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Shou S, Li Y, Chen J, Zhang X, Zhang C, Jiang X, Liu F, Yi L, Zhang X, Geer E, Pu Z, Pang B. Understanding, diagnosing, and treating pancreatic cancer from the perspective of telomeres and telomerase. Cancer Gene Ther 2024:10.1038/s41417-024-00768-6. [PMID: 38594465 DOI: 10.1038/s41417-024-00768-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2024] [Revised: 03/21/2024] [Accepted: 03/22/2024] [Indexed: 04/11/2024]
Abstract
Telomerase is associated with cellular aging, and its presence limits cellular lifespan. Telomerase by preventing telomere shortening can extend the number of cell divisions for cancer cells. In adult pancreatic cells, telomeres gradually shorten, while in precancerous lesions of cancer, telomeres in cells are usually significantly shortened. At this time, telomerase is still in an inactive state, and it is not until before and after the onset of cancer that telomerase is reactivated, causing cancer cells to proliferate. Methylation of the telomerase reverse transcriptase (TERT) promoter and regulation of telomerase by lactate dehydrogenase B (LDHB) is the mechanism of telomerase reactivation in pancreatic cancer. Understanding the role of telomeres and telomerase in pancreatic cancer will help to diagnose and initiate targeted therapy as early as possible. This article reviews the role of telomeres and telomerase as biomarkers in the development of pancreatic cancer and the progress of research on telomeres and telomerase as targets for therapeutic intervention.
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Affiliation(s)
- Songting Shou
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Yuanliang Li
- Department of Oncology, The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jiaqin Chen
- Department of Gastroenterology, Dongzhimen Hospital, Beijing, China
| | - Xing Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Chuanlong Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiaochen Jiang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Fudong Liu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Li Yi
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Xiyuan Zhang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - En Geer
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Zhenqing Pu
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China
| | - Bo Pang
- Guang'anmen Hospital, China Academy of Chinese Medical Sciences, Beijing, China.
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Tsatsakis A, Oikonomopoulou T, Nikolouzakis TK, Vakonaki E, Tzatzarakis M, Flamourakis M, Renieri E, Fragkiadaki P, Iliaki E, Bachlitzanaki M, Karzi V, Katsikantami I, Kakridonis F, Hatzidaki E, Tolia M, Svistunov AA, Spandidos DA, Nikitovic D, Tsiaoussis J, Berdiaki A. Role of telomere length in human carcinogenesis (Review). Int J Oncol 2023; 63:78. [PMID: 37232367 PMCID: PMC10552730 DOI: 10.3892/ijo.2023.5526] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Accepted: 05/11/2023] [Indexed: 05/27/2023] Open
Abstract
Cancer is considered the most important clinical, social and economic issue regarding cause‑specific disability‑adjusted life years among all human pathologies. Exogenous, endogenous and individual factors, including genetic predisposition, participate in cancer triggering. Telomeres are specific DNA structures positioned at the end of chromosomes and consist of repetitive nucleotide sequences, which, together with shelterin proteins, facilitate the maintenance of chromosome stability, while protecting them from genomic erosion. Even though the connection between telomere status and carcinogenesis has been identified, the absence of a universal or even a cancer‑specific trend renders consent even more complex. It is indicative that both short and long telomere lengths have been associated with a high risk of cancer incidence. When evaluating risk associations between cancer and telomere length, a disparity appears to emerge. Even though shorter telomeres have been adopted as a marker of poorer health status and an older biological age, longer telomeres due to increased cell growth potential are associated with the acquirement of cancer‑initiating somatic mutations. Therefore, the present review aimed to comprehensively present the multifaceted pattern of telomere length and cancer incidence association.
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Affiliation(s)
- Aristidis Tsatsakis
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | - Tatiana Oikonomopoulou
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
- Department of Anatomy, School of Medicine, University of Crete, 71003 Heraklion
| | - Taxiarchis Konstantinos Nikolouzakis
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
- Department of Anatomy, School of Medicine, University of Crete, 71003 Heraklion
| | - Elena Vakonaki
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | - Manolis Tzatzarakis
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | | | - Elisavet Renieri
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | | | - Evaggelia Iliaki
- Laboratory of Microbiology, University Hospital of Heraklion, 71500 Heraklion
| | - Maria Bachlitzanaki
- Department of Medical Oncology, Venizeleion General Hospital of Heraklion, 71409 Heraklion
| | - Vasiliki Karzi
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | - Ioanna Katsikantami
- Laboratory of Toxicology, School of Medicine, University of Crete, 71003 Heraklion
| | - Fotios Kakridonis
- Department of Spine Surgery and Scoliosis, KAT General Hospital, 14561 Athens
| | - Eleftheria Hatzidaki
- Department of Neonatology and Neonatal Intensive Care Unit (NICU), University Hospital of Heraklion, 71500 Heraklion
| | - Maria Tolia
- Department of Radiation Oncology, University Hospital of Crete, 71110 Heraklion, Greece
| | - Andrey A. Svistunov
- Department of Pharmacology, I.M. Sechenov First Moscow State Medical University (Sechenov University), 119146 Moscow, Russia
| | - Demetrios A. Spandidos
- Laboratory of Clinical Virology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - Dragana Nikitovic
- Laboratory of Histology-Embryology, School of Medicine, University of Crete, 71003 Heraklion, Greece
| | - John Tsiaoussis
- Department of Anatomy, School of Medicine, University of Crete, 71003 Heraklion
| | - Aikaterini Berdiaki
- Laboratory of Histology-Embryology, School of Medicine, University of Crete, 71003 Heraklion, Greece
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Giaccherini M, Gentiluomo M, Fornili M, Lucenteforte E, Baglietto L, Campa D. Association between telomere length and mitochondrial copy number and cancer risk in humans: A meta-analysis on more than 300,000 individuals. Crit Rev Oncol Hematol 2021; 167:103510. [PMID: 34695574 DOI: 10.1016/j.critrevonc.2021.103510] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Revised: 10/13/2021] [Accepted: 10/14/2021] [Indexed: 12/17/2022] Open
Abstract
In the last decades the association of leukocyte telomere length (LTL) and mitochondrial copy number (mtDNAcn) with cancer risk has been the focus of many reports, however the relation is not yet completely understood. A meta-analysis of 112 studies including 64,184 cancer cases and 278,641 controls that analysed LTL and mtDNAcn in relation to cancer risk has been conducted to further our understanding of the topic. Stratified analyses for tumor type were also performed. Overall, no association was observed for all cancer combined neither for LTL nor mtDNAcn. Significant associations were detected for these biomarkers and specific cancer type; however, a large degree of heterogeneity was present, even within the same tumor type. Alternatives approaches based on polymorphic variants, such as polygenic risk scores and mendelian randomization, could be adopted to unravel the causal correlation of telomere length and mitochondrial copy number with cancer risk.
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Affiliation(s)
| | | | - Marco Fornili
- Department of Clinical and Experimental Medicine, University of Pisa, 56126, Pisa, Italy.
| | - Ersilia Lucenteforte
- Department of Clinical and Experimental Medicine, University of Pisa, 56126, Pisa, Italy.
| | - Laura Baglietto
- Department of Clinical and Experimental Medicine, University of Pisa, 56126, Pisa, Italy.
| | - Daniele Campa
- Department of Biology, University of Pisa, 56126, Pisa, Italy.
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Gentiluomo M, Canzian F, Nicolini A, Gemignani F, Landi S, Campa D. Germline genetic variability in pancreatic cancer risk and prognosis. Semin Cancer Biol 2020; 79:105-131. [DOI: 10.1016/j.semcancer.2020.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2020] [Revised: 08/04/2020] [Accepted: 08/06/2020] [Indexed: 02/07/2023]
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Antwi SO, Bamlet WR, Rabe KG, Cawthon RM, Umudi I, Druliner BR, Sicotte H, Oberg AL, Jatoi A, Boardman LA, Petersen GM. Leukocyte Telomere Length and Its Interaction with Germline Variation in Telomere-Related Genes in Relation to Pancreatic Adenocarcinoma Risk. Cancer Epidemiol Biomarkers Prev 2020; 29:1492-1500. [PMID: 32312758 DOI: 10.1158/1055-9965.epi-19-1597] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Revised: 03/18/2020] [Accepted: 04/15/2020] [Indexed: 11/16/2022] Open
Abstract
BACKGROUND Leukocyte telomere length (LTL) has been associated with risk of multiple cancers, but its association with pancreatic ductal adenocarcinoma (PDAC) is unclear. We therefore investigated the association between peripheral blood LTL and PDAC risk, and examined effect modification by candidate SNPs previously reported to be associated with variation in LTL. METHODS A case-control study of 1,460 PDAC cases and 1,459 frequency-matched controls was performed using biospecimens and data from the Mayo Clinic Biospecimen Resource for Pancreas Research. Quantitative PCR was used to measure LTL and categorized into tertiles based on sex-specific control distribution. Eleven telomere-related SNPs also were genotyped. Logistic regression was used to calculate ORs and 95% confidence intervals (CI). RESULTS Shorter peripheral blood LTL was associated with a higher risk of PDAC (ORT1vsT3 = 1.26, 95% CI = 1.03-1.54, P trend = 0.02; ORcontinuous = 1.14, 95% CI = 1.02-1.28), but the association was restricted to cases with treatment-naïve blood samples (ORT1vsT3 = 1.51, 95% CI = 1.16-1.96, P trend = 0.002; ORcontinuous = 1.25, 95% CI = 1.08-1.45) and not cases whose blood samples were collected after initiation of cancer therapy (ORT1vsT3 = 1.10, 95% CI = 0.87-1.39, P trend = 0.42; ORcontinuous = 1.08, 95% CI = 0.94-1.23). Three SNPs (TERC-rs10936599, ACYP2-rs11125529, and TERC-rs1317082) were each associated with interindividual variation in LTL among controls, but there was no evidence of effect modification by these SNPs. CONCLUSIONS Treatment-naïve short LTL is associated with a higher risk of PDAC, and the association does not differ by germline variation in the candidate telomere-related SNPs examined. IMPACT Peripheral blood LTL might serve as a molecular marker for risk modeling to identify persons at high risk of PDAC.
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Affiliation(s)
- Samuel O Antwi
- Division of Epidemiology, Mayo Clinic, Jacksonville, Florida.
| | - William R Bamlet
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Kari G Rabe
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Richard M Cawthon
- Department of Human Genetics, University of Utah, Salt Lake City, Utah
| | - Isoken Umudi
- Division of Epidemiology, Mayo Clinic, Jacksonville, Florida
| | - Brooke R Druliner
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Hugues Sicotte
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Ann L Oberg
- Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota
| | - Aminah Jatoi
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
| | - Lisa A Boardman
- Department of Gastroenterology and Hepatology, Mayo Clinic, Rochester, Minnesota
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Luu HN, Huang JY, Wang R, Adams-Haduch J, Jin A, Koh WP, Yuan JM. Association between leukocyte telomere length and the risk of pancreatic cancer: Findings from a prospective study. PLoS One 2019; 14:e0221697. [PMID: 31465482 PMCID: PMC6715276 DOI: 10.1371/journal.pone.0221697] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 08/13/2019] [Indexed: 01/23/2023] Open
Abstract
INTRODUCTION Telomeres and telomerase play important role in maintaining chromosome integrity and genomic stability. Recent epidemiologic data showed inconsistent findings which suggested that both short and long leukocyte telomeres could be associated with increased risk of pancreatic cancer. We prospectively examined the association between telomere length and pancreatic cancer risk in a population-based cohort study. METHODS The Singapore Chinese Health Study recruited 63,257 Chinese aged 45 to 74 years from 1993 to 1998 in Singapore. Relative telomere length in peripheral blood leukocytes was quantified using a validated monochrome multiplex quantitative polymerase chain reaction method in 26,540 participants, including 116 participants who later developed pancreatic cancer after an average of 13 years of follow-up. Cox proportional hazard regression method was used to calculate hazard ratio (HR) and its 95% confidence interval (CI) of pancreatic cancer risk associated with telomere length, with adjustment for confounding factors. RESULTS Longer telomeres were significantly associated with higher risk of pancreatic cancer (Ptrend = 0.02). Compared with lowest quartile, subjects with highest quartile of telomere length had an HR of 2.18 (95% CI: 1.25-3.80) for developing pancreatic cancer. In stratified analysis, this association remained among pancreatic adenocarcinoma patients but not among pancreatic non-adenocarcinoma patients. In continuous scale, the HRs and 95% CIs were 3.08 (1.17-8.11) for adenocarcinoma patients and 1.47 (0.43-5.06) for non-adenocarcinoma patients. The HRs and 95% CIs of the highest quartile of telomere length, compared with the lowest quartile, for adenocarcinoma and non-adenocarcinoma were 2.50 (1.22-5.13) and 1.63 (0.66-4.03), respectively. The length of follow-up from the collection of blood for the measurement of telomere length to the diagnosis of cancer (median = 8.0, range: from 5.0 months to 16.2 years) had no significant impact on the association between telomere length and pancreatic cancer risk. CONCLUSIONS The present study demonstrates that longer telomeres are associated with increased risk of overall pancreatic cancer.
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Affiliation(s)
- Hung N. Luu
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh PA, United States of America
- * E-mail: ,
| | - Joyce Y. Huang
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Renwei Wang
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Jennifer Adams-Haduch
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States of America
| | - Aizhen Jin
- Health Services and Systems Research, Duke-NUS Medical School Singapore, Singapore
| | - Woon-Puay Koh
- Health Services and Systems Research, Duke-NUS Medical School Singapore, Singapore
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore
| | - Jian-Min Yuan
- Division of Cancer Control and Population Sciences, UPMC Hillman Cancer Center, University of Pittsburgh, Pittsburgh, PA, United States of America
- Department of Epidemiology, Graduate School of Public Health, University of Pittsburgh, Pittsburgh PA, United States of America
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7
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Campa D, Matarazzi M, Greenhalf W, Bijlsma M, Saum KU, Pasquali C, van Laarhoven H, Szentesi A, Federici F, Vodicka P, Funel N, Pezzilli R, Bueno-de-Mesquita HB, Vodickova L, Basso D, Obazee O, Hackert T, Soucek P, Cuk K, Kaiser J, Sperti C, Lovecek M, Capurso G, Mohelnikova-Duchonova B, Khaw KT, König AK, Kupcinskas J, Kaaks R, Bambi F, Archibugi L, Mambrini A, Cavestro GM, Landi S, Hegyi P, Izbicki JR, Gioffreda D, Zambon CF, Tavano F, Talar-Wojnarowska R, Jamroziak K, Key TJ, Fave GD, Strobel O, Jonaitis L, Andriulli A, Lawlor RT, Pirozzi F, Katzke V, Valsuani C, Vashist YK, Brenner H, Canzian F. Genetic determinants of telomere length and risk of pancreatic cancer: A PANDoRA study. Int J Cancer 2019; 144:1275-1283. [PMID: 30325019 DOI: 10.1002/ijc.31928] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 09/12/2018] [Accepted: 09/13/2018] [Indexed: 02/05/2023]
Abstract
Telomere deregulation is a hallmark of cancer. Telomere length measured in lymphocytes (LTL) has been shown to be a risk marker for several cancers. For pancreatic ductal adenocarcinoma (PDAC) consensus is lacking whether risk is associated with long or short telomeres. Mendelian randomization approaches have shown that a score built from SNPs associated with LTL could be used as a robust risk marker. We explored this approach in a large scale study within the PANcreatic Disease ReseArch (PANDoRA) consortium. We analyzed 10 SNPs (ZNF676-rs409627, TERT-rs2736100, CTC1-rs3027234, DHX35-rs6028466, PXK-rs6772228, NAF1-rs7675998, ZNF208-rs8105767, OBFC1-rs9420907, ACYP2-rs11125529 and TERC-rs10936599) alone and combined in a LTL genetic score ("teloscore", which explains 2.2% of the telomere variability) in relation to PDAC risk in 2,374 cases and 4,326 controls. We identified several associations with PDAC risk, among which the strongest were with the TERT-rs2736100 SNP (OR = 1.54; 95%CI 1.35-1.76; p = 1.54 × 10-10 ) and a novel one with the NAF1-rs7675998 SNP (OR = 0.80; 95%CI 0.73-0.88; p = 1.87 × 10-6 , ptrend = 3.27 × 10-7 ). The association of short LTL, measured by the teloscore, with PDAC risk reached genome-wide significance (p = 2.98 × 10-9 for highest vs. lowest quintile; p = 1.82 × 10-10 as a continuous variable). In conclusion, we present a novel genome-wide candidate SNP for PDAC risk (TERT-rs2736100), a completely new signal (NAF1-rs7675998) approaching genome-wide significance and we report a strong association between the teloscore and risk of pancreatic cancer, suggesting that telomeres are a potential risk factor for pancreatic cancer.
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Affiliation(s)
- Daniele Campa
- Department of Biology, University of Pisa, Pisa, Italy
| | - Martina Matarazzi
- Department of Biology, University of Pisa, Pisa, Italy
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - William Greenhalf
- Institute for Health Research Liverpool Pancreas Biomedical Research Unit, University of Liverpool, Liverpool, United Kingdom
| | - Maarten Bijlsma
- Medical Oncology, Academic Medical Centre, Amsterdam, The Netherlands
| | - Kai-Uwe Saum
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Claudio Pasquali
- Pancreatic and Digestive Endocrine Surgery - Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Padova, Italy
| | | | - Andrea Szentesi
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
- First Department of Medicine, University of Szeged, Szeged, Hungary
| | - Francesca Federici
- Oncological Department, Azienda USL Toscana Nord Ovest, Oncological Unit of Massa Carrara, Carrara, Italy
| | - Pavel Vodicka
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Academy of Science of Czech Republic, Prague, Czech Republic
- Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Prague, Czech Republic
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Niccola Funel
- Department of Surgery, Unit of Experimental Surgical Pathology, University of Pisa, Pisa, Italy
| | - Raffaele Pezzilli
- Pancreas Unit, Department of Digestive System, Sant'Orsola-Malpighi Hospital, Bologna, Italy
| | - H Bas Bueno-de-Mesquita
- Department for Determinants of Chronic Diseases (DCD), National Institute for Public Health and the Environment (RIVM), Bilthoven, The Netherlands
- Department of Gastroenterology and Hepatology, University Medical Centre, Utrecht, The Netherlands
- Department of Epidemiology and Biostatistics, The School of Public Health, Imperial College London, London, United Kingdom
- Department of Social and Preventive Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - Ludmila Vodickova
- Department of Molecular Biology of Cancer, Institute of Experimental Medicine, Academy of Science of Czech Republic, Prague, Czech Republic
- Institute of Biology and Medical Genetics, 1st Medical Faculty, Charles University, Prague, Czech Republic
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Daniela Basso
- Department of Laboratory Medicine, University-Hospital of Padova, Padua, Italy
| | - Ofure Obazee
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Thilo Hackert
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Pavel Soucek
- Biomedical Center, Faculty of Medicine in Pilsen, Charles University, Pilsen, Czech Republic
| | - Katarina Cuk
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Jörg Kaiser
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Cosimo Sperti
- Third Surgical Clinic - Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Padova, Italy
| | - Martin Lovecek
- Department of Surgery I, Faculty of Medicine and Dentistry, Palacky University Olomouc and University Hospital Olomouc, Olomouc, Czech Republic
| | - Gabriele Capurso
- Digestive and Liver Disease Unit, S. Andrea Hospital, 'Sapienza' University, Rome, Italy
- PancreatoBiliary Endoscopy and EUS Division, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Beatrice Mohelnikova-Duchonova
- Department of Oncology, Institute of Molecular and Translational Medicine, Faculty of Medicine and Dentistry, Palacky University, Olomouc, Czech Republic
| | - Kay-Tee Khaw
- University of Cambridge School of Clinical Medicine Clinical Gerontology Unit, Addenbrooke's Hospital, Cambridge, United Kingdom
| | - Anna-Katharina König
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Juozas Kupcinskas
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Rudolf Kaaks
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Franco Bambi
- Blood Transfusion Service, Azienda Ospedaliero-Universitaria Meyer, Florence, Italy
| | - Livia Archibugi
- Digestive and Liver Disease Unit, S. Andrea Hospital, 'Sapienza' University, Rome, Italy
- PancreatoBiliary Endoscopy and EUS Division, Pancreas Translational and Clinical Research Center, IRCCS San Raffaele Scientific Institute, Vita Salute San Raffaele University, Milan, Italy
| | - Andrea Mambrini
- Oncological Department, Azienda USL Toscana Nord Ovest, Oncological Unit of Massa Carrara, Carrara, Italy
| | - Giulia Martina Cavestro
- Gastroenterology and Gastrointestinal Endoscopy Unit, Vita-Salute San Raffaele University, San Raffaele Scientific Institute, Milan, Italy
| | - Stefano Landi
- Department of Biology, University of Pisa, Pisa, Italy
| | - Péter Hegyi
- Institute for Translational Medicine, University of Pécs, Pécs, Hungary
- First Department of Medicine, University of Szeged, Szeged, Hungary
- MTA-SZTE Momentum Translational Gastroenterology Research Group, Szeged, Hungary
| | - Jakob R Izbicki
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Domenica Gioffreda
- Division of Gastroenterology and Molecular Biology Lab, IRCCS Ospedale Casa Sollievo Sofferenza, San Giovanni Rotondo, Italy
| | - Carlo Federico Zambon
- Third Surgical Clinic - Department of Surgery, Oncology and Gastroenterology (DiSCOG), University of Padova, Padova, Italy
| | - Francesca Tavano
- Division of Gastroenterology and Molecular Biology Lab, IRCCS Ospedale Casa Sollievo Sofferenza, San Giovanni Rotondo, Italy
| | | | | | - Timothy J Key
- Cancer Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom
| | - Gianfranco Delle Fave
- Digestive and Liver Disease Unit, S. Andrea Hospital, 'Sapienza' University, Rome, Italy
| | - Oliver Strobel
- Department of General, Visceral and Transplantation Surgery, University Hospital Heidelberg, Heidelberg, Germany
| | - Laimas Jonaitis
- Department of Gastroenterology, Lithuanian University of Health Sciences, Kaunas, Lithuania
| | - Angelo Andriulli
- Division of Gastroenterology and Molecular Biology Lab, IRCCS Ospedale Casa Sollievo Sofferenza, San Giovanni Rotondo, Italy
| | - Rita T Lawlor
- ARC-NET, University and Hospital Trust of Verona, Verona, Italy
| | - Felice Pirozzi
- Division of Abdominal Surgery, IRCCS Ospedale Casa Sollievo Sofferenza, San Giovanni Rotondo, Italy
| | - Verena Katzke
- Division of Cancer Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Chiara Valsuani
- Oncological Department, Azienda USL Toscana Nord Ovest, Oncological Unit of Massa Carrara, Carrara, Italy
| | - Yogesh K Vashist
- Department of General, Visceral and Thoracic Surgery, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Hermann Brenner
- Division of Clinical Epidemiology and Aging Research, German Cancer Research Center (DKFZ), Heidelberg, Germany
- Division of Preventive Oncology, German Cancer Research Center (DKFZ) and National Center for Tumor Diseases (NCT), Heidelberg, Germany
- German Cancer Consortium (DKTK), German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - Federico Canzian
- Genomic Epidemiology Group, German Cancer Research Center (DKFZ), Heidelberg, Germany
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Abstract
Many risk factors have been firmly established for pancreatic cancer (PC), but the molecular processes by which known risk factors influence susceptibility to PC are not clear. There has been a recent upsurge of interest in the role of telomere length (TL), the protective DNA sequence repeats at chromosome ends, in pancreatic carcinogenesis. Given this heightened interest, we performed an in-depth, focused, and up-to-date review of the epidemiological evidence linking leukocyte TL (LTL) with PC risk. We searched MEDLINE, Embase, and the Cochrane Library databases for all published studies on LTL and PC risk, up to May 2017. Five studies were identified for review: 4 nested case-control studies and 1 retrospective case-control study. Two studies found opposite associations between LTL and PC risk: 1 found a dose-response positive association and the other found a dose-response inverse association. Two studies also found a "U-shaped" association, whereas another reported a weak nonlinear relationship. We offer potential reasons for the conflicting findings including variation in study design, biospecimen characteristics, and differences in interlaboratory measurements of TL. Future studies should carefully control for risk factors of PC that are associated also with telomere attrition and investigate the role of genetic variation in TL maintenance.
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Wang W, Zheng L, Zhou N, Li N, Bulibu G, Xu C, Zhang Y, Tang Y. Meta-analysis of associations between telomere length and colorectal cancer survival from observational studies. Oncotarget 2017; 8:62500-62507. [PMID: 28977964 PMCID: PMC5617524 DOI: 10.18632/oncotarget.20055] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Accepted: 07/25/2017] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Telomere length (TL) has been reported to be associated with the risk and survival of several cancers. But it is unclear for the prognostic role of TL in colorectal cancer (CRC). MATERIALS AND METHODS Relevant citations were searched and identified using several major online databases through April 2017 which investigated associations between TL and CRC prognosis. We combined summary estimates using hazard ratios (HRs) with 95% confidence interval (CI), which were pooled using a random-effects model. Overall survival (OS) was set as the primary outcome of interest. RESULTS There are 8 cohort studies encompassing 1622 patients included in the meta-analysis. Pooled estimate indicated that long TL was not significantly associated with patient OS (HR 1.26, 95% CI, 0.76 to 2.08). When we conducted subgroup analyses based on baseline charcteristics, we found that long TL (versus short TL) was significantly associated with poor OS in studies conducted in Europe (n = 4, HR 2.73, 95% CI, 1.65 to 4.52, I2 = 0), using Southern blot to measure TL (n = 3, HR 2.93, 95% CI, 1.69 to 5.10, I2 = 0) and patients' age more than 60 years (n = 3, HR 2.65, 95% CI, 1.22 to 5.76, I2 = 0). We found no significant associations between TL and patient disease-free, recurrence-free or progression-free survival (HR 1.19, 95% CI, 0.45 to 3.15). CONCLUSIONS Current evidence did not provide solid indication that long TL is significantly associated with improved or poor survival for patients with CRC. Further large sample size prospective cohort studies are warranted to determine the true relationship for specific patients.
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Affiliation(s)
- Wei Wang
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
| | - Lei Zheng
- Department of Endocrinology, The First Affiliated Hospital of Chinese PLA General Hospital, Beijing, China
| | - Ning Zhou
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
| | - Na Li
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
| | - Gilisihan Bulibu
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
| | - Chunlei Xu
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
| | - Yi Zhang
- Department of Pharmacy, The First People's Hospital of Jiashan, Jiashan County, Jiaxing City, Zhejiang Province, China
| | - Yong Tang
- Department of Digestive Internal Medicine, The Affiliated Tumor Hospital of Xinjiang Medical University, Urumqi, Xin Jiang Province, China
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Milon A, Opydo-Chanek M, Tworzydlo W, Galas J, Pardyak L, Kaminska A, Ptak A, Kotula-Balak M. Chlorinated biphenyls effect on estrogen-related receptor expression, steroid secretion, mitochondria ultrastructure but not on mitochondrial membrane potential in Leydig cells. Cell Tissue Res 2017; 369:429-444. [PMID: 28315012 PMCID: PMC5552843 DOI: 10.1007/s00441-017-2596-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2016] [Accepted: 02/22/2017] [Indexed: 12/16/2022]
Abstract
To characterize polychlorinated biphenyls (PCBs) action on Leydig cells, PCBs congeners, low-chlorinated (delor 103; d103) and high-chlorinated ones (delor 106; d106) were selected. The cells were treated according to PCBs dose (d103 or d106 0.2 ng/ml in low doses:, or 2 ng/ml in high doses) and type (d103 + d106 in low doses or 103 + 106 in high doses). After 24 h treatment with PCBs, a distinct increase in estrogen-related receptors (ERRs type α, β and γ) expression was revealed. However, the dose- and type-dependent PCBs effect was mostly exerted on ERRα expression. A similar increase in ERRs expression was demonstrated by estradiol but not testosterone, which was without an effect on ERRs. PCBs caused no decrease in the membrane potential status of Leydig cells (either in dose or type schedule) but had severe effects on the mitochondria number and structure. Moreover, PCBs markedly increased calcium (Ca2+) concentration and sex steroid secretion (both androgens and estrogens were elevated). These findings suggest a similar estrogenic action of PCBs congeners (d103 and d106) on Leydig cell function. We report dose- and type-specific effects of PCBs only on Leydig cell ERRs expression. Both delors showed common effects on the mitochondria ultrastructural and functional status. Based on our results, ERRα seems to be the most sensitive to hormonal modulation. The increases in Ca2+ and sex steroid secretion may be due to the activation of ERRs by PCBs binding and/or direct effect of PCBs on ERRs mRNA/protein expression. Nevertheless, to confirm the existence of possible relationships between ERRs signaling (including PCBs as ligands) and mitochondria function in Leydig cells, further intensive studies are needed.
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Affiliation(s)
- Agnieszka Milon
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Malgorzata Opydo-Chanek
- Department of Experimental Hematology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Waclaw Tworzydlo
- Department of Developmental Biology and Morphology of Invertebrates, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Jerzy Galas
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Laura Pardyak
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Alicja Kaminska
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Anna Ptak
- Department of Physiology and Toxicology of Reproduction, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland
| | - Malgorzata Kotula-Balak
- Department of Endocrinology, Institute of Zoology, Jagiellonian University in Kraków, Gronostajowa 9, 30-387, Krakow, Poland.
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Antwi SO, Boardman LA, Petersen GM. Telomere Length and Pancreatic Cancer Risk-Reply. Cancer Epidemiol Biomarkers Prev 2017. [PMID: 28634187 DOI: 10.1158/1055-9965.epi-17-0307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Samuel O Antwi
- Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Jacksonville, Florida
| | - Lisa A Boardman
- Division of Gastroenterology, Department of Medicine, Mayo Clinic, Rochester, Minnesota
| | - Gloria M Petersen
- Division of Epidemiology, Department of Health Sciences Research, Mayo Clinic, Rochester, Minnesota.
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