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Sharma A, Anand P, Padwad YS, Maurya SK. Novel 3-Methyleneisoindolinones Diversified via Intramolecular Heck Cyclization Induce Oxidative Stress, Decrease Mitochondrial Membrane Potential, Disrupt Cell Cycle, and Induce Apoptosis in Head and Neck Squamous Cell Carcinoma Cells. ACS OMEGA 2022; 7:45036-45044. [PMID: 36530328 PMCID: PMC9753514 DOI: 10.1021/acsomega.2c05378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 10/19/2022] [Indexed: 06/17/2023]
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth most prevalent cancer in the world and the most prevalent cancer of developing countries. Increased disease burden and a smaller number of approved targeted therapies are a growing concern worldwide. Isoindolinone motifs have been a central part of many pharmacological compounds, and their derivatives possess substantial anticancer potential. However, their anticancer potential against HNSCC has not been well investigated. In the current study, a series of 3-methyleneisoindolinones have been designed and synthesized and their late-stage intramolecular Heck cyclization was achieved to evaluate their anticancer potential against HNSCC cells. Additionally, in silico ADME profiling of synthesized compounds revealed their drug-likeness properties as potential drug candidates. Among the synthesized compounds, 3-bromo-5-methylpyridin-2-yl-3-methyleneisoindolin-1-one, i.e., 3n, with a pyridyl unit exhibited the most significant cytotoxicity against HNSCC cells. The cytotoxic potential of synthesized compounds varied depending on the nature of substituents present and has been well established with structure-activity relationship studies. Further, flow cytometric analysis showed that 3f, 3h, and 3n triggered intracellular oxidative stress, disrupted mitochondrial membrane potential, and interrupted the cell cycle of HNSCC cells in the S-phase and sub-G1 phase. Further, 3f, 3h, and 3n also exhibited pro-apoptotic potential and induced cellular apoptosis in the HNSCC cells. Overall, the findings of this study attributed 3-methyleneisoindolinone chemistry and efficacy evaluation and corroborated their anticancer potential against HNSCC. It will pave the way to further design and optimize novel 3-methyleneisoindolinone as effective antitumor agents, which may provide effective treatment modalities against HNSCC.
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Affiliation(s)
- Arti Sharma
- Chemical
Technology Division, CSIR-Institute of Himalayan
Bioresource Technology (CSIR-IHBT), Palampur 176061, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Prince Anand
- Pharmacology
and Toxicology Laboratory, CSIR-Institute
of Himalayan Bioresource Technology (CSIR-IHBT), Palampur 176061, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Yogendra S. Padwad
- Pharmacology
and Toxicology Laboratory, CSIR-Institute
of Himalayan Bioresource Technology (CSIR-IHBT), Palampur 176061, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sushil K. Maurya
- Chemical
Technology Division, CSIR-Institute of Himalayan
Bioresource Technology (CSIR-IHBT), Palampur 176061, India
- Academy
of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
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Diagnostic classification of cancers using extreme gradient boosting algorithm and multi-omics data. Comput Biol Med 2020; 121:103761. [DOI: 10.1016/j.compbiomed.2020.103761] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 04/10/2020] [Accepted: 04/10/2020] [Indexed: 12/31/2022]
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Stumbrytė-Kaminskienė A, Gudlevičienė Ž, Dabkevičienė D, Mackevičienė I. Combined Effect of HPV and Several Gene SNPs in Laryngeal Cancer. ACTA ACUST UNITED AC 2020; 56:medicina56020081. [PMID: 32079256 PMCID: PMC7074362 DOI: 10.3390/medicina56020081] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2019] [Revised: 02/11/2020] [Accepted: 02/12/2020] [Indexed: 12/15/2022]
Abstract
Background and objectives: Laryngeal squamous cell carcinoma (LSCC) is one of the most common head and neck tumors. The molecular mechanism of LSCC remains unclear. The aim of this study was to evaluate the prevalence of Human papillomavirus (HPV) and single nucleotide polymorphisms (SNPs) of TP53, MDM2, MDM4, MTHFR, CASP8, and CCR5 genes in LSCC, and to assess their correlations with patient survival. Materials and Methods: 49 LSCC patients were enrolled in this study. PCR and qRT-PCR were used to detect, identify, and quantify HPV. SNPs were genotyped using PCR and PCR-RFLP. Results: By analyzing the interactions of the SNPs of the genes with clinical parameters, the majority of patients with lymph node status (N1,2) were identified as carriers of MDM2T/G, CASP8ins/del, CCR5wt/wt SNP. Cluster analysis showed that patients with MDM2T/T SNP survive longer than patients identified as CASP8ins/ins, MTHFRC/C, and MDM4A/A variant carriers; meanwhile, LSCC patients with MDM2T/T polymorphic variant had the best survival. Multivariate analysis showed that HPV-positive patients without metastasis in regional lymph nodes (N0) and harboring CASP8ins/del variant had the best survival. Meanwhile, HPV-negative patients with identified metastasis in lymph nodes (N1 and N2) and CASP8ins/del variant had poor survival. Conclusions: This finding suggests patients survival prognosis and tumor behavior are different according HPV status, SNP variants, and clinical characteristics of the LSCC.
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Affiliation(s)
- Aušra Stumbrytė-Kaminskienė
- Biobank, National Cancer Institute, P. Baublio 3b, LT-08406 Vilnius, Lithuania;
- Correspondence: ; Tel.: +370-52190909
| | - Živilė Gudlevičienė
- Biobank, National Cancer Institute, P. Baublio 3b, LT-08406 Vilnius, Lithuania;
| | - Daiva Dabkevičienė
- Laboratory of Clinical Oncology, National Cancer Institute, P. Baublio 3b, LT-08406 Vilnius, Lithuania;
| | - Irina Mackevičienė
- Department of Head and Neck Surgery and Oncology, National Cancer Institute, Santariškių 1, LT-08660 Vilnius, Lithuania;
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Rao AKDM, Manikandan M, Arunkumar G, Revathidevi S, Vinothkumar V, Arun K, Tiwary BK, Rajkumar KS, Rajaraman R, Munirajan AK. Prevalence of p53 codon 72, p73 G4C14-A4T14 and MDM2 T309G polymorphisms and its association with the risk of oral cancer in South Indians. GENE REPORTS 2017. [DOI: 10.1016/j.genrep.2017.03.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Yu H, Li H, Zhang J, Liu G. Influence of MDM2 polymorphisms on squamous cell carcinoma susceptibility: a meta-analysis. Onco Targets Ther 2016; 9:6211-6224. [PMID: 27785069 PMCID: PMC5067019 DOI: 10.2147/ott.s113417] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023] Open
Abstract
PURPOSE Controversial associations between single-nucleotide polymorphisms (rs2279744, rs937283, rs3730485) of the MDM2 gene and the etiology of squamous cell carcinomas (SCCs) have been reported. This merits further comprehensive assessment. MATERIALS AND METHODS We systematically reviewed the available data and conducted an updated meta-analysis to evaluate the genetic effect of MDM2 polymorphisms in SCC susceptibility, using Stata/SE 12.0 software. RESULTS After screening, 7,987 SCC cases and 12,954 controls from 26 eligible case-control studies were enrolled. Overall, compared with the control group, a significantly increased SCC risk was observed for the MDM2 rs2279744 polymorphism in the Asian population (test of association: odds ratio [OR] 1.12, P=0.027 for G vs T; OR 1.26, P=0.016 for GG vs TT; OR 1.25, P<0.001 for GG vs TT + TG; and OR 1.08, P=0.023 for carrier G vs T). In subgroup analysis by SCC type, a similarly increased esophageal SCC risk was detected (OR 1.19, P<0.001 for G vs T; OR 1.46, P<0.001 for GG vs TT; and OR 1.48, P=0.005 for GG vs TT + TG). Furthermore, MDM2-TP53 double mutation was statistically associated with increased SCC susceptibility overall (OR 1.52, P=0.001), especially in the Asian population (OR 1.49, P=0.022). However, no significant difference between the control and case groups was obtained for MDM2 rs937283 or rs3730485 under any genetic model (all P>0.05). CONCLUSION Our results highlight a positive association between the GG genotype of MDM2 rs2279744 polymorphism and an increased risk of esophageal SCC in the Asian population, which needs to be clarified by more large-scale studies.
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Affiliation(s)
- Huanxin Yu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, People's Republic of China
| | - Haiyan Li
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, People's Republic of China
| | - Jinling Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, People's Republic of China
| | - Gang Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tianjin Huanhu Hospital, Tianjin, People's Republic of China
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Zhuo X, Ye H, Li Q, Xiang Z, Zhang X. Is MDM2 SNP309 Variation a Risk Factor for Head and Neck Carcinoma?: An Updated Meta-Analysis Based on 11,552 Individuals. Medicine (Baltimore) 2016; 95:e2948. [PMID: 26945408 PMCID: PMC4782892 DOI: 10.1097/md.0000000000002948] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Murine double minute-2 (MDM2) is a negative regulator of P53, and its T309G polymorphism has been suggested as a risk factor for a variety of cancers. Increasing evidence has shown the association of MDM2 T309G polymorphism with head and neck carcinoma (HNC) risk. However, the results are inconsistent. Thus, we performed a meta-analysis to elucidate the association. The meta-analysis retrieved studies published up to August 2015, and essential information was extracted for analysis. Separate analyses on ethnicity, source of controls, sample size, detection method, and cancer types were also conducted. Odds ratios (ORs) and their 95% confidence intervals (CIs) were used to estimate the association. Pooled data from 16 case-control studies including 4625 cases and 6927 controls failed to indicate a significant association. However, in the subgroup analysis of sample sizes, an increased risk was observed in the largest sample size group (>1000) under a recessive model (OR = 1.52; 95% CI = 1.08-2.13). Increased risks were also found in the nasopharyngeal cancer in the subgroup analysis of cancer types (GG vs TT: OR = 2.07; 95% CI = 1.38-3.12; dominant model: OR = 1.48; 95% CI = 1.13-1.93; recessive model: OR = 1.76; 95% CI = 1.17-2.65). The results suggest that homozygote GG alleles of MDM2 SNP309 may be a low-penetrant risk factor for HNC, and G allele may confer nasopharyngeal cancer susceptibility.
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Affiliation(s)
- Xianlu Zhuo
- From the Department of Otolaryngology, Southwest Hospital, Third Military Medical University, Chongqing (XZ, QL, ZX, XZ); and Affiliated Hospital of Guiyang Medical University, Guiyang, China (XZ, HY)
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Ach T, Schwarz-Furlan S, Ach S, Agaimy A, Gerken M, Rohrmeier C, Zenk J, Iro H, Brockhoff G, Ettl T. Genomic aberrations of MDM2, MDM4, FGFR1 and FGFR3 are associated with poor outcome in patients with salivary gland cancer. J Oral Pathol Med 2015; 45:500-9. [PMID: 26661925 DOI: 10.1111/jop.12394] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2015] [Indexed: 12/12/2022]
Abstract
Fibroblast growth factor receptor 1 and 3 (FGFR1, FGFR3) impact on tissue homoeostasis, embryonic development and carcinogenesis. Murine double minute protein 4 (MDM4) and mouse double minute 2 homologue (MDM2) are regulators of p53-protein and may be the origin of an apoptosis overpowering cascade. A collective of 266 carcinomas of salivary glands were investigated for MDM2, MDM4, FGFR1 and FGFR3 aberrations by fluorescence in situ hybridization (FISH). The results were matched with clinicopathological parameters and with expression of PTEN and p53. MDM2 gene amplification (n = 9) and chromosomal aberrations (trisomy, n = 47; high polysomy, n = 7) are linked to high-grade malignancy (P < 0.001), lymph node metastasis (P = 0.001), advanced tumour size (P = 0.013) and stage (P < 0.001), gender (P = 0.002) and age (P = 0.001). MDM4 gene amplification (n = 19) and chromosomal aberrations (trisomy, n = 34; high polysomy, n = 31) are correlated to high-grade malignancy (P < 0.001), lymph node metastasis (P = 0.008), advanced tumour size (P = 0.039), stage (P = 0.004) and loss of PTEN (P < 0.001). Only, high-grade malignancy (P < 0.001), lymph node metastasis (P = 0.036) and advanced tumour stage (P = 0.025) are associated with FGFR3 amplification (n = 1) or chromosomal aberrations (low polysomy, n = 61; high polysomy, n = 55) but not with MDM4 alterations. FGFR1 amplifications (n = 5) and chromosomal aberrations (trisomy, n = 38; high polysomy, n = 30) are associated with high-grade malignancy (P < 0.001), advanced tumour size (P = 0.026) and stage (P = 0.004), gender (P = 0.016) and age (P = 0.023). Aberrations of MDM2, MDM4, FGFR1 and FGFR3 correlate with aggressive tumour growth and nodal metastasis. MDM2 (P < 0.001), MDM4 (P = 0.005) and FGFR3 (P = 0.006) alterations are associated with worse overall survival of patients with salivary gland cancer.
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Affiliation(s)
- Tobias Ach
- Department of Oral and Maxillofacial Surgery, University of Regensburg, Regensburg, Germany
| | | | - Stephanie Ach
- Department of Oral and Maxillofacial Surgery, University of Regensburg, Regensburg, Germany
| | - Abbas Agaimy
- Department of Pathology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Michael Gerken
- Center of Tumor Registry, University of Regensburg, Regensburg, Germany
| | - Christian Rohrmeier
- Department of Otorhinolaryngology, University of Regensburg, Regensburg, Germany
| | - Johannes Zenk
- Department of Otorhinolaryngology, Hospital of Augsburg, Augsburg, Germany
| | - Heinrich Iro
- Department of Otorhinolaryngology, University of Erlangen-Nuremberg, Erlangen, Germany
| | - Gero Brockhoff
- Department of Gynecology and Obstetrics, University of Regensburg, Regensburg, Germany
| | - Tobias Ettl
- Department of Oral and Maxillofacial Surgery, University of Regensburg, Regensburg, Germany
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Hori Y, Miyabe K, Yoshida M, Nakazawa T, Hayashi K, Naitoh I, Shimizu S, Kondo H, Nishi Y, Umemura S, Kato A, Ohara H, Inagaki H, Joh T. Impact of TP53 codon 72 and MDM2 SNP 309 polymorphisms in pancreatic ductal adenocarcinoma. PLoS One 2015; 10:e0118829. [PMID: 25734904 PMCID: PMC4348172 DOI: 10.1371/journal.pone.0118829] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 12/02/2014] [Indexed: 12/16/2022] Open
Abstract
Single-nucleotide polymorphisms (SNPs) of TP53 (codon 72, rs1042522) and MDM2 promoter (SNP 309, rs2279744) have been associated with risk for various human cancers. However, studies analyzing these polymorphisms in pancreatic ductal adenocarcinoma (PDAC) are lacking. We investigated TP53 codon 72 and MDM2 SNP 309 polymorphisms in 32 patients with PDAC, 16 patients with chronic pancreatitis (CP), and 32 normal controls, using formalin-fixed paraffin-embedded tissue. We also examined TP53 and MDM2 protein immunohistochemistry (IHC) to assess the involvement of these differences in malignant transformation and disease progression. TP53 Pro/Pro genotype was significantly more frequent in PDAC patients than in controls (65.6 vs. 15.6%, p < 0.001) and no significant difference was found between CP patients (37.5%) and controls. In MDM2 SNP 309, there were no significant differences among the three groups. Based on the Kaplan-Meier analysis, overall survival was significantly shorter in MDM2 G/G genotypes compared with other genotypes (G/T and T/T) (359 vs. 911 days, p = 0.016) whereas no significant differences in TP53 genotypes were observed (638 vs. 752 days, p = 0.471). Although TP53 IHC was frequent in PDAC patients (53.1%), TP53 and MDM2 protein expression was not correlated with polymorphisms. Our study demonstrated TP53 codon 72 polymorphism is potentially a genetic predisposing factor while MDM2 SNP 309 polymorphism might be useful in predicting survival outcome.
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Affiliation(s)
- Yasuki Hori
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Katsuyuki Miyabe
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Michihiro Yoshida
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takahiro Nakazawa
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Kazuki Hayashi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Itaru Naitoh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shuya Shimizu
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiromu Kondo
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Yuji Nishi
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Shuichiro Umemura
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Akihisa Kato
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hirotaka Ohara
- Department of Community-based Medical Education, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Hiroshi Inagaki
- Department of Pathology and Molecular Diagnostics, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
| | - Takashi Joh
- Department of Gastroenterology and Metabolism, Nagoya City University Graduate School of Medical Sciences, Nagoya, Japan
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Singhal P, Hussain S, Thakur N, Batra S, Salhan S, Bhambani S, Bharadwaj M. Association ofMDM2andp53Polymorphisms with the Advancement of Cervical Carcinoma. DNA Cell Biol 2013; 32:19-27. [PMID: 23210739 DOI: 10.1089/dna.2012.1718] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
Affiliation(s)
- Pallavi Singhal
- Divison of Molecular Genetics & Biochemistry, Institute of Cytology & Preventive Oncology (ICMR), Noida, India
| | - Showket Hussain
- Divison of Molecular Genetics & Biochemistry, Institute of Cytology & Preventive Oncology (ICMR), Noida, India
| | - Nisha Thakur
- Divison of Molecular Genetics & Biochemistry, Institute of Cytology & Preventive Oncology (ICMR), Noida, India
| | - Swaraj Batra
- Department of Obstetrics & Gynecology, LNJP Hospital, New Delhi, India
| | - Sudha Salhan
- Department of Obstetrics & Gynecology, Safdarjung Hospital, New Delhi, India
| | - Suresh Bhambani
- Division of Cytopathology, Institute of Cytology Preventive Oncology (ICMR), Noida, India
| | - Mausumi Bharadwaj
- Divison of Molecular Genetics & Biochemistry, Institute of Cytology & Preventive Oncology (ICMR), Noida, India
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Denaro N, Lo Nigro C, Natoli G, Russi EG, Adamo V, Merlano MC. The Role of p53 and MDM2 in Head and Neck Cancer. ISRN OTOLARYNGOLOGY 2011; 2011:931813. [PMID: 23724261 PMCID: PMC3658475 DOI: 10.5402/2011/931813] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2011] [Accepted: 09/29/2011] [Indexed: 01/17/2023]
Abstract
Head and neck cancer is a complex disorder that includes mostly squamous cell carcinomas that can develop in the throat, larynx, nose, sinuses, and mouth. Etiopathogenesis is due to tobacco and alcohol consumption and to infection by human papillomavirus (HPV) type 16/18. Tumors often develop within preneoplastic fields of genetically altered cells. Most head and neck cancers result from multistep accumulation of genetic alterationsm resulting in clonal outgrowth of transformed cells. These DNA changes are caused by a variety of mechanisms like endogenous mutations and exogenous mutations. Dysregulated molecular pathway includes alterations of critical inhibitor of cyclin CDK complexes, inactivating mutations of p53 gene, and activation of oncogenes and growth factors. This paper attempts to review the role of p53 and MDM2 genetic aberrations and pathways in head and neck cancer.
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Affiliation(s)
- N Denaro
- Oncology Department, ASO Santa Croce e Carle Cuneo, Via Michele Coppino 21, 12100 Cuneo, Italy
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Abstract
PURPOSE Mouse double minute 4 (MDM4), a homolog of MDM2, is one of the key negative regulators of p53, and its amplification or overexpression contributes to carcinogenesis by inhibiting the p53 tumor suppressor activity. We investigated the association between MDM4 polymorphisms and the risk of squamous cell carcinoma of the head and neck (SCCHN). METHODS We genotyped three MDM4 tagging polymorphisms, two in the 3' untranslated region (rs11801299G>A and rs10900598G>T) and one in intron 1 (rs1380576C>G), in a case-control study of 1075 non-Hispanic white SCCHN patients and 1079 cancer-free controls, and evaluated their associations with SCCHN risk. RESULTS Although none of these three polymorphisms individually had a statistically significant effect on the risk of SCCHN, nor did their combined number of putative risk genotypes (i.e. rs11801299GG, rs1380576CG+GG, and rs10900598GG) [odds ratio (OR)=1.16; 95% confidence interval (95% CI) =0.93-1.45], we found that individuals with 1-3 risk genotypes had statistically significant increased risk of oropharyngeal cancer (OR=1.32; 95% CI=1.00-1.73), particularly for those with T1-2 stage (OR=1.40; 95% CI=1.02-1.94), those with regional lymph node metastases (N1-3) (OR=1.44; 95% CI=1.07-1.95), and those with late stages (III and IV) (OR=1.34; 95% CI=1.01-1.77). CONCLUSION These results suggest that the joint effect of MDM4 variants may contribute to the risk of oropharyngeal cancer in non-Hispanic whites. Additional studies are warranted to unravel whether the particular stage distribution of oropharyngeal cancer with the strongest association (T1-2, N1-3, and III-IV) is a possible link with human papillomavirus-related oropharyngeal cancers.
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Wo X, Han D, Sun H, Liu Y, Meng X, Bai J, Chen F, Yu Y, Jin Y, Fu S. MDM2 SNP309 contributes to tumor susceptibility: a meta-analysis. J Genet Genomics 2011; 38:341-50. [PMID: 21867960 DOI: 10.1016/j.jgg.2011.07.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2011] [Revised: 07/18/2011] [Accepted: 07/18/2011] [Indexed: 02/07/2023]
Abstract
The potentially functional polymorphism, SNP309, in the promoter region of MDM2 gene has been implicated in cancer risk, but individual published studies showed inconclusive results. To obtain a more precise estimate of the association between MDM2 SNP309 and risk of cancer, we performed a meta-analysis of 70 individual studies in 59 publications that included 26,160 cases with different types of tumors and 33,046 controls. Summary odds ratios (OR) and corresponding 95% confidence intervals (CIs) were estimated using fixed- and random-effects models when appropriate. Overall, the variant genotypes were associated with a significantly increased cancer risk for all cancer types in different genetic models (GG vs. TT: OR, 1.123; 95% CI, 1.056-1.193; GG/GT vs. TT: OR, 1.028; 95% CI, 1.006-1.050). In the stratified analyses, the increased risk remained for the studies of most types of cancers, Asian populations, and hospital- /population-based studies in different genetic models, whereas significantly decreased risk was found in prostate cancer (GG vs. TT: OR, 0.606; 95% CI, 0.407-0.903; GG/GT vs. TT: OR, 0.748; 95% CI, 0.579-0.968). In conclusion, the data of meta-analysis suggests that MDM2 SNP309 is a potential biomarker for cancer risk.
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Affiliation(s)
- Xiaoman Wo
- Laboratory of Medical Genetics, Harbin Medical University, China
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Kolokythas A, Miloro M, Zhou X. Review of MicroRNA Proposed Target Genes in Oral Cancer. Part II. EJOURNAL OF ORAL MAXILLOFACIAL RESEARCH 2011; 2:e2. [PMID: 24421989 PMCID: PMC3886061 DOI: 10.5037/jomr.2011.2202] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/16/2011] [Accepted: 04/13/2011] [Indexed: 02/07/2023]
Abstract
Objectives Cancer is the product of alterations in oncogenes, tumour suppressor genes
and most recently microRNA genes not as a single event or single change but
rather as a multistep process. The role of microRNA genes in carcinogenesis
is recently explored and appears to be an early event in the pathogenesis of
this as well as other disease processes and occurs via gene regulation by
their own products, the microRNAs. The purpose of this article was to review
the literature concerning MicroRNA proposed target genes in oral cancer. Material and Methods A review of the available literature from 2000 to 2011 regarding the
potential roles assumed by microRNAs in oral cancer was undertaken using
PubMed, Medline, Scholar Google and Scopus. Keywords for the search were:
microRNA and oral cancer and target genes, microRNA deregulation and oral
cancer, microRNA and carcinogenesis in the head and neck/oral cavity.
English language full length articles were reviewed. Results Several microRNAs deregulated in oral cancer have been functionally validated
and their exact target genes have been identified. Furthermore the
carcinogenesis pathways impacted by these alterations has been proposed for
some of these microRNAs. Conclusions The expanding knowledge of specific roles of certain microRNAs is further
contributing to our understanding of the complexity of tumour progression
and behaviour. Consideration of this information and incorporation into
treatment modalities through targeted therapy could potentially enhance our
abilities to improve outcome especially when other established therapies
have failed.
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Affiliation(s)
- Antonia Kolokythas
- Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago USA. ; Center of Molecular Biology and Oral Diseases, College of Dentistry, University of Illinois at Chicago USA. ; Cancer Center, University of Illinois at Chicago USA
| | - Michael Miloro
- Department of Oral and Maxillofacial Surgery, University of Illinois at Chicago USA
| | - Xiaofeng Zhou
- Center of Molecular Biology and Oral Diseases, College of Dentistry, University of Illinois at Chicago USA. ; Department of Periodontics, College of Dentistry, University of Illinois at Chicago USA
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Yu H, Huang YJ, Liu Z, Wang LE, Li G, Sturgis EM, Johnson DG, Wei Q. Effects of MDM2 promoter polymorphisms and p53 codon 72 polymorphism on risk and age at onset of squamous cell carcinoma of the head and neck. Mol Carcinog 2011; 50:697-706. [PMID: 21656578 DOI: 10.1002/mc.20806] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2011] [Revised: 04/19/2011] [Accepted: 05/03/2011] [Indexed: 12/22/2022]
Abstract
Both p53 tumor suppressor and murine double minute 2 (MDM2) oncoprotein are crucial in carcinogenesis. We hypothesized that MDM2 promoter single nucleotide polymorphisms (SNPs) SNP309 T > G, A2164G, and p53 codon 72 are associated with risk and age at onset of squamous cell carcinoma of head and neck (SCCHN). We genotyped these SNPs in a study of 1,083 Caucasian SCCHN cases and 1,090 cancer-free controls. Although none of these SNPs individually had a significant effect on risk of SCCHN, nor did their combined putative risk genotypes (i.e., MDM2 SNP309 GT + GG, 2164 AA, and p53 codon 72 CC), we found that individuals with two to three risk genotypes had significantly increased risk of non-oropharyngeal cancer (OR = 1.42; 95% CI = 1.07-1.88). This increased risk was more pronounced among young subjects, men, smokers, and drinkers. In addition, female patients carrying the MDM2 SNP309 GT and GG genotypes showed a 3-yr (56.7 yr) and 9-yr (51.2 yr) earlier age at onset of non-oropharyngeal cancer (P(trend) = 0.007), respectively, compared with those carrying the TT genotype (60.1 yr). The youngest age (42.5 yr) at onset of non-oropharyngeal cancer was observed in female patients with the combined MDM2 SNP309 GG and p53 codon 72 CC genotypes. The findings suggest that MDM2 SNP309, A2164G, and p53 codon 72 SNPs may collectively contribute to non-oropharyngeal cancer risk and that MDM2 SNP309 individually or in combination with p53 codon 72 may accelerate the development of non-oropharyngeal cancer in women. Further studies with large sample sizes are warranted to validate these results.
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Affiliation(s)
- Hongping Yu
- Department of Epidemiology, The University of Texas M. D. Anderson Cancer Center, Houston, 77030, USA
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15
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Vlatković N, El-Fert A, Devling T, Ray-Sinha A, Gore DM, Rubbi CP, Dodson A, Jones AS, Helliwell TR, Jones TM, Boyd MT. Loss of MTBP expression is associated with reduced survival in a biomarker-defined subset of patients with squamous cell carcinoma of the head and neck. Cancer 2011; 117:2939-50. [PMID: 21692053 DOI: 10.1002/cncr.25864] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2010] [Revised: 10/27/2010] [Accepted: 11/22/2010] [Indexed: 01/12/2023]
Abstract
BACKGROUND Recent genetic studies have implicated p53 mutation as a significant risk factor for therapeutic failure in squamous cell carcinoma of the head and neck (SCCHN). However, in a recent meta-analysis in the literature of p53 from major anatomical subsites (larynx, oral cavity, oropharynx/hypopharynx), associations between patient survival and p53 status were ambiguous. METHODS The authors examined a cohort of SCCHNs using a previously developed biomarker combination that likely predicts p53 status based on p53/MDM2 expression levels determined by immunohistochemistry (IHC). In addition, the authors generated and validated an antibody to MTBP (an MDM2 binding protein that alters p53/MDM2 homeostasis and may contribute to metastatic suppression) and have incorporated data for MTBP expression into the current analyses. RESULTS Analysis of expression data for p53 and MDM2 in 198 SCCHN patient samples revealed that the biomarker combination p53 + ve/MDM2-low (likely indicative of p53 mutation) was significantly associated with reduced overall survival (log-rank P = .035) and was an independent prognostic factor (P = .013; HR, 1.705; 95% CI, 1.12-2.60); thus, these data were compatible with earlier genetic analyses. By using IHC for p53 and MDM2 to dichotomize patients, the authors found that loss of MTBP expression was significantly associated with reduced survival (log-rank P = .004) and was an independent prognostic factor (P = .004; HR, 2.78; 95% CI, 1.39-5.54) in p53 + ve/MDM2-low patients. CONCLUSIONS These results represent the first examination of MTBP expression in human tissues and provide evidence for a p53 status-dependent role for MTBP in suppressing disease progression in SCCHN patients as well as confirming a role for p53 pathway function in delaying disease progression.
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Grochola LF, Zeron-Medina J, Mériaux S, Bond GL. Single-nucleotide polymorphisms in the p53 signaling pathway. Cold Spring Harb Perspect Biol 2010; 2:a001032. [PMID: 20452958 PMCID: PMC2857176 DOI: 10.1101/cshperspect.a001032] [Citation(s) in RCA: 79] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
The p53 tumor suppressor pathway is central both in reducing cancer frequency in vertebrates and in mediating the response of commonly used cancer therapies. This article aims to summarize and discuss a large body of evidence suggesting that the p53 pathway harbors functional inherited single-nucleotide polymorphisms (SNPs) that affect p53 signaling in cells, resulting in differences in cancer risk and clinical outcome in humans. The insights gained through these studies into how the functional p53 pathway SNPs could help in the tailoring of cancer therapies to the individual are discussed. Moreover, recent work is discussed that suggests that many more functional p53 pathway SNPs are yet to be fully characterized and that a thorough analysis of the functional human genetics of this important tumor suppressor pathway is required.
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Affiliation(s)
- Lukasz F Grochola
- Ludwig Institute for Cancer Research, University of Oxford, Oxford, OX3 7DQ, United Kingdom
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17
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Germline mutations and polymorphisms in the origins of cancers in women. JOURNAL OF ONCOLOGY 2010; 2010:297671. [PMID: 20111735 PMCID: PMC2810468 DOI: 10.1155/2010/297671] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/23/2009] [Accepted: 11/14/2009] [Indexed: 12/18/2022]
Abstract
Several female malignancies including breast, ovarian, and endometrial cancers can be characterized based on known somatic and germline mutations. Initiation and propagation of tumors reflect underlying genomic alterations such as mutations, polymorphisms, and copy number variations found in genes of multiple cellular pathways. The contributions of any single genetic variation or mutation in a population depend on its frequency and penetrance as well as tissue-specific functionality. Genome wide association studies, fluorescence in situ hybridization, comparative genomic hybridization, and candidate gene studies have enumerated genetic contributors to cancers in women. These include p53, BRCA1, BRCA2, STK11, PTEN, CHEK2, ATM, BRIP1, PALB2, FGFR2, TGFB1, MDM2, MDM4 as well as several other chromosomal loci. Based on the heterogeneity within a specific tumor type, a combination of genomic alterations defines the cancer subtype, biologic behavior, and in some cases, response to therapeutics. Consideration of tumor heterogeneity is therefore important in the critical analysis of gene associations in cancer.
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18
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Grochola LF, Vazquez A, Bond EE, Würl P, Taubert H, Müller TH, Levine AJ, Bond GL. Recent natural selection identifies a genetic variant in a regulatory subunit of protein phosphatase 2A that associates with altered cancer risk and survival. Clin Cancer Res 2009; 15:6301-8. [PMID: 19773383 DOI: 10.1158/1078-0432.ccr-09-0797] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE A regulated p53-dependent stress response is crucial in suppressing tumor formation and mediating the response to commonly used cancer therapeutics. However, little is known about the human, inherited genetics of this important signaling pathway. EXPERIMENTAL DESIGN Studies of human genetic variants in the p53 tumor suppressor gene and MDM2 oncogene have shown that single nucleotide polymorphisms (SNP) can affect p53 signaling, confer cancer risk, and alter outcome, and also suggest that the pathway is under evolutionary selective pressure. Here, we attempt to accelerate the identification of functional p53 pathway SNPs by incorporating these characteristics into an analysis of 142 genes that are known to affect p53 signaling. RESULTS We report that a genomic scan for recent natural selection denotes that of the 142 genes studied, the PPP2R5E gene that encodes a regulatory subunit of the tumor suppressing protein phosphatase 2A resides in a naturally selected genomic region. We go on to show that a selected SNP in PPP2R5E (epsilon-SNP2) associates with significant allelic differences in the onset (up to 19.2 years; P = 0.0002) and risk (odds ratio, up to 8.1; P = 0.0009) of soft tissue sarcoma development, as well as overall survival (relative risk, up to 3.04; P = 0.026). CONCLUSIONS The PPP2R5E gene is identified as harboring genetic variants that can affect human cancer and are possibly under evolutionary selection pressure.
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Affiliation(s)
- Lukasz F Grochola
- Ludwig Institute for Cancer Research, University of Oxford, Oxford, United Kingdom
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19
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Altered tumor formation and evolutionary selection of genetic variants in the human MDM4 oncogene. Proc Natl Acad Sci U S A 2009; 106:10236-41. [PMID: 19497887 DOI: 10.1073/pnas.0901298106] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
A large body of evidence strongly suggests that the p53 tumor suppressor pathway is central in reducing cancer frequency in vertebrates. The protein product of the haploinsufficient mouse double minute 2 (MDM2) oncogene binds to and inhibits the p53 protein. Recent studies of human genetic variants in p53 and MDM2 have shown that single nucleotide polymorphisms (SNPs) can affect p53 signaling, confer cancer risk, and suggest that the pathway is under evolutionary selective pressure (1-4). In this report, we analyze the haplotype structure of MDM4, a structural homolog of MDM2, in several different human populations. Unusual patterns of linkage disequilibrium (LD) in the haplotype distribution of MDM4 indicate the presence of candidate SNPs that may also modify the efficacy of the p53 pathway. Association studies in 5 different patient populations reveal that these SNPs in MDM4 confer an increased risk for, or early onset of, human breast and ovarian cancers in Ashkenazi Jewish and European cohorts, respectively. This report not only implicates MDM4 as a key regulator of tumorigenesis in the human breast and ovary, but also exploits for the first time evolutionary driven linkage disequilibrium as a means to select SNPs of p53 pathway genes that might be clinically relevant.
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Childs G, Fazzari M, Kung G, Kawachi N, Brandwein-Gensler M, McLemore M, Chen Q, Burk RD, Smith RV, Prystowsky MB, Belbin TJ, Schlecht NF. Low-level expression of microRNAs let-7d and miR-205 are prognostic markers of head and neck squamous cell carcinoma. THE AMERICAN JOURNAL OF PATHOLOGY 2009; 174:736-45. [PMID: 19179615 DOI: 10.2353/ajpath.2009.080731] [Citation(s) in RCA: 271] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Small noncoding microRNAs (miRNAs) have been shown to be abnormally expressed in every tumor type examined. The importance of miRNAs as potential cancer prognostic indicators is underscored by their involvement in the regulation of basic cellular processes such as cell proliferation, differentiation, and apoptosis. In this study, miRNA expression profiles of head and neck squamous cell carcinoma (HNSCC) tumor and adjacent normal tissue were examined by microarray analysis and validated by quantitative TaqMan real-time polymerase chain reaction. Using TaqMan real-time polymerase chain reaction we measured the quantitative associations between a subset of miRNAs identified on microarrays in primary tumors at diagnosis and cancer survival in a cohort of 104 HNSCC patients undergoing treatment with curative intent. The majority of miRNAs exhibiting altered expression in primary human HNSCC tumors (including miR-1, miR-133a, miR-205, and let-7d) show lower expression levels relative to normal adjacent tissue. In contrast, hsa-miR-21 is frequently overexpressed in human HNSCC tumors. Using univariate and multivariable statistical models we show that low levels of hsa-miR205 are significantly associated with loco-regional recurrence independent of disease severity at diagnosis and treatment. In addition, combined low levels of hsa-miR-205 and hsa-let-7d expression in HNSCC tumors are significantly associated with poor head and neck cancer survival Our results show that miRNA expression levels can be used as prognostic markers of head and neck cancer.
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Affiliation(s)
- Geoffrey Childs
- Department of Pathology, Albert Einstein College of Medicine, 1300 Morris Park Ave., Bronx, NY 10461, USA.
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Chen XL, Gao SL, Zhao L. Research progress in roles of murine double minute 2 gene in the gastrointestinal tumor. Shijie Huaren Xiaohua Zazhi 2008; 16:2877-2882. [DOI: 10.11569/wcjd.v16.i25.2877] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Murine double minute 2 (MDM2), an oncogene discovered in recent years, can enhance cell survival activity, prolong cell survival duration, promote cell proliferation and stimulate tumor growth. In recent years, it was shown that MDM2 participated in the genesis and development of various tumors. In addition, MDM2 is associated with the invasion, metastasis and poor prognosis of malignant tumors, especially gastrointestinal tumors such as esophageal cancer, gastric cancer, colon cancer, liver cancer, etc. So it is significant to study the relationship between MDM2 and gastrointestinal tumors for tumor prevention and treatment. In combination with domestic and overseas literatures, this article provides a brief review of the research progress in the roles of MDM2 in the genesis, development and metastasis of gastrointestinal tumors.
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