1
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Zhang M, Zhong J, Song Z, Xu Q, Chen Y, Zhang Z. Regulatory mechanisms and potential therapeutic targets in precancerous lesions of gastric cancer: A comprehensive review. Biomed Pharmacother 2024; 177:117068. [PMID: 39018877 DOI: 10.1016/j.biopha.2024.117068] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 06/27/2024] [Accepted: 06/27/2024] [Indexed: 07/19/2024] Open
Abstract
Precancerous lesions of gastric cancer (PLGC) represent a critical pathological stage in the transformation from normal gastric mucosa to gastric cancer (GC). The global incidence of PLGC has been rising over the past few decades, with a trend towards younger onset ages. Increasing evidence suggests that early prevention and treatment of PLGC can effectively reverse the malignant development of gastric mucosal epithelial cells. However, there is currently a lack of effective therapeutic drugs and methods. Recent years have witnessed substantial advancements in PLGC research, with the elucidation of novel regulatory mechanisms offering promising avenues for clinical intervention and drug development. This review aims to delineate potential targets for early prevention and diagnosis of GC while exploring innovative approaches to PLGC management. This article focuses on elucidating the regulatory mechanisms of the inflammatory microenvironment, bile acids (BA), glycolysis, autophagy, apoptosis, ferroptosis, and cellular senescence. We pay particular attention to potential therapeutic targets for PLGC, with the goal of providing insights and theoretical basis for clinical research on PLGC.
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Affiliation(s)
- Maofu Zhang
- Clinical College of Traditional Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China
| | - Jialin Zhong
- Clinical College of Traditional Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China
| | - Zhongyang Song
- Department of Oncology, Affiliated Hospital of Gansu University of Traditional Chinese Medicine, Lanzhou, Gansu 730020, China
| | - Qian Xu
- Clinical College of Traditional Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China
| | - Yuchan Chen
- Clinical College of Traditional Chinese Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730000, China
| | - Zhiming Zhang
- Department of Oncology, Gansu Provincial Hospital of Traditional Chinese Medicine, Lanzhou, Gansu 730050, China.
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2
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Jia J, Zhao H, Li F, Zheng Q, Wang G, Li D, Liu Y. Research on drug treatment and the novel signaling pathway of chronic atrophic gastritis. Biomed Pharmacother 2024; 176:116912. [PMID: 38850667 DOI: 10.1016/j.biopha.2024.116912] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2024] [Revised: 06/04/2024] [Accepted: 06/06/2024] [Indexed: 06/10/2024] Open
Abstract
BACKGROUND Chronic atrophic gastritis (CAG) is a global digestive system disease and one of the important causes of gastric cancer. The incidence of CAG has been increasing yearly worldwide. PURPOSE This article reviews the latest research on the common causes and future therapeutic targets of CAG as well as the pharmacological effects of corresponding clinical drugs. We provide a detailed theoretical basis for further research on possible methods for the treatment of CAG and reversal of the CAG process. RESULTS CAG often develops from chronic gastritis, and its main pathological manifestation is atrophy of the gastric mucosa, which can develop into gastric cancer. The drug treatment of CAG can be divided into agents that regulate gastric acid secretion, eradicate Helicobacter. pylori (H. pylori), protect gastric mucous membrane, or inhibit inflammatory factors according to their mechanism of action. Although there are limited specific drugs for the treatment of CAG, progress is being made in defining the pathogenesis and therapeutic targets of the disease. Growing evidence shows that NF-κB, PI3K/AKT, Wnt/ β-catenin, MAPK, Toll-like receptors (TLRs), Hedgehog, and VEGF signaling pathways play an important role in the development of CAG.
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Affiliation(s)
- Jinhao Jia
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China
| | - Huijie Zhao
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China
| | - Fangfei Li
- Shum Yiu Foon Shum Bik Chuen Memorial Centre for Cancer and Inflammation Research, School of Chinese Medicine, Hong Kong Baptist University, Hong Kong, Special Administrative Region of China
| | - Qiusheng Zheng
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, Xinjiang 832003, PR China
| | - Guoli Wang
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China
| | - Defang Li
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China; Key Laboratory of Xinjiang Phytomedicine Resource and Utilization, Ministry of Education, School of Pharmacy, Shihezi University, Shihezi, Xinjiang 832003, PR China.
| | - Ying Liu
- Featured Laboratory for Biosynthesis and Target Discovery of Active Components of Traditional Chinese Medicine, School of Traditional Chinese Medicine & Binzhou Hospital of Traditional Chinese Medicine, Binzhou Medical University, Yantai, Shandong 264003, PR China.
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3
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Castagnola MJ, Medina-Paz F, Zapico SC. Uncovering Forensic Evidence: A Path to Age Estimation through DNA Methylation. Int J Mol Sci 2024; 25:4917. [PMID: 38732129 PMCID: PMC11084977 DOI: 10.3390/ijms25094917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 04/27/2024] [Accepted: 04/28/2024] [Indexed: 05/13/2024] Open
Abstract
Age estimation is a critical aspect of reconstructing a biological profile in forensic sciences. Diverse biochemical processes have been studied in their correlation with age, and the results have driven DNA methylation to the forefront as a promising biomarker. DNA methylation, an epigenetic modification, has been extensively studied in recent years for developing age estimation models in criminalistics and forensic anthropology. Epigenetic clocks, which analyze DNA sites undergoing hypermethylation or hypomethylation as individuals age, have paved the way for improved prediction models. A wide range of biomarkers and methods for DNA methylation analysis have been proposed, achieving different accuracies across samples and cell types. This review extensively explores literature from the past 5 years, showing scientific efforts toward the ultimate goal: applying age prediction models to assist in human identification.
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Affiliation(s)
- María Josefina Castagnola
- Department of Chemistry and Environmental Sciences, New Jersey Institute of Technology, Tiernan Hall 365, Newark, NJ 07102, USA; (M.J.C.); (F.M.-P.)
| | - Francisco Medina-Paz
- Department of Chemistry and Environmental Sciences, New Jersey Institute of Technology, Tiernan Hall 365, Newark, NJ 07102, USA; (M.J.C.); (F.M.-P.)
| | - Sara C. Zapico
- Department of Chemistry and Environmental Sciences, New Jersey Institute of Technology, Tiernan Hall 365, Newark, NJ 07102, USA; (M.J.C.); (F.M.-P.)
- Department of Anthropology and Laboratories of Analytical Biology, National Museum of Natural History, MRC 112, Smithsonian Institution, Washington, DC 20560, USA
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4
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Pandey S, Anang V, Singh S, Seth S, Bhatt AN, Kalra N, Manda K, Soni R, Roy BG, Natarajan K, Dwarakanath BS. Dietary administration of the glycolytic inhibitor 2-deoxy-D-glucose reduces endotoxemia-induced inflammation and oxidative stress: Implications in PAMP-associated acute and chronic pathology. Front Pharmacol 2023; 14:940129. [PMID: 37234710 PMCID: PMC10206263 DOI: 10.3389/fphar.2023.940129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2022] [Accepted: 04/20/2023] [Indexed: 05/28/2023] Open
Abstract
Pathogen-associated molecular patterns (PAMPs) like bacterial cell wall components and viral nucleic acids are known ligands of innate inflammatory receptors that trigger multiple inflammatory pathways that may result in acute inflammation and oxidative stress-driven tissue and organ toxicity. When dysregulated, this inflammation may lead to acute toxicity and multiorgan failure. Inflammatory events are often driven by high energy demands and macromolecular biosynthesis. Therefore, we proposed that targeting the metabolism of lipopolysaccharide (LPS)-driven inflammatory events, using an energy restriction approach, can be an effective strategy to prevent the acute or chronic detrimental effects of accidental or seasonal bacterial and other pathogenic exposures. In the present study, we investigated the potential of energy restriction mimetic agent (ERMA) 2-deoxy-D-glucose (2-DG) in targeting the metabolism of inflammatory events during LPS-elicited acute inflammatory response. Mice fed with 2-DG as a dietary component in drinking water showed reduced LPS-driven inflammatory processes. Dietary 2-DG reduced LPS-induced lung endothelial damage and oxidative stress by strengthening the antioxidant defense system and limiting the activation and expression of inflammatory proteins, viz., P-Stat-3, NfκΒ, and MAP kinases. This was accompanied by decreased TNF, IL-1β, and IL-6 levels in peripheral blood and bronchoalveolar lavage fluid (BALF). 2-DG also reduced the infiltration of PMNCs (polymorphonuclear cells) in inflamed tissues. Altered glycolysis and improved mitochondrial activity in 2-DG-treated RAW 264.7 macrophage cells suggested possible impairment of macrophage metabolism and, therefore, activation in macrophages. Taken together, the present study suggests that inclusion of glycolytic inhibitor 2-DG as a part of the diet can be helpful in preventing the severity and poor prognosis associated with inflammatory events during bacterial and other pathogenic exposures.
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Affiliation(s)
- Sanjay Pandey
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
- Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
- Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Vandana Anang
- Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
| | - Saurabh Singh
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
- Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
- Department of Radiation Oncology, Albert Einstein College of Medicine, Bronx, NY, United States
| | - Saurabh Seth
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Anant Narayan Bhatt
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Namita Kalra
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Kailash Manda
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Ravi Soni
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - Bal Gangadhar Roy
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
| | - K. Natarajan
- Infectious Disease Immunology Laboratory, Dr. B.R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India
| | - Bilikere S. Dwarakanath
- Division of Radiation Biosciences, Institute of Nuclear Medicine and Allied Sciences, Delhi, India
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5
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Zheng SY, Zhu L, Wu LY, Liu HR, Ma XP, Li Q, Wu MD, Wang WJ, Li J, Wu HG. Helicobacter pylori-positive chronic atrophic gastritis and cellular senescence. Helicobacter 2023; 28:e12944. [PMID: 36539375 DOI: 10.1111/hel.12944] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 12/03/2022] [Accepted: 12/05/2022] [Indexed: 01/27/2023]
Abstract
BACKGROUND Chronic atrophic gastritis (CAG) is a pathological stage in the Correa's cascade, whereby Helicobacter pylori (H. pylori) infection is the primary cause. Cellular senescence is an inducing factor for cancer occurrence and cellular senescence is an obvious phenomenon in gastric mucosal tissues of H. pylori-positive CAG patients. METHODS In this review, we collated the information on cellular senescence and H. pylori-positive CAG. RESULTS At present, only a few studies have observed the effect of cellular senescence on precancerous lesions. In combination with the latest research, this review has collated the information on cellular senescence and H. pylori-positive CAG from four aspects- telomere shortening, DNA methylation, increased reacive oxygen species (ROS) production, and failure of autophagy. CONCLUSION This is expected to be helpful for exploring the relevant mechanisms underlying inflammatory cancerous transformation and formulating appropriate treatment strategies.
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Affiliation(s)
- Shi-Yu Zheng
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu Zhu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lu-Yi Wu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Hui-Rong Liu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai Research Institute of Acupuncture and Meridian, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiao-Peng Ma
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai Research Institute of Acupuncture and Meridian, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Qi Li
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Meng-Die Wu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Wen-Jia Wang
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jing Li
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Huan-Gan Wu
- Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai, China.,Shanghai Research Institute of Acupuncture and Meridian, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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6
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Rivera Del Rio A, Keppler JK, Boom RM, Janssen AEM. Protein acidification and hydrolysis by pepsin ensure efficient trypsin-catalyzed hydrolysis. Food Funct 2021; 12:4570-4581. [PMID: 33908536 DOI: 10.1039/d1fo00413a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Enzyme-catalysed hydrolysis is important in protein digestion. Protein hydrolysis is initiated by pepsin at low pH in the stomach. However, pepsin action and acidification happen simultaneously to gastric emptying, especially for liquid meals. Therefore, different extents of exposure to the gastric environment change the composition of the chyme that is emptied from the stomach into the small intestine over time. We assessed the susceptibility of a protein to trypsin-catalysed hydrolysis in the small intestine, depending on its pH and hydrolysis history, simulating chyme at different times after the onset of gastric emptying. Isothermal titration calorimetry was used to study the kinetics of pepsin and trypsin-catalysed hydrolysis. Bovine serum albumin (BSA) that was acidified and hydrolysed with pepsin, showed the highest extent and most efficient hydrolysis by trypsin. BSA in the chyme that would be first emptied from the stomach, virtually bypassing gastric acidity and peptic action, reduced trypsin-catalysed hydrolysis by up to 58% compared to the acidified, intact protein, and 77% less than the acidified, pepsin-hydrolysate. The least efficient substrate for trypsin-catalysed hydrolysis was the acidified, intact protein with a specificity constant (kcat/Km) nearly five times lower than that of the acidified, pepsin-hydrolysate. Our results illustrate the synergy between pepsin and trypsin hydrolysis, and indicate that gastric hydrolysis increases the efficiency of the subsequent trypsin-catalysed hydrolysis of a model protein in the small intestine.
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Affiliation(s)
- Andrea Rivera Del Rio
- Food Process Engineering, Wageningen University, P.O. Box 176700 AA, Wageningen, The Netherlands.
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7
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Yang T, Wang R, Liu H, Wang L, Li J, Wu S, Chen X, Yang X, Zhao Y. Berberine regulates macrophage polarization through IL-4-STAT6 signaling pathway in Helicobacter pylori-induced chronic atrophic gastritis. Life Sci 2020; 266:118903. [PMID: 33340526 DOI: 10.1016/j.lfs.2020.118903] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/01/2020] [Accepted: 12/10/2020] [Indexed: 12/20/2022]
Abstract
AIMS We will investigate the anti-inflammatory activities of berberine (BBR) in treating chronic atrophic gastritis (CAG) induced by Helicobacter pylori (H. pylori). Furthermore, the underlying molecular mechanisms of BBR also will be explored systematically. MATERIALS AND METHODS Rats were infected by H. pylori. Lipopolysaccharide (LPS) and H. pylori were applied to induce M1 Mφs polarization, interleukin 4 (IL-4) and BBR were used to induce M2 Mφs polarization. Supernatants of polarized Mφs were collected as conditioned media (CM) for investigating the impact of Mφs and its' secreted cytokine on gastric epithelial cells (GES-1). Cell viability, morphology, proliferation, and quantitative analysis of RAW 264.7 cells and GES-1 cells were detected by high-content screening (HCS) imaging assay. To further investigate the potential mechanisms of BBR, relative mRNA, immunohistochemistry and protein expression were measured. KEY FINDINGS BBR inhibited M1-polarized Mφs, which was induced by H. pylori and LPS, and advocated M2-polarized Mφs. The M1-specific markers (TNF-α and IFN-γ) in supernatants were reduced significantly and M2 specific markers (TGF-β and IL-10) were increased obviously under BBR intervention. In addition, BBR significantly protected GES-1 from M1-polarized Mφs injury. The mRNA expression of M1-polarized Mφs, including TNF-α, NOS2, CCR7, and IRF-8, were suppressed by BBR administration and the mRNA expression of M2-polarized Mφs, including IL-4, STAT6, IL-10 and Chil3, were increased by BBR intervention. Meanwhile, BBR activated IL-4-STAT6 signaling pathway in vivo and in vitro when H. pylori infection and presented anti-inflammatory activities. SIGNIFICANCE BBR promotes M2-polarized Mφs when H. pylori infection. The anti-inflammatory properties of BBR tightly related to M1-polarized Mφs inhibition and M2-polarized Mφs promotion. BBR activates IL-4-STAT6 signaling pathway, which is crucial exceedingly in M2 Mφs activation and anti-inflammatory response.
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Affiliation(s)
- Tao Yang
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, PR China
| | - Ruilin Wang
- Integrative Medical Center, Chinese PLA General Hospital, Beijing 100039, PR China
| | - Honghong Liu
- Department of Policlinic, Chinese PLA General Hospital, Beijing 100039, PR China
| | - Lifu Wang
- Integrative Medical Center, Chinese PLA General Hospital, Beijing 100039, PR China; College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Jianyu Li
- Integrative Medical Center, Chinese PLA General Hospital, Beijing 100039, PR China; Colorectal and Anal Surgery, Chengdu Anorectal Hospital, No 152 Daqiang East Street, Taisheng South Road, Chengdu 610075, PR China
| | - Shihua Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xing Chen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Xiangdong Yang
- Colorectal and Anal Surgery, Chengdu Anorectal Hospital, No 152 Daqiang East Street, Taisheng South Road, Chengdu 610075, PR China.
| | - Yanling Zhao
- Department of Pharmacy, Chinese PLA General Hospital, Beijing 100039, PR China.
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8
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Ryan J, Wrigglesworth J, Loong J, Fransquet PD, Woods RL. A Systematic Review and Meta-analysis of Environmental, Lifestyle, and Health Factors Associated With DNA Methylation Age. J Gerontol A Biol Sci Med Sci 2020; 75:481-494. [PMID: 31001624 DOI: 10.1093/gerona/glz099] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2019] [Indexed: 02/07/2023] Open
Abstract
DNA methylation (DNAm) algorithms of biological age provide a robust estimate of an individual's chronological age and can predict their risk of age-related disease and mortality. This study reviewed the evidence that environmental, lifestyle and health factors are associated with the Horvath and Hannum epigenetic clocks. A systematic search identified 61 studies. Chronological age was correlated with DNAm age in blood (median .83, range .13-.99). In a meta-analysis body mass index (BMI) was associated with increased DNAm age (Hannum β: 0.07, 95% CI 0.04 to 0.10; Horvath β: 0.06, 95% CI 0.02 to 0.10), but there was no association with smoking (Hannum β: 0.12, 95% CI -0.50 to 0.73; Horvath β:0.18, 95% CI -0.10 to 0.46). DNAm age was positively associated with frailty (three studies, n = 3,093), and education was negatively associated with the Hannum estimate of DNAm age specifically (four studies, n = 13,955). For most other exposures, findings were too inconsistent to draw conclusions. In conclusion, BMI was positively associated with biological aging measured using DNAm, with some evidence that frailty also increased aging. More research is needed to provide conclusive evidence regarding other exposures. This field of research has the potential to provide further insights into how to promote slower biological aging and ultimately prolong healthy life.
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Affiliation(s)
- Joanne Ryan
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia.,INSERM, Univ Montpellier, Neuropsychiatry, Epidemiological and Clinical Research, Montpellier, France
| | - Jo Wrigglesworth
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Jun Loong
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Peter D Fransquet
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
| | - Robyn L Woods
- School of Public Health and Preventive Medicine, Monash University, Melbourne, Victoria, Australia
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9
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Cai Q, Shi P, Yuan Y, Peng J, Ou X, Zhou W, Li J, Su T, Lin L, Cai S, He Y, Xu J. Inflammation-Associated Senescence Promotes Helicobacter pylori-Induced Atrophic Gastritis. Cell Mol Gastroenterol Hepatol 2020; 11:857-880. [PMID: 33161156 PMCID: PMC7859172 DOI: 10.1016/j.jcmgh.2020.10.015] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 12/19/2022]
Abstract
BACKGROUND & AIMS The association between cellular senescence and Helicobacter pylori-induced atrophic gastritis is not clear. Here, we explore the role of cellular senescence in H pylori-induced atrophic gastritis and the underlying mechanism. METHODS C57BL/6J mice were infected with H pylori for biological and mechanistic studies in vivo. Gastric precancerous lesions from patients and mouse models were collected and analyzed using senescence-associated beta-galactosidase, Sudan Black B, and immunohistochemical staining to analyze senescent cells, signaling pathways, and H pylori infection. Chromatin immunoprecipitation, luciferase reporter assays, and other techniques were used to explore the underlying mechanism in vitro. RESULTS Gastric mucosa atrophy was highly associated with cellular senescence. H pylori promoted gastric epithelial cell senescence in vitro and in vivo in a manner that depended on C-X-C motif chemokine receptor 2 (CXCR2) signaling. Interestingly, H pylori infection not only up-regulated the expression of CXCR2 ligands, C-X-C motif chemokine ligands 1 and 8, but also transcriptionally up-regulated the expression of CXCR2 via the nuclear factor-κB subunit 1 directly. In addition, CXCR2 formed a positive feedback loop with p53 to continually enhance senescence. Pharmaceutical inhibition of CXCR2 in an H pylori-infected mouse model attenuated mucosal senescence and atrophy, and delayed further precancerous lesion progression. CONCLUSIONS Our study showed a new mechanism of H pylori-induced atrophic gastritis through CXCR2-mediated cellular senescence. Inhibition of CXCR2 signaling is suggested as a potential preventive therapy for targeting H pylori-induced atrophic gastritis. GEO data set accession numbers: GSE47797 and GSE3556.
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Affiliation(s)
- Qinbo Cai
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Peng Shi
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Yujie Yuan
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China
| | - Jianjun Peng
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China
| | - Xinde Ou
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Wen Zhou
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jin Li
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Center for Digestive Disease, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Taiqiang Su
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Center for Digestive Disease, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China; Laboratory of General Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Liangliang Lin
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China
| | - Shirong Cai
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China
| | - Yulong He
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China; Center for Digestive Disease, the Seventh Affiliated Hospital of Sun Yat-sen University, Shenzhen, China.
| | - Jianbo Xu
- Center of Gastrointestinal Surgery, the First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China; Center for Diagnosis and Treatment of Gastric Cancer, Sun Yat-sen University, Guangdong, China.
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10
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Koop BE, Reckert A, Becker J, Han Y, Wagner W, Ritz-Timme S. Epigenetic clocks may come out of rhythm-implications for the estimation of chronological age in forensic casework. Int J Legal Med 2020; 134:2215-2228. [PMID: 32661599 PMCID: PMC7578121 DOI: 10.1007/s00414-020-02375-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 07/08/2020] [Indexed: 01/01/2023]
Abstract
There is a growing perception that DNA methylation may be influenced by exogenous and endogenous parameters. Knowledge of these factors is of great relevance for the interpretation of DNA-methylation data for the estimation of chronological age in forensic casework. We performed a literature review to identify parameters, which might be of relevance for the prediction of chronological age based on DNA methylation. The quality of age predictions might particularly be influenced by lifetime adversities (chronic stress, trauma/post-traumatic stress disorder (PTSD), violence, low socioeconomic status/education), cancer, obesity and related diseases, infectious diseases (especially HIV and Cytomegalovirus (CMV) infections), sex, ethnicity and exposure to toxins (alcohol, smoking, air pollution, pesticides). Such factors may alter the DNA methylation pattern and may explain the partly high deviations between epigenetic age and chronological age in single cases (despite of low mean absolute deviations) that can also be observed with “epigenetic clocks” comprising a high number of CpG sites. So far, only few publications dealing with forensic age estimation address these confounding factors. Future research should focus on the identification of further relevant confounding factors and the development of models that are “robust” against the influence of such biological factors by systematic investigations under targeted inclusion of diverse and defined cohorts.
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Affiliation(s)
- Barbara Elisabeth Koop
- Institute of Legal Medicine, University Hospital Düsseldorf, 40225, Düsseldorf, Germany.
| | - Alexandra Reckert
- Institute of Legal Medicine, University Hospital Düsseldorf, 40225, Düsseldorf, Germany
| | - Julia Becker
- Institute of Legal Medicine, University Hospital Düsseldorf, 40225, Düsseldorf, Germany
| | - Yang Han
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen Faculty of Medicine, Aachen, Germany
| | - Wolfgang Wagner
- Helmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen Faculty of Medicine, Aachen, Germany
| | - Stefanie Ritz-Timme
- Institute of Legal Medicine, University Hospital Düsseldorf, 40225, Düsseldorf, Germany
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11
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Yang T, Wang R, Zhang J, Bao C, Zhang J, Li R, Chen X, Wu S, Wen J, Wei S, Li H, Cai H, Yang X, Zhao Y. Mechanism of berberine in treating Helicobacter pylori induced chronic atrophic gastritis through IRF8-IFN-γ signaling axis suppressing. Life Sci 2020; 248:117456. [PMID: 32097666 DOI: 10.1016/j.lfs.2020.117456] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Revised: 02/15/2020] [Accepted: 02/19/2020] [Indexed: 12/15/2022]
Abstract
AIMS In this study, we will investigate the therapeutic effects of berberine (BBR) in Helicobacter pylori (H. pylori) induced chronic atrophic gastritis (CAG). Furthermore, potential mechanisms of BBR in regulating IRF8-IFN-γ signaling axis will also be investigated. MATERIALS AND METHODS H. pylori were utilized to establish CAG model of rats. Therapeutic effects of BBR on serum supernatant indices, and histopathology of stomach were analyzed in vivo. Moreover, GES-1 cells were infected by H. pylori, and intervened with BBR in vitro. Cell viability, morphology, proliferation, and quantitative analysis were detected by high-content screening (HCS) imaging assay. To further investigate the potential mechanisms of BBR, relative mRNA, immunohistochemistry and protein expression in IRF8-IFN-γ signaling axis were measured. KEY FINDINGS Results showed serum supernatant indices including IL-17, CXCL1, and CXCL9 were downregulated by BBR intervention, while, G-17 increased significantly. Histological injuries of gastric mucosa induced by H. pylori also were alleviated. Moreover, cell viability and morphology changes of GES-1 cells were improved by BBR intervention. In addition, proinflammatory genes and IRF8-IFN-γ signaling axis related genes, including Ifit3, Upp1, USP18, Nlrc5, were suppressed by BBR administration in vitro and in vivo. The proteins expression related to IRF8-IFN-γ signaling axis, including Ifit3, IRF1 and Ifit1 were downregulated by BBR intervention.
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Affiliation(s)
- Tao Yang
- College of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, No. 37, 12 Bridge Road, Chengdu 610075, PR China
| | - Ruilin Wang
- Integrative Medical Center, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Jianzhong Zhang
- Center of Disease Control and Prevention, National Institute for Communicable Disease Control and Prevention, Beijing 100039, PR China
| | - Chunmei Bao
- Division of Clinical Microbiology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Juling Zhang
- Division of Clinical Microbiology, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Ruisheng Li
- Research Center for Clinical and Translational Medicine, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Xing Chen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Shihua Wu
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Jianxia Wen
- College of Pharmacy, Chengdu University of Traditional Chinese Medicine, Chengdu 611137, PR China
| | - Shizhang Wei
- Department of Pharmacy, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Haotian Li
- Department of Pharmacy, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Huadan Cai
- Department of Pharmacy, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China
| | - Xiangdong Yang
- Colorectal and Anal Surgery, Chengdu Anorectal Hospital, No 152 Daqiang East Street, Taisheng South Road, Chengdu 610075, PR China.
| | - Yanling Zhao
- Department of Pharmacy, The Fifth Medical Center of PLA General Hospital, Beijing 100039, PR China.
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12
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Gao X, Colicino E, Shen J, Just AC, Nwanaji-Enwerem JC, Wang C, Coull B, Lin X, Vokonas P, Zheng Y, Hou L, Schwartz J, Baccarelli AA. Accelerated DNA methylation age and the use of antihypertensive medication among older adults. Aging (Albany NY) 2019; 10:3210-3228. [PMID: 30414594 PMCID: PMC6286862 DOI: 10.18632/aging.101626] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2018] [Accepted: 10/27/2018] [Indexed: 02/07/2023]
Abstract
The discrepancy of DNA methylation age (DNAmAge) with chronological age (termed as age acceleration, AA) has been identified to be associated with many aging-related health outcomes including hypertension. Since taking antihypertensive medication (AHM) could prevent aging-related diseases caused by hypertension, we hypothesized that using AHM could also reduce the AA. We examined this hypothesis among 546 males aged 55–85 years by exploring the associations of AHM use with AA and its change rate (ΔAA) in two visits with a median follow-up of 3.86 years. Horvath DNAmAge was derived from DNA methylation profiles measured by Illumina HumanMethylation450 BeadChip and information on AHM use was collected by physician interview. A general decreasing pattern of AA was observed between the two visits. After the fully adjusting for potential covariates including hypertension, any AHM use showed a cross-sectional significant association with higher AA at each visit, as well as a longitudinal association with increased ΔAA between visits. Particularly, relative to participants who never took any AHM, individuals with continuous AHM use had a higher ΔAA of 0.6 year/chronological year. This finding underlines that DNAmAge and AA may not be able to capture the preventive effects of AHMs that reduce cardiovascular risks and mortality.
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Affiliation(s)
- Xu Gao
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
| | - Elena Colicino
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jincheng Shen
- Department of Population Health Sciences, University of Utah, School of Medicine, Salt Lake City, UT 84132, USA
| | - Allan C Just
- Department of Environmental Medicine and Public Health, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Jamaji C Nwanaji-Enwerem
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Cuicui Wang
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Brent Coull
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Xihong Lin
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Pantel Vokonas
- Veterans Affairs Normative Aging Study, Veterans Affairs Boston Healthcare System, Department of Medicine, Boston University School of Medicine, Boston, MA 02118, USA
| | - Yinan Zheng
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Lifang Hou
- Department of Preventive Medicine, Feinberg School of Medicine, Northwestern University, Chicago, IL 60611, USA
| | - Joel Schwartz
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA 02115, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Mailman School of Public Health, Columbia University, New York, NY 10032, USA
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13
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Abstract
Identifying and validating molecular targets of interventions that extend the human health span and lifespan has been difficult, as most clinical biomarkers are not sufficiently representative of the fundamental mechanisms of ageing to serve as their indicators. In a recent breakthrough, biomarkers of ageing based on DNA methylation data have enabled accurate age estimates for any tissue across the entire life course. These 'epigenetic clocks' link developmental and maintenance processes to biological ageing, giving rise to a unified theory of life course. Epigenetic biomarkers may help to address long-standing questions in many fields, including the central question: why do we age?
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14
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DNA Methylation Age-Environmental Influences, Health Impacts, and Its Role in Environmental Epidemiology. Curr Environ Health Rep 2019; 5:317-327. [PMID: 30047075 DOI: 10.1007/s40572-018-0203-2] [Citation(s) in RCA: 58] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
PURPOSE OF REVIEW DNA methylation-based aging biomarkers are valuable tools for evaluating the aging process from a molecular perspective. These epigenetic aging biomarkers can be evaluated across the lifespan and are tissue specific. This review examines the literature relating environmental exposures to DNA methylation-based aging biomarkers and also the literature evaluating these biomarkers as predictors of health outcomes. RECENT FINDINGS Multiple studies evaluated the association between air pollution and DNA methylation age and consistently observed that higher exposures are associated with elevated DNA methylation age. Psychosocial exposures, e.g., traumas and adolescent adversity, and infections are also associated with epigenetic aging. DNA methylation age has been repeatedly associated with mortality, cancer, and cognitive impairment. DNA methylation age is responsive to the environment and predictive of health outcomes. Studies are still needed to evaluate whether DNA methylation age acts as a mediator or modifier of environmental health effects and to understand the impact of factors such as race, gender, and genetics.
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15
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Fransquet PD, Wrigglesworth J, Woods RL, Ernst ME, Ryan J. The epigenetic clock as a predictor of disease and mortality risk: a systematic review and meta-analysis. Clin Epigenetics 2019; 11:62. [PMID: 30975202 PMCID: PMC6458841 DOI: 10.1186/s13148-019-0656-7] [Citation(s) in RCA: 168] [Impact Index Per Article: 33.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2018] [Accepted: 03/25/2019] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Ageing is one of the principal risk factors for many chronic diseases. However, there is considerable between-person variation in the rate of ageing and individual differences in their susceptibility to disease and death. Epigenetic mechanisms may play a role in human ageing, and DNA methylation age biomarkers may be good predictors of age-related diseases and mortality risk. The aims of this systematic review were to identify and synthesise the evidence for an association between peripherally measured DNA methylation age and longevity, age-related disease, and mortality risk. METHODS A systematic search was conducted in line with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Using relevant search terms, MEDLINE, Embase, Cochrane Central Register of Controlled Trials, and PsychINFO databases were searched to identify articles meeting the inclusion criteria. Studies were assessed for bias using Joanna Briggs Institute critical appraisal checklists. Data was extracted from studies measuring age acceleration as a predictor of age-related diseases, mortality or longevity, and the findings for similar outcomes compared. Using Review Manager 5.3 software, two meta-analyses (one per epigenetic clock) were conducted on studies measuring all-cause mortality. RESULTS Twenty-three relevant articles were identified, including a total of 41,607 participants. Four studies focused on ageing and longevity, 11 on age-related disease (cancer, cardiovascular disease, and dementia), and 11 on mortality. There was some, although inconsistent, evidence for an association between increased DNA methylation age and risk of disease. Meta-analyses indicated that each 5-year increase in DNA methylation age was associated an 8 to 15% increased risk of mortality. CONCLUSION Due to the small number of studies and heterogeneity in study design and outcomes, the association between DNA methylation age and age-related disease and longevity is inconclusive. Increased epigenetic age was associated with mortality risk, but positive publication bias needs to be considered. Further research is needed to determine the extent to which DNA methylation age can be used as a clinical biomarker.
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Affiliation(s)
- Peter D Fransquet
- Department of Epidemiology and Preventive Medicine, Monash University, ASPREE, Level 5, The Alfred Centre, 99 Commercial Road, Melbourne, Victoria, 3004, Australia.,Disease Epigenetics, Murdoch Childrens Research Institute, The University of Melbourne, Parkville, Victoria, 3052, Australia
| | - Jo Wrigglesworth
- Department of Epidemiology and Preventive Medicine, Monash University, ASPREE, Level 5, The Alfred Centre, 99 Commercial Road, Melbourne, Victoria, 3004, Australia
| | - Robyn L Woods
- Department of Epidemiology and Preventive Medicine, Monash University, ASPREE, Level 5, The Alfred Centre, 99 Commercial Road, Melbourne, Victoria, 3004, Australia
| | - Michael E Ernst
- Department of Pharmacy Practice and Science, College of Pharmacy, The University of Iowa, Iowa City, IA, USA.,Department of Family Medicine, Carver College of Medicine, The University of Iowa, Iowa City, IA, USA
| | - Joanne Ryan
- Department of Epidemiology and Preventive Medicine, Monash University, ASPREE, Level 5, The Alfred Centre, 99 Commercial Road, Melbourne, Victoria, 3004, Australia. .,Disease Epigenetics, Murdoch Childrens Research Institute, The University of Melbourne, Parkville, Victoria, 3052, Australia. .,INSERM, U1061, Neuropsychiatrie, Recherche Clinique et Epidémiologique, Neuropsychiatry: Research Epidemiological and Clinic, Université Montpellier, 34000, Montpellier, France.
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16
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Muhsen K, Sinnreich R, Merom D, Beer-Davidson G, Nassar H, Cohen D, Kark JD. Prevalence and determinants of serological evidence of atrophic gastritis among Arab and Jewish residents of Jerusalem: a cross-sectional study. BMJ Open 2019; 9:e024689. [PMID: 30700483 PMCID: PMC6352795 DOI: 10.1136/bmjopen-2018-024689] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
OBJECTIVE Understanding the correlates of premalignant gastric lesions is essential for gastric cancer prevention. We examined the prevalence and correlates of serological evidence of atrophic gastritis, a premalignant gastric condition, using serum pepsinogens (PGs) in two populations with differing trends in gastric cancer incidence. METHODS In a cross-sectional study, using ELISA we measured serum PGI and PGII concentrations (Biohit, Finland), Helicobacter pylori serum IgG and cytotoxin-associated gene A (CagA) antigen IgG antibodies in archived sera of 692 Jews and 952 Arabs aged 25-78 years, randomly selected from Israel's population registry in age-sex and population strata. Multivariable logistic regression analyses were performed. RESULTS Using cut-offs of PGI <30µg/L or PGI:PGII <3.0, the prevalence of atrophic gastritis was higher among Arab than Jewish participants: 8.8% (95% CIs 7.2% to 10.8%) vs 5.9% (95% CI 4.4% to 7.9%), increasing with age in both groups (p<0.001 for trend). Among Jewish participants, infection with H. pylori CagA phenotype was positively related to atrophic gastritis: adjusted OR (aOR) 2.16 (95% CI 0.94 to 4.97), but not to non-CagA infections aOR 1.17 (95% CI 0.53 to 2.55). The opposite was found among Arabs: aOR 0.09 (95% CI 0.03 to 0.24) for CagA positive and aOR 0.15 (95% CI 0.06 to 0.41) for Cag A negative phenotypes (p<0.001 for interaction). Women had a higher atrophic gastritis prevalence than men. Obesity and smoking were not significantly related to atrophic gastritis; physical activity tended to be inversely associated in Arabs (p=0.08 for interaction). CONCLUSIONS The prevalence of atrophic gastritis was higher among Arabs than Jews and was differently associated with the CagA phenotype.
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Affiliation(s)
- Khitam Muhsen
- Epidemiology and Preventive Medicine, Tel Aviv University Sackler Faculty of Medicine, Tel Aviv, Israel
| | - Ronit Sinnreich
- Braun School of Public Health and Community Medicine, Hebrew University-Hadassah, Jerusalem, Israel
| | - Dafna Merom
- School of Science and Health, Western Sydney University, Sydney, Australia
| | - Gany Beer-Davidson
- Epidemiology and Preventive Medicine, Tel Aviv University Sackler Faculty of Medicine, Tel Aviv, Israel
| | - Hisham Nassar
- St. Joseph Hospital, East Jerusalem and Department of Cardiology, Hadassah-Hebrew University Medical Center, Ein Karem, Jerusalem, Israel
| | - Dani Cohen
- Epidemiology and Preventive Medicine, Tel Aviv University Sackler Faculty of Medicine, Tel Aviv, Israel
| | - Jeremy D Kark
- Braun School of Public Health and Community Medicine, Hebrew University-Hadassah, Jerusalem, Israel
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17
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Nwanaji-Enwerem JC, Weisskopf MG, Baccarelli AA. Multi-tissue DNA methylation age: Molecular relationships and perspectives for advancing biomarker utility. Ageing Res Rev 2018; 45:15-23. [PMID: 29698722 PMCID: PMC6047923 DOI: 10.1016/j.arr.2018.04.005] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 03/29/2018] [Accepted: 04/18/2018] [Indexed: 12/31/2022]
Abstract
The multi-tissue DNA methylation estimator of chronological age (DNAm-age) has been associated with a wide range of exposures and health outcomes. Still, it is unclear how DNAm-age can have such broad relationships and how it can be best utilized as a biomarker. Understanding DNAm-age's molecular relationships is a promising approach to address this critical knowledge gap. In this review, we discuss the existing literature regarding DNAm-age's molecular relationships in six major categories: animal model systems, cancer processes, cellular aging processes, immune system processes, metabolic processes, and nucleic acid processes. We also present perspectives regarding the future of DNAm-age research, including the need to translate a greater number of ongoing research efforts to experimental and animal model systems.
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Affiliation(s)
- Jamaji C Nwanaji-Enwerem
- Department of Environmental Health, Harvard T.H. Chan School of Public Health and MD-PhD Program, Harvard Medical School, Boston, MA, USA.
| | - Marc G Weisskopf
- Department of Environmental Health and Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Andrea A Baccarelli
- Department of Environmental Health Sciences, Columbia Mailman School of Public Health, New York, NY, USA
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18
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Declerck K, Vanden Berghe W. Back to the future: Epigenetic clock plasticity towards healthy aging. Mech Ageing Dev 2018; 174:18-29. [PMID: 29337038 DOI: 10.1016/j.mad.2018.01.002] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/08/2018] [Accepted: 01/10/2018] [Indexed: 12/22/2022]
Abstract
Aging is the most important risk factor for major human lifestyle diseases, including cancer, neurological and cardiometabolic disorders. Due to the complex interplay between genetics, lifestyle and environmental factors, some individuals seem to age faster than others, whereas centenarians seem to have a slower aging process. Therefore, a biochemical biomarker reflecting the relative biological age would be helpful to predict an individual's health status and aging disease risk. Although it is already known for years that cumulative epigenetic changes occur upon aging, DNA methylation patterns were only recently used to construct an epigenetic clock predictor for biological age, which is a measure of how well your body functions compared to your chronological age. Moreover, the epigenetic DNA methylation clock signature is increasingly applied as a biomarker to estimate aging disease susceptibility and mortality risk. Finally, the epigenetic clock signature could be used as a lifestyle management tool to monitor healthy aging, to evaluate preventive interventions against chronic aging disorders and to extend healthy lifespan. Dissecting the mechanism of the epigenetic aging clock will yield valuable insights into the aging process and how it can be manipulated to improve health span.
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Affiliation(s)
- Ken Declerck
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES), Department of Biomedical Sciences, University of Antwerp (UA), Belgium
| | - Wim Vanden Berghe
- Laboratory of Protein Chemistry, Proteomics and Epigenetic Signaling (PPES), Department of Biomedical Sciences, University of Antwerp (UA), Belgium.
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19
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Lai H, Huang J, Xu Y, Zhang J, Chen Z, Xi F, Li A, Liu S. Association between patient characteristics and magnetically controlled capsule endoscopy findings. Saudi J Gastroenterol 2018; 24:189-195. [PMID: 29652031 PMCID: PMC5985639 DOI: 10.4103/sjg.sjg_509_17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
BACKGROUND/AIM Magnetically-controlled capsule endoscopy (MCE) is a potential option for the evaluation of gastric diseases in cases that are unsuited for conventional endoscopy, avoiding discomfort, sedation, and related complications. This retrospective study investigated associations between MCE findings and patient gender, age, and inpatient/outpatient status. PATIENTS AND METHODS The data of 580 consecutive patients who underwent MCE from 2015 to 2016 were analyzed. Data included age, gender, indication for MCE, inpatient/outpatient status, overall coverage of gastric anatomical landmarks, and comorbid conditions. RESULTS Compared with outpatients, inpatients had a higher rate of overall significant MCE findings (P = 0.014), polyp (P = 0.03), and ulceration (P = 0.003). MCE findings of the inpatient men and women were similar. Considering all patients, the percentage with ulceration was significantly higher in men than in women (P = 0.004), and men were younger (P < 0.001). Compared with younger patients, those aged ≥60 years had significantly higher rates of overall significant findings, mainly polyp and angiodysplasia. CONCLUSIONS Compared with outpatients, the inpatients showed higher overall significant findings. Men undergoing MCE were younger than the women, and more likely to have ulcerations. Older patients, whether outpatient or inpatient, had higher rates of significant findings, mainly polyp and angiodysplasia.
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Affiliation(s)
- Huasheng Lai
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Junsheng Huang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Yangzhi Xu
- Department of Gastroenterology, The Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, People's Republic of China
| | - Jie Zhang
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Zhenyu Chen
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Fengcheng Xi
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China
| | - Aimin Li
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China,Address for correspondence: Dr. Side Liu, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China. E-mail:
Dr. Aimin Li, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China. E-mail:
| | - Side Liu
- Department of Gastroenterology, Guangdong Provincial Key Laboratory of Gastroenterology, Nanfang Hospital, Southern Medical University, Guangzhou, People's Republic of China,Address for correspondence: Dr. Side Liu, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China. E-mail:
Dr. Aimin Li, Department of Gastroenterology, Nanfang Hospital, Southern Medical University, No. 1838, Guangzhou Avenue North, Guangzhou, People's Republic of China. E-mail:
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