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CTGF Attenuates Tendon-Derived Stem/Progenitor Cell Aging.


ABSTRACT: Aged tendon-derived stem/progenitor cells (TSPCs) lead to age-related tendon disorders and impair tendon healing. However, the underlying molecular mechanisms of TSPC aging remain largely unknown. Here, we investigated the role of connective tissue growth factor (CTGF) in TSPC aging. CTGF protein and mRNA levels were markedly decreased in the aged TSPCs. Moreover, recombinant CTGF attenuates TSPC aging and restores the age-associated reduction of self-renewal and differentiation of TSPCs. In addition, cell cycle distribution of aged TSPCs was arrested in the G1/S phase while recombinant CTGF treatment promoted G1/S transition. Recombinant CTGF also rescued decreased levels of cyclin D1 and CDK4 and reduced p27kip1 expression in aged TSPCs. Our results demonstrated that CTGF plays a vital role in TSPC aging and might be a potential target for molecular therapy of age-related tendon disorders.

SUBMITTER: Rui YF 

PROVIDER: S-EPMC6881574 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature

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CTGF Attenuates Tendon-Derived Stem/Progenitor Cell Aging.

Rui Yun-Feng YF   Chen Min-Hao MH   Li Ying-Juan YJ   Xiao Long-Fei LF   Geng Peng P   Wang Pei P   Xu Zheng-Yuan ZY   Zhang Xuan-Pu XP   Dai Guang-Chun GC  

Stem cells international 20191111


Aged tendon-derived stem/progenitor cells (TSPCs) lead to age-related tendon disorders and impair tendon healing. However, the underlying molecular mechanisms of TSPC aging remain largely unknown. Here, we investigated the role of connective tissue growth factor (CTGF) in TSPC aging. CTGF protein and mRNA levels were markedly decreased in the aged TSPCs. Moreover, recombinant CTGF attenuates TSPC aging and restores the age-associated reduction of self-renewal and differentiation of TSPCs. In add  ...[more]

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