Membrane proteins in neoplasic and normal uterine cervix.

Abstract:

:Tumor cells exhibit phenotypic and genotypic differences in comparison to normal cells. These differences can be used to identify proteins important for tumor growth and, therefore, potentially used in the diagnosis and follow-up of patients. The objective of this work was to investigate the electrophoretic pattern of cytoplasm membrane proteins from normal and malignant cervix using polyacrylamide-SDS gels. A highly reproducible protein pattern was found in the 29 samples of normal cervix whereas three well-defined patterns of protein bands were observed in the 48 tumor specimens (pattern I: 25%, pattern II: 29.2% and pattern III: 45.8%). A low concentration or absence of high molecular weight proteins was observed (p<0.5) in tumor samples. None of the tumor protein patterns correlated with the clinicopathologic characteristics of patients. Nine out of 11 patients (82%) showing the pattern III had a complete clinical response whereas only 55% (11 out of 20) of those with patterns I and II showed a complete response. However, this difference was non-significant (p=0.1247). In conclusion, we demonstrate that there is a gain and loss of cytoplasmic membrane proteins in tumors, shown as different protein band patterns. These findings could have clinical and biological significance that must be further evaluated.

journal_name

J Exp Clin Cancer Res

authors

Trejo-Becerril C,Pérez-Cárdenas E,Taja-Chayeb L,Zeichner-Gancz I,Delgado-Chávez R,Solorza-Luna G,Dueñas-González A

keywords:

subject

Has Abstract

pub_date

2001-06-01 00:00:00

pages

231-7

issue

2

eissn

0392-9078

issn

1756-9966

journal_volume

20

pub_type

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