PMID- 34571848 OWN - NLM STAT- MEDLINE DCOM- 20211119 LR - 20211119 IS - 2073-4409 (Electronic) IS - 2073-4409 (Linking) VI - 10 IP - 9 DP - 2021 Aug 26 TI - Extracellular Vehicles of Oxygen-Depleted Mesenchymal Stromal Cells: Route to Off-Shelf Cellular Therapeutics? LID - 10.3390/cells10092199 [doi] LID - 2199 AB - Cellular therapy is a promising tool of human medicine to successfully treat complex and challenging pathologies such as cardiovascular diseases or chronic inflammatory conditions. Bone marrow-derived mesenchymal stromal cells (BMSCs) are in the limelight of these efforts, initially, trying to exploit their natural properties by direct transplantation. Extensive research on the therapeutic use of BMSCs shed light on a number of key aspects of BMSC physiology including the importance of oxygen in the control of BMSC phenotype. These efforts also led to a growing number of evidence indicating that the beneficial therapeutic effects of BMSCs can be mediated by BMSC-secreted agents. Further investigations revealed that BMSC-excreted extracellular vesicles could mediate the potentially therapeutic effects of BMSCs. Here, we review our current understanding of the relationship between low oxygen conditions and the effects of BMSC-secreted extracellular vesicles focusing on the possible medical relevance of this interplay. FAU - Gala, Dhir AU - Gala D AD - Department of Molecular Cell Biology, School of Medicine, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 1JQ, UK. FAU - Mohak, Sidhesh AU - Mohak S AD - Department of Molecular Cell Biology, School of Medicine, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 1JQ, UK. FAU - Fabian, Zsolt AU - Fabian Z AD - Department of Molecular Cell Biology, School of Medicine, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston PR1 1JQ, UK. LA - eng PT - Journal Article PT - Review DEP - 20210826 PL - Switzerland TA - Cells JT - Cells JID - 101600052 RN - S88TT14065 (Oxygen) SB - IM MH - Animals MH - Bone Marrow Cells/cytology MH - Cell Differentiation/physiology MH - Cell Hypoxia/physiology MH - Cell- and Tissue-Based Therapy/methods MH - Extracellular Vesicles/*metabolism/transplantation MH - Humans MH - Mesenchymal Stem Cell Transplantation/*methods MH - Mesenchymal Stem Cells/*metabolism/physiology MH - Oxygen/metabolism PMC - PMC8465344 OTO - NOTNLM OT - bone marrow-derived stromal cells OT - extracellular vesicles OT - hypoxia COIS- Authors declare no conflicts of interest. EDAT- 2021/09/29 06:00 MHDA- 2021/11/20 06:00 PMCR- 2021/08/26 CRDT- 2021/09/28 01:03 PHST- 2021/08/08 00:00 [received] PHST- 2021/08/23 00:00 [revised] PHST- 2021/08/24 00:00 [accepted] PHST- 2021/09/28 01:03 [entrez] PHST- 2021/09/29 06:00 [pubmed] PHST- 2021/11/20 06:00 [medline] PHST- 2021/08/26 00:00 [pmc-release] AID - cells10092199 [pii] AID - cells-10-02199 [pii] AID - 10.3390/cells10092199 [doi] PST - epublish SO - Cells. 2021 Aug 26;10(9):2199. doi: 10.3390/cells10092199.