2015
DOI: 10.1016/j.atherosclerosis.2015.04.008
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Effects of estrogen on growth and smooth muscle differentiation of vascular wall-resident CD34+ stem/progenitor cells

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Cited by 12 publications
(8 citation statements)
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References 39 publications
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“…The current study shows that exposure to E2 during the intermediate steps in the differentiation from hPSC to SMCs promotes gene expression of myogenic markers only in female hPSC-derived pSMCs. This is consistent with female animal data demonstrating that E2 treatment can promote the differentiation of female rat wall-resident CD34 + progenitor cells into vascular SMCs [50]. Our data also revealed that E2 treatment during the terminal differentiation step from pSMCs to SMCs did not affect gene expression of myogenic makers, suggesting that optimization of stem cell therapies for SMC with hormonal manipulation should be targeted at the intermediate stage of SMC differentiation.…”
Section: Discussionsupporting
confidence: 92%
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“…The current study shows that exposure to E2 during the intermediate steps in the differentiation from hPSC to SMCs promotes gene expression of myogenic markers only in female hPSC-derived pSMCs. This is consistent with female animal data demonstrating that E2 treatment can promote the differentiation of female rat wall-resident CD34 + progenitor cells into vascular SMCs [50]. Our data also revealed that E2 treatment during the terminal differentiation step from pSMCs to SMCs did not affect gene expression of myogenic makers, suggesting that optimization of stem cell therapies for SMC with hormonal manipulation should be targeted at the intermediate stage of SMC differentiation.…”
Section: Discussionsupporting
confidence: 92%
“…It is interesting to note that while estrogen increased mitosis of male pSMCs, E2 treatment did not enhance the differentiation of male pSMCs from the VPC intermediate. Published data suggest that E2 can have different effects on CD34 + progenitor cells [50, 55]; it can accelerate the proliferation of undifferentiated CD34 + progenitor cells, while promoting further differentiation in differentiating progenitor cells. Thus, it is possible that there was a relatively higher fraction of undifferentiated VPCs that persisted in the male pSMC population compared to female pSMCs after FACS sorting.…”
Section: Discussionmentioning
confidence: 99%
“…Previous research has demonstrated that E2 upregulated MHC-I and downregulated MHC-IIb expression in MDSCs [36]. Another study revealed that the ER/PI3K/Akt/SSH1L axis, but not MAPK signaling, is potentially responsible for the effects of estrogen on MSCs [37]. These findings suggest that the processes involve different mechanisms, which should be elucidated in further studies.…”
Section: Discussionmentioning
confidence: 90%
“…These conclusions are similar to the results of previous studies showing that E2 has dual effects on vascular wall-resident stem/progenitor cells. E2 was found to promote the proliferation of undifferentiated stem/progenitor cells by enhancing the binding of the pELK1-SRF complex to the c-Fos gene, whereas it accelerated the myogenic differentiation of differentiating stem/progenitor cells through an SRC3-mediated mechanism [37]. …”
Section: Discussionmentioning
confidence: 99%
“…-154 - It has been widely reported that the SRF binding element (CArG) within the promoter region of SMC-specific genes is important not only for SMC gene regulation but also for SMC differentiation from vascular CD34 + stem/progenitor cells and normal stem/progenitor cells (Miano et al, 2004, Wu et al, 2015. Therefore, we asked whether the SRF element also plays a role in MECP2-mediated SMC gene…”
mentioning
confidence: 98%