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Type: Journal article
Title: Stem cells, progenitor cells, and lineage decisions in the ovary
Author: Hummitzsch, K.
Anderson, R.
Wilhelm, D.
Wu, J.
Telfer, E.
Russell, D.
Robertson, S.
Rodgers, R.
Citation: Endocrine Reviews, 2015; 36(1):65-91
Publisher: Endocrine Society
Issue Date: 2015
ISSN: 0163-769X
Statement of
Katja Hummitzsch, Richard A. Anderson, Dagmar Wilhelm, Ji Wu, Evelyn E. Telfer, Darryl L. Russell, Sarah A. Robertson and Raymond J. Rodgers
Abstract: Exploring stem cells in the mammalian ovary has unleashed a Pandora's box of new insights and questions. Recent evidence supports the existence of stem cells of a number of the different cell types within the ovary. The evidence for a stem cell model producing mural granulosa cells and cumulus cells is strong, despite a limited number of reports. The recent identification of a precursor granulosa cell, the gonadal ridge epithelial-like cell, is exciting and novel. The identification of female germline (oogonial) stem cells is still very new and is currently limited to just a few species. Their origins and physiological roles, if any, are unknown, and their potential to produce oocytes and contribute to follicle formation in vivo lacks robust evidence. The precursor of thecal cells remains elusive, and more compelling data are needed. Similarly, claims of very small embryonic-like cells are also preliminary. Surface epithelial cells originating from gonadal ridge epithelial-like cells and from the mesonephric epithelium at the hilum of the ovary have also been proposed. Another important issue is the role of the stroma in guiding the formation of the ovary, ovigerous cords, follicles, and surface epithelium. Immune cells may also play key roles in developmental patterning, given their critical roles in corpora lutea formation and regression. Thus, while the cellular biology of the ovary is extremely important for its major endocrine and fertility roles, there is much still to be discovered. This review draws together the current evidence and perspectives on this topic.
Keywords: Stem cells
Rights: Copyright © 2015 by the Endocrine Society
DOI: 10.1210/er.2014-1079
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