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Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge ...
Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics

상세정보

자료유형  
 학위논문 서양
최종처리일시  
20260202104805
ISBN  
9798290931876
DDC  
641
저자명  
Keng, Boon Hong.
서명/저자  
Phenotypic Assessment of Turkey Satellite Cells and Muscle Tissue Under Thermal Challenge Using Metabolomics
발행사항  
[Sl] : Michigan State University, 2025
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2025
형태사항  
168 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-02, Section: B.
주기사항  
Advisor: Strasburg, Gale M.
학위논문주기  
Thesis (Ph.D.)--Michigan State University, 2025.
초록/해제  
요약Climate-induced thermal stress during early post-hatch development poses a significant threat to commercial turkey production, particularly in modern genetic lines selected for rapid growth and high breast muscle yield. The first week post-hatch is a critical window for muscle development, as satellite cells are highly active during this period and contribute to long-term muscle structure and performance. Satellite cells are responsible for postnatal muscle fiber growth and regeneration, and their function is highly sensitive to environmental conditions. Disruption during this phase may alter their proliferation and differentiation capacity, leading to compromised muscle development and reduced meat quality. This study employed an untargeted metabolomics approach to comprehensively characterize the effects of heat and cold stress on satellite cell metabolism during both proliferation and differentiation from two turkey lines, as well as in pectoralis major tissue of 3-day-old poults.In proliferated satellite cells, heat stress induced an anabolic metabolic profile characterized by elevated amino acids, purine intermediates, and lipid signaling molecules. This reflected enhanced protein synthesis, nucleotide biosynthesis, and growth signaling, along with oxidative stress markers that indicated increased energy turnover and stress adaptation. In contrast, cold stress led to broad metabolic suppression in proliferated satellite cells, with notable decreases in nucleotides, membrane lipids, energy cofactors, and amino acids. This profile suggested a shift toward a quiescent or stress-conserved state with impaired biosynthesis and energy production, potentially limiting the expansion of the satellite cell pool during this critical period.Differentiated satellite cells exhibited a distinct metabolic phenotype in response to heat stress, marked by elevated mitochondrial activity, lipid remodeling, and redox regulation. Notably, there was significant upregulation of nucleotide biosynthesis and salvage pathways, calcium mobilizing metabolites, amino acids involved in protein synthesis and redox buffering, and fatty acid oxidation intermediates. These findings suggest that heat stress promotes terminal differentiation by supporting transcription, membrane expansion, and mitochondrial oxidative phosphorylation, albeit with the risk of increased oxidative stress. Cold stress, on the other hand, induced widespread metabolic downregulation in differentiated cells. Suppression of nucleotide metabolism, energy cofactors, calcium signaling molecules, and membrane lipids indicated a global reduction in transcriptional activity, mitochondrial function, and membrane remodeling. These alterations likely impair myotube formation and compromise the structural maturation of muscle fibers.In 3-day-old turkey poults' pectoralis major tissue, heat and cold stress produced more selective shifts in metabolism. Heat stress elicited changes in lipid species associated with membrane remodeling and inflammation, as well as elevated amino acids indicative of a compensatory or adaptive growth response. Cold stress led to more subtle reductions in energy metabolites and biosynthetic intermediates, consistent with growth suppression during early life.Together, these findings demonstrate that heat and cold stress drive markedly different metabolic programs in satellite cells and muscle tissue depending on developmental stage and genetic background. Heat stress generally enhances metabolic activity, supporting growth and differentiation but with oxidative risks, while cold stress suppresses key biosynthetic and energetic pathways, potentially limiting muscle development. These insights provide a mechanistic understanding of how early thermal stress influence muscle growth and may inform strategies to mitigate factors that affects meat quality in commercial turkey production.
일반주제명  
Food science
일반주제명  
Animal sciences
일반주제명  
Biochemistry
일반주제명  
Nutrition
키워드  
Cold stress
키워드  
Heat stress
키워드  
Live turkey
키워드  
Metabolomics
키워드  
Satellite cells
키워드  
Thermal challenge
기타저자  
Michigan State University Food Science - Doctor of Philosophy
기본자료저록  
Dissertations Abstracts International. 87-02B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aKeng,  Boon  Hong.▼0(orcid)0009-0009-5177-3891
■24510▼aPhenotypic  Assessment  of  Turkey  Satellite  Cells  and  Muscle  Tissue  Under  Thermal  Challenge  Using  Metabolomics
■260    ▼a[Sl]▼bMichigan  State  University▼c2025
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2025
■300    ▼a168  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-02,  Section:  B.
■500    ▼aAdvisor:  Strasburg,  Gale  M.
■5021  ▼aThesis  (Ph.D.)--Michigan  State  University,  2025.
■520    ▼aClimate-induced  thermal  stress  during  early  post-hatch  development  poses  a  significant  threat  to  commercial  turkey  production,  particularly  in  modern  genetic  lines  selected  for  rapid  growth  and  high  breast  muscle  yield.  The  first  week  post-hatch  is  a  critical  window  for  muscle  development,  as  satellite  cells  are  highly  active  during  this  period  and  contribute  to  long-term  muscle  structure  and  performance.  Satellite  cells  are  responsible  for  postnatal  muscle  fiber  growth  and  regeneration,  and  their  function  is  highly  sensitive  to  environmental  conditions.  Disruption  during  this  phase  may  alter  their  proliferation  and  differentiation  capacity,  leading  to  compromised  muscle  development  and  reduced  meat  quality.  This  study  employed  an  untargeted  metabolomics  approach  to  comprehensively  characterize  the  effects  of  heat  and  cold  stress  on  satellite  cell  metabolism  during  both  proliferation  and  differentiation  from  two  turkey  lines,  as  well  as  in  pectoralis  major  tissue  of  3-day-old  poults.In  proliferated  satellite  cells,  heat  stress  induced  an  anabolic  metabolic  profile  characterized  by  elevated  amino  acids,  purine  intermediates,  and  lipid  signaling  molecules.  This  reflected  enhanced  protein  synthesis,  nucleotide  biosynthesis,  and  growth  signaling,  along  with  oxidative  stress  markers  that  indicated  increased  energy  turnover  and  stress  adaptation.  In  contrast,  cold  stress  led  to  broad  metabolic  suppression  in  proliferated  satellite  cells,  with  notable  decreases  in  nucleotides,  membrane  lipids,  energy  cofactors,  and  amino  acids.  This  profile  suggested  a  shift  toward  a  quiescent  or  stress-conserved  state  with  impaired  biosynthesis  and  energy  production,  potentially  limiting  the  expansion  of  the  satellite  cell  pool  during  this  critical  period.Differentiated  satellite  cells  exhibited  a  distinct  metabolic  phenotype  in  response  to  heat  stress,  marked  by  elevated  mitochondrial  activity,  lipid  remodeling,  and  redox  regulation.  Notably,  there  was  significant  upregulation  of  nucleotide  biosynthesis  and  salvage  pathways,  calcium mobilizing  metabolites,  amino  acids  involved  in  protein  synthesis  and  redox  buffering,  and  fatty  acid  oxidation  intermediates.  These  findings  suggest  that  heat  stress  promotes  terminal  differentiation  by  supporting  transcription,  membrane  expansion,  and  mitochondrial  oxidative  phosphorylation,  albeit  with  the  risk  of  increased  oxidative  stress.  Cold  stress,  on  the  other  hand,  induced  widespread  metabolic  downregulation  in  differentiated  cells.  Suppression  of  nucleotide  metabolism,  energy  cofactors,  calcium  signaling  molecules,  and  membrane  lipids  indicated  a  global  reduction  in  transcriptional  activity,  mitochondrial  function,  and  membrane  remodeling.  These  alterations  likely  impair  myotube  formation  and  compromise  the  structural  maturation  of  muscle  fibers.In  3-day-old  turkey  poults'  pectoralis  major  tissue,  heat  and  cold  stress  produced  more  selective  shifts  in  metabolism.  Heat  stress  elicited  changes  in  lipid  species  associated  with  membrane  remodeling  and  inflammation,  as  well  as  elevated  amino  acids  indicative  of  a  compensatory  or  adaptive  growth  response.  Cold  stress  led  to  more  subtle  reductions  in  energy  metabolites  and  biosynthetic  intermediates,  consistent  with  growth  suppression  during  early  life.Together,  these  findings  demonstrate  that  heat  and  cold  stress  drive  markedly  different  metabolic  programs  in  satellite  cells  and  muscle  tissue  depending  on  developmental  stage  and  genetic  background.  Heat  stress  generally  enhances  metabolic  activity,  supporting  growth  and  differentiation  but  with  oxidative  risks,  while  cold  stress  suppresses  key  biosynthetic  and  energetic  pathways,  potentially  limiting  muscle  development.  These  insights  provide  a  mechanistic  understanding  of  how  early  thermal  stress  influence  muscle  growth  and  may  inform  strategies  to  mitigate  factors  that  affects  meat  quality  in  commercial  turkey  production.
■590    ▼aSchool  code:  0128.
■650  4▼aFood  science
■650  4▼aAnimal  sciences
■650  4▼aBiochemistry
■650  4▼aNutrition
■653    ▼aCold  stress
■653    ▼aHeat  stress
■653    ▼aLive  turkey
■653    ▼aMetabolomics
■653    ▼aSatellite  cells
■653    ▼aThermal  challenge
■690    ▼a0359
■690    ▼a0475
■690    ▼a0487
■690    ▼a0570
■71020▼aMichigan  State  University▼bFood  Science  -  Doctor  of  Philosophy.
■7730  ▼tDissertations  Abstracts  International▼g87-02B.
■790    ▼a0128
■791    ▼aPh.D.
■792    ▼a2025
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17358884▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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