title: Gene expression profiling changes induced by a novel Gemini Vitamin D derivative during the progression of breast cancer.
abstract: We investigated gene expression changes induced by a novel Gemini Vitamin D(3) analog, RO-438-3582 (1alpha,25-dihydroxy-20S-21(3-hydroxy-3-methyl-butyl)-23-yne-26,27-hexafluoro-cholecalciferol, Ro3582), in a unique human breast MCF10 model. We used two breast epithelial cell lines from this model, namely MCF10AT1 (Ha-ras oncogene transfected MCF10A, early premalignant) and MCF10CA1a (fully malignant and metastatic derived from the MCF10AT1 line). We analyzed gene expression changes induced by Ro3582 using GeneChip technology, quantitative RT-PCR, Western blot analysis, or a gene transcription assay. Interestingly, we found distinct gene expression profile differences between Ro3582-induced response of the early premalignant MCF10AT1 and the malignant and metastatic MCF10CA1a cell lines. Moreover, while the Gemini Vitamin D(3) analog Ro3582 modulated the expression of several Vitamin D target genes such as the 24-hydroxylase, CD14, osteocalcin, and osteopontin in both cell lines, Ro3582 regulated many genes involved in cell proliferation and apoptosis, cell adhesion, invasion, angiogenesis as well as cell signaling pathways, such as the BMP and TGF-beta systems, differently in the two cell lines. The Gemini Vitamin D(3) analog Ro3582 induced more significant gene changes in the early premalignant MCF10AT1 cells than in the malignant metastatic MCF10CA1a cells, suggesting that Gemini Vitamin D(3) analogs may be more effective in preventing the progression of an early stage of breast carcinogenesis than in treating late stage breast cancer.
authors.affiliation: Department of Chemical Biology, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, Piscataway, 08854, USA.
authors.forename: Hong Jin
authors.initials: HJ
authors.lastname: Lee
authors.forename: Hao
authors.initials: H
authors.lastname: Liu
authors.forename: Catherine
authors.initials: C
authors.lastname: Goodman
authors.forename: Yan
authors.initials: Y
authors.lastname: Ji
authors.forename: Hubert
authors.initials: H
authors.lastname: Maehr
authors.forename: Milan
authors.initials: M
authors.lastname: Uskokovic
authors.forename: Daniel
authors.initials: D
authors.lastname: Notterman
authors.forename: Michael
authors.initials: M
authors.lastname: Reiss
authors.forename: Nanjoo
authors.initials: N
authors.lastname: Suh
mesh_terms: D017209:Apoptosis / Q000235:genetics; D015153:Blotting, Western; D001943:Breast Neoplasms / Q000235:genetics / Q000378:metabolism / Q000473:pathology; D002117:Calcitriol / Q000031:analogs & derivatives* / Q000737:chemistry / Q000494:pharmacology; D002448:Cell Adhesion / Q000235:genetics; D045744:Cell Line, Tumor; D002465:Cell Movement / Q000235:genetics; D049109:Cell Proliferation / Q000187:drug effects*; D004305:Dose-Response Relationship, Drug; D015536:Down-Regulation / Q000187:drug effects; D004847:Epithelial Cells / Q000187:drug effects / Q000378:metabolism / Q000473:pathology; D005260:Female; D020869:Gene Expression Profiling; D015972:Gene Expression Regulation, Neoplastic / Q000187:drug effects* / Q000235:genetics; D006801:Humans; D015394:Molecular Structure; D009389:Neovascularization, Pathologic / Q000235:genetics / Q000378:metabolism; D020411:Oligonucleotide Array Sequence Analysis; D020133:Reverse Transcriptase Polymerase Chain Reaction; D015398:Signal Transduction / Q000235:genetics; D013329:Structure-Activity Relationship; D016212:Transforming Growth Factor beta / Q000235:genetics / Q000378:metabolism; D015854:Up-Regulation / Q000187:drug effects
chemical_list: C411462:1,25-dihydroxy-21-(3-hydroxy-3-methylbutyl)vitamin D(3); C510609:Ro43 83582; D016212:Transforming Growth Factor beta; D002117:Calcitriol