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Updated: May 13, 2026

Establishment of a Clinic-based Biorepository
Published on: May 29, 2017
Lack of increased P15INK4B protein expression in basal cell carcinomas
Ahmed Ismail Hassan Moad1, Mei Lan Tan, Gurjeet Kaur
1Advanced Medical and Dental Institute, University Sains Malaysia, Penang, Malaysia. mohamed.mabruk@.ubd.edu.bn
Background:
The basal cell carcinoma (BCC) is the most common non-melanoma skin cancer (NMSK). BCC might develop because of the faulty cell cycle arrest. P15INK4b is a tumor suppressor gene, involved in cell cycle arrest and inactivated in most human cancers. The role of p15INK4b protein expression in the genesis of BCC is as yet unknown. In a previous study we showed the absence of p15INK4b expression in the majority of tissue microarray cores of cutaneous squamous cell carcinoma (SCCs), another type of non-melanoma skin cancer, indicating that p15INK4b could possibly be involved in the pathogenesis of cutaneous SCC. The aim of this study was to investigate p15INK4b protein expression in BCCs.
Materials And Method:
Protein expression of p15INK4b in 35 cases of BCC tissue arrays and 19 cases of normal human skin tissue was studied using an immunohistochemical approach.
Results:
The expression of p15INK4b was not significantly different in the BCC cases as compared with normal human skin (p=0.356; p>0.05). In addition, there were no significant relationship between clinicopathologic variables of patients (age and sex) and p15INK4b protein expression.
Conclusions:
Our finding may indicate that p15INK4b protein expression does not play a role in the genesis of BCC.
Insights
Basal cell carcinoma (BCC) is a common skin cancer. This study found that p15INK4b protein expression did not differ between BCC and normal skin, suggesting it may not be involved in BCC development.
Area of Science:
- Oncology
- Dermatology
- Molecular Biology
Background:
- Basal cell carcinoma (BCC) is the most prevalent non-melanoma skin cancer (NMSC).
- Faulty cell cycle arrest is implicated in BCC development.
- p15INK4b, a tumor suppressor gene, is crucial for cell cycle arrest and frequently inactivated in cancers.
Purpose of the Study:
- To investigate the role of p15INK4b protein expression in the pathogenesis of Basal Cell Carcinoma (BCC).
- To determine if p15INK4b expression differs between BCC and normal skin tissues.
Main Methods:
- Immunohistochemical analysis was employed to assess p15INK4b protein expression.
- The study included 35 cases of BCC tissue arrays and 19 cases of normal human skin tissue.
Main Results:
- No significant difference in p15INK4b protein expression was observed between BCC cases and normal human skin (p=0.356).
- p15INK4b expression showed no significant correlation with clinicopathological variables such as patient age and sex.
Conclusions:
- The findings suggest that p15INK4b protein expression is unlikely to play a significant role in the genesis of Basal Cell Carcinoma.
- Further research may be needed to explore other potential molecular mechanisms in BCC development.
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