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Updated: Jan 24, 2026
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Purification and Transplantation of Myogenic Progenitor Cell Derived Exosomes to Improve Cardiac Function in Duchenne Muscular Dystrophic Mice
Published on: April 10, 2019
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Stem Cell-Derived Exosomes Prevent Aging-Induced Cardiac Dysfunction through a Novel Exosome/lncRNA
Bao Zhu1, Lulu Zhang1, Chun Liang2
1Institute for Cardiovascular Science & Department of Cardiovascular Surgery, First Affiliated Hospital of Soochow University, Suzhou, Jiangsu 215123, China.
Oxidative Medicine and Cellular Longevity
|May 16, 2019
Summary
Human umbilical cord mesenchymal stem cell-derived exosomes prevent aging-related heart dysfunction. These exosomes release metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) long noncoding RNA (lncRNA), inhibiting the NF-κB/TNF-α pathway.
Area of Science:
- Cardiovascular Biology
- Aging Research
- Stem Cell Therapy
Background:
- Aging is a significant risk factor for cardiovascular disease, with limited therapeutic options.
- Nuclear factor-kappa B (NF-κB) and tumor necrosis factor-alpha (TNF-α) are implicated in aging, but their inactivation pathways are unclear.
- Exosomes show potential in cardiac repair via miRNA, but the role of long noncoding RNAs (lncRNAs) in exosome-mediated cardiac repair is unexplored.
Purpose of the Study:
- To investigate the role of lncRNAs in exosome-mediated cardiac repair.
- To explore the therapeutic potential of human umbilical cord mesenchymal stem cell (UMSC)-derived exosomes in preventing aging-induced cardiac dysfunction.
- To identify the specific lncRNA involved in exosome-mediated cardiac protection and its mechanism of action.
Main Methods:
- Utilized UMSC-derived exosomes for potential therapeutic effects on aging hearts.
- Investigated the role of metastasis-associated lung adenocarcinoma transcript 1 (MALAT1), a lncRNA, in exosome function.
- Employed silencer RNA targeting MALAT1 to assess its necessity for exosome-mediated benefits.
- Analyzed the impact on the NF-κB/TNF-α signaling pathway.
Main Results:
- UMSC-derived exosomes demonstrated efficacy in preventing aging-induced cardiac dysfunction.
- Silencing MALAT1 in exosomes abrogated their protective effects on the aging heart.
- UMSC-derived exosomes deliver MALAT1, which subsequently inhibits the NF-κB/TNF-α signaling pathway.
Conclusions:
- UMSC-derived exosomes prevent aging-induced cardiac dysfunction through the delivery of MALAT1 lncRNA.
- MALAT1 acts by inhibiting the NF-κB/TNF-α signaling pathway, offering a novel therapeutic target.
- These findings pave the way for developing therapies to delay aging and age-related cardiovascular diseases.
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