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Estrogen Signaling Dictates Musculoskeletal Stem Cell Behavior: Sex Differences in Tissue Repair
Knewtson, Kelsey E. Ohl, Nathan R. Robinson, Jennifer L.
Knewtson, Kelsey E.
Ohl, Nathan R.
Robinson, Jennifer L.
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Abstract
Sexual dimorphisms in humans and other species exist in visually evident features such as body size and less apparent characteristics, including disease prevalence. Current research is adding to a growing understanding of sex differences in stem cell function and response to external stimuli, including sex hormones such as estrogens. These differences are proving significant and directly impact both the understanding of stem cell processes in tissue repair and the clinical implementation of stem cell therapies. Adult stem cells of the musculoskeletal system, including those used for development and repair of muscle, bone, cartilage, fibrocartilage, ligaments, and tendons, are no exception. Both in vitro and in vivo studies have found differences in stem cell number, proliferative and differentiation capabilities, and response to estrogen treatment between males and females of many species. Maintaining the stemness and reducing senescence of adult stem cells is an important topic with implications in regenerative therapy and aging. As such, this review discusses the effect of estrogens on musculoskeletal system stem cell response in multiple species and highlights the research gaps that still need to be addressed. The following evidence from investigations of sex-related phenotypes in adult progenitor and stem cells are pieces to the big puzzle of sex-related effects on aging and disease and critical information for both fundamental tissue repair and regeneration studies and safe and effective clinical use of stem cells.
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Date
2022-08-08
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Mary Ann Liebert
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Keywords
Estrogen, Sexual dimorphism, Musculoskeletal stem cells, Bone marrow mesenchymal stromal cells, Adipose derived stem cells
Citation
Kelsey E. Knewtson, Nathan R. Ohl, and Jennifer L. Robinson.Estrogen Signaling Dictates Musculoskeletal Stem Cell Behavior: Sex Differences in Tissue Repair.Tissue Engineering Part B: Reviews.Aug 2022.789-812.http://doi.org/10.1089/ten.teb.2021.0094