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https://hdl.handle.net/2440/34768
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Type: | Journal article |
Title: | Identification and enrichment of colony-forming cells from the adult murine pituitary |
Author: | Lepore, D. Roeszler, K. Wagner, J. Ross, S. Bauer, K. Thomas, P. |
Citation: | Experimental Cell Research, 2005; 308(1):166-176 |
Publisher: | Academic Press Inc Elsevier Science |
Issue Date: | 2005 |
ISSN: | 0014-4827 1090-2422 |
Statement of Responsibility: | D.A. Lepore, K. Roeszler, J. Wagner, S.A. Ross, K. Bauer and P.Q. Thomas |
Abstract: | Stem and progenitor cells have been identified in many adult tissues including bone marrow, the central nervous system, and skin. While there is direct evidence to indicate the activity of a progenitor cell population in the pituitary gland, this putative subpopulation has not yet been identified. Herein we describe the isolation and characterization of a novel clonogenic cell type in the adult murine pituitary, which we have termed Pituitary Colony-Forming Cells (PCFCs). PCFCs constitute 0.2% of pituitary cells, and generate heterogeneous colonies from single cells. PCFCs exhibit variable proliferative potential, and may exceed 11 population doublings in 14 days. Enrichment of PCFCs to 61.5-fold with 100% recovery can be obtained through the active uptake of the fluorescent dipeptide, β-Ala-Lys-Nε-AMCA. PCFCs are mostly contained within the large, agranular subpopulation of AMCA⁺ cells, and constitute 28% of this fraction, corresponding to 140.5-fold enrichment. Interestingly, the AMCA⁺ population contains rare cells that are GH⁺ or PRL⁺. GH⁺ cells were also identified in PCFC single cell colonies, suggesting that PCFCs have the potential to differentiate into GH⁺ cells. Together, these data show that the pituitary contains a rare clonogenic population which may correspond to the somatotrope/lactotrope progenitors suggested by previous experiments. |
Keywords: | Pituitary Growth hormone Progenitor cells Colony-forming cells |
DOI: | 10.1016/j.yexcr.2005.04.023 |
Published version: | http://dx.doi.org/10.1016/j.yexcr.2005.04.023 |
Appears in Collections: | Aurora harvest 6 Molecular and Biomedical Science publications |
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