MSLN and neoplasm: Anti-mesothelin immunotherapies for mesothelin-expressing tumor include use of recombinant immunotoxin (SS1P), a high-affinity chimeric monoclonal antibody (MORAb-009), an anti-mesothelin antibody drug conjugate (BAY 94-9343), and adoptive T-cell immunotherapy using mesothelin-specific chimeric antigen receptors (CAR) [17].