Identification of kidney injury released circulating osteopontin as causal agent of respiratory failure.

Identification of kidney injury released circulating osteopontin as causal agent of respiratory failure.
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DOI:
10.1126/sciadv.abm5900
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发表时间:
2022-02-25
期刊:
影响因子:
13.6
通讯作者:
Herrlich A
Herrlich A
中科院分区:
综合性期刊1区
文献类型:
--
作者:
Khamissi FZ;Ning L;Kefaloyianni E;Dun H;Arthanarisami A;Keller A;Atkinson JJ;Li W;Wong B;Dietmann S;Lavine K;Kreisel D;Herrlich A

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Tissue injury can drive secondary organ injury; however, mechanisms and mediators are not well understood. To identify interorgan cross-talk mediators, we used acute kidney injury (AKI)–induced acute lung injury (ALI) as a clinically important example. Using kidney and lung single-cell RNA sequencing after AKI in mice followed by ligand-receptor pairing analysis across organs, kidney ligands to lung receptors, we identify kidney-released circulating osteopontin (OPN) as a novel AKI-ALI mediator. OPN release from kidney tubule cells triggered lung endothelial leakage, inflammation, and respiratory failure. Pharmacological or genetic OPN inhibition prevented AKI-ALI. Transplantation of ischemic wt kidneys caused AKI-ALI, but not of ischemic OPN–global knockout kidneys, identifying kidney-released OPN as necessary interorgan signal to cause AKI-ALI. We show that OPN serum levels are elevated in patients with AKI and correlate with kidney injury. Our results demonstrate feasibility of using ligand-receptor analysis across organs to identify interorgan cross-talk mediators and may have important therapeutic implications in human AKI-ALI and multiorgan failure. Osteopontin is a novel therapeutic target in kidney failure–induced respiratory failure.
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