PMID- 34065421 OWN - NLM STAT- MEDLINE DCOM- 20210617 LR - 20220512 IS - 1422-0067 (Electronic) IS - 1422-0067 (Linking) VI - 22 IP - 10 DP - 2021 May 20 TI - Rapamycin Alternatively Modifies Mitochondrial Dynamics in Dendritic Cells to Reduce Kidney Ischemic Reperfusion Injury. LID - 10.3390/ijms22105386 [doi] LID - 5386 AB - Dendritic cells (DCs) are unique immune cells that can link innate and adaptive immune responses and Immunometabolism greatly impacts their phenotype. Rapamycin is a macrolide compound that has immunosuppressant functions and is used to prevent graft loss in kidney transplantation. The current study evaluated the therapeutic potential of ex-vivo rapamycin treated DCs to protect kidneys in a mouse model of acute kidney injury (AKI). For the rapamycin single (S) treatment (Rapa-S-DC), Veh-DCs were treated with rapamycin (10 ng/mL) for 1 h before LPS. In contrast, rapamycin multiple (M) treatment (Rapa-M-DC) were exposed to 3 treatments over 7 days. Only multiple ex-vivo rapamycin treatments of DCs induced a persistent reprogramming of mitochondrial metabolism. These DCs had 18-fold more mitochondria, had almost 4-fold higher oxygen consumption rates, and produced more ATP compared to Veh-DCs (Veh treated control DCs). Pathway analysis showed IL10 signaling as a major contributing pathway to the altered immunophenotype after Rapamycin treatment compared to vehicle with significantly lower cytokines Tnfa, Il1b, and Il6, while regulators of mitochondrial content Pgc1a, Tfam, and Ho1 remained elevated. Critically, adoptive transfer of rapamycin-treated DCs to WT recipients 24 h before bilateral kidney ischemia significantly protected the kidneys from injury with a significant 3-fold improvement in kidney function. Last, the infusion of DCs containing higher mitochondria numbers (treated ex-vivo with healthy isolated mitochondria (10 microg/mL) one day before) also partially protected the kidneys from IRI. These studies demonstrate that pre-emptive infusion of ex-vivo reprogrammed DCs that have higher mitochondria content has therapeutic capacity to induce an anti-inflammatory regulatory phenotype to protect kidneys from injury. FAU - Namwanje, Maria AU - Namwanje M AD - Department of Pediatrics, The University of Tennessee Health Science Center, Memphis, TN 38103, USA. AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Bisunke, Bijay AU - Bisunke B AD - Department of Genetics, Genomics, and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Rousselle, Thomas V AU - Rousselle TV AD - Department of Surgery, Surgical Sciences Division, School of Medicine, University of Maryland, Baltimore, MD 21201, USA. FAU - Lamanilao, Gene G AU - Lamanilao GG AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Sunder, Venkatadri S AU - Sunder VS AD - Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India. FAU - Patterson, Elizabeth C AU - Patterson EC AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Kuscu, Canan AU - Kuscu C AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Kuscu, Cem AU - Kuscu C AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Maluf, Daniel AU - Maluf D AD - Division of Transplant Surgery, University of Maryland Medical Center, School of Medicine, University of Maryland, Baltimore, MD 21201, USA. FAU - Kiran, Manjari AU - Kiran M AUID- ORCID: 0000-0003-0153-7072 AD - Department of Systems and Computational Biology, School of Life Sciences, University of Hyderabad, Hyderabad 500046, India. FAU - Mas, Valeria AU - Mas V AD - Department of Surgery, Surgical Sciences Division, School of Medicine, University of Maryland, Baltimore, MD 21201, USA. FAU - Eason, James D AU - Eason JD AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. FAU - Bajwa, Amandeep AU - Bajwa A AUID- ORCID: 0000-0003-0517-8871 AD - Transplant Research Institute, James D. Eason Transplant Institute, Department of Surgery, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. AD - Department of Genetics, Genomics, and Informatics, College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. AD - Department of Microbiology, Immunology, and Biochemistry; College of Medicine, The University of Tennessee Health Science Center, Memphis, TN 38163, USA. LA - eng GR - R01 DK109581/DK/NIDDK NIH HHS/United States GR - R01 DK117183/DK/NIDDK NIH HHS/United States GR - R01 DK122682/DK/NIDDK NIH HHS/United States GR - R01DK117183/NH/NIH HHS/United States PT - Journal Article DEP - 20210520 PL - Switzerland TA - Int J Mol Sci JT - International journal of molecular sciences JID - 101092791 RN - 0 (Cytokines) RN - W36ZG6FT64 (Sirolimus) SB - IM MH - Acute Kidney Injury/*drug therapy/metabolism MH - Adoptive Transfer/methods MH - Animals MH - Cytokines/metabolism MH - Dendritic Cells/*drug effects/metabolism MH - HEK293 Cells MH - Humans MH - Inflammation/metabolism MH - Ischemia/*drug therapy/metabolism MH - Kidney/drug effects/metabolism MH - Male MH - Mice MH - Mice, Inbred BALB C MH - Mice, Inbred C57BL MH - Mitochondria/*drug effects/metabolism MH - Mitochondrial Dynamics/*drug effects MH - Reperfusion Injury/*drug therapy/metabolism MH - Signal Transduction/drug effects MH - Sirolimus/*pharmacology PMC - PMC8160749 OTO - NOTNLM OT - acute kidney injury OT - dendritic cell OT - ischemic reperfusion injury OT - mitochondria OT - rapamycin COIS- The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest. EDAT- 2021/06/03 06:00 MHDA- 2021/06/22 06:00 PMCR- 2021/05/20 CRDT- 2021/06/02 01:12 PHST- 2021/04/19 00:00 [received] PHST- 2021/05/13 00:00 [revised] PHST- 2021/05/17 00:00 [accepted] PHST- 2021/06/02 01:12 [entrez] PHST- 2021/06/03 06:00 [pubmed] PHST- 2021/06/22 06:00 [medline] PHST- 2021/05/20 00:00 [pmc-release] AID - ijms22105386 [pii] AID - ijms-22-05386 [pii] AID - 10.3390/ijms22105386 [doi] PST - epublish SO - Int J Mol Sci. 2021 May 20;22(10):5386. doi: 10.3390/ijms22105386.