Mechanotherapy reprograms aged muscle stromal cells to remodel the extracellular matrix during recovery from disuse

ZR Hettinger, Y Wen, BD Peck, K Hamagata… - Function, 2022 - academic.oup.com
Aging is accompanied by reduced remodeling of skeletal muscle extracellular matrix (ECM),
which is exacerbated during recovery following periods of disuse atrophy. Mechanotherapy …

Aging of the skeletal muscle extracellular matrix drives a stem cell fibrogenic conversion

KM Stearns‐Reider, A D'Amore, K Beezhold… - Aging cell, 2017 - Wiley Online Library
Age‐related declines in skeletal muscle regeneration have been attributed to muscle stem
cell (MuSC) dysfunction. Aged MuSCs display a fibrogenic conversion, leading to fibrosis …

[HTML][HTML] Increased stiffness in aged skeletal muscle impairs muscle progenitor cell proliferative activity

G Lacraz, AJ Rouleau, V Couture, T Söllrald, G Drouin… - PloS one, 2015 - journals.plos.org
Background Skeletal muscle aging is associated with a decreased regenerative potential
due to the loss of function of endogenous stem cells or myogenic progenitor cells (MPCs) …

Disrupted macrophage metabolic reprogramming in aged soleus muscle during early recovery following disuse atrophy

DK Fix, HA Ekiz, JJ Petrocelli, AM Mckenzie… - Aging …, 2021 - Wiley Online Library
Aged skeletal muscle is characterized by poor muscle recovery following disuse coinciding
with an impaired muscle pro‐inflammatory macrophage response. Macrophage …

[HTML][HTML] Single-cell transcriptomic analysis of skeletal muscle regeneration across mouse lifespan identifies altered stem cell states associated with senescence

LD Walter, JL Orton, EHH Fong, VI Maymi, BD Rudd… - BioRxiv, 2023 - ncbi.nlm.nih.gov
Skeletal muscle regeneration is driven by the interaction of myogenic and non-myogenic
cells. In aging, regeneration is impaired due to dysfunctions of myogenic and non-myogenic …

[HTML][HTML] Extensive remodeling of the extracellular matrix during aging contributes to age-dependent impairments of muscle stem cell functionality

SC Schüler, JM Kirkpatrick, M Schmidt, D Santinha… - Cell reports, 2021 - cell.com
During aging, the regenerative capacity of skeletal muscle decreases due to intrinsic
changes in muscle stem cells (MuSCs) and alterations in their niche. Here, we use …

Plasticity of muscle stem cells in homeostasis and aging

E Porpiglia, HM Blau - Current Opinion in Genetics & Development, 2022 - Elsevier
We are living longer, but our healthspan has not increased. The goal of regenerative
medicine is to increase quality of life through an understanding of the cellular and molecular …

[HTML][HTML] Macrophage involvement in aging-associated skeletal muscle regeneration

CY Cui, L Ferrucci, M Gorospe - Cells, 2023 - mdpi.com
The skeletal muscle is a dynamic organ composed of contractile muscle fibers, connective
tissues, blood vessels and nerve endings. Its main function is to provide motility to the body …

[PDF][PDF] A cellular atlas of skeletal muscle regeneration and aging

B Pawlikowski, ND Betta, T Elston, R O'Rourke… - BioRxiv, 2019 - researchgate.net
An individual skeletal muscle is a complex structure, composed of large contractile
myofibers, connective tissue, nerve tissue, immune cells, stem cells and the vasculature …

Overcoming muscle stem cell aging

S Memczak, JCI Belmonte - Current Opinion in Genetics & Development, 2023 - Elsevier
Highlights•Muscle stem cell function loss contributes to reduced strength in old age.•Single
cell technologies reveal exciting details of muscle biology during aging.•Muscle Cellular …