Obg-like ATPase 1 Genetic Deletion Leads to Dilated Cardiomyopathy in Mice and Structural Changes in Drosophila Heart: version 2
Affiliations
- 1 test
- 2 University of Alabama at Birmingham
Abstract
Cardiomyopathy, disease of the heart muscle, is a significant contributor to heart failure. The pathogenesis of cardiomyopathy is multifactorial and involves genetic, environmental, and lifestyle factors. Identifying and characterizing novel genes that contribute to cardiac pathophysiology are crucial for understanding cardiomyopathy and effective therapies.
In this study, we investigated the role of a novel gene, Obg-like ATPase 1 (Ola1), in cardiac pathophysiology using a cardiac-specific knockout mouse model as well as a Drosophila model. Our previous work demonstrated that OLA1 modulates the hypertrophic response of cardiomyocytes through the GSK-beta/beta-catenin signaling pathway. Furthermore, recent studies have suggested that OLA1 plays a critical role in organismal growth and development. For example, Ola1 null mice exhibit increased heart size and growth retardation. It is not known, however, if loss of function for Ola1 leads to dilated cardiomyopathy.
We generated cardiac-specific Ola1 knockout mice (OLA1-cKO) to evaluate the role of OLA1 in cardiac pathophysiology. We found that Ola1-cKO in mice leads to dilated cardiomyopathy (DCM) and left ventricular (LV) dysfunction. These mice developed severe LV dilatation, thinning of the LV wall, reduced LV function, and, in some cases, ventricular wall rupture and death. In Drosophila, RNAi-mediated knock-down specifically in developing heart cells led to the change in the structure of pericardial cells from round to elongated, and abnormal heart function. This also caused significant growth reduction and pupal lethality. Thus, our findings suggest that OLA1 is critical for cardiac homeostasis and that its deficiency leads to dilated cardiomyopathy and dysfunction. Furthermore, our study highlights the potential of the Ola1gene as a therapeutic target for dilated cardiomyopathy and heart failure.
test version 3
Keywords:
ATPase 1
Cardiomyopathy
Drosophila
Research Details
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How to cite this article:
testauthor testauthor; Prasanna Krishnamurthy (2026). Obg-like ATPase 1 Genetic Deletion Leads to Dilated Cardiomyopathy in Mice and Structural Changes in Drosophila Heart: version 2. , 1(1)
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Copyright:
© 2026 testauthor testauthor and Prasanna Krishnamurthy. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
*Correspondence:
testauthor testauthor, test – arnavpraveen@g.ucla.edu
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