April #80 : A Tell-All About T Cells

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Table of Contents

Tweedledum and Dumber

Hip to the Future

High Society

Pride & Prejudice

Weekend Warrior

Bad Bio-Rad

Don't Fence Me In

War Cries

Heavy Petting

Pass the Lube

Obit: Lance Loud

Living Spoof

Babes in Tube-Land

Altered States

A Tell-All About T Cells

Quick Draw

Get SMART

KS Dating

Cancer Count

Media

Let's Roll...Back!

Scumbag Humbug

Editor's Letter

Mailbox

Larry's Lease on Life



Most Popular Lessons

The HIV Life Cycle

Shingles

Herpes Simplex Virus

Syphilis & Neurosyphilis

Treatments for Opportunistic Infections (OIs)

What is AIDS & HIV?

Hepatitis & HIV


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April 2002

A Tell-All About T Cells

T cell: a white blood cell called a lymphocyte produced by the thymus; central to the firs

T cell: a white blood cell called a lymphocyte produced by the thymus; central to the first line of immune defense called cellular immunity; includes two groups of cells: CD4s and CD8s.

CD4, or helper, cell: a T cell that stimulates other immune cells called macrophages to kill infected cells; also sends signals to B cells to produce antibodies to specific microbes (see photo above [image not available]).

CD8, or killer, cell: a T cell that directly kills infected cells by releasing chemicals that destroys them.

Memory cell: a T cell that was once activated with antibodies to fight a specific infection and now carries proteins on its surface to recognize the invader if it appears again.

B cell: a white blood cell called a lymphocyte that is produced in the bone marrow; each B cell makes antibodies that attack specific microbes.




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