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Julius P, Siyumbwa SN, Moonga P, Maate F, Kaile T, Kang G, West JT, Wood C, Angeletti PC. Clinical and Pathologic Presentation of Primary Ocular Surface Tumors among Zambians. Ocul Oncol Pathol 2021; 7:108-120. [PMID: 33869164 PMCID: PMC8024974 DOI: 10.1159/000511610] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2020] [Accepted: 09/09/2020] [Indexed: 01/25/2023] Open
Abstract
AIM This study aimed to characterize the clinical and pathologic presentation of ocular surface tumors (OSTs) and to more precisely differentiate the grades of ocular surface squamous neoplasia (OSSN) and benign lesions among Zambians. METHODS Two-hundred sixty-five Zambian patients presenting with ocular surface growths, suspicious for OSSN, were recruited between November 2017 and November 2019 to a cross-sectional study to investigate their lesions. Sociodemographic data were collected, HIV infection status and vision tests were performed, and lesions were measured and documented. Lesions >2 mm in diameter were excised and sent for pathology analysis. In addition to the biopsies, tears, blood, and buccal swabs were collected. CD4+ T-cell counts were measured by flow cytometry. Lesions were classified according to the WHO guidelines. χ2 and bivariate correlations were used to analyze variable associations and strengths with phi/Cramer's V and correlation coefficients, respectively. Binary logistics was used to adjust for covariance. RESULTS In this study, 68.3% of the participants were found to be HIV positive. The most frequent diagnoses were invasive OSSN (45.3%), preinvasive OSSN (29.1%), and pterygium (22.6%). Invasive OSSN comprised keratinizing squamous cell carcinoma (SCC) (87.5%), basaloid SCC (3.3%), and spindle cell carcinoma (3.3%). Unusual carcinomas, not described previously, included hybrid SCC (5.0%) and acantholytic SCC (0.8%). Invasive OSSN had advanced tumor (T3/T4) staging (93.3%) at diagnosis. Lymphadenopathy was rare (2.3%), and metastasis was absent. Patients were mostly female (59.2%). Median age was 36 (interquartile ranges 33-41) years (ranges 18-81). Patients with invasive OSSN were more likely to present with pain (p = 0.007), redness (p = 0.034), excessive tearing (p = 0.0001), discharge (p = 0.011), bleeding (p = 0.007), reduced vision (p = 0.0001), fungating lesion (p = 0.001), and blindness (p = 0.005); location at temporal limbus (p = 0.0001), inferior limbus (p = 0.0001), or circumlimbal (p = 0.001); and extension to cornea (p = 0.006) and forniceal palpebral conjunctiva (p = 0.001). Invasive OSSN was associated with any smoking habit and alcohol consumption (p = 0.04 and 0.03, respectively). HIV positivity was strongly associated with OSSN (74.6% OSSN vs. 49.3% benign lesions; p = 0.0001; phi: 0.237 [p = 0.0001]). CONCLUSION OSTs are very common in Zambia and are strongly associated with HIV coinfection. Patients with OSSN were more likely to be HIV positive than those with pterygia. Despite the commonality of OSTs in sub-Saharan Africa, these cancers have historically been poorly characterized.
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Affiliation(s)
- Peter Julius
- Department of Pathology and Microbiology, School of Medicine, Lusaka, Zambia
| | | | - Phyllis Moonga
- University Teaching Hospital, Eye Hospital, Lusaka, Zambia
| | - Fred Maate
- Department of Pathology and Microbiology, School of Medicine, Lusaka, Zambia
| | - Trevor Kaile
- Department of Pathology and Microbiology, School of Medicine, Lusaka, Zambia
| | - Guobin Kang
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - John T. West
- Nebraska Center for Virology and the Department of Biochemistry, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Charles Wood
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA
| | - Peter C. Angeletti
- Nebraska Center for Virology and the School of Biological Sciences, University of Nebraska-Lincoln, Lincoln, Nebraska, USA,*Peter C. Angeletti, Nebraska Center for Virology, University of Nebraska-Lincoln, 4240 Fair St., Lincoln, NE 68583-0900 (USA),
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Trinh JM, Thomas J, Salleron J, Henrot P. Differences in clinical and imaging characteristics between p16-positive non-smokers and p16-positive smokers or p16-negative patients in oropharyngeal carcinoma. Sci Rep 2021; 11:3314. [PMID: 33558647 PMCID: PMC7870833 DOI: 10.1038/s41598-021-82999-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Accepted: 01/25/2021] [Indexed: 11/24/2022] Open
Abstract
The eighth edition of the TNM classifies oropharyngeal squamous cell carcinomas (OSCCs) depending on p16 status. Some imaging features are reportedly associated more frequently with p16-positive (P16+) OSCC than p16-negative (p16−) OSCC. However, classical risk factors such as tobacco use were not specifically considered when assessing these imaging features. We aimed to evaluate whether P16+ OSCCs have different epidemiological, clinical, prognostic and imaging features depending on smoking status, and to compare P16+ and p16− groups. A retrospective study of data from 85 patients with P16+ OSCC (41 non-smokers, 44 smokers) and 36 with p16− OSCC from 2011 to 2020 was carried out, assessing epidemiological data, clinical aspects of the tumour and presence of adenopathy. Staging was assessed according to the seventh and eighth editions of the TNM. Compared with P16+ OSCC non-smokers, P16+ OSCC smokers had tumours that were less well-defined (36.6% vs 77.8%, p < 0.001), more ulcerated (85.4% vs 44.4%, p < 0.001) and more necrotic (53.7% vs 25%, p = 0.012). There was also less downstaging from N2 or N3 of the seventh edition of the TNM to N1 of the eighth edition for smokers than non-smokers (22.7% vs 43.9%, p = 0.042). Compared with p16− tumours, more P16+ tumours had well-defined contours (55.8% vs 22.2%, p = 0.001), were exophytic (89.6% vs 72.2%, p = 0.023), less necrotic (40.3% vs 80.6%, p < 0.001), less ulcerated (97.2% vs 66.2%, p = 0.006) and involved less muscle tissue (26.0% vs 47.2%, p = 0.027).P16+ OSCCs of smokers show clinical, imaging and prognostic differences with P16+ OSCCs of non-smokers.
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Affiliation(s)
- Jean-Michel Trinh
- Institut de Cancérologie de Lorraine, 6 Avenue de Bourgogne, 54519, Vandœuvre-lès-Nancy, France.
| | - Jacques Thomas
- Institut de Cancérologie de Lorraine, 6 Avenue de Bourgogne, 54519, Vandœuvre-lès-Nancy, France
| | - Julia Salleron
- Institut de Cancérologie de Lorraine, 6 Avenue de Bourgogne, 54519, Vandœuvre-lès-Nancy, France
| | - Philippe Henrot
- Institut de Cancérologie de Lorraine, 6 Avenue de Bourgogne, 54519, Vandœuvre-lès-Nancy, France
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EGFR Protein Expression Relates with Tumor Histology, Methylation Status of EGFR and HPV16 E6 Viral Load in Oropharyngeal Carcinoma. Head Neck Pathol 2021; 15:743-756. [PMID: 33428063 PMCID: PMC8385027 DOI: 10.1007/s12105-020-01261-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/21/2020] [Accepted: 11/24/2020] [Indexed: 10/22/2022]
Abstract
The epidermal growth factor receptor (EGFR) pathway is important in tumorigenesis of oropharyngeal carcinoma (OPC). However, the molecular mechanisms contributing to EGFR expression in OPC are not well-known. To detect relating factors and clinicopathological impact of EGFR protein expression in OPC, gene amplification/loss, point mutations including synonymous mutations, and promoter methylation of EGFR, and the viral genome load of human papillomavirus type 16 (HPV16)-E5, -E6, and -E7, after extracting HPV16-related OPCs with qPCR of HPV16-E6 and E7, were investigated in 74 OPC surgical cases, including 52 HPV-related (HPV-OPC) and 22 HPV-unrelated (nHPV-OPC). Immunohistochemical (IHC) data of EGFR expression (high, weak, and negative), validated by the qPCR of EGFR mRNA, were compared with molecular, viral, and clinicopathological data of patients. All nHPV-OPC cases were EGFR-IHC-high, whereas 21.2%, 65.4%, and 13.5% of HPV-OPC cases showed EGFR-IHC-high, -weak, -negative (p < 0.01), respectively. In HPV-OPC cases, EGFR-IHC-weak/negative status was related to promoter methylation of EGFR (p = 0.009), but not with gene amplification/loss or the point mutation of EGFR and was more often seen in HPV16-OPC cases (p = 0.049). Among HPV16-OPC cases, EGFR-IHC-weak/negative was related to high E6 expression. EGFR protein-loss was related to the tumor histology of non-keratinizing squamous cell carcinoma (SCC) (p = 0.035) but not with patient prognosis. In conclusion, decreased EGFR protein expression was more frequent in HPV-OPC than in nHPV-OPC and was related to EGFR methylation, infection of HPV16, and the viral genome load of HPV16-E6. Clinicopathologically, it was related to the tumor histology of non-keratinizing SCC.
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Suresh K, Shah PV, Coates S, Alexiev BA, Samant S. In situ hybridization for high risk HPV E6/E7 mRNA in oropharyngeal squamous cell carcinoma. Am J Otolaryngol 2021; 42:102782. [PMID: 33171410 DOI: 10.1016/j.amjoto.2020.102782] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Accepted: 10/17/2020] [Indexed: 02/02/2023]
Abstract
OBJECTIVES To report a single institution's experience using human papillomavirus (HPV) E6/E7 mRNA in-situ hybridization (mRNA ISH) for HPV detection in oropharyngeal squamous cell carcinoma (OPSCC). To review the literature on HPV detection methods. STUDY DESIGN Retrospective chart review, literature review. SETTING Tertiary care academic hospital. SUBJECTS AND METHODS We conducted a retrospective chart review of 122 OPSCC biopsy specimens. mRNA ISH was performed on formalin-fixed paraffin-embedded (FFPE) tissue with a pool of 18 high risk HPV probes using an automated stainer; p16 immunohistochemistry (IHC) was also performed. We conducted a literature review on HPV detection methods including p16 IHC, mRNA ISH, DNA ISH, and PCR. RESULTS In our cohort, mRNA ISH had a sensitivity and specificity of 100% and 100% with reference to p16 (100% concordance). 2-year OS was 87.5% vs. 94.5% for p16/HPV-negative vs. positive patients. 2-year DFS was 60.0% vs. 84.2%. On literature review, mRNA ISH demonstrated consistently high sensitivity and specificity ranging from 88-98% and 90-100% respectively. In comparison, the specificity of p16 was 85-95%. CONCLUSIONS Our report supports the use of mRNA ISH for HPV detection in OPSCC and validates its feasibility using automated tissue staining methods on FFPE tissue. Our findings and literature review support that mRNA ISH may have superior specificity and be easier to interpret than p16. Further study on the prognostic value and cost-effectiveness of mRNA ISH is warranted and may establish this HPV detection method as the "gold standard."
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Affiliation(s)
- Krish Suresh
- Department of Otolaryngology - Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
| | - Parth V Shah
- Department of Otolaryngology - Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
| | - Sydney Coates
- Department of Otolaryngology - Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
| | - Borislav A Alexiev
- Department of Pathology, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America
| | - Sandeep Samant
- Department of Otolaryngology - Head and Neck Surgery, Northwestern University Feinberg School of Medicine, Chicago, IL, United States of America.
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Neves‐Silva R, Almeida LY, Silveira HA, Colturato CBN, Duarte A, Ferrisse TM, Silva EV, Vanzolin BF, Bufalino A, Ribeiro‐Silva A, León JE. SMARCB1 (INI‐1) and NUT immunoexpression in a large series of head and neck carcinomas in a Brazilian reference center. Head Neck 2019; 42:374-384. [DOI: 10.1002/hed.26008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Revised: 10/17/2019] [Accepted: 10/30/2019] [Indexed: 12/21/2022] Open
Affiliation(s)
- Rodrigo Neves‐Silva
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
| | - Luciana Y. Almeida
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental SchoolSão Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Heitor A. Silveira
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental SchoolSão Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Carla B. N. Colturato
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
| | - Andressa Duarte
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
| | - Tulio M. Ferrisse
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental SchoolSão Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Evânio V. Silva
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental SchoolSão Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Bárbara F. Vanzolin
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
| | - Andreia Bufalino
- Oral Medicine, Department of Diagnosis and Surgery, Araraquara Dental SchoolSão Paulo State University (UNESP) Araraquara São Paulo Brazil
| | - Alfredo Ribeiro‐Silva
- Department of Pathology and Forensic Medicine, Ribeirão Preto Medical School (FMRP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
| | - Jorge E. León
- Oral Pathology, Department of Stomatology, Public Oral Health, and Forensic Dentistry, Ribeirão Preto Dental School (FORP/USP)University of São Paulo Ribeirão Preto São Paulo Brazil
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Saleem MW, Baig FA, Hadi NI. A novel comparison of Epstein-Barr virus with broad histological spectrum of oral squamous cell carcinoma. Pak J Med Sci 2019; 35:1192-1198. [PMID: 31488977 PMCID: PMC6717453 DOI: 10.12669/pjms.35.5.899] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objectives: To evaluate the immunohistochemical expression of Epstein-Barr virus (EBV) in broad spectrum histological subtypes of oral squamous cell carcinoma (OSCC) and to determine the relationship of EBV with clinicopathological parameters of OSCC. Methods: This cross-sectional study included 150 clinically diagnosed OSCC cases from the outpatient of Ziauddin University Hospital from March, 2017 to October, 2018. These were confirmed on histological examination and categorized into conventional squamous cell carcinoma (SCC) and rare variants. Conventional SCC was subcategorized into keratinizing (KSCC), non-keratinizing (NKSCC), and hybrid SCC (HSCC). EBV status was compared among various histological tumor entities and clinicopathological characteristics of OSCC using immunohistochemistry. Chi-square test was used to determine the association of each histological subtype with EBV status with P-value <0.05 considered as statistically significant. Results: Conventional tumor was the most frequent squamous cell carcinoma (n=126; 84%). A significant statistical link of EBV infection was observed with rare histological tumors exhibiting acantholysis (P=0.01), as well as tumors involving buccal mucosa (P=0.03), and habitual smokers (P=0.001). Conclusions: In this study, acantholytic tumor, a rare histological subtype of OSCC, tended to be EBV related. Moreover, OSCC cases bearing EBV infection were more likely smokers favoring buccal mucosa as primary anatomical site for oral cancer.
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Affiliation(s)
- Muhammad Wasif Saleem
- Muhammad Wasif Saleem (BDS, MPhil Trainee), Department of Pathology, Ziauddin University, 4/B, Sharah-e-Ghalib, Clifton Karachi, Pakistan
| | - Faraz Ahmed Baig
- Faraz Ahmed Baig (MBBS, MPhil, PhD Fellow), Department of Pathology, Ziauddin University, 4/B, Sharah-e-Ghalib, Clifton Karachi, Pakistan
| | - Naila Irum Hadi
- Prof. Dr. Naila Irum Hadi (MBBS, MPhil, PhD), Department of Pathology, Islamabad Medical & Dental College, Satra Meel, Main Murree Road, Bhara Kahu, Islamabad, Pakistan
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Lewis JS, Beadle B, Bishop JA, Chernock RD, Colasacco C, Lacchetti C, Moncur JT, Rocco JW, Schwartz MR, Seethala RR, Thomas NE, Westra WH, Faquin WC. Human Papillomavirus Testing in Head and Neck Carcinomas: Guideline From the College of American Pathologists. Arch Pathol Lab Med 2018; 142:559-597. [PMID: 29251996 DOI: 10.5858/arpa.2017-0286-cp] [Citation(s) in RCA: 329] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Context Human papillomavirus (HPV) is a major cause of oropharyngeal squamous cell carcinomas, and HPV (and/or surrogate marker p16) status has emerged as a prognostic marker that significantly impacts clinical management. There is no current consensus on when to test oropharyngeal squamous cell carcinomas for HPV/p16 or on which tests to choose. Objective To develop evidence-based recommendations for the testing, application, interpretation, and reporting of HPV and surrogate marker tests in head and neck carcinomas. Design The College of American Pathologists convened a panel of experts in head and neck and molecular pathology, as well as surgical, medical, and radiation oncology, to develop recommendations. A systematic review of the literature was conducted to address 6 key questions. Final recommendations were derived from strength of evidence, open comment period feedback, and expert panel consensus. Results The major recommendations include (1) testing newly diagnosed oropharyngeal squamous cell carcinoma patients for high-risk HPV, either from the primary tumor or from cervical nodal metastases, using p16 immunohistochemistry with a 70% nuclear and cytoplasmic staining cutoff, and (2) not routinely testing nonsquamous oropharyngeal carcinomas or nonoropharyngeal carcinomas for HPV. Pathologists are to report tumors as HPV positive or p16 positive. Guidelines are provided for testing cytologic samples and handling of locoregional and distant recurrence specimens. Conclusions Based on the systematic review and on expert panel consensus, high-risk HPV testing is recommended for all new oropharyngeal squamous cell carcinoma patients, but not routinely recommended for other head and neck carcinomas.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | - William C Faquin
- From the Department of Pathology, Microbiology, and Immunology, Vanderbilt University Medical Center, Nashville, Tennessee (Dr Lewis); the Department of Radiation Oncology, Stanford University Medical Center, Palo Alto, California (Dr Beadle); the Department of Pathology, Johns Hopkins Hospital, Baltimore, Maryland (Drs Bishop and Westra); the Department of Pathology and Immunology, Washington University School of Medicine, Saint Louis, Missouri (Dr Chernock); Surveys, the College of American Pathologists, Northfield, Illinois (Mss Colasacco and Thomas); Policy and Advocacy, American Society of Clinical Oncology, Alexandria, Virginia (Ms Lacchetti); the Department of Pathology, Walter Reed National Military Medical Center, Bethesda, Maryland (Dr Moncur); the Department of Otolaryngology-Head and Neck Surgery, Ohio State University Wexler Medical Center, Columbus (Dr Rocco); the Department of Pathology and Genomic Medicine, Houston Methodist Hospital, Houston, Texas (Dr Schwartz); the Department of Pathology, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania (Dr Seethala); and the Department of Pathology, Massachusetts General Hospital, Boston (Dr Faquin)
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Haeggblom L, Ramqvist T, Tommasino M, Dalianis T, Näsman A. Time to change perspectives on HPV in oropharyngeal cancer. A systematic review of HPV prevalence per oropharyngeal sub-site the last 3 years. PAPILLOMAVIRUS RESEARCH (AMSTERDAM, NETHERLANDS) 2017; 4:1-11. [PMID: 29179862 PMCID: PMC5883233 DOI: 10.1016/j.pvr.2017.05.002] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/07/2017] [Revised: 05/12/2017] [Accepted: 05/18/2017] [Indexed: 02/08/2023]
Abstract
OBJECTIVES Human papillomavirus (HPV) as a risk factor in oropharyngeal squamous cell carcinoma (OPSCC) is well established. However, accumulating data imply that the OPSCC concept is too unspecific with regard to HPV prevalence and clinical importance. To further study the role of HPV in OPSCC by sub-site, a systematic review and meta-analysis was performed. MATERIAL AND METHOD PubMed was searched and all studies reporting HPV data (p16/HPV DNA/RNA) in both "lymphoepithelial associated" (i.e. tonsillar and base of tongue cancer; TSCC and BOTSCC respectively) and "non-lymphoepithelial" ("other" OPSCC) OPSCC were included. Pooled odds ratios by HPV detection method were analysed using a random effects model. RESULTS In total, 58 unique patient cohorts were identified. Total HPV prevalence in TSCC/BOTSCC was 56%, 95%CI: 55-57% (59%, 95%CI: 58-60% for TSCC only) as compared to 19%, 95%CI: 17-20%, in "other" OPSCC. Significant association of HPV to TSCC/BOTSCC vs. "other" OPSCC was observed no matter HPV detection method used, but statistical homogeneity was only observed when studies using algorithm based HPV detection were pooled. CONCLUSION HPV prevalence differs markedly between OPSCC sub-sites and while the role of HPV in TSCC/BOTSCC is strong, the role in "other" OPSCC is more uncertain and needs further evaluation.
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Affiliation(s)
- Linnea Haeggblom
- Dept. of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Torbjörn Ramqvist
- Dept. of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden
| | | | - Tina Dalianis
- Dept. of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden
| | - Anders Näsman
- Dept. of Oncology-Pathology, Karolinska Institutet, 171 76 Stockholm, Sweden; Dept. of Clinical Pathology, Karolinska University Hospital, 171 76 Stockholm, Sweden.
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Zedan W, Mourad MI, El-Aziz SMA, Salamaa NM, Shalaby AA. Cytogenetic significance of chromosome 17 aberrations and P53 gene mutations as prognostic markers in oral squamous cell carcinoma. Diagn Pathol 2015; 10:2. [PMID: 25881131 PMCID: PMC4340679 DOI: 10.1186/s13000-015-0232-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2014] [Accepted: 12/18/2014] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Cytogenetic analysis has detected an accumulation of genetic lesions in oral cancers. Numerical changes in chromosome 17 might be associated with an up-regulation of p53 gene, and could contribute to critical events in carcinogenesis. The aim of this study was to reveal possible correlations between the numerical aberrations of chromosome 17, deletion or amplification of the P53 gene and histological grading in patients with oral squamous cell carcinoma (OSCC). METHODS This study was performed retrospectively on anonymous forty paraffin embedded specimens diagnosed with a primary OSCC. Sections were prepared for p53 immunohistochemical staining and FISH technique evaluation. RESULTS All studied cases showed a positive nuclear staining with different indices for the p53 protein. Furthermore, statistical analysis showed a significant difference between all histological types of OSCC. In term of P53 immunoreactivity well differentiated OSCC showed the highest, whereas poorly differentiated showed weakest. Regarding chromosome 17 aberrations and p53 gene mutations, Spearman correlation test revealed a statistical significant positive correlation between chromosome 17 abnormalities and p53 gene mutations as well as with the immunohistochemical expression of p53 proteins. Moreover, the positive association between p53 gene mutations and the expression of p53 protein was statistically significant. CONCLUSION In the light of the previous findings, we concluded that numerical aberrations of chromosome 17 and p53 gene mutations as well as expression of p53 protein have enormous influence on various cellular processes including differentiation and carcinogenesis. Such knowledge provides an easy and simplified approach to prognosis predilection for OSCC. VIRTUAL SLIDES The virtual slide(s) for this article can be found here: http://www.diagnosticpathology.diagnomx.eu/vs/13000_2015_232 .
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Affiliation(s)
- Walid Zedan
- Department of Oral and maxillofacial Pathology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
| | - Mohamed I Mourad
- Department of Oral and maxillofacial Pathology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
| | - Sherin M Abd El-Aziz
- Department of Clinical Pathology-Hematology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
| | - Nagla M Salamaa
- Department of Oral and maxillofacial Pathology, Faculty of Dentistry, Mansoura University, Mansoura, Egypt.
| | - Asem A Shalaby
- Department of General Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt.
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