Mouse Models of c-myc Deregulation Driven by IgH Locus Enhancers as Models of B-Cell Lymphomagenesis.

Melissa Ferrad, Nour Ghazzaui, Hussein Issaoui, Jeanne Cook-Moreau, Yves Denizot

Frontiers in immunology 2020

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Chromosomal translocations linking various oncogenes to transcriptional enhancers of the immunoglobulin heavy chain (IgH) locus are often implicated as the cause of B-cell malignancies. Two major IgH transcriptional enhancers have been reported so far. The Eμ enhancer located upstream of the Cμ gene controls early events in B-cell maturation such as VDJ recombination. The 3' regulatory region (3'RR) located downstream from the Cα gene controls late events in B-cell maturation such as IgH transcription, somatic hypermutation, and class switch recombination. Convincing demonstrations of the essential contributions of both Eμ and 3'RR in B-cell lymphomagenesis have been provided by transgenic and knock-in animal models which bring the oncogene c-myc under Eμ/3'RR transcriptional control. This short review summarizes the different mouse models so far available and their interests/limitations for progress in our understanding of human c-myc-induced B-cell lymphomagenesis. Copyright © 2020 Ferrad, Ghazzaui, Issaoui, Cook-Moreau and Denizot.

Citation

Melissa Ferrad, Nour Ghazzaui, Hussein Issaoui, Jeanne Cook-Moreau, Yves Denizot. Mouse Models of c-myc Deregulation Driven by IgH Locus Enhancers as Models of B-Cell Lymphomagenesis. Frontiers in immunology. 2020;11:1564