Highly active CAR T cells that bind to a juxtamembrane region of mesothelin and are not blocked by shed mesothelin.

Liu, Xiufen; Onda, Masanori; Watson, Nathan; Hassan, Raffit; Ho, Mitchell; Bera, Tapan K; Wei, Junxia; Chakraborty, Anirban et al. · Proc Natl Acad Sci U S A · 2022

basic_science · Level V

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Abstract

SignificanceMesothelin (MSLN) is a cell-surface protein that is a popular target for antibody-based therapies. We have identified shed MSLN as a major obstacle to successful antibody therapies and prepared a monoclonal antibody that inhibits shedding and makes very active CAR T cells whose activity is not blocked by shed MSLN and merits further preclinical development.

Medical subject headings