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

17 July 2013 : Original article  

Association between infection of virulence cagA gene Helicobacter pylori and laryngeal squamous cell carcinoma

Paweł Krzysztof BurdukABCDEFG

DOI: 10.12659/MSM.889011

Med Sci Monit 2013; 19:584-591


BACKGROUND: The aim of the study was to evaluate the presence of cagA gene Helicobacter pylori in etiopathogenesis of initiation and development of larynx squamous cell carcinoma (LSCC) and its predictable role as a prognostic factor.

MATERIAL AND METHODS: The prospective, controlled study involved a series of 75 patients (65 male, 10 female, mean age 59.1 years, range 43 to 79 years) with larynx cancer. Samples of larynx cancerous tissue, each of 10–15 mg, were obtained from fresh tissues and were used for nucleic acid purification. DNA was extracted from 225 samples (larynx tumor – I (75), margin of tumor and normal tissue – II (75) and normal larynx tissue from opposite side to the tumor – III). All samples were subjected to H. pylori ureA detection by the PCR H. pylori diagnostic test. Samples that were positive for ureA H. pylori gene were evaluated for cagA H. pylori gene.

RESULTS: Presence of H. pylori cagA gene was identified in 46,7% to 49,3% of 75 H. pylori ureA gene-positive larynx cancer depending of tissue location. There was a correlation of high incidence of positive cagA gene in larynx cancer tissue in supraglottic versus subglottic and glottic location. We observed a predominance of cagA gene in LSCC in patients with positive cervical lymph nodes and clinical stage T3 and T4.

CONCLUSIONS: H. pylori is present in larynx tissue and may be a possible carcinogen or co-carcinogen in LSCC development, but that must be addressed by future investigations. The presence of cagA gene in larynx cancer tissues significantly decreases survival rate and increases the disease recurrence possibilities.

Keywords: Laryngeal Neoplasms - pathology, Helicobacter pylori - pathogenicity, Helicobacter Infections - pathology, Genes, Bacterial - genetics, Carcinoma, Squamous Cell - pathology, Base Sequence, Bacterial Proteins - genetics, Antigens, Bacterial - genetics, Molecular Sequence Data, Poland - epidemiology, Polymerase Chain Reaction, Recurrence, Sequence Analysis, DNA, Survival Rate, Virulence - genetics



01 May 2022 : Editorial  

Editorial: Cardiovascular Complications at One Year After SARS-CoV-2 Infection are Independent of Underlying Cardiovascular Risk Factors or Severity of COVID-19

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

DOI: 10.12659/MSM.937048

Med Sci Monit 2022; 28:e937048


04 May 2022 : Clinical Research  

Effects of Wearing Face Masks on Exercise Capacity and Ventilatory Anaerobic Threshold in Healthy Subjects ...

Med Sci Monit In Press; DOI: 10.12659/MSM.936069  

22 April 2022 : Clinical Research  

Factors Associated with Falls During Hospitalization for Coronavirus Disease 2019 (COVID-19)

Med Sci Monit In Press; DOI: 10.12659/MSM.936547  

27 April 2022 : Meta-Analysis  

Effect of the COVID-19 Pandemic on Serum Vitamin D Levels in People Under Age 18 Years: A Systematic Review...

Med Sci Monit In Press; DOI: 10.12659/MSM.935823  

06 May 2022 : Clinical Research  

COVID-19: Another Cause of Dental Anxiety?

Med Sci Monit 2022; 28:e936535

In Press

19 May 2022 : Clinical Research  

Association Between Serum Homocysteine Levels and Severity of Diabetic Kidney Disease in 489 Patients with ...

Med Sci Monit In Press; DOI: 10.12659/MSM.936323  

18 May 2022 : Clinical Research  

Physical and Psychosocial Concept Domains Related to Health-Related Quality of Life (HRQL) in 50 Girls and ...

Med Sci Monit In Press; DOI: 10.12659/MSM.936801  

18 May 2022 : Clinical Research  

Association Between Variants of the Mannose-Binding Lectin 2 Gene and Susceptibility to Sepsis in the Haina...

Med Sci Monit In Press; DOI: 10.12659/MSM.936134  

17 May 2022 : Clinical Research  

Clinical Application of C-TIRADS Category and Contrast-Enhanced Ultrasound in Differential Diagnosis of Sol...

Med Sci Monit In Press; DOI: 10.12659/MSM.936368  

Most Viewed Current Articles

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 Nov 2020 : Review article  

Long-Term Respiratory and Neurological Sequelae of COVID-19

DOI :10.12659/MSM.928996

Med Sci Monit 2020; 26:e928996

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