Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle

<p>Abstract</p> <p>Background</p> <p>Loss of functional Myostatin results in a dramatic increase in skeletal muscle mass. It is unknown what role miRNAs play in Myostatin mediated repression of skeletal muscle mass. We hypothesized that Myostatin genotype would be assoc...

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Main Authors: Cheng Ye, Rachagani Satyanarayana, Reecy James M
Format: Article
Language:English
Published: BMC 2010-11-01
Series:BMC Research Notes
Online Access:http://www.biomedcentral.com/1756-0500/3/297
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author Cheng Ye
Rachagani Satyanarayana
Reecy James M
author_facet Cheng Ye
Rachagani Satyanarayana
Reecy James M
author_sort Cheng Ye
collection DOAJ
description <p>Abstract</p> <p>Background</p> <p>Loss of functional Myostatin results in a dramatic increase in skeletal muscle mass. It is unknown what role miRNAs play in Myostatin mediated repression of skeletal muscle mass. We hypothesized that Myostatin genotype would be associated with the differential expression of miRNAs in skeletal muscle.</p> <p>Findings</p> <p>Loss of functional Myostatin resulted in a significant increase (p < .001) in miR-1, miR-133a, miR-133b, and miR-206 expression. In contrast, Myostatin genotype had no effect (P > .2) on miR-24 expression level. Myostatin genotype did not affect the expression level of MyoD or Myogenin (P > 0.5).</p> <p>Conclusions</p> <p>Myostatin may regulates the expression of miRNAs such as <it>miR-133a</it>, <it>miR-133b</it>, <it>miR-1</it>, and <it>miR-206 </it>in skeletal muscle as it has been observed that the expression of those miRNAs are significantly higher in myostatin null mice compared to wild type and heterozygous mice. In contrast, expression of myogenic factors such as MyoD or Myogenin has not been affected by myostatin in the muscle tissue.</p>
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spelling doaj.art-51d3710debe04d2ba43bce0dfaf81d6b2022-12-22T01:00:22ZengBMCBMC Research Notes1756-05002010-11-013129710.1186/1756-0500-3-297Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscleCheng YeRachagani SatyanarayanaReecy James M<p>Abstract</p> <p>Background</p> <p>Loss of functional Myostatin results in a dramatic increase in skeletal muscle mass. It is unknown what role miRNAs play in Myostatin mediated repression of skeletal muscle mass. We hypothesized that Myostatin genotype would be associated with the differential expression of miRNAs in skeletal muscle.</p> <p>Findings</p> <p>Loss of functional Myostatin resulted in a significant increase (p < .001) in miR-1, miR-133a, miR-133b, and miR-206 expression. In contrast, Myostatin genotype had no effect (P > .2) on miR-24 expression level. Myostatin genotype did not affect the expression level of MyoD or Myogenin (P > 0.5).</p> <p>Conclusions</p> <p>Myostatin may regulates the expression of miRNAs such as <it>miR-133a</it>, <it>miR-133b</it>, <it>miR-1</it>, and <it>miR-206 </it>in skeletal muscle as it has been observed that the expression of those miRNAs are significantly higher in myostatin null mice compared to wild type and heterozygous mice. In contrast, expression of myogenic factors such as MyoD or Myogenin has not been affected by myostatin in the muscle tissue.</p>http://www.biomedcentral.com/1756-0500/3/297
spellingShingle Cheng Ye
Rachagani Satyanarayana
Reecy James M
Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
BMC Research Notes
title Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
title_full Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
title_fullStr Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
title_full_unstemmed Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
title_short Myostatin genotype regulates muscle-specific miRNA expression in mouse pectoralis muscle
title_sort myostatin genotype regulates muscle specific mirna expression in mouse pectoralis muscle
url http://www.biomedcentral.com/1756-0500/3/297
work_keys_str_mv AT chengye myostatingenotyperegulatesmusclespecificmirnaexpressioninmousepectoralismuscle
AT rachaganisatyanarayana myostatingenotyperegulatesmusclespecificmirnaexpressioninmousepectoralismuscle
AT reecyjamesm myostatingenotyperegulatesmusclespecificmirnaexpressioninmousepectoralismuscle