T-cell membrane

The T-cell membrane is the specialized plasma membrane of T-lymphocytes, acting as a dynamic platform for immune signaling and environmental sensing [1]. It consists of a lipid bilayer interspersed with a complex repertoire of transmembrane proteins, including the T-cell receptor (TCR) complex, co-receptors (CD4/CD8), and various checkpoint molecules like PD-1 and CTLA-4 [2]. The primary biological function of the T-cell membrane is to facilitate the recognition of MHC-presented antigens and translate these extracellular signals into intracellular cascades that govern T-cell activation, proliferation, and effector functions [3]. In disease contexts, the expression and organization of membrane proteins are often dysregulated, contributing to immune evasion in cancer or hyper-reactivity in autoimmune diseases [4]. While the membrane itself is a cellular component rather than a single molecular target, it serves as the site of action for numerous blockbuster drugs, including monoclonal antibodies and CAR-T cell therapies [5].

Other names

T-lymphocyte plasma membraneT-cell surfaceT-cell plasma membrane

Modulation of T-cell signaling through interaction with specific membrane-bound proteins such as CD3, PD-1, or CTLA-4.