nurse cell


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nurse cell

[′nərs ‚sel]
(histology)
A cell type of the ovary of many animals which nourishes the developing egg cell.
References in periodicals archive ?
The stem cell hooks onto the nurse cell tightly, in a process Zon likens to early "attachment" of an infant to its mother.
At this initial phase the average nurse cell area, measured in the sections is 1.
In polytrophic meroistic ovaries, such as the ovary of bees, each ovarian follicle is constituted by one or several nurse cells that accompany the oocytes in the vitellarium.
Nevertheless, the fact that yeasts appear to degenerate rapidly when released from the sponge's physiological environment by either accidental oocyte breakage or nurse cell apoptosis suggests that they are unlikely to survive outside the sponges.
In a later stage, the nurse cells cease their engulfing activity, become spherical, and enucleate themselves before transferring their content to the oocyte (Fig.
Oogenesis in Hydra carnea: a new model based on light and electron microscopic analysis of oocyte and nurse cell differentiation.
To aid in distinguishing embryonic cells (or the nuclei released when cells were sheared) from the nurse cells that are present in eggs and embryos at all stages through to hatching, macerated cells were stained with a 2.
13VEGF a cytokine on the surface of vascular endothelial cells macrophages and nurse cells is involved in vascular formation and reconstruction; VEGF combines with a specific receptor to increase vasopermeability.
In addition, we are investigating ways to attach homing receptors to these nurse cells in order to help direct NK cells to where they need to go, whether it's the lymph nodes, brain tissue, bone marrow or other areas.
Woodruff said that the discovery would enable researchers to understand how nurse cells (granulosa cells), the cells that support and surround the maturing egg, communicate with the egg.
In the egg chambers of fruit flies, that RNA also moves from nourishing cells called nurse cells to the maturing egg, traveling through cytoplasmic pathways called ring canals, says Columbia's Tulle Hazelrigg.
First, she found that Sertoli cells, the nurse cells for developing sperm in the testis, also are responsible for the immunoprivileged characteristic of the testis.