Late recurrence-associated long non-coding RNA NR2F1 antisense 1 (NR2F1-AS1)
Ontology highlight
ABSTRACT: Long non-coding RNA NR2F1 antisense RNA1 (lncRNA NR2F1-AS1) was identified as the main candidate associated to late recurrence in ER-positive breast cancer clinical samples. Gain-of-function of NR2F1-AS1 induced the expression of dormancy-inducers BMP4 and DEC2, and upregulated pluripotency markers NANOG and OCT4. Representative pathways entailed to metastatic events such as HER2/Neu, hypoxia, EMT and inflammatory-response were also found enriched.
Project description:Long non-coding RNA NR2F1 antisense RNA1 (lncRNA NR2F1-AS1) was identified as the main candidate associated to late recurrence in ER-positive breast cancer clinical samples. Gain-of-function of NR2F1-AS1 induced the expression of dormancy-inducers BMP4 and DEC2, and upregulated pluripotency markers NANOG and OCT4. Representative pathways entailed to metastatic events such as HER2/Neu, hypoxia, EMT and inflammatory-response were also found enriched.
Project description:Our data showed that NR2F1-AS1 functions oncogenic roles in gastric cancer (GC), but the underlying molecular mechanism remains largely unknown to date. To explore the function of lncRNA NR2F1-AS1 in gastric cancer, loss-of-function and RNA sequencing studies were performed in SGC7901 cell line. The results showed that depletion of NR2F1-AS1 significantly decreased the expression of VAMP7. Interestingly, VAMP7 was also a target gene of miR-29a-3p. Our data showed that NR2F1-AS1 promotes GC progression through regulating miR-29a/VAMP7 axis.
Project description:We show that the epithelial-like and mesenchymal-like subpopulations of breast cancer stem-like cells (BCSCs) demonstrate different levels dormancy and tumorigenicity in lungs. The long non-coding RNA (lncRNA) molecule NR2F1-AS1 (NAS1) is up-regulated in the dormant BCSC subpopulation, and functionally promotes tumor dissemination but reduces proliferation in lungs. Mechanically, NAS1 promotes internal ribosome entry site (IRES)-mediated NR2F1 translation, leading to inhibition of ΔNp63 transcription by NR2F1. Further, ΔNp63 downregulation results in epithelial-mesenchymal transition, reduced tumorigenicity and enhanced dormancy of cancer cells in lungs.
Project description:Prostate cancer is the most common cancer in men and AR downstream signalings promote prostate cancer cell proliferation. We identified a novel androgen-regulated long non-coding (lnc) RNA, SOCS2-AS1. In order to investigate the SOCS2-AS1 function in prostate cancer cells, we performed gene expression in AR-positive prostate cancer cell lines (LNCaP and LTAD) after siSOCS2-AS1 or siSOCS2 treatment. We also treated cells with vehicle or androgen to analyzed the effects of siSOCS2-AS1 on AR function. Observation of androgen dependent gene expression changes after treatmet with siSOCS2-AS1 with microarray.
Project description:Analysis of tiling array data identified 358 genomic regions commonly enriched by the AS1 and T7 antibody datasets. AS1 antibody data set (AS1 antibody versus mock) and the T7 antibody data set (T7 antibody versus mock)
Project description:AS1 and AS2 encode MYB related protein and AS2-domain containing protein, respectively and may regulate transcription. These genes are involved in the determination of axes of leaves of Arabidopsis thaliana. To know the gene regulation in the leaf development, expression profile among wild-type, as1 and as2 mutants and AS2 overexpression plants were compaired. shoot apices from as1-1, as2-1, AS2 overexpressing, and wild type embryos