article
Language:English
Published: MDPI AG 2022-05-01
Series:Cells
Subjects:
Online Access:https://www.mdpi.com/2073-4409/11/11/1722
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author Jody Groenendyk
Wen-An Wang
Alison Robinson
Marek Michalak
author_facet Jody Groenendyk
Wen-An Wang
Alison Robinson
Marek Michalak
author_sort Jody Groenendyk
collection DOAJ
description Calreticulin is an endoplasmic Ca<sup>2+</sup> binding protein and molecular chaperone. As a cardiac embryonic gene, calreticulin is essential for heart development. The protein supports Ca<sup>2+</sup>-dependent signaling events that are critical to cardiomyocyte differentiation and cardiogenesis. The increased expression of calreticulin and endoplasmic reticulum/sarcoplasmic reticulum Ca<sup>2+</sup> capacity produces cardiomyocytes with enhanced efficiency, and detrimental mechanical stretching of cardiac fibroblasts, leading to cardiac pathology. Deletion of the calreticulin gene in adult cardiomyocytes results in left ventricle dilation, an impaired electrocardiogram, and heart failure. These observations indicate that a well-adjusted endoplasmic reticulum and calreticulin-dependent Ca<sup>2+</sup> pool in cardiomyocytes are critical for the maintenance of proper cardiac function.
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spelling doaj.art-9d7bf7d70d934b4786785f928cbf15562023-11-23T13:51:43ZengMDPI AGCells2073-44092022-05-011111172210.3390/cells11111722Calreticulin and the HeartJody Groenendyk0Wen-An Wang1Alison Robinson2Marek Michalak3Department of Biochemistry, University of Alberta, Edmonton, AB T6G 1H7, CanadaDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 1H7, CanadaDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 1H7, CanadaDepartment of Biochemistry, University of Alberta, Edmonton, AB T6G 1H7, CanadaCalreticulin is an endoplasmic Ca<sup>2+</sup> binding protein and molecular chaperone. As a cardiac embryonic gene, calreticulin is essential for heart development. The protein supports Ca<sup>2+</sup>-dependent signaling events that are critical to cardiomyocyte differentiation and cardiogenesis. The increased expression of calreticulin and endoplasmic reticulum/sarcoplasmic reticulum Ca<sup>2+</sup> capacity produces cardiomyocytes with enhanced efficiency, and detrimental mechanical stretching of cardiac fibroblasts, leading to cardiac pathology. Deletion of the calreticulin gene in adult cardiomyocytes results in left ventricle dilation, an impaired electrocardiogram, and heart failure. These observations indicate that a well-adjusted endoplasmic reticulum and calreticulin-dependent Ca<sup>2+</sup> pool in cardiomyocytes are critical for the maintenance of proper cardiac function.https://www.mdpi.com/2073-4409/11/11/1722endoplasmic reticulumchaperonecalreticulincalcium
spellingShingle Jody Groenendyk
Wen-An Wang
Alison Robinson
Marek Michalak
Calreticulin and the Heart
Cells
endoplasmic reticulum
chaperone
calreticulin
calcium
title Calreticulin and the Heart
title_full Calreticulin and the Heart
title_fullStr Calreticulin and the Heart
title_full_unstemmed Calreticulin and the Heart
title_short Calreticulin and the Heart
title_sort calreticulin and the heart
topic endoplasmic reticulum
chaperone
calreticulin
calcium
url https://www.mdpi.com/2073-4409/11/11/1722
work_keys_str_mv AT jodygroenendyk calreticulinandtheheart
AT wenanwang calreticulinandtheheart
AT alisonrobinson calreticulinandtheheart
AT marekmichalak calreticulinandtheheart