An immunocytochemistry study was performed to compare the immunoreactivity of the monoclonal antibodies OC 125, EGFR and OV 632 with smear imprints from 60 ovarian tumours (21 serous cystadenocarcinomas, 12 mucinous cystadenocarcinomas, 9 endometrioid carcinomas, 5 clear cell carcinomas and 5 mixed tumours). Twenty-six patients were premenopausal and 34 postmenopausal. The results showed that 75% of mucinous cystadenocarcinomas were negative for all 3 antigens as were 2 of the 5 (40%) clear cell carcinomas. All other tumours were positive for at least one of the three antigens. OV 632 had an overall sensitivity of 73.3%, EGFR 55% and OC 125 46.6%. Four tumours were OC 125-positive and OV 632-negative. There was no significant difference in positivity of OV 632, OC 125 and EGFR, between pre- and post-menopausal patients (chi 2 = 0.03) or between tumours of stage I and stage III [chi 2 = 0.075 (EGFR) 0.95 (OV 632) and 10.49 (OC 125)]. OV 632 was conducted to be the most sensitive antibody in all types of tumours but OC 125, while less sensitive by itself, increased the overall sensitivity in combination with OV 632 from 73.3 to 80% (not statistically significant).

Download full-text PDF

Source
http://dx.doi.org/10.1159/000227446DOI Listing

Publication Analysis

Top Keywords

egfr 632
8
632 125
8
125 egfr
8
mucinous cystadenocarcinomas
8
clear cell
8
cell carcinomas
8
0
7
tumours
6
egfr
5
1
5

Similar Publications

EGFR and ALK are key driver mutations in non-small cell lung cancer (NSCLC). Tyrosine kinase inhibitors are recommended as the first-line treatment for advanced NSCLC with driving oncogenes because they have fewer side effects and provide better disease control than chemotherapy. The present retrospective analysis aimed to investigate how altered driver genes impact cancer outcomes and clinical presentation.

View Article and Find Full Text PDF

Rapamycin, a macrocyclic antibiotic derived from the actinomycetes Streptomyces hygroscopicus, is a widely used immunosuppressant and anticancer drug. Even though rapamycin is regarded as a multipotent drug acting against a broad array of anomalies and diseases, the mechanism of action of rapamycin and associated pathways have not been studied and reported clearly. Also reports on the binding of rapamycin to cancer cell receptors are limited to the serine/threonine protein kinase mTORC1.

View Article and Find Full Text PDF

The Sprouty (SPRY) proteins are evolutionary conserved modulators of receptor tyrosine kinase (RTK) signaling. SPRY2 inhibits fibroblast growth factor (FGF) signaling, whereas it enhances epidermal growth factor (EGF) signaling through inhibition of EGF receptor (EGFR) endocytosis, ubiquitination, and degradation. In this study, we analyzed the effects of SPRY2 on endocytosis and degradation of FGF receptor 1 (FGFR1) using two human glioblastoma (GBM) cell lines with different endogenous SPRY2 levels.

View Article and Find Full Text PDF

Purpose: To investigate the safety and efficacy of radical radiotherapy for localized inoperable renal pelvic and ureteral carcinoma.

Methods: 23 patients who received radiotherapy were enrolled. The prescribed dose was 60 to 67.

View Article and Find Full Text PDF

Aims: This study aimed to identify the longitudinal associations between protein intake, and composite renal outcomes in people with type 2 diabetes.

Methods: To examine the association between baseline total, animal, and plant protein intake and the risk of developing a composite renal outcome in 3,109 Japanese people with type 2 diabetes who participated in a cohort study at a tertiary care hospital, we used a Cox proportional hazards model.

Results: During a median follow-up of 6.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!