1
|
Soares-Lima SC, Mehanna H, Camuzi D, de Souza-Santos PT, Simão TDA, Nicolau-Neto P, Almeida Lopes MDS, Cuenin C, Talukdar FR, Batis N, Costa I, Dias F, Degli Esposti D, Boroni M, Herceg Z, Ribeiro Pinto LF. Upper Aerodigestive Tract Squamous Cell Carcinomas Show Distinct Overall DNA Methylation Profiles and Different Molecular Mechanisms behind WNT Signaling Disruption. Cancers (Basel) 2021; 13:3014. [PMID: 34208581 PMCID: PMC8234055 DOI: 10.3390/cancers13123014] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2021] [Revised: 05/27/2021] [Accepted: 06/08/2021] [Indexed: 12/28/2022] Open
Abstract
Upper aerodigestive tract (UADT) tumors present different biological behavior and prognosis, suggesting specific molecular mechanisms underlying their development. However, they are rarely considered as single entities (particularly head and neck subsites) and share the most common genetic alterations. Therefore, there is a need for a better understanding of the global DNA methylation differences among UADT tumors. We performed a genome-wide DNA methylation analysis of esophageal (ESCC), laryngeal (LSCC), oral (OSCC) and oropharyngeal (OPSCC) squamous cell carcinomas, and their non-tumor counterparts. The unsupervised analysis showed that non-tumor tissues present markedly distinct DNA methylation profiles, while tumors are highly heterogeneous. Hypomethylation was more frequent in LSCC and OPSCC, while ESCC and OSCC presented mostly hypermethylation, with the latter showing a CpG island overrepresentation. Differentially methylated regions affected genes in 127 signaling pathways, with only 3.1% of these being common among different tumor subsites, but with different genes affected. The WNT signaling pathway, known to be dysregulated in different epithelial tumors, is a frequent hit for DNA methylation and gene expression alterations in ESCC and OPSCC, but mostly for genetic alterations in LSCC and OSCC. UADT tumor subsites present differences in genome-wide methylation regarding their profile, intensity, genomic regions and signaling pathways affected.
Collapse
Affiliation(s)
- Sheila Coelho Soares-Lima
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–6° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil; (S.C.S.-L.); (D.C.); (P.N.-N.); (M.d.S.A.L.)
| | - Hisham Mehanna
- Institute of Head and Neck Studies and Education (InHANSE), Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2TT, UK; (H.M.); (N.B.)
| | - Diego Camuzi
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–6° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil; (S.C.S.-L.); (D.C.); (P.N.-N.); (M.d.S.A.L.)
| | | | - Tatiana de Almeida Simão
- Departamento de Bioquímica, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Av. 28 de Setembro 87 fundos, Vila Isabel, Rio de Janeiro 20551-013, Brazil;
| | - Pedro Nicolau-Neto
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–6° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil; (S.C.S.-L.); (D.C.); (P.N.-N.); (M.d.S.A.L.)
| | - Monique de Souza Almeida Lopes
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–6° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil; (S.C.S.-L.); (D.C.); (P.N.-N.); (M.d.S.A.L.)
| | - Cyrille Cuenin
- Epigenetics Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, CEDEX 08, 69372 Lyon, France; (C.C.); (F.R.T.); (D.D.E.); (Z.H.)
| | - Fazlur Rahman Talukdar
- Epigenetics Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, CEDEX 08, 69372 Lyon, France; (C.C.); (F.R.T.); (D.D.E.); (Z.H.)
| | - Nikolaos Batis
- Institute of Head and Neck Studies and Education (InHANSE), Institute of Cancer and Genomic Sciences, University of Birmingham, Birmingham B15 2TT, UK; (H.M.); (N.B.)
| | - Izabella Costa
- Seção de Cirurgia de Cabeça e Pescoço, Instituto Nacional de Câncer—INCA, Praça da Cruz Vermelha, Rio de Janeiro 20230-130, Brazil; (I.C.); (F.D.)
| | - Fernando Dias
- Seção de Cirurgia de Cabeça e Pescoço, Instituto Nacional de Câncer—INCA, Praça da Cruz Vermelha, Rio de Janeiro 20230-130, Brazil; (I.C.); (F.D.)
| | - Davide Degli Esposti
- Epigenetics Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, CEDEX 08, 69372 Lyon, France; (C.C.); (F.R.T.); (D.D.E.); (Z.H.)
| | - Mariana Boroni
- Bioinformatics and Computational Biology Lab, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–1° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil;
| | - Zdenko Herceg
- Epigenetics Group, International Agency for Research on Cancer, 150 Cours Albert Thomas, CEDEX 08, 69372 Lyon, France; (C.C.); (F.R.T.); (D.D.E.); (Z.H.)
| | - Luis Felipe Ribeiro Pinto
- Molecular Carcinogenesis Program, Brazilian National Cancer Institute, Rua André Cavalcanti, 37–6° Andar, Bairro de Fátima, Rio de Janeiro 20231-050, Brazil; (S.C.S.-L.); (D.C.); (P.N.-N.); (M.d.S.A.L.)
- Departamento de Bioquímica, Instituto de Biologia Roberto Alcantara Gomes, Universidade do Estado do Rio de Janeiro, Av. 28 de Setembro 87 fundos, Vila Isabel, Rio de Janeiro 20551-013, Brazil;
| |
Collapse
|
2
|
Fernández-Mateos J, Pérez-García J, Seijas-Tamayo R, Mesía R, Rubió-Casadevall J, García-Girón C, Iglesias L, Carral Maseda A, Adansa Klain JC, Taberna M, Vazquez S, Gómez MA, Del Barco E, Ocana A, González-Sarmiento R, Cruz-Hernández JJ. Oncogenic driver mutations predict outcome in a cohort of head and neck squamous cell carcinoma (HNSCC) patients within a clinical trial. Sci Rep 2020; 10:16634. [PMID: 33024167 PMCID: PMC7539152 DOI: 10.1038/s41598-020-72927-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2020] [Accepted: 08/13/2020] [Indexed: 12/26/2022] Open
Abstract
234 diagnostic formalin-fixed paraffin-embedded (FFPE) blocks from homogeneously treated patients with locally advanced head and neck squamous cell carcinoma (HNSCC) within a multicentre phase III clinical trial were characterised. The mutational spectrum was examined by next generation sequencing in the 26 most frequent oncogenic drivers in cancer and correlated with treatment response and survival. Human papillomavirus (HPV) status was measured by p16INK4a immunohistochemistry in oropharyngeal tumours. Clinicopathological features and response to treatment were measured and compared with the sequencing results. The results indicated TP53 as the most mutated gene in locally advanced HNSCC. HPV-positive oropharyngeal tumours were less mutated than HPV-negative tumours in TP53 (p < 0.01). Mutational and HPV status influences patient survival, being mutated or HPV-negative tumours associated with poor overall survival (p < 0.05). No association was found between mutations and clinicopathological features. This study confirmed and expanded previously published genomic characterization data in HNSCC. Survival analysis showed that non-mutated HNSCC tumours associated with better prognosis and lack of mutations can be identified as an important biomarker in HNSCC. Frequent alterations in PI3K pathway in HPV-positive HNSCC could define a promising pathway for pharmacological intervention in this group of tumours.
Collapse
Affiliation(s)
- Javier Fernández-Mateos
- Medical Oncology Service, University Hospital of Salamanca-IBSAL, 37007, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain.,Molecular Medicine Unit-IBSAL, Department of Medicine, University of Salamanca, 37007, Salamanca, Spain.,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-CSIC, 37007, Salamanca, Spain
| | - Jéssica Pérez-García
- Molecular Medicine Unit-IBSAL, Department of Medicine, University of Salamanca, 37007, Salamanca, Spain.,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-CSIC, 37007, Salamanca, Spain
| | - Raquel Seijas-Tamayo
- Medical Oncology Service, University Hospital of Salamanca-IBSAL, 37007, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain
| | - Ricard Mesía
- Medical Oncology Department, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Universitat de Barcelona, IDIBELL, 08908, Barcelona, Spain
| | | | - Carlos García-Girón
- Medical Oncology Service, Hospital Universitario de Burgos, 09006, Burgos, Spain
| | - Lara Iglesias
- Medical Oncology Service, Hospital Universitario 12 de Octubre, 28041, Madrid, Spain
| | | | - Juan Carlos Adansa Klain
- Medical Oncology Service, University Hospital of Salamanca-IBSAL, 37007, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain
| | - Miren Taberna
- Medical Oncology Department, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Universitat de Barcelona, IDIBELL, 08908, Barcelona, Spain
| | - Silvia Vazquez
- Medical Oncology Department, Institut Català d'Oncologia, L'Hospitalet de Llobregat, Universitat de Barcelona, IDIBELL, 08908, Barcelona, Spain
| | | | - Edel Del Barco
- Medical Oncology Service, University Hospital of Salamanca-IBSAL, 37007, Salamanca, Spain.,Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain
| | - Alberto Ocana
- Hospital Clínico San Carlos, IdISSC, CIBERONC, 28040, Madrid, Spain.,Centro Regional de Investigaciones Biomédicas, Universidad de Castilla La Mancha, 13071, Albacete, Spain
| | - Rogelio González-Sarmiento
- Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain. .,Molecular Medicine Unit-IBSAL, Department of Medicine, University of Salamanca, 37007, Salamanca, Spain. .,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-CSIC, 37007, Salamanca, Spain.
| | - Juan Jesús Cruz-Hernández
- Medical Oncology Service, University Hospital of Salamanca-IBSAL, 37007, Salamanca, Spain. .,Biomedical Research Institute of Salamanca (IBSAL), SACYL-University of Salamanca-CSIC, 37007, Salamanca, Spain. .,Molecular Medicine Unit-IBSAL, Department of Medicine, University of Salamanca, 37007, Salamanca, Spain. .,Institute of Molecular and Cellular Biology of Cancer (IBMCC), University of Salamanca-CSIC, 37007, Salamanca, Spain.
| |
Collapse
|
3
|
Castillo-Ledesma N, Corriols-Noval P, López-Simón E, Viana-Cora A, Casafont-Morencos F, Ezcurra-Acedo I, Morales-Angulo C. Head and neck cancer screening in patients eligible for liver transplantation. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2020. [DOI: 10.1016/j.otoeng.2020.02.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
4
|
Castillo-Ledesma N, Corriols-Noval P, López-Simón E, Viana-Cora A, Casafont-Morencos F, Ezcurra-Acedo I, Morales-Angulo C. Cribado de cáncer de cabeza y cuello en pacientes candidatos a trasplante hepático. ACTA OTORRINOLARINGOLOGICA ESPANOLA 2020; 71:249-252. [DOI: 10.1016/j.otorri.2020.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2018] [Revised: 01/14/2020] [Accepted: 02/04/2020] [Indexed: 02/08/2023]
|
5
|
Vučičević Boras V, Fučić A, Baranović S, Blivajs I, Milenović M, Bišof V, Rakušić Z, Ceppi M, Bruzzone M. Environmental and behavioural head and neck cancer risk factors. Cent Eur J Public Health 2019; 27:106-109. [DOI: 10.21101/cejph.a5565] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2018] [Accepted: 04/12/2019] [Indexed: 11/15/2022]
|
6
|
Genetic Susceptibility in Head and Neck Squamous Cell Carcinoma in a Spanish Population. Cancers (Basel) 2019; 11:cancers11040493. [PMID: 30959967 PMCID: PMC6521206 DOI: 10.3390/cancers11040493] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2019] [Revised: 04/02/2019] [Accepted: 04/04/2019] [Indexed: 01/30/2023] Open
Abstract
Despite classical environmental risk factors like tobacco, alcohol or viral infection, not all individuals develop head and neck cancer. Therefore, identification of the genetic susceptibility produced by single nucleotide polymorphisms (SNPs) is an important task. A total of 296 human papillomavirus negative head and neck cancer (HNC) patients (126 laryngeal, 100 pharyngeal and 70 oral cavity) were included in the study, involving 29 candidate SNPs in genes within important carcinogenic pathways (oncogenesis and tumour suppression, DNA repair, inflammation, oxidation and apoptosis). Genotyping was performed using TaqMan probes or restriction fragment length assays in peripheral blood DNA. In addition, 259 paired controls were also evaluated with the same risk factors for each specific location. Nine SNPs in DNA repair (ERCC1 rs11615, ERCC2 rs13181), inflammatory (IL2 rs2069762, IL6 rs1800795), oxidative (NFE2L2 rs13035806 and rs2706110) and apoptotic genes (TP53 rs1042522, MDM2 rs2279744, BCL2 rs2279115) were differently associated with HNSCC susceptibility by location. Some of these SNPs were not described before in this tumour type. In conclusion, we describe several SNPs associated with HNC in a Spanish population.
Collapse
|
7
|
Early AD, Adelson S, Miller CJ, Mauger TF. Lack of relationship between cigarette smoking and alcohol use with dysplasia grade in ocular surface squamous neoplasia. Clin Ophthalmol 2018; 12:1901-1904. [PMID: 30319242 PMCID: PMC6171765 DOI: 10.2147/opth.s165968] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
Objective To evaluate smoking and alcohol use as risk factors for higher-grade dysplasia in a population of patients with histopathologically proven ocular surface squamous neoplasia. Materials and methods This is a retrospective chart review of data extracted from a database comprising demographic information and medical diagnosis information based on International Classification of Disease codes. Outcome measures were analyzed using the Wilcoxon two-sided test, a non-parametric t-test. Results Database review yielded 35 patients with ocular surface squamous neoplasia lesions proven by histopathologic analysis. The mean age was 64.51 years with SD 17.54 years. Patients were 28.57% female and 71.43% male. Nearly all patients were White (88.57%), and 5.71% were African American, 2.86% Hispanic, and 2.86% Other. There was no significant difference in dysplasia grade between smokers and non-smokers (P=0.7044), those who used alcohol vs did not use alcohol (P=0.2470), those who used tobacco and alcohol vs those who did not (P=0.5117), and those who used either tobacco or alcohol vs those who did not (P=0.8259). Conclusion No statistically significant relationship was found between high-grade dysplasia and cigarette smoking, alcohol use, or both cigarette smoking and alcohol use.
Collapse
Affiliation(s)
- Alison D Early
- Department of Ophthalmology, The Ohio State University Havener Eye Institute, Columbus, OH, USA,
| | - Sarah Adelson
- Department of Ophthalmology, The Ohio State University Havener Eye Institute, Columbus, OH, USA,
| | - Craig J Miller
- Department of Ophthalmology, The Ohio State University Havener Eye Institute, Columbus, OH, USA,
| | - Thomas F Mauger
- Department of Ophthalmology, The Ohio State University Havener Eye Institute, Columbus, OH, USA,
| |
Collapse
|
8
|
Valls-Ontañón A, Hernández-Losa J, Somoza Lopez de Haro R, Bellosillo-Paricio B, Ramón Y Cajal S, Bescós-Atín C, Munill-Ferrer M, Alberola-Ferranti M. Impact of human papilloma virus in patients with oral and oropharyngeal squamous cell carcinomas. Med Clin (Barc) 2018; 152:174-180. [PMID: 30777194 DOI: 10.1016/j.medcli.2018.05.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Revised: 05/10/2018] [Accepted: 05/17/2018] [Indexed: 01/23/2023]
Abstract
BACKGROUND AND OBJECTIVES Although there is scientific evidence demonstrating causation of human papilloma virus (HPV) on squamous cell carcinoma of head and neck, its percentage of causality on the anatomic region remains in dispute. This study was developed with the objectives of evaluating the relationship between HPV and oral and oropharyngeal squamous cell carcinomas (OOSCC), and of studying the correlation between HPV detection tests (PCR and p16). MATERIAL AND METHOD Retrospective study of patients treated for OOSCC during 2011, with a follow-up of 6 years. The sample was divided into 2 groups according to HPV positivity, detected by 2 techniques: p16 by immunohistochemistry and PCR. Demographic and clinical variables were analysed using SPSS® 22.0, considering P<.05 to be statistically significant. RESULTS We analysed 155 patients affected by OOSCC (mean age of 62.7, where 69% were males). Twenty six cases were p16+ (16.8%) and 19 cases PCR+ (12.3%), The HPV+ tumours were located predominantly in the oropharynx (42.1%, P=.017) and demonstrated the tendency to be more frequent in males, with higher incidence in younger patients, lower in smokers and drinkers, and higher when patients have a greater cervical lymph node involvement at the time of diagnosis. The PCR+ patients had higher survival (P=.024), as did the p16+ (P=.005). CONCLUSIONS The incidence of HPV in OOSCC is low (12.3%), but the clinical presentation and prognosis of the HPV+ patient differs from the classic smoker and/or drinker, which implies assessing the management of these patients independently. The p16 staining has a great diagnostic capacity to predict HPV (95.5%), although the detection of the HPV genome is still the gold standard technique.
Collapse
Affiliation(s)
- Adaia Valls-Ontañón
- Departamento de Cirugía Oral y Maxilofacial, Hospital Vall d'Hebron, Barcelona, España.
| | - Javier Hernández-Losa
- Servicio de Anatomía Patológica, Hospital Vall d'Hebron, Barcelona, España; Grupo de Patología Molecular Translacional, Institut de Recerca, Hospital Vall d'Hebron, Barcelona, España; Centro de Investigación Biomedica en Red CIBERONC, Barcelona, España
| | - Rosa Somoza Lopez de Haro
- Grupo de Patología Molecular Translacional, Institut de Recerca, Hospital Vall d'Hebron, Barcelona, España
| | | | - Santiago Ramón Y Cajal
- Servicio de Anatomía Patológica, Hospital Vall d'Hebron, Barcelona, España; Grupo de Patología Molecular Translacional, Institut de Recerca, Hospital Vall d'Hebron, Barcelona, España; Centro de Investigación Biomedica en Red CIBERONC, Barcelona, España
| | - Coro Bescós-Atín
- Departamento de Cirugía Oral y Maxilofacial, Hospital Vall d'Hebron, Barcelona, España
| | | | | |
Collapse
|
9
|
Analysis of autophagy gene polymorphisms in Spanish patients with head and neck squamous cell carcinoma. Sci Rep 2017; 7:6887. [PMID: 28761177 PMCID: PMC5537226 DOI: 10.1038/s41598-017-07270-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2017] [Accepted: 06/27/2017] [Indexed: 12/11/2022] Open
Abstract
Head and neck squamous cell carcinoma (HNSCC) is the sixth cancer on incidence worldwide. Tobacco and alcohol consumption are the most classical risk factors associated with its development. Autophagy process has a dual effect both in tumourigenesis and tumour suppressing activity. To investigate the importance of this pathway in HNSCC susceptibility, a risk factor matched case-control association study was performed with four candidate polymorphisms in autophagy genes (ATG2B, ATG5, ATG10, ATG16L1). We found an association between the variant in ATG10 rs1864183 and a higher susceptibility to develop laryngeal cancer, ATG2B rs3759601 and pharyngeal cancer and ATG16L1 rs2241880 and oral carcinoma. ATG5 rs2245214 SNP was not associated with any location. Overall, our results indicate the importance of the autophagy pathway in the susceptibility of head and neck squamous cell carcinoma and demonstrate the heterogeneity between its locations encompassed under a single terminology.
Collapse
|
10
|
Aramburu Núñez D, Lopez Medina A, Mera Iglesias M, Salvador Gomez F, Dave A, Hatzoglou V, Paudyal R, Calzado A, Deasy JO, Shukla-Dave A, Muñoz VM. Multimodality functional imaging using DW-MRI and 18F-FDG-PET/CT during radiation therapy for human papillomavirus negative head and neck squamous cell carcinoma: Meixoeiro Hospital of Vigo Experience. World J Radiol 2017; 9:17-26. [PMID: 28144403 PMCID: PMC5241537 DOI: 10.4329/wjr.v9.i1.17] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2016] [Revised: 10/29/2016] [Accepted: 11/22/2016] [Indexed: 02/06/2023] Open
Abstract
AIM To noninvasively investigate tumor cellularity measured using diffusion-weighted magnetic resonance imaging (DW-MRI) and glucose metabolism measured by 18F-labeled fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) during radiation therapy (RT) for human papillomavirus negative (HPV-) head and neck squamous cell carcinoma (HNSCC).
METHODS In this prospective study, 6 HPV- HNSCC patients underwent a total of 34 multimodality imaging examinations (DW-MRI at 1.5 T Philips MRI scanner [(n = 24) pre-, during- (2-3 wk), and post-treatment (Tx), and 18F-FDG PET/CT pre- and post-Tx (n = 10)]. All patients received RT. Monoexponential modeling of the DW-MRI data yielded the imaging metric apparent diffusion coefficient (ADC) and the mean of standardized uptake value (SUV) was measured from 18F-FDG PET uptake. All patients had a clinical follow-up as the standard of care and survival status was documented at 1 year.
RESULTS There was a strong negative correlation between the mean of pretreatment ADC (ρ = -0.67, P = 0.01) and the pretreatment 18F-FDG PET SUV. The percentage (%) change in delta (∆) ADC for primary tumors and neck nodal metastases between pre- and Wk2-3 Tx were as follows: 75.4% and 61.6%, respectively, for the patient with no evidence of disease, 27.5% and 32.7%, respectively, for those patients who were alive with disease, and 26.9% and 7.31%, respectively, for those who were dead with disease.
CONCLUSION These results are preliminary in nature and are indicative, and not definitive, trends rendered by the imaging metrics due to the small sample size of HPV- HNSCC patients in a Meixoeiro Hospital of Vigo Experience.
Collapse
|