Cell Surface Markers: An Informational Overview
Introduction
Cell surface markers are molecules—typically proteins or carbohydrates—located on the outer membrane of cells. These markers serve as biological “name tags” that help distinguish one cell type from another based on specific functions, stages of development, or activation states. They play a vital role in biology, diagnostics, immunology, and therapeutic research by enabling scientists and clinicians to identify, classify, and manipulate cells with precision.
What Cell Surface Markers Are
Every cell in the body displays a unique set of molecules on its surface. These molecules include:
Proteins