Lymphocyte expansion molecule

Lymphocyte expansion molecule (LEXM) is a protein discovered in 2015, found to be involved in immune responses (in mice) to some cancers and viruses. The protein was initially found to be responsible for an increased production of T cells in mice. The original paper has since been retracted upon recommendation of Imperial College's investigators due to concerns about duplication of data. The protein may be relevant to humans and could be a target for drug discovery.

Scientists at Imperial College are developing a gene therapy based on this protein.