HMEJ-mediated site-specific integration of a myostatin inhibitor increases skeletal muscle mass in porcine
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چکیده
منابع مشابه
Lower skeletal muscle mass in male transgenic mice with muscle-specific overexpression of myostatin.
Mutations in the myostatin gene are associated with hypermuscularity, suggesting that myostatin inhibits skeletal muscle growth. We postulated that increased tissue-specific expression of myostatin protein in skeletal muscle would induce muscle loss. To investigate this hypothesis, we generated transgenic mice that overexpress myostatin protein selectively in the skeletal muscle, with or withou...
متن کاملModulating skeletal muscle mass by postnatal, muscle-specific inactivation of the myostatin gene.
By using a conditional gene targeting approach exploiting the cre-lox system, we show that postnatal inactivation of the myostatin gene in striated muscle is sufficient to cause a generalized muscular hypertrophy of the same magnitude as that observed for constitutive myostatin knockout mice. This formally demonstrates that striated muscle is the production site of functional myostatin and that...
متن کاملInhibition of myostatin in adult mice increases skeletal muscle mass and strength.
A human therapeutic that specifically modulates skeletal muscle growth would potentially provide a benefit for a variety of conditions including sarcopenia, cachexia, and muscular dystrophy. Myostatin, a member of the TGF-beta family of growth factors, is a known negative regulator of muscle mass, as mice lacking the myostatin gene have increased muscle mass. Thus, an inhibitor of myostatin may...
متن کاملMyostatin and the control of skeletal muscle mass.
The mechanisms by which tissue size is controlled are poorly understood. Over 30 years ago, Bullough proposed the existence of chalones, which act as tissue-specific negative growth regulators. The recent discovery of myostatin suggests that negative regulation of tissue growth may be an important mechanism for controlling skeletal muscle mass and raises the possibility that growth inhibitors m...
متن کاملSkeletal muscle myostatin mRNA expression is fiber-type specific and increases during hindlimb unloading.
Transgenic mice lacking a functional myostatin (MSTN) gene demonstrate greater skeletal muscle mass resulting from muscle fiber hypertrophy and hyperplasia (McPherron, A. C., A. M. Lawler, and S.-J. Lee. Nature 387: 83-90, 1997). Therefore, we hypothesized that, in normal mice, MSTN may act as a negative regulator of muscle mass. Specifically, we hypothesized that the predominately slow (type I...
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ژورنال
عنوان ژورنال: Molecular Therapy - Nucleic Acids
سال: 2021
ISSN: 2162-2531
DOI: 10.1016/j.omtn.2021.06.011