PMID- 27419126 OWN - NLM STAT- MEDLINE DCOM- 20170214 LR - 20220408 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2016 DP - 2016 TI - Molecular Imaging for Comparison of Different Growth Factors on Bone Marrow-Derived Mesenchymal Stromal Cells' Survival and Proliferation In Vivo. PG - 1363902 LID - 10.1155/2016/1363902 [doi] LID - 1363902 AB - Introduction. Bone marrow-derived mesenchymal stromal cells (BMSCs) have emerged as promising cell candidates but with poor survival after transplantation. This study was designed to investigate the efficacy of VEGF, bFGF, and IGF-1 on BMSCs' viability and proliferation both in vivo and in vitro using bioluminescence imaging (BLI). Methods. BMSCs were isolated from beta-actin-Fluc(+) transgenic FVB mice, which constitutively express firefly luciferase. Apoptosis was induced by hypoxia preconditioning for up to 24 h followed by flow cytometry and TUNEL assay. 10(6) BMSCs with/without growth factors were injected subcutaneously into wild type FVB mice's backs. Survival of BMSCs was longitudinally monitored using bioluminescence imaging (BLI) for 5 weeks. Protein expression of Akt, p-Akt, PARP, and caspase-3 was detected by Western blot. Results. Hypoxia-induced apoptosis was significantly attenuated by bFGF and IGF-1 compared with VEGF and control group in vitro (P < 0.05). When combined with matrigel, IGF-1 showed the most beneficial effects in protecting BMSCs from apoptosis in vivo. The phosphorylation of Akt had a higher ratio in the cells from IGF-1 group. Conclusion. IGF-1 could protect BMSCs from hypoxia-induced apoptosis through activation of p-Akt/Akt pathway. FAU - Qiao, Hongyu AU - Qiao H AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Zhang, Ran AU - Zhang R AD - Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China. FAU - Gao, Lina AU - Gao L AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Guo, Yanjie AU - Guo Y AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Wang, Jinda AU - Wang J AD - Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China. FAU - Zhang, Rongqing AU - Zhang R AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Li, Xiujuan AU - Li X AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Li, Congye AU - Li C AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China. FAU - Chen, Yundai AU - Chen Y AD - Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China. FAU - Cao, Feng AU - Cao F AD - Department of Cardiology, Xijing Hospital, Fourth Military Medical University, Xi'an 710032, China; Department of Cardiology, Chinese PLA General Hospital, Beijing 100853, China. LA - eng PT - Journal Article DEP - 20160621 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (Actins) RN - 0 (Intercellular Signaling Peptides and Proteins) RN - EC 2.7.11.1 (Proto-Oncogene Proteins c-akt) RN - EC 3.4.22.- (Caspase 3) SB - IM MH - Actins/metabolism MH - Animals MH - Apoptosis/physiology MH - Bone Marrow/*metabolism/*physiology MH - Caspase 3/metabolism MH - Cell Proliferation/*physiology MH - Hypoxia/metabolism MH - Intercellular Signaling Peptides and Proteins/*metabolism MH - Longitudinal Studies MH - Luminescent Measurements/methods MH - Mesenchymal Stem Cells/*metabolism/*physiology MH - Mice MH - Mice, Transgenic/metabolism MH - Molecular Imaging/methods MH - Phosphorylation/physiology MH - Proto-Oncogene Proteins c-akt/metabolism MH - Signal Transduction/physiology PMC - PMC4932172 EDAT- 2016/07/16 06:00 MHDA- 2017/02/15 06:00 PMCR- 2016/06/21 CRDT- 2016/07/16 06:00 PHST- 2015/11/26 00:00 [received] PHST- 2016/01/19 00:00 [revised] PHST- 2016/02/16 00:00 [accepted] PHST- 2016/07/16 06:00 [entrez] PHST- 2016/07/16 06:00 [pubmed] PHST- 2017/02/15 06:00 [medline] PHST- 2016/06/21 00:00 [pmc-release] AID - 10.1155/2016/1363902 [doi] PST - ppublish SO - Biomed Res Int. 2016;2016:1363902. doi: 10.1155/2016/1363902. Epub 2016 Jun 21.