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Iranian Journal of Otorhinolaryngology، جلد ۲۸، شماره ۶، صفحات ۳۸۹-۳۹۷
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عنوان انگلیسی Immunohistochemical Expression of CD56 and ALDH1 in Common Salivary Gland Tumors
چکیده انگلیسی مقاله Introduction: Natural killer (NK) cells, of which CD56 is a specific marker, play an important role in host defense against tumors. Cancer stem cells, of which aldehyde dehydrogenase isoform 1 (ALDH1) is an immunohistochemical marker, are a group of tumorigenic cells which are involved in migration and tumor recurrences. We aimed to evaluate the expression of ALDH1 and CD56 in common salivary gland tumors, as well as their relationship with each other and with a number of clinicopathologic factors. Materials and Methods: Forty-five paraffin blocks of salivary gland tumors (pleomorphic adenoma, mucoepidermoid carcinoma and adenoid cystic carcinoma, 15 samples each) were selected. Malignant tumors were classified into two groups: low-grade (including mucoepidermoid carcinoma grade I) and high-grade (including mucoepidermoid carcinoma grade III and adenoid cystic carcinoma). Immunohistochemical staining for ALDH1 and CD56 markers was performed. Data were analyzed using SPSS (20) and the Chi-square test. Results: CD56 expression was significantly higher in benign and high-grade malignant tumors (P=0.01). ALDH1 overexpressed in all three salivary tumors, but not to statistically significant degree (P=0.54). There was no statistically significant correlation between ALDH1 and CD56 expression with demographic factors (age, gender, or location of tumor; P>0.05). Conclusion: It appears that the number of NK cells and their function change in different types of salivary gland tumors (benign/malignant) and stroma. NK cells are important components of the anti-tumor system; therefore immune dysfunction is associated with tumor progression in tumors of the salivary gland. ALDH1 overexpression suggests its role in tumorogenesis, but ALDH1 is not involved in the morphogenesis of salivary gland tumors.
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نویسندگان مقاله صفورا سیفی | safoura seifi
department of oral amp;amp; maxillofacial pathology, school of dentistry, babol university of medical sciences, babol, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

مریم سید مجیدی | maryam seyed majidi
department of oral amp;amp; maxillofacial pathology, school of dentistry, babol university of medical sciences, babol, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

جهان شاه صالحی نژاد | jahan shah salehi nezhad
dental research centre, school of dentistry, mashhad university of medical sciences, mashhad, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

همت قلی نیا | hemat gholi nia
health research institute, babol university of medical science, mazandaran, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی مشهد (Mashhad university of medical sciences)

فاطمه علی اکبر پور | fatemeh ali akbar pour
department of oral amp;amp; maxillofacial pathology, school of dentistry, babol university of medical sciences, babol, iran.

سازمان اصلی تایید شده: دانشگاه علوم پزشکی بابل (Babol university of medical sciences)

نشانی اینترنتی http://ijorl.mums.ac.ir/article_7767.html
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