Preliminary Study on the Expression of CLLD7 and CHC1L Proteins in Oral Squamous Cell Carcinoma

Overview

Journal Eur J Dent

Publisher Thieme

Specialty Dentistry

Date 2023 Jun 13

PMID 37311552

Authors

Boworn Klongnoi

Bishwa Prakash Bhattarai

Rachai Juengsomjit

Ounruean Meesakul

Sopee Poomsawat

Kajohnkiart Janebodin

Siribang-On Piboonniyom Khovidhunkit

Affiliations

Soon will be listed here.

Abstract

Objective: This study aimed to preliminarily evaluate the expression of two putative tumor suppressor proteins, including chronic lymphocytic leukemia deletion gene 7 (CLLD7) and chromosome condensation 1-like (CHC1L) proteins in oral squamous cell carcinoma (OSCC).

Materials And Methods: Expression of CLLD7 and CHC1L proteins was analyzed in 19 OSCC and 12 normal oral mucosa (NOM) using immunohistochemistry. The percentage of positive cells and intensity of staining were semiquantitatively assessed and expressed with an immunoreactive score. The number of positive cells at various subcellular localizations was evaluated and presented in percentages. The immunoreactivity scores and percentages of positive cells at various localizations were compared between the normal and OSCC groups with statistical significance at -value less than 0.05.

Results: According to immunohistochemical analysis, the immunoreactivity scores for both CLLD7 and CHC1L were higher in NOM than those of OSCC. Analysis of CLLD7 localization revealed predominant nuclear staining at basal and parabasal areas in NOM, whereas more cytoplasmic staining was observed in OSCC. For CHC1L, nuclear staining was prominent in NOM. In contrast, significantly increased plasma membrane staining was detected in OSCC.

Conclusion: The expression of CLLD7 and CHC1L proteins was reduced in OSCC. Alterations in the subcellular localization of these two proteins in OSCC were also demonstrated. These preliminary results suggest that CLLD7 and CHC1L are aberrantly expressed in OSCC. The precise mechanisms of these putative tumor suppressor proteins in OSCC require future studies.

Citing Articles

Expression of CLLD7 and CHC1L Proteins in Oral Epithelial Dysplasia in a Group of Thai Patients.

Wiphakphongpakorn P, Juengsomjit R, Poomsawat S, Meesakul O, Bhattarai B, Klongnoi B Asian Pac J Cancer Prev. 2024; 25(4):1257-1264.

PMID: 38679985 PMC: 11162717. DOI: 10.31557/APJCP.2024.25.4.1257.

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