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"T" cells, as in Tonsils?

T cells, key players in our immune response system, got their name from their supposedly singular origin in the Thymus. But researchers have found a second (fortuitously named) origin for T cells -- Tonsils.
Written by Audrey Quinn, Contributor

The "T" in T cells comes from their supposedly singular origin, the thymus. But scientists have found evidence that T cells also come from another T-named locale.

Ohio State researchers report in the Journal of Clinical Investigation that they've found T cells developing in tonsils.

They studied tonsils removed children after tonsillectomies and saw T cells going through similar stages of development as happens in the thymus.

T cells are white blood cells that help mediate our immune response system.

Some scientists had recently suspected that the cells could come from places other than the thymus, but the Ohio State study is the first to document their development in another part of the body.

The researchers are still unsure whether T cells that develop in the tonsils also mature there, or what proportion of T cells develop in the tonsils as opposed to the thymus.

They point out that a second region for T cell development could give doctors a second area to target when treating patients with T-cell related illnesses. Also, doctors may now be able to stimulate T cell growth in the tonsils when the thymus fails.

Photo: Mollypop/Flickr

This post was originally published on Smartplanet.com

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