Updates on the Biological Heterogeneity of Mantle Cell Lymphoma.

Advancements in mantle cell lymphoma (MCL) have illuminated the disease's molecular diversity, leading to a wide variation in the outcomes observed in MCL. Current prognostic risk scores are continuously revised to incorporate new updates in the mechanistic or biologic understanding of MCL. Nevertheless, key high-risk features of MCL associated with rapid disease progression and poor survival, such as mutations, complex karyotypes, and blastoid or pleomorphic morphologies, remain absent from available prognostic tools.

IL-17C regulates the innate immune function of epithelial cells in an autocrine manner.

Interleukin 17C (IL-17C) is a member of the IL-17 family that is selectively induced in epithelia by bacterial challenge and inflammatory stimuli. Here we show that IL-17C functioned in a unique autocrine manner, binding to a receptor complex consisting of the receptors IL-17RA and IL-17RE, which was preferentially expressed on tissue epithelial cells. IL-17C stimulated epithelial inflammatory responses, including the expression of proinflammatory cytokines, chemokines and antimicrobial peptides, which were similar to those induced by IL-17A and IL-17F.