Promoting Muscle Regeneration through Adipose Signaling
通过脂肪信号促进肌肉再生
基本信息
- 批准号:10214535
- 负责人:
- 金额:$ 33.61万
- 依托单位:
- 依托单位国家:美国
- 项目类别:
- 财政年份:2019
- 资助国家:美国
- 起止时间:2019-07-22 至 2024-06-30
- 项目状态:已结题
- 来源:
- 关键词:AddressAdipocytesAdipose tissueAdjuvant TherapyAdoptedAmericanAnimal ModelAreaBiological AssayBiological ModelsBiologyBiopsyBrown FatCell Differentiation processCell RespirationCellsCellular AssayChronicChronic CareClinicalContralateralCuesCulture MediaDevelopmentDifferentiation AntigensDigestionDirect Lytic FactorsDiseaseExhibitsFatty acid glycerol estersFiberFollistatinGelGenetic TranscriptionGrowthHarvestHistologicHormonesHumanHydrogelsInflammatoryInjectableInjectionsInjuryIntramuscularKnock-outKnowledgeLinkMediatingMediator of activation proteinModelingMorbidity - disease rateMusMuscleMuscle WeaknessMuscle functionMuscle satellite cellMyopathyNatural regenerationNatureNon-Insulin-Dependent Diabetes MellitusOperative Surgical ProceduresParacrine CommunicationPathologicPathologyPathway interactionsPharmaceutical PreparationsPhenotypePhysiologyPopulationProductionProliferation MarkerPropertyQuality of lifeRehabilitation therapyResearchResistanceRoleRotator CuffScheduleSignal TransductionSourceSystemTherapeuticThinkingTimeTissuesTransplantationUp-RegulationWorkadipokinesautocrinediet and exerciseexperimental studyimprovedin vivomuscle regenerationmuscle strengthnanocompositenovelnovel therapeuticsparacrinephysically handicappedpreventprogenitorregenerativerehabilitative careresponserotator cuff tearsarcopeniasatellite cellstem cellstargeted treatmenttherapy developmenttranscription factortranscriptome sequencingtransplant model
项目摘要
PROJECT SUMMARY
Persistent muscle weakness and physical disability decrease quality of life for millions of Americans.
These physical limitations are linked with pathological accumulation of inter/intramuscular adipose tissue (IMAT)
across numerous populations and morbidities. This link combined with the resistance of IMAT accumulation to
standard diet and exercise remodeling cues points to IMAT as being a persistent and unaddressed clinical
problem, likely impeding rehabilitative efforts to maintain or increase muscle strength. The long-term objective
of this research is to leverage our understanding of fat-muscle cross-talk to therapeutically modulate IMAT
paracrine signaling to promote muscle growth and regeneration. Recently, IMAT has been identified as a
specialized sub-type of fat called beige fat, that can be stimulated to adopt features of brown fat, potentially
including the secretion of pro-regenerative factors. It is the primary objective of this proposal to determine the
mechanisms of pro-regenerative action of brown fat on muscle and whether this action can be mimicked by IMAT
stimulation. Our central hypothesis is that brown fat promotes muscle regeneration by enhancing myogenic
differentiation via paracrine secreted follistatin. To address our hypothesis, our approach will use our novel
system of mouse intermuscular fat transplant to model paracrine fat-muscle cross-talk. We will use this system
to control the timing and composition of brown fat signaling for mechanistic exploration of the cellular response
during muscle regeneration (aim 1) and the role of follistatin in mediating that response (aim 2). We will also
explore the therapeutic potential of mimicking brown fat paracrine signaling via stimulation in mouse and human
IMAT (aim 3). Altogether, these studies will broaden our understanding of the basic biology of brown fat signaling,
the nature of IMAT-muscle cross-talk and the therapeutic potential for stimulating IMAT and other depots of beige
fat to improve tissue physiology.
项目摘要
持续的肌肉无力和身体残疾降低了数百万美国人的生活质量。
这些物理局限性与肌间/肌内脂肪组织(IMAT)的病理积累有关
在众多人群和病因中。该链接结合了IMAT积累对
标准饮食和锻炼改建线索指出,IMAT是持续且没有解决的临床
问题,可能阻碍康复的努力,以维持或增加肌肉力量。长期目标
这项研究的是利用我们对脂肪肌肉串扰的理解来治疗调节IMAT
旁分泌信号传导以促进肌肉生长和再生。最近,IMAT被确定为
脂肪的专门亚型称为米色脂肪,可以刺激以采用棕色脂肪的特征
包括促进因素的分泌。确定该提议的主要目标是
棕色脂肪对肌肉的促进作用的机制以及IMAT是否可以模仿这种作用
刺激。我们的中心假设是棕色脂肪通过增强肌原性促进肌肉再生
通过旁分泌分泌的follistatin分化。为了解决我们的假设,我们的方法将使用我们的小说
小鼠肌间脂肪移植的系统,以模拟旁分泌脂肪肌肉串扰。我们将使用此系统
控制棕色脂肪信号传导的时间和组成,以探索细胞反应
在肌肉再生过程中(AIM 1)和卵泡素在介导该反应中的作用(AIM 2)。我们也会
探索通过小鼠和人类刺激模仿棕色脂肪旁丝烯信号传导的治疗潜力
IMAT(AIM 3)。算上,这些研究将扩大我们对棕色脂肪信号传导的基本生物学的理解,
IMAT肌肉串扰的性质以及刺激IMAT和其他米色库的治疗潜力
脂肪以改善组织生理学。
项目成果
期刊论文数量(0)
专著数量(0)
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会议论文数量(0)
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Gretchen A Meyer其他文献
Gretchen A Meyer的其他文献
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{{ truncateString('Gretchen A Meyer', 18)}}的其他基金
Promoting Muscle Regeneration through Adipose Signaling
通过脂肪信号促进肌肉再生
- 批准号:
9981629 - 财政年份:2019
- 资助金额:
$ 33.61万 - 项目类别:
Promoting Muscle Regeneration through Adipose Signaling
通过脂肪信号促进肌肉再生
- 批准号:
10660957 - 财政年份:2019
- 资助金额:
$ 33.61万 - 项目类别:
Promoting Muscle Regeneration through Adipose Signaling
通过脂肪信号促进肌肉再生
- 批准号:
10441480 - 财政年份:2019
- 资助金额:
$ 33.61万 - 项目类别:
Promoting regeneration in muscular dystrophy with adipose derived stem cells.
利用脂肪干细胞促进肌营养不良症的再生。
- 批准号:
8607830 - 财政年份:2012
- 资助金额:
$ 33.61万 - 项目类别:
Promoting regeneration in muscular dystrophy with adipose derived stem cells.
利用脂肪干细胞促进肌营养不良症的再生。
- 批准号:
8398548 - 财政年份:2012
- 资助金额:
$ 33.61万 - 项目类别:
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