scholarly journals The effect of nutrient restriction and syndecan-4 or glypican-1 knockdown on the differentiation of turkey pectoralis major satellite cells differing in age and growth selection

2019 ◽  
Vol 98 (11) ◽  
pp. 6078-6090
Author(s):  
Sandra G Velleman ◽  
Daniel L Clark ◽  
Jeffrey R Tonniges
Keyword(s):  
Satellite Cells ◽  
Pectoralis Major ◽  
Age And Growth ◽  
Nutrient Restriction ◽  
Major Satellite ◽  
Growth Selection

scholarly journals Nutrient restriction and migration of turkey satellite cells

2019 ◽  
Vol 98 (12) ◽  
pp. 7090-7096
Author(s):  
Jeffrey R. Tonniges ◽  
Sandra G. Velleman
Keyword(s):  
Satellite Cells ◽  
Nutrient Restriction ◽  
And Migration

scholarly journals Method using a co-culture system with high-purity intramuscular preadipocytes and satellite cells from chicken pectoralis major muscle

2018 ◽  
Vol 97 (10) ◽  
pp. 3691-3697 ◽  
Author(s):  
H.X. Cui ◽  
L.P. Guo ◽  
G.P. Zhao ◽  
R.R. Liu ◽  
Q.H. Li ◽  
...  
Keyword(s):  
Satellite Cells ◽  
High Purity ◽  
Culture System ◽  
Pectoralis Major Muscle ◽  
Pectoralis Major

194 Avian Breast Muscle Development and Growth: Influence of Temperature on Growth Mediated by Breast Muscle Adult Myoblasts (Satellite Cells)

2021 ◽  
Vol 99 (Supplement_3) ◽  
pp. 104-104
Author(s):  
Sandra G Velleman
Keyword(s):  
Stem Cell ◽  
Thermal Stress ◽  
Ambient Temperature ◽  
Satellite Cell ◽  
Satellite Cells ◽  
Pectoralis Major Muscle ◽  
Muscle Growth ◽  
Pectoralis Major ◽  
Breast Muscle ◽  
Stem Cell Population

Abstract Newly hatched poults and chicks have immature thermoregulatory systems and are not able to maintain a constant body temperature when exposed to hot or cold ambient temperatures. During the immediate posthatch period during handling and transport, poults and chicks are commonly exposed to acute thermal conditions. This immediate posthatch period is when satellite cells, adult myoblasts, have their highest period of mitotic activity and are sensitive to extrinsic stimuli including ambient temperature. Variable temperatures can have long-lasting positive or negative effects on skeletal muscle growth. Satellite cells are a self-renewing multipotential stem cell population located between the basement membrane and sarcolemma of muscle fibers. They are responsible for all posthatch growth of muscle through muscle fiber hypertrophy. Results have shown that satellite cells are more sensitive to thermal stress during the period of satellite cell proliferation than during differentiation into multinucleated myotubes, and that pectoralis major muscle satellite cells from growth-selected lines of chickens and turkeys are more sensitive to temperature. Recent findings have shown that the rapamycin, mTOR, signaling pathway which is involved in muscle growth through hypertrophy is differentially affected by thermal stress in a growth-dependent manner. Since satellite cells are a stem cell population, they can also transdifferentiate into other cellular lineages. Anaerobic muscles like the pectoralis major muscle are more prone to converting to an adipogenic lineage compared to aerobic muscles like the biceps femoris. Thus, variable temperatures can impact the intramuscular fat content of the breast muscle. Taken together, changes in ambient temperature alter satellite cell function causing long-term effects on growth, morphological organization, and composition of the pectoralis major, breast, muscle.

Comparison of Growth Factor Receptors and Metabolic Characteristics of Satellite Cells Derived from the Biceps Femoris and Pectoralis Major Muscles of the Turkey

1997 ◽  
Vol 105 (1) ◽  
pp. 114-120 ◽  
Author(s):  
D.C. McFarland ◽  
K.K. Gilkerson ◽  
J.E. Pesall ◽  
R.H. Wellenreiter ◽  
N.H. Ferrin ◽  
...  
Keyword(s):  
Growth Factor ◽  
Satellite Cells ◽  
Biceps Femoris ◽  
Growth Factor Receptors ◽  
Pectoralis Major ◽  
Metabolic Characteristics

scholarly journals Effect of Temperature and Selection for Growth on Intracellular Lipid Accumulation and Adipogenic Gene Expression in Turkey Pectoralis Major Muscle Satellite Cells

2021 ◽  
Vol 12 ◽  
Author(s):  
Jiahui Xu ◽  
Gale M. Strasburg ◽  
Kent M. Reed ◽  
Sandra G. Velleman
Keyword(s):  
Gene Expression ◽  
Thermal Stress ◽  
Satellite Cells ◽  
Lipid Accumulation ◽  
Lipid Synthesis ◽  
Pectoralis Major ◽  
Effect Of Temperature ◽  
Control Line ◽  
Intracellular Lipid ◽  
Adipogenic Gene

As multipotential stem cells, satellite cells (SCs) have the potential to express adipogenic genes resulting in lipid synthesis with thermal stress. The present study determined the effect of temperature on intracellular lipid synthesis and adipogenic gene expression in SCs isolated from the pectoralis major (p. major) muscle of 7-day-old fast-growing modern commercial (NC) turkeys compared to SCs from unselected slower-growing turkeys [Randombred Control Line 2 (RBC2)]. Since proliferating and differentiating SCs have different responses to thermal stress, three incubation strategies were used: (1) SCs proliferated at the control temperature of 38°C and differentiated at 43° or 33°C; (2) SCs proliferated at 43° or 33°C and differentiated at 38°C; or (3) SCs both proliferated and differentiated at 43°, 38°, or 33°C. During proliferation, lipid accumulation increased at 43°C and decreased at 33°C with the NC line showing greater variation than the RBC2 line. During proliferation at 43°C, peroxisome proliferator-activated receptor-γ (PPARγ) and neuropeptide-Y (NPY) expression was reduced to a greater extent in the NC line than the RBC2 line. At 33°C, expression of PPARγ, NPY, and CCAAT/enhancer-binding protein-β (C/EBPβ) was upregulated, but only in the RBC2 line. During differentiation, both lines showed greater changes in lipid accumulation and in C/EBPβ and NPY expression if the thermal challenge was initiated during proliferation. These data suggest that adipogenic gene expression is more responsive to thermal challenge in proliferating SCs than in differentiating SCs, and that growth-selection has increased temperature sensitivity of SCs, which may significantly affect breast muscle structure and composition.

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