Lck-interacting transmembrane adaptor 1 (LIME1)

Lck-interacting transmembrane adaptor 1 (LIME1) is a scaffold protein predominantly expressed in T lymphocytes and other hematopoietic cells that localizes to membrane rafts and plays a key role in immune signaling pathways[1][2]. LIME1 is rapidly phosphorylated upon T or B cell receptor stimulation, serving as a docking platform for Src-family kinases such as Lck and Lyn, and thereby transduces receptor signals to downstream effectors[1][2]. In T cells, LIME1 is critical for the formation of the immunological synapse and for the propagation of TCR-mediated signaling, including activation of pathways such as ERK and JNK and induction of IL-2 gene expression[2]. Recent studies demonstrate that LIME1 is preferentially expressed in effector T cells and is essential for inflammatory chemokine-mediated migration, contributing to immune cell infiltration during inflammation[3]. Aberrant expression or mutation of LIME1 has been found in some cancers, including prostate cancer, where it may serve as a biomarker and potential therapeutic target[1]. Genetic variation at the LIME1 locus can affect immune cell function and may influence the risk or outcome in immune-mediated diseases[1]. No clinical drugs are known to directly target LIME1, and specific mechanisms of drug action or safety concerns have not been described in the available literature.

Other names

LIMELck-interacting membrane proteinFLJ20406dJ583P15.4LP8067Lck-interacting molecule