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Kaur H, Hazarey V, Sharma G, Gosavi S, Pal RAGK, Gupta V. p53, Cytokeratin 19 Expression in Oral Squamous Cell Carcinoma and Correlation with Histopathologic Grading: An Immunohistochemical Study. Indian J Otolaryngol Head Neck Surg 2024; 76:103-111. [PMID: 38440427 PMCID: PMC10909024 DOI: 10.1007/s12070-023-04092-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2023] [Accepted: 07/14/2023] [Indexed: 03/06/2024] Open
Abstract
The purpose of this study was to examine the immunohistochemical expression of p53 and cytokeratin 19 (CK19) in normal oral mucosa (NOM) and oral squamous cell carcinoma (OSCC) and their association with histopathological differentiation grade. The secondary goal was to see if there was any correlation between p53 and CK19 expression in NOM and OSCC. A hospital-based retrospective analysis was conducted in which 40 NOM and 45 OSCC samples were acquired from archives and stained with mouse monoclonal antibodies p53 and CK19. For both the NOM and OSCC groups, the proportion of positively stained cells, staining intensity, and staining index were calculated. p53 immunoexpression revealed that 85% of positively stained cells in the NOM basal layer had a low staining index (mean ± SD 1.87 ± 0.34), whereas 66.7% of positively stained cells in the OSCC had a high staining index (mean ± SD 5.63 ± 3.02). When NOM and OSCC were compared, there was a statistically significant difference in staining intensity. However, despite a linear increase in the percentage of positive cells from well to poorly differentiated, the comparison between histopathological grades was non-significant. CK19 exhibited 18.5% positively stained cells in the NOM basal layer with a low staining index (mean ± SD 1.57 ± 0.53), whereas OSCC samples showed 4.44% immunopositivity with a high staining index. p53 is a marker of oral carcinogenesis independent of histological grade and CK19 expression. Further, CK19 is a marker of dysfunctional epithelial differentiation but lacks sensitivity and specificity; however, it demands further multicentric studies with a large sample size to draw definitive conclusions. Supplementary Information The online version contains supplementary material available at 10.1007/s12070-023-04092-7.
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Affiliation(s)
- Harpreet Kaur
- Division of Oral Pathology and Microbiology, Centre for Dental Education and Research, All India Institute of Medical Sciences, Delhi, India
| | - Vinay Hazarey
- Datta Meghe Institute of Medical Sciences Deemed University, Wardha, India
- Department of Oral Pathology, Government Dental College & Hospital, Nagpur, India
| | - Gitika Sharma
- Department of Oral Pathology and Microbiology, Post Graduate Institute of Dental Sciences, Pandit Bhagwat Dayal Sharma University of Health Sciences, Rohtak, Haryana 124001 India
| | - Suchitra Gosavi
- Department of Oral Pathology, Government Dental College & Hospital, Nagpur, India
| | - Rana AGK Pal
- Department of Pathology, Genesis Institute of Dental Sciences and Research, Ferozepur, India
| | - Vandana Gupta
- Division of Periodontics, Centre for Dental Education and Research, All India Institute of Medical Sciences, Delhi, India
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Lenze NR, Farquhar DR, Dorismond C, Sheth S, Zevallos JP, Blumberg J, Lumley C, Patel S, Hackman T, Weissler MC, Yarbrough WG, Olshan AF, Zanation AM. Age and risk of recurrence in oral tongue squamous cell carcinoma: Systematic review. Head Neck 2020; 42:3755-3768. [PMID: 32914472 DOI: 10.1002/hed.26464] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 07/19/2020] [Accepted: 08/26/2020] [Indexed: 12/29/2022] Open
Abstract
The incidence of oral tongue squamous cell carcinoma has been increasing in young patients (≤45 years) without a clear etiologic driver. It is unknown if younger patients have an increased risk of recurrence compared to older patients. A literature search was conducted through January 2020 using PubMed/MEDLINE, Embase, Cochrane, Scopus, Science Direct, and clinicaltrials.gov. This review was registered with PROSPERO (ID: CRD42020167498) and the PRISMA statement was followed. Studies were eligible for inclusion if they assessed risk of recurrence by age using a time-to-event analysis, used an age cutoff of ≤45 years or less for the younger cohort, and limited the analysis to the oral tongue subsite. Data were extracted independently by two reviewers using a form with a prespecified list of variables. There were 13 articles that met criteria for the qualitative synthesis (n = 1763 patients). The reported 5-year rates of disease-free survival ranged from 30% to 72% for the younger cohorts and 42% to 81% for the older cohorts. Three studies reported a statistically significant increased risk of recurrence in younger patients, three studies reported a nonsignificant increased risk in younger patients, and seven studies reported a similar risk in younger patients based on the time-to-event analyses. There may be an increased risk of recurrence for younger patients with oral tongue cancer. A definitive conclusion is precluded by limitations among individual studies, and additional research is warranted to examine this question.
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Affiliation(s)
- Nicholas R Lenze
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Douglas R Farquhar
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Christina Dorismond
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Siddharth Sheth
- Division of Hematology and Oncology, Department of Medicine, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Jose P Zevallos
- Department of Otolaryngology - Head and Neck Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri, USA
| | - Jeffrey Blumberg
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Catherine Lumley
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Samip Patel
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Trevor Hackman
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Mark C Weissler
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
| | - Wendell G Yarbrough
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA.,Department of Pathology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Andrew F Olshan
- Department of Epidemiology, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Adam M Zanation
- Department of Otolaryngology - Head and Neck Surgery, University of North Carolina School of Medicine, Chapel Hill, North Carolina, USA
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Campbell BR, Netterville JL, Sinard RJ, Mannion K, Rohde SL, Langerman A, Kim YJ, Lewis JS, Lang Kuhs KA. Early onset oral tongue cancer in the United States: A literature review. Oral Oncol 2018; 87:1-7. [PMID: 30527223 PMCID: PMC7039330 DOI: 10.1016/j.oraloncology.2018.10.009] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/04/2018] [Accepted: 10/06/2018] [Indexed: 12/11/2022]
Abstract
The incidence of early onset oral tongue squamous cell carcinoma (OTC) has been increasing in the United States, and no clear etiology has been identified. Studies on this topic have generally been small and presented varied results. The goal of this review is to analyze and synthesize the literature regarding early onset OTC risk factors, outcomes, and molecular analyses within the US. To date, studies suggest that early onset OTC patients tend to have less heavy cigarette use than typical onset patients, but there may be an association between early onset OTC and smokeless tobacco (chewing tobacco and snuff) use. Early onset OTC is associated with similar or possibly improved survival compared to typical onset OTC. There has been no evidence to support a significant role for human papillomavirus in development of early onset OTC. Further research with larger cohorts of these patients is needed to better characterize this disease entity.
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Affiliation(s)
- Benjamin R Campbell
- Vanderbilt University School of Medicine, 1161 21st Ave S #D3300, Nashville, TN 37232, USA.
| | - James L Netterville
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - Robert J Sinard
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - Kyle Mannion
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - Sarah L Rohde
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - Alexander Langerman
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - Young J Kim
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA.
| | - James S Lewis
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA; Vanderbilt University Medical Center, Department of Pathology, Microbiology, and Immunology, 1211 Medical Center Dr, Nashville, TN, 37232, USA.
| | - Krystle A Lang Kuhs
- Vanderbilt University Medical Center, Department of Otolaryngology, 1215 21st Ave S, Nashville, TN 37232, USA; Vanderbilt University Medical Center, 2525 West End Ave, Suite 300, Nashville, TN, 37203, USA.
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Vora HH, Trivedi TI, Shukla SN, Shah NG, Goswami JV, Shah PM. p53 Expression in Leukoplakia and Carcinoma of the Tongue. Int J Biol Markers 2018; 21:74-80. [PMID: 16847809 DOI: 10.1177/172460080602100202] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
There is growing interest in assessing multistep carcinogenesis and predicting its course using different molecular markers. TP53 is a tumor suppressor gene and appears to be one of the molecular targets of tobacco-related carcinogens in oral cancer. The present study evaluated the role of p53 expression in patients with leukoplakia and carcinoma of the tongue. p53 expression was studied by immunohistochemistry. All patients with leukoplakia of the tongue were male tobacco users. Nuclear staining of p53 was observed in 79% of those patients. Fifty percent, 25% and 4% of the patients expressed 1+, 2+ and 3+ nuclear staining, respectively. When leukoplakia patients were graded according to histopathology, 67% had hyperplasia and 33% had dysplasia. Nuclear p53 accumulation was 88% in hyperplasia and 62% in dysplasia. In patients with tongue cancer, nuclear accumulation of p53 was seen in only 19% of the tumors, with a staining intensity of 1+ in 13%, 2+ in 2% and 3+ in 4% of the tumors. The prevalence of nuclear p53 positivity (79%) was significantly higher in patients with leukoplakia than in patients with tongue cancer (19%; χ2 = 34.32, r = –0.45, df = 1, p = 0.0001; odds ratio (OR) = 16.66, 95% CI, 5.25–52.86). Therefore, leukoplakia patients who show p53 expression have a higher risk of developing tongue cancer than those who do not show p53 expression. As the percentage of positivity of nuclear p53 was very low, none of the clinicopathological parameters or disease status showed any significant association with it. The interesting finding is that none of the female cancer patients showed nuclear p53 expression. Therefore, p53 accumulation is believed to be an early event in neoplastic progression of the tongue.
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Affiliation(s)
- H H Vora
- Immunohistochemistry Division, The Gujarat Cancer and Research Institute, Ahmedabad, Gujarat, India.
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dos Santos Costa SF, Brennan PA, Gomez RS, Fregnani ER, Santos-Silva AR, Martins MD, de Castro-Junior G, Rahimi S, Fonseca FP. Molecular basis of oral squamous cell carcinoma in young patients: Is it any different from older patients? J Oral Pathol Med 2018; 47:541-546. [DOI: 10.1111/jop.12642] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2017] [Indexed: 12/17/2022]
Affiliation(s)
- Sara Ferreira dos Santos Costa
- Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | - Peter A. Brennan
- Department of Oral and Maxillofacial Surgery; Queen Alexandra Hospital; Portsmouth UK
| | - Ricardo Santiago Gomez
- Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
| | | | - Alan Roger Santos-Silva
- Department of Oral Diagnosis; Piracicaba Dental School; University of Campinas; Piracicaba Brazil
| | - Manoela Domingues Martins
- Department of Pathology; School of Dentistry; Federal University of Rio Grande do Sul; Porto Alegre Brazil
| | - Gilberto de Castro-Junior
- Faculdade de Medicina; Clinical Oncology; Instituto do Câncer do Estado de São Paulo; Universidade de São Paulo; São Paulo Brazil
| | - Siavash Rahimi
- Department of Histopathology; Queen Alexandra Hospital; Portsmouth UK
- School of Pharmacy and Biomedical Sciences; University of Portsmouth; Portsmouth UK
| | - Felipe Paiva Fonseca
- Department of Oral Surgery and Pathology; School of Dentistry; Universidade Federal de Minas Gerais; Belo Horizonte Brazil
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D'Souza W, Saranath D. OMICS, Oral Cancer Molecular Landscapes, and Clinical Practice. ACTA ACUST UNITED AC 2017; 21:689-703. [DOI: 10.1089/omi.2017.0146] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Wendy D'Souza
- Department of Biological Sciences, Sunandan Divatia School of Science, SVKM's NMIMS (Deemed-to-be) University, Mumbai, India
| | - Dhananjaya Saranath
- Department of Biological Sciences, Sunandan Divatia School of Science, SVKM's NMIMS (Deemed-to-be) University, Mumbai, India
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Tjioe KC, Tostes Oliveira D, Gavard J. Luteolin Impacts on the DNA Damage Pathway in Oral Squamous Cell Carcinoma. Nutr Cancer 2016; 68:838-47. [DOI: 10.1080/01635581.2016.1180411] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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"p53 mutation spectrum and its role in prognosis of oral cancer patients: A study from Gujarat, West India". Mutat Res 2015; 783:15-26. [PMID: 26687995 DOI: 10.1016/j.mrfmmm.2015.12.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2015] [Revised: 12/01/2015] [Accepted: 12/01/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND AND AIM p53 mutations are critical players in etiopathogenesis of oral cancer. Interestingly, they show differences in terms of type and codon specificity. These differences might be attributed to geographical variations in tobacco use. We aimed to analyze the frequency of p53 mutations in oral cancer patients from Gujarat, India and their effect on clinico-pathological features, local recurrence and survival. MATERIAL AND METHODS p53 mutation analysis was performed on 46 paired tissue samples (adjacent normal and primary malignant) using PCR-SSCP and sequencing. RESULTS Sequencing confirmed 51 p53 mutations in 46 paired tissues. Three novel mutations (frameshift deletion in exon 4; G>T transversion at codon 117 in exon 4 and G>A transition at codon 319 in exon 9) were identified. Distinct pattern of p53 mutations was observed: more common C>T transitions and recurring mutation sites at codon 90 and 116 in exon 4. Interestingly, the probability of developing recurrence was higher in small tumors (<4 cm) with p53 mutations and in cases with p53 mutations in both adjacent normal and malignant tissues. A significant low disease free survival and overall survival was observed in cases harboring truncating and transcriptionally non-active mutations. CONCLUSION We report a very high frequency and a diverse pattern of p53 mutations in cases from this region. Interestingly, three distinct novel mutations in exons 4 and 9 were also observed. Analyzing p53 mutation status in tumor tissues at an early stage could serve as an important prognostic factor.
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Braakhuis BJM, Rietbergen MM, Buijze M, Snijders PJF, Bloemena E, Brakenhoff RH, Leemans CR. TP53 mutation and human papilloma virus status of oral squamous cell carcinomas in young adult patients. Oral Dis 2013; 20:602-8. [PMID: 24112103 DOI: 10.1111/odi.12178] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2013] [Revised: 07/15/2013] [Accepted: 07/21/2013] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Little is known about the molecular carcinogenesis of oral squamous cell carcinoma (OSCC) in young adult patients. The aim of this study was to investigate the detailed TP53 mutation and human papilloma virus (HPV) status of OSCC in patients, younger than 45 years. METHODS TP53 mutations were determined with direct sequencing on paraffin-embedded carcinoma tissue from 31 young patients and compared with two older age OSCC reference groups: one from the same institute (N = 87) and an independent one (N = 675). Biologically active tumour HPV was detected by p16-immunohistochemistry followed by a HPV-DNA GP5 + /6 + -PCR. RESULTS HPV16 was present in one OSCC (3%). TP53 mutations were found in 14 (45%) OSCC: five were missense and nine resulted in a truncated protein. Six of these latter were insertions or deletions of one or more nucleotides leading to frameshift, one was at a splice site and two resulted in a stop codon. The percentage of truncating mutations (64% of all mutations) was higher than that observed in the institute's reference group (44%, P = 0.23) and in the independent reference group (24%, P = 0.002). CONCLUSIONS This study shows that TP53 mutations are common in OSCC of young adult patients; infection with biologically active HPV is rare.
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Affiliation(s)
- B J M Braakhuis
- Department of Otolaryngology/Head-Neck Surgery, VU University Medical Center, Amsterdam, The Netherlands
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Oral Squamous Cell Carcinoma From Users and Nonusers of Tobacco and Alcohol. Appl Immunohistochem Mol Morphol 2013; 21:148-53. [DOI: 10.1097/pai.0b013e3182558b65] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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Immunoexpression of p53 and hMSH2 in oral squamous cell carcinoma and oral dysplastic lesions in Yemen: relationship to oral risk habits and prognostic factors. Oral Oncol 2011; 48:120-4. [PMID: 21937259 DOI: 10.1016/j.oraloncology.2011.08.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2011] [Revised: 08/01/2011] [Accepted: 08/26/2011] [Indexed: 11/22/2022]
Abstract
Although several studies analyzed p53 and mismatch repair (MMR) gene expression separately in oral squamous cell carcinoma (SCC), no reports of combined assessment of both proteins in this cancer. The aim of this study was to investigate the roles of p53 and hMSH2 proteins in oral SCC as well as in oral dysplastic lesions (DL) in Yemen. Immunohistochemistry was used to examine the pattern of expression of p53 and hmsh2 proteins in 70 oral SCC and 21 oral DL obtained from Yemeni patients. p53 Immunoexpression was detected in 24 of the 70 oral SCC (34.3%) and 3 of 21 DL (14.3%) with no significant difference between the two groups. On the other hand, reduced expression of hMSH2 was detected in 26 of the 70 oral SCC (37.1%) and 2 of 21 oral DL (9.5%) with a statistically significant difference (P=0.03). Both proteins were significantly related to the grade of tumor differentiation (P=0.007 and 0.02, respectively). There was an inverse correlation between the levels of p53 and hMSH2 immunoexpression in the oral SCC (r=0.42, P=0.01). This study suggested that p53 may play a role in the early stages of oral carcinogenesis, while hMSH2 may be altered in the late stages. More importantly, the roles of p53 and hMSH2 in oral carcinogenesis seem to be interrelated in the pathogenetic pathway of oral SCC. Such a relationship has not been published previously in this type of cancer and needs to be clarified in future studies.
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Tandon S, Tudur-Smith C, Riley RD, Boyd MT, Jones TM. A systematic review of p53 as a prognostic factor of survival in squamous cell carcinoma of the four main anatomical subsites of the head and neck. Cancer Epidemiol Biomarkers Prev 2010; 19:574-87. [PMID: 20142252 DOI: 10.1158/1055-9965.epi-09-0981] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
OBJECTIVES To summarize existing evidence about whether the presence of mutant or upregulated p53 is a prognostic factor for patients presenting with squamous cell carcinoma arising from the larynx, oropharynx, hypopharynx, or oral cavity. METHOD Relevant articles were identified using strict criteria for systematic searches. Associations between mutant or upregulated p53 versus wild-type or low/undetectable p53 in relation to overall survival and DFS were summarized by extracting or deriving hazard ratio (HR) estimates. Random-effects meta-analyses were used to account for between-study heterogeneity and to summarize the effect of p53 across studies. RESULTS The meta-analyses gave a statistically significant pooled HR for overall survival in oral cavity [pooled HR, 1.48; 95% confidence interval, (95% CI), 1.03-2.11], and for disease-free survival in oral cavity (pooled HR, 1.47; 95% CI, 1.12-1.93) and in oropharynx (pooled HR, 0.45; 95% CI, 0.27-0.73). Despite attempts to limit it, between-study heterogeneity was large in the majority of meta-analyses and the prognostic value of p53 was generally inconsistent and inconclusive across studies. CONCLUSION The meta-analysis results highlight that current evidence about the prognostic value of p53 in patients with squamous cell carcinoma of the head and neck is inconclusive. Large heterogeneity exists across studies in study-level and patient-level characteristics, making it difficult to ascertain a clear picture. Future studies are required in which p53 expression is investigated in a more standardized and biologically informative manner. In particular, prospectively planned individual patient data meta-analyses are needed to establish the prognostic importance of p53 for specific subgroups of patients undergoing specific treatments.
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Affiliation(s)
- Sankalap Tandon
- Department of Otolaryngology/Head and Neck Surgery, Aintree University Hospitals NHS Foundation Trust, Liverpool, United Kingdom.
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Prognostic factors and survival analysis in a sample of oral squamous cell carcinoma patients. ACTA ACUST UNITED AC 2008; 106:685-95. [DOI: 10.1016/j.tripleo.2008.07.002] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2008] [Revised: 07/10/2008] [Accepted: 07/10/2008] [Indexed: 11/24/2022]
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Oliveira LR, Ribeiro-Silva A, Zucoloto S. Prognostic significance of p53 and p63 immunolocalisation in primary and matched lymph node metastasis in oral squamous cell carcinoma. Acta Histochem 2007; 109:388-96. [PMID: 17499344 DOI: 10.1016/j.acthis.2007.03.006] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2007] [Revised: 03/28/2007] [Accepted: 03/30/2007] [Indexed: 01/18/2023]
Abstract
This study evaluates the prognostic significance of p53 and p63 immunolocalisation in oral squamous cell carcinoma samples from 45 matched primary tumors (PT) and lymph node metastases (LNM). Data regarding patient age, gender, primary site, histological differentiation, metastasis, disease-free survival (DFS) and overall survival (OS) were available. p53 and p63 immunolabeling was detected in 17 (37.8%) and 23 (51.1%) of the PT, respectively. For LNM, there was p53 and p63 labeling in 23 (51.1%) and 26 (57.8%) cases, respectively. Most cases showed similar labeling in PT and the corresponding LNM (73.3% for p53 and 53.3% for p63, respectively). No statistically significant associations were found between p53 and p63 immunolabeling and histological differentiation; p63 positive tumors showed higher DFS (p=0.006) and OS (p=0.049); and p53-negative tumors had a higher DFS interval (p=0.009). Our findings suggest that initially p53-negative tumors and initially p63-positive tumors that retain this labeling pattern may follow less aggressive biological courses and present better prognoses.
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Affiliation(s)
- Lucinei Roberto Oliveira
- Department of Pathology, Ribeirao Preto Medical School, University of Sao Paulo, Av. Bandeirantes, 3900, Bairro Monte Alegre, 14049-900 Ribeirao Preto-SP, Brazil.
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Caly DDN, Cheter EZ, Rapoport A, Torloni H, Nonogaki S. Expressão do p53 no carcinoma epidermóide do lábio. Rev Col Bras Cir 2007. [DOI: 10.1590/s0100-69912007000200006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
OBJETIVO: Verificar o valor da expressão do p53 no carcinoma epidermóide (CEC) de lábio. MÉTODO: O estudo imunohistoquímico foi feito em material fixo em formol e mantido em bloco de parafina, corado com anticorpos anti-p53, segundo técnica da Streptavidina-Biotina-Peroxidase. Para análise estatística, foi empregado o teste de Fisher para a diferenciação de grupos em relação às variáveis do estudo. RESULTADOS: A expressão do p53 foi positiva em 87,5% do CEC bem diferenciado, 60% no moderadamente diferenciado e 91,67% no pouco diferenciado. Nas margens de ressecção cirúrgica foi negativa em 94,23% e positiva em 5,77%, havendo associação entre o grau de diferenciação e a expressão do p53 (p=0,05). CONCLUSÃO: A expressão do p53 foi positiva na lesão primária e negativa na margem de ressecção cirúrgica, mas não é determinante de mudanças no paradigma cirúrgico.
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de Oliveira LR, Ribeiro-Silva A, Zucoloto S. Prognostic impact of p53 and p63 immunoexpression in oral squamous cell carcinoma. J Oral Pathol Med 2007; 36:191-7. [PMID: 17391296 DOI: 10.1111/j.1600-0714.2007.00517.x] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
BACKGROUND The role of p53 and p63 proteins in the prognosis of oral squamous cell carcinoma (OSCC) is still debatable. Our aim here was to investigate the relationship between the immunoexpression of these proteins with some clinicopathologic parameters of prognostic significance in OSCC. METHODS Formalin-fixed paraffin-embedded sections from 106 patients were used for study together with the following data: primary site, histologic differentiation, recurrences, metastasis, disease-free survival and overall survival (OS). RESULTS In OSCCs, the positive rate for p63 protein immunoexpression (87.8%) was higher than p53 (52.8%). p53 expression correlated with metastasis. Tumors negative for p53 and with strong intensity for p63 expression had a significantly higher OS. CONCLUSIONS p53 overexpression is associated with a larger number of metastases and is correlated with a poor outcome as well as decreased intensity in p63 immunoexpression.
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Nakaya K, Yamagata HD, Arita N, Nakashiro KI, Nose M, Miki T, Hamakawa H. Identification of homozygous deletions of tumor suppressor gene FAT in oral cancer using CGH-array. Oncogene 2007; 26:5300-8. [PMID: 17325662 DOI: 10.1038/sj.onc.1210330] [Citation(s) in RCA: 69] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Homozygous deletions (HD) provide an important resource for identifying the location of candidate tumor suppressor genes. To identify the tumor suppressor gene in oral cancer, we employed high-resolution comparative genomic hybridization (CGH)-array analysis. We identified a homozygous loss of FAT (4q35), a new member of the human cadherin superfamily, from genome-wide screening of copy number alterations in one primary oral cancer. This result was evaluated by genomic polymerase chain reaction in 13 oral cancer cell lines and 20 primary oral cancers and Southern blot in the cell lines. We found frequent exonic HD of FAT in the cell lines (3/13, 23%) and in primary oral cancers (16/20, 80%). FAT expression was absent in these cell lines. Homozygous deletion hot spots were observed in exon 1 (9/20, 45%) and exon 4 (7/20, 35%). Moreover, loss of gene expression was identified in other types of squamous cell carcinoma. The methylation status of the FAT CpG island in squamous cell carcinomas correlated negatively with its expression. Our results identify mutations in FAT as an important factor in the development of oral cancer and indicate the importance of FATs function in some squamous cell carcinomas.
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Affiliation(s)
- K Nakaya
- Department of Oral and Maxillofacial Surgery, Organ Function Regenerative and Reconstructive Surgery, Ehime University Graduate School of Medicine, Toon-city, Ehime, Japan
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