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Cagle P, Qi Q, Niture S, Kumar D. KCNQ1OT1: An Oncogenic Long Noncoding RNA. Biomolecules 2021; 11:1602. [PMID: 34827600 PMCID: PMC8615887 DOI: 10.3390/biom11111602] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/24/2022] Open
Abstract
Long noncoding RNAs (lncRNAs) are transcripts greater than 200 nucleotides that do not code for proteins but regulate gene expression. Recent studies indicate that lncRNAs are involved in the modulation of biological functions in human disease. KCNQ1 Opposite Strand/Antisense Transcript 1 (KCNQ1OT1) encodes a lncRNA from the opposite strand of KCNQ1 in the CDKN1C/KCNQ1OT1 cluster that is reported to play a vital role in the development and progression of cancer. KCNQ1OT1 regulates cancer cell proliferation, cell cycle, migration and invasion, metastasis, glucose metabolism, and immune evasion. The aberrant expression of KCNQ1OT1 in cancer patients is associated with poor prognosis and decreased survival. This review summarizes recent literature related to the biological functions and molecular mechanisms of KCNQ1OT1 in various human cancers, including colorectal, bladder, breast, oral, melanoma, osteosarcoma, lung, glioma, ovarian, liver, acute myeloid leukemia, prostate, and gastric. We also discuss the role of KCNQ1OT1 as a promising diagnostic biomarker and a novel therapeutic target in human cancers.
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Affiliation(s)
| | | | | | - Deepak Kumar
- Julius L. Chambers Biomedical Biotechnology Research Institute, North Carolina Central University, Durham, NC 27707, USA; (P.C.); (Q.Q.); (S.N.)
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Mourad MA, Higazi MM. MRI prognostic factors of tongue cancer: potential predictors of cervical lymph nodes metastases. Radiol Oncol 2019; 53:49-56. [PMID: 30840589 PMCID: PMC6411025 DOI: 10.2478/raon-2019-0012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2018] [Accepted: 01/15/2019] [Indexed: 11/22/2022] Open
Abstract
Background This study aimed to evaluate the efficacy of three MR imaging parameters, which are tumour thickness, para-lingual distance and apparent diffusion coefficient (ADC) value for prediction of cervical lymph nodes metastasis in cancer tongue patients. Patients and methods Fifty patients with proved cancer tongue by histopathological examination underwent MRI examination. T1 and T2- weighted MRI, diffusion-weighted images and post-contrast T1 fat suppression sequences were used. Results The patients were classified according to lymph nodes involvement as seen by MRI into two groups. Significant differences between positive and negative nodes groups were observed regarding tumour thickness and para-lingual distance (p-values = 0.008 and 0.003 respectively). ROC curve analyses revealed cut-off values >13.8 mm and ≤ 3.3 mm for tumour thickness and para-lingual distance respectively for prediction of nodes involvement. No significant differences between patients with and without cervical lymph nodes metastasis were found regarding corresponding ADC value of the tumour (p-value = 0.518). Conclusions Para-lingual distance and tumour thickness are factors that could influence pre-operative judgment and prognosis of tongue cancer patients. ADC value of the tumour itself seem not to be a reliable index of cancer progression to regional lymph nodes.
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Affiliation(s)
| | - Mahmoud M. Higazi
- Department of Radiology, Minia University, MiniaEgypt
- Mahmoud M. Higazi, M.D., Lecturer of Radiology, Minia University Egypt
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Akkina SR, Kim RY, Stucken CL, Pynnonen MA, Bradford CR. Is There a Difference in Staging and Treatment of Head and Neck Squamous Cell Tumors Between Tertiary Care and Community-Based Institutions? Laryngoscope Investig Otolaryngol 2018; 3:290-295. [PMID: 30186960 PMCID: PMC6119783 DOI: 10.1002/lio2.178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2017] [Revised: 05/05/2018] [Accepted: 05/18/2018] [Indexed: 11/13/2022] Open
Abstract
Objective To characterize the differences in the staging and treatment of patients with head and neck squamous cell carcinoma between a tertiary care center and community‐based practices. Methods This study is a retrospective chart review of 943 adult patients with head and neck squamous cell cancer presenting to a tertiary care center between 2008 and 2014 as part of the University of Michigan Head and Neck Cancer Specialized Program of Research Excellence (UM HN‐SPORE) database. Demographic information, diagnostic testing, staging information, and treatment recommendations were recorded. Results Of 943 patients reviewed, 159 had documentation of tumor stage that was assigned by the community‐based practice. Of these, 53% had a tumor staging change made at the tertiary care center, with 43% of patients upstaged and 10% of patients downstaged. Fifty‐one percent received different treatment than had previously been offered at the community‐based practice, although only 31% of these patients had a change in tumor staging. Conclusion Over half of patients with head and neck squamous cell carcinoma who are evaluated at a tertiary care center after the initial evaluation at a community‐based practice have their tumors staged differently, with the majority upstaged. A significant number of these patients also received different treatment than was initially offered at the referring practice. Future studies are required to determine whether these differences have an effect on tumor recurrence and patient survival rates. Level of Evidence 2c (Outcomes Research).
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Affiliation(s)
- Sarah R Akkina
- University of Michigan Medical School Ann Arbor Michigan.,Department of Otolaryngology-Head and Neck Surgery University of Washington Seattle Washington
| | - Roderick Y Kim
- University of Michigan Medical School Ann Arbor Michigan.,Department of Surgery University of Michigan Health System Ann Arbor Michigan
| | - Chaz L Stucken
- Department of Otolaryngology-Head and Neck Surgery University of Michigan Health System Ann Arbor Michigan
| | - Melissa A Pynnonen
- Department of Otolaryngology-Head and Neck Surgery University of Michigan Health System Ann Arbor Michigan
| | - Carol R Bradford
- Department of Otolaryngology-Head and Neck Surgery University of Michigan Health System Ann Arbor Michigan
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Rewadkar MS, Mahobia VK. Impact of induction chemotherapy to concurrent chemoirradiation over radiotherapy alone in advanced oral cavity. Indian J Cancer 2018; 54:16-19. [PMID: 29199654 DOI: 10.4103/ijc.ijc_166_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND Oral and oropharyngeal carcinomas representing about 90% of all oral malignancies are the sixth most common cancers worldwide. Basic modalities of cancer treatment are surgery, radiotherapy, and chemotherapy (CT) either alone or in combination. For squamous cell carcinoma (SCC) patients, induction CT followed by radiotherapy and concurrent CT are effective methods for improving response rates. MATERIALS AND METHODS Fifty patients with advance stage oral cavity cancer with performance status >60% on Karnofsky performance scale and having no prior exposure to CT, radiotherapy, and surgery were included in the study. CT including bleomycin, methotrexate, and cisplatin was given on day 1 and repeated at an interval of 21 days. After the completion of three cycles, two groups (n = 25 each) were formed. One group was treated with radiotherapy alone and other group of patients treated with radiotherapy and concurrent cisplatin infusion. The patient toxicities and response were evaluated. RESULTS After completion of induction CT, both the groups responded with almost similar result. Nausea, vomiting, mucositis, and skin reactions during radiotherapy were observed in both groups but comparatively higher in Group "B." In Group B, 84% (vs. 60% in Group A) of patients showed complete response (CR) after completion of treatment, and out of 13 patients who responded partially to induction CT, 9 patients showed CR after concurrent chemoradiotherapy. CONCLUSION This study showed the superiority of induction followed by concurrent chemoradiotherapy over induction plus radiotherapy alone in the treatment of advanced oral cavity neck SCC.
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Affiliation(s)
- M S Rewadkar
- Department of Radiotherapy, Cama and Albless Hospital, Mumbai, India
| | - V K Mahobia
- Department of Radiation Oncology, Government Medical College and Hospital, Nagpur, Maharashtra, India
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Jamieson L, Garvey G, Hedges J, Mitchell A, Dunbar T, Leane C, Hill I, Warren K, Brown A, Ju X, Roder D, Logan R, Johnson N, Smith M, Antonsson A, Canfell K. Human Papillomavirus and Oropharyngeal Cancer Among Indigenous Australians: Protocol for a Prevalence Study of Oral-Related Human Papillomavirus and Cost-Effectiveness of Prevention. JMIR Res Protoc 2018; 7:e10503. [PMID: 29884604 PMCID: PMC6015268 DOI: 10.2196/10503] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2018] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 01/08/2023] Open
Abstract
Background Oropharyngeal cancer is an important, understudied cancer affecting Aboriginal and Torres Strait Islander Australians. The human papillomavirus (HPV) is a significant risk factor for oropharyngeal cancer. Current generation HPV vaccines are effective against the 2 most common types of high-risk HPVs in cancer (hrHPVs 16/18). Objectives This study aims (1) to yield population estimates of oncogenic genotypes of HPV in the mouth and oropharynx of defined Aboriginal and Torres Strait Islander populations; (2) to estimate the proportion of oropharyngeal cancer attributable to HPV among these Australian citizens; (3) to estimate the impact of HPV vaccination as currently implemented on rates of oropharyngeal cancer among Aboriginal and Torres Strait Islander Australians; and (4) taking into account impact on oropharyngeal as well as cervical cancer, to evaluate efficacy and cost-effectiveness of targeted extended HPV vaccination to older ages, among our study population. Methods Our study design and operation is straightforward, with minimal impost on participants. It involves testing for carriage of hrHPV in the mouth and oropharynx among 1000 Aboriginal South Australians by simple saliva collection and with follow-up at 12 and 24 months, collection of sexual history at baseline, collection of information for estimating health state (quality-of-life) utilities at baseline, genotyping of viruses, predictive outcome and cost-effectiveness modeling, data interpretation and development of vaccination, and follow-up management strategies driven by the Aboriginal community. Results Participant recruitment for this study commenced in February 2018 and enrollment is ongoing. The first results are expected to be submitted for publication in 2019. Conclusions The project will have a number of important outcomes. Synthesis of evidence will enable generation of estimates of the burden of oropharyngeal cancer among Aboriginal and Torres Strait Islander Australians and indicate the likely effectiveness and cost-effectiveness of prevention. This will be important for health services planning, and for Aboriginal health worker and patient education. The results will also point to important areas where research efforts should be focused to improve outcomes in Aboriginal and Torres Strait Islander Australians with oropharyngeal cancer. There will be a strong focus on community engagement and accounting for the preferences of individuals and the community in control of HPV-related cancers. The project has international relevance in that it will be the first to systematically evaluate prevention of both cervical and oropharyngeal cancer in a high-risk Indigenous population taking into account all population, testing, and surveillance options. Registered Report Identifier RR1-10.2196/10503
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Affiliation(s)
- Lisa Jamieson
- Australian Research Centre for Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide, Australia
| | - Gail Garvey
- Menzies School of Health Research, Charles Darwin University, Darwin, Australia
| | - Joanne Hedges
- Australian Research Centre for Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide, Australia
| | - Amanda Mitchell
- Aboriginal Health Council of South Australia, Adelaide, Australia
| | - Terry Dunbar
- Yaitya Purruna Indigenous Health Unit, University of Adelaide, Adelaide, Australia
| | - Cathy Leane
- Aboriginal Health Division Women's and Children's Health Network, Adelaide, Australia
| | - Isaac Hill
- Aboriginal Health Council of South Australia, Adelaide, Australia
| | - Kate Warren
- Pika Wiya Health Service Inc, Port Augusta, Australia
| | - Alex Brown
- Wardliparingga Aboriginal Research Unit, South Australian Health & Medical Research Institute, Adelaide, Australia
| | - Xiangqun Ju
- Australian Research Centre for Population Oral Health, Adelaide Dental School, University of Adelaide, Adelaide, Australia
| | - David Roder
- School of Health Sciences, Univesity of South Australia, Adelaide, Australia
| | - Richard Logan
- Adelaide Dental School, University of Adelaide, Adelaide, Australia
| | - Newell Johnson
- Menzies Health Institute, Griffith University, Gold Coast, Australia
| | - Megan Smith
- Cancer Council of New South Wales, Sydney, Australia
| | - Annika Antonsson
- QIMR Berghofer Medical Research Institute, QIMR Berghofer Medical Research Institute, Brisbane, Australia
| | - Karen Canfell
- Cancer Council of New South Wales, Sydney, Australia
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Lobo L, Costas-Rodríguez M, de Vicente JC, Pereiro R, Vanhaecke F, Sanz-Medel A. Elemental and isotopic analysis of oral squamous cell carcinoma tissues using sector-field and multi-collector ICP-mass spectrometry. Talanta 2017; 165:92-97. [DOI: 10.1016/j.talanta.2016.12.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2016] [Revised: 11/30/2016] [Accepted: 12/04/2016] [Indexed: 01/06/2023]
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7
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Bouza M, Gonzalez-Soto J, Pereiro R, de Vicente JC, Sanz-Medel A. Exhaled breath and oral cavity VOCs as potential biomarkers in oral cancer patients. J Breath Res 2017; 11:016015. [DOI: 10.1088/1752-7163/aa5e76] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
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Multiple simultaneous primary oral squamous cell carcinomas: a previously unreported presentation. Br J Oral Maxillofac Surg 2015; 53:652-4. [PMID: 26003797 DOI: 10.1016/j.bjoms.2015.04.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Accepted: 04/02/2015] [Indexed: 11/21/2022]
Abstract
The simultaneous occurrence of a second oral squamous cell carcinoma, or in rare cases more, is well known, but to our knowledge, the presentation of 5 primary oral cancers at once has not previously been reported. We discuss this exceptional case and offer a possible explanation for its cause.
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Wang F, Yang JL, Yu KK, Xu M, Xu YZ, Chen L, Lu YM, Fang HS, Wang XY, Hu ZQ, Li FF, Kan L, Luo J, Wang SY. Activation of the NF-κB pathway as a mechanism of alcohol enhanced progression and metastasis of human hepatocellular carcinoma. Mol Cancer 2015; 14:10. [PMID: 25622857 PMCID: PMC4320626 DOI: 10.1186/s12943-014-0274-0] [Citation(s) in RCA: 74] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Accepted: 12/22/2014] [Indexed: 12/13/2022] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC), the most common form of primary liver cancer, is the third leading cause of cancer-related death in human. Alcohol is a known risk factor for HCC. However it is still unclear whether and how alcohol enhances the progression and metastasis of existing HCC. METHODS AND RESULTS We first retrospectively investigated 52 HCC patients (24 alcohol-drinkers and 28 non-drinkers), and found a positive correlation between alcohol consumption and advanced Tumor-Node-Metastasis (TNM) stages, higher vessel invasion and poorer prognosis. In vitro and in vivo experiments further indicated that alcohol promoted the progression and migration/invasion of HCC. Specifically, in a 3-D tumor/endothelial co-culture system, we found that alcohol enhanced the migration/invasion of HepG2 cells and increased tumor angiogenesis. Consistently, higher expression of VEGF, MCP-1 and NF-κB was observed in HCC tissues of alcohol-drinkers. Alcohol induced the accumulation of intracellular reactive oxygen species (ROS) and the activation of NF-κB signaling in HepG2 cells. Conversely, blockage of alcohol-mediated ROS accumulation and NF-κB signaling inhibited alcohol-induced expression of VEGF and MCP-1, the tumor growth, angiogenesis and metastasis. CONCLUSION This study suggested that chronic moderate alcohol consumption may promote the progression and metastasis of HCC; the oncogenic effect may be at least partially mediated by the ROS accumulation and NF-ĸB-dependent VEGF and MCP-1 up-regulation.
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Affiliation(s)
- Fei Wang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China. .,Department of Burns, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, P.R. China.
| | - Jin-Lian Yang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Ke-ke Yu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Mei Xu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China. .,Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky, 40536, USA.
| | - You-zhi Xu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Li Chen
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Yan-min Lu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Hao-shu Fang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Xin-yi Wang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China. .,Department of Clinical Medicine, Anhui Medical University, Hefei, Anhui, 230032, P.R. China.
| | - Zhong-qian Hu
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Fei-fei Li
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Lixin Kan
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
| | - Jia Luo
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China. .,Department of Pharmacology and Nutritional Sciences, University of Kentucky College of Medicine, Lexington, Kentucky, 40536, USA.
| | - Si-Ying Wang
- Department of Pathophysiology, School of Basic Medical Science, Anhui Medical University, 81 MeiShan Road, Hefei, Anhui, 230032, P.R. China.
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10
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Frydrych AM, Slack-Smith LM, Parsons R, Threlfall T. Oral cavity squamous cell carcinoma - characteristics and survival in aboriginal and non-aboriginal Western australians. Open Dent J 2014; 8:168-74. [PMID: 25328552 PMCID: PMC4200744 DOI: 10.2174/1874210601408010168] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 08/15/2014] [Accepted: 08/24/2014] [Indexed: 11/24/2022] Open
Abstract
Background: Squamous cell carcinoma (SCC) is the most common type of malignancy affecting the oral cavity. While exposures to main risk factors for oral SCC such as smoking and alcohol use are higher amongst the Aboriginal people, little is known about oral cancer in this population. This study aimed to describe characteristics and survival of oral SCC in Aboriginal and non-Aboriginal Western Australians. Methods: All primary oral SCC cases reported to the Western Australian Cancer Registry (WACR) between 1990 and 1999 were analysed with respect to person characteristics including: date of birth, sex and indigenous status; and disease characteristics including: date of biopsy, disease stage and site as well as date of recurrence and date of death. Exclusion criteria included diagnosis not based on incisional or excisional biopsy, diagnosis other than oral SCC or a history of another malignant neoplasm. Results: Aboriginal individuals were more likely to reside in rural areas. No statistically significant differences in oral SCC characteristics and survival were noted between Aboriginal and non-Aboriginal Western Australians. Conclusion: This study provides new information on person and disease characteristics of Aboriginal Western Australians diagnosed with oral SCC.
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Affiliation(s)
- A M Frydrych
- School of Dentistry M512, The University of Western Australia, Perth, Western Australia
| | - L M Slack-Smith
- School of Dentistry M512, The University of Western Australia, Perth, Western Australia
| | - R Parsons
- School of Occupational Therapy and Social Work, Curtin University, Perth, Western Australia
| | - T Threlfall
- Western Australian Cancer Registry, Department of Health (WA) Perth, Western Australia
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11
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Qaisi M, Vorrasi J, Lubek J, Ord R. Multiple primary squamous cell carcinomas of the oral cavity. J Oral Maxillofac Surg 2014; 72:1511-6. [PMID: 24813779 DOI: 10.1016/j.joms.2014.03.012] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2013] [Revised: 03/05/2014] [Accepted: 03/19/2014] [Indexed: 10/25/2022]
Abstract
PURPOSE There is a subset of patients who develop multiple primary squamous cell carcinomas (SCCs) of the oral cavity. The aim of this study was to better characterize this group of patients and determine whether there are any associated risk factors. MATERIALS AND METHODS This is a retrospective review of all patients treated for oral SCCs at the University of Maryland Department of Oral and Maxillofacial Surgery from November 1989 to February 2013. The inclusion criteria were patients who developed at least 3 primary oral cancers. Lesions were considered separate primaries if they involved different anatomic regions within the oral cavity and were more than 2 cm apart or if they occurred more than 5 years apart. RESULTS Of 1,478 patients treated during this time frame, 20 met the inclusion criteria. There were 14 women and 6 men (female-to-male ratio, 2.3:1). Nineteen were Caucasian and 1 was of Indian ethnicity. The average number of primaries per patient was 3.9 (range, 3 to 6 primaries). The mean age at first diagnosis was 63.3 years (44 to 86 yr). The mean interval between the different primaries was 32 months (0 to 228 months). The most common site involved was the gingiva (45% of cases), followed by the tongue, buccal mucosa, retromolar fossa, and soft or hard palate. The mean follow-up was 118 months (22 to 342 months). Eleven patients developed nodal disease. Of those 11 patients, 9 died of the disease (<20% survival). The average time to neck involvement was 66.4 months. The average time from last neck involvement to death was 11.5 months. More than half the patients were nonsmokers or had quit more than 10 years before the first diagnosis. All patients quit smoking during the course of their treatment yet continued to develop multiple primaries. Three patients had proliferative verrucous leukoplakia (PVL), and 4 patients had biopsy-proved lichen planus. CONCLUSION The incidence of multiple primary SCCs within the oral cavity appears to more commonly involve Caucasian women without risk factors, although lichen planus and PVL might play a role. The gingiva appears to be the most commonly involved primary site, and subsequent primaries tend to be restricted to the oral cavity. Close observation and early expectant treatment appear to improve prognosis and survival in these patients. Cervical nodal metastases adversely affected survival (P = .02) as did the development of more than 4 primary carcinomas (P = .04).
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Affiliation(s)
- Mohammed Qaisi
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Adjunct Assistant Professor, Department of Otolaryngology, University of Mississippi Medical Center, Jackson, MS; previously Fellow in Oral-Head and Neck Oncology, Department of Oral and Maxillofacial Surgery, University of Maryland, Baltimore, MD.
| | - John Vorrasi
- Resident, Department of Oral and Maxillofacial Surgery, University of Maryland, Baltimore, MD
| | - Joshua Lubek
- Assistant Professor and Fellowship Director, Department of Oral and Maxillofacial Surgery, University of Maryland, Baltimore, MD
| | - Robert Ord
- Professor and Chair, Department of Oral and Maxillofacial Surgery, University of Maryland, Baltimore, MD
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12
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XPD Lys751Gln polymorphism is not associated with oral cancer risk: evidence from a meta-analysis. Tumour Biol 2014; 35:6335-41. [DOI: 10.1007/s13277-014-1835-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2013] [Accepted: 03/06/2014] [Indexed: 12/26/2022] Open
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13
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Kong CS, Cao H, Kwok S, Nguyen CM, Jordan RC, Beaudry VG, Attardi LD, Le QT. Loss of the p53/p63 target PERP is an early event in oral carcinogenesis and correlates with higher rate of local relapse. Oral Surg Oral Med Oral Pathol Oral Radiol 2013; 115:95-103. [PMID: 23217540 DOI: 10.1016/j.oooo.2012.10.017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2012] [Revised: 10/19/2012] [Accepted: 10/28/2012] [Indexed: 01/31/2023]
Abstract
BACKGROUND PERP is a p53/p63-regulated gene encoding a desmosomal protein that plays a critical role in cell-cell adhesion and tumor suppression. STUDY DESIGN We evaluated PERP expression in different grades of oral dysplasia (34 cases) and at different stages of invasive squamous cell carcinoma (SCC), and correlated the latter with clinical outcome. A tissue microarray consisting of nondysplastic mucosa, carcinoma in situ, SCC, and nodal metastases from 33 patients with human papilloma virus-negative SCC was stained for PERP and E-cadherin. RESULTS Complete loss of PERP expression was associated with worse local control in patients with SCC. The 5-year local control rate was 91% for patients with partial PERP loss versus 31% for those with complete loss (P = .01). CONCLUSIONS This is the first study to show that loss of PERP expression correlates with the transition to SCC and with increased local relapse in patients with oral cavity SCC.
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Affiliation(s)
- Christina S Kong
- Department of Pathology, Stanford University, Stanford, California 94305-5324, USA.
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Zhang Y, Wang Y, Wu J, Li LJ. XRCC1 Arg194Trp polymorphism is associated with oral cancer risk: evidence from a meta-analysis. Tumour Biol 2013; 34:2321-7. [PMID: 23681796 DOI: 10.1007/s13277-013-0779-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2013] [Accepted: 03/26/2013] [Indexed: 02/05/2023] Open
Abstract
Previous studies show that X-ray cross-complementing group 1 (XRCC1) Arg194Trp may result in variations in host's repair efficiency of DNA damage, and this repair deficit may eventually cause individual susceptibility to oral cancer. However, published data regarding the association between XRCC1 Arg194Trp polymorphism and oral cancer risk were contradictory. The aim of this study was to derive a more precise estimation of the association of XRCC1 Arg194Trp polymorphism with oral cancer by performing a meta-analysis. Odds ratios (ORs) and 95 % confidence intervals (95 % CIs) were used to assess the strength of the association. Finally, a meta-analysis of nine eligible studies including 1,281 cases and 1,966 controls was performed. Overall, there was a significant association between XRCC1 Arg194Trp polymorphism and oral cancer risk (for Trp versus Arg: OR = 1.41, 95 % CI 1.08-1.83, P = 0.01; for TrpTrp versus ArgArg: OR = 1.50, 95 % CI 1.00-2.30, P = 0.05; for TrpTrp/ArgTrp versus ArgArg: OR = 1.49, 95 % CI 1.14-1.94, P = 0.003). After excluding those studies containing patients with oral leukoplakia, there was still an obvious association between XRCC1 Arg194Trp polymorphism and oral cancer risk (for TrpTrp/ArgTrp versus ArgArg: OR = 1.40, 95 % CI 1.14-1.71, P = 0.001). Subgroup analysis by ethnicity suggested that there was an obvious association between XRCC1 Arg194Trp polymorphism and oral cancer risk in Asians under three genetic models. In conclusion, the results from this meta-analysis suggest that XRCC1 Arg194Trp polymorphism is associated with oral cancer risk, especially in Asians.
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Affiliation(s)
- Yi Zhang
- State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
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