Detection of a population of long-lived cells in mammary epithelium of the mouse

ISSN:
1432-0878
Keywords:
Key words: Mammary epithelium ; Menstrual cycle ; Stem cells ; Tritiated thymidine ; Epithelial cell differentiation ; Breast cancer ; Mouse (BALB/c)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Medicine
Notes:
Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
Type of Medium:
Electronic Resource
URL:
_version_ 1798297630576476161
autor Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
autorsonst Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
book_url http://dx.doi.org/10.1007/s004410050722
datenlieferant nat_lic_papers
hauptsatz hsatz_simple
identnr NLM205797741
issn 1432-0878
journal_name Cell & tissue research
materialart 1
notes Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
package_name Springer
publikationsjahr_anzeige 1996
publikationsjahr_facette 1996
publikationsjahr_intervall 8004:1995-1999
publikationsjahr_sort 1996
publisher Springer
reference 286 (1996), S. 525-536
schlagwort Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
search_space articles
shingle_author_1 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
shingle_author_2 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
shingle_author_3 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
shingle_author_4 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
shingle_catch_all_1 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
Detection of a population of long-lived cells in mammary epithelium of the mouse
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
1432-0878
14320878
Springer
shingle_catch_all_2 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
Detection of a population of long-lived cells in mammary epithelium of the mouse
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
1432-0878
14320878
Springer
shingle_catch_all_3 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
Detection of a population of long-lived cells in mammary epithelium of the mouse
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
1432-0878
14320878
Springer
shingle_catch_all_4 Zeps, N.
Dawkins, H. J. S.
Papadimitriou, J. M.
Redmond, S. L.
Walters, M.-N. I.
Detection of a population of long-lived cells in mammary epithelium of the mouse
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Key words: Mammary epithelium
Menstrual cycle
Stem cells
Tritiated thymidine
Epithelial cell differentiation
Breast cancer
Mouse (BALB/c)
Abstract. The fate of dividing mouse mammary epithelial cells was followed by use of tritiated thymidine (3H-Tdr) autoradiography. Loss of label consistent with halving kinetics was observed at various times after injection; however, heavily labelled cells were frequently observed at two weeks and later, when none was expected. The grain count over these heavily labelled cells was often comparable with that 1 h after 3H-Tdr injection. Extensive serial sectioning revealed that the heavily labelled cells were often single cells surrounded by many unlabelled cells or that their label was in stark contrast (in excess of 20 reduced silver grains) to the surrounding group of cells whose label was just above background (a maximum of 3 grains). In addition, by injecting mice at different stages of oestrus, we demonstrated that these long-lived cells, although influenced by oestrus, replicated independently of the oestrogen peak. Our data support a model for mouse mammary epithelium that has a single ’stem’ cell positioned within a group of its progeny to form a discrete proliferative unit. This model requires many such stem cells within the mammary epithelium and is consistent with similar models proposed for other tissues.
1432-0878
14320878
Springer
shingle_title_1 Detection of a population of long-lived cells in mammary epithelium of the mouse
shingle_title_2 Detection of a population of long-lived cells in mammary epithelium of the mouse
shingle_title_3 Detection of a population of long-lived cells in mammary epithelium of the mouse
shingle_title_4 Detection of a population of long-lived cells in mammary epithelium of the mouse
sigel_instance_filter dkfz
geomar
wilbert
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source_archive Springer Online Journal Archives 1860-2000
timestamp 2024-05-06T10:11:03.116Z
titel Detection of a population of long-lived cells in mammary epithelium of the mouse
titel_suche Detection of a population of long-lived cells in mammary epithelium of the mouse
topic W
WW-YZ
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