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Updated: Apr 11, 2026

Silencing of BRCA2 to Identify Novel BRCA2-regulated Biological Functions in Cultured Human Cells
Published on: August 12, 2015
LncRNA BCAR4 wires up signaling transduction in breast cancer
Zhen Xing1, Peter K Park, Chunru Lin
1a Department of Molecular and Cellular Oncology; MD Anderson Cancer Center; The University of Texas ; Houston , TX , USA.
Abstract:
Long noncoding RNAs (lncRNAs) are dysregulated in many cancer types and are believed to play crucial roles in regulating several hallmarks of cancer biology. Currently, most studies support the concept that lncRNAs are involved in either transcriptional or post-transcriptional processes via binding/targeting epigenetic modifiers or hRNP complexes. The discovery of new biological functions of lncRNA and novel RNA binding proteins suggests that lncRNAs may be implicated in a broad spectrum of biological processes such as signal transduction, allosteric regulation of cytoplasmic enzymatic activities, among other potential processes. In a recent report that we have made, based on open-ended lncRNA pulldown technology and a series of systematic analyses, we suggest that lncRNAs also play critical roles in the regulation of noncanonical Hedgehog/GLI 2 signal transduction pathways in cancer cells, which further broadens the scope of known lncRNA functions and aids in the discovery and design of more effective and evidence-based therapeutic targets for the treatment of human cancers and other diseases.
Insights
Long noncoding RNAs (lncRNAs) regulate cancer biology. Our study reveals lncRNAs also control noncanonical Hedgehog/GLI signaling, expanding their known functions and offering new therapeutic targets for cancer.
Area of Science:
- Molecular Biology
- Cancer Biology
- Genetics
Background:
- Long noncoding RNAs (lncRNAs) are increasingly recognized for their roles in cancer.
- Existing research implicates lncRNAs in transcriptional and post-transcriptional gene regulation.
- Emerging evidence suggests broader functions for lncRNAs in cellular processes.
Purpose of the Study:
- To investigate the role of lncRNAs in noncanonical Hedgehog/GLI signaling pathways in cancer.
- To expand the understanding of lncRNA functions beyond established roles.
- To identify novel therapeutic targets for cancer treatment.
Main Methods:
- Open-ended lncRNA pulldown technology.
- Systematic biological and pathway analyses.
- Cancer cell line studies.
Main Results:
- Demonstrated that lncRNAs regulate noncanonical Hedgehog/GLI signal transduction in cancer cells.
- Identified a novel function for lncRNAs in regulating key cancer signaling pathways.
- Provided evidence for lncRNAs as critical regulators in cancer biology.
Conclusions:
- lncRNAs play critical roles in regulating noncanonical Hedgehog/GLI signaling pathways.
- This discovery broadens the known functions of lncRNAs in biological processes.
- lncRNAs represent promising targets for developing novel cancer therapies.
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