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Joshi J, Pandit A, Shah F. Nicotine mediated epithelial modulations: An in-vitro evidence. J Oral Biol Craniofac Res 2023; 13:796-800. [PMID: 38111634 PMCID: PMC10726250 DOI: 10.1016/j.jobcr.2023.11.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 10/03/2023] [Accepted: 11/06/2023] [Indexed: 12/20/2023] Open
Abstract
Introduction Nicotine, the main ingredient in tobacco, acts as a key alkaloid of nearly all tobacco products and has been demonstrated to facilitate tumorigenesis and accelerate metastasis. Further traditional tobacco products have shown to give systemic oral effects such as vasoconstriction, inflammation, and delayed wound healing, however; none of the reports have confirmed the significant knowledge of oral sequel of the effect of nicotine on oral epithelial cells. So, the current study aimed to investigate the effect of nicotine on epithelial transformation to a malignant state. Material & methods Through in-vitro experiments, the effects of nicotine on epithelial cells obtained from nicotine never exposed buccal mucosa were analyzed using total count and viability test, proliferation assay, cell cycle distribution assay, and PI3K/MAPK dual pathway activation assay. Result & conclusion MTT assay demonstrated that the proliferation of epithelial cells takes place at a 150 mM concentration of nicotine. Further, we identified the significantly increased cell count and viability in nicotine-exposed cells. Further, cell cycle distribution assay results demonstrated that nicotine forced the epithelial cells to enter the first growth phase. The same influence of nicotine was observed on the PI3K/MAPK dual pathway activation assay where a greater number of nicotine exposed cells showed dual pathway activation. In conclusion, the current study determined the potential mechanism of action of nicotine on oral epithelial cell proliferation through activating the oncogenic pathway. This may help to develop novel therapeutic strategies for the prevention of malignant transformation from smokeless tobacco-caused oral cancer.
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Affiliation(s)
- Jigna Joshi
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Apexa Pandit
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
| | - Franky Shah
- Molecular Diagnostic & Research Lab-3, Department of Cancer Biology, Gujarat Cancer and Research Institute, Ahmedabad, India
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Ma T, Montaner S, Schneider A. Glucose upregulates amphiregulin in oral dysplastic keratinocytes: A potential role in diabetes-associated oral carcinogenesis. J Oral Pathol Med 2023; 52:1004-1012. [PMID: 37817274 PMCID: PMC10841538 DOI: 10.1111/jop.13493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Revised: 08/21/2023] [Accepted: 08/25/2023] [Indexed: 10/12/2023]
Abstract
BACKGROUND Compelling evidence implicates diabetes-associated hyperglycemia as a promoter of tumor progression in oral potentially malignant disorders (OPMD). Yet, information on hyperglycemia-induced cell signaling networks in oral oncology remains limited. Our group recently reported that glucose-rich conditions significantly enhance oral dysplastic keratinocyte viability and migration through epidermal growth factor receptor (EGFR) activation, a pathway strongly linked to oral carcinogenesis. Here, we investigated the basal metabolic phenotype in these cells and whether specific glucose-responsive EGFR ligands mediate these responses. METHODS Cell energy phenotype and lactate concentration were evaluated via commercially available assays. EGFR ligands in response to normal (5 mM) or high (20 mM) glucose were analyzed by quantitative real-time PCR, ELISA, and western blotting. Cell viability and migration assays were performed in the presence of pharmacological inhibitors or RNA interference. RESULTS When compared to normal keratinocytes, basal glycolysis in oral dysplastic keratinocytes was significantly elevated. In highly glycolytic cells, high glucose-activated EGFR increasing viability and migration. Notably, we identified amphiregulin (AREG) as the predominant glucose-induced EGFR ligand. Indeed, enhanced cell migration in response to high glucose was blunted by EGFR inhibitor cetuximab and AREG siRNA. Conversely, AREG treatment under normal glucose conditions significantly increased cell viability, migration, lactate levels, and expression of glycolytic marker pyruvate kinase M2. CONCLUSION These novel findings point to AREG as a potential high glucose-induced EGFR activating ligand in highly glycolytic oral dysplastic keratinocytes. Future studies are warranted to gain more insight into the role of AREG in hyperglycemia-associated OPMD tumor progression.
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Affiliation(s)
- Tao Ma
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland, USA
- Greenebaum Comprehensive Cancer Center, Program in Oncology, School of Medicine, University of Maryland, Baltimore, Maryland, USA
| | - Silvia Montaner
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland, USA
- Greenebaum Comprehensive Cancer Center, Program in Oncology, School of Medicine, University of Maryland, Baltimore, Maryland, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland, USA
- Greenebaum Comprehensive Cancer Center, Program in Oncology, School of Medicine, University of Maryland, Baltimore, Maryland, USA
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Hefni E, Menon D, Ma T, Asiedu EB, Sultan A, Meiller T, Schneider A, Sodhi A, Montaner S. Angiopoietin-like 4 induces head and neck squamous cell carcinoma cell migration through the NRP1/ABL1/PXN pathway. Cell Signal 2023; 108:110697. [PMID: 37169211 PMCID: PMC11129037 DOI: 10.1016/j.cellsig.2023.110697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 04/26/2023] [Accepted: 05/01/2023] [Indexed: 05/13/2023]
Abstract
OBJECTIVES The molecular mechanisms whereby angiopoietin-like 4 (ANGPTL4), a pluripotent protein implicated in cancer development, contributes to head and neck squamous cell carcinoma (HNSCC) growth and dissemination are unclear. MATERIALS AND METHODS We investigated ANGPTL4 expression in human normal oral keratinocytes (NOKs), dysplastic oral keratinocytes (DOKs), oral leukoplakia cells (LEUK1), and HNSCC cell lines, as well as in tissue biopsies from patients with oral dysplasia, and primary and metastatic HNSCC. We further examined the contribution of ANGPTL4 cancer progression in an HNSCC orthotopic floor-of mouth tumor model and the signaling pathways linking ANGPTL4 to cancer cell migration. RESULTS ANGPTL4 expression was upregulated in premalignant DOKs and HNSCC cell lines compared to NOKs and was increased in tissue biopsies from patients with oral dysplasia, as well as in primary and metastatic HNSCC. We also observed that downregulation of ANGPTL4 expression inhibited primary and metastatic cancer growth in an HNSCC orthotopic tumor model. Interestingly, ANGPTL4 binding to the neuropilin1 (NRP1) receptor led to phosphorylation of the focal adhesion protein, paxillin (PXN), and tumor cell migration; this was dependent on the tyrosine kinase ABL1. Treatment with the ABL1 inhibitor, dasatinib and small interfering RNA silencing of NRP1 or ABL1 expression blocked PXN phosphorylation and tumor cell migration. CONCLUSION Our findings suggest an early, sustained, and angiogenesis-independent autocrine role for ANGPTL4 in HNSCC progression and expose ANGPTL4/NRP1/ABL1/PXN as an early molecular marker and vulnerable target for the prevention of HNSCC growth and metastasis.
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Affiliation(s)
- Eman Hefni
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Department of Basic and Clinical Oral Sciences, College of Dentistry, Umm Al Qura University, Makkah, Saudi Arabia
| | - Deepak Menon
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA
| | - Tao Ma
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA
| | - Emmanuel B Asiedu
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA
| | - Ahmed Sultan
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA
| | - Timothy Meiller
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA
| | - Akrit Sodhi
- Wilmer Eye Institute, Johns Hopkins University School of Medicine, Baltimore, MD 21287, USA
| | - Silvia Montaner
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD 21201, USA; Greenebaum Comprehensive Cancer Center, University of Maryland, Baltimore, MD 21201, USA.
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4
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Maan M, Abuzayeda M, Kaklamanos EG, Jamal M, Dutta M, Moharamzadeh K. Molecular insights into the role of electronic cigarettes in oral carcinogenesis. Crit Rev Toxicol 2023; 53:1-14. [PMID: 37051806 DOI: 10.1080/10408444.2023.2190764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
Electronic cigarette (EC) usage or vaping has seen a significant rise in recent years across various parts of the world. They have been publicized as a safe alternative to smoking; however, this is not supported strongly by robust research evidence. Toxicological analysis of EC liquid and aerosol has revealed presence of several toxicants with known carcinogenicity. Oral cavity is the primary site of exposure of both cigarette smoke and EC aerosol. Role of EC in oral cancer is not as well-researched as that of traditional smoking. However, several recent studies have shown that it can lead to a wide range of potentially carcinogenic molecular events in oral cells. This review delineates the oral carcinogenesis potential of ECs at the molecular level, providing a summary of the effects of EC usage on cancer therapy resistance, cancer stem cells (CSCs), immune evasion, and microbiome dysbiosis, all of which may lead to increased tumor malignancy and poorer patient prognosis. This review of literature indicates that ECs may not be as safe as they are perceived to be, however further research is needed to definitively determine their oncogenic potential.
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Affiliation(s)
- Meenu Maan
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
| | - Moosa Abuzayeda
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
| | - Eleftherios G Kaklamanos
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
- School of Dentistry, Aristotle University of Thessaloniki, Thessaloniki, Greece
- School of Dentistry, European University Cyprus, Nicosia, Cyprus
| | - Mohamed Jamal
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
| | - Mainak Dutta
- Department of Biotechnology, BITS Pilani, Dubai Campus, Academic City, Dubai, UAE
| | - Keyvan Moharamzadeh
- Hamdan Bin Mohammed College of Dental Medicine (HBMCDM), Mohammed Bin Rashid University of Medicine and Health Sciences (MBRU), Dubai, UAE
- School of Clinical Dentistry, University of Sheffield, Sheffield, UK
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Soo J, Easwaran M, Erickson‐DiRenzo E. Impact of Electronic Cigarettes on the Upper Aerodigestive Tract: A Comprehensive Review for Otolaryngology Providers. OTO Open 2023; 7:e25. [PMID: 36998560 PMCID: PMC10046796 DOI: 10.1002/oto2.25] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/18/2022] [Accepted: 12/02/2022] [Indexed: 02/19/2023] Open
Abstract
Objective The use and effects of electronic (e)-cigarettes (e-cigs) are particularly relevant for otolaryngology providers as tobacco plays a major role in benign and malignant diseases of the upper aerodigestive tract. This review aims to (1) summarize the recent policies regarding e-cigs and important patterns of use and (2) serve as a comprehensive resource for clinical providers on the known biologic and clinical effects of e-cigs on the upper aerodigestive tract. Data Sources PubMed/MEDLINE. Review Methods We conducted a narrative review on (1) general information on e-cig use and informative findings in the lower respiratory system and a comprehensive review on (2) the effects of e-cigs on cell and animal models and the clinical implications of these products on human health as is relevant to otolaryngology. Conclusions Although e-cigs are likely less harmful than conventional cigarettes, preliminary research on e-cigs suggest several deleterious effects including in the upper aerodigestive tract. Due to this, there has been increased interest in restricting e-cig usage, particularly among the adolescent population, and caution in recommending e-cigs to current smokers. Implications for Practice Chronic e-cig use is likely to have clinical implications. It is critical for otolaryngology providers to be aware of the rapidly changing regulations and use patterns regarding e-cigs and how e-cigs influence human health, particularly with regards to the upper aerodigestive tract, to accurately council patients regarding potential risks and benefits of use.
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Affiliation(s)
- Joanne Soo
- Department of Otolaryngology–Head & Neck Surgery Stanford University School of Medicine Stanford California USA
| | - Meena Easwaran
- Department of Otolaryngology–Head & Neck Surgery Stanford University School of Medicine Stanford California USA
| | - Elizabeth Erickson‐DiRenzo
- Department of Otolaryngology–Head & Neck Surgery Stanford University School of Medicine Stanford California USA
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Wang Y, Zhang X, Wang S, Li Z, Hu X, Yang X, Song Y, Jing Y, Hu Q, Ni Y. Identification of Metabolism-Associated Biomarkers for Early and Precise Diagnosis of Oral Squamous Cell Carcinoma. Biomolecules 2022; 12:biom12030400. [PMID: 35327590 PMCID: PMC8945702 DOI: 10.3390/biom12030400] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2022] [Revised: 02/23/2022] [Accepted: 02/23/2022] [Indexed: 01/27/2023] Open
Abstract
The 5-year survival rate for oral squamous cell carcinoma (OSCC), one of the most common head and neck cancers, has not improved in the last 20 years. Poor prognosis of OSCC is the result of failure in early and precise diagnosis. Metabolic reprogramming, including the alteration of the uptake and utilisation of glucose, amino acids and lipids, is an important feature of OSCC and can be used to identify its biomarkers for early and precise diagnosis. In this review, we summarise how recent findings of rewired metabolic networks in OSCC have facilitated early and precise diagnosis of OSCC.
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Affiliation(s)
- Yuhan Wang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Xiaoxin Zhang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Shuai Wang
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Zihui Li
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Xinyang Hu
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Xihu Yang
- Department of Oral and Maxillofacial Surgery, Affiliated Hospital of Jiangsu University, Zhenjiang 210008, China;
| | - Yuxian Song
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Yue Jing
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
| | - Qingang Hu
- Department of Oral and Maxillofacial Surgery, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China
- Correspondence: (Q.H.); (Y.N.)
| | - Yanhong Ni
- Central Laboratory of Stomatology, Nanjing Stomatological Hospital, Medical School of Nanjing University, Nanjing 210008, China; (Y.W.); (X.Z.); (S.W.); (Z.L.); (X.H.); (Y.S.); (Y.J.)
- Correspondence: (Q.H.); (Y.N.)
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Wisniewski DJ, Ma T, Schneider A. Fatty acid synthase mediates high glucose-induced EGFR activation in oral dysplastic keratinocytes. J Oral Pathol Med 2021; 50:919-926. [PMID: 34402100 DOI: 10.1111/jop.13235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2021] [Revised: 06/28/2021] [Accepted: 07/14/2021] [Indexed: 12/19/2022]
Abstract
BACKGROUND Recent studies point to the epidermal growth factor receptor (EGFR) as a critical mediator of type 2 diabetes mellitus (T2DM)-induced renal, cardiac, and ocular complications. T2DM is considered a systemic contributing factor in oral carcinogenesis. Similarly, increased EGFR gene copy number and protein expression strongly predict tumor progression. Yet, the impact of hyperglycemia on EGFR activity in oral potentially malignant disorders remains unclear. We recently reported that fatty acid synthase (FASN), a key de novo lipogenic enzyme, mediates EGFR activation in nicotine-treated oral dysplastic keratinocytes. While in non-malignant tissues FASN expression is extremely low, it is frequently upregulated in several cancers, including oral squamous cell carcinoma. The present study was carried out to investigate whether high glucose conditions trigger pro-oncogenic responses in oral dysplastic keratinocytes via FASN-mediated EGFR activation. METHODS Cell viability and migration of oral dysplastic keratinocytes were evaluated when exposed to normal (5 mM) or high (20 mM) glucose conditions in the presence of FASN and EGFR inhibitors. Western blotting was also performed to assess changes in FASN protein expression and EGFR activation. RESULTS Oral dysplastic keratinocytes exposed to high glucose led to EGFR activation in a FASN-dependent manner. Likewise, high glucose significantly enhanced cell viability and migration in a FASN/EGFR-mediated fashion. Notably, EGFR inhibition by the anti-EGFR monoclonal antibody cetuximab significantly reduced the proliferation of FASN-overexpressing oral dysplastic keratinocytes. CONCLUSION These novel findings suggest that FASN may act as a key targetable metabolic regulator of glucose-induced EGFR oncogenic signaling in oral potentially malignant disorders.
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Affiliation(s)
- David J Wisniewski
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Tao Ma
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA
| | - Abraham Schneider
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, MD, USA.,Marlene and Stewart Greenebaum Comprehensive Cancer Center, Program in Oncology, School of Medicine, University of Maryland, Baltimore, MD, USA
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Sharma M, Shetty SS, Radhakrishnan R. Novel Pathways and Mechanism of Nicotine-Induced Oral Carcinogenesis. Recent Pat Anticancer Drug Discov 2021; 17:66-79. [PMID: 34365933 DOI: 10.2174/1574892816666210806161312] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Revised: 05/23/2021] [Accepted: 05/24/2021] [Indexed: 11/22/2022]
Abstract
BACKGROUND Smokeless Tobacco (SLT) contains 9 times more nicotine than Smoked Tobacco (SMT). The carcinogenic effect of nicotine is intensified by converting nicotine-to-nicotine-derived Nitrosamines (NDNs). METHODS A review of the literature was conducted with a tailored search strategy to unravel the novel pathways and mechanisms of nicotine-induced oral carcinogenesis. RESULTS Nicotine and NDNs act on nicotinic Acetylcholine Receptors (nAChRs) as agonists. Nicotine facilitates cravings through α4β2nAChR and α7nAChR, via enhanced brain dopamine release. Nicotine binding to nAChR promotes proliferation, migration, invasion, chemoresistance, radioresistance, and metastasis of oral cancer cells. Nicotine binding to α7nAChR on keratinocytes triggers Ras/Raf-1/MEK1/ERK cascade promoting anti-apoptosis and pro-proliferative effects. Furthermore, the nicotine-enhanced metastasis is subdued on nAChR blockade through reduced nuclear localization of p-EGFR. CONCLUSION Protracted exposure to nicotine/NDN augments cancer-stimulatory α7nAChR and desensitizes cancer inhibitory α4β2nAChR. Since nAChRs dictate both addictive and carcinogenic effects of nicotine, it seems counterintuitive to designate nicotine just as an addictive agent devoid of any carcinogenicity.
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Affiliation(s)
- Mohit Sharma
- Department of Oral Pathology, Sudha Rustagi College of Dental Sciences and Research, Faridabad - 121004. India
| | - Smitha S Shetty
- Department of Oral Pathology, Faculty of Dentistry, Melaka Manipal Medical College, Manipal, (Karnataka). India
| | - Raghu Radhakrishnan
- Department of Oral Pathology, Manipal College of Dental Sciences, Manipal, Manipal Academy of Higher Education, Manipal - 576104. India
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Klawinski D, Hanna I, Breslin NK, Katzenstein HM, Indelicato DJ. Vaping the Venom: Oral Cavity Cancer in a Young Adult With Extensive Electronic Cigarette Use. Pediatrics 2021; 147:peds.2020-022301. [PMID: 33926987 DOI: 10.1542/peds.2020-022301] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 10/21/2020] [Indexed: 11/24/2022] Open
Abstract
Squamous cell carcinoma (SCC) of the oral cavity is one of the most common malignancies of the head and neck. Risk factors for the development of SCC include infection with human papillomavirus (HPV), tobacco use, and alcohol use. HPV-positive SCC of the oral cavity is more commonly seen in young adult patients, whereas HPV-negative disease is more prevalent in older patients with histories of alcohol and tobacco use. We describe the case of a young adult with an extensive history of vaping using nicotine-delivery systems who was diagnosed with HPV-negative SCC that was rapidly progressive and fatal.
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Affiliation(s)
- Darren Klawinski
- Division of Pediatric Hematology and Oncology, Nemours Children's Specialty Care and Wolfson Children's Hospital, Jacksonville, Florida.,Department of Pediatrics, College of Medicine - Jacksonville, University of Florida, Jacksonville, Florida; and.,Contributed equally as co-first authors
| | - Issa Hanna
- Division of Pediatric Hematology and Oncology, Nemours Children's Specialty Care and Wolfson Children's Hospital, Jacksonville, Florida.,Department of Pediatrics, College of Medicine - Jacksonville, University of Florida, Jacksonville, Florida; and.,Contributed equally as co-first authors
| | - Nathaniel K Breslin
- Department of Radiation Oncology, University of Florida, Jacksonville, Florida
| | - Howard M Katzenstein
- Division of Pediatric Hematology and Oncology, Nemours Children's Specialty Care and Wolfson Children's Hospital, Jacksonville, Florida;
| | - Daniel J Indelicato
- Department of Radiation Oncology, University of Florida, Jacksonville, Florida
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Isik Andrikopoulos G, Farsalinos K, Poulas K. Electronic Nicotine Delivery Systems (ENDS) and Their Relevance in Oral Health. TOXICS 2019; 7:toxics7040061. [PMID: 31817732 PMCID: PMC6958319 DOI: 10.3390/toxics7040061] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 11/27/2019] [Accepted: 12/04/2019] [Indexed: 02/07/2023]
Abstract
The number and popularity of electronic nicotine delivery systems (ENDS) and especially e-cigarettes (e-cigs) have been increasing in the last decade. Although ENDS owe their popularity to excluding the harmful chemicals that are present in tobacco smoke, there is a debate whether they are safe, regulated, and as harmless as they are assumed to be and have potential unknown long-term effects. Involvement of cigarette smoking to the progression of periodontal diseases, other adverse oral health outcomes, and its detrimental effects to oral health are well-described. ENDS producer companies claim that these products can improve oral health by providing alternatives to smoking. However, the effect of e-cigs on oral health is not fully understood and is still debated among many scientists and clinicians. The number of studies addressing the potential toxic effect of ENDS or e-cig aerosol on oral cells is limited along with the clinical studies which are still preliminary, and their sample size is limited. The long-term effects of inhaled aerosols and the potential synergistic effect of the e-cigs components are not known. It is essential and of utmost importance to determine whether exposure to ENDS aerosol contributes to the progression of periodontal diseases and how it affects periodontal ligament and gingival cells which are believed to be its first targets. This review briefly summarizes the available evidence about the effects of e-cigs on periodontal health including several pathophysiological events, such as oxidative stress, DNA damage, inflammation, cellular senescence, dysregulated repair, and periodontal diseases.
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Affiliation(s)
| | - Konstantinos Farsalinos
- Department of Pharmacy, University of Patras, Rio, 26500 Patras, Greece; (G.I.A.); (K.F.)
- Department of Cardiology, Onassis Cardiac Surgery Center, 17674 Kallithea, Greece
- National School of Public Health, Leof. Alexandras 196, 111521 Athens, Greece
| | - Konstantinos Poulas
- Department of Pharmacy, University of Patras, Rio, 26500 Patras, Greece; (G.I.A.); (K.F.)
- Institute of Research and Innovation NONSMOKE TEAM, Patras Science Park, Stadiou, Platani, Rio, 26504 Patras, Greece
- Correspondence: ; Tel.: +30-2610-962353
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Flach S, Maniam P, Manickavasagam J. E-cigarettes and head and neck cancers: A systematic review of the current literature. Clin Otolaryngol 2019; 44:749-756. [PMID: 31148389 DOI: 10.1111/coa.13384] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 05/02/2019] [Accepted: 05/28/2019] [Indexed: 12/17/2022]
Abstract
BACKGROUND Cigarette smoking is a well-established risk factor for head and neck (HN) cancers. Use of electronic cigarettes (e-cigarettes) is gaining popularity, being advertised as benign alternatives to tobacco. A wide variety of potentially harmful chemical components with variable quantity have been identified in e-liquids and aerosols of e-cigarettes. However, use of e-cigarettes remains controversial due to conflicting evidence. OBJECTIVES We aimed to assess the association between e-cigarettes and HN cancers. We conducted a systematic review to evaluate the literature for evidence on carcinogenic effects of e-cigarettes in the pathogenesis of HN cancers. TYPE OF REVIEW Qualitative systematic review. SEARCH STRATEGY A PubMed/MEDLINE, Cochrane, CINAHL Plus, Trip Medical Database and Web of Science search was done for studies on e-cigarettes and HN cancer. EVALUATION METHOD Abstract review of all articles, full article revision of included studies, data extraction and quality assessment were performed by two independent assessors. RESULTS The literature search resulted in the identification of 359 articles. Eighteen articles were selected for inclusion into the systematic review. The majority were laboratory-based studies, followed by several cohort and case studies, representing low-level evidence. A few reports suggested DNA damage following exposure to e-cigarettes potentially due to increased oxidative stress. Flavoured e-liquids appear to be more harmful. There is variable evidence from clinical studies. CONCLUSIONS Our review outlines potential dangers associated with the use of e-cigarettes and their role in HN cancers. More longitudinal and controlled studies are needed to assess the possible link between e-cigarettes and HN cancers.
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Affiliation(s)
- Susanne Flach
- Department of Otorhinolaryngology and Head & Neck Surgery and Tayside Medical Sciences Centre, Ninewells Hospital, Dundee, UK.,Department of Otorhinolaryngology and Head & Neck Surgery, Hospital of the Ludwig-Maximilians-University, Munich, Germany
| | | | - Jaiganesh Manickavasagam
- Department of Otorhinolaryngology and Head & Neck Surgery and Tayside Medical Sciences Centre, Ninewells Hospital, Dundee, UK
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Sultan AS, Jessri M, Farah CS. Electronic nicotine delivery systems: Oral health implications and oral cancer risk. J Oral Pathol Med 2018; 50:316-322. [PMID: 30507043 DOI: 10.1111/jop.12810] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2018] [Accepted: 12/02/2018] [Indexed: 12/11/2022]
Abstract
There is a paucity of evidence surrounding the potential detrimental effects of electronic nicotine delivery systems (ENDS) for both systemic and oral health. The effects of conventional cigarettes on the development of oral cancer are well known; however, the role of ENDS in oral carcinogenesis is yet to be elucidated. Furthermore, the exponential rise of the use of ENDS by the general public means that dental healthcare providers are more likely to encounter questions on their safety in the oral cavity, and on their effectiveness as a smoking cessation aid. Herein, we review the most up to date literature on the systemic and oral health complications of ENDS. Moreover, evidence-based recommendations on the use of ENDS as a smoking cessation tool within the dental setting are discussed.
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Affiliation(s)
- Ahmed S Sultan
- Department of Oncology and Diagnostic Sciences, School of Dentistry, University of Maryland, Baltimore, Maryland
| | - Maryam Jessri
- Australian Centre for Oral Oncology Research & Education, UWA Dental School, University of Western Australia, Nedlands, Western Australia, Australia
| | - Camile S Farah
- Australian Centre for Oral Oncology Research & Education, UWA Dental School, University of Western Australia, Nedlands, Western Australia, Australia
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