ABSTRACT
An induced pluripotent stem cell (iPSC) line, MUSIi010-A, was established by Sendai virus (SeV) transduction of scalp fibroblasts from a 59-year-old male with androgenetic alopecia (AGA). Pluripotency of the iPSC line was verified by immunofluorescence staining of pluripotent markers and by in vitro trilineage differentiation. The MUSIi010-A line was shown to retain normal karyotype and free of SeV vectors at passage 17. This iPSC line can be used for studying pathological mechanisms of AGA.
Subject(s)
Alopecia , Cellular Reprogramming Techniques , Fibroblasts , Induced Pluripotent Stem Cells , Scalp , Alopecia/metabolism , Alopecia/pathology , Cell Line , Fibroblasts/metabolism , Fibroblasts/pathology , Humans , Induced Pluripotent Stem Cells/metabolism , Induced Pluripotent Stem Cells/pathology , Male , Middle Aged , Scalp/metabolism , Scalp/pathologyABSTRACT
The present study aimed to investigate the effect of APAP treatment on the expression of pro-inflammatory cytokines in the astrocytes. The mouse astrocyte cells (C8-D1A) were treated with APAP at the concentration of 100 µM for 24 h, 16 and 28 days. The expressions of pro-inflammatory cytokines and NF-kB were determined using western blot analysis. Furthermore, the expression and localization of phosphorylation of NF-kB were detected by immunohistochemical and immunofluorescent analysis. The ultrastructure of C8-D1A cells was as well monitored. The results revealed that acute APAP treatment (24 h) had no effect on the expression of pro-inflammatory cytokines and pNF-kB. This treatment did not alter the ultrastructure of C8-D1A cells when compared with those in the control cells. However, the results obtained from the study on chronic APAP-treated cells (16 and 28 days) showed the different effect of APAP treatment. The results obtained from western blot analysis showed the increment of pro-inflammatory cytokine (IL-1ß and TNF-α) expressions and the activation of NF-kB signaling pathway. Nuclear translocation of pNF-kB and alteration of several cell structures were well observed in the C8-D1A cells with chronic APAP treatment. The results obtained from this study suggest that chronic APAP treatment can induce an upregulation of pro-inflammatory cytokines (IL-1ß and TNFα) in astrocytes. This alteration implies the involvement of the activation of NF-kB signaling pathway.
