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Muscle Stem Cells: A Model System for Adult Stem Cell Biology.

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TLDR
Background in the field is provided and recent advances in the understanding of muscle stem cell function and dysfunction are discussed, particularly in the case of aging, and the potential involvement of Muscle stem cells in genetic diseases such as the muscular dystrophies are discussed.
Abstract
Skeletal muscle stem cells, originally termed satellite cells for their position adjacent to differentiated muscle fibers, are absolutely required for the process of skeletal muscle repair and regeneration. In the last decade, satellite cells have become one of the most studied adult stem cell systems and have emerged as a standard model not only in the field of stem cell-driven tissue regeneration but also in stem cell dysfunction and aging. Here, we provide background in the field and discuss recent advances in our understanding of muscle stem cell function and dysfunction, particularly in the case of aging, and the potential involvement of muscle stem cells in genetic diseases such as the muscular dystrophies.

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Journal ArticleDOI

Proteostatic and Metabolic Control of Stemness

TL;DR: New insights are discussed into how metabolism, mitochondrial dynamics, and protein homeostasis control potency, self-renewal, differentiation, and aging of highly proliferative embryonic stem cells and quiescent adult stem cells, with a focus on hematopoietic and muscle stem cells.
Journal ArticleDOI

Autophagy and the hallmarks of aging.

TL;DR: In this paper, the authors summarize evidence for the contribution of autophagy to health and lifespan and provide examples of the bidirectional interplay between autophagic pathways and several of the so-called hallmarks of aging.
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Signaling pathways regulating the fate of fibro/adipogenic progenitors (FAPs) in skeletal muscle regeneration and disease

TL;DR: In this article, a detailed overview of pathways and metabolic routes that can be modulated to halt and redirect their fibro/adipogenic potential while favoring their supportive role in muscle regeneration is presented.
Journal ArticleDOI

A real-time monitoring platform of myogenesis regulators using double fluorescent labeling

TL;DR: A double fluorescent tagging approach is developed, which allows for dynamic monitoring of myoblast differentiation through assessment of fusion index and nuclei count, and is a promising technique to visualize even minor changes in myogenesis of myoblasts in order to support applications such as tissue engineering and drug screening.
Journal ArticleDOI

The Best for the Most Important: Maintaining a Pristine Proteome in Stem and Progenitor Cells

TL;DR: Cellular networks used by various stem cells for generation and maintenance of a pristine proteome are summarized and the coordination of these networks with one another and their integration with the gene regulatory and signaling networks are explored.
References
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Journal ArticleDOI

The Hallmarks of Aging

TL;DR: Nine tentative hallmarks that represent common denominators of aging in different organisms are enumerated, with special emphasis on mammalian aging, to identify pharmaceutical targets to improve human health during aging, with minimal side effects.
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A Direct Measurement of the Radiation Sensitivity of Normal Mouse Bone Marrow Cells

TL;DR: Counts of macroscopic splenic colonies were used to obtain an estimate of the radiation sensitivity of normal mouse bone marrow progenitor cells.
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Satellite cell of skeletal muscle fibers.

TL;DR: In the course of an electron microscopic study of the peripheral region of the skeletal muscle fiber of the frog, the presence of certain cells, intimately associated with the muscle fiber, have been observed which the authors have chosen to call satellite cells.
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Pax7 is required for the specification of myogenic satellite cells.

TL;DR: The paired box transcription factor Pax7 was isolated by representational difference analysis as a gene specifically expressed in cultured satellite cell-derived myoblasts and it was demonstrated that satellite cells and muscle-derived stem cells represent distinct cell populations.
Journal ArticleDOI

Rejuvenation of aged progenitor cells by exposure to a young systemic environment

TL;DR: Heterochronic parabiosis increased aged hepatocyte proliferation and restored the cEBP-α complex to levels seen in young animals, suggesting that the age-related decline of progenitor cell activity can be modulated by systemic factors that change with age.
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