Four cases of small lymphocyte-predominant benign PE from patients without history of lymphoma were examined and were all negative for MYD88 L265P mutation.
With clinical trials regarding their efficacy rapidly expanding to NHLs, we also discuss potential combinations of immune checkpoint inhibitors with the described targeted chemotherapies of L265P signaling networks, and/or with the above immunological approaches as potential ways of targeting MYD88-mutated lymphomas in the future.
MYD88 L265P mutation has been reported in ∼90% of Waldenström's Macroglobulinemia (WM) patients and immunoglobulin M (IgM) monoclonal gammopathies of uncertain significance (MGUS), as well as in some cases of lymphoma and chronic lymphocytic leukemia.
In order to evaluate whether the presence of the recently described MYD88 L265P mutation in patients with Waldenström's macroglobulinemia (WM) is contributory to SS-associated lymphomagenesis, a quantitative allele-specific PCR method was performed in peripheral blood derived from 90 SS patients as well as in minor salivary gland tissues derived from 12 primary SS patients with or without lymphoma.
IGHV gene features and MYD88 L265P mutation separate the three marginal zone lymphoma entities and Waldenström macroglobulinemia/lymphoplasmacytic lymphomas.