GAPDH Overexpression in the T Cell Lineage Promotes Angioimmunoblastic T Cell Lymphoma through an NF-κB-Dependent Mechanism

Publication date: Available online 22 August 2019Source: Cancer CellAuthor(s): Laura Mondragón, Rana Mhaidly, Gian Marco De Donatis, Marie Tosolini, Pascal Dao, Anthony R. Martin, Caroline Pons, Johanna Chiche, Marie Jacquin, Véronique Imbert, Emma Proïcs, Laurent Boyer, Anne Doye, Frédéric Luciano, Jaap G. Neels, Frédéric Coutant, Nicole Fabien, Laura Sormani, Camila Rubio-Patiño, Jozef P. BossowskiSummaryGAPDH is emerging as a key player in T cell development and function. To investigate the role of GAPDH in T cells, we generated a transgenic mouse model overexpressing GAPDH in the T cell lineage. Aged mice developed a peripheral Tfh-like lymphoma that recapitulated key molecular, pathological, and immunophenotypic features of human angioimmunoblastic T cell lymphoma (AITL). GAPDH induced non-canonical NF-κB pathway activation in mouse T cells, which was strongly activated in human AITL. We developed a NIK inhibitor to reveal that targeting the NF-κB pathway prolonged AITL-bearing mouse survival alone and in combination with anti-PD-1. These findings suggest the therapeutic potential of targeting NF-κB signaling in AITL and provide a model for future AITL therapeutic investigations.Graphical Abstract
Source: Cancer Cell - Category: Cancer & Oncology Source Type: research