Project description:To explore circular RNA (circRNA) expression profiling and their biological functions in bladder cancer, we surveyed the circRNA expression signature of 4 pairs of matched bladder cancer and para-cancer tissues from clinical patients using microarray. Hundreds of significantly changed circRNAs were identified. Our findings provide a novel perspective on transcriptional group and lay the foundation for future research of potential roles of circRNAs in bladder carcinoma.

2016-12-22 | GSE92675 | GEO

High-throughput RNA sequencing on circular RNA profiles of human bladder cancer tissues and normal bladder tissues

Project description:In order to find out circular RNAs profiles in human bladder cancer tissues and normal bladder tissues, we characterized circuclar RNA transcripts by performing RNA-Seq on ribosomal RNA-depleted total RNA from three pairs of human bladder cancer tissues and paired normal bladder tissues.A computational pipeline based on the anchor alignment of unmapped reads was used to identify circular RNAs. Collectively, we identified16,535 distict circular RNAs, most of them origined from exons (88.96%), others from introns, linc RNA, intergenic region, 3’UTR and 5’UTR. Among all these circRNAs, 571 circRNAs were differentially expressed between bladder cancer tissues and normal bladder tissues, and 524 circRNAs were downregulated in bladder cancer tissues (91.2%), others were upreguluated. These significantly differential expressed circular RNA might have regulatory function in bladder cancer, and worth to be further explored.

2017-08-04 | GSE97239 | GEO

Microarray expression profile of circular RNAs in cervical cancer

Project description:Microarray expression profile of circular RNAs in cervical cancer

| PRJNA614955 | ENA

Microarray profiling analysis of circular RNAs expression in bladder cancer [lncRNA profiling]

Project description:Background: Growing evidence has shown the association of long noncoding RNA/microRNA/mRNA is implicated in tumor initiation, development, and progression. Long noncoding RNA (lncRNA) HAND2-AS1 exhibits anti-cancer effects in diverse cancers. However, the knowledge of HAND-AS1 in bladder cancer remains largely unknown. The present study aims to investigate the effects and mechanisms of HAND-AS1 in bladder cancer progression. Methods: The expression of lncRNA was analyzed by RT2 lncRNA PCR Arrays. The differential expressed lncRNAs were further verified by qRT-PCR. The relationship between lncRNA expression and clinical features was evaluated with Spearman correlation test. Cell proliferation was measured by MTT assay. Cell apoptosis percentage was detected by ANNEXIN V-PI analysis. The promoter activity was illustrated by Luciferase assay, and the change of microRNA and protein was detected by qRT-PCR and western blot, separately. Results: The expression of HAND2-AS1 declined in bladder cancer and correlated with depth of invasion and grades negatively. Restoration of HAND2-AS1 hampered cell growth by provoking cell apoptosis. Furthermore, one of the HAND2-AS1 sponge, miR-146, was found overexpression in bladder cancer tissue and cell lines. Expression of miR-146 related to HAND2-AS1 expression negatively. One of the targeted genes of miR-146, retinoic acid receptor beta (RARB) was downregulated in bladder cancer. In addition, the expression of RARB related to miR-146 negatively. Lost-of-function and gain-of-function experiments were used to identify the mechanisms underlying association of lncRNA HAND2-AS1: miR-146: RARB. miR-146 targeted RARB directly and hindered RARB-mediate apoptosis. However, the hindrance was impaired by HAND2-AS1 notably. Conclusion: HAND2-AS1 diminished miR-146 expression, thereby releasing the suppression of miR-146 on RARB-mediated apoptosis, promoting bladder cancer regression.

2020-11-18 | GSE140585 | GEO

Microarray profiling analysis of circular RNAs expression in bladder cancer [miRNA profiling]

2020-11-18 | GSE140584 | GEO

Microarray analysis with KSHV infection and enrichment for circular RNAs

Project description:Microarray analysis with KSHV infection and enrichment for circular RNAs

| PRJNA491438 | ENA

Microarray Expression Analysis of Circular RNAs in papillary thyroid carcinoma.

Project description:Microarray Expression Analysis of Circular RNAs in papillary thyroid carcinoma.

| PRJNA725149 | ENA