Title:Role of lncRNAs and circRNAs in Orofacial Clefts
Volume: 12
Issue: 3
Author(s): Ratnam S. Seelan*, Robert M. Greene and M. Michele Pisano
Affiliation:
- Department of Oral Immunology and Infectious Diseases, Division of Craniofacial Development and Anomalies, University of Louisville School of Dentistry, Louisville, KY 40202, USA
Keywords:
ceRNA, circRNA, cleft palate, lncRNA, miRNA.
Abstract: Different modes of gene regulation, such as histone modification, transcription factor
binding, DNA methylation, and microRNA (miRNA) expression, are critical for the spatiotemporal
expression of genes in developing orofacial tissues. Aberrant regulation in any of these modes may
contribute to orofacial defects. Noncoding RNAs (ncRNAs), such as long ncRNAs (lncRNAs) and
circular RNAs (circRNAs), have been shown to alter miRNA expression, and are thus emerging as
novel contributors to gene regulation. Some of these appear to function as ‘miRNA sponges’, thereby
diminishing the availability of these miRNAs to inhibit the expression of target genes. Such
ncRNAs are also termed competitive endogenous RNAs (ceRNAs). Here, we examine emerging
data that shed light on how lncRNAs and circRNAs may alter miRNA regulation, thus affecting
orofacial development and potentially contributing to orofacial clefting.