CD4 - Wikipedia
网页In molecular biology, CD4 (cluster of differentiation 4) is a glycoprotein that serves as a co-receptor for the T-cell receptor (TCR). CD4 is found on the surface of immune cells such as helper T cells, monocytes, macrophages, and dendritic cells.
CD4 Count, HIV, and AIDS: Test and Results, What They Mean
网页2022年4月12日 · The CD4 count is a test that measures how many CD4 cells you have in your blood. These are a type of white blood cell, called T cells, that move throughout your body to find and destroy bacteria,...
CD4 vs. Viral Load: What’s in a Number? - Healthline
网页2021年10月5日 · CD4 counts show the robustness of the immune system. A healthy immune system normally has a CD4 count ranging from 500 to 1,600 cells per cubic millimeter of blood (cells/mm3), according to HIV...
CD4 Lymphocyte Count: MedlinePlus Medical Test
网页A CD4 count measures the number of CD4 cells in your blood. It's used to check the immune system function in people with HIV. Learn more.
CD4 T Helper Cells: Types and Functions - Verywell Health
网页2023年6月2日 · CD4 helper T cells are a type of white blood cell that coordinates the immune response. It can help fight many infections but is ironically the target of HIV infection. As HIV progressively depletes these cells, the body becomes less able to defend itself against otherwise harmless infections.
CD4 count blood test: What it is and what to expect
网页2023年7月24日 · A CD4 count measures how many CD4 cells are in a person’s blood. CD4 cells help fight infections. A CD4 count can check how well a person’s immune system is working.
CD4+T Cells: Differentiation and Functions - PMC
网页2012年3月14日 · CD4 + T cells are crucial in achieving a regulated effective immune response to pathogens. Naive CD4 + T cells are activated after interaction with antigen-MHC complex and differentiate into specific subtypes depending mainly on the cytokine milieu of the microenvironment.
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