Preliminary Study on the Expression of CLLD7 and CHC1L Proteins in Oral Squamous Cell Carcinoma
Issued Date
2023-01-01
Resource Type
ISSN
13057456
eISSN
13057464
Scopus ID
2-s2.0-85162769981
Journal Title
European Journal of Dentistry
Rights Holder(s)
SCOPUS
Bibliographic Citation
European Journal of Dentistry (2023)
Suggested Citation
Klongnoi B., Bhattarai B.P., Juengsomjit R., Meesakul O., Poomsawat S., Janebodin K., Khovidhunkit S.O.P. Preliminary Study on the Expression of CLLD7 and CHC1L Proteins in Oral Squamous Cell Carcinoma. European Journal of Dentistry (2023). doi:10.1055/s-0043-1768468 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/87769
Title
Preliminary Study on the Expression of CLLD7 and CHC1L Proteins in Oral Squamous Cell Carcinoma
Author's Affiliation
Other Contributor(s)
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 p -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.