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Transcriptional profiling and Wnt signaling activation in proliferation of human hepatic stellate cells induced by PDGF-BB / 대한간학회지
Article de En | WPRIM | ID: wpr-161891
Bibliothèque responsable: WPRO
ABSTRACT
BACKGROUND/AIMS: This study aimed to better understand gene expression profiles of human hepatic stellate cell (HSC) activation and the relationship with the Wnt signaling pathway. METHODS: The global transcript levels in platelet derived growth factor-BB (PDGF-BB)-stimulated hTERT HSCs were analyzed using oligonucleotide microarrays. Oligonucleotide microarrays with 19K human oligo chips were performed to obtain gene expression profiles associated with proliferation in human hTERT HSCs. The microarray data was verified by real time quantitative PCR and expression of the components of Wnt signaling was analyzed by Western blot. RESULTS: Microarray data showed 243 up-regulated and 265 down-regulated genes in PDGF-BB-treated HSCs. The changes in expression of glypican3 and BH3 interacting domain death agonist (BID) mRNA in real time quantitative PCR, especially among the highly up- or down-regulated genes, were statistically consistent with the microarray data. The Wnt signaling pathway components, frizzled10 (FZD10) and calcium/calmodulin-dependent protein kinase II alpha (CAMK2A), showed increased expression in the short time course microarray and the up-regulation of FZD10 also occurred at the protein level. Our data showed various gene expression profiles during activation of human HSC. CONCLUSIONS: The up-regulated expression of FZD10 and CAMK2A suggests that the Wnt/Ca2+ signaling pathway is active in hTERT HSCs and may participate in HSC activation and proliferation
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Texte intégral: 1 Indice: WPRIM Sujet Principal: Facteur de croissance dérivé des plaquettes / Transduction du signal / Régulation positive / Lignée cellulaire / Technique de Western / Réaction de polymérisation en chaîne / Séquençage par oligonucléotides en batterie / Analyse de profil d'expression de gènes / Récepteurs couplés aux protéines G / Agents angiogéniques Limites du sujet: Humans langue: En Texte intégral: The Korean Journal of Hepatology Année: 2009 Type: Article
Texte intégral: 1 Indice: WPRIM Sujet Principal: Facteur de croissance dérivé des plaquettes / Transduction du signal / Régulation positive / Lignée cellulaire / Technique de Western / Réaction de polymérisation en chaîne / Séquençage par oligonucléotides en batterie / Analyse de profil d'expression de gènes / Récepteurs couplés aux protéines G / Agents angiogéniques Limites du sujet: Humans langue: En Texte intégral: The Korean Journal of Hepatology Année: 2009 Type: Article