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Liu Y, Huang N, Qiao X, Gu Z, Wu Y, Li J, Wu C, Li B, Li L. Knockdown of PGC1α suppresses dysplastic oral keratinocytes proliferation through reprogramming energy metabolism. Int J Oral Sci 2023; 15:37. [PMID: 37661238 PMCID: PMC10475463 DOI: 10.1038/s41368-023-00242-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 09/05/2023] Open
Abstract
Oral potentially malignant disorders (OPMDs) are precursors of oral squamous cell carcinoma (OSCC). Deregulated cellular energy metabolism is a critical hallmark of cancer cells. Peroxisome proliferator-activated receptor-gamma coactivator-1 alpha (PGC1α) plays vital role in mitochondrial energy metabolism. However, the molecular mechanism of PGC1α on OPMDs progression is less unclear. Therefore, we investigated the effects of knockdown PGC1α on human dysplastic oral keratinocytes (DOKs) comprehensively, including cell proliferation, cell cycle, apoptosis, xenograft tumor, mitochondrial DNA (mtDNA), mitochondrial electron transport chain complexes (ETC), reactive oxygen species (ROS), oxygen consumption rate (OCR), extracellular acidification rate (ECAR), and glucose uptake. We found that knockdown PGC1α significantly inhibited the proliferation of DOKs in vitro and tumor growth in vivo, induced S-phase arrest, and suppressed PI3K/Akt signaling pathway without affecting cell apoptosis. Mechanistically, downregulated of PGC1α decreased mtDNA, ETC, and OCR, while enhancing ROS, glucose uptake, ECAR, and glycolysis by regulating lactate dehydrogenase A (LDHA). Moreover, SR18292 (an inhibitor of PGC1α) induced oxidative phosphorylation dysfunction of DOKs and declined DOK xenograft tumor progression. Thus, our work suggests that PGC1α plays a crucial role in cell proliferation by reprograming energy metabolism and interfering with energy metabolism, acting as a potential therapeutic target for OPMDs.
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Affiliation(s)
- Yunkun Liu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Nengwen Huang
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xianghe Qiao
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Zhiyu Gu
- Department of Preventive and Pediatric Dentistry, Hospital of Stomatology, Zunyi Medical University, Zunyi, China
| | - Yongzhi Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jinjin Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Chengzhou Wu
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Bo Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Orthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
| | - Longjiang Li
- State Key Laboratory of Oral Diseases & National Center for Stomatology & National Clinical Research Center for Oral Diseases & Department of Head and Neck Oncology, West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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2
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Khan MM, Frustino J, Villa A, Nguyen BC, Woo SB, Johnson WE, Varelas X, Kukuruzinska M, Monti S. Total RNA sequencing reveals gene expression and microbial alterations shared by oral pre-malignant lesions and cancer. Hum Genomics 2023; 17:72. [PMID: 37542347 PMCID: PMC10403884 DOI: 10.1186/s40246-023-00519-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 07/25/2023] [Indexed: 08/06/2023] Open
Abstract
Head and neck cancers are a complex malignancy comprising multiple anatomical sites, with cancer of the oral cavity ranking among the deadliest and the most disfiguring cancers globally. Oral cancer (OC) constitutes a subset of head and neck cancer cases, presenting primarily as tobacco- and alcohol-associated oral squamous cell carcinoma (OSCC), with a 5-year survival rate of ~ 65%, partly due to the lack of early detection and effective treatments. OSCC arises from premalignant lesions (PMLs) in the oral cavity through a multi-step series of clinical and histopathological stages, including varying degrees of epithelial dysplasia. To gain insights into the molecular mechanisms associated with the progression of PMLs to OSCC, we profiled the whole transcriptome of 66 human PMLs comprising leukoplakia with dysplasia and hyperkeratosis non-reactive (HkNR) pathologies, alongside healthy controls and OSCC. Our data revealed that PMLs were enriched in gene signatures associated with cellular plasticity, such as partial EMT (p-EMT) phenotypes, and with immune response. Integrated analyses of the host transcriptome and microbiome further highlighted a significant association between differential microbial abundance and PML pathway activity, suggesting a contribution of the oral microbiome toward PML evolution to OSCC. Collectively, this study reveals molecular processes associated with PML progression that may help early diagnosis and disease interception at an early stage.
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Affiliation(s)
- Mohammed Muzamil Khan
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, 75 E. Newton St. E609, Boston, MA, 02118, USA
- Bioinformatics Graduate Program, Boston University, Boston, MA, USA
| | - Jennifer Frustino
- Department of Dentistry/Oral Oncology & Maxillofacial Prosthetics, Erie County Medical Center, Buffalo, NY, USA
| | - Alessandro Villa
- Oral Medicine, Oral Oncology and Dentistry, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, USA
- Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Bach-Cuc Nguyen
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, 700 Albany Street, W-201, Boston, MA, 02118, USA
| | - Sook-Bin Woo
- Division of Oral Medicine and Dentistry, Brigham and Women's Hospital and Harvard University, Boston, MA, USA
| | - William Evan Johnson
- Division of Infectious Disease, Center for Data Science, Rutgers New Jersey Medical School, Newark, NJ, 07103, USA
| | - Xaralabos Varelas
- Department of Biochemistry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
| | - Maria Kukuruzinska
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, 700 Albany Street, W-201, Boston, MA, 02118, USA.
| | - Stefano Monti
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, 75 E. Newton St. E609, Boston, MA, 02118, USA.
- Bioinformatics Graduate Program, Boston University, Boston, MA, USA.
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA.
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3
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Khan MM, Frustino J, Villa A, Nguyen BC, Woo SB, Johnson WE, Varelas X, Kukuruzinska M, Monti S. Total RNA sequencing reveals gene expression and microbial alterations shared by oral pre-malignant lesions and cancer. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.03.24.534064. [PMID: 36993637 PMCID: PMC10055367 DOI: 10.1101/2023.03.24.534064] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/19/2023]
Abstract
UNLABELLED Head and neck cancers are a complex malignancy comprising multiple anatomical sites, with cancer of the oral cavity ranking among the deadliest and most disfiguring cancers globally. Oral cancer (OC) constitutes a subset of head and neck cancer cases, presenting primarily as tobacco-and alcohol-associated oral squamous cell carcinoma (OSCC), with a 5-year survival rate of ∼65%, partly due to the lack of early detection and effective treatments. OSCC arises from premalignant lesions (PMLs) in the oral cavity through a multi-step series of clinical and histopathological stages, including varying degrees of epithelial dysplasia. To gain insights into the molecular mechanisms associated with the progression of PMLs to OSCC, we profiled the whole transcriptome of 66 human PMLs comprising leukoplakia with dysplasia and hyperkeratosis non-reactive (HkNR) pathologies, alongside healthy controls and OSCC. Our data revealed that PMLs were enriched in gene signatures associated with cellular plasticity, such as partial EMT (p-EMT) phenotypes, and with immune response. Integrated analyses of the host transcriptome and microbiome further highlighted a significant association between differential microbial abundance and PML pathway activity, suggesting a contribution of the oral microbiome towards PML evolution to OSCC. Collectively, this study reveals molecular processes associated with PML progression that may help early diagnosis and disease interception at an early stage. AUTHOR SUMMARY Patients harboring oral premalignant lesions (PMLs) have an increased risk of developing oral squamous cell carcinoma (OSCC), but the underlying mechanisms driving transformation of PMLs to OSCC remain poorly understood. In this study, Khan et al., analyzed a newly generated dataset of gene expression and microbial profiles of oral tissues from patients diagnosed with PMLs from differing histopathological groups, including hyperkeratosis not reactive ( HkNR ) and dysplasia, comparing these profiles with OSCC and normal oral mucosa. Significant similarities between PMLs and OSCC were observed, with PMLs manifesting several cancer hallmarks, including oncogenic and immune pathways. The study also demonstrates associations between the abundance of multiple microbial species and PML groups, suggesting a potential contribution of the oral microbiome to the early stages of OSCC development. The study offers insights into the nature of the molecular, cellular and microbial heterogeneity of oral PMLs and suggests that molecular and clinical refinement of PMLs may provide opportunities for early disease detection and interception.
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Affiliation(s)
- Mohammed Muzamil Khan
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
- Bioinformatics Graduate Program, Boston University, Boston, MA, USA
| | - Jennifer Frustino
- Department of Dentistry/Oral Oncology & Maxillofacial Prosthetics, Erie County Medical Center, Buffalo, NY, USA
| | - Alessandro Villa
- Oral Medicine, Oral Oncology and Dentistry, Miami Cancer Institute, Baptist Health South Florida, Miami, FL, and Department of Orofacial Sciences, University of California San Francisco, San Francisco, CA, USA
| | - Bach-Cuc Nguyen
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, USA
| | - Sook-Bin Woo
- Division of Oral Medicine and Dentistry, Brigham and Women’s Hospital and Harvard University, Boston, MA, USA
| | - William Evan Johnson
- Division of Infectious Disease, Center for Data Science, Rutgers New Jersey Medical School, Newark, NJ, 07103, USA
| | - Xaralabos Varelas
- Department of Biochemistry, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
| | - Maria Kukuruzinska
- Department of Translational Dental Medicine, Boston University School of Dental Medicine, Boston, MA, USA
| | - Stefano Monti
- Section of Computational Biomedicine, Boston University Chobanian & Avedisian School of Medicine, Boston, MA, USA
- Bioinformatics Graduate Program, Boston University, Boston, MA, USA
- Department of Biostatistics, Boston University School of Public Health, Boston, MA, USA
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Chitturi Suryaprakash RT, Shearston K, Farah CS, Fox SA, Iqbal MM, Kadolsky U, Zhong X, Saxena A, Kujan O. A Novel Preclinical In Vitro 3D Model of Oral Carcinogenesis for Biomarker Discovery and Drug Testing. Int J Mol Sci 2023; 24:ijms24044096. [PMID: 36835505 PMCID: PMC9967961 DOI: 10.3390/ijms24044096] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Revised: 02/13/2023] [Accepted: 02/15/2023] [Indexed: 02/22/2023] Open
Abstract
This study aimed to develop an in vitro three-dimensional (3D) cell culture model of oral carcinogenesis for the rapid, scalable testing of chemotherapeutic agents. Spheroids of normal (HOK) and dysplastic (DOK) human oral keratinocytes were cultured and treated with 4-nitroquinoline-1-oxide (4NQO). A 3D invasion assay using Matrigel was performed to validate the model. RNA was extracted and subjected to transcriptomic analysis to validate the model and assess carcinogen-induced changes. The VEGF inhibitors pazopanib and lenvatinib were tested in the model and were validated by a 3D invasion assay, which demonstrated that changes induced by the carcinogen in spheroids were consistent with a malignant phenotype. Further validation was obtained by bioinformatic analyses, which showed the enrichment of pathways associated with hallmarks of cancer and VEGF signalling. Overexpression of common genes associated with tobacco-induced oral squamous cell carcinoma (OSCC), such as MMP1, MMP3, MMP9, YAP1, CYP1A1, and CYP1B1, was also observed. Pazopanib and lenvatinib inhibited the invasion of transformed spheroids. In summary, we successfully established a 3D spheroid model of oral carcinogenesis for biomarker discovery and drug testing. This model is a validated preclinical model for OSCC development and would be suitable for testing a range of chemotherapeutic agents.
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Affiliation(s)
| | - Kate Shearston
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Camile S. Farah
- Australian Centre for Oral Oncology Research and Education, Nedlands, WA 6009, Australia
| | - Simon A. Fox
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia
- Harry Perkins Institute of Medical Research, QEII Medical Centre and Centre for Medical Research, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Muhammad Munir Iqbal
- Genomics WA, Harry Perkins Institute of Medical Research, Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Ulrich Kadolsky
- Genomics WA, Harry Perkins Institute of Medical Research, Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Xiao Zhong
- Genomics WA, Harry Perkins Institute of Medical Research, Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Alka Saxena
- Genomics WA, Harry Perkins Institute of Medical Research, Telethon Kids Institute, The University of Western Australia, Nedlands, WA 6009, Australia
| | - Omar Kujan
- UWA Dental School, The University of Western Australia, Nedlands, WA 6009, Australia
- Correspondence:
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Mehterov N, Sacconi A, Pulito C, Vladimirov B, Haralanov G, Pazardjikliev D, Nonchev B, Berindan-Neagoe I, Blandino G, Sarafian V. A novel panel of clinically relevant miRNAs signature accurately differentiates oral cancer from normal mucosa. Front Oncol 2022; 12:1072579. [PMID: 36531016 PMCID: PMC9753689 DOI: 10.3389/fonc.2022.1072579] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2022] [Accepted: 11/09/2022] [Indexed: 08/27/2023] Open
Abstract
INTRODUCTION Although a considerable body of knowledge has been accumulated regarding the early diagnosis and treatment of oral squamous cell carcinoma (OSCC), its survival rates have not improved over the last decades. Thus, deciphering the molecular mechanisms governing oral cancer will support the development of even better diagnostic and therapeutic strategies. Previous studies have linked aberrantly expressed microRNAs (miRNAs) with the development of OSCC. METHODS We combined bioinformatical and molecular methods to identify miRNAs with possible clinical significance as biomarkers in OSCC. A set of 10 miRNAs were selected via an in silico approach by analysing the 3'untranslated regions (3'UTRs) of cancer-related mRNAs such as FLRT2, NTRK3, and SLC8A1, TFCP2L1 and etc. RT-qPCR was used to compare the expression of in silico identified miRNAs in OSCC and normal tissues (n=32). RESULTS Among the screened miRNAs, miR-21-5p (p < 0.0001), miR-93-5p (p < 0.0197), miR-146b-5p (p <0.0012), miR-155-5p (p < 0.0001), miR-182-5p (p < 0.0001) were significantly overexpressed, whereas miR-133b (p < 0.05) was significantly downregulated in OSCC tissues, a scenario confirmed in two additional OSCC validation cohorts: Regina Elena National Cancer Institute (IRE cohort, N=74) and The Cancer Genome Atlas Data Portal (TCGA cohort, N=354). Initial stage tumors (T1, T2) expressed significantly higher levels of miR-133b (p < 0.0004) compared to more advanced ones (T3, T4). Also, we identified miR-93-5p (p < 0.0003), miR-133b (p < 0.0017) and miR-155-5p (p < 0.0004) as correlated with HPV-induced OSCC. The high expression of these 6 miRNAs as a signature predicted shorter disease-free survival (DFS) and could efficiently distinguish OSCC cases from healthy controls with areas under the curve (AUC) of 0.91 with sensitivity and specificity of 0.98 and 0.6, respectively. Further target identification analysis revealed enrichment of genes involved in FOXO, longevity, glycan biosynthesis and p53 cancer-related signaling pathways. Also, the selected targets were underexpressed in OSCC tissues and showed clinical significance related to overall survival (OS) and DFS. DISCUSSION Our results demonstrate that a novel panel consisting of miR-21-5p, miR-93-5p, miR-133b, miR-146b-5p, miR-155-5p and miR-182-5p could be used as OSCC-specific molecular signature with diagnostic and prognostic significance related to OS and DFS.
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Affiliation(s)
- Nikolay Mehterov
- Department of Medical Biology, Medical University-Plovdiv, Plovdiv, Bulgaria
- Research Institute, Medical University-Plovdiv, Plovdiv, Bulgaria
| | - Andrea Sacconi
- UOSD Clinical Trial Center, Biostatistics and Bioinformatics, IRCCS Regina Elena National Cancer Institute, Rome, Italy
| | - Claudio Pulito
- Translational Oncology Research Unit, Department of Research, Advanced Diagnostic, and Technological Innovation, IRCCS, Regina Elena National Cancer Institute, Rome, Italy
| | - Boyan Vladimirov
- Department of Maxillofacial Surgery, Medical University-Plovdiv, Plovdiv, Bulgaria
| | - Georgi Haralanov
- Department of Maxillofacial Surgery, Medical University-Plovdiv, Plovdiv, Bulgaria
| | | | - Boyan Nonchev
- Department of Endocrinology, Medical University-Plovdiv, Plovdiv, Bulgaria
| | - Ioana Berindan-Neagoe
- Research Center for Functional Genomics, Biomedicine and Translational Medicine, “Iuliu Hatieganu” University of Medicine and Pharmacy, Cluj-Napoca, Romania
| | - Giovanni Blandino
- Translational Oncology Research Unit, Department of Research, Advanced Diagnostic, and Technological Innovation, IRCCS, Regina Elena National Cancer Institute, Rome, Italy
| | - Victoria Sarafian
- Department of Medical Biology, Medical University-Plovdiv, Plovdiv, Bulgaria
- Research Institute, Medical University-Plovdiv, Plovdiv, Bulgaria
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Gan CP, Lee BKB, Lau SH, Kallarakkal TG, Zaini ZM, Lye BKW, Zain RB, Sathasivam HP, Yeong JPS, Savelyeva N, Thomas G, Ottensmeier CH, Ariffin H, Cheong SC, Lim KP. Transcriptional analysis highlights three distinct immune profiles of high-risk oral epithelial dysplasia. Front Immunol 2022; 13:954567. [PMID: 36119104 PMCID: PMC9479061 DOI: 10.3389/fimmu.2022.954567] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Accepted: 08/12/2022] [Indexed: 11/20/2022] Open
Abstract
Oral potentially malignant disorders (OPMD) are precursors of oral squamous cell carcinoma (OSCC), and the presence of oral epithelial dysplasia (OED) in OPMD confers an increased risk of malignant transformation. Emerging evidence has indicated a role for the immune system in OPMD disease progression; however, the underlying immune mechanisms remain elusive. In this study, we used immune signatures established from cancer to delineate the immune profiles of moderate and severe OED, which are considered high-risk OPMD. We demonstrated that moderate and severe OEDs exhibit high lymphocyte infiltration and upregulation of genes involved in both immune surveillance (major histocompatibility complex-I, T cells, B cells and cytolytic activity) and immune suppression (immune checkpoints, T regulatory cells, and tumor-associated macrophages). Notably, we identified three distinct subtypes of moderate and severe OED: immune cytotoxic, non-cytotoxic and non-immune reactive. Active immune surveillance is present in the immune cytotoxic subtype, whereas the non-cytotoxic subtype lacks CD8 immune cytotoxic response. The non-immune reactive subtype showed upregulation of genes involved in the stromal microenvironment and cell cycle. The lack of T cell infiltration and activation in the non-immune reactive subtype is due to the dysregulation of CTNNB1, PTEN and JAK2. This work suggests that moderate and severe OED that harbor the non-cytotoxic or non-immune reactive subtype are likely to progress to cancer. Overall, we showed that distinct immune responses are present in high-risk OPMD, and revealed targetable pathways that could lead to potential new approaches for non-surgical management of OED.
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Affiliation(s)
- Chai Phei Gan
- Cancer Immunology and Immunotherapy Unit, Cancer Research Malaysia, Subang Jaya, Malaysia
- Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Bernard Kok Bang Lee
- Cancer Immunology and Immunotherapy Unit, Cancer Research Malaysia, Subang Jaya, Malaysia
| | - Shin Hin Lau
- Cancer Research Center, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Malaysia
| | - Thomas George Kallarakkal
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
- Oral Cancer Research and Coordinating Center, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Zuraiza Mohamad Zaini
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Bryan Kit Weng Lye
- Cancer Immunology and Immunotherapy Unit, Cancer Research Malaysia, Subang Jaya, Malaysia
| | - Rosnah Binti Zain
- Oral Cancer Research and Coordinating Center, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
- Faculty of Dentistry, Malaysian Allied Health Sciences Academy (MAHSA) University, Jenjarom, Malaysia
| | - Hans Prakash Sathasivam
- Cancer Research Center, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, Shah Alam, Malaysia
| | - Joe Poh Sheng Yeong
- Integrative Biology for Theranostics, Institute of Molecular Cell Biology, Agency for Science, Technology and Research (A*STAR), Singapore, Singapore
- Department of Anatomical Pathology, Singapore General Hospital, Singapore, Singapore
| | - Natalia Savelyeva
- Head and Neck Center, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Gareth Thomas
- Cancer Sciences, University of Southampton, Southampton, United Kingdom
| | - Christian H. Ottensmeier
- Head and Neck Center, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, United Kingdom
- Cancer Sciences, University of Southampton, Southampton, United Kingdom
| | - Hany Ariffin
- Department of Paediatrics, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Sok Ching Cheong
- Cancer Immunology and Immunotherapy Unit, Cancer Research Malaysia, Subang Jaya, Malaysia
- Department of Oral and Maxillofacial Clinical Sciences, Faculty of Dentistry, University of Malaya, Kuala Lumpur, Malaysia
| | - Kue Peng Lim
- Cancer Immunology and Immunotherapy Unit, Cancer Research Malaysia, Subang Jaya, Malaysia
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7
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Sathasivam HP, Sloan P, Thomson PJ, Robinson M. The clinical utility of contemporary oral epithelial dysplasia grading systems. J Oral Pathol Med 2021; 51:180-187. [PMID: 34797585 DOI: 10.1111/jop.13262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Revised: 10/26/2021] [Accepted: 11/10/2021] [Indexed: 11/28/2022]
Abstract
INTRODUCTION Clinical management of oral potentially malignant disorders relies on accurate histopathological assessment of the presence and grade of oral epithelial dysplasia. Whilst adjunctive laboratory tests have provided useful prognostic information, none are in widespread clinical use. This study was performed to assess the clinical utility of two contemporary oral epithelial dysplasia grading systems. METHODS Patients were identified from a clinical database. Oral epithelial dysplasia grading was performed by three oral and maxillofacial pathologists blinded to clinical outcome using the WHO 2017 system and a binary classification. The primary outcome measure was the development of oral squamous cell carcinoma, termed 'malignant transformation'. RESULTS 131 cases satisfied the inclusion criteria, of which 23 underwent malignant transformation. There was substantial inter-rater agreement between the study pathologists for both grading systems, measured using kappa statistics (κ = 0.753-0.784). However, there was only moderate agreement between the consensus WHO 2017 dysplasia grade for the study against the original grade assigned by a pool of six pathologists in the context of the clinical service (κ = 0.491). Higher grade categories correlated with an increased risk of developing cancer using both grading systems. CONCLUSION This study demonstrates that the WHO 2017 and binary grading systems are reproducible between calibrated pathologists and that consensus reporting is likely to improve the consistency of grading. The WHO and binary systems were prognostically comparable. We recommend that institutions implement consensus oral epithelial dysplasia grading and prospectively audit the effectiveness of risk stratifying their patients with oral potentially malignant disorders. (249 words).
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Affiliation(s)
- Hans Prakash Sathasivam
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK.,Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health, Setia Alam, Malaysia
| | - Philip Sloan
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK.,AMLo Biosciences, Newcastle upon Tyne, UK
| | - Peter J Thomson
- College of Medicine and Dentistry, James Cook University, Queensland, Australia
| | - Max Robinson
- School of Dental Sciences, Newcastle University, Newcastle upon Tyne, UK.,Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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8
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Sathasivam HP, Kist R, Sloan P, Thomson P, Nugent M, Alexander J, Haider S, Robinson M. Predicting the clinical outcome of oral potentially malignant disorders using transcriptomic-based molecular pathology. Br J Cancer 2021; 125:413-421. [PMID: 33972745 PMCID: PMC8329212 DOI: 10.1038/s41416-021-01411-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 04/06/2021] [Accepted: 04/16/2021] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND This study was undertaken to develop and validate a gene expression signature that characterises oral potentially malignant disorders (OPMD) with a high risk of undergoing malignant transformation. METHODS Patients with oral epithelial dysplasia at one hospital were selected as the 'training set' (n = 56) whilst those at another hospital were selected for the 'test set' (n = 66). RNA was extracted from formalin-fixed paraffin-embedded (FFPE) diagnostic biopsies and analysed using the NanoString nCounter platform. A targeted panel of 42 genes selected on their association with oral carcinogenesis was used to develop a prognostic gene signature. Following data normalisation, uni- and multivariable analysis, as well as prognostic modelling, were employed to develop and validate the gene signature. RESULTS A prognostic classifier composed of 11 genes was developed using the training set. The multivariable prognostic model was used to predict patient risk scores in the test set. The prognostic gene signature was an independent predictor of malignant transformation when assessed in the test set, with the high-risk group showing worse prognosis [Hazard ratio = 12.65, p = 0.0003]. CONCLUSIONS This study demonstrates proof of principle that RNA extracted from FFPE diagnostic biopsies of OPMD, when analysed on the NanoString nCounter platform, can be used to generate a molecular classifier that stratifies the risk of malignant transformation with promising clinical utility.
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Affiliation(s)
- Hans Prakash Sathasivam
- grid.1006.70000 0001 0462 7212School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK ,Cancer Research Centre, Institute for Medical Research, National Institutes of Health, Ministry of Health Malaysia, Setia Alam, Malaysia
| | - Ralf Kist
- grid.1006.70000 0001 0462 7212School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK ,grid.1006.70000 0001 0462 7212Newcastle University Biosciences Institute, Newcastle University Centre for Cancer, Newcastle upon Tyne, UK
| | - Philip Sloan
- grid.1006.70000 0001 0462 7212School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK ,grid.420004.20000 0004 0444 2244Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Peter Thomson
- grid.194645.b0000000121742757Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Hong Kong, Hong Kong SAR
| | - Michael Nugent
- grid.416726.00000 0004 0399 9059Oral and Maxillofacial Surgery, Sunderland Royal Hospital, Sunderland, UK
| | - John Alexander
- grid.18886.3f0000 0001 1271 4623The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Syed Haider
- grid.18886.3f0000 0001 1271 4623The Breast Cancer Now Toby Robins Research Centre, The Institute of Cancer Research, London, UK
| | - Max Robinson
- grid.1006.70000 0001 0462 7212School of Dental Sciences, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, UK ,grid.420004.20000 0004 0444 2244Department of Cellular Pathology, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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