2021
DOI: 10.1038/s41536-021-00132-4
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Small extracellular vesicles derived from interferon-γ pre-conditioned mesenchymal stromal cells effectively treat liver fibrosis

Abstract: Mesenchymal stromal cells (MSCs) are used for ameliorating liver fibrosis and aiding liver regeneration after cirrhosis; Here, we analyzed the therapeutic potential of small extracellular vesicles (sEVs) derived from interferon-γ (IFN-γ) pre-conditioned MSCs (γ-sEVs). γ-sEVs effectively induced anti-inflammatory macrophages with high motility and phagocytic abilities in vitro, while not preventing hepatic stellate cell (HSC; the major source of collagen fiber) activation in vitro. The proteome analysis of MSC-… Show more

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Cited by 61 publications
(73 citation statements)
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“…Same-pathway SMAD was described to be modified by the exosomes secreted by MSCs in an injured endometrium repaired by fibrosis [ 136 ]. Takeuchi et al analyzed the proteome of EVs derived from MSCs, describing an increase in anti-inflammatory macrophage-inducible proteins (e.g., annexin-A1, lactotransferrin and aminopeptidase N), which triggered liver regeneration after fibrosis and cirrhosis; they pre-conditioned the EVs with an IFN-γ treatment, and the pre-conditioning-altered sEVs resulted in efficient tissue repair, indicating a new therapeutic strategy to treat fibrosis in a mouse model of cirrhosis [ 137 ].…”
Section: Mscs As a Treatment Of Several Typical Pathologies Regarding Wound Healingmentioning
confidence: 99%
“…Same-pathway SMAD was described to be modified by the exosomes secreted by MSCs in an injured endometrium repaired by fibrosis [ 136 ]. Takeuchi et al analyzed the proteome of EVs derived from MSCs, describing an increase in anti-inflammatory macrophage-inducible proteins (e.g., annexin-A1, lactotransferrin and aminopeptidase N), which triggered liver regeneration after fibrosis and cirrhosis; they pre-conditioned the EVs with an IFN-γ treatment, and the pre-conditioning-altered sEVs resulted in efficient tissue repair, indicating a new therapeutic strategy to treat fibrosis in a mouse model of cirrhosis [ 137 ].…”
Section: Mscs As a Treatment Of Several Typical Pathologies Regarding Wound Healingmentioning
confidence: 99%
“…Our results after injecting MSCs were consistent with those of a previous study [ 6 ]. Xenogenic human MSCs are useful for their effect on murine liver injury models [ 7 , 8 ]. Watanabe et al.…”
Section: Discussionmentioning
confidence: 99%
“…This is consistent with our finding that NK cells increased in the liver. As IFN-γ has been reported to kill activated hepatic stellate cells [ 26 ] and strengthen the anti-inflammatory effects of MSCs [ 8 ], it is possible that IFN-γ and other factors induced by JTT also enhance the therapeutic effects of MSCs. Induction of Treg cells by JTT has not been reported yet.…”
Section: Discussionmentioning
confidence: 99%
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“…The PEG hydrogels can prolong the bioavailability of MSC-EVs in targeted livers, thus enhancing the anti-fibrosis characteristics thereof [ 58 ]. Relative to MSC-EVs, MSC-EVs preconditioned with IFN-γ better alleviate the inflammation and fibrosis of the murine model with liver cirrhosis [ 59 ].…”
Section: Msc-evs and Fibrotic Diseasesmentioning
confidence: 99%