생화학분자생물학회

	Name: Fabrice Lejeune ( fabrice.lejeune@inserm.fr )
	Present	Team Leader, (Molecular therapeutical approaches for genetic diseases and cancers – U1277 Inserm/UMR9020 CNRS) at Oncolille
	2012.12-2022.08	Researcher, Dr. David Tulasne group (UMR 9020 CNRS - UMR 1277 Inserm: CANcer Heterogeneity, Plasticity and Resistance to THERapies) at Institut de Biologie de Lille: correction of nonsense mutations in genetic diseases
	2008.01-2012.12	Leader, AVENIR team (INSERM) at Pasteur Institute of Lille (France): correction of nonsense mutations in genetic diseases

Nonsense-mediated mRNA decay, a simplified view for a complex mechanism

The nonsense-mediated mRNA decay (NMD) mechanism is both a quality control mechanism and a gene regulation pathway. NMD has been studied for more than 30 years with an accumulation of many mechanistic details which have often led to debate leading to the proposal of several models of NMD activation, in particular in higher eukaryotes. Two models in particular seem to be opposed since the first requires the intervention of the protein complex EJC (exon junction complex) to recruit NMD factors downstream of the premature termination codon (PTC), when the second model is independent of the 'EJC and indicates that NMD factors concentrate in the 3'UTR part to initiate the NMD reaction in the presence of a PTC. We describe in this review both models giving recent molecular details and providing experimental arguments supporting one or the other model. In the end it is certainly possible to imagine that these two models co-exist rather than thinking that they are exclusive.


BMB Rep. 2023 Dec 6:6081. Online ahead of print.
https://pubmed.ncbi.nlm.nih.gov/38052423/