infection of transgenic C57BL6 mice expressing the human form of the APRIL cytokine (Tg-hAPRIL), Blosse et al. [31] characterized the gastric mucosal inflammatory response associated with gastric MALT lymphoma and highlighted that all T cell subtypes infiltrate gastric MALT lymphoma, including regulatory T cells, both in the animal model and in human gastric MALT lymphoma patients. The gene discussed is TNFSF13; the disease is MALT lymphoma.