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CD4 is a surface receptor expressed by helper T lymphocytes, known as CD4+ T cells. Its purpose is to stablize the interaction between the T cell receptor (on the T cell) and an antigen-bearing MHC Class II molecule (on an antigen presenting cell).

Under the right circumstances, this interaction activates CD4+ T cells that recognize an invading pathogen. Activated CD4+ T cells do many things, and are required for a robust adaptive immune response.

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โˆ™ 2008-04-21 05:43:23
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Q: What is the function of CD4?
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Related questions

What type of cells does HIV attack and destroy?

HIV attacks cells associated with immune function, specifically CD4 T cells and macrophages.


What would be your CD4 count if you have aids?

A CD4 count under 200 is a defining AIDS condition.


What a low cd4 cell count?

Presumably, a lower-than-normal number of CD4+ T lymphocytes in your blood. CD4+ T cells are required for a healthy immune system.


Is a CD4 molecule also a type of antigen?

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Why only cd4 ceels are damaged in hiv n cd8 remain safe?

coz CD8 and CD4 are two diffrent types of proteins .. n HIV requires cd4 to fuse for replicatin


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500 cells/mm3 to 1,000 cells/mm3 CD4 T cells


How do you calculate and absolute cell count?

The CD4 count is the result of the most important test used to monitor HIV. The 'absolute' count is the same as the CD4 count. This is the result you get back from your doctor. The term 'absolute' is used to differentiate it from CD4 percentage (CD4%) which can also be used for clinical management.


Which cells are CD4 plus?

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What is the role of cd4 receptors in HIV?

The role of the CD4 receptors in HIV is so that the virus fuses with the T helper cells.


What causes low CD4 count?

Your CD4 count is a marker of the strength of your immune system. Many immune related diseases can cause your CD4 count to drop, as can medications that are designed to suppress your immune system. With HIV, the CD4 count falls because it is unable to keep up with the pressure from the virus replicating.


What causes low CD4 counts?

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CD4 full words of this abriviation CD4?

The CD stands for 'cluster of differentiation' and is way to categorise some of the cells that are part of your immune system. CD4 is T-cell and is the most important immune marker for monitoring HIV.

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