RNA templating the epigenome: long noncoding RNAs as molecular scaffolds

Robert C Spitale1, Miao-Chih Tsai, Howard Y Chang

  • 1Howard Hughes Medical Institute and Program in Epithelial Biology, Stanford University School of Medicine, Stanford, CA, USA.

Epigenetics
|March 12, 2011
PubMed
Summary

Cells use scaffolding complexes to organize molecular interactions and maintain homeostasis. While proteins have been known to serve this role, recent evidence suggests non-coding RNAs may also function as scaffolds. This review focuses on HOTAIR, a non-coding RNA that interacts with enzymes that modify chromatin. The authors propose that RNA scaffolding may regulate gene expression by organizing signaling complexes. They suggest RNA scaffolding may be a novel mechanism for epigenetic regulation. The study highlights gaps in understanding RNA scaffolding roles and proposes further research.

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