Mesenchymal stromal cell potency to treat acute kidney injury increased by ultrasound-activated interferon-γ/interleukin-10 axis.
Mesenchymal stromal cell potency to treat acute kidney injury increased by ultrasound-activated interferon-γ/interleukin-10 axis.
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DOI:
10.1111/jcmm.13874
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发表时间:
2018-12
影响因子:
5.3
通讯作者:
Frank JA
中科院分区:
文献类型:
--
作者:
Burks SR;Nagle ME;Bresler MN;Kim SJ;Star RA;Frank JA
Mesenchymal stromal cell (MSC) therapies combined with renal pulsed focused ultrasound (pFUS) pretreatment increase MSC homing and improve cisplatin‐induced acute kidney injury (AKI) better than MSC alone. However, mechanisms underlying improved outcomes remain unknown. We hypothesize pFUS up‐regulates renal interferon‐γ (IFNγ) and stimulates MSC to produce interleukin‐10 (IL‐10) after migrating to kidneys. To demonstrate initially, MSC cultured with IFNγ up‐regulated IL‐10. More MSC‐derived IL‐10 was detected in kidneys when IFNγ‐stimulated MSC were infused and they improved AKI better than unstimulated MSC. Next, IFNγ‐knockout mice with AKI received pFUS+MSC, but MSC‐derived IL‐10 expression and AKI were similar to using MSC alone. AKI in wild‐type mice receiving pFUS and IL‐10‐deficient MSC was also unimproved compared to administering IL‐10‐deficient MSC alone. Indoleamine 2,3‐dioxygenase (IDO), an anti‐inflammatory enzyme up‐regulated in MSC by IFNγ, was up‐regulated during AKI, but was not further elevated in MSC from pFUS‐treated kidneys, suggesting that IDO is not involved in improved AKI healing by pFUS+MSC. These data suggest IFNγ is up‐regulated by pFUS and after i.v.‐infused MSC home to pFUS‐treated kidneys, IFNγ stimulates additional IL‐10 production by MSC to improve AKI. Analogous mechanisms of ultrasound‐treated tissue microenvironments stimulating therapeutic MSC may exist in other pathologies where adjuvant ultrasound techniques are successful.
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