Comprehensive Data of P53 R282 Gene Mutation with Human Papillomaviruses (HPV)-Associated Oral Squamous Cell Carcinoma (OSCC).

Authors:
Tipaya Ekalaksananan
Tipaya Ekalaksananan
Khon Kaen University
Thailand
Dr. Weerayut Wongjampa, Ph.D. (Medical Microbiology)
Dr. Weerayut Wongjampa, Ph.D. (Medical Microbiology)
Department of Microbiology, Faculty of Medicine, Khon Kaen University
Khon Kaen | Thailand
Pensiri Phusingha
Pensiri Phusingha
Khon Kaen University
ศิลา | Thailand
Jureeporn Chuerduangphui
Jureeporn Chuerduangphui
Khon Kaen University
Patravoot Vatanasapt
Patravoot Vatanasapt
Khon Kaen University
Thailand
Supannee Promthet
Supannee Promthet
Khon Kaen University
Thailand
Natcha Patarapadungkit
Natcha Patarapadungkit
Khon Kaen University
Chamsai Pientong
Chamsai Pientong
Khon Kaen University
Thailand

Pathol Oncol Res 2019 Jun 13. Epub 2019 Jun 13.

Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand.

Alterations of the P53 gene and human papillomavirus (HPV) infection are associated with development of oral squamous cell carcinoma (OSCC). We aimed to identify mutation of P53 exon 8 codon 282 in OSCC and correlate these with HPV infection as well as histopathological grade of OSCC. Samples of known HPV infection status were studied including oral lesion cells, formalin-fixed paraffin embedded (FFPE) tissues from OSCC and exfoliated oral cells of matched age-sex controls. P53 exon 8 mutation was detected using the polymerase chain reaction (PCR). Mutation of codon 282 was identified by allele-specific oligonucleotide typing (ASO) using EvaGreen real-time PCR. The PCR products were analyzed by gel electrophoresis and melting curve analysis. Mutation of P53 exon 8 was seen in 81.7% and 69.6% of FFPE OSCC tissues and oral lesion cells, respectively. This was significantly higher than in controls (16.7%). Frequency of mutation did not differ between HPV-positive samples (62.5% and 81.8% in oral lesion cells and FFPE tissue samples, respectively) and HPV-negative samples (73.3% and 81.5% in oral lesion cells and FFPE tissue samples, respectively). This finding is similar to P53 codon 282 mutation that was found only in FFPE tissues (35.0%) and oral lesion cells (32.6%) from both HPV-positive and negative OSCC. Interestingly, frequency of mutation was higher in well-differentiated OSCC with HPV-infection (28.1%) than without HPV (14.8%). This result demonstrated a mutation hot spot in P53 associated with oral carcinogenesis and might be useful to guide chemotherapeutic modality for HPV-associated OSCC in northeast Thailand.

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http://dx.doi.org/10.1007/s12253-019-00673-6DOI Listing

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June 2019
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