Epitheliale Wachstumsfaktor-Rezeptoren (EGF-R) und DNA-Flowzytometrie neben Lymphknoten- und Hormonrezeptorstatus als Prognosefaktoren beim primären Mammakarzinom
- 1 April 1989
- journal article
- research article
- Published by Georg Thieme Verlag KG in Geburtshilfe und Frauenheilkunde
- Vol. 49 (04) , 375-378
- https://doi.org/10.1055/s-2008-1026603
Abstract
Die Rezeptoren für den epithelialen Wachstumsfaktor (epidermal growth factor receptor, EGF-R) und flowzytometrische Parameter (S-Phase und Ploidie) sind neue Prognosefaktoren beim Mammakarzinom. Um den Zusammenhang zwischen diesen neuen Prognosefaktoren und ihre Beziehung zu etablierten Prognoseparametern zu untersuchen, wurden Biopsien von 68 konsekutiven Patientinnen mit primärem Mammakarzinom untersucht. 11 Patientinnen hatten positive EGF-R (Werte größer als 10 fmol/mg Membran Protein) und 37 Patientinnen hatten S-Phasen über 5%. Positive EGF-R waren häufiger in duktal-invasiven (10 von 44) als in lobulär-invasiven Karzinomen (1 von 18) nachweisbar. Die EGF-R korrelierten umgekehrt mit dem Alter der Patientinnen (p < 0,0001) und mit der Östrogen-Rezeptor-Kapazität (p < 0.00001). Vor allem jüngere Patientinnen und solche mit Hormon-Rezeptor-negativen Tumoren wiesen häufig erhöhte EGF-R auf. Ein Zusammenhang zwischen EGF-R, S- Phase und Lymphknoten-Status oder Tumorgröße konnte nicht nachgewiesen werden. Die EGF-R korrelierten nicht mit der S-Phase. Dies deutet daraufhin, daß es sich hier um zwei unabhängige Prognoseparameter handelt. The presence of receptors for epidermal growth factor (EGF-R), the percentage of cells in S-phase and DNA-ploidy measured by flow-cytometry are new prognostic factors in breast cancer. In order to investigate the relationship between EGF-R, S-Phase/DNA-ploidy and clinical data, we measured these parameters in 68 tumors from patients with operable breast cancer. 11 Patients had positive EGF- R's (specific binding greater than 10 fmol/mg membraneprotein) and 37 patients had a positive S-Phase (more than 5 % of cells in S-Phase). 10 of 44 carcinomas of ductal type were EGF-R positive, while only 1 of 18 lobular-type tumor displayed positive EGF-R's. We found significant inverse correlations between EGF-R's and estrogen receptors (p < 0.00001) and between EGF-R's and age (p < 0.0001): EGF-R positive tumors were found more often in young patients and in patients with estrogen-receptor-negative tumors. The EGF-R's and flow-cytometric data did not correlate with tumor size and/or nodal status. There was no correlation between EGF-R and S-Phase/DNA-ploidy in the breast cancer specimens suggesting that these two prognostic parameters are independent from each other.This publication has 14 references indexed in Scilit:
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