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Du J, Zhang J, Liu D, Gao L, Liao H, Chu L, Lin J, Li W, Meng X, Zou F, Cai S, Zou M, Dong H. 1G6-D7 Inhibits Homologous Recombination Repair by Targeting Extracellular HSP90α to Promote Apoptosis in Non-Small Cell Lung Cancer. ENVIRONMENTAL TOXICOLOGY 2024. [PMID: 38899512 DOI: 10.1002/tox.24356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2024] [Revised: 05/07/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024]
Abstract
Despite recent advances in treatment, non-small cell lung cancer (NSCLC) continues to have a high mortality rate. Currently, NSCLC pathogenesis requires further investigation, and therapeutic drugs are still under development. Homologous recombination repair (HRR) repairs severe DNA double-strand breaks. Homologous recombination repair deficiency (HRD) occurs when HRR is impaired and causes irreparable double-strand DNA damage, leading to genomic instability and increasing the risk of cancer development. Poly(ADP-ribose) polymerase (PARP) inhibitors can effectively treat HRD-positive tumors. Extracellular heat shock protein 90α (eHSP90α) is highly expressed in hypoxic environments and inhibits apoptosis, thereby increasing cellular tolerance. Here, we investigated the relationship between eHSP90α and HRR in NSCLC. DNA damage models were established in NSCLC cell lines (A549 and H1299). The activation of DNA damage and HRR markers, apoptosis, proliferation, and migration were investigated. In vivo tumor models were established using BALB/c nude mice and A549 cells. We found that human recombinant HSP90α stimulation further activated HRR and reduced DNA damage extent; however, eHSP90α monoclonal antibody, 1G6-D7, effectively inhibited HRR. HRR inhibition and increased apoptosis were observed after LRP1 knockdown; this effect could not be reversed with hrHSP90α addition. The combined use of 1G6-D7 and olaparib caused significant apoptosis and HRR inhibition in vitro and demonstrated promising anti-tumor effects in vivo. Extracellular HSP90α may be involved in HRR in NSCLC through LRP1. The combined use of 1G6-D7 and PARP inhibitors may exert anti-tumor effects by inhibiting DNA repair and further inducing apoptosis of NSCLC cells.
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Affiliation(s)
- Jiangzhou Du
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jinming Zhang
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Dongyu Liu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lin Gao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hua Liao
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lanhe Chu
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Jie Lin
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou, China
| | - Wei Li
- Department of Dermatology, The USC-Norris Comprehensive Cancer Center, University of Southern California Keck Medical Center, California, Los Angeles, USA
| | - Xiaojing Meng
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Fei Zou
- Department of Occupational Health and Occupational Medicine, Guangdong Provincial Key Laboratory of Tropical Disease Research, School of Public Health, Southern Medical University, Guangzhou, China
| | - Shaoxi Cai
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Mengchen Zou
- Department of Endocrinology and Metabolism, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Hangming Dong
- Chronic Airways Diseases Laboratory, Department of Respiratory and Critical Care Medicine, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Lu W, Aihaiti A, Abudukeranmu P, Liu Y, Gao H. Unravelling the role of intratumoral bacteria in digestive system cancers: current insights and future perspectives. J Transl Med 2024; 22:545. [PMID: 38849871 PMCID: PMC11157735 DOI: 10.1186/s12967-024-05320-6] [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: 04/07/2024] [Accepted: 05/18/2024] [Indexed: 06/09/2024] Open
Abstract
Recently, research on the human microbiome, especially concerning the bacteria within the digestive system, has substantially advanced. This exploration has unveiled a complex interplay between microbiota and health, particularly in the context of disease. Evidence suggests that the gut microbiome plays vital roles in digestion, immunity and the synthesis of vitamins and neurotransmitters, highlighting its significance in maintaining overall health. Conversely, disruptions in these microbial communities, termed dysbiosis, have been linked to the pathogenesis of various diseases, including digestive system cancers. These bacteria can influence cancer progression through mechanisms such as DNA damage, modulation of the tumour microenvironment, and effects on the host's immune response. Changes in the composition and function within the tumours can also impact inflammation, immune response and cancer therapy effectiveness. These findings offer promising avenues for the clinical application of intratumoral bacteria for digestive system cancer treatment, including the potential use of microbial markers for early cancer detection, prognostication and the development of microbiome-targeted therapies to enhance treatment outcomes. This review aims to provide a comprehensive overview of the pivotal roles played by gut microbiome bacteria in the development of digestive system cancers. Additionally, we delve into the specific contributions of intratumoral bacteria to digestive system cancer development, elucidating potential mechanisms and clinical implications. Ultimately, this review underscores the intricate interplay between intratumoral bacteria and digestive system cancers, underscoring the pivotal role of microbiome research in transforming diagnostic, prognostic and therapeutic paradigms for digestive system cancers.
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Affiliation(s)
- Weiqin Lu
- General Surgery, Cancer Center, Department of Vascular Surgery, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China
| | | | | | - Yajun Liu
- Aksu First People's Hospital, Xinjiang, China
| | - Huihui Gao
- Cancer Center, Department of Hospital Infection Management and Preventive Medicine, Zhejiang Provincial People's Hospital (Affiliated People's Hospital), Hangzhou Medical College, Hangzhou, Zhejiang, China.
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Jia K, Chen Y, Xie Y, Wang X, Hu Y, Sun Y, Cao Y, Zhang L, Wang Y, Wang Z, Lu Z, Li J, Zhang X, Shen L. Helicobacter pylori and immunotherapy for gastrointestinal cancer. Innovation (N Y) 2024; 5:100561. [PMID: 38379784 PMCID: PMC10878118 DOI: 10.1016/j.xinn.2023.100561] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 12/29/2023] [Indexed: 02/22/2024] Open
Abstract
Helicobacter pylori infection is associated with the risk of gastrointestinal (GI) cancers; however, its impact on immunotherapy for GI cancers remains uncertain. In this study, we included 10,122 patients who underwent 13C-urea breath tests. Among 636 patients with Epstein-Barr virus-negative microsatellite-stable gastric cancer (GC) who were treated with anti-PD-1/PD-L1 therapy, H. pylori-positive patients exhibited significantly longer immune-related progression-free survival (irPFS) compared with H. pylori-negative patients (6.97 months versus 5.03 months, p < 0.001, hazard ratio [HR] 0.76, 95% confidence interval [CI] 0.62-0.95, p = 0.015). Moreover, the H. pylori-positive group demonstrated a trend of 4 months longer median immune-related overall survival (irOS) than the H. pylori-negative group. H. pylori-positive GC displayed higher densities of PD-L1+ cells and nonexhausted CD8+ T cells, indicative of a "hot" tumor microenvironment. Transcriptomic analysis revealed that H. pylori-positive GC shared molecular characteristics similar to those of immunotherapy-sensitive GC. However, H. pylori-positive patients with DNA mismatch repair-deficient (dMMR)/microsatellite instability-high (MSI-H) colorectal adenocarcinoma and esophageal squamous cell carcinoma (ESCC) had shorter irPFS compared with H. pylori-negative patients (16.13 months versus not reached, p = 0.042, HR 2.26, 95% CI 1.13-4.50, p = 0.021 and 5.57 months versus 6.97 months, p = 0.029, HR 1.59, 95% CI 1.14-2.23, p = 0.006, respectively). The difference in irOS between H. pylori-positive and -negative patients had the same trend as that between dMMR/MSI-H colorectal adenocarcinoma and ESCC patients. We also identified a trend of shorter irPFS and irOS in H. pylori-positive liver cancer and pancreatic cancer patients. In summary, our findings supported that H. pylori infection is a beneficial factor for GC immunotherapy by shaping hot tumor microenvironments. However, in dMMR/MSI-H colorectal adenocarcinoma and ESCC patients, H. pylori adversely affects the efficacy of immunotherapy.
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Affiliation(s)
- Keren Jia
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yang Chen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yi Xie
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Xicheng Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yajie Hu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yu Sun
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Pathology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yanshuo Cao
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Liyan Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Yakun Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Zhenghang Wang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Zhihao Lu
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Jian Li
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Xiaotian Zhang
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - Lin Shen
- Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education/Beijing), Department of Gastrointestinal Oncology, Peking University Cancer Hospital & Institute, Beijing 100142, China
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Niveta JPS, Kumar MA, Parvathi VD. Telomere attrition and inflammation: the chicken and the egg story. EGYPTIAN JOURNAL OF MEDICAL HUMAN GENETICS 2022. [DOI: 10.1186/s43042-022-00335-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
Abstract
AbstractThe challenge to improve human life span has progressed with the advent of health care services and technologies. This improvement poses a new challenge of an associated wave of diseases and pathologies that have not been observed or experienced. This has led to rise in geriatric population who are currently facing health challenges that needs to be addressed by the research community. This review focuses primarily on two mechanisms that have contributed to aging and associated pathologies: telomere attrition and inflammatory insults. A strong interplay appears to exist between telomere attrition and inflammation, and this could be the basis of many pathologies associated with increasing age. This creates a scientific dilemma as to what comes first: telomere attrition or inflammation. This review will enthuse the reader to the underlying molecules and mechanisms associated with telomere attrition and inflammation and their contribution to aging.
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Zhao L, Wang S, Zhang N, Zhou J, Mehmood A, Raka RN, Zhou F, Zhao L. The Beneficial Effects of Natural Extracts and Bioactive Compounds on the Gut-Liver Axis: A Promising Intervention for Alcoholic Liver Disease. Antioxidants (Basel) 2022; 11:antiox11061211. [PMID: 35740108 PMCID: PMC9219895 DOI: 10.3390/antiox11061211] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2022] [Revised: 06/15/2022] [Accepted: 06/19/2022] [Indexed: 12/10/2022] Open
Abstract
Alcoholic liver disease (ALD) is a major cause of morbidity and mortality worldwide. It can cause fatty liver (steatosis), steatohepatitis, fibrosis, cirrhosis, and liver cancer. Alcohol consumption can also disturb the composition of gut microbiota, increasing the composition of harmful microbes and decreasing beneficial ones. Restoring eubiosis or preventing dysbiosis after alcohol consumption is an important strategy in treating ALD. Plant natural products and polyphenolic compounds exert beneficial effects on several metabolic disorders associated with ALD. Natural products and related phytochemicals act through multiple pathways, such as modulating gut microbiota, improving redox stress, and anti-inflammation. In the present review article, we gather information on natural extract and bioactive compounds on the gut-liver axis for the possible treatment of ALD. Supplementation with natural extracts and bioactive compounds promoted the intestinal tight junction, protected against the alcohol-induced gut leakiness and inflammation, and reduced endotoxemia in alcohol-exposed animals. Taken together, natural extracts and bioactive compounds have strong potential against ALD; however, further clinical studies are still needed.
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Affiliation(s)
- Liang Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (S.W.); (A.M.); (R.N.R.)
| | - Shaoxuan Wang
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (S.W.); (A.M.); (R.N.R.)
| | - Nanhai Zhang
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (N.Z.); (J.Z.)
| | - Jingxuan Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (N.Z.); (J.Z.)
| | - Arshad Mehmood
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (S.W.); (A.M.); (R.N.R.)
- Department of Food Science and Technology, University of Haripur, Haripur 22620, Pakistan
| | - Rifat Nowshin Raka
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (S.W.); (A.M.); (R.N.R.)
| | - Feng Zhou
- Beijing Key Laboratory of Functional Food from Plant Resources, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; (N.Z.); (J.Z.)
- Correspondence: (F.Z.); (L.Z.)
| | - Lei Zhao
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Engineering and Technology Research Center of Food Additives, School of Food and Health, Beijing Technology and Business University, Beijing 100048, China; (L.Z.); (S.W.); (A.M.); (R.N.R.)
- Correspondence: (F.Z.); (L.Z.)
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Helicobacter pylori promotes gastric cancer progression through the tumor microenvironment. Appl Microbiol Biotechnol 2022; 106:4375-4385. [PMID: 35723694 DOI: 10.1007/s00253-022-12011-z] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2021] [Revised: 05/26/2022] [Accepted: 06/01/2022] [Indexed: 02/05/2023]
Abstract
Gastric cancer (GC) is a leading type of cancer. Although immunotherapy has yielded important recent progress in the treatment of GC, the prognosis remains poor due to drug resistance and frequent recurrence and metastasis. There are multiple known risk factors for GC, and infection with Helicobacter pylori is one of the most significant. The mechanisms underlying the associations of H. pylori and GC remain unclear, but it is well known that infection can alter the tumor microenvironment (TME). The TME and the tumor itself constitute a complete ecosystem, and the TME plays critical roles in tumor progression, metastasis, and drug resistance. H. pylori infection can act synergistically with the TME to cause DNA damage and abnormal expression of multiple genes and activation of signaling pathways. It also modulates the host immune system in ways that enhance the proliferation and metastasis of tumor cells, promote epithelial-mesenchymal transition, inhibit apoptosis, and provide energy support for tumor growth. This review elaborates myriad ways that H. pylori infections promote the occurrence and progression of GC by influencing the TME, providing new directions for immunotherapy treatments for this important disease. KEY POINTS: • H. pylori infections cause DNA damage and affect the repair of the TME to DNA damage. • H. pylori infections regulate oncogenes or activate the oncogenic signaling pathways. • H. pylori infections modulate the immune system within the TME.
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The role of non-Helicobacter pylori bacteria in the pathogenesis of gastroduodenal diseases. Gut Pathog 2022; 14:19. [PMID: 35606878 PMCID: PMC9125830 DOI: 10.1186/s13099-022-00494-0] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 05/04/2022] [Indexed: 02/06/2023] Open
Abstract
Over the past decade, the development of next-generation sequencing for human microbiota has led to remarkable discoveries. The characterization of gastric microbiota has enabled the examination of genera associated with several diseases, including gastritis, precancerous lesions, and gastric cancer. Helicobacter pylori (H. pylori) is well known to cause gastric dysbiosis by reducing diversity, because this bacterium is the predominant bacterium. However, as the diseases developed into more severe stages, such as atrophic gastritis, premalignant lesion, and gastric adenocarcinoma, the dominance of H. pylori began to be displaced by other bacteria, including Streptococcus, Prevotella, Achromobacter, Citrobacter, Clostridium, Rhodococcus, Lactobacillus, and Phyllobacterium. Moreover, a massive reduction in H. pylori in cancer sites was observed as compared with noncancer tissue in the same individual. In addition, several cases of H. pylori-negative gastritis were found. Among these individuals, there was an enrichment of Paludibacter, Dialister, Streptococcus, Haemophilus parainfluenzae, and Treponema. These remarkable findings suggest the major role of gastric microbiota in the development of gastroduodenal diseases and led us to the hypothesis that H. pylori might not be the only gastric pathogen. The gastric microbiota point of view of disease development should lead to a more comprehensive consideration of this relationship.
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Campillo-Gimenez L, Rios-Covian D, Rivera-Nieves J, Kiyono H, Chu H, Ernst PB. Microbial-Driven Immunological Memory and Its Potential Role in Microbiome Editing for the Prevention of Colorectal Cancer. Front Cell Infect Microbiol 2021; 11:752304. [PMID: 34869061 PMCID: PMC8633303 DOI: 10.3389/fcimb.2021.752304] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2021] [Accepted: 10/12/2021] [Indexed: 12/13/2022] Open
Abstract
Over the last several years, many advances have been made in understanding the role of bacteria in the pathogenesis of gastrointestinal cancers. Beginning with Helicobacter pylori being recognized as the first bacterial carcinogen and the causative agent of most gastric cancers, more recent studies have examined the role of enteric microbes in colorectal cancer. In the digestive tract, these communities are numerous and have a complex interrelationship with local immune/inflammatory responses that impact the health of the host. As modifying the microbiome in the stomach has decreased the risk of gastric cancer, modifying the distal microbiome may decrease the risk of colorectal cancers. To date, very few studies have considered the notion that mucosal lymphocyte-dependent immune memory may confound attempts to change the microbial components in these communities. The goal of this review is to consider some of the factors impacting host-microbial interactions that affect colorectal cancer and raise questions about how immune memory responses to the local microbial consortium affect any attempt to modify the composition of the intestinal microbiome.
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Affiliation(s)
- Laure Campillo-Gimenez
- Department of Pathology, University of California San Diego, San Diego, CA, United States
| | - David Rios-Covian
- Department of Pathology, University of California San Diego, San Diego, CA, United States
| | - Jesus Rivera-Nieves
- Department of Medicine, Division of Gastroenterology, University of California San Diego, San Diego, CA, United States
- San Diego Veterans Affairs (VA) Medical Center, San Diego, CA, United States
| | - Hiroshi Kiyono
- Department of Medicine, Division of Gastroenterology, University of California San Diego, San Diego, CA, United States
- CU-UCSD, Center for Mucosal Immunology, Allergy and Vaccine Development, University of California San Diego, San Diego, CA, United States
- Future Medicine Education and Research Organization, Chiba University, Chiba, Japan
| | - Hiutung Chu
- Department of Pathology, University of California San Diego, San Diego, CA, United States
- CU-UCSD, Center for Mucosal Immunology, Allergy and Vaccine Development, University of California San Diego, San Diego, CA, United States
| | - Peter B. Ernst
- Department of Pathology, University of California San Diego, San Diego, CA, United States
- San Diego Veterans Affairs (VA) Medical Center, San Diego, CA, United States
- CU-UCSD, Center for Mucosal Immunology, Allergy and Vaccine Development, University of California San Diego, San Diego, CA, United States
- Division of Comparative Pathology and Medicine, University of California San Diego, San Diego, CA, United States
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Park JM, Han YM, Oh JY, Lee DY, Choi SH, Hahm KB. Transcriptome profiling implicated in beneficiary actions of kimchi extracts against Helicobacter pylori infection. J Clin Biochem Nutr 2021; 69:171-187. [PMID: 34616109 PMCID: PMC8482382 DOI: 10.3164/jcbn.20-116] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Accepted: 11/15/2020] [Indexed: 12/12/2022] Open
Abstract
Dietary intervention to prevent Helicobacter pylori (H. pylori)-gastric cancer might be ideal because of no risk of bacterial resistance, safety, and rejuvenating action of atrophic gastritis. We have published data about the potential of fermented kimchi as nutritional approach for H. pylori. Hence recent advances in RNAseq analysis lead us to investigate the transcriptome analysis to explain these beneficiary actions of kimchi. gastric cells were infected with either H. pylori or H. pylori plus kimchi. 943 genes were identified as significantly increased or decreased genes according to H. pylori infection and 68 genes as significantly changed between H. pylori infection and H. pylori plus kimchi (p<0.05). Gene classification and Medline database showed DLL4, FGF18, PTPRN, SLC7A11, CHAC1, FGF21, ASAN, CTH, and CREBRF were identified as significantly increased after H. pylori, but significantly decreased with kimchi and NEO1, CLDN8, KLRG1, and IGFBP1 were identified as significantly decreased after H. pylori, but increased with kimchi. After KEGG and STRING-GO analysis, oxidative stress, ER stress, cell adhesion, and apoptosis genes were up-regulated with H. pylori infection but down-regulated with kimchi, whereas tissue regeneration, cellular anti-oxidative response, and anti-inflammation genes were reversely regulated with kimchi (p<0.01). Conclusively, transcriptomes of H. pylori plus kimchi showed significant biological actions.
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Affiliation(s)
- Jong Min Park
- Daejeon University School of Oriental Medicine, Daejeon, 34520, Korea
| | - Young Min Han
- Seoul Center, Korea Basic Science Institute, Seoul, 02456, Korea
| | - Ji Young Oh
- CJ Food Research Center, Suwon, 16471, Korea
| | | | | | - Ki Baik Hahm
- CHA Cancer Preventive Research Center, CHA Bio Complex, Pangyo, 13497, Korea
- Medpacto Research Institute, Medpacto, Seoul, 06668, Korea
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Liu C, Yuan ZY, Yuan H, Wu KX, Cao B, Ren KY, Cui MJ, Liu JH, Chen HX, Pang YW. Status of Gene Methylation and Polymorphism in Different Courses of Ulcerative Colitis and Their Comparison with Sporadic Colorectal Cancer. Inflamm Bowel Dis 2021; 27:522-529. [PMID: 32793962 DOI: 10.1093/ibd/izaa203] [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: 03/02/2020] [Indexed: 12/09/2022]
Abstract
BACKGROUND The objective of this study is to explore the common genetic and epigenetic mechanism of ulcerative colitis (UC) and sporadic colorectal cancer (SCRC) by observing genes methylation level and single nucleotide polymorphisms (SNPs) of different disease courses in UC and SCRC. METHODS Two hundred subjects were enrolled, including 40 in the healthy control (HC) group, 50 in the short disease course UC group (SUC), 52 in the long disease course UC group (LUC), and 58 in the SCRC group. Methylation-specific polymerase chain reaction was used to detect the methylation of MINT1 and cyclooxygenase 2 (COX-2) gene. Single nucleotide polymorphisms of interleukin (IL)-23R rs10889677 and IL-1β rs1143627 were detected by Sanger sequencing. RESULTS Compared with HCs (32.5%), methylation level of MINT1 was significantly increased in SCRC (67.2%; P = 0.001) and was a risk factor for CRC (odds ratio, [OR] 4.26). The methylation ratios of COX-2 were 95.0%, 58.0%, 23.1%, and 24.1% in HC, SUC, LUC, and SCRC, respectively, which were negatively correlated with the disease course of UC (r = -0.290). Hypermethylation of COX-2 was a protective factor for SUC (OR, 0.11), LUC (OR, 0.02), and SCRC (OR, 0.03; P < 0.05). Compared with HCs, rs10889677 allele A was a risk factor for SUC and LUC, and rs1143627 allele T was a protective factor for SUC and LUC. Genotype TT was a protective factor for SUC. CONCLUSION The hypomethylation of COX-2 gene was a common risk factor and epigenetic modification for UC and SCRC, which might be one of the mechanisms through which UC patients were susceptible to CRC. The hypermethylation of MINT1 was a risk factor for SCRC but not for UC; alleles of IL-23Rrs10889677 and IL-1βrs1143627 were related to UC but not to SCRC.
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Affiliation(s)
- Chen Liu
- Departments of School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Zi-Ying Yuan
- Department of Gastroenterology, Peking University Third Hospital, Haidian District, Beijing, China
| | - Hao Yuan
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ke-Xiang Wu
- Department of Electrophysiology, The Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China
| | - Bin Cao
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ke-Yu Ren
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Ming-Juan Cui
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Jun-Heng Liu
- Department of Gastroenterology, the Affiliated Hospital of Qingdao University, Qingdao, Shandong, China
| | - Hai-Xing Chen
- Departments of School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
| | - Yao-Wei Pang
- Departments of School of Clinical Medicine, Weifang Medical University, Weifang, Shandong, China
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Benedetti F, Curreli S, Gallo RC, Zella D. Tampering of Viruses and Bacteria with Host DNA Repair: Implications for Cellular Transformation. Cancers (Basel) 2021; 13:E241. [PMID: 33440726 PMCID: PMC7826954 DOI: 10.3390/cancers13020241] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 02/07/2023] Open
Abstract
A reduced ability to properly repair DNA is linked to a variety of human diseases, which in almost all cases is associated with an increased probability of the development of cellular transformation and cancer. DNA damage, that ultimately can lead to mutations and genomic instability, is due to many factors, such as oxidative stress, metabolic disorders, viral and microbial pathogens, excess cellular proliferation and chemical factors. In this review, we examine the evidence connecting DNA damage and the mechanisms that viruses and bacteria have evolved to hamper the pathways dedicated to maintaining the integrity of genetic information, thus affecting the ability of their hosts to repair the damage(s). Uncovering new links between these important aspects of cancer biology might lead to the development of new targeted therapies in DNA-repair deficient cancers and improving the efficacy of existing therapies. Here we provide a comprehensive summary detailing the major mechanisms that viruses and bacteria associated with cancer employ to interfere with mechanisms of DNA repair. Comparing these mechanisms could ultimately help provide a common framework to better understand how certain microorganisms are involved in cellular transformation.
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Affiliation(s)
- Francesca Benedetti
- Institute of Human Virology and Global Virus Network Center, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
| | - Sabrina Curreli
- Institute of Human Virology and Global Virus Network Center, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (S.C.); (R.C.G.)
| | - Robert C. Gallo
- Institute of Human Virology and Global Virus Network Center, Department of Medicine, University of Maryland School of Medicine, Baltimore, MD 21201, USA; (S.C.); (R.C.G.)
| | - Davide Zella
- Institute of Human Virology and Global Virus Network Center, Department of Biochemistry and Molecular Biology, University of Maryland School of Medicine, Baltimore, MD 21201, USA;
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12
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Zhuang H, Yao C, Zhao X, Chen X, Yang Y, Huang S, Pan L, Du A, Yang Y. DNA double-strand breaks in the Toxoplasma gondii-infected cells by the action of reactive oxygen species. Parasit Vectors 2020; 13:490. [PMID: 32988387 PMCID: PMC7523337 DOI: 10.1186/s13071-020-04324-7] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2020] [Accepted: 08/30/2020] [Indexed: 12/12/2022] Open
Abstract
BACKGROUND Toxoplasma gondii is an obligate parasite of all warm-blooded animals around the globe. Once infecting a cell, it manipulates the host's DNA damage response that is yet to be elucidated. The objectives of the present study were three-fold: (i) to assess DNA damages in T. gondii-infected cells in vitro; (ii) to ascertain causes of DNA damage in T. gondii-infected cells; and (iii) to investigate activation of DNA damage responses during T. gondii infection. METHODS HeLa, Vero and HEK293 cells were infected with T. gondii at a multiplicity of infection (MOI) of 10:1. Infected cells were analyzed for a biomarker of DNA double-strand breaks (DSBs) γH2AX at 10 h, 20 h or 30 h post-infection using both western blot and immunofluorescence assay. Reactive oxygen species (ROS) levels were measured using 2',7'-dichlorodihydrofluorescein diacetate (H2DCFDA), and ROS-induced DNA damage was inhibited by a ROS inhibitor N-acetylcysteine (NAC). Lastly, DNA damage responses were evaluated by detecting the active form of ataxia telangiectasia mutated/checkpoint kinase 2 (ATM/CHK2) by western blot. RESULTS γH2AX levels in the infected HeLa cells were significantly increased over time during T. gondii infection compared to uninfected cells. NAC treatment greatly reduced ROS and concomitantly diminished γH2AX in host cells. The phosphorylated ATM/CHK2 were elevated in T. gondii-infected cells. CONCLUSIONS Toxoplasma gondii infection triggered DNA DSBs with ROS as a major player in host cells in vitro. It also activated DNA damage response pathway ATM/CHK2. Toxoplasma gondii manages to keep a balance between survival and apoptosis of its host cells for the benefit of its own survival.
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Affiliation(s)
- Haohan Zhuang
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Chaoqun Yao
- Departments of Biomedical Sciences and One Health Center for Zoonoses and Tropical Veterinary Medicine, Ross University School of Veterinary Medicine, P.O. Box 334, Basseterre, West Indies, Saint Kitts and Nevis
| | - Xianfeng Zhao
- Animals & Plant Inspection and Quarantine Technology Center of Shenzhen Customs, Shenzhen, 518045, PR China
| | - Xueqiu Chen
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Yimin Yang
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Siyang Huang
- Institute of Comparative Medicine, College of Veterinary Medicine, Yangzhou University, and Jiangsu Co-innovation Center for Prevention and Control of Important Animal Infectious Diseases and Zoonosis, and Jiangsu Key Laboratory of Zoonosis, Yangzhou, 225009, Jiangsu Province, PR China
| | - Lingtao Pan
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China
| | - Aifang Du
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China.
| | - Yi Yang
- Institute of Preventive Veterinary Medicine, Zhejiang Provincial Key Laboratory of Preventive Veterinary Medicine, College of Animal Sciences, Zhejiang University, Hangzhou, 310058, PR China.
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13
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Liu Y, Luo Y, Wang X, Luo L, Sun K, Zeng L. Gut Microbiome and Metabolome Response of Pu-erh Tea on Metabolism Disorder Induced by Chronic Alcohol Consumption. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:6615-6627. [PMID: 32419453 DOI: 10.1021/acs.jafc.0c01947] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
This study investigated the protective effects of pu-erh tea extract (PTE) on alcohol-induced microbiomic and metabolomic disorders. In chronic alcohol-exposed mice, PTE ameliorated chronic alcoholic consumption-induced oxidative stress, inflammation, lipid accumulation, and liver and colon damage through modulating microbiomic and metabolomic responses. PTE restored the alcohol-induced fecal microbiota dysbiosis by elevating the relative abundance of potentially beneficial bacteria, for example, Bifidobacterium and Allobaculum, and decreasing the relative abundance of potentially harmful bacteria, for example, Helicobacter and Bacteroides. The alcohol-induced metabolomic disorder was modulated by PTE, which was characterized by regulations of lipid metabolism (sphingolipid, glycerophospholipid, and linoleic acid metabolism), amino acid metabolism (phenylalanine and tryptophan metabolism), and purine metabolism. Besides, the bacterial metabolites of phytochemicals in PTE might contribute to the protective effects of PTE. Overall, PTE could be a functional beverage to treat chronic alcohol consumption-induced microbiomic and metabolomic disorders.
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Affiliation(s)
- Yan Liu
- College of Food Science, Southwest University, Beibei, Chongqing 400715, People's Republic of China
| | - Yakun Luo
- Tea Research Institute of Puer, Puer, Yunnan 665000, People's Republic of China
| | - Xinghua Wang
- Tea Research Institute of Puer, Puer, Yunnan 665000, People's Republic of China
| | - Liyong Luo
- College of Food Science, Southwest University, Beibei, Chongqing 400715, People's Republic of China
- Tea Research Institute, Southwest University, Beibei, Chongqing 400715, People's Republic of China
| | - Kang Sun
- College of Food Science, Southwest University, Beibei, Chongqing 400715, People's Republic of China
- Tea Research Institute, Southwest University, Beibei, Chongqing 400715, People's Republic of China
| | - Liang Zeng
- College of Food Science, Southwest University, Beibei, Chongqing 400715, People's Republic of China
- Tea Research Institute, Southwest University, Beibei, Chongqing 400715, People's Republic of China
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14
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Hu L, Jin L, Xia D, Zhang Q, Ma L, Zheng H, Xu T, Chang S, Li X, Xun Z, Xu Y, Zhang C, Chen F, Wang S. Nitrate ameliorates dextran sodium sulfate-induced colitis by regulating the homeostasis of the intestinal microbiota. Free Radic Biol Med 2020; 152:609-621. [PMID: 31811920 DOI: 10.1016/j.freeradbiomed.2019.12.002] [Citation(s) in RCA: 62] [Impact Index Per Article: 15.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 10/21/2019] [Accepted: 12/03/2019] [Indexed: 02/07/2023]
Abstract
Inflammatory bowel disease (IBD) involves chronic inflammation, loss of epithelial integrity, and gastrointestinal microbiota dysbiosis. Effective therapies for IBD have not been established. Accordingly, in this study, we evaluated the effects of inorganic nitrate, a potent nitric oxide (NO) donor and microbiota regulator, in a mouse model of dextran sodium sulfate (DSS)-induced colitis. Mice were pretreated with NaNO3 (2 mM) in their drinking water for 5 days, and NaCl was used as a control. Feces were collected for microbiota analyses. The results showed that oral administration of dietary nitrate could maintained colon consistency, improved colon length, maintained body weight, decreased apoptosis in colon epithelial cells, and ameliorated inflammatory cell infiltration in both the colon and peripheral blood. Microbiota profiling revealed that nitrate regulated dysbiosis. Analysis of the top bacteria at the genus level showed that Bacteroidales_S24-7_group_unidentified, Lactobacillus, Bacteroides, and Prevotellaceae_UCG-001 decreased in the DSS group compared with that in the normal group, whereas Lactobacillus, Ruminococcaceae_UCG-014, and Prevotellaceae_UCG-001 were increased in the DSS + NaNO3 group compared with that in the DSS group. The enriched bacteria in the nitrate group included Gordonibacter, Ureaplasama, and Lachnospiraceae_UCG-006. Moreover, microbiota analysis revealed that nitrate could partially decrease the enriched metabolic pathways (p53 signaling pathway and colorectal cancer pathway) compared with that in the DSS and DSS + NaCl groups. Overall, these findings indicated that nitrate could ameliorate DSS-induced colitis by decreasing inflammation, reducing apoptosis, and regulating the microbiota by activation of the NO3-/NO2-/NO pathway. Nitrate might be a potential treatment for colitis patients in the future clinical application.
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Affiliation(s)
- Liang Hu
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China; Outpatient Department of Oral and Maxillofacial Surgery, School of Stomatology, Capital Medical University, Beijing, China
| | - Luyuan Jin
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China; Department of general dentistry and emergency dental care, School of Stomatology, Capital medical University, Beijing, China
| | - Dengsheng Xia
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China; Department of general dentistry and emergency dental care, School of Stomatology, Capital medical University, Beijing, China
| | - Qian Zhang
- Central Laboratory, Peking University School and Hospital of Stomatology, China
| | - Linsha Ma
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Hui Zheng
- Central Laboratory, Peking University School and Hospital of Stomatology, China; Department of Orthodontics, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Tiansong Xu
- Central Laboratory, Peking University School and Hospital of Stomatology, China
| | - Shimin Chang
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Xiangchun Li
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Zhe Xun
- Central Laboratory, Peking University School and Hospital of Stomatology, China
| | - Yipu Xu
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China; Department of general dentistry and emergency dental care, School of Stomatology, Capital medical University, Beijing, China
| | - Chunmei Zhang
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China
| | - Feng Chen
- Central Laboratory, Peking University School and Hospital of Stomatology, China.
| | - Songlin Wang
- Salivary Gland Disease Center, Beijing Key Laboratory of Tooth Regeneration and Function Reconstruction, Capital Medical University School of Stomatology, Beijing, China; Department of Biochemistry and Molecular Biology, Capital Medical University School of Basic Medicine, Beijing, China.
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15
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Huo JF, Chen XB. Retracted Article: Aclarubicin regulates glioma cell growth and DNA damage through the SIRT1/PI3K/AKT signaling pathway. RSC Adv 2019; 9:28775-28782. [PMID: 35529648 PMCID: PMC9071234 DOI: 10.1039/c9ra05572j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2019] [Accepted: 09/06/2019] [Indexed: 12/16/2022] Open
Abstract
Aclarubicin (ACR), an anthracycline anti-tumor agent, is known to play important roles in cancer. Evidence has suggested that ACR has therapeutic effects on rats intracranially implanted with C6 glioma cells. However, the function and mechanism of ACR in glioma cells remain elusive. In this study, we examined the effects of ACR on glioma cell growth, apoptosis, and DNA damage. Our results showed that treatment with different concentrations of ACR (1, 2, and 5 μM) markedly impeded glioma cell survival, significantly decreased cell proliferation, and increased cell apoptosis and caspase-3 activity. Furthermore, ACR treatment promoted DNA damage through phosphorylation of ATM and CHK1 in U87 and U251 cells. Treatment with ACR also increased sirtuin 1 (SIRT1) expression and inhibited phosphatidylinositol 3′-kinase (PI3K)/AKT pathway activation. Interestingly, we found that AKT overexpression reversed the effects of ACR on glioma cell survival, proliferation, apoptosis, and DNA damage. Thus, our data suggest that ACR induces apoptosis and DNA damage in U87 and U251 cells through the SIRT1/PI3K/AKT signaling pathway. Aclarubicin (ACR), an anthracycline anti-tumor agent, is known to play important roles in cancer.![]()
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Affiliation(s)
- Jun-feng Huo
- Second Ward, Department of Neurosurgery
- Huaihe Hospital of Henan University
- Kaifeng 475000
- China
| | - Xiao-bing Chen
- Second Ward, Department of Neurosurgery
- Huaihe Hospital of Henan University
- Kaifeng 475000
- China
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