CD4

noun

1. a protein on the surface of T cells and other cells, functioning as a receptor for the AIDS virus antigen.

Word History and Origins

Origin of CD4¹

1980–85; c(luster of) d(ifferentiation) 4

Example Sentences

In many infections, CD4 T cells play a key role in defending the affected organism.

From Science Daily

CD4 count is the number of CD4 T-cells, a type of white blood cell, in the blood.

From Science Daily

A similar shift of responding clones was also observed in CD4+ T cells.

From Science Daily

HIV infects CD4 white blood cells and weaves a DNA copy of its genes—the provirus—into human chromosomes.

From Science Magazine

Th17 cells are another special type of CD4+ T helper cells and play an important role in bacterial infections and autoimmune diseases.

From Science Daily