Keratin 5 expression in squamocellular carcinoma of the head and neck

Vasca,Virgil; Vasca,Elisabeta; Freiman,Paul; Marian,Diana; Luce,Amalia; Mesolella,Massimo; Caraglia,Michele; Ricciardiello,Filippo; Duminica,Tatiana

doi:10.3892/ol.2014.2591

December-2014 Volume 8 Issue 6

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December-2014 Volume 8 Issue 6

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Article

Keratin 5 expression in squamocellular carcinoma of the head and neck

Authors:
- Virgil Vasca
- Elisabeta Vasca
- Paul Freiman
- Diana Marian
- Amalia Luce
- Massimo Mesolella
- Michele Caraglia
- Filippo Ricciardiello
- Tatiana Duminica
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Affiliations: Faculty of Medicine, Pharmacy and Dental Medicine, ‘Vasile Goldiş’ Western University of Arad, Arad 310025, Romania, Department of Biochemistry, Biophysics and General Pathology, The Second University of Naples, Naples I‑80138, Italy, Department of Otolaryngology, Head and Neck Surgery, The University of Naples ‘Federico II’, Naples I‑80131, Italy
Pages: 2501-2504
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Published online on: October 9, 2014

https://doi.org/10.3892/ol.2014.2591
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Abstract

Keratin 5 (K5) is present in the basal layer of a stratified squamous keratinized and non‑keratinized epithelium. K5 and K14 have been demonstrated in the mucosa and tumors of the oral cavity, oropharynx, hypopharynx and larynx, and in the mitotic active basal cells of a stratified squamous epithelium. The aim of the present study was to assess K5 expression in squamocellular carcinoma with various localizations in the head and neck. A total of 13 biopsy fragments were included from patients diagnosed with squamocellular carcinoma of the larynx area (n=2), pharynx (n=2), hard palate (n=1), tongue (n=2), submandibular (n=1), lip (n=1), gingival sulcus (n=1), nasal pyramid (n=1), maxilla (n=1) and zygomatic (n=1). The immunohistochemical staining for K5 was evaluated according to the following score criteria: 0 (0% positive cells); 1 (<10% positive cells); 2 (10‑30% positive cells); and 3 (>30% positive cells). K5 expression was observed in all squamocellular carcinomas included in the present study with scores between 1 and 3. For well‑ and moderately‑differentiated histopathological types, a maximum score of 3 was recorded for all of the cases, not including the laryngeal area, which presented a score of 2. The following scores were identified in the regions of the poorly differentiated carcinomas: Jaw, 3; gingival sulcus, 2; and tongue and submandibular area, 1. These observations may aid with an improved stratification of head and neck squamocellular carcinoma, thus improving the diagnosis and treatment strategies for this type of cancer.

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Journals

International Journal of Molecular Medicine

International Journal of Oncology

Molecular Medicine Reports

Oncology Reports

Experimental and Therapeutic Medicine

Oncology Letters

Biomedical Reports

Molecular and Clinical Oncology

World Academy of Sciences Journal

International Journal of Functional Nutrition

International Journal of Epigenetics

Medicine International

Keratin 5 expression in squamocellular carcinoma of the head and neck

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