Temporal expression of growth factor genes during myogenesis of satellite cells derived from the biceps femoris and pectoralis major muscles of the chicken

Kocamiş, Hakan; McFarland, Douglas C.; Killefer, J.

doi:10.1002/1097-4652(200101)186:1<146::aid-jcp1014>3.0.co;2-q

Cited by 57 publications

(35 citation statements)

References 39 publications

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“…before myoblast fusion and the appearance of myotubes. Several studies have described a similar expressional pattern respectively in chicken satellite cells and C2C12 myoblasts [11,24,43]. However, as in our satellite cell cultures, myostatin up-regulation was observed in C2C12 when fusion was already established [24].…”

Section: Differential Expression Between Developing Muscles Accordingsupporting

confidence: 74%

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Location of myostatin expression during bovine myogenesis in vivo and in vitro

et al. 2003

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-Mutations in the myostatin gene lead to double-muscling in cattle indicating that it is a negative regulator of the total number of muscle fibres. Myostatin expression was analysed by RT-PCR in three developing bovine muscles. It decreased during differentiation in Semitendinosus and Biceps femoris, and increased in the late differentiating Masseter during gestation. A combination of in situ hybridisation and immuno-histochemical detection of myosin heavy chains (MHC) allowed us to locate the expression in myofibres containing only developmental MHC at different stages and in fast IIA fibres at the end of gestation. In vitro, myostatin was undetectable during proliferation, peaked at the onset of fusion and decreased during terminal differentiation. It was not detected in myotubes by in situ hybridisation. The inhibition of differentiation by BrdU prevented the decrease in expression. Our results show that the peak in myostatin expression coincides with early differentiation indicating a regulatory role in cattle myogenesis. myostatin [GDF8] / cattle / myogenesis / myoblast culture / in situ hybridisation

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Section: Differential Expression Between Developing Muscles Accordingsupporting

confidence: 74%

“…In humans and in chickens, there is no difference between fast and slow muscles in terms of their myostatin expression in vivo and in vitro [43,46]. In rodents, myostatin mRNA and protein levels are higher in fast than in slow muscles [20,22].…”

Section: The Location Of Myostatin Expression Within the Less Differementioning

confidence: 99%

Location of myostatin expression during bovine myogenesis in vivo and in vitro

et al. 2003

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“…In contrast, IGF-II gene expression was decreased in turkey satellite cells from proliferation to differentiation (Ernst et al, 1996). In addition, IGF-I expression was not detected in humans (Crown et al, 2000) or avian (Kocamis et al, 2001) satellite cells. The expression patterns of IGF for in vitro muscle cells suggested autocrine regulation of myogenesis by IGFs (Wang et al, 2011).…”

Section: Discussionmentioning

confidence: 79%

Association between DLK1 and IGF-I gene expression and meat quality in sheep

Su¹,

Sun²,

Li³

et al. 2014

Genet. Mol. Res.

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ABSTRACT. The aim of the present study was to detect delta-like 1 homolog (DLK1) and insulin-like growth factor-I (IGF-I) gene expression in the longissimus dorsi of Hu sheep at different growth stages and study the association between these genes and meat quality. The diameter and density of muscle fibers and tenderness of the longissimus dorsi were measured. Growth stage, but not sex, significantly affected DLK1 and IGF-I expression. DLK1 and IGF-I expression in the sheep longissimus dorsi gradually increased with growth, but also decreased during some periods. These results suggest that different growth stages significantly affect DLK1 and IGF-I gene expression in sheep muscle tissue. The expression of DLK1 and IGF-I genes were positively and significantly (P < 0.01) correlated with muscle fiber diameter and muscle fiber shear stress, and negatively and significantly (P < 0.01) correlated with muscle fiber density. Muscle fiber diameter was positively and significantly (P < 0.01) correlated with muscle fiber shear stress, and negatively and significantly (P < 0.01) correlated with muscle fiber density. In addition,

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“…For instance, transforming growth factor-b (TGFb) family members control diverse processes in the myoblast and satellite cells ranging from proliferation and fusion to differentiation, and the patterns of expression change dynamically in regenerating muscles to control sequential stages of muscle repair (Kollias and McDermott 2008). Illustrating a switch from an adaptive to a maladaptive mechanism, functional levels of the TGFb family member myostatin, a negative regulator of muscle mass, decline during active regeneration to permit satellite cell activation (Kirk et al 2000;Kocamis et al 2001). However, in chronic myopathic states, myostatin as well as TGFb itself are elevated coincident with fibrosis, and recent interventions to antagonize signaling have been noted to restore muscle function in mouse models of muscular dystrophies (Minetti et al 2006;Cohn et al 2007).…”

Section: Two Roads Diverged In a Wood And I-i Took The One Less Travmentioning

confidence: 99%

BAF60 A, B, and Cs of muscle determination and renewal

Puri

Mercola

2012

Genes Dev.

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Developmental biologists have defined many of the diffusible and transcription factors that control muscle differentiation, yet we still have only rudimentary knowledge of the mechanisms that dictate whether a myogenic progenitor cell forms muscle versus alternate lineages, including those that can be pathological in a state of disease or degeneration. Clues about the molecular basis for lineage determination in muscle progenitors are only now emerging from studies of chromatin modifications that avail myogenic genes for transcription, together with analysis of the composition and activities of the chromatin-modifying complexes themselves. Here we review recent progress on muscle determination and explore a unifying theme that environmental cues from the stem or progenitor niche control the selection of specific subunit variants of the switch/sucrose nonfermentable (SWI/SNF) chromatin-modifying complex, creating a combinatorial code that dictates whether cells adopt myogenic versus nonmyogenic cell fates. A key component of the code appears to be the mutually exclusive usage of the a, b, and c variants of the 60-kD structural subunit BAF60 (BRG1/BRM-associated factor 60), of which BAF60c is essential to activate both skeletal and cardiac muscle programs. Since chromatin remodeling governs myogenic fate, the combinatorial assembly of the SWI/SNF complex might be targeted to develop drugs aimed at the therapeutic reduction of compensatory fibrosis and fatty deposition in chronic muscular disorders.

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Temporal expression of growth factor genes during myogenesis of satellite cells derived from the biceps femoris and pectoralis major muscles of the chicken

Cited by 57 publications

References 39 publications

Location of myostatin expression during bovine myogenesis in vivo and in vitro

Location of myostatin expression during bovine myogenesis in vivo and in vitro

Association between DLK1 and IGF-I gene expression and meat quality in sheep

BAF60 A, B, and Cs of muscle determination and renewal

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