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.
项目总结:
对于数以百万计的美国人来说,持续的肌肉无力和身体残疾会降低他们的生活质量。
这些生理缺陷与肌肉间/肌肉内脂肪组织(IMAT)的病理性脂肪堆积密切相关。
在众多的非洲人群中,疾病和疾病的发病率很高。这一联系与全球IMAT药物积累的主要耐药性相结合。
标准的饮食习惯和体育锻炼的重塑暗示着IMAT是一个顽固的问题,也是临床上尚未解决的问题。
问题是,这可能会阻碍他们努力保持健康或增加肌肉力量。这是一个长期的目标。
这项研究的目的之一是利用我们对脂肪-肌肉和相声的理解来从治疗上调整IMAT。
旁分泌是促进肌肉生长和肌肉再生的信号来源。最近,它也被认为是一种新的治疗方法。
一种特殊的、亚型的脂肪被称为米色脂肪,这种脂肪可以被刺激成更多地采用棕色脂肪的特征,甚至有可能。
包括促进再生性生长因子的分泌。因此,它是这项新提案的主要目标之一,以确定是否合理。
棕色和脂肪对肌肉的促再生作用的机制,以及这个作用是否也可以被IMAT模仿。
刺激。我们的中心假说是,棕色脂肪通过增强肌肉再生能力来促进肌肉再生。
通过旁分泌的分化是由卵泡抑素分泌的。为了解决我们的假设,我们的方法将不会使用我们的新小说。
小鼠肌肉间脂肪的系统移植是为了建立旁分泌脂肪肌肉相声的模型。我们将继续使用这一系统。
为了更好地控制棕色和脂肪的时间和组成,为进一步的细胞免疫反应的机械性研究提供信号。
在肌肉再生过程中(目标1),卵泡刺激素在调节反应的过程中的重要作用(目标2)。我们也将。
探索在小鼠体内和人类体内模拟棕色、脂肪和旁分泌信号的潜在治疗方法。
总而言之,这些研究将拓宽我们对棕色脂肪信号的基本生物学机制的理解。
IMAT的本质是肌肉和串音,也是刺激IMAT和其他米色服装的潜在治疗工具。
脂肪有助于更好地改善组织和生理学。
项目成果
期刊论文数量(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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