Tumor Cell Membrane Microdomain

Tumor cell membrane microdomains, often referred to as lipid rafts, are specialized, dynamic regions within the plasma membrane of tumor cells. These microdomains are enriched in cholesterol, sphingolipids, and specific proteins. They serve as organizing centers for the assembly of signaling molecules and play critical roles in regulating cellular processes such as signal transduction, cell adhesion, migration, apoptosis resistance, and drug response. Tumor cells often remodel their plasma membranes—including these microdomains—to support increased proliferation rates while resisting apoptosis. This remodeling also aids escape from immune surveillance and enhances metastatic potential by facilitating detachment from primary sites and invasion into new tissues. The unique lipid/protein composition distinguishes tumor cell microdomains from those found in normal cells. They represent promising targets for anticancer therapies aimed at disrupting critical signaling pathways or restoring sensitivity to chemotherapeutics.

Other names

Lipid raftsMembrane rafts

Disrupting lipid raft integrity or targeting raft-associated proteins/receptors