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accessory cell |
Also found in: Dictionary/thesaurus, Medical, Legal, Wikipedia, Hutchinson | 0.03 sec. |
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accessory cell [ak′ses·ə·rē ‚sel] (botany) A morphologically distinct epidermal cell adjacent to, and apparently functionally associated with, guard cells on the leaves of many plants. (immunology) Any nonlymphocytic cell that helps in the induction of the immune response by presenting antigen to a helper T lymphocyte. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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More specifically, because of the macrophage's
phagocytosis activity and ubiquitous presence throughout the body, it is
also important to assess the effect DU may have on macrophage function
as accessory cells to T-lymphocyte activation/proliferation. Nonlymphoid and nonphagocytic follicular dendritic cells are among
the accessory cells of the lymphoid system.
"One of the receptors for PDGF, PDGFR[eth], is expressed on a
number of human cancers and on accessory cells in tumors that are
important for sustaining tumor growth. |
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