RAG2 and neoplasm: It has been shown that immature myeloid cells can affect tumor growth also in the absence of T cells (19) and although the in vivo experiments in RAG2 deficient mice clearly pointed to a T cell independent mechanism for myeloid cell mediated tumor growth reduction, we still resorted to the in vitro T cell suppression assay, as an established method to analyze changes in immunoregulatory phenotype after salt exposition.