Project description:Through integrative analysis of clinical breast cancer gene expression datasets, cell line models of breast cancer progression, and mutation data from cancer genome resequencing studies, we have identified RNA binding motif protein 47 (RBM47) as a candidate suppressor of breast cancer metastasis. RBM47 inhibited breast cancer progression in experimental models. Transcriptome-wide analysis of RBM47 localization by HITS-CLIP revealed widespread binding to mRNAs, preferentially at the 3' UTRs. RBM47 altered the abundance of a subset of its target mRNAs. Some of the mRNAs stabilized by RBM47, as exemplified by dickkopf WNT signaling pathway inhibitor 1 (DKK1), mediate tumor suppressive effects downstream of RBM47. This work identifies RBM47 as a suppressor of breast cancer progression and highlights the potential of global RNA modulatory events as a source of metastasis-promoting phenotypic traits. Cancer cells transduced with doxycycline-inducible wildtype RBM47 or the RBM47-I281fs mutant, treated with increasing concentrations of doxycycline.

2014-06-11 | E-GEOD-53779 | biostudies-arrayexpress

PTHrP regulates fatty acid metabolism via novel lncRNA in breast cancer initiation and progression models

Project description:The 5-year survival rate for women with metastatic breast cancer is 29%. Potential biomarkers identification is important for new therapeutic treatment in affected patients. Previous studies have shown that Parathyroid hormone-related peptide (PTHrP) plays a critical role in breast cancer growth and metastasis. The aim of our study was to use a genetically modified breast cancer mouse model to precisely examine the role of PTHrP from early primary breast cancer initiation to late progression. We identified a novel lncRNA, a new target for fatty acid metabolism that can be regulated by PTHrP in our unique mouse breast cancer model. We confirmed that a potential human lncRNA, OLMALINC, plays a similar role in fatty acid metabolism that can be regulated by PTHrP. Therefore, we validated our mouse finding in the human breast cancer cell lines. Genetically engineered mouse models provide valuable tools to study the molecular progression for breast cancer metastasis.

2023-12-30 | GSE225877 | GEO

PTHrP regulates fatty acid metabolism via novel lncRNA in breast cancer initiation and progression models

Project description:PTHrP regulates fatty acid metabolism via novel lncRNA in breast cancer initiation and progression models

| PRJNA937747 | ENA