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Calvo FA, Tudela M, Serrano J, Muñoz-Fernández M, Peligros MI, Garcia-Alfonso P, del Valle E. Post-Chemoradiation Metastatic, Persistent and Resistant Nodes in Locally Advanced Rectal Cancer: Metrics and Their Impact on Long-Term Outcome. Cancers (Basel) 2023; 15:4591. [PMID: 37760559 PMCID: PMC10526999 DOI: 10.3390/cancers15184591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Revised: 09/06/2023] [Accepted: 09/11/2023] [Indexed: 09/29/2023] Open
Abstract
BACKGROUND The purpose of this study was to evaluate the long-term oncological progression pattern of locally advanced rectal cancer patients with post-neoadjuvant nodal metastatic disease (ypN+) and correlate potential prognostic features associated with proven radiochemoresistant nodal biology. METHODS Individual patient data (100 variables) from a 20-year consecutive single-institution multidisciplinary experience (1995-2015), delivering multimodal therapy to rectal cancer patient candidates for radical treatment, including a neoadjuvant component and surgical resection with or without intraoperative radiotherapy followed by optional adjuvant chemotherapy. The ypN+ disease data was registered in the context of initial staging categories post-neoadjuvant T status (ypT). RESULTS Data on 487 patients showed histologically confirmed diagnoses of metastatic nodal disease in 108 specimens (ypN+, 22.1). There was a significant age difference (p = 0.009) between the ypN groups: age ≥ 65 was 57.6% in pN0 and 43.5% in ypN+ and patients aged < 65 constituted 42.4% of pN0 and 56.5% of ypN+. According to the clinical stage there were statistically significant differences (p = 0.001) in the categories' distribution: ypN+ patients 10.8% were stage II and 89.2% were stage III. Univariant analysis on outcome variables showed statistically significant differences in overall survival at 7 years (63.8% vs. 55.7%, p = 0.016) disease-free survival (DFS) (78% vs. 53.8%, p = 0.000) and local recurrence-free survival (LRFS) (93.6% vs. 84%, p = 0.002). CONCLUSIONS The presence of nodal metastases (ypN+) after neoadjuvant therapy containing long-course pelvic irradiation severely impacts the long-term outcome for patients with locally advanced rectal cancer and correlates with multiple clinical and therapeutic variable metrics. Implementation of local and systemic therapies should be adapted and intensified in relation to the finding of ypN+ category in surgical specimens.
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Affiliation(s)
- Felipe A. Calvo
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
- Department of Oncology, Clinica Universidad de Navarra, 28027 Madrid, Spain;
| | - María Tudela
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
| | - Javier Serrano
- Department of Oncology, Clinica Universidad de Navarra, 28027 Madrid, Spain;
| | - Mercedes Muñoz-Fernández
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
| | - María Isabel Peligros
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
| | - Pilar Garcia-Alfonso
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
| | - Emilio del Valle
- Hospital General Universitario Gregorio Marañón, 28007 Madrid, Spain; (M.T.); (M.M.-F.); (M.I.P.); (P.G.-A.); (E.d.V.)
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Jafari Maskouni E, Jamalvandi T, Tabatabaei F, Bourenjan Shirazi S, Saadati H, Letafati A, Hosseini M, Motlaghzadeh S, Khalesi Z, Moradi P, Saeb S, Sheikh N, Fozouni E, Khatami A, Baker AH, Keyvanlou Z, Tamrchi V, Tavakoli A, Ghorbani S. Association between Epstein-Bar virus and colorectal cancer: A systematic review and meta-analysis. Microb Pathog 2023; 179:106087. [PMID: 37003501 DOI: 10.1016/j.micpath.2023.106087] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 03/22/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023]
Abstract
AIM This study aimed to investigate the prevalence and any potential association between Epstein-Barr virus (EBV) infection and colorectal cancer (CRC). METHODS A systematic literature search was performed by finding relevant cross-sectional and case-control studies from main online databases. Heterogeneity, odds ratio (OR), and corresponding 95% confidence interval (CI) were applied to all studies through meta-analysis and forest plots. The analysis was performed using STATA Software v.14.1. RESULTS Twenty-three articles were included in the meta-analysis, eight of them were case/control and 15 were cross-sectional. The pooled prevalence of EBV among 1954 CRC patients was 18% (95% CI: 12%-26%; I2 = 93.14%). Furthermore, in geographical regions, the highest and lowest prevalence of EBV was observed in South America 30% (95% CI: 18%-43%) and Africa 0% (95% CI: 0%-5%), respectively. An association was found between EBV infection and CRC [OR = 3.4 (95% CI (1.13-10.27); I2 = 72.3%)]. CONCLUSION EBV infection is associated with CRC and can be considered a potential risk factor for the development of CRC. Although the exact molecular mechanism of EBV infection in the development of CRC is still unknown, it seems that latent infection by EBV, intestinal damage, and inflammation can be important factors in the induction of CRC.
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Affiliation(s)
- Elham Jafari Maskouni
- Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Tasnim Jamalvandi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Farbod Tabatabaei
- Faculty of Converting Sciences and Technologies, Islamic Azad University, Science and Research Branch, Tehran, Iran
| | - Sepideh Bourenjan Shirazi
- Department of Microbiology and Microbial Biotechnology, Faculty of Life Sciences and Biotechnology, Shahid Beheshti University, Tehran, Iran
| | - Hasan Saadati
- Department of Epidemiology and Biostatistics, School of Health, North Khorasan University of Medical Sciences, Bojnurd, Iran
| | - Arash Letafati
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Mahdiyeh Hosseini
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Saeed Motlaghzadeh
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Zohreh Khalesi
- Department of Virology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran
| | - Pouya Moradi
- Department of Virology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Sepideh Saeb
- Department of Virology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Najmeh Sheikh
- Department of Virology, Lorestan University of Medical Sciences, Khorramabad, Iran
| | - Elaheh Fozouni
- Department of Microbiology and Virology, School of Medicine, Kerman University of Medical Sciences, Kerman, Iran
| | - Alireza Khatami
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | | | - Zahra Keyvanlou
- Department of Virology, Faculty of Medical Science, Tarbiat Modares University, Tehran, Iran
| | - Vahid Tamrchi
- Department of Microbiology of Golestan University of Medical Sciences, Golesatn, Iran
| | - Ahmad Tavakoli
- Research Center of Pediatric Infectious Diseases, Institute of Immunology and Infectious Diseases, Iran University of Medical Sciences, Tehran, Iran.
| | - Saied Ghorbani
- Department of Virology, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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Yin YX, Xie MZ, Liang XQ, Ye ML, Li JL, Hu BL. Clinical Significance and Prognostic Value of the Maximum Standardized Uptake Value of 18F-Flurodeoxyglucose Positron Emission Tomography-Computed Tomography in Colorectal Cancer. Front Oncol 2021; 11:741612. [PMID: 34956868 PMCID: PMC8695495 DOI: 10.3389/fonc.2021.741612] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 11/15/2021] [Indexed: 01/05/2023] Open
Abstract
Background The role of 18F-flurodeoxyglucose (18F-FDG) positron emission tomography–computed tomography (PET/CT) in colorectal cancer (CRC) remains unclear. This study aimed to explore the association of the maximum standardized uptake value (SUVmax), a parameter of 18F-FDG PET/CT, with KRAS mutation, the Ki-67 index, and survival in patients with CRC. Methods Data of 66 patients with CRC who underwent 18F-FDG PET/CT was retrospectively collected in our center. The clinical significance of the SUVmax in CRC and the association of the SUVmax with KRAS mutation and the Ki-67 index were determined. A meta-analysis was conducted by a systematic search of PubMed, Web of Science, and CNKI databases, and the data from published articles were combined with that of our study. The association of the SUVmax with KRAS mutation and the Ki-67 index was determined using the odds ratio to estimate the pooled results. The hazard ratio was used to quantitatively evaluate the prognosis of the SUVmax in CRC. Results By analyzing the data of 66 patients with CRC, the SUVmax was found not to be related to the tumor-node-metastasis stage, clinical stage, sex, and KRAS mutation but was related to the tumor location and nerve invasion. The SUVmax had no significant correlation with the tumor biomarkers and the Ki-67 index. Data of 17 studies indicated that the SUVmax was significantly increased in the mutated type compared with the wild type of KRAS in CRC; four studies showed that there was no remarkable difference between patients with a high and low Ki-67 index score regarding the SUVmax. Twelve studies revealed that the SUVmax had no significant association with overall survival and disease-free survival in CRC patients. Conclusions Based on the combined data, this study demonstrated that the SUVmax of 18F-FDG PET/CT was different between colon and rectal cancers and associated with KRAS mutation but not the Ki-67 index; there was no significant association between the SUVmax and survival of patients with CRC.
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Affiliation(s)
- Yi-Xin Yin
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ming-Zhi Xie
- Department of Chemotherapy, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Xin-Qiang Liang
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Meng-Ling Ye
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Ji-Lin Li
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
| | - Bang-Li Hu
- Department of Research, Guangxi Medical University Cancer Hospital, Nanning, China
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Oleynikova NA, Danilova NV, Grimuta MO, Malkov PG. Epstein-Barr Virus in the Development of Colorectal Cancer (Review). Sovrem Tekhnologii Med 2021; 13:82-91. [PMID: 34603767 PMCID: PMC8482827 DOI: 10.17691/stm2021.13.4.09] [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: 12/04/2020] [Indexed: 12/03/2022] Open
Abstract
The study of the influence of the Epstein–Barr virus (EBV) on the development of colorectal cancer is of current interest, particularly in light of the active discussion of the participation of this virus in the carcinogenesis of stomach cancer. In this review, aimed at a fundamental understanding of the processes associated with the impact of EBV on the human body, attention is paid to the issues of the life cycle of the virus, its phases (latent and lytic), as well as proteins that may be detected in each of the phases. The papers reporting on the role of EBV in the development of colorectal cancer have been analyzed. A summary table indicating the population under study, the number of samples, the method, and the result obtained is provided. Given that the primary cells affected by EBV are lymphocytes, it is logical to assume the involvement of this virus in the development of inflammatory bowel diseases. The review cites studies which confirm the presence of virus DNA in tissues in the inflammatory diseases of the colon, including microscopic and ulcerative colitis. To confirm the direct impact of EBV on the development of colorectal cancer, large studies with applying various methods for detecting the virus and the mandatory description of its localization are required. Besides, it is necessary to correlate these data with the clinical and morphological characteristics of EBV.
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Affiliation(s)
- N A Oleynikova
- Researcher, Department of Clinical Pathology; Medical Scientific and Educational Center, Lomonosov Moscow State University, 27/10 Lomonosov Prospect, Moscow, 119192, Russia
| | - N V Danilova
- Senior Researcher, Department of Clinical Pathology; Medical Scientific and Educational Center, Lomonosov Moscow State University, 27/10 Lomonosov Prospect, Moscow, 119192, Russia
| | - M O Grimuta
- Student; I.M. Sechenov First Moscow State Medical University (Sechenov University), 8/2 Trubetskaya St., Moscow, 119991, Russia
| | - P G Malkov
- Head of the Department of Clinical Pathology; Medical Scientific and Educational Center, Lomonosov Moscow State University, 27/10 Lomonosov Prospect, Moscow, 119192, Russia
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Almeida JFM, Proenca-Modena JL, Bufalo NE, Peres KC, de Souza Teixeira E, Teodoro L, Beck RM, Moraes AP, Tincani AJ, Arns CW, Ward LS. Epstein-Barr virus induces morphological and molecular changes in thyroid neoplastic cells. Endocrine 2020; 69:321-330. [PMID: 32166585 DOI: 10.1007/s12020-020-02253-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2019] [Accepted: 02/29/2020] [Indexed: 12/16/2022]
Abstract
Although the evolution of differentiated thyroid cancer (DTC) is usually indolent, some tumors grow fast, metastasize, and may be fatal. Viruses have been associated with many human tumors, especially the Epstein-Barr virus (EBV), which shows a high viral load in DTC. In order to evaluate the ability of the virus to cause morphological and molecular changes in neoplastic thyroid cell lines TPC-1, BCPAP, and 8505C, a viral adaptation was performed for the analysis of EBV cytopathic effect (CPE), viral kinetics and gene expression analysis of oncogenes KRAS, NRAS, HRAS, and TP53. Comparison of inoculated cells with non-inoculated control cells showed that all tumor cell lines were permissive to the virus. The virus caused CPE in the TPC-1 and 8505C, but not in BCPAP cells. Viral kinetic was similar in both BCPAP and 8505C with a point of eclipse at 24 h post infection. TPC-1 cell line displayed a decreasing growth curve, with highest viral load right after inoculation, which decreased over time. There was hyperexpression of TP53 and NRAS in BCPAP cell (p = 0.012 and p = 0.0344, respectively). The 8505C cell line presented NRAS hyperexpression (p = 0.0255), but lower TP53 expression (p = 0.0274). We concluded that neoplastic thyroid cell lines are permissive to EBV that the virus presents different viral kinetic patterns in different cell lines and produces a CPE on both well-differentiated and undifferentiated thyroid cell lines. We also demonstrated that EBV interferes in oncogene expression in thyroid neoplastic cell lines, suggesting that these effects could be related to different tumor progression patterns.
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Affiliation(s)
- Jacqueline Fátima Martins Almeida
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil.
| | - José Luiz Proenca-Modena
- Emerging virus Research Laboratory, Department of Genetics, Evolution, Microbiology and Immunology, Institute of Biology, State University of Campinas (IB-Unicamp), Campinas, SP, Brazil
| | - Natássia Elena Bufalo
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil
| | - Karina Colombera Peres
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil
| | - Elisângela de Souza Teixeira
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil
| | - Larissa Teodoro
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil
| | - Raíssa Marques Beck
- Animal Virology Laboratory-Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (IB-Unicamp), Campinas, SP, Brazil
| | - Ana Paula Moraes
- Animal Virology Laboratory-Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (IB-Unicamp), Campinas, SP, Brazil
| | - Alfio José Tincani
- Head and Neck Surgery Department-State University of Campinas, University Clinical Hospital (HC-Unicamp), Campinas, SP, Brazil
| | - Clarice Weis Arns
- Animal Virology Laboratory-Department of Genetics, Evolution and Bioagents, Institute of Biology, State University of Campinas (IB-Unicamp), Campinas, SP, Brazil
| | - Laura Sterian Ward
- Laboratory of Cancer Molecular Genetics (Gemoca), Department of Medical Clinic, Faculty of Medical Sciences, State University of Campinas (FCM-Unicamp), Campinas, SP, Brazil
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Gupta I, Al Farsi H, Jabeen A, Skenderi F, Al-Thawadi H, AlAhmad YM, Abdelhafez I, Al Moustafa AE, Vranic S. High-Risk Human Papillomaviruses and Epstein-Barr Virus in Colorectal Cancer and Their Association with Clinicopathological Status. Pathogens 2020; 9:E452. [PMID: 32521661 PMCID: PMC7350373 DOI: 10.3390/pathogens9060452] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 05/21/2020] [Accepted: 05/28/2020] [Indexed: 02/07/2023] Open
Abstract
Colorectal cancer (CRC) is a common malignancy with a high mortality rate worldwide. It is a complex, multifactorial disease that is strongly impacted by both hereditary and environmental factors. The role of microbes (e.g., viruses) in the pathogenesis of CRC is poorly understood. In the current study, we explored the status of high-risk human papillomaviruses (HPV) and Epstein-Barr virus (EBV) in a well-defined CRC cohort using immunohistochemistry and polymerase chain reaction assays. Our data showed that high-risk HPVs were common (~80%) and EBV had a low presence (14-25%) in the CRC samples. The most common high-risk HPVs are HPV16, 31, 18, 51, 52 and 45 genotypes. The co-presence of high-risk HPV and EBV was observed in ~16% of the sample population without any significant association with the clinicopathological variables. We conclude that high-risk HPVs are very prevalent in CRC samples while EBV positivity is relatively low. The co-expression of the two viruses was observed in a minority of cases and without any correlation with the studied parameters. Further studies are necessary to confirm the clinical relevance and potential therapeutic (preventive) effects of the observations reported herein.
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Affiliation(s)
- Ishita Gupta
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Halema Al Farsi
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Ayesha Jabeen
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Faruk Skenderi
- Department of Pathology, Clinical Center, University of Sarajevo, 71000 Sarajevo, Bosnia and Herzegovina;
| | - Hamda Al-Thawadi
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Yaman M. AlAhmad
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Ibrahim Abdelhafez
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
| | - Ala-Eddin Al Moustafa
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
- Biomedical Research Centre, Qatar University, 2713 Doha, Qatar
| | - Semir Vranic
- College of Medicine, QU Health, Qatar University, 2713 Doha, Qatar; (I.G.); (H.A.F.); (A.J.); (H.A.-T.); (Y.M.A.); (I.A.)
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Fernandes Q, Gupta I, Vranic S, Al Moustafa AE. Human Papillomaviruses and Epstein-Barr Virus Interactions in Colorectal Cancer: A Brief Review. Pathogens 2020; 9:pathogens9040300. [PMID: 32325943 PMCID: PMC7238043 DOI: 10.3390/pathogens9040300] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/05/2020] [Accepted: 04/07/2020] [Indexed: 02/06/2023] Open
Abstract
Human papillomaviruses (HPVs) and the Epstein-Barr virus (EBV) are the most common oncoviruses, contributing to approximately 10%-15% of all malignancies. Oncoproteins of high-risk HPVs (E5 and E6/E7), as well as EBV (LMP1, LMP2A and EBNA1), play a principal role in the onset and progression of several human carcinomas, including head and neck, cervical and colorectal. Oncoproteins of high-risk HPVs and EBV can cooperate to initiate and/or enhance epithelial-mesenchymal transition (EMT) events, which represents one of the hallmarks of cancer progression and metastasis. Although the role of these oncoviruses in several cancers is well established, their role in the pathogenesis of colorectal cancer is still nascent. This review presents an overview of the most recent advances related to the presence and role of high-risk HPVs and EBV in colorectal cancer, with an emphasis on their cooperation in colorectal carcinogenesis.
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Affiliation(s)
- Queenie Fernandes
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar; (Q.F.); (I.G.)
- Biomedical Research Centre, Qatar University, Doha 2713, Qatar
| | - Ishita Gupta
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar; (Q.F.); (I.G.)
- Biomedical Research Centre, Qatar University, Doha 2713, Qatar
| | - Semir Vranic
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar; (Q.F.); (I.G.)
- Correspondence: (S.V.); (A.-E.A.M.); Tel.:+974-4403-7873 (S.V.); +974-4403-7817 (A.-E.A.M.)
| | - Ala-Eddin Al Moustafa
- College of Medicine, QU Health, Qatar University, Doha 2713, Qatar; (Q.F.); (I.G.)
- Biomedical Research Centre, Qatar University, Doha 2713, Qatar
- Correspondence: (S.V.); (A.-E.A.M.); Tel.:+974-4403-7873 (S.V.); +974-4403-7817 (A.-E.A.M.)
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Bedri S, Sultan AA, Alkhalaf M, Al Moustafa AE, Vranic S. Epstein-Barr virus (EBV) status in colorectal cancer: a mini review. Hum Vaccin Immunother 2018; 15:603-610. [PMID: 30380978 DOI: 10.1080/21645515.2018.1543525] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Epstein-Barr virus (EBV) is a well-characterized oncovirus, associated with several malignancies. The complex and heterogeneous nature of colorectal cancer (CRC) has led to many epidemiological causal associations with CRC. However, a direct causal link between microbial infections and CRC has not been established yet. Our review indicates that the current evidence for the presence and role in EBV in CRC is insufficient and contradictory. The design of the analyzed studies, sample size as well as methodology used for EBV detection varied markedly and consequently may not lead to meaningful conclusions. The presence of EBV in other colorectal tumors (lymphomas, smooth muscle tumors) is in line with their status at other anatomic locations and may have therapeutic implications with EBV-specific vaccines. On the other hand, studies exploring EBV in colorectal adenoma-carcinoma sequence and its molecular genetic characteristics are largely missing and may significantly contribute to a better understanding of the role of EBV in CRC.
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Affiliation(s)
| | - Ali A Sultan
- b Weill Cornell Medicine - Qatar , Cornell University, Qatar Foundation - Education City , Doha , Qatar
| | | | - Ala-Eddin Al Moustafa
- d College of Medicine , Qatar University , Doha , Qatar.,e Syrian Research Cancer Centre of the Syrian Society against Cancer , Aleppo , Syria.,f Oncology Department , McGill University , Quebec , Montreal , Canada
| | - Semir Vranic
- d College of Medicine , Qatar University , Doha , Qatar
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Kawada K, Iwamoto M, Sakai Y. Mechanisms underlying 18F-fluorodeoxyglucose accumulation in colorectal cancer. World J Radiol 2016; 8:880-886. [PMID: 27928469 PMCID: PMC5120247 DOI: 10.4329/wjr.v8.i11.880] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2016] [Revised: 08/08/2016] [Accepted: 09/18/2016] [Indexed: 02/06/2023] Open
Abstract
Positron emission tomography (PET) with 18F-fluorodeoxyglucose (FDG) is a diagnostic tool to evaluate metabolic activity by measuring accumulation of FDG, an analogue of glucose, and has been widely used for detecting small tumors, monitoring treatment response and predicting patients’ prognosis in a variety of cancers. However, the molecular mechanism of FDG accumulation into tumors remains to be investigated. It is well-known that most cancers are metabolically active with elevated glucose metabolism, a phenomenon known as the Warburg effect. The underlying mechanisms for elevated glucose metabolism in cancer tissues are complex. Recent reports have indicated the potential of FDG-PET/CT scans in predicting mutational status (e.g., KRAS gene mutation) of colorectal cancer (CRC), which suggests that FDG-PET/CT scans may play a key role in determining therapeutic strategies by non-invasively predicting treatment response to anti-epidermal growth factor receptor (EGFR) therapy. In this review, we summarize the current findings investigating the molecular mechanism of 18F-FDG accumulation in CRC.
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Chen HP, Jiang JK, Chen CY, Yang CY, Chen YC, Lin CH, Chou TY, Cho WL, Chan YJ. Identification of human cytomegalovirus in tumour tissues of colorectal cancer and its association with the outcome of non-elderly patients. J Gen Virol 2016; 97:2411-2420. [PMID: 27435237 DOI: 10.1099/jgv.0.000558] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Increasing evidence suggests that human cytomegalovirus (HCMV) plays an oncomodulatory role in human cancers. In colorectal cancer (CRC), presence of HCMV in tumours has been associated with a poor outcome in elderly patients. This study aimed to investigate the association between HCMV and the outcome of non-elderly patients with CRC. In tumour samples, HCMV DNA was detected by PCR. Viral transcript and protein were detected by in situ hybridization (ISH) and immunohistochemical staining (IHC), respectively. Clinical, pathological and survival data were compared between patients with HCMV-positive and -negative tumours. Quantitative reverse transcription PCR (qRT-PCR) was used to analyse the expression levels of cellular signals related to CRC progression and metastasis. Among 89 CRC non-elderly patients aged <65 years, HCMV was detected in 31 (34.8 %) tumour samples by PCR. By ISH and IHC, viral transcript and protein specifically localized to the cytoplasm of neoplastic mucosal epithelium. Outcome analysis revealed a more favourable disease-free survival (DFS) rate in patients with HCMV-positive tumours (P<0.01), specifically in patients with stage III disease. In a multivariate Cox proportional-hazard model, tumoural presence of HCMV independently predicted a higher DFS rate (hazard ratio 0.22; 95 % confidence interval 0.075-0.66, P<0.01). By qRT-PCR, the tumoural levels of interleukin-1 were relatively lower in samples positive for HCMV. The results suggest that HCMV may influence the outcome of CRC in an age-dependent manner and possibly has a dual oncomodulatory effect. How the virus interacts with the tumour microenvironment should be further studied.
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Affiliation(s)
- Hsin-Pai Chen
- Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Department of Medicine, National Yang-Ming University Hospital, Yilan, Taiwan, ROC
| | - Jeng-Kai Jiang
- School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Division of Colon and Rectal Surgery, Department of Surgery, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Cheng-Yu Chen
- Department of Medicine, National Yang-Ming University Hospital, Yilan, Taiwan, ROC
| | - Chih-Yung Yang
- Department of Education and Research, Taipei City Hospital, Taipei, Taiwan, ROC
| | - Yen-Chung Chen
- Department of Pathology, National Yang-Ming University Hospital, Yilan, Taiwan, ROC
| | - Chi-Hung Lin
- Institute of Microbiology and Immunology, School of Life Science, National Yang-Ming University, Taipei, Taiwan, ROC
| | - Teh-Ying Chou
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Division of Molecular Pathology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC
| | - Wen-Long Cho
- Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC.,Department of Medicine, Mackay Medical College, Taipei, Taiwan, ROC
| | - Yu-Jiun Chan
- Division of Microbiology, Department of Pathology and Laboratory Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Division of Infectious Diseases, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan, ROC.,Institute of Public Health, School of Medicine, National Yang-Ming University, Taipei, Taiwan, ROC
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