accessory cell


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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.
References in periodicals archive ?
We used a T-lymphocyte proliferation assay to estimate the macrophage function as accessory cells.
This includes studies of the cells contained in TRCs, to better understand how accessory cells support the growth of stem and progenitor cells so they are optimized when the surgeon is ready to use them for bone or vessel regeneration.
Nonlymphoid and nonphagocytic follicular dendritic cells are among the accessory cells of the lymphoid system.