Yuyan Wang1, Liang Tang1, Fei Zhu1, Ming Jia1. 1. Department of Plastic Surgery, Hangzhou First People's Hospital, Nanjing Medical University Hangzhou, Zhejiang 310006, P.R China.
Abstract
PURPOSE: This study aimed to clarify the effect of platelet-rich plasma (PRP) on human hair dermal papilla cell (HHDPC) viability and expression levels of alkaline phosphatase (ALP) and versican. METHODS: Eight healthy volunteers were enrolled, and different concentrations of PRP and platelet-poor plasma (PPP) were preparedby 2-step centrifugation method. HHDPCs were thencultivated. To identify the best incubating time of HHDPCs and plasmaconcentration, cell viability was investigated by MTT assays. In PRP- or PPP-treated HHDPCs, the mRNA levels of versican and ALP were checked by real-time quantitative PCR (qRT-PCR). RESULTS: Both PRP (5% and 10%) and PPP (5% and 10%) could significantly promote cell viability of the HHDPCs (p4) in 72 h group, while the effect of 10% PRP on HHDPC viability was less than that of 5% PRP. qRT-PCR showed that PRP could significantly increase mRNA levels of ALP and versican in HHDPCs (p4) when compared with the control group. Meanwhile,Western blot indicated an obviously increased protein level of ALP and versican in PRP-treated HHDPCs (p4). CONCLUSION: PRP could promote cell viability of HHDPCs. Besides, 5% PRP could significantly increase ALP and versican expression in both mRNA and protein levels in HHDPCs (p4). IJCEP
PURPOSE: This study aimed to clarify the effect of platelet-rich plasma (PRP) on human hair dermal papilla cell (HHDPC) viability and expression levels of alkaline phosphatase (ALP) and versican. METHODS: Eight healthy volunteers were enrolled, and different concentrations of PRP and platelet-poor plasma (PPP) were preparedby 2-step centrifugation method. HHDPCs were thencultivated. To identify the best incubating time of HHDPCs and plasmaconcentration, cell viability was investigated by MTT assays. In PRP- or PPP-treated HHDPCs, the mRNA levels of versican and ALP were checked by real-time quantitative PCR (qRT-PCR). RESULTS: Both PRP (5% and 10%) and PPP (5% and 10%) could significantly promote cell viability of the HHDPCs (p4) in 72 h group, while the effect of 10% PRP on HHDPC viability was less than that of 5% PRP. qRT-PCR showed that PRP could significantly increase mRNA levels of ALP and versican in HHDPCs (p4) when compared with the control group. Meanwhile,Western blot indicated an obviously increased protein level of ALP and versican in PRP-treated HHDPCs (p4). CONCLUSION: PRP could promote cell viability of HHDPCs. Besides, 5% PRP could significantly increase ALP and versican expression in both mRNA and protein levels in HHDPCs (p4). IJCEP