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

30 January 2007

Expression of alpha6 integrin subunit is associated with malignancy in gastric gastrointestinal stromal tumors.

Hiromitsu Takeyama, Hitoshi Funahashi, Hirozumi Sawai, Hiroki Takahashi, Minoru Yamamoto, Yoshimi Akamo, Tadao Manabe

Med Sci Monit 2007; 13(2): CR51-56 :: ID: 473726

Abstract

BACKGROUND: Gastrointestinal stromal tumors (GISTs) are the most common non-epithelial neoplasms of the gastrointestinal tract. The aim of this study was to investigate the clinicopathological and immunohistochemical features of gastric GISTs and to evaluate the degree of integrin expression in order to determine the need for surgery or predict the prognosis for GIST patients. MATERIAL/METHODS: Clinicopathological findings were obtained from patients' records. Specimens from 32 cases of gastric GIST were analyzed with immunohistochemical methods. The c-kit negative examples among the original 48 patients with gastric submucosal and muscle layer tumors were excluded from the study. RESULTS: There was a significant correlation between p53 protein expression and tumor malignancy. The positive staining for proliferating cell nuclear antigen was observed in all patients, and the mean tumor proliferation index for benign and malignant groups were 3.0% and 16.3%, respectively. alpha5beta1 integrin and alpha6 integrin subunit were expressed from moderately to strongly in tumor cells, and alpha 6 integrin subunit expression correlated significantly with whether tumors were classified as benign or malignant. However, there were no significant differences between the survival of GIST patients and integrin expression, mitotic rate, tumor size, or tumor malignancy. CONCLUSIONS: Malignant GISTs show significant expression of alpha6 integrin subunit. It may be useful in supporting other parameters, such as p53, MI, and tumor size. We suggest that alpha6 integrin subunit expression may be useful as an indication for surgery and also as one of several prognostic factors.

Keywords: Aged, 80 and over, Gastrointestinal Stromal Tumors - surgery, Integrin alpha6 - metabolism, Stomach Neoplasms - surgery

Add Comment 0 Comments

Editorial

01 November 2024 : Editorial  

Editorial: Artificial Intelligence (AI), Digital Image Analysis, and the Future of Cancer Diagnosis and Prognosis

Dinah V. Parums

DOI: 10.12659/MSM.947038

Med Sci Monit 2024; 30:e947038

0:00

In Press

Clinical Research  

Adipose-Derived Mesenchymal Stem Cells from Arthritis Patients: Differential Modulation of CD4⁺ T Cell Acti...

Med Sci Monit In Press; DOI: 10.12659/MSM.945273  

0:00

Review article  

Surgical Advances in the Treatment of Acromioclavicular Joint Injury: A Comprehensive Review

Med Sci Monit In Press; DOI: 10.12659/MSM.942969  

0:00

Clinical Research  

Analysis of Mortality Causes and Locations in Veterans with ALS: A Decade Review

Med Sci Monit In Press; DOI: 10.12659/MSM.945816  

0:00

Clinical Research  

Impact of Prior Cesarean Delivery on Pregnancy Outcomes and Hemorrhage Risks in Complete Placenta Previa: A...

Med Sci Monit In Press; DOI: 10.12659/MSM.944432  

0:00

Most Viewed Current Articles

17 Jan 2024 : Review article   6,511,914

Vaccination Guidelines for Pregnant Women: Addressing COVID-19 and the Omicron Variant

DOI :10.12659/MSM.942799

Med Sci Monit 2024; 30:e942799

0:00

14 Dec 2022 : Clinical Research   1,913,219

Prevalence and Variability of Allergen-Specific Immunoglobulin E in Patients with Elevated Tryptase Levels

DOI :10.12659/MSM.937990

Med Sci Monit 2022; 28:e937990

0:00

16 May 2023 : Clinical Research   695,669

Electrophysiological Testing for an Auditory Processing Disorder and Reading Performance in 54 School Stude...

DOI :10.12659/MSM.940387

Med Sci Monit 2023; 29:e940387

0:00

07 Jan 2022 : Meta-Analysis   261,779

Efficacy and Safety of Light Therapy as a Home Treatment for Motor and Non-Motor Symptoms of Parkinson Dise...

DOI :10.12659/MSM.935074

Med Sci Monit 2022; 28:e935074

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