PMID- 24009878 OWN - NLM STAT- PubMed-not-MEDLINE DCOM- 20130906 LR - 20220410 IS - 2001-3078 (Print) IS - 2001-3078 (Electronic) IS - 2001-3078 (Linking) VI - 1 DP - 2012 TI - Stable cell fate changes in marrow cells induced by lung-derived microvesicles. LID - 10.3402/jev.v1i0.18163 [doi] AB - BACKGROUND: Interest has been generated in the capacity of cellular-derived microvesicles to alter the fate of different target cells. Lung, liver, heart and brain-derived vesicles can alter the genetic phenotype of murine marrow cells; however, the stability of such changes and the mechanism of these changes remain unclear. In the present work, we show that lung-derived microvesicles (LDMV) alter the transcriptome and proteome of target marrow cells initially by mRNA and regulator(s) of transcription transfer, but that long term phenotype change is due solely to transfer of a transcriptional regulator with target cell. IN VIVO STUDIES: Whole bone marrow cells (WBM) were co-cultured with LDMV (both isolated from male C57BL/6 mice) or cultured alone (control). One week later, cultured WBM was transplanted into lethally-irradiated female C57BL/6 mice. Recipient mice were sacrificed 6 weeks later and WBM, spleens and livers were examined for the presence of lung-specific gene expression, including surfactants A, B, C and D, aquaporin-5, and clara cell specific protein, via real-time RT-PCR. Immunohistochemistry was also performed on lungs to determine the number of transplanted marrow-derived (Y chromosome+) type II pneumocytes (prosurfactant C+). Mice transplanted with LDMV co-cultured WBM expressed pulmonary epithelial cell genes in the cells of their bone marrow, livers and spleens and over fivefold more transplanted marrow-derived Y+/prosurfactant C+cells could be found in their lungs (vs. control mice). IN VITRO STUDIES: WBM (from mice or rats) was cultured with or without LDMV (from mice or rats) for 1 week then washed and cultured alone. WBM was harvested at 2-week intervals for real-time RT-PCR analysis, using species-specific surfactant primers, and for Western Blot analysis. Proteomic and microRNA microarray analyses were also performed on cells. LDMV co-cultured WBM maintained expression of pulmonary epithelial cell genes and proteins for up to 12 weeks in culture. Surfactant produced at later time points was specific only to the species of the marrow cell in culture indicating de novo mRNA transcription. These findings, in addition to the altered protein and microRNA profiles of LDMV co-cultured WBM, support a stable transcriptional mechanism for these changes. CONCLUSIONS: These data indicate that microvesicle alteration of cell fate is robust and long-term and represents an important new aspect of cellular biology. FAU - Aliotta, Jason M AU - Aliotta JM AD - Division of Hematology and Oncology, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence RI 02903, USA ; Division of Pulmonary, Sleep and Critical Care Medicine, Rhode Island Hospital, The Warren Alpert Medical School of Brown University, Providence RI 02903, USA. FAU - Pereira, Mandy AU - Pereira M FAU - Li, Ming AU - Li M FAU - Amaral, Ashley AU - Amaral A FAU - Sorokina, Arina AU - Sorokina A FAU - Dooner, Mark S AU - Dooner MS FAU - Sears, Edmund H AU - Sears EH FAU - Brilliant, Kate AU - Brilliant K FAU - Ramratnam, Bharat AU - Ramratnam B FAU - Hixson, Douglas C AU - Hixson DC FAU - Quesenberry, Peter J AU - Quesenberry PJ LA - eng GR - P20 GM103468/GM/NIGMS NIH HHS/United States GR - K08 HL086868/HL/NHLBI NIH HHS/United States GR - R01 HL103726/HL/NHLBI NIH HHS/United States GR - P20 RR025179/RR/NCRR NIH HHS/United States GR - P20 GM103421/GM/NIGMS NIH HHS/United States PT - Journal Article DEP - 20120416 PL - United States TA - J Extracell Vesicles JT - Journal of extracellular vesicles JID - 101610479 PMC - PMC3760634 OTO - NOTNLM OT - bone marrow cells OT - bone marrow transplant OT - lung OT - microvesicles OT - transcription factor EDAT- 2012/01/01 00:00 MHDA- 2012/01/01 00:01 PMCR- 2012/04/16 CRDT- 2013/09/07 06:00 PHST- 2012/02/19 00:00 [received] PHST- 2012/03/10 00:00 [revised] PHST- 2012/03/12 00:00 [accepted] PHST- 2013/09/07 06:00 [entrez] PHST- 2012/01/01 00:00 [pubmed] PHST- 2012/01/01 00:01 [medline] PHST- 2012/04/16 00:00 [pmc-release] AID - 18163 [pii] AID - 10.3402/jev.v1i0.18163 [doi] PST - epublish SO - J Extracell Vesicles. 2012 Apr 16;1. doi: 10.3402/jev.v1i0.18163. eCollection 2012.