Cited by 4DNA Repair MechanismsNonmelanoma Skin Cancer StudiesCancer-related Molecular Pathways

Role of Xeroderma Pigmentosum Group D in Cell Cycle and Apoptosis in Cutaneous Squamous Cell Carcinoma A431 Cells

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Liu, Ou-Gen, Xiong, Xiao-Yan, Li, Chun-Ming, Zhou, Xian-Sheng, Li, Si-Si·2018·Medical Science Monitor

Abstract

BACKGROUND Cutaneous squamous cell carcinoma (cSCC) is the second most widespread cancer in humans and its incidence is rising. Novel therapy with better efficacy is needed for clinical treatment of cSCC. Many studies have shown the importance of DNA repair pathways during the development of cancer. A key nucleotide excision repair (NER) protein, xeroderma pigmentosum group D (XPD), is responsible for the excision of a large variety of bulky DNA lesions. MATERIAL AND METHODS To explore the role of XPD in A431 cells, we overexpressed XPD in A431 cells and performed MTT assay, flow cytometry, and Western blot analysis to examine cell proliferation, cell apoptosis, and genes expression. RESULTS We found that the overexpression of XPD suppressed cell viability, induced cell cycle arrest at G1 phase, and promoted cell apoptosis. Additionally, XPD blocked the expression of c-myc, cdc25A, and cdk2, and improved the levels of HIPK2 and p53. CONCLUSIONS These results provide new evidence to reveal the role of XPD in cSCC A431 cells and suggest that XPD may serve as an anti-oncogene during cSCC development.

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Authors
Liu, O.-G., Xiong, X.-Y., Li, C.-M., Zhou, X.-S., & Li, S.-S.
Affiliations
  • Second Affiliated Hospital of Nanchang University (CN)
  • Department of Ophthalmology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
  • Department of Dermatology, The Second Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China (mainland)
Corresponding author
Liu, Ou-Gen
Venue
Medical Science Monitor
Published
2018-01-24
Volume
24
Pages
453-460
ISSN
  • 1234-1010 (ISSN-L)
  • 1643-3750
OpenAlex
W2790473925
Cited by
4
References
35
Citations by year
2026: 1 · 2024: 1 · 2021: 1 · 2020: 1
FWCI
0.18
Type
journal article
Language
en
Open access
Licence
cc-by-nc-nd
Locations
  • Medical Science Monitor (publishedVersion, cc-by-nc-nd)
  • PubMed Central (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
Natural Science Foundation of Jiangxi Province
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › DNA Repair Mechanisms
  • Health Sciences › Medicine › Epidemiology › Nonmelanoma Skin Cancer Studies
  • Health Sciences › Medicine › Oncology › Cancer-related Molecular Pathways
Keywords
xeroderma pigmentosum group D, cutaneous squamous cell carcinoma, A431 cells, nucleotide excision repair, DNA repair, apoptosis, cell cycle arrest, G1 phase, cell proliferation, c-Myc, CDC25A, CDK2, HIPK2, p53, tumor suppressor
MeSH terms
Carcinoma, Squamous Cell, Cell Cycle, Humans, Skin Neoplasms, Xeroderma Pigmentosum, Gene Expression Regulation, Neoplastic, G1 Phase, Apoptosis, Cell Line, Tumor, Cell Proliferation, Cell Cycle Checkpoints

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