Estrogen-receptor protein in intracranial meningiomas

1979 ◽  
Vol 50 (4) ◽  
pp. 499-502 ◽  
Author(s):  
Mark S. Donnell ◽  
Glenn A. Meyer ◽  
William L. Donegan

✓ The increased frequency of meningiomas in women compared with men, and the rapidly progressive course of these tumors in pregnant patients suggest that hormones may be involved in this disease. Tumor tissue from six patients with meningiomas was analyzed for estrogen-receptor protein. Two patients had tumors with very high concentrations of this protein, approaching that found in hormonally sensitive breast carcinoma. The biochemical and possible clinical significance of these findings is discussed.

1976 ◽  
Vol 22 (8) ◽  
pp. 1366-1371 ◽  
Author(s):  
C J Menendez-Botet ◽  
J S Nisselbaum ◽  
M Fleisher ◽  
P P Rosen ◽  
A Fracchia ◽  
...  

Abstract We determined estrogen receptor protein and carcinoembryonic antigen in cytosols prepared from 189 human breast carcinoma tissues, 85 benign or normal breast biopsies, and 101 tissue specimens metastatic from breast carcinoma. Carcinoembryonic antigen was observed in 70% of the primary carcinomatous tissues, 15% of the benign or normal specimens, and 51% of the metastases. Ninety-six of the 189 primary carcinomatous specimens with increased concentrations of carcinoembryonic antigen were also positive for estrogen receptor protein, whereas 67 of the 72 benign or normal biopsies with low concentrations of carcinoembryonic antigen were also negative for estrogen receptor protein. All five fenign specimens with positive estrogen receptor protein and normal carcinoembryonic antigen concentrations were from fibroadenomas. The concordance between estrogen receptor protein and carcinoembryonic antigen in the primary carcinomatous tissue was 66%, in metastatic carcinoma 51%, and in benign and normal tissue 85%.


1981 ◽  
Vol 142 (2) ◽  
pp. 252-254 ◽  
Author(s):  
Frank E. Johnson ◽  
Paul Peter Rosen ◽  
Celia Menendez-Botet ◽  
Morton K. Schwartz ◽  
Roy Ashikari ◽  
...  

1990 ◽  
Vol 10 (12) ◽  
pp. 6674-6682
Author(s):  
E A McKenzie ◽  
N A Cridland ◽  
J Knowland

We generate pure estrogen receptor protein in Xenopus oocytes by injecting them with estrogen receptor mRNA synthesized in vitro. A chromosomal vitellogenin gene, which normally responds to estrogen only in liver cells, is activated. Primer extension shows that initiation is accurate, and ribonuclease mapping shows that the first exon is correctly spliced out of the initial transcript. Long transcripts are produced, one being equal in length to poly(A)- vitellogenin mRNA. Immunochemical estimates of receptor levels in the oocyte nuclei suggest that pure receptor, acting alone, cannot activate oocyte vitellogenin genes unless unusually large amounts are present. However, when a receptor-free extract from liver cells is also injected, the amount of receptor required is reduced. Such an extract, but not pure receptor, can also activate albumin genes in oocytes.


Cancer ◽  
1981 ◽  
Vol 47 (10) ◽  
pp. 2364-2367 ◽  
Author(s):  
David W. Kinne ◽  
Roy Ashikari ◽  
Avital Butler ◽  
Celia Menendez-Botet ◽  
Paul Peter Rosen ◽  
...  

1982 ◽  
Vol 25 (4) ◽  
pp. 348-350 ◽  
Author(s):  
Michael V. Agrez ◽  
Robert J. Spencer

1990 ◽  
Vol 10 (12) ◽  
pp. 6674-6682 ◽  
Author(s):  
E A McKenzie ◽  
N A Cridland ◽  
J Knowland

We generate pure estrogen receptor protein in Xenopus oocytes by injecting them with estrogen receptor mRNA synthesized in vitro. A chromosomal vitellogenin gene, which normally responds to estrogen only in liver cells, is activated. Primer extension shows that initiation is accurate, and ribonuclease mapping shows that the first exon is correctly spliced out of the initial transcript. Long transcripts are produced, one being equal in length to poly(A)- vitellogenin mRNA. Immunochemical estimates of receptor levels in the oocyte nuclei suggest that pure receptor, acting alone, cannot activate oocyte vitellogenin genes unless unusually large amounts are present. However, when a receptor-free extract from liver cells is also injected, the amount of receptor required is reduced. Such an extract, but not pure receptor, can also activate albumin genes in oocytes.


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