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Turton N, Payne K, Higginson J, Praveen P, Mehanna H, Nankivell P. Prognostic biomarkers for malignant progression of oral epithelial dysplasia: an updated systematic review and meta-analysis. Br J Oral Maxillofac Surg 2024; 62:415-425. [PMID: 38677951 DOI: 10.1016/j.bjoms.2024.03.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2023] [Revised: 02/29/2024] [Accepted: 03/03/2024] [Indexed: 04/29/2024]
Abstract
Oral epithelial dysplasia (OED) is a premalignant condition that carries an appreciable risk of malignant progression. The current grading system for severity, as defined by the World Health Organization, is a valuable clinical tool, but further work is required to improve the accuracy of predicting OED malignant progression. This systematic review aimed to assess progress in prognostic biomarker discovery in OED over the past 16 years. The primary objective was to update the latest evidence on prognostic biomarkers that may predict malignant progression of OED, with strict inclusion criteria of studies with a longitudinal design and long-term follow-up data to enhance the robustness and translational clinical potential of the findings. Of 2829 studies identified through the searching of five databases, 20 met our inclusion criteria. These studies investigated a total of 32 biomarkers, 20 of which demonstrated significant potential to predict malignant progression of OED. Meta-analysis demonstrated the significant prognostic value of four biomarkers: podoplanin, EGFR expression, p16 methylation, and DNA aneuploidy. Our review has identified 20 reported biomarkers with prognostic potential to predict malignant progression in OED, but their translation into clinical practice remains elusive. Further research is required, and this should focus on validating the promising biomarkers identified in large cohort studies, with adherence to standardised reporting guidelines.
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Affiliation(s)
- Natalie Turton
- Institute of Head and Neck Studies and Education (InHANSE) University of Birmingham, Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom.
| | - Karl Payne
- Institute of Head and Neck Studies and Education (InHANSE) University of Birmingham, Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - James Higginson
- Faculty of Medicine, Imperial College London, London SW7 2AZ, United Kingdom
| | - Prav Praveen
- Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Hisham Mehanna
- Institute of Head and Neck Studies and Education (InHANSE) University of Birmingham, Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
| | - Paul Nankivell
- Institute of Head and Neck Studies and Education (InHANSE) University of Birmingham, Institute of Cancer and Genomic Sciences, University of Birmingham, Edgbaston, Birmingham B15 2TT, United Kingdom; Queen Elizabeth Hospital, Birmingham B15 2GW, United Kingdom
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Novack R, Chapman E, Gao J, Horst B, Hoang LN, Ng TL, Ko YCK. Utilization of p53 and p16 Immunohistochemistry in the Classification of Human Papillomavirus-Associated, p53 Wild-Type, and p53 Abnormal Oral Epithelial Dysplasia. Mod Pathol 2023; 36:100348. [PMID: 37820765 DOI: 10.1016/j.modpat.2023.100348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Revised: 09/12/2023] [Accepted: 09/26/2023] [Indexed: 10/13/2023]
Abstract
p53 immunohistochemistry (IHC) has recently been shown to be a clinically useful marker for predicting risk of progression to invasive squamous cell carcinoma in oral epithelial dysplasia (OED). The literature supports the use of p53 IHC as a marker to identify TP53 mutation in in situ and invasive vulvar lesions and as a surrogate marker for high-risk human papillomavirus (HPV) infection, but there is little documentation for similar use in OED. The purpose of this study was to determine whether p53 IHC is a reliable surrogate marker for detecting both TP53 mutation and high-risk HPV infection in OED. We studied 57 cases of OED (11 mild, 18 moderate, and 28 severe), and all were stained for p16 and p53 IHC. High-risk HPV RNA in situ hybridization (ISH) was performed in selected cases (all p16-positive cases and all OED showing abundant apoptotic cells and karyorrhectic cells; N = 27). Targeted next-generation sequencing (NGS) was performed in 33 p16-negative cases and all high-risk HPV RNA ISH-negative cases (N = 36). We identified 21 cases with p53 basal sparing patterns (mid-epithelial and markedly reduced [null-like]), 14 cases with p53 wild-type patterns (scattered basal and patchy basal/parabasal), and 22 cases with p53 abnormal patterns (18 overexpression, 3 null, and 1 novel cytoplasmic pattern). Among cases with p53 basal sparing patterns, 20 were positive for p16 (20/21, 95%), and all were positive for high-risk HPV RNA ISH (21/21, 100%). The 36 sequenced cases had IHC patterns concordant with TP53 mutation status in 92% (33/36) of lesions. This study demonstrates that p53 IHC expression patterns are sensitive and specific for detection of both high-risk HPV infection and TP53 mutation. Coupled with selective p16 IHC testing, this IHC panel can accurately subclassify OED into HPV-associated, p53 wild-type (conventional), and p53 abnormal OED.
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Affiliation(s)
- Rachel Novack
- Department of Anatomical Pathology, Vancouver General Hospital, Vancouver, British Columbia, Canada
| | - Erin Chapman
- Department of Laboratory Medicine & Pathology, Faculty of Medicine & Dentistry, University of Alberta, Alberta, Canada
| | - Jiangyuan Gao
- Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada
| | - Basil Horst
- Department of Anatomical Pathology, Vancouver General Hospital, Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Lynn N Hoang
- Department of Anatomical Pathology, Vancouver General Hospital, Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Tony L Ng
- Department of Anatomical Pathology, Vancouver General Hospital, Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Yen Chen Kevin Ko
- Department of Anatomical Pathology, Vancouver General Hospital, Vancouver, British Columbia, Canada; Department of Oral Biological and Medical Sciences, Faculty of Dentistry, University of British Columbia, Vancouver, British Columbia, Canada; Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, British Columbia, Canada; Department of Laboratory Medicine and Pathology, BC Oral Biopsy Service, Vancouver General Hospital, Vancouver, British Columbia, Canada.
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Minami S, Chikazu D, Ochiya T, Yoshioka Y. Extracellular vesicle-based liquid biopsies in cancer: Future biomarkers for oral cancer. Transl Oncol 2023; 38:101786. [PMID: 37713973 PMCID: PMC10509717 DOI: 10.1016/j.tranon.2023.101786] [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: 12/30/2022] [Revised: 09/01/2023] [Accepted: 09/08/2023] [Indexed: 09/17/2023] Open
Abstract
Oral cancer is the sixth most common cancer worldwide, with approximately 530,000 new cases and 300,000 deaths each year. The process of carcinogenesis is complex, and survival rates have not changed significantly in recent decades. Early detection of cancer, prognosis prediction, treatment selection, and monitoring of progression are important to improve survival. With the recent significant advances in analytical technology, liquid biopsy has made it possible to achieve these goals. In this review, we report new results from clinical and cancer research applications of liquid biopsy, focusing on extracellular vesicles (EVs) among the major targets of liquid biopsy, namely, circulating tumor cells (CTCs), circulating tumor DNA (ctDNA), and EVs. In addition, the potential application of EVs derived from gram-negative bacteria (outer membrane vesicles; OMVs) among oral bacteria, which have recently attracted much attention, to liquid biopsy for oral cancer will also be addressed.
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Affiliation(s)
- Sakura Minami
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan; Department of Oral and Maxillofacial Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Daichi Chikazu
- Department of Oral and Maxillofacial Surgery, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Takahiro Ochiya
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan
| | - Yusuke Yoshioka
- Department of Molecular and Cellular Medicine, Institute of Medical Science, Tokyo Medical University, 6-7-1, Nishishinjuku, Shinjuku-ku, Tokyo, 160-0023, Japan.
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Jeong JS, Cho KJ, Lee HJ, Roh J, Lee YS, Song JS. Predictive modelling for the diagnosis of oral and laryngeal premalignant and malignant lesions using p53 and Ki-67 expression. Pathology 2023; 55:945-957. [PMID: 37544878 DOI: 10.1016/j.pathol.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2022] [Revised: 04/11/2023] [Accepted: 05/31/2023] [Indexed: 08/08/2023]
Abstract
Oral and laryngeal epithelial lesions are currently diagnosed using histological criteria based on the World Health Organization (WHO) classification, which can cause interobserver variability. An integrated diagnostic approach based on immunohistochemistry (IHC) would aid in the interpretation of ambiguous histological findings of epithelial lesions. In the present study, IHC was used to evaluate the expression of p53 and Ki-67 in 114 cases of oral and laryngeal epithelial lesions in 104 patients. Logistic regression analysis and decision tree algorithm were employed to develop a scoring system and predictive model for differentiating the epithelial lesions. Cohen's kappa coefficient was used to evaluate interobserver variability, and next-generation sequencing (NGS) and IHC were used to compare TP53 mutation and p53 expression patterns. Two expression patterns for p53, namely, diffuse expression type (pattern HI) and null type (pattern LS), and the pattern HI for Ki-67 were significantly associated with high-grade dysplasia (HGD) or squamous cell carcinoma (SqCC). With an accuracy and area under the receiver operating characteristic curve (AUC) of 84.6% and 0.85, respectively, the scoring system based on p53 and Ki-67 expression patterns classified epithelial lesions into two types: non-dysplasia (ND) or low-grade dysplasia (LGD) and SqCC or HGD. The decision tree model constructed using the p53 and Ki-67 expression patterns classified epithelial lesions into ND, LGD, and group 2, including HGD or SqCC, with an accuracy and AUC of 75% and 0.87, respectively. The integrated diagnosis had a better correlation with near perfect agreement (weighted kappa 0.92, unweighted kappa 0.88). The patterns HI and LS for p53 were confirmed to be correlated with missense mutations and nonsense/frameshift mutations, respectively. A predictive model for diagnosis was developed based on the correlation between TP53 mutation and p53 expression patterns. These results indicate that the scoring system based on p53 and Ki-67 expression patterns can differentiate epithelial lesions, especially in cases when the morphological features are ambiguous.
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Affiliation(s)
- Ji-Seon Jeong
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Kyung-Ja Cho
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Hee Jin Lee
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Jin Roh
- Department of Pathology, Ajou University School of Medicine, Suwon, South Korea
| | - Yoon Se Lee
- Department of Otolaryngology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea
| | - Joon Seon Song
- Department of Pathology, University of Ulsan College of Medicine, Asan Medical Center, Seoul, South Korea.
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Mohapatra D, Panda S, Mohanty N, Panda S, Lewkowicz N, Lapinska B. Comparison of Immunohistochemical Markers in Oral Submucous Fibrosis and Oral Submucous Fibrosis Transformed to Oral Squamous Cell Carcinoma-A Systematic Review and Meta-Analysis. Int J Mol Sci 2023; 24:11771. [PMID: 37511530 PMCID: PMC10380386 DOI: 10.3390/ijms241411771] [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: 06/15/2023] [Revised: 07/18/2023] [Accepted: 07/18/2023] [Indexed: 07/30/2023] Open
Abstract
The objective of the study was to compare the expression of immunohistochemical (IHC) markers of oral submucous fibrosis (OSMF) (non-transformed group) to those of oral squamous cell carcinoma (OSCC) transformed from OSMF (transformed group). The search for comparative cross-sectional studies was carried out in PubMed and Scopus abiding to the PICO criteria, where expression of IHC markers in OSMF were compared with that of OSCC transformed from OSMF. The cellular distribution, number of positive cases, staining intensity, and mean immunoreactive score (IRS) of each IHC marker were evaluated in both groups. A total of 14 studies were included in the systematic review, in which immunoexpression of 15 epithelial and 4 connective tissue biomarkers were evaluated. Expression of β1-integrin, OCT-3, CD1a, CD207, survivin, Dickkopf-1, COX-2, hTERT, CTGF, MDM2, Ki-67, and α-SMA were increased during transformation of OSMF to OSCC. Conversely, expression of PTEN and lysyl oxidase decreased during transformation of OSMF to OSCC. Expression of a group of epithelial markers, such as COX2, hTERT, CTGF, survivin, MDM2, and p53, was 38 times lower in the non-transformed group cases compared to transformed group cases (95% CI: 58% to 10%; p = 0.01; and I2 = 90%). Meta-analysis of all markers involved in cell metabolism/apoptosis, which included β1-integrin along with the above markers also suggested 42 times lower expression in the non-transformed group as compared to the transformed group (95% CI: 58% to 10%; p = 0.01; and I2 = 90%). Sub-group analyses on cytoplasmic and nuclear epithelial markers were inconclusive. Meta-analysis of connective tissue markers was also inconclusive. No publication bias was found. Instead of delving into numerous markers without a strong basis for their use, it is advisable to further study the markers identified in this study to explore their clinical utility.
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Affiliation(s)
- Diksha Mohapatra
- Department of Oral Pathology and Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan University, Bhubaneswar 751003, Odisha, India
| | - Swagatika Panda
- Department of Oral Pathology and Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan University, Bhubaneswar 751003, Odisha, India
| | - Neeta Mohanty
- Department of Oral Pathology and Microbiology, Institute of Dental Sciences, Siksha 'O' Anusandhan University, Bhubaneswar 751003, Odisha, India
| | - Saurav Panda
- Department of Periodontics and Oral Implantology, Institute of Dental Sciences, Siksha 'O' Anusandhan University, Bhubaneswar 751003, Odisha, India
| | - Natalia Lewkowicz
- Department of Periodontology and Oral Diseases, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland
| | - Barbara Lapinska
- Department of General Dentistry, Medical University of Lodz, 251 Pomorska St., 92-213 Lodz, Poland
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Merat R. The human antigen R as an actionable super-hub within the network of cancer cell persistency and plasticity. Transl Oncol 2023; 35:101722. [PMID: 37352624 DOI: 10.1016/j.tranon.2023.101722] [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: 04/07/2023] [Revised: 05/30/2023] [Accepted: 06/12/2023] [Indexed: 06/25/2023] Open
Abstract
In this perspective article, a clinically inspired phenotype-driven experimental approach is put forward to address the challenge of the adaptive response of solid cancers to small-molecule targeted therapies. A list of conditions is derived, including an experimental quantitative assessment of cell plasticity and an information theory-based detection of in vivo dependencies, for the discovery of post-transcriptional druggable mechanisms capable of preventing at multiple levels the emergence of plastic dedifferentiated slow-proliferating cells. The approach is illustrated by the author's own work in the example case of the adaptive response of BRAFV600-melanoma to BRAF inhibition. A bench-to-bedside and back to bench effort leads to a therapeutic strategy in which the inhibition of the baseline activity of the interferon-γ-activated inhibitor of translation (GAIT) complex, incriminated in the expression insufficiency of the RNA-binding protein HuR in a minority of cells, results in the suppression of the plastic, intermittently slow-proliferating cells involved in the adaptive response. A similar approach is recommended for the validation of other classes of mechanisms that we seek to modulate to overcome this complex challenge of modern cancer therapy.
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Affiliation(s)
- Rastine Merat
- Dermato-Oncology Unit, Division of Dermatology, Geneva University Hospitals, Switzerland; Department of Pathology and Immunology, Faculty of Medicine, University of Geneva, Switzerland.
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Prime SS, Cirillo N, Parkinson EK. Escape from Cellular Senescence Is Associated with Chromosomal Instability in Oral Pre-Malignancy. BIOLOGY 2023; 12:biology12010103. [PMID: 36671795 PMCID: PMC9855962 DOI: 10.3390/biology12010103] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/27/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 01/12/2023]
Abstract
An escape from cellular senescence through the development of unlimited growth potential is one of the hallmarks of cancer, which is thought to be an early event in carcinogenesis. In this review, we propose that the molecular effectors of senescence, particularly the inactivation of TP53 and CDKN2A, together with telomere attrition and telomerase activation, all lead to aneuploidy in the keratinocytes from oral potentially malignant disorders (OPMD). Premalignant keratinocytes, therefore, not only become immortal but also develop genotypic and phenotypic cellular diversity. As a result of these changes, certain clonal cell populations likely gain the capacity to invade the underlying connective tissue. We review the clinical implications of these changes and highlight a new PCR-based assay to identify aneuploid cell in fluids such as saliva, a technique that is extremely sensitive and could facilitate the regular monitoring of OPMD without the need for surgical biopsies and may avoid potential biopsy sampling errors. We also draw attention to recent studies designed to eliminate aneuploid tumour cell populations that, potentially, is a new therapeutic approach to prevent malignant transformations in OPMD.
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Affiliation(s)
- Stephen S. Prime
- Centre for Immunology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UK
- Correspondence: (S.S.P.); (E.K.P.)
| | - Nicola Cirillo
- Melbourne Dental School, University of Melbourne, 720 Swanson Street, Melbourne, VIC 3053, Australia
| | - E. Kenneth Parkinson
- Centre for Immunology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London E1 4NS, UK
- Correspondence: (S.S.P.); (E.K.P.)
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Muacevic A, Adler JR, Ballaji MM, Alharbi AM, Alhejaili ME, Altamimi HS, Abu Altaher MJ, Ballaji MB, Aljohani AS, Alahmdi AA, Alsaedi RN, Aeq MS, Alahmadi AS, Alraddadi AF, Jamous YF. Cytological Changes and Immunocytochemistry Expression of P53 in Oral Mucosa Among Waterpipe Users in the Kingdom of Saudi Arabia. Cureus 2022; 14:e31190. [PMID: 36505115 PMCID: PMC9728011 DOI: 10.7759/cureus.31190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/07/2022] [Indexed: 11/09/2022] Open
Abstract
Objective In this study, we aimed to assess cytological changes and p53 expression in oral mucosa among waterpipe users in the Kingdom of Saudi Arabia (KSA). Methodology A case-control study was conducted in KSA from January to October 2022. Two cytologic oral smear samples each were taken from 500 volunteers; 300 were waterpipe users (case) while 200 did not use a waterpipe (control). They were then stained using the Papanicolaou staining procedure and immunocytochemical method to show the expression of P53. Results The interpretation of the Papanicolaou staining outcomes showed the presence of four results with different proportions: inflammation, infection, atypia, and keratinization. Cytological inflammation was identified among 77/300 (25.6%) waterpipe smokers, which was higher than that among non-users (12/200, 6%). The reverse cytological infection and atypia were also higher in waterpipe smokers compared with controls (9% vs. 4.5% and 4.3% vs. 0.5%, respectively), and keratinization was detected only in waterpipe users (3.6%) compared with controls. Waterpipe users had higher p53 protein expression than non-users. Conclusion Using a waterpipe is an effective way to change the oral mucosa. In atypia and keratinization, there was high p53 expression. These results could indicate that p53 is involved in both the change from normal to cancerous cells and the growth of new cells, but the presence or absence of p53 staining could not be used to predict the outcome of potentially cancerous oral mucosal lesions.
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Ahmed S, Khan S, Qureshi MA, Bukhari U, Anis M, Mughal MN. Expressional variations of Kaiso: an association with pathological characteristics and field cancerization of OSCC. BMC Cancer 2022; 22:990. [PMID: 36115941 PMCID: PMC9482199 DOI: 10.1186/s12885-022-10014-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Accepted: 08/01/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
A group of genetically altered cells that have not transformed into a clinical or histologically identifiable state of malignancy but contains a higher risk of transforming into one is known as the field of cancerization. Numerous molecules are being investigated for their significance in the development of this phenomenon. One such protein of this family is Kaiso also known as ZBTB33 (Zinc Finger and BTB Domain containing 33). This protein belongs to the POZ-ZF family of transcription factors and may have functional tasks similar to its other siblings such as the growth and development of vertebrates and the pathogenesis of neoplastic diseases. Nevertheless, its role in the pathogenesis, progression, epithelial mesenchyal transition and field cancerization in case of oral cancer still needs exploration. Hence, this study was designed to explore the expressional differences between the mucosa of controls and those diagnosed with oral squamous cell carcinoma (OSCC).
Methods
Soft tissue samples were obtained from the main tumor, tumor periphery and opposite buccal mucosa of 50 oral cancer patients, whereas normal mucosa was taken from 50 volunteers undergoing elective tooth removal. The acquired samples were subjected to Immunohistochemical exploration for expression of Kaiso and E-Cadherin. The expression was measured using Image-J IHC profiler and summed as Optical density. The Optical density values were then subjected to statistical analysis.
Results
Results revealed a significant differential expression of Kaiso between the mucosal tissues taken from oral cancer patients and controls (p-value: < 0.0001), showing almost 50% down-regulation of Kaiso in all three tissue samples taken from oral cancer patients as compared to normal mucosa.
Conclusion
Kaiso has a significant difference of expression in the mucosa of oral cancer patients as compared to the mucosa of normal patients, making it a probable contributor to disease pathogenesis and field cancerization.
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On the Cutting Edge of Oral Cancer Prevention: Finding Risk-Predictive Markers in Precancerous Lesions by Longitudinal Studies. Cells 2022; 11:cells11061033. [PMID: 35326482 PMCID: PMC8947091 DOI: 10.3390/cells11061033] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/11/2022] [Accepted: 03/13/2022] [Indexed: 02/06/2023] Open
Abstract
Early identification and management of precancerous lesions at high risk of developing cancers is the most effective and economical way to reduce the incidence, mortality, and morbidity of cancers as well as minimizing treatment-related complications, including pain, impaired functions, and disfiguration. Reliable cancer-risk-predictive markers play an important role in enabling evidence-based decision making as well as providing mechanistic insight into the malignant conversion of precancerous lesions. The focus of this article is to review updates on markers that may predict the risk of oral premalignant lesions (OPLs) in developing into oral squamous cell carcinomas (OSCCs), which can logically be discovered only by prospective or retrospective longitudinal studies that analyze pre-progression OPL samples with long-term follow-up outcomes. These risk-predictive markers are different from those that prognosticate the survival outcome of cancers after they have been diagnosed and treated, or those that differentiate between different lesion types and stages. Up-to-date knowledge on cancer-risk-predictive markers discovered by longitudinally followed studies will be reviewed. The goal of this endeavor is to use this information as a starting point to address some key challenges limiting our progress in this area in the hope of achieving effective translation of research discoveries into new clinical interventions.
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Ramos-García P, González-Moles MÁ, Warnakulasuriya S. Significance of p53 overexpression in the prediction of the malignant transformation risk of oral potentially malignant disorders: A systematic review and meta-analysis. Oral Oncol 2022; 126:105734. [DOI: 10.1016/j.oraloncology.2022.105734] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 01/10/2022] [Accepted: 01/19/2022] [Indexed: 12/24/2022]
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Sawada K, Momose S, Kawano R, Kohda M, Irié T, Mishima K, Kaneko T, Horie N, Okazaki Y, Higashi M, Tamaru JI. Immunohistochemical staining patterns of p53 predict the mutational status of TP53 in oral epithelial dysplasia. Mod Pathol 2022; 35:177-185. [PMID: 34404905 DOI: 10.1038/s41379-021-00893-9] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Revised: 08/03/2021] [Accepted: 08/04/2021] [Indexed: 11/09/2022]
Abstract
Next-generation sequencing of oral squamous cell carcinoma (OSCC) has revealed TP53 as the most frequently mutated gene in OSCC mutually exclusive with human papillomavirus infection. Oral epithelial dysplasia (OED) is defined as a precancerous lesion of OSCC by the current World Health Organization (WHO) classification; therefore, it is assumed that TP53 mutations occur in early precancerous conditions such as OED. Here, we conducted an integrated analysis of TP53, including whole coding sequencing of TP53, FISH analysis of the 17p13.1 locus, and immunohistochemical analysis for p53 (p53-IHC), in 40 OED cases. We detected 20 mutations in 16 (40%) OED cases, and four cases, each harbored two mutations. FISH analysis revealed six of 24 cases (25%) had a deletion on 17p13.1, and four cases had concurrent TP53 mutations and 17p13.1 deletion (2-hit). Also, the increased frequency of TP53 mutations in higher degrees of OED implies acquisition of the mutation is a major event toward OSCC. p53-IHC revealed that overall cases could be categorized into four patterns that correlate well with the mutational status of TP53. Especially, two patterns, broad p53 expression type (pattern HI) and p53 null type (pattern LS), strongly correlated with a missense mutation and nonsense mutation, respectively. Furthermore, seven of the 40 cases progressed to SCC, and six of these seven cases presented pattern HI or LS. Therefore, patterns HI and LS have a high risk for malignant transformation if excisional treatment is not performed irrespective of the dysplasia grade. Although the current WHO classification mainly focuses on morphological criteria for the diagnosis of OED, interobserver discrepancy appears in some instances of the OED diagnosis. Our immunohistochemical analysis supports a more accurate pathological diagnosis for OED in cases of low dysplastic changes or of differential diagnosis with non-dysplastic lesions.
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Affiliation(s)
- Keisuke Sawada
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Shuji Momose
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan.
| | - Ryutaro Kawano
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Masakazu Kohda
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Tarou Irié
- Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, Iwate, Japan
| | - Kenji Mishima
- Division of Pathology, Department of Oral Diagnostic Sciences, Showa University School of Dentistry, Tokyo, Japan
| | - Takahiro Kaneko
- Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Norio Horie
- Department of Oral and Maxillofacial Surgery, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Yasushi Okazaki
- Diagnostics and Therapeutics of Intractable Diseases, Intractable Disease Research Center, Graduate School of Medicine, Juntendo University, Tokyo, Japan
| | - Morihiro Higashi
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
| | - Jun-Ichi Tamaru
- Department of Pathology, Saitama Medical Center, Saitama Medical University, Saitama, Japan
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13
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Aswath N, Ramesh B, Shyamsundar V. Determining the probability of malignant transformation of tobacco-induced oral leukoplakia using tissue p53 as a prognostic marker – A cross-sectional study. JOURNAL OF INDIAN ACADEMY OF ORAL MEDICINE AND RADIOLOGY 2022. [DOI: 10.4103/jiaomr.jiaomr_29_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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14
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Khan AS, Ahmad S, Ullah Z, Sadiq N, Haq M, Sheikh AK. Predictive value of tissue p53 protein expression and serum p53 antibodies in oral potentially malignant disorders: Relative to oral squamous cell carcinoma. J Taibah Univ Med Sci 2021; 17:415-423. [PMID: 35722241 PMCID: PMC9170774 DOI: 10.1016/j.jtumed.2021.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2021] [Revised: 11/07/2021] [Accepted: 11/20/2021] [Indexed: 11/30/2022] Open
Abstract
Objective This study aims to assess and report the predictive value of tissue p53 protein expression and serum p53 antibodies as a screening tool for oral potentially malignant disorders (OPMDs) cases with risk of malignant transformation. Methods A case–control study was jointly conducted at the Department of Pathology and Oral and Maxillofacial Surgery in several dental institutes in the country from April 2016 to March 2017. A total of 180 eligible subjects (60 cases of OPMDs, 60 cases of oral squamous cell carcinoma, and 60 controls) were included in the study. Tissue p53 immunoreactivity was determined by immunohistochemistry, and serum concentrations of p53 antibodies were determined by enzyme-linked immunosorbent assay. Specimens were collected for laboratory investigations after obtaining written consent from both patients and controls. Results Among the study participants, the recorded male to female ratio was close to 2:1, and most participants fell in the age range of 41–60 years and above. Of the 60 cases of OPMDs, the observed tissue p53 immunopositivity was 73.3% (n = 44) while for the p53 antibody, the seropositivity was 96.7% (n = 58). The sensitivity for p53 immunoreactivity was 73%, and specificity was 98.3% between OPMDs and healthy individuals. Conclusion The present study provides evidence (for OPMDs) that serum p53 antibodies and p53 immunoreactivity could be used as a sensitivity test and a specific test, respectively, and may contribute to determining the potential of OPMD for malignant transformation risk.
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Affiliation(s)
- Abbas S. Khan
- Department of Oral Pathology, Peshawar Dental College, Warsak Road, Peshawar, Khyber Pakhtunkhwa, Pakistan
- Corresponding address: Department of Oral Pathology, Peshawar Dental College, Riphah International University, Islamabad, Pakistan.
| | - Sajjad Ahmad
- Department of Pathology, Peshawar Medical College, Riphah International University, Islamabad, Pakistan
| | - Zahoor Ullah
- Department of Biochemistry, Peshawar Medical College, Riphah International University, Islamabad, Pakistan
| | - Naveed Sadiq
- Institute of Public Health & Social Sciences, Khyber Medical University, Peshawar, Pakistan
| | - Mohsina Haq
- Department of Microbiology, Peshawar Medical College, Riphah International University, Islamabad, Pakistan
| | - Ahmareen K. Sheikh
- Department of Pathology, Pakistan Institute of Medical Sciences, Islamabad, Pakistan
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15
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Yang X, Song X, Zhang X, Shankar V, Wang S, Yang Y, Chen S, Zhang L, Ni Y, Zare RN, Hu Q. In situ DESI-MSI lipidomic profiles of mucosal margin of oral squamous cell carcinoma. EBioMedicine 2021; 70:103529. [PMID: 34391097 PMCID: PMC8374374 DOI: 10.1016/j.ebiom.2021.103529] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 07/15/2021] [Accepted: 07/28/2021] [Indexed: 01/22/2023] Open
Abstract
Background Although there is consensus that the optimal safe margin is ≥ 5mm, obtaining clear margins (≥5 mm) intraoperatively seems to be the major challenge. We applied a molecular diagnostic method at the lipidomic level to determine the safe surgical resection margin of OSCC by desorption electrospray ionisation mass spectrometry imaging (DESI-MSI). Methods By overlaying mass spectrometry images with hematoxylin-eosin staining (H&E) from 18 recruited OSCC participants, the mass spectra of all pixels across the diagnosed tumour and continuous mucosal margin regions were extracted to serve as the training and validation datasets. A Lasso regression model was used to evaluate the test performance. Findings By leave-one-out validation, the Lasso model achieved 88.6% accuracy in distinguishing between tumour and normal regions. To determine the safe surgical resection distance and margin status of OSCC, a set of 14 lipid ions that gradually decreased from tumour to normal tissue was assigned higher weight coefficients in the Lasso model. The safe surgical resection distance of OSCC was measured using the developed 14 lipid ion molecular diagnostic model for clinical reference. The overall accuracy of predicting tumours, positive margins, and negative margins was 92.6%. Interpretation The spatial segmentation results based on our diagnostic model not only clearly delineated the tumour and normal tissue, but also distinguished the different status of surgical margins. Meanwhile, the safe surgical resection margin of OSCC on frozen sections can also be accurately measured using the developed diagnostic model. Funding This study was supported by Nanjing Municipal Key Medical Laboratory Constructional Project Funding (since 2016) and the Centre of Nanjing Clinical Medicine Tumour (since 2014).
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Affiliation(s)
- Xihu Yang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu, 210008, China; Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China.
| | - Xiaowei Song
- Department of Chemistry, Fudan University, Shanghai, 200438, China
| | - Xiaoxin Zhang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China
| | - Vishnu Shankar
- Department of Chemistry, Stanford University, Stanford, California, 94305, USA
| | - Shuai Wang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China
| | - Yan Yang
- Department of Oral Pathology, Stomatological hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China
| | - Sheng Chen
- Department of Oral Pathology, Stomatological hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China
| | - Lei Zhang
- Department of Oral Pathology, Stomatological hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China
| | - Yanhong Ni
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China.
| | - Richard N Zare
- Department of Chemistry, Fudan University, Shanghai, 200438, China; Department of Chemistry, Stanford University, Stanford, California, 94305, USA.
| | - Qingang Hu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu, 210000, China.
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16
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Prime SS, Cirillo N, Cheong SC, Prime MS, Parkinson EK. Targeting the genetic landscape of oral potentially malignant disorders has the potential as a preventative strategy in oral cancer. Cancer Lett 2021; 518:102-114. [PMID: 34139286 DOI: 10.1016/j.canlet.2021.05.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2021] [Revised: 05/19/2021] [Accepted: 05/24/2021] [Indexed: 12/12/2022]
Abstract
This study reviews the molecular landscape of oral potentially malignant disorders (OPMD). We examine the impact of tumour heterogeneity, the spectrum of driver mutations (TP53, CDKN2A, TERT, NOTCH1, AJUBA, PIK3CA, CASP8) and gene transcription on tumour progression. We comment on how some of these mutations impact cellular senescence, field cancerization and cancer stem cells. We propose that OPMD can be monitored more closely and more dynamically through the use of liquid biopsies using an appropriate biomarker of transformation. We describe new gene interactions through the use of a systems biology approach and we highlight some of the first studies to identify functional genes using CRISPR-Cas9 technology. We believe that this information has translational implications for the use of re-purposed existing drugs and/or new drug development. Further, we argue that the use of digital technology encompassing clinical and laboratory-based data will create relevant datasets for machine learning/artificial intelligence. We believe that therapeutic intervention at an early molecular premalignant stage should be an important preventative strategy to inhibit the development of oral squamous cell carcinoma and that this approach is applicable to other aerodigestive tract cancers.
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Affiliation(s)
- S S Prime
- Centre for Immunology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
| | - N Cirillo
- Melbourne Dental School, University of Melbourne, 720 Swanson Street, Carlton, Melbourne, Victoria, 3053, Australia.
| | - S C Cheong
- Head and Neck Cancer Research Team, Cancer Research Malaysia, 1 Jalan SS12/1A, Subang Jaya, Selangor, Malaysia.
| | - M S Prime
- Roche Diagnostics Information Solutions, Hoffman-La Roche Ltd., Grenzacherstrasse 124, 4070, Basel, Switzerland.
| | - E K Parkinson
- Centre for Immunology and Regenerative Medicine, Institute of Dentistry, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, London, E1 4NS, UK.
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17
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Toprani SM, Kelkar Mane V. A short review on DNA damage and repair effects in lip cancer. Hematol Oncol Stem Cell Ther 2021; 14:267-274. [PMID: 33626329 DOI: 10.1016/j.hemonc.2021.01.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2020] [Revised: 01/20/2021] [Accepted: 01/26/2021] [Indexed: 11/28/2022] Open
Abstract
Increasing trend in oral cancer (0.6% per year) and its related mortality has been reported worldwide since 2010. The United States alone reports an increase of 57% within the past 10 years. This emphasizes the need not only for designing strategies of prevention and planning but also for an effective treatment regime for the various oral cancers. Cancers of the lips, tongue, cheeks, floor of the mouth, and hard palate have been primarily classified under the category of oral cancers. If left undiagnosed, these cancers can be life threatening. Amongst these, the most undesignated and understudied cancer type is the lip carcinoma, which is either categorized under oral cancer or/as well as skin cancer or head and neck cancer. However, lip cancer corresponds to 25-30% of all diagnosed oral cancers. Though the etiology of lip cancer is not yet fully understood, numerous risk factors involved in its development are now being studied. The cells in the lip region are continuously exposed to various DNA damaging agents from endogenous as well as exogenous sources. Flaws in DNA repair mechanisms involved in eliminating these damages may be linked to the origin of carcinogenesis. Accumulation of DNA damage and defect in repair mechanisms may play a role in lip carcinogenesis and progression. This literature review is an exhaustive compilation of the research work performed on the role of DNA damage and repair responses in lip carcinoma which will pave a path for researchers to identify predictive DNA repair biomarker/s for lip cancer, and its diagnosis, prevention, and treatment.
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Affiliation(s)
- Sneh M Toprani
- Department of Biotechnology, University of Mumbai, Mumbai, India; John B Little Center of Radiation Sciences, Department of Environmental Health, Harvard T H Chan School of Public Health, Boston, MA 02115, USA.
| | - Varsha Kelkar Mane
- John B Little Center of Radiation Sciences, Department of Environmental Health, Harvard T H Chan School of Public Health, Boston, MA 02115, USA
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18
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Marttila E, Rusanen P, Uittamo J, Salaspuro M, Rautemaa-Richardson R, Salo T. Expression of p53 is associated with microbial acetaldehyde production in oralsquamous cell carcinoma. Oral Surg Oral Med Oral Pathol Oral Radiol 2020; 131:527-533. [PMID: 33858805 DOI: 10.1016/j.oooo.2020.11.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Revised: 09/09/2020] [Accepted: 11/25/2020] [Indexed: 10/22/2022]
Abstract
OBJECTIVES The objective of this study was to investigate the association between p53 expression and microbial acetaldehyde production in patients with oral squamous cell carcinoma (OSCC). STUDY DESIGN Oral mucosal biopsies from 22 patients with OSCC and 24 healthy controls (HCs) were collected. p53 expression was analyzed by immunohistochemistry. Microbial samples were collected from the mucosa and microbial acetaldehyde production from ethanol was measured by gas chromatography. RESULTS The majority of all OSCC (77%) and HC samples (67%) produced mutagenic levels of acetaldehyde (>100 µM). A significant positive correlation between microbial acetaldehyde production and p53 expression levels in OSCC samples was seen in the intermediate and superficial layers of the epithelium of the infiltrative zone (P = .0005 and P = .0004, respectively) and in the superficial layer of the healthy appearing mucosa next to the tumor (P = .0391). There was no significant correlation between acetaldehyde levels and p53 expression in HC samples. CONCLUSIONS Our results show an association between microbial acetaldehyde production and immunostaining of p53 in OSCC samples.
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Affiliation(s)
- Emilia Marttila
- Department of Oral and Maxillofacial Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland.
| | - Peter Rusanen
- Department of Bacteriology and Immunology, Haartman Institute, University of Helsinki, Helsinki, Finland
| | - Johanna Uittamo
- Department of Oral and Maxillofacial Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; Research Unit on Acetaldehyde and Cancer, University of Helsinki, Helsinki, Finland
| | - Mikko Salaspuro
- Research Unit on Acetaldehyde and Cancer, University of Helsinki, Helsinki, Finland
| | - Riina Rautemaa-Richardson
- Division of Infection, Immunity and Respiratory Medicine, School of Biological Sciences, NIHR Manchester Biomedical Research Centre (BRC) at the Manchester Academic Health Science Centre, The University of Manchester, Manchester, UK; Manchester University NHS Foundation Trust, Wythenshawe Hospital, Manchester, UK
| | - Tuula Salo
- Department of Oral and Maxillofacial Surgery, Helsinki University Hospital and University of Helsinki, Helsinki, Finland; HUSLAB, Department of Pathology, Helsinki University Central Hospital, University of Helsinki, Helsinki, Finland; Department of Diagnostics and Oral Medicine, Institute of Dentistry, University of Oulu, Oulu, and University of Helsinki, Helsinki, Finland
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From cancer to rejuvenation: incomplete regeneration as the missing link (part II: rejuvenation circle). Future Sci OA 2020; 6:FSO610. [PMID: 32983567 PMCID: PMC7491027 DOI: 10.2144/fsoa-2020-0085] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
In the first part of our study, we substantiated that the embryonic reontogenesis and malignant growth (disintegrating growth) pathways are the same, but occur at different stages of ontogenesis, this mechanism is carried out in opposite directions. Cancer has been shown to be epigenetic-blocked redifferentiation and unfinished somatic embryogenesis. We formulated that only this approach of aging elimination has real prospects for a future that is fraught with cancer, as we will be able to convert this risk into a rejuvenation process through the continuous cycling of cell dedifferentiation-differentiation processes (permanent remorphogenesis). Here, we continue to develop the idea of looped ontogenesis and formulate the concept of the rejuvenation circle.
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20
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Oral potentially malignant disorders: A scoping review of prognostic biomarkers. Crit Rev Oncol Hematol 2020; 153:102986. [PMID: 32682268 DOI: 10.1016/j.critrevonc.2020.102986] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 05/07/2020] [Accepted: 05/12/2020] [Indexed: 02/08/2023] Open
Abstract
This scoping review aimed to map evidence regarding biomarkers for malignant transformation of oral potentially malignant disorders (OPMD). Seventy-three longitudinal studies investigating prognostic biomarkers for OPMD malignant transformation were included, encompassing 5612 disorders and 108 biomarkers, of which 72 were investigated by immunohistochemistry. Most biomarkers were assessed in one or two studies, while five (p53, Ki-67, podoplanin, p16, and DNA ploidy) were analyzed in five or more studies. All studies investigating podoplanin (n = 8) reported a significant association between positive/high immunoexpression and malignant transformation. Similarly, all studies assessing DNA ploidy (n = 5) found that aneuploidy or gross genomic aberrations were significantly associated with malignant transformation. Included studies often presented mixed data from different OPMD subtypes, inadequate description of population characteristics, and lack of adjusted analysis for confounding factors. One hundred and eight biomarkers were identified and, from these, podoplanin immunoexpression and DNA ploidy were considered promising candidates for future long-term clinical research.
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21
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Celentano A, Glurich I, Borgnakke WS, Farah CS. World Workshop on Oral Medicine VII: Prognostic biomarkers in oral leukoplakia and proliferative verrucous leukoplakia-A systematic review of retrospective studies. Oral Dis 2020; 27:848-880. [PMID: 32306449 DOI: 10.1111/odi.13363] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2020] [Revised: 04/06/2020] [Accepted: 04/13/2020] [Indexed: 12/15/2022]
Abstract
OBJECTIVE To systematically review retrospective studies examining prognostic potentials of candidate biomarkers to stratify malignant progression of oral leukoplakia (OL) and proliferative verrucous leukoplakia (PVL). MATERIALS AND METHODS A systematic literature search of PubMed, EMBASE, Evidence-Based Medicine and Web of Science databases targeted literature published through 29 March 2018. Inter-rater agreement was ascertained during title, abstract and full-text reviews. Eligibility evaluation and data abstraction from eligible studies were guided by predefined PICO questions and bias assessment by the Quality in Prognosis Studies tool. Reporting followed Preferred Reporting Items for Systematic Review and Meta-Analysis criteria. Biomarkers were stratified based on cancer hallmarks. RESULTS Eligible studies (n = 54/3,415) evaluated 109 unique biomarkers in tissue specimens from 2,762 cases (2,713 OL, 49 PVL). No biomarker achieved benchmarks for clinical application to detect malignant transformation. Inter-rater reliability was high, but 65% of included studies had high "Study Confounding" bias risk. CONCLUSION There was no evidence to support translation of candidate biomarkers predictive of malignant transformation of OL and PVL. Systematically designed, large, optimally controlled, collaborative, prospective and longitudinal studies with a priori-specified methods to identify, recruit, prospectively follow and test for malignant transformation are needed to enhance feasibility of prognostic biomarkers predicting malignant OL or PVL transformation.
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Affiliation(s)
- Antonio Celentano
- Melbourne Dental School, The University of Melbourne, Melbourne, Vic., Australia
| | - Ingrid Glurich
- Center for Oral and Systemic Health, Marshfield Clinic Research Institute, Marshfield, WI, USA
| | - Wenche S Borgnakke
- Department of Periodontics and Oral Medicine, School of Dentistry, University of Michigan, Ann Arbor, MI, USA
| | - Camile S Farah
- Australian Centre for Oral Oncology Research & Education, Perth, WA, Australia.,Oral, Maxillofacial and Dental Surgery, Fiona Stanley Hospital, Murdoch, WA, Australia
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22
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Kamat MS, Rai BD, Puranik RS, Datar UV. Immunoexpression of p53 in histologically negative surgical margins adjacent to oral squamous cell carcinoma: A preliminary study. J Oral Maxillofac Pathol 2020; 24:184. [PMID: 32508474 PMCID: PMC7269284 DOI: 10.4103/jomfp.jomfp_288_19] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2019] [Accepted: 10/15/2019] [Indexed: 11/04/2022] Open
Abstract
The prognostic significance of genetic changes occurring in the histologically negative surgical margins (HNMs) has been focus of various studies recently. Since p53 is the most frequently observed genetic alteration found in oral squamous cell carcinoma (OSCC), we hypothesized that a similar variation might be evident in HNMs as well. Literature is scarce regarding comparison of expression of p53 in the tumor tissue and its adjacent HNMs; hence, the aim of the present study was to study p53 immunoexpression in OSCC and its HNMs. We included 12 paraffin-embedded tissue blocks of OSCC having tumor tissue and HNMs. The samples were subjected to immunohistochemical staining using primary mouse monoclonal antibody against p53, and the stained slides were evaluated for staining intensity and percentage of expression. Descriptive analysis and Chi-square test were applied. The expression of p53 was observed in 66% of HNMs and 91.6% of tumor tissue. The three cases which showed local recurrence demonstrated the expression of p53 in HNM. Hence, molecular analysis of p53 in surgical margins might potentially predict local recurrence of OSCC.
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Affiliation(s)
- Mamata S Kamat
- PhD Scholar, Faculty of Dental Sciences, Pacific Academy of Higher Education and Research University, Udaipur, Rajasthan, India
| | - Bhagwan Das Rai
- Department of Oral and Maxillofacial Surgery, Pacific Dental College and Hospital, Udaipur, Rajasthan, India
| | - Rudrayya S Puranik
- Department of Oral Pathology and Microbiology, PMNM Dental College and Hospital, Bagalkot, Karnataka, India
| | - Uma V Datar
- Department of Oral Pathology, BV(DU) Dental College and Hospital, Sangli, Maharashtra, India
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23
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Li MM, Puram SV, Silverman DA, Old MO, Rocco JW, Kang SY. Margin Analysis in Head and Neck Cancer: State of the Art and Future Directions. Ann Surg Oncol 2019; 26:4070-4080. [PMID: 31385128 PMCID: PMC7382965 DOI: 10.1245/s10434-019-07645-9] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2019] [Indexed: 01/28/2023]
Abstract
BACKGROUND The status of surgical margins is the most important prognosticator for patients undergoing surgical resection of head and neck squamous cell carcinoma (HNSCC). Despite this, analysis of surgical margins is fraught with inconsistencies, including the ways in which margins are sampled and interpreted. Fundamentally, even the definition what constitutes a "clear" (or negative) margin may vary between institutions, surgeons, and pathologists. METHODS The PubMed database was queried for articles relevant to the topic, and experts in the field were consulted regarding key articles for inclusion. Abstracts were reviewed and the full text was accessed for articles of particular interest. RESULTS Data regarding various approaches to traditional margin analysis have been published without consensus. Several next-generation technologies have emerged in recent years that hold promise. CONCLUSION An overview and appraisal of traditional margin analysis techniques are provided. Additionally, we explore novel technologies that may assist in more accurate margin assessment, guide the extent of surgical resections intraoperatively, and inform decisions regarding adjuvant treatment postoperatively.
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Affiliation(s)
- Michael M Li
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
| | - Sidharth V Puram
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
| | - Dustin A Silverman
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
| | - Matthew O Old
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
| | - James W Rocco
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA
| | - Stephen Y Kang
- Division of Head and Neck Oncology, Department of Otolaryngology - Head and Neck Surgery, The James Cancer Hospital and Solove Research Institute, The Ohio State University, Columbus, OH, USA.
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Amino acids signatures of distance-related surgical margins of oral squamous cell carcinoma. EBioMedicine 2019; 48:81-91. [PMID: 31631041 PMCID: PMC6838421 DOI: 10.1016/j.ebiom.2019.10.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2019] [Revised: 10/02/2019] [Accepted: 10/02/2019] [Indexed: 11/23/2022] Open
Abstract
BACKGROUND Histological assessment of resected margins has some drawbacks. We therefore aimed to identify a panel of metabolic markers for evaluating the surgical margins of oral squamous cell carcinoma during surgery. METHODS A total of 28 case of OSCC samples were enrolled in the study. Gas chromatography-mass spectrometry based untargeted metabolic analysis was employed to acquire the metabolic perturbation of the distance-related surgical margins in the development group. The acquired MS data were then subjected to univariate and multivariate analysis by MetaboAnalyst. Ultra-high performance liquid chromatography-tandem mass spectrometerbased targeted metabolomics for quantitative analysis of the validation group was performed to verify the results of the development group. Another 60 OSCC patients with dysplastic surgical margins were used to further validate the results of the development group by immunohistochemical examination of key enzyme expression, and correlate them with clinicopathological parameters and clinical outcomes. FINDINGS We finally identified 4 amino acids as negative margin markers, and 6 amino acids as dysplastic margin markers. IHC analysis showed that asparagine synthetase positive expression in dysplastic surgical margins and its higher expression was correlated with tumor recurrence and local relapse-free survival. INTERPRETATIONS We developed a panel of metabolic molecular markers to supplement the evaluation of negative and dysplastic margins. FUND: This study was supported by Nanjing Municipal Key Medical Laboratory Constructional Project Funding (Since 2012); Center of Nanjing Clinical Medicine Tumor (Since 2014). The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.
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25
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Khowal S, Wajid S. Role of Smoking-Mediated molecular events in the genesis of oral cancers. Toxicol Mech Methods 2019; 29:665-685. [DOI: 10.1080/15376516.2019.1646372] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Sapna Khowal
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
| | - Saima Wajid
- Department of Biotechnology, School of Chemical and Life Sciences, Jamia Hamdard, New Delhi, India
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26
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Renzi A, De Bonis P, Morandi L, Lenzi J, Tinto D, Rigillo A, Bettini G, Bellei E, Sabattini S. Prevalence of p53 dysregulations in feline oral squamous cell carcinoma and non-neoplastic oral mucosa. PLoS One 2019; 14:e0215621. [PMID: 30998743 PMCID: PMC6472789 DOI: 10.1371/journal.pone.0215621] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2019] [Accepted: 04/04/2019] [Indexed: 02/08/2023] Open
Abstract
Squamous cell carcinoma is the most common malignant oral tumor in cats. The late presentation is one of the factors contributing to the detrimental prognosis of this disease. The immunohistochemical expression of the p53 tumor suppressor protein has been reported in 24% to 65% of feline oral squamous cell carcinomas, but no study has systematically evaluated in this tumor the presence of p53 encoding gene (TP53) mutations. The aim of this retrospective study was to determine whether p53 immunohistochemistry accurately reflects the mutational status of the TP53 gene in feline oral squamous cell carcinoma. Additionally, the prevalence of p53 dysregulation in feline oral squamous cell carcinoma was compared with that of feline non-neoplastic oral mucosa, in order to investigate the relevance of these dysregulations in cancer development. The association between p53 dysregulations and exposure to environmental tobacco smoke and tumor characteristics was further assessed. Twenty-six incisional biopsies of oral squamous cell carcinomas and 10 cases each of lingual eosinophilic granuloma, chronic gingivostomatitis and normal oral mucosa were included in the study. Eighteen squamous cell carcinomas (69%) expressed p53 and 18 had mutations in exons 5-8 of TP53. The agreement between immunohistochemistry and mutation analysis was 77%. None of non-neoplastic oral mucosa samples had a positive immunohistochemical staining, while one case each of eosinophilic granuloma and chronic gingivostomatitis harbored TP53 mutations. Unlike previously hypothesized, p53 dysregulations were not associated with exposure to environmental tobacco smoke. These results suggest an important role of p53 in feline oral tumorigenesis. Additionally, the immunohistochemical detection of p53 expression appears to reflect the presence of TP53 mutations in the majority of cases. It remains to be determined if the screening for p53 dysregulations, alone or in association with other markers, can eventually contribute to the early detection of this devastating disease.
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Affiliation(s)
- Andrea Renzi
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Paola De Bonis
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Luca Morandi
- “M. Malpighi” Section of Anatomic Pathology, Department of Biomedical and Neuromotor Sciences, Bellaria Hospital, University of Bologna, Bologna, Italy
| | - Jacopo Lenzi
- Section of Hygiene, Public Health and Medical Statistics, Department of Biomedical and Neuromotor Sciences, University of Bologna, Bologna, Italy
| | - Debora Tinto
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Antonella Rigillo
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Giuliano Bettini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Emma Bellei
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
| | - Silvia Sabattini
- Department of Veterinary Medical Sciences, University of Bologna, Ozzano Emilia, Bologna, Italy
- * E-mail:
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Yang XH, Ding L, Fu Y, Chen S, Zhang L, Zhang XX, Huang XF, Lu ZY, Ni YH, Hu QG. p53-positive expression in dysplastic surgical margins is a predictor of tumor recurrence in patients with early oral squamous cell carcinoma. Cancer Manag Res 2019; 11:1465-1472. [PMID: 30863157 PMCID: PMC6388967 DOI: 10.2147/cmar.s192500] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023] Open
Abstract
Purpose This was a retrospective analysis of the impact of the expression of p53 in the dys-plastic surgical margins of early oral squamous cell carcinoma (OSCC) (pT1-2, N0). Patients and methods Seventy-two patients with early oral squamous cell carcinoma (OSCC) were recruited. Margin characteristics were abstracted from the pathology report. Expression of p53 in dysplastic surgical margins was examined with the immunohistochemical method and was correlated with clinicopathological parameters and clinical outcomes. Results Patients with moderate/severe dysplasia had poor local relapse-free survival (RFS) compared to those with mild dysplasia. Thirty-two (44.4%) had at least one p53-positive margin, and there was a significant association between the expression of p53 and tumor recurrence (P<0.001). p53-positive expression was correlated with RFS in patients with dysplastic margins, and its expression in moderate/severe dysplastic groups had a worse RFS than mild dysplastic groups. We also found that the grade of the dysplasia margin was not correlated with RFS in p53-negative groups. Multivariable analysis validated p53 expression in dysplastic surgical margins as an independent risk factor for recurrence. Conclusion Our results validated that p53 expression was an independent risk factor for early OSCC with dysplastic surgical margins. Additional therapy and close follow-up are needed for these patients.
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Affiliation(s)
- Xi-Hu Yang
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Liang Ding
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Yong Fu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Sheng Chen
- Department of Oral Pathology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China
| | - Lei Zhang
- Department of Oral Pathology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China
| | - Xiao-Xin Zhang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Xiao-Feng Huang
- Department of Oral Pathology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China
| | - Zhan-Yi Lu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Yan-Hong Ni
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
| | - Qin-Gang Hu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing, Jiangsu 210000, China,
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Braut T, Krstulja M, Marijić B, Maržić D, Kujundžić M, Brumini G, Vučinić D, Oštarijaš E. Immunohistochemical analysis of vocal cord polyps applying markers of squamous cell carcinogenesis. Pathol Res Pract 2019; 215:144-150. [DOI: 10.1016/j.prp.2018.11.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2018] [Accepted: 11/06/2018] [Indexed: 10/27/2022]
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Yadav P, Malik R, Balani S, Nigam RK, Jain P, Tandon P. Expression of p-16, Ki-67 and p-53 markers in dysplastic and malignant lesions of the oral cavity and oropharynx. J Oral Maxillofac Pathol 2019; 23:224-230. [PMID: 31516228 PMCID: PMC6714257 DOI: 10.4103/jomfp.jomfp_299_18] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Background: Understanding the markers for predicting degree of dysplasia and progression to malignancy can help early identification and prompt treatment of patients with oral cancers. In this study, we aim to identify and characterize different tumor suppressor genes such as p-53 and p-16 and proliferation marker Ki-67 in defining stages of dysplasia of oral mucosa and grading of tumor. Settings and Design: Oral biopsy tissues (for neoplastic lesions) received for histopathological evaluation were included in the study. The sections were processed for H&E staining, and 112 cases were chosen for immunohistochemical study. The data were analyzed by Chi-square and z-tests using software SPSS. Results: We found significant correlation between degree of dysplasia and p-16 immunoexpression with 16.7% of cases showing positivity in oral intraepithelial neoplasia (OIN) I cases as compared to 25% in OIN II and 77.8% in OIN III. Ki-67 immunoexpression correlated significantly with both histological type and grade of tumor with increased expression and intensity seen in malignant cases (66.3%) as compared to benign (10%) and premalignant cases (37%) and higher Ki-67 immunoexpression in poorly differentiated tumors (75%) than well-differentiated tumors (12.2%). Regarding p-53 immunoexpression, positive staining was seen in only malignant cases and premalignant cases. Conclusions: Ki-67 and p-16 can be useful as a marker of degree of dysplasia and transformation to malignancy. Ki-67 can also serve as a marker of degree of differentiation of tumors. Hence, they can serve as important ancillary markers to analyze the transition to carcinoma, dysplasia and progression of tumor.
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Affiliation(s)
- Priyanka Yadav
- Department of Pathology, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Reeni Malik
- Department of Pathology, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Sharda Balani
- Department of Pathology, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | | | - Pramila Jain
- Department of Pathology, Gandhi Medical College, Bhopal, Madhya Pradesh, India
| | - Puneet Tandon
- Department of Pathology, Gandhi Medical College, Bhopal, Madhya Pradesh, India
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Ranganathan K, Kavitha L. Oral epithelial dysplasia: Classifications and clinical relevance in risk assessment of oral potentially malignant disorders. J Oral Maxillofac Pathol 2019; 23:19-27. [PMID: 31110412 PMCID: PMC6503768 DOI: 10.4103/jomfp.jomfp_13_19] [Citation(s) in RCA: 69] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 01/19/2023] Open
Abstract
After more than a decade, the World Health Organization (WHO) published the revised grading system for oral epithelial dysplasia in 2017. The revised classification has changes reflecting our evolution of understanding of the dysplastic process. Although the WHO 2017 three-tier grading system is the gold standard for histological diagnosis of oral potentially malignant disorders, it has certain limitations. Suggestions to overcome these limitations include the use of clinical determinants and molecular markers to supplement the grading system. It has also been suggested that a two-tier system may be more reproducible and clinically translatable for better management. These advances in the understanding of epithelial dysplasia are very important globally and for us in the Indian subcontinent, given the prevalence of habits (tobacco/areca nut) and burden of oral cancer in this part of the world. The following review traces the evolution of the grading system of dysplasia, its relevance and clinical utility.
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Affiliation(s)
- Kannan Ranganathan
- Department of Oral and Maxillofacial Pathology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
| | - Loganathan Kavitha
- Department of Oral and Maxillofacial Pathology, Ragas Dental College and Hospital, Chennai, Tamil Nadu, India
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Amer HW, Waguih HM, El-Rouby DH. Development of field cancerization in the clinically normal oral mucosa of shisha smokers. Int J Dent Hyg 2018; 17:39-45. [PMID: 30113759 DOI: 10.1111/idh.12362] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 06/11/2018] [Accepted: 08/06/2018] [Indexed: 11/30/2022]
Affiliation(s)
- Hatem W. Amer
- Oral and Maxillofacial Pathology Department, Faculty of Dentistry; Cairo University; Cairo Egypt
| | - Hend M. Waguih
- Oral and Maxillofacial Pathology Department, Faculty of Dentistry; Cairo University; Cairo Egypt
| | - Dalia H. El-Rouby
- Oral and Maxillofacial Pathology Department, Faculty of Dentistry; Cairo University; Cairo Egypt
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Zaid K, Azar-Maalouf E, Barakat C, Chantiri M. p53 Overexpression in Oral Mucosa in Relation to Shisha Smoking in Syria and Lebanon. Asian Pac J Cancer Prev 2018; 19:1879-1882. [PMID: 30049200 PMCID: PMC6165666 DOI: 10.22034/apjcp.2018.19.7.1879] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Introduction Shisha (waterpipe) smoking is becoming a very prevalent form of tobacco consumption in the Middle east and use is growing over the world. Smoking-related malignancies have a high genome-wide burden of mutations, including examples in the gene encoding p53. Aims To investigate alterations in p53 immunohistochemical expression in the normal, pre-malignant, malignant oral mucosa in relation to Shisha smoking habits. Materials and Methods A total of 105 paraffin embedded tissue sections of OSCCs (52 smokers,53 non-smokers), 96 of premalignant lesions (48 smokers,48 non-smokers) and 60 normal oral mucosa. Some 30 patients with a history of Shisha smoking daily for more than 5 years were also investigated for mutant expression of p53. Tissue samples were considered positive for p53 staining when any positive cells of epithelial origin could be detected. Results The majority (74.3%) of oral squamous cell carcinomas showed positive staining for p53 expression (83.1% and 65.5% with Shisha smokers and non-smokers, respectively). In the 96 premalignant lesions, about 23% from non-smokers and 41.7% from smokers showed p53 positivity. In normal epithelium, P53 positive cells were noted in 6.6% of non-smokers and 16.6% of smokers. Positive correlations with Shisha smoking were evident for the following groups: WDOSCC, MDOSCC, mild dysplasia G1, moderate dysplasia G2 and in normal mucosa using Student’s t- test, P value<0.05. Conclusion These results strongly suggest that p53 mutations are associated with Shisha smoking in OSCC, pre-malignant lesions and normal mucosa of the oral cavity.
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Affiliation(s)
- Khaled Zaid
- Faculty of Dentistry, Al-Sham Private University, Damascus, Syria.
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Markers of Oral Lichen Planus Malignant Transformation. DISEASE MARKERS 2018; 2018:1959506. [PMID: 29682099 PMCID: PMC5846459 DOI: 10.1155/2018/1959506] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 01/15/2018] [Indexed: 12/17/2022]
Abstract
Oral lichen planus (OLP) is a chronic inflammatory disease of unknown etiology with significant impact on patients' quality of life. Malignant transformation into oral squamous cell carcinoma (OSCC) is considered as one of the most serious complications of the disease; nevertheless, controversy still persists. Various factors seem to be involved in the progression of malignant transformation; however, the mechanism of this process is not fully understood yet. Molecular alterations detected in OLP samples might represent useful biomarkers for predicting and monitoring the malignant progression. In this review, we discuss various studies which highlight different molecules as ominous predictors of OLP malignant transformation.
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Nagao T, Warnakulasuriya S, Sakuma H, Miyabe S, Hasegawa S, Machida J, Suzuki K, Fukano H, Shimozato K, Hashimoto S. p53 and ki67 as biomarkers in determining response to chemoprevention for oral leukoplakia. J Oral Pathol Med 2016; 46:346-352. [PMID: 27605086 DOI: 10.1111/jop.12498] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/18/2016] [Indexed: 11/26/2022]
Abstract
BACKGROUND We performed a randomized controlled chemoprevention trial of oral leukoplakia by administrating a low dose of beta-carotene and vitamin C supplements. 17% of subjects in the experimental arm (4/23) demonstrated clinical remission (complete or partial response) at completion of the trial. The objective of this study was to determine whether baseline expression of p53 and ki67 demonstrated any differences between those responding or not responding to our intervention. A secondary objective was to elucidate any relationship between dietary factors and clinical responses. METHODS For this biomarker study, we included all subjects in the experimental group (n = 23) who were non-smokers. Among 16 who completed the trial for 1 year of supplementation, there were four responders and 12 non-responders at 1-year follow-up. Following immuno-staining for p53 and ki67, the percentage of positive cell nuclei were analyzed as labeling index (LI). RESULTS Expression of p53 was greater in basal layers than in para-basal layers. Mean para-basal LI of p53 was higher in non-responding (26.0) than in responding subjects (11.2) (P = 0.028). ki67 LIs were not significantly different in the two groups. CONCLUSIONS Expression of p53 was inversely related to clinical response to the supplements. Other biomarkers that may recognize subject's responsiveness to chemoprevention require further study.
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Affiliation(s)
- Toru Nagao
- Department of Oral and Maxillofacial Surgery and Stomatology, Okazaki City Hospital, Okazaki, Japan.,Department of Oral Medicine, WHO Collaborating Centre for Oral Cancer/Precancer, King's College London, London, UK.,Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan.,Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
| | - Saman Warnakulasuriya
- Department of Oral Medicine, WHO Collaborating Centre for Oral Cancer/Precancer, King's College London, London, UK
| | - Hidenori Sakuma
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Satoru Miyabe
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Shogo Hasegawa
- Department of Oral and Maxillofacial Surgery, University of Tsukuba Hospital, Ibaragi, Japan
| | - Junichiro Machida
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Koji Suzuki
- Department of Public Health, Fujita Health University School of Health Science, Toyoake, Japan
| | - Hideo Fukano
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Kazuo Shimozato
- Department of Maxillofacial Surgery, Aichi-Gakuin University School of Dentistry, Nagoya, Japan
| | - Shuji Hashimoto
- Department of Hygiene, Fujita Health University School of Medicine, Toyoake, Japan
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Viveka TS, Shyamsundar V, Krishnamurthy A, Ramani P, Ramshankar V. p53 Expression Helps Identify High Risk Oral Tongue Pre- malignant Lesions and Correlates with Patterns of Invasive Tumour Front and Tumour Depth in Oral Tongue Squamous Cell Carcinoma Cases. Asian Pac J Cancer Prev 2016; 17:189-95. [PMID: 26838208 DOI: 10.7314/apjcp.2016.17.1.189] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Oral tongue squamous cell carcinoma (OTSCC) is the most common oral cancer subtype with a maximum propensity for regional spread. Our objective was to study if p53 expression might have any correlation with aggressive patterns of invasion within oral tongue cancers as well as with the histologically identified degree of oral tongue dysplasia. p53 immunoexpression was studied using immunohistochemistry in early staged OTSCCs (n=155), oral tongue dysplasias, (n=29) and oral tongue normal specimens (n=10) and evaluated for correlations with histological and clinicopathological parameters. Our study (n=194) showed a pattern of p53 expression increasing with different grades of tongue dysplasia to different grades of invasive OTSCC (p=0.000). Among the OTSCC tumours, positive p53 expression was seen in 43.2% (67/155) and a higher p53 labelling index was significantly associated with increased Bryne's grade of the tumour invasive front (p=0.039) and increased tumour depth (p=0.018). Among the OTSCC patients with tobacco habits, (n=91), a higher p53 labelling index was significantly associated with increased risk of local recurrence (p=0.025) and with lymphovascular space involvement (p=0.014). Evaluation of p53 through varying degrees of dysplasia to oral tongue cancer indicates that p53 expression is linked to aggressive features of oral tongue cancers and tongue precancers entailing a closer monitoring in positive cases. Among the OTSCCs, p53 expression is associated with tumour aggressiveness correlating with increased grading of invasive tumour front and tumour depth.
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Wang X, Chen S, Chen X, Zhang C, Liang X. Tumor-related markers in histologically normal margins correlate with locally recurrent oral squamous cell carcinoma: a retrospective study. J Oral Pathol Med 2015; 45:83-8. [PMID: 26260282 DOI: 10.1111/jop.12334] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/04/2015] [Indexed: 02/07/2023]
Abstract
BACKGROUND Oral squamous cell carcinoma (OSCC) is characterized by a high rate of local recurrence (LR) even when the surgical margins are considered histopathologically 'normal'. The aim of our study was to determine the relationship between early tumor-related markers detected in histologically normal margins (HNM) and LR as well as disease-free survival in OSCC. METHODS The loss of heterozygosity (LOH) of markers on 9p21 (D9s1747, RPS6, D9s162) and 17p13 (TP53) and the immunostaining results of the corresponding mutant P53, P14, P15, and P16 proteins were assessed and correlated with LR and disease-free survival in 71 OSCC patients who had HNM. RESULTS Fifteen of 71 patients with HNM developed LR. The presence of the following molecular markers in surgical margins was significantly correlated with the development of LR: LOH on chromosome 9p21 (D9s1747 + RPS6 + D9s162), any LOH, P16, and P53 (chi-square test, P < 0.05). The presence of TP53 LOH, 9p21 LOH, any LOH, P15, P16, P53, P16 + D9s1747, and P53 + TP53 had a significant effect on LR (Kaplan-Meier analysis, P < 0.05). P16 + D9s1747 was the most predictive factor using multivariate Cox analyses. CONCLUSIONS Detection of tumor-related markers in histologically 'normal' resection margins may be a useful method for assessing LR in OSCC patients.
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Affiliation(s)
- Xinhong Wang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China.,Key Laboratory for Oral Biomedical Engineering of the Ministry of Education, School & Hospital of Stomatology of Wuhan University, Wuhan, Hubei, China
| | - Si Chen
- Key Laboratory for Oral Biomedical Engineering of the Ministry of Education, School & Hospital of Stomatology of Wuhan University, Wuhan, Hubei, China
| | - Xinming Chen
- Key Laboratory for Oral Biomedical Engineering of the Ministry of Education, School & Hospital of Stomatology of Wuhan University, Wuhan, Hubei, China.,Department of Pathology, School & Hospital of Stomatology of Wuhan University, Wuhan, Hubei, China
| | - Cuicui Zhang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Xueyi Liang
- Key Laboratory of Oral Medicine, Guangzhou Institute of Oral Disease, Stomatology Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
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Toptaş O, Baykul T, Başak K. Does Smoking Affect the Ki67 and p53 Expressions in Asymptomatic Fully Impacted Lower Third Molar Follicles? J Oral Maxillofac Surg 2015; 73:819-26. [PMID: 25544297 DOI: 10.1016/j.joms.2014.10.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Revised: 10/02/2014] [Accepted: 10/04/2014] [Indexed: 11/17/2022]
Affiliation(s)
- Orçun Toptaş
- Assistant Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Abant Izzet Baysal University, Bolu, Turkey.
| | - Timuçin Baykul
- Professor, Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Süleyman Demirel University, Isparta, Turkey
| | - Kayhan Başak
- Pathologist, Department of Pathology, Lütfi Kırdar Kartal Training and Research Hospital, İstanbul, Turkey
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Gissi DB, Gabusi A, Servidio D, Cervellati F, Montebugnoli L. Predictive Role of p53 Protein as a Single Marker or Associated with ki67 Antigen in Oral Leukoplakia: A Retrospective Longitudinal Study. Open Dent J 2015; 9:41-5. [PMID: 25674170 PMCID: PMC4319198 DOI: 10.2174/1874210601509010041] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2014] [Revised: 12/01/2014] [Accepted: 12/17/2014] [Indexed: 01/07/2023] Open
Abstract
Oral leukoplakia (OL) is the most common potentially malignant lesion of the oral cavity. Immunohistochemical analysis of p53 and Ki67 proteins is a simple and inexpensive method widely used in non-dysplastic OLs to reveal lesions predicted to develop oral cancer. The present longitudinal study evaluated the predictive role of p53 and Ki67 proteins alone or in combination in a group of OLs without dysplasia followed for many years. Seventy-seven OL patients referred to our Department between January 2006 and October 2013 underwent histochemical analysis of p53 and Ki67 expression. OLs were considered at high risk in the presence of either high p53 expression (>20%), or low/normal p53 expression associated with high Ki67 expression (Ki67/p53 ratio >3). Seven OLs evolved to OSCC during the follow-up period. Three cases had p53 overexpression, while four had a high Ki67/p53 ratio. Statistical significance was reached when samples with p53 overexpression were combined with samples with high Ki67/p53 ratio (Chi square 5.3; p<0.02). The combined immunohistochemical expression of p53 and Ki67 proteins could be a useful and simple molecular marker for early detection of non-dysplastic OLs at risk of developing oral cancer.
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Affiliation(s)
- Davide B Gissi
- Department of Biomedical and Neuromotor Sciences, Section of Oral Science, University of Bologna, Italy
| | - Andrea Gabusi
- Department of Biomedical and Neuromotor Sciences, Section of Oral Science, University of Bologna, Italy
| | - Dora Servidio
- Department of Biomedical and Neuromotor Sciences, Section of Oral Science, University of Bologna, Italy
| | - Fabio Cervellati
- Department of Biomedical and Neuromotor Sciences, Section of Oral Science, University of Bologna, Italy
| | - Lucio Montebugnoli
- Department of Biomedical and Neuromotor Sciences, Section of Oral Science, University of Bologna, Italy
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Gupta SS, Shetty DC, Urs AB, K S. p53: Revealing the Unusual Suspect: a Study and Field Cancerization Minireview. Indian J Surg Oncol 2014; 5:144-7. [PMID: 25114469 DOI: 10.1007/s13193-014-0305-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2013] [Accepted: 01/20/2014] [Indexed: 11/30/2022] Open
Affiliation(s)
- Sandeep S Gupta
- Department of Oral and Maxillofacial Pathology & Microbiology, Peoples College of Dental Sciences and Research Centre, Bhanpur-Karond Bypass Road, Bhopal, MP India
| | - Devi Charan Shetty
- Department of Oral and Maxillofacial Pathology & Microbiology, ITS College of Dental Studies and Research, Muradnagar, Ghaziabad, UP India
| | - Aadithya B Urs
- Department of Oral and Maxillofacial Pathology & Microbiology, Maulana Azad Dental College, New Delhi, India
| | - Sowmya K
- Peoples College of Dental Sciences and Research Centre, Bhopal, MP India
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40
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Risk prediction for malignant conversion of oral epithelial dysplasia by hypoxia related protein expression. Pathology 2014; 45:478-83. [PMID: 23811806 DOI: 10.1097/pat.0b013e3283632624] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
AIMS Increased aerobic glycolysis is a unique finding in cancers and hypoxia-related proteins are associated with aerobic glycolysis. Therefore, we aimed to investigate whether hypoxia-related proteins can be predictive markers for malignant conversion of oral premalignant lesions with epithelial dysplasia (OED). METHODS Expression of HIF-1α, Glut-1 and CA9 were detected in clinical samples of eight normal oral mucosa, 85 transitional areas of oral squamous cell carcinoma (OSCC) and 28 OED with or without malignant conversion using immunohistochemistry and were also comparatively detected in immortalised human oral keratinocyte (IHOK) and OSCC cell lines under hypoxia using immunoblotting. RESULTS Sequential expression of HIF-1α, Glut-1 and CA9 was found both in transitional areas of OSCC and cell lines of IHOK and OSCC under hypoxia, supporting hypoxia-aerobic glycolysis-acidosis axis. Expression of all proteins showed significant association with malignant conversion of OED and CA9 was an independent risk factor of malignant transformation of OED. But the predictability of malignant transformation was improved when all three proteins were applied together. CONCLUSION High expression of CA9 was an independent predictive marker of malignant conversion. Moreover, the combined application of these three proteins may be useful to assess the risk of malignant conversion of OED.
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41
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Nasr M, Nafee N, Saad H, Kazem A. Improved antitumor activity and reduced cardiotoxicity of epirubicin using hepatocyte-targeted nanoparticles combined with tocotrienols against hepatocellular carcinoma in mice. Eur J Pharm Biopharm 2014; 88:216-25. [PMID: 24813390 DOI: 10.1016/j.ejpb.2014.04.016] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 04/25/2014] [Accepted: 04/28/2014] [Indexed: 12/30/2022]
Abstract
Hepatocellular carcinoma (HCC) is the third most common cause of cancer death worldwide. Epirubicin (EPI), an anthracycline derivative, is one of the main line treatments for HCC. However, serious side effects including cardiomyopathy and congestive heart failure limit its long term administration. Our main goal is to develop a delivery strategy that ensures improved efficacy of the chemotherapeutic agent together with reduced cardiotoxicity. In this context, EPI was loaded in chitosan-PLGA nanoparticles linked with asialofetuin (EPI-NPs) selectively targeting hepatocytes. In an attempt to reduce cardiotoxicity, targeted EPI-NPs were coadministered with tocotrienols. EPI-NPs significantly enhanced the antiproliferative effect compared to free EPI as studied on Hep G2 cell line. Nanoencapsulated EPI injected in HCC mouse model revealed higher p53-mediated apoptosis and reduced angiogenesis in the tumor. Combined therapy of EPI-NPs with tocotrienols further enhanced apoptosis and reduced VEGF level in a dose dependent manner. Assessment of cardiotoxicity indicated that EPI-NPs diminished the high level of proinflammatory cytokine tumor necrosis factor-α (TNF-α) as well as oxidative stress-induced cardiotoxicity as manifested by reduced level of lipid peroxidation products (TBARS) and nitric oxide (NO). EPI-NPs additionally restored the diminished level of superoxide dismutase (SOD) and reduced glutathione (GSH) in the heart. Interestingly, tocotrienols provided both antitumor activity and higher protection against oxidative stress and inflammation induced by EPI in the heart. This hepatocyte-targeted biodegradable nanoparticle/tocotrienol combined therapy represents intriguing therapeutic strategy for EPI providing not only superior efficacy but also higher safety levels.
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Affiliation(s)
- Magda Nasr
- Department of Pharmacology and Experimental Therapeutics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Noha Nafee
- Department of Pharmaceutics, Alexandria University, Alexandria, Egypt.
| | - Hoda Saad
- Department of Pharmacology and Experimental Therapeutics, Medical Research Institute, Alexandria University, Alexandria, Egypt
| | - Amani Kazem
- Department of Pathology, Medical Research Institute, Alexandria University, Alexandria, Egypt
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William WN, Papadimitrakopoulou VA. Optimizing biomarkers and endpoints in oral cancer chemoprevention trials. Cancer Prev Res (Phila) 2013; 6:375-8. [PMID: 23639861 DOI: 10.1158/1940-6207.capr-13-0114] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Chemoprevention, defined as the use of natural, synthetic, or biologic compounds to halt, reverse, or prevent the initial phases of carcinogenesis or the progression of neoplastic cells to cancer, has produced successes, but progress has been slow. Notably, in the field of oral cancer prevention and despite extensive clinical investigations, a standard systemic therapy for patients with oral premalignant lesions is yet to be developed. In view of safety concerns surrounding the use of pharmaceuticals, the use of phytochemicals derived from the diet has been considered but has not yet translated into clinical success. The Bowman Birk Inhibitor (BBI) is a serine protease inhibitor isolated from soybeans possessing domains with trypsin and chymotrypsin inhibitory activity. Encouraging results were previously reported in a phase IIa trial of BBI complex in patients with oral leukoplakia with measurable clinical responses and favorable biomarker changes. In this issue of the journal, the less promising results of the randomized, placebo-controlled phase IIb trial are presented. In this commentary, the complexities involved in defining optimal biomarkers and endpoints for oral cancer prevention trials and the development of dietary chemoprevention agents are discussed.
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Affiliation(s)
- William N William
- Department of Thoracic/Head and Neck Medical Oncology, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd, Unit 432, Houston, TX 77030, USA
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Abdulmajeed AA, Farah CS. Can immunohistochemistry serve as an alternative to subjective histopathological diagnosis of oral epithelial dysplasia? BIOMARKERS IN CANCER 2013; 5:49-60. [PMID: 24179398 PMCID: PMC3798313 DOI: 10.4137/bic.s12951] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Many attempts have been made to identify objective molecular biomarkers to diagnose and prognosticate oral epithelial dysplasia (OED) because histopathological interpretation is subjective and lacks sensitivity. The majority of these efforts describe changes in gene expression at protein level in OED as determined by immunohistochemistry (IHC). However, the literature on these putative markers of oral cancer progression is vast and varied. The main purpose of this article is to review current knowledge on biomarkers of protein expression for OED by IHC approaches. We further discuss these findings in terms of the proposed essential hallmarks of cancer cells to better understand their role in oral oncogenesis.
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Affiliation(s)
- Ahmad A Abdulmajeed
- The University of Queensland, UQ Centre for Clinical Research, Herston, School of Dentistry, Brisbane, Australia
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44
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Ries J, Vairaktaris E, Agaimy A, Bechtold M, Gorecki P, Neukam FW, Nkenke E. The relevance of EGFR overexpression for the prediction of the malignant transformation of oral leukoplakia. Oncol Rep 2013; 30:1149-56. [PMID: 23784518 DOI: 10.3892/or.2013.2545] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Accepted: 05/02/2013] [Indexed: 11/06/2022] Open
Abstract
The present study evaluated the relevance of EGFR overexpression in prediction of malignant transformation of oral leukoplakia (OLP). The retrospective study comprised paraffin-embedded tissue samples of OLP that transformed into oral squamous cell carcinoma (OSCC) (n=53) and tissue samples of OLP that did not transform into OSCC (n=45) during a follow-up period of 5 years. EGFR overexpression was assessed immunohistochemically. A significantly different expression rate of EGFR was determined between transformed and non-transformed OLP (p=0.017). A statistically significant increase of EGFR expression for low dysplasia lesions in group I compared to group II was proven (D0, p=0.013; D1, p=0.049). By calculation of ROC curve and determination of highest Youden index the optimal threshold value [cut-off point (COP) = 44.96] for distinguishing the transformed from non-transformed lesions was estimated (critical expression rate of EGFR). Using the determined COP the correlation between high-risk lesions and the detection of increased expression rates were significant (p=0.001). In the future, the assessment of EGFR overexpression in OLP may allow identifying OLP lesions with an increased risk of malignant transformation that may have been regarded harmless when only the grade of dysplasia had been taken into account.
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Affiliation(s)
- Jutta Ries
- Department of Oral and Maxillofacial Surgery, Erlangen University Hospital, D-91054 Erlangen, Germany
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45
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Varun B, Ranganathan K, Rao UK, Joshua E. Immunohistochemical detection of p53 and p63 in oral squamous cell carcinoma, oral leukoplakia, and oral submucous fibrosis. ACTA ACUST UNITED AC 2013; 5:214-9. [DOI: 10.1111/jicd.12038] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2012] [Accepted: 01/19/2013] [Indexed: 11/29/2022]
Affiliation(s)
- B.R. Varun
- Department of Oral and Maxillofacial Pathology; PMS Institute of Dental Science and Research; Trivandrum Kerala India
| | - K. Ranganathan
- Department of Oral and Maxillofacial Pathology; Ragas Dental College and Hospitals; Uthandi Chennai India
| | - Umadevi K. Rao
- Department of Oral and Maxillofacial Pathology; Ragas Dental College and Hospitals; Uthandi Chennai India
| | - Elizabeth Joshua
- Department of Oral and Maxillofacial Pathology; Ragas Dental College and Hospitals; Uthandi Chennai India
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46
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Bernstein JM, Bernstein CR, West CML, Homer JJ. Molecular and cellular processes underlying the hallmarks of head and neck cancer. Eur Arch Otorhinolaryngol 2012; 270:2585-93. [PMID: 23263268 DOI: 10.1007/s00405-012-2323-x] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2012] [Accepted: 12/11/2012] [Indexed: 12/19/2022]
Abstract
The hallmarks of cancer were updated by Hanahan and Weinberg in 2011. Here we discuss the updated hallmarks in relation to what is known of the molecular and cellular processes underlying the development of head and neck squamous cell carcinoma (HNSCC). Several mechanisms are described, and recent surveys of HNSCC suggest a limited number of mutations, from which more mechanisms may emerge. There are also epigenetic changes to the control of normal processes. More than one mechanism underlies each hallmark. Processes essential to the development of HNSCC need not be essential to the proliferation of the fully developed tumour. Attention is paid to the emerging hallmarks, deregulation of cellular energy metabolism and evasion of immune destruction, and enabling characteristics, genome instability and mutation and tumour-promoting inflammation. HNSCC may adapt to hypoxia, suppress HLA expression, and express Toll-like receptors to facilitate inflammation, which support the proliferation of the tumour.
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Affiliation(s)
- Jonathan M Bernstein
- University Department of Otolaryngology-Head and Neck Surgery, Manchester Royal Infirmary, Oxford Road, Manchester, M13 9WL, UK.
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47
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Gadbail AR, Patil R, Chaudhary M. Co-expression of Ki-67 and p53 protein in ameloblastoma and keratocystic odontogenic tumor. Acta Odontol Scand 2012; 70:529-35. [PMID: 21780975 DOI: 10.3109/00016357.2011.600714] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
OBJECTIVES The purpose of this study was to evaluate the cell proliferation and p53 protein expression in ameloblastomas (ABs), keratocystic odontogenic tumor (KCOT) and dentigerous cyst (DC). METHOD The immunohistochemistry were carried out for Ki-67 and p53 protein expression by using MIB-1 clone and DO-7 clone, respectively, in ABs (n = 23), KCOT (n = 32), DC (n = 30), normal oral mucosa (NOM) (n = 12) and fetal oral mucosa (FOM) (n = 10). RESULTS Both the Ki-67 LI Labeling index (LI) and p53 LI was significantly higher in ABs than KCOT, DC, NOM and FOM. The Ki-67 LI and p53 LI was significantly higher in KCOT as compared to DC. Ki-67 LI and p53 LI was observed in descending order in ABs, KOCT, FOM, NOM and DC. There was significant correlation between Ki-67 expression and p53 expression in ABs, KCOT, DC and NOM. The densely stained p53 positive cells were noted higher in ABs than KCOT. The very few densely p53 positive cells were noted in DC, NOM and FOM. CONCLUSION The results suggest that the p53 protein expression does not necessarily imply an association with malignant disease and/or p53 gene mutation, but a tendency to be expressed in an increasing quantitative and qualitative manner, as the biologic behavior of odontogenic cyst or tumors becomes more aggressive. p53 over-expression may promote cell proliferation in odontogenic lesions. Thus, it can be stipulated that Ki-67 and p53 protein expression can be used as a prognostic marker in odontogenic lesions.
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Affiliation(s)
- Amol Ramchandra Gadbail
- Department of Oral and Maxillofacial Pathology & Microbiology, Sharad Pawar Dental College & Hospital, Datta Meghe Institute of Medical Sciences, Sawangi, Wardha, Maharashtra, India.
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Kalmar JR. Advances in the detection and diagnosis of oral precancerous and cancerous lesions. Oral Maxillofac Surg Clin North Am 2012; 18:465-82. [PMID: 18088846 DOI: 10.1016/j.coms.2006.06.013] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- John R Kalmar
- Section of Oral and Maxillofacial Surgery, Pathology, and Anesthesiology, The Ohio State University College of Dentistry, 305 West 12th Avenue, Columbus, OH 43210, USA
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49
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Humayun S, Prasad VR. Expression of p53 protein and ki-67 antigen in oral premalignant lesions and oral squamous cell carcinomas: An immunohistochemical study. Natl J Maxillofac Surg 2012; 2:38-46. [PMID: 22442608 PMCID: PMC3304220 DOI: 10.4103/0975-5950.85852] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Aim: To study expression of p53 protein and ki-67 antigen in normal, non-dysplastic, dysplastic, premalignant and malignant lesions of the oral mucosa. Materials and Methods: The standard immunohistochemical method along with MIB-1 and DO-7; DAKO antibodies was used to study the expression of p53 and ki-67 in paraffin-embedded tissue specimens. Results: All samples studied showed positive staining for p53 and ki-67. Only one case each from leukoplakia and oral squamous cell carcinoma (OSCC) groups showed negative staining for ki-67. The staining was confined to basal layer in most of the cases except OSCC in which it was seen in all layers. The intensity of staining was moderate to intense. The percentage of p53-positive cells in normal mucosa was 15-25% which was increased to 95% in malignant mucosa. Statistical analysis revealed that the expression of p53 and ki-67 increases as normal oral mucosa becomes dysplastic and undergoes malignant transformation. Conclusion: These results emphasize the potential use of p53 protein and ki-67 antigen as markers of malignant transformation and carcinogenesis in oral premalignant lesions, conditions and OSCC, respectively; and in future they may serve as prognostic tools in the early detection of malignant transformation in oral premalignant lesions and conditions.
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Affiliation(s)
- S Humayun
- Departments of Oral and Maxillofacial Surgery, Maitri College of Dentistry and Research Centre, Durg, India
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50
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Park BJ, Chiosea SI, Grandis JR. Molecular changes in the multistage pathogenesis of head and neck cancer. Cancer Biomark 2012; 9:325-39. [PMID: 22112483 DOI: 10.3233/cbm-2011-0163] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Head and neck squamous cell carcinomas (SCCHN) arise in the mucosa of the upper aerodigestive tract at multiple anatomic sites. While tobacco and alcohol exposure remain the primary risk factors for this malignancy, infection with the human papilloma virus is emerging as a major contributing factor to cancers that arise primarily in the oropharynx. Despite therapeutic advances, survival has remained relatively unchanged over the past few decades. Increased understand of the cellular and molecular biology of these cancers will improve our understanding of this malignancy and facilitate the development of more effective therapeutic strategies. Alterations that have been studied to date include genetic and epigenetic changes. While the epidermal growth factor receptor (EGFR) is the only established molecular therapeutic target, other proteins and pathways are under active investigation to determine their contribution to SCCHN carcinogenesis and progression.
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Affiliation(s)
- Brian J Park
- Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA, USA
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