Tumor cell surface ligands

Tumor cell surface ligands" is a collective, non-specific designation that encompasses numerous distinct ligands presented on the surface of tumor cells, including proteins, carbohydrates, and lipids. These ligands interact with a variety of cellular receptors (such as immune cell receptors or stromal cell receptors) and play pivotal roles in signal transduction within the tumor microenvironment, immune modulation, cellular adhesion, migration, angiogenesis, and metastasis[7][4][8]. Examples include cell adhesion molecules (e.g., CD44, integrins), chemokines and their ligands (e.g., CCL2, CCL5), growth factor ligands (e.g., EGF), and other functional moieties involved in tumor progression[2][3][6][4]. Because this term refers to a broad group rather than a unique molecule, it is not suitable as a singular therapeutic target, and information such as aliases, interacting drugs, and mechanism of action cannot be assigned without clarification to a specific molecular entity.