PMID- 22504485 OWN - NLM STAT- MEDLINE DCOM- 20120727 LR - 20221109 IS - 1546-170X (Electronic) IS - 1078-8956 (Print) IS - 1078-8956 (Linking) VI - 18 IP - 5 DP - 2012 Apr 15 TI - Mitochondrial transfer from bone-marrow-derived stromal cells to pulmonary alveoli protects against acute lung injury. PG - 759-65 LID - 10.1038/nm.2736 [doi] AB - Bone marrow-derived stromal cells (BMSCs) protect against acute lung injury (ALI). To determine the role of BMSC mitochondria in this protection, we airway-instilled mice first with lipopolysaccharide (LPS) and then with either mouse BMSCs (mBMSCs) or human BMSCs (hBMSCs). Live optical studies revealed that the mBMSCs formed connexin 43 (Cx43)-containing gap junctional channels (GJCs) with the alveolar epithelia in these mice, releasing mitochondria-containing microvesicles that the epithelia engulfed. The presence of BMSC-derived mitochondria in the epithelia was evident optically, as well as by the presence of human mitochondrial DNA in mouse lungs instilled with hBMSCs. The mitochondrial transfer resulted in increased alveolar ATP concentrations. LPS-induced ALI, as indicated by alveolar leukocytosis and protein leak, inhibition of surfactant secretion and high mortality, was markedly abrogated by the instillation of wild-type mBMSCs but not of mutant, GJC-incompetent mBMSCs or mBMSCs with dysfunctional mitochondria. This is the first evidence, to our knowledge, that BMSCs protect against ALI by restituting alveolar bioenergetics through Cx43-dependent alveolar attachment and mitochondrial transfer. FAU - Islam, Mohammad Naimul AU - Islam MN AD - Lung Biology Laboratory, Department of Medicine, Division of Pulmonary, Allergy and Critical Care Medicine, College of Physicians and Surgeons of Columbia University, New York, New York, USA. FAU - Das, Shonit R AU - Das SR FAU - Emin, Memet T AU - Emin MT FAU - Wei, Michelle AU - Wei M FAU - Sun, Li AU - Sun L FAU - Westphalen, Kristin AU - Westphalen K FAU - Rowlands, David J AU - Rowlands DJ FAU - Quadri, Sadiqa K AU - Quadri SK FAU - Bhattacharya, Sunita AU - Bhattacharya S FAU - Bhattacharya, Jahar AU - Bhattacharya J LA - eng GR - R01 HL057556/HL/NHLBI NIH HHS/United States GR - R37 HL036024/HL/NHLBI NIH HHS/United States GR - R01 HL036024/HL/NHLBI NIH HHS/United States GR - R01 HL064896/HL/NHLBI NIH HHS/United States GR - HL64896/HL/NHLBI NIH HHS/United States GR - HL36024/HL/NHLBI NIH HHS/United States GR - HL57556/HL/NHLBI NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20120415 PL - United States TA - Nat Med JT - Nature medicine JID - 9502015 RN - 0 (Connexin 43) RN - 8L70Q75FXE (Adenosine Triphosphate) SB - IM CIN - Nat Med. 2012 May;18(5):653-4. PMID: 22561816 MH - Acute Lung Injury/*prevention & control MH - Adenosine Triphosphate/metabolism MH - Animals MH - Bone Marrow Cells/*physiology MH - Connexin 43/physiology MH - Energy Metabolism MH - Gap Junctions/physiology MH - Humans MH - Male MH - Mice MH - Mice, Inbred C57BL MH - Mitochondria/*physiology MH - Pulmonary Alveoli/*metabolism MH - Stromal Cells/physiology PMC - PMC3727429 MID - NIHMS493265 COIS- Conflicts of interest: None EDAT- 2012/04/17 06:00 MHDA- 2012/07/28 06:00 PMCR- 2013/07/30 CRDT- 2012/04/17 06:00 PHST- 2012/01/18 00:00 [received] PHST- 2012/03/16 00:00 [accepted] PHST- 2012/04/17 06:00 [entrez] PHST- 2012/04/17 06:00 [pubmed] PHST- 2012/07/28 06:00 [medline] PHST- 2013/07/30 00:00 [pmc-release] AID - nm.2736 [pii] AID - 10.1038/nm.2736 [doi] PST - epublish SO - Nat Med. 2012 Apr 15;18(5):759-65. doi: 10.1038/nm.2736.