Amplification, rearrangement, or overexpression of the gene for the epidermal growth factor receptor (EGFR) occurs in certain types of human neoplasia. We investigated EGFR gene structure and measured EGFR mRNA levels in human renal tumor biopsies. Seventeen renal tumors [13 renal cell carcinomas (RCCs), two Wilms' tumors, one oncocytoma, and one metastatic ganglioneuroblastoma] and their corre...

OBJECTIVES Cyclooxygenase-2 (Cox-2) is known to be associated with tumorigenesis in many cancers including endometrial cancer, while there is substantial evidence for the tumorigenicity of cyclooxygenase-1 (Cox-1). However, little is known about the involvement of Cox-1 in the development of endometrial cancer. The aim of this study was to determine whether cyclooxygenase-1 or -2 (Cox-1, Cox-2)...

To clarify association of epidermal growth factor receptor, human receptor 2 with prognosis colorectal cancer under FOLFOX chemotherapy. A total 108 patients chemotherapy in the hospital from October 2017 to 2019 were chosen as research subjects. The baseline data recorded before treatment and levels serum tumor markers carcino embryonic antigen carbohydrate 125 measured recorded. After 6 cours...

Trastuzumab is a specific monoclonal antibody used for therapeutic of the human epidermal growth factor receptor 2 (HER-2) -positive metastatic breast cancer. But, resistance to trastuzumab is a major obstacle in clinical efficiency.  During the past years, several studies have been done to find the mechanisms contributing to trastuzumab resistance. Previous studies have highlighted that bone m...

Background &Objectives Evaluation of estrogen receptor (ER), progesterone receptor (PR), and (human epidermal growth factor receptor-2) Her-2 on core needle biopsies (CNBs) is increasingly in use to diagnosis early breast cancer, but its concordance with surgical excision (SE) is not well documented. Methods The study included 100 formalin fixed, paraffin-embedded specimens of invasive breast...

Amplification and overexpression of the HER-2 (neu/ erbB-2) gene in human breast cancer are clearly important events that lead to the transformation of mammary epithelial cells in approximately one-third of breast cancer patients. Heterodimer interactions between HER-2 and HER-3 (erbB-3) are activated by neu differentiation factor/heregulin (HRG), and HER-2/HER-3 heterodimers are constitutively...

INTRODUCTION: Breast cancer diagnosed within 10 years of parturition is named postpartum breast which a highly metastatic tumor with poor prognosis. CASE REPORT: A 31-year-old female presented fever and painful mass in the left breast. She had undergone C-section 6 months ago her second child. biopsy was performed showed estrogen receptor-negative, progesterone human epidermal growth factor rec...

THIS STUDY WAS AIMED AT: (i) investigating the expression profiles of some antioxidant and epidermal growth factor receptor genes in cancerous and unaffected tissues of patients undergoing lung resection for non-small cell lung cancer (NSCLC) (cross-sectional phase), (ii) evaluating if gene expression levels at the time of surgery may be associated to patients' survival (prospective phase). Ant...

In this issue of Journal of Clinical Oncology, Baehner et al have reported from a Kaiser Permanente case-control study that there is a high degree of concordance (97%) between quantitative reverse transcription polymerase chain reaction (qRT-PCR) and central laboratory fluorescent in situ hybridization (FISH) assessment of HER2 status. This provides us the opportunity to examine the status of h...