期刊
MOLECULAR THERAPY-METHODS & CLINICAL DEVELOPMENT
卷 17, 期 -, 页码 683-694出版社
CELL PRESS
DOI: 10.1016/j.omtm.2020.03.023
关键词
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资金
- Kidney For Dane Community
- Akiko Yamzaki and Jerry Yang Faculty Scholar Fund in Pediatric Translational Medicine
- Stanford Maternal and Child Health Research Institute, United States
Acute kidney injury (AKI) is characterized by a sudden failure of renal function, but despite increasing worldwide prevalence, current treatments are largely supportive, with no curative therapies. Mesenchymal stromal cell (MSC) therapy has been shown to have a promising regenerative effect in AKI but is limited by the ability of cells to home to damaged tissue. Pulsed focused ultrasound (pFUS), wherein target tissues are sonicated by short bursts of sound waves, has been reported to enhance MSC homing by upregulating local homing signals. However, the exact mechanism by which pFUS enhances MSC therapy remains insufficiently explored. In this study, we studied the effect of bone marrow-derived MSCs (BMMSCs), in conjunction with pFUS, in a mouse model of cisplatin-induced AKI. Here, BM-MSCs improved kidney function, reduced histological markers of kidney injury, decreased inflammation and apoptosis, and promoted cellular proliferation. Surprisingly, whereas pFUS did not upregulate local cytokine expression or improve BM-MSC homing, it did potentiate the effect of MSC treatment in AKI. Further analysis linked this effect to the upregulation of heat shock protein (HSP)20/ HSP40 and subsequent phosphatidylinositol 3-kinase (PI3K)/ Akt signaling. In summary, our results suggest that pFUS and BM-MSCs have independent as well as synergistic therapeutic effects in the context of AKI.
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