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AJUBA is multifunctional scaffold protein which belongs to Zyxin family of proteins. It is known to have dual role in cancer as a tumor promoter and tumor suppressor. AJUBA has a key role in systemic malignancies like esophageal squamous cell carcinoma, colorectal cancer, cervical, breast, prostate cancer, etc. But there is very sparse literature available regarding its expression profile in oral squamous cell carcinoma (OSCC) and moreover its expression has not been observed in normal oral mucosa (NOM). Thus, the aim of this research is to explore the expression profile of AJUBA by immunohistochemical method in NOM and OSCC. Furthermore, we also evaluated the association of AJUBA expression with clinicopathologic parameters. A total of 84 samples of formalin fixed paraffin embedded tissue blocks comprising of 42 cases each of NOM and OSCC were subjected to detect immunoexpression of AJUBA. We found enhanced intense immune-expression of AJUBA in OSCC cases than compared with NOM and found to be statistically significant. The parameters specific to histologic tumor grade and inflammatory response in OSCC also found to have statistically significant with AJUBA expression. Our study is first of its kind to reveal AJUBA expression in basal and suprabasal layer of NOM suggestive of its definitive role in differentiation and stratification process. We also observed its intense expression in peripheral cell of tumor islands of OSCC cases, which can suggest its possible role in tumor growth and progression. Copyright © 2022 Wolters Kluwer Health, Inc. All rights reserved.


Priyanka Desai, Manjula M Awatiger, Deepa R Mane. Evaluation of Immunoexpression of AJUBA Protein in Normal Oral Mucosa and Oral Squamous Cell Carcinoma. Applied immunohistochemistry & molecular morphology : AIMM. 2023 Jan 01;31(1):1-8

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PMID: 36222508

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