Difference Between Cd4 And Cd8 Immune Cells

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Ask the Experts

CD4 & CD8

What is the difference between CD4 and CD8? I know it's important to have a good CD4 count, but what about the CD8 count? Should the CD8 count be good also? What should the count ranges be for CD4 and CD8?
Mark Holodniy, M.D., F.A.C.P., C.I.C.

Response from Mark Holodniy, M.D., F.A.C.P., C.I.C.

Stanford University, School of Medicine
...Normal ranges in those without HIV infection are CD4 count of 500-1500 and CD8 count of 500-1500. Both cells are important in maintaining a good immune system. CD4cells are more Read more »

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AIDS InfoNet

CD4 Cell Tests

...cells that kill cancer cells and cells infected with a virus. Researchers can tell these cells apart by specific proteins on the cell surface. A T-4 cell is a T-cell with CD4 molecules on its surface. This type of T-cell is also called "CD4... Read more »
The Well Project

Understanding the Immune System

...antigens are processed and displayed on the surface of macrophages, they can be recognized by helper T cells (also known as CD4cells). When CD4cells "see" the antigens displayed, they get busy and put the word out to other immune system cells.... Read more »
AIDS InfoNet

Immune Restoration

... What Is Immune Restoration? How Can the Immune System Be Restored? Are New CD4Cells as Good as Old? What Is Immune Restoration? Immune restoration means repairing the damage done to the immune system Read more »
The Well Project

Immune Reconstitution

...FDA-approved immune-based therapies for HIV diseaseavailable. How does HIV Damage the Immune System? HIV Reduces the Number of CD4Cells HIV attacks the immune system's soldiers -- the CD4cells. When the immune system loses too many CD4... Read more »
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