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Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated TSPCs]

ABSTRACT: Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated TSPCs]

PROVIDER: PRJNA1006722 | ENA |

REPOSITORIES: ENA

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Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated TSPCs]

Project description:Adult tendon stem/progenitor cells (TSPCs) are essential for tendon maintenance, regeneration, and repair, yet they become susceptible to senescence with age, impairing the self-healing capacity of tendons. In this study, we employ a recently developed deep-learning-based efficacy prediction system to screen potential stemness-promoting and senescence-inhibiting drugs from natural products using the transcriptional signatures of stemness. The top-ranked candidate prim-O-glucosylcimifugin (POG), a saposhnikovia root extract, could ameliorate TPSC- senescent phenotypes caused by long-term passage and natural aging in rats and humans, as well as restore self-renewal and proliferation capacities, and tenogenic potential of aged TSPCs. In vivo, the systematic administration of POG or the local delivery of POG nanoparticles functionally rescues endogenous tendon regeneration and repair capacity in aged rats to levels similar to normal animals. Mechanistically, POG protects TSPCs against functional impairment during both passage-induced and natural aging by simultaneously suppressing nuclear factor-κB and downregulating mTOR signaling with induction of autophagy. Together, the strategy by pharmacological intervention with deep learning-predicted compound POG could rejuvenate aged TSPCs and improve the regenerative capacity of aged tendons. We performed mRNA microarray analyses of DMSO-treated and POG-treated TSPCs from 18-month-old rats and identified meaningful genes in down-regulated and up-regulated group

2023-11-02 | GSE241202 | GEO

Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated Passage 12 TSPCs]

Project description:Adult tendon stem/progenitor cells (TSPCs) are essential for tendon maintenance, regeneration, and repair, yet they become susceptible to senescence with age, impairing the self-healing capacity of tendons. In this study, we employ a recently developed deep-learning-based efficacy prediction system to screen potential stemness-promoting and senescence-inhibiting drugs from natural products using the transcriptional signatures of stemness. The top-ranked candidate prim-O-glucosylcimifugin (POG), a saposhnikovia root extract, could ameliorate TPSC- senescent phenotypes caused by long-term passage and natural aging in rats and humans, as well as restore self-renewal and proliferation capacities, and tenogenic potential of aged TSPCs. In vivo, the systematic administration of POG or the local delivery of POG nanoparticles functionally rescues endogenous tendon regeneration and repair capacity in aged rats to levels similar to normal animals. Mechanistically, POG protects TSPCs against functional impairment during both passage-induced and natural aging by simultaneously suppressing nuclear factor-κB and downregulating mTOR signaling with induction of autophagy. Together, the strategy by pharmacological intervention with deep learning-predicted compound POG could rejuvenate aged TSPCs and improve the regenerative capacity of aged tendons. We performed mRNA microarray analyses of DMSO-treated and POG-treated Passage 12 TSPCs and identified meaningful genes in down-regulated and up-regulated group

2023-11-02 | GSE241201 | GEO

Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated Passage 12 TSPCs]

Project description:Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells [DMSO-treated and POG-treated Passage 12 TSPCs]

| PRJNA1006721 | ENA

Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells

Project description:Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells

| PRJNA1006711 | ENA

Expression data from rat Achilles tendon-derived stem cells during development

Project description:We have compared the gene expression profile of rat Achilles tendon-derived stem cells in post-natal tendon development. Rat tendon stem/progenitor cells (TSPCs) were isolated at different stages of post-natal development: TSPCs-1d, TSPCs-7d and TSPCs-56d. TSPCs at different post-natal development stages (1d, 7d and 56d) were isolated, cultured and used for microarray analyses at passage 2. All TSPCs in this study were of isolated from more than one individual. Total RNA was extracted and fragmented biotin-tagged cRNA was hybridized to Rat Genome 230 2.0 Array.

2015-07-10 | E-GEOD-68485 | biostudies-arrayexpress

Expression data from rat Achilles tendon-derived stem cells during development

2015-07-10 | GSE68485 | GEO

N-Acetyl-L-cysteine facilitates tendon repair and promotes the tenogenic differentiation of tendon stem/progenitor cells by enhancing the integrin α5/β1/PI3K/AKT signaling

Project description:N-acetyl-L-cysteine (NAC) is a potent antioxidant. However, how NAC affects the biological functions of tendon stem/progenitor cells (TSPCs) and tendon repair has not been clarified.The effect of NAC on gene transcription in TSPCs was analyzed by transcriptomes and bioinformatics.

2022-11-18 | GSE218038 | GEO

Nonwoven-based gelatin/polycaprolactone membrane loaded with ERK inhibitor U0126 for treatment of tendon defects

Project description:Background: Tendon is a major component of musculoskeletal system connecting the muscles to the bone. Tendon injuries are very common orthopedics problems leading to impeded motion. Up to now, there still lacks effective treatments for tendon diseases. Methods: Tendon stem/progenitor cells (TSPCs) were isolated from the patellar tendons of SD rats. The expression levels of genes were evaluated by quantitative RT-PCR. Immunohistochemistry staining was performed to confirm the presence of tendon markers in tendon tissues. Bioinformatics analysis of data acquired by RNA-seq was used to find out the differentially expressed genes. Rat patellar tendon injury model was used to evaluate the effect of U0126 on tendon injury healing. Biomechanical testing was applied to evaluate the mechanical properties of newly formed tendon tissues. Results: In this study, we have shown that ERK inhibitor U0126 rather PD98059 could effectively increase the expression of tendon-related genes and promote the tenogenesis of TSPCs in vitro. To explore the underlying mechanisms, RNA sequencing was performed to identify the molecular difference between U0126-treated and control TSPCs. The result showed that GDF6 was significantly increased by U0126, which is an important factor of the TGFβ superfamily regulating tendon development and tenogenesis. In addition, NBM (nonwoven-based gelatin/polycaprolactone membrane) which mimics the native microenvironment of the tendon tissue was used as an acellular scaffold to carry U0126. The results demonstrated that when NBM was used in combination with U0126, tendon healing was significantly promoted with better histological staining outcomes and mechanical properties. Conclusion: Taken together, we have found U0126 promoted tenogenesis in TSPCs through activating GDF6, and NBM loaded with U0126 significantly promoted tendon defect healing, which provides a new treatment for tendon injury.

2022-12-10 | GSE190685 | GEO

Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration capacity via rejuvenating senescent tendon stem/progenitor cells

Project description:This SuperSeries is composed of the SubSeries listed below.

2023-11-02 | GSE241203 | GEO

Prim-O-glucosylcimifugin ameliorates aging-impaired endogenous tendon regeneration by rejuvenating senescent tendon stem/progenitor cells.

Project description:Adult tendon stem/progenitor cells (TSPCs) are essential for tendon maintenance, regeneration, and repair, yet they become susceptible to senescence with age, impairing the self-healing capacity of tendons. In this study, we employ a recently developed deep-learning-based efficacy prediction system to screen potential stemness-promoting and senescence-inhibiting drugs from natural products using the transcriptional signatures of stemness. The top-ranked candidate, prim-O-glucosylcimifugin (POG), a saposhnikovia root extract, could ameliorate TPSC senescent phenotypes caused by long-term passage and natural aging in rats and humans, as well as restore the self-renewal and proliferative capacities and tenogenic potential of aged TSPCs. In vivo, the systematic administration of POG or the local delivery of POG nanoparticles functionally rescued endogenous tendon regeneration and repair in aged rats to levels similar to those of normal animals. Mechanistically, POG protects TSPCs against functional impairment during both passage-induced and natural aging by simultaneously suppressing nuclear factor-κB and decreasing mTOR signaling with the induction of autophagy. Thus, the strategy of pharmacological intervention with the deep learning-predicted compound POG could rejuvenate aged TSPCs and improve the regenerative capacity of aged tendons.

| S-EPMC10593834 | biostudies-literature

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