Logo Medical Science Monitor

Call: +1.631.470.9640
Mon - Fri 10:00 am - 02:00 pm EST

Contact Us

Logo Medical Science Monitor Logo Medical Science Monitor Logo Medical Science Monitor

01 December 2006

A comparative assessment of HER2 status in operable breast cancer by real-time RT-PCR and by immunohistochemistry

Piotr Potemski, Elżbieta Płuciennik, Andrzej K. Bednarek, Renata Kusińska, Grażyna Pasz-Walcza, Dorota Jesionek-Kupnicka, Cezary Watała, Radzisław Kordek

Med Sci Monit 2006; 12(12): MT57-61 :: ID: 469712

Abstract

Background: The most commonly used methods for detecting HER2 gene amplifi cation in breast cancer are immunohistochemistry and fl uorescence in-situ hybridization. The aim of this retrospective study was to assess HER2 expression by real-time RT-PCR.
Material/Methods: Expression of HER2 was analyzed by real-time RT-PCR and immunohistochemistry in specimens of invasive ductal breast cancer tissue obtained from 131 women during radical mastectomy.
Results: There was a highly signifi cant difference in mean relative gene expression between HER2-positive and HER2-negative patients as assessed by immunostaining (22.10±41.89 vs. 3.17±8.76; p<0.001). With a median follow-up of 56 months, the cancer-specific survival of HER2-positive patients assessed by RT-PCR was worse in all cases and in the node-positive group. In multivariate analysis, HER2 status was an independent prognostic factor in all patients.
Conclusions: Real-time RT-PCR is a valuable method for determining HER2 status, but the selection of the cut-off point of the relative gene expression differentiating between HER2-negative and -positive tumors is essential.

Keywords: Survival Rate, Reverse Transcriptase Polymerase Chain Reaction, Receptor, erbB-2 - metabolism, Prognosis, Poland - epidemiology, Genes, erbB-2, Gene Amplification, DNA Primers - genetics, Carcinoma, Ductal, Breast - mortality, Breast Neoplasms - mortality, Base Sequence

0 Comments

Editorial

01 January 2023 : Editorial  

Editorial: Current Status of Two Adjuvanted Malaria Vaccines and the World Health Organization (WHO) Strategy to Eradicate Malaria by 2030

Dinah V. Parums
Science Editor, Medical Science Monitor, International Scientific Information, Inc., Melville, NY, USA

DOI: 10.12659/MSM.939357

Med Sci Monit 2023; 29:e939357

SARS-CoV-2/COVID-19

26 January 2023 : Editorial  

Editorial: The XBB.1.5 (‘Kraken’) Subvariant of Omicron SARS-CoV-2 and its Rapid Global Spread

Med Sci Monit In Press; DOI: 10.12659/MSM.939580  

19 January 2023 : Clinical Research  

Evaluation of Health-Related Quality of Life and Mental Health in 729 Medical Students in Indonesia During ...

Med Sci Monit In Press; DOI: 10.12659/MSM.938892  

27 December 2022 : Clinical Research  

Effect of Physiotherapy to Correct Rounded Shoulder Posture in 30 Patients During the COVID-19 Pandemic in ...

Med Sci Monit 2022; 28:e938926

In Press

31 Jan 2023 : Clinical Research  

Balloon Dilation Eustachian Tuboplasty Combined with Tympanotomy Tube Insertion for Treatment of Refractory...

Med Sci Monit In Press; DOI: 10.12659/MSM.938879  

31 Jan 2023 : Clinical Research  

Comparison of Vision Correction and Corneal Thickness at 180-Day Follow-Up After Femtosecond Laser-Assisted...

Med Sci Monit In Press; DOI: 10.12659/MSM.939099  

30 Jan 2023 : Clinical Research  

Splenic Artery Steal Syndrome in Patients with Liver Cirrhosis: A Retrospective Clinical Study

Med Sci Monit In Press; DOI: 10.12659/MSM.938998  

27 Jan 2023 : Database Analysis  

Association Between Neutrophil-Lymphocyte Ratio and All-Cause Mortality in Critically Ill Patients with Chr...

Med Sci Monit In Press; DOI: 10.12659/MSM.938554  

Most Viewed Current Articles

13 Nov 2021 : Clinical Research  

Acceptance of COVID-19 Vaccination and Its Associated Factors Among Cancer Patients Attending the Oncology ...

DOI :10.12659/MSM.932788

Med Sci Monit 2021; 27:e932788

30 Dec 2021 : Clinical Research  

Retrospective Study of Outcomes and Hospitalization Rates of Patients in Italy with a Confirmed Diagnosis o...

DOI :10.12659/MSM.935379

Med Sci Monit 2021; 27:e935379

08 Mar 2022 : Review article  

A Review of the Potential Roles of Antioxidant and Anti-Inflammatory Pharmacological Approaches for the Man...

DOI :10.12659/MSM.936292

Med Sci Monit 2022; 28:e936292

01 Jan 2022 : Editorial  

Editorial: Current Status of Oral Antiviral Drug Treatments for SARS-CoV-2 Infection in Non-Hospitalized Pa...

DOI :10.12659/MSM.935952

Med Sci Monit 2022; 28:e935952

Your Privacy

We use cookies to ensure the functionality of our website, to personalize content and advertising, to provide social media features, and to analyze our traffic. If you allow us to do so, we also inform our social media, advertising and analysis partners about your use of our website, You can decise for yourself which categories you you want to deny or allow. Please note that based on your settings not all functionalities of the site are available. View our privacy policy.

Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750