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December 18, 2008DevelopmentOpen Access

Cardiac-specific inactivation of Prox1 in mice disrupts sarcomeric protein expression and localization, causing gross myofibril disarray and growth-retarded hearts.

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Why the study?

What is the role of Prox1 in maintaining muscle structure and growth in the developing murine heart?

Population

Murine model of the developing heart

Design

Preclinical

Key result

Cardiac-specific inactivation of Prox1 in mice disrupts sarcomeric protein expression and localization, causing gross myofibril disarray and growth-retarded hearts.

Authors

CRCatherine A. RisebroRSRichelle G. SearlesAMAthalie A. D. Melville

Discussion

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Overview

Prox1 maintains sarcomere integrity in developing mouse hearts; leaves open its role in human cardiomyopathy and requires validation in higher models.

Structured PICO

What is the role of Prox1 in maintaining muscle structure and growth in the developing murine heart?

P
Population
Murine model of the developing heart
I
Intervention
Cardiac-specific inactivation of the homeobox transcription factor Prox1
O
Outcome
Expression and localisation of sarcomeric proteins, myofibril arrangement, and heart growthsurrogate

Prox1 is essential for maintaining sarcomere integrity and enabling fetal cardiomyocyte hypertrophy through direct transcriptional regulation of structural proteins.

Cite This Study

Risebro et al. (2008) studied Congenital heart disease and cardiomyopathy. Cardiac-specific inactivation of Prox1 was evaluated on Expression and localisation of sarcomeric proteins, myofibril disarray, and heart growth. Cardiac-specific inactivation of Prox1 in mice disrupts sarcomeric protein expression and localization, causing gross myofibril disarray and growth-retarded hearts.

synapsesocial.com/papers/6aa04117fbf86070e0176d01https://doi.org/10.1242/dev.030007
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Also Consider

Synapse has enriched 5 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1Loss of Prox1 in striated muscle causes slow to fast skeletal muscle fiber conversion and dilated cardiomyopathy2014 · 54 citations
  2. 2PROX1 Inhibits PDGF-B Expression to Prevent Myxomatous Degeneration of Heart Valves2023 · 18 citations
  3. 3PROX1 inhibits PDGF-B expression to prevent myxomatous degeneration of heart valves2023 · 2 citations
  4. 4Epistatic Rescue of Nkx2.5 Adult Cardiac Conduction Disease Phenotypes by Prospero-Related Homeobox Protein 1 and HDAC32012 · 42 citations
  5. 5Molecular Mechanism of Cardiac Hypertrophy and Development2001 · 46 citations