Transcriptomic Profiling of Calcitriol-Mediated Gene Expression Changes in CaSki Human Cervical Cancer Cell Line
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PROVIDER: PRJNA1112446 | ENA |
REPOSITORIES: ENA
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Project description:The vitamin D endocrine system, primarily mediated by its principal metabolite calcitriol and the vitamin D receptor (VDR), plays a critical role in numerous physiological processes in humans, ranging from calcium metabolism to the prevention of various tumors, including cervical cancer. To comprehensively understand the genomic regulatory effects of calcitriol in a cervical cancer model, this study investigated the transcriptional changes induced by calcitriol in CaSki cells, a cervical cell line harboring multiple copies of HPV16, the primary causal agent of cervical cancer. Initially, we characterized the presence and functionality of the VDR and its co-receptor retinoid X receptor in CaSki cells via immunofluorescence. Subsequently, we assessed the global transcriptome response to calcitriol treatment compared to its vehicle control using microarray analysis, with validation conducted through qPCR and western blot analysis. Our findings revealed that calcitriol regulated over 1000 protein-coding genes, along with some long non-coding RNAs and microRNAs. Overall, calcitriol exerted a repressive effect on the CaSki cell transcriptome, suppressing twice as many genes as it induced. Functional analysis of the results demonstrated that calcitriol suppressed crucial cellular processes involved in cell progression, particularly inhibiting cell proliferation, a finding validated in this study. These results suggest that in this advanced cervical cancer model, calcitriol exhibits a significant antitumor effect by blocking critical processes for tumor progression, underscoring the importance of maintaining adequate vitamin D nutritional status for cervical cancer prevention.
2025-02-25 | GSE267715 | GEO
Project description:Transcriptional profiling of human cervical squamous cell carcinoma cell line CaSki comparing adherent cultured cells with spheres cultured in serum free culture medium. Goal was to identify candidate antigens for immunotherapy targeting cancer stem cells. Two-condition experiment, CaSki vs. CaSki-sphere cells.
2015-03-04 | E-GEOD-65499 | biostudies-arrayexpress
Project description:Microarry based whole genome expression analysis was done for the more tumorigenic CaSki spheroids cultures and the less tumorigenic CaSki adherent cultures to identify signaling mechanisms that vary between the two populations. Subsequent to this, an independent array was done to characterize the differences in gene expression between the cancer stem cell-like Lin-CD66+ and the bulk Lin- CD66- cells isolated from primary human cervical carcinomas. The second array was custom-designed and had genes implicated in stemness, epithelial differentiation, signaling pathways implicated in stemness (Notch and Wnt) and cell cylce-regulation. Microarray analysis of CaSki cell line grown as spheroids and adherent conditions
2011-06-09 | E-GEOD-26417 | biostudies-arrayexpress
Project description:Transcriptional profiling of human cervical squamous cell carcinoma cell line CaSki comparing adherent cultured cells with spheres cultured in serum free culture medium. Goal was to identify candidate antigens for immunotherapy targeting cancer stem cells.
2015-03-04 | GSE65499 | GEO
Project description:Dicer is a key endoribonuclease of the microRNA biogenetic machinery. Downregulation of Dicer has been associated with aberrant expression of microRNAs and the promotion of tumorigenesis. Calcitriol, the hormonal form of vitamin D3, increases microRNA expression in tumor cells, but the mechanism is not yet understood. Given the essential role of Dicer in microRNAs biogenesis, the purpose of this study was to evaluate whether this gene is a target for calcitriol and to explore the effects of this hormone on microRNA expression. Our findings demonstrate that calcitriol increased Dicer mRNA and protein in SiHa and HeLa cervical cancer cells, which expressed the vitamin D receptor. The inductive effect of calcitriol on Dicer mRNA was not observed in C33-A cells lacking this nuclear receptor. To explore the potential effect of Dicer upregulation by calcitriol on microRNA processing, we performed a microRNA profiling study in SiHa cells treated with calcitriol. The analysis of microRNA expression revealed that this hormone promotes the maturation of a subset of microRNAs with potential regulatory function in cancer pathways. Among these, miR-22 and miR-296-3p have already been associated with tumor-supressive effects. Our results suggest that Dicer upregulation by calcitriol could be associated, at least in part, with an increase in the maturation of a subset of tumor-suppressor microRNAs in cervical cancer cells.
2014-11-30 | GSE61829 | GEO
Project description:Microarry based whole genome expression analysis was done for the more tumorigenic CaSki spheroids cultures and the less tumorigenic CaSki adherent cultures to identify signaling mechanisms that vary between the two populations. Subsequent to this, an independent array was done to characterize the differences in gene expression between the cancer stem cell-like Lin-CD66+ and the bulk Lin- CD66- cells isolated from primary human cervical carcinomas. The second array was custom-designed and had genes implicated in stemness, epithelial differentiation, signaling pathways implicated in stemness (Notch and Wnt) and cell cylce-regulation.
2011-06-09 | GSE26417 | GEO
Project description:Four cervical carcinoma cell lines (C4I, CaSki, HeLa, SiHa) were treated with epigenetic modifying drugs 5-aza-2’-deoxycytidine and trichostatin A. Such treatment leads to reactivation of genes that are epigenetically silenced in cancer by aberrant methylation; reactivated genes were then identified by microarray profiling. Subsets consist of 2 biological repeats and 2 dye-flip experiments for each repeat for CaSki cell line, and 3 repeats, each with 2 dye-flip experiments for C4I, HeLa, Caski cell lines. The identification of reactivated genes, their selection for validation experiments, and final identification of 6 genes that are significantly more often hypermethylated in cervical carcinoma clinical specimens is described in (manuscript submitted). Keywords: other
2005-07-17 | GSE2097 | GEO
Project description:Five human cervical cancer cell lines (HeLa, CaSki, SiHa, C-33A, SW756) and one human normal cervical epithelial cell line HcerEpic were included in the study. Microarray based circRNA expression profiles were acquired using the Arraystar Human circRNA Array (8x15K, Arraystar). We identified circRNAs differentially expressed in human cervical cancer cell lines compared to human normal cervical epithelial HcerEpic cells (control).
2018-04-27 | GSE113696 | GEO
Project description:Persistent infection by high-risk human papillomaviruses (HPVs) is associated with the development of cervical cancer and a subset of anogenital and head and neck squamous cell carcinomas. Abnormal expression of cellular microRNAs (miRNAs) plays an important role in the development of cancer, including HPV-related tumors. MiRNA expression profile was investigated by microrray analysis in the HPV-positive cervical cancer cell lines SiHa (HPV16-positive cell line derived from a cervical squamous cell carcinoma), CaSki (HPV16-positive cell line derived from a metastatic cervical epidermoid carcinoma), and HeLa (HPV18-positive cell line derived from a cervical adenocarcinoma) and compared with primary HFKs and C33a (HPV-negative cervical cell line).
2018-01-16 | E-MTAB-6361 | biostudies-arrayexpress
Project description:Microarry based whole genome expression analysis was done for the more tumorigenic CaSki spheroids cultures and the less tumorigenic CaSki adherent cultures to identify signaling mechanisms that vary between the two populations. Subsequent to this, an independent array was done to characterize the differences in gene expression between the Lin-CD66+ and the Lin- CD66- cells isolated from primary human cervical carcinomas. The second array was custom-designed and had genes implicated in stemness, epithelial differentiation, signaling pathways implicated in stemness (Notch and Wnt) and cell cylce-regulation. Refer to individual Series. This SuperSeries is composed of the following subset Series: GSE26417: Microarray analysis of CaSki cell line grown as spheroids and adherent conditions GSE26418: Microarray analysis of Lin- CD66+ and Lin- CD66- cells isolated from primary human cervical cancer
2011-06-09 | E-GEOD-26419 | biostudies-arrayexpress