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Jung HS, Park YJ, Gu BH, Han G, Ji W, Hwang SM, Kim M. Coumarin derivatives ameliorate the intestinal inflammation and pathogenic gut microbiome changes in the model of infectious colitis through antibacterial activity. Front Cell Infect Microbiol 2024; 14:1362773. [PMID: 39081865 PMCID: PMC11287663 DOI: 10.3389/fcimb.2024.1362773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2023] [Accepted: 06/24/2024] [Indexed: 08/02/2024] Open
Abstract
Coumarin, a phenolic compound, is a secondary metabolite produced by plants such as Tanga and Lime. Coumarin derivatives were prepared via Pechmann condensation. In this study, we performed in vitro and in vivo experiments to determine the antimicrobial and gut immune-regulatory functions of coumarin derivatives. For the in vitro antimicrobial activity assay, coumarin derivatives C1 and C2 were selected based on their pathogen-killing activity against various pathogenic microbes. We further demonstrated that the selected coumarin derivatives disrupted bacterial cell membranes. Next, we examined the regulatory function of the coumarin derivatives in gut inflammation using an infectious colitis model. In an in vivo infectious colitis model, administration of selected C1 coumarin derivatives reduced pathogen loads, the number of inflammatory immune cells (Th1 cells and Th17 cells), and inflammatory cytokine levels (IL-6 and IL-1b) in the intestinal tissue after pathogen infection. In addition, we found that the administration of C1 coumarin derivatives minimized abnormal gut microbiome shift-driven pathogen infection. Potential pathogenic gut microbes, such as Enterobacteriaceae and Staphylococcaceae, were increased by pathogen infection. However, this pathogenic microbial expansion was minimized and beneficial bacteria, such as Ligilactobacillus and Limosilactobacillus, increased with C1 coumarin derivative treatment. Functional gene enrichment assessment revealed that the relative abundance of genes associated with lipid and nucleotide metabolism was reduced by pathogen infection; however, this phenomenon was not observed in C1 coumarin derivative-treated animals. Collectively, our data suggest that C1 coumarin derivative is effective antibacterial agents that minimize pathogen-induced gut inflammation and abnormal gut microbiome modulation through their antibacterial activity.
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Affiliation(s)
- Hui-su Jung
- Laboratory of Animal Immunology, Department of Animal Science, College of Natural Resource & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Yei Ju Park
- R & D Center, EyeGene, Goyang, Republic of Korea
| | - Bon-Hee Gu
- Life and Industry Convergence Research Institute, Pusan National University, Miryang, Republic of Korea
| | - Goeun Han
- Laboratory of Animal Immunology, Department of Animal Science, College of Natural Resource & Life Science, Pusan National University, Miryang, Republic of Korea
- Future Earth Research Institute, PNU JYS Science Academy, Pusan National University, Busan, Republic of Korea
| | - Woonhak Ji
- Laboratory of Animal Immunology, Department of Animal Science, College of Natural Resource & Life Science, Pusan National University, Miryang, Republic of Korea
| | - Su mi Hwang
- Department of Biomedical Laboratory Science, College of Health and Medical Science, Sangji University, Wonju, Republic of Korea
| | - Myunghoo Kim
- Laboratory of Animal Immunology, Department of Animal Science, College of Natural Resource & Life Science, Pusan National University, Miryang, Republic of Korea
- Future Earth Research Institute, PNU JYS Science Academy, Pusan National University, Busan, Republic of Korea
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Manginstar CO, Tallei TE, Niode NJ, Salaki CL, Hessel SS. Therapeutic potential of propolis in alleviating inflammatory response and promoting wound healing in skin burn. Phytother Res 2024; 38:856-879. [PMID: 38084816 DOI: 10.1002/ptr.8092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Revised: 10/22/2023] [Accepted: 11/28/2023] [Indexed: 02/15/2024]
Abstract
Burns can cause inflammation and delayed healing, necessitating alternative therapies due to the limitations of conventional treatments. Propolis, a natural bee-produced substance, has shown promise in facilitating burn healing. This literature review provides a comprehensive overview of propolis' mechanisms of action, wound-healing properties, and its application in treating skin burns. Propolis contains bioactive compounds with antimicrobial, antioxidant, and anti-inflammatory properties, making it a promising candidate for managing skin burn injuries. It helps prevent infections, neutralize harmful free radicals, and promote a well-balanced inflammatory response. Moreover, propolis aids in wound closure, tissue regeneration, collagen synthesis, cellular proliferation, and angiogenesis, contributing to tissue regeneration and remodeling. The article discusses various propolis extracts, extraction methods, chemical composition, and optimized formulations like ointments and creams for burn wound treatment. Considerations regarding dosage and safety are addressed. Further research is needed to fully understand propolis' mechanisms, determine optimal formulations, and establish suitable clinical dosages. Nevertheless, propolis' natural origin and demonstrated benefits make it a compelling avenue for burn care exploration, potentially complementing existing therapies and improving burn management outcomes.
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Grants
- 158/E5/PG.02.00.PL/2023 Directorate of Research, Technology, and Community Engagement at the Ministry of Education, Culture, Research, and Technology, Republic of Indonesia
- 1803/UN12.13/LT/2023 Directorate of Research, Technology, and Community Engagement at the Ministry of Education, Culture, Research, and Technology, Republic of Indonesia
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Affiliation(s)
- Christian Oktavianus Manginstar
- Entomology Study Program, Postgraduate Program, Sam Ratulangi University, Manado, Indonesia
- Division of Surgical Oncology, Department of Surgery, Faculty of Medicine, Sam Ratulangi University, Prof. Dr. R. D. Kandou Central General Hospital, Manado, Indonesia
| | - Trina Ekawati Tallei
- Department of Biology, Faculty of Mathematics and Natural Sciences, Sam Ratulangi University, Manado, Indonesia
- Department of Biology, Faculty of Medicine, Sam Ratulangi University, Manado, Indonesia
| | - Nurdjannah Jane Niode
- Department of Dermatology and Venereology, Faculty of Medicine, Sam Ratulangi University, Prof. Dr. R. D. Kandou Central General Hospital, Manado, Indonesia
| | - Christina Leta Salaki
- Plant Protection Study Program, Faculty of Agriculture, Sam Ratulangi University, Manado, Indonesia
| | - Sofia Safitri Hessel
- Indonesia Biodiversity and Biogeography Research Institute (INABIG), Bandung, Indonesia
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3
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Hashem HR, Amin BH, Yosri M. Investigation of the potential roles of adipose stem cells and substances of natural origin in the healing process of E. coli infected wound model in Rats. Tissue Cell 2023; 85:102214. [PMID: 37690258 DOI: 10.1016/j.tice.2023.102214] [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: 02/20/2023] [Revised: 08/24/2023] [Accepted: 09/01/2023] [Indexed: 09/12/2023]
Abstract
Skin infections by pathogenic microorganisms are a serious problem due to the potential of dissemination through the bloodstream to various organs causing toxic effects that may be up to mortality. Escherichia coli (E. coli) is one of the most predominant Gram-negative bacterial species present globally with great attention for investigation. The current study is designed to investigate the possible role of adipose tissue-derived stem cells (ADSCs), as well as natural products such as Trichoderma viride (T. viride) extract, Saccharomyces boulardii (S. boulardii) solution in the enhancement of wound healing process in the infected skin with E. coli. Ninety-six female rats were divided into 8 groups (12 animal/group): normal skin, wounded skin, wounded skin infected with E. coli, infected-wounded skin treated by ADSCs, infected-wounded skin treated by T. viride extract, infected-wounded skin treated by S. boulardii solution, infected-wounded skin treated a combination of treatments, infected-wounded skin treated by gentamicin. At day 21 animal weights and bacterial count were detected and compared. Animals were sacrificed and skin from various groups was investigated using a light microscope for sections stained by (hematoxylin eosin, Masson trichrome, and PCNA) as well as transmission electron microscopy. Pro-inflammatory (IL-1β, TNF- α, and IL-13), anti-inflammatory cytokine (IL-4), and antioxidant enzymes (Superoxide dismutase, glutathione, and catalase) were assessed in various groups revealing that ADSCs lightly shift levels of these parameters in various rat groups to regular levels, while administration of T. viride extract, S. boulardii solution, their combination with ADSCs and gentamicin treatment drive the tested cytokines and enzymes to significant levels similar to a normal level where combination therapy gave the best result. The current findings revealed the possibility of using certain natural products as possible substitutes to regularly applied antibiotics with successive protective results in the wound infection model.
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Affiliation(s)
- Heba R Hashem
- Anatomy and Embryology Department, Faculty of Medicine, Ain Shams University, Cairo, Egypt
| | - Basma H Amin
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11787, Egypt
| | - Mohammed Yosri
- The Regional Center for Mycology and Biotechnology, Al-Azhar University, Cairo 11787, Egypt.
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4
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Wu S, Chen Y, Chen Z, Wei F, Zhou Q, Li P, Gu Q. Reactive oxygen species and gastric carcinogenesis: The complex interaction between Helicobacter pylori and host. Helicobacter 2023; 28:e13024. [PMID: 37798959 DOI: 10.1111/hel.13024] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Revised: 09/10/2023] [Accepted: 09/21/2023] [Indexed: 10/07/2023]
Abstract
Helicobacter pylori (H. pylori) is a highly successful human pathogen that colonizes stomach in around 50% of the global population. The colonization of bacterium induces an inflammatory response and a substantial rise in the production of reactive oxygen species (ROS) and reactive nitrogen species (RNS), mostly derived from host neutrophils and gastric epithelial cells, which play a crucial role in combating bacterial infections. However, H. pylori has developed various strategies to quench the deleterious effects of ROS, including the production of antioxidant enzymes, antioxidant proteins as well as blocking the generation of oxidants. The host's inability to eliminate H. pylori infection results in persistent ROS production. Notably, excessive ROS can disrupt the intracellular signal transduction and biological processes of the host, incurring chronic inflammation and cellular damage, such as DNA damage, lipid peroxidation, and protein oxidation. Markedly, the sustained inflammatory response and oxidative stress during H. pylori infection are major risk factor for gastric carcinogenesis. In this context, we summarize the literature on H. pylori infection-induced ROS production, the strategies used by H. pylori to counteract the host response, and subsequent host damage and gastric carcinogenesis.
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Affiliation(s)
- Shiying Wu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Yongqiang Chen
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Ziqi Chen
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Fangtong Wei
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Qingqing Zhou
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Ping Li
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
| | - Qing Gu
- Key Laboratory for Food Microbial Technology of Zhejiang Province, College of Food Science and Biotechnology, Zhejiang Gongshang University, Hangzhou, China
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5
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Wang Y, Han W, Wang N, Han M, Ban M, Dai J, Dong Y, Sun T, Xu J. The role of microbiota in the development and treatment of gastric cancer. Front Oncol 2023; 13:1224669. [PMID: 37841431 PMCID: PMC10572359 DOI: 10.3389/fonc.2023.1224669] [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: 05/18/2023] [Accepted: 08/28/2023] [Indexed: 10/17/2023] Open
Abstract
The stomach was once considered a sterile organ until the discovery of Helicobacter pylori (HP). With the application of high-throughput sequencing technology and macrogenomics, researchers have identified fungi and fivemajor bacterial phyla within the stomachs of healthy individuals. These microbial communities exert regulatory influence over various physiological functions, including energy metabolism and immune responses. HP is a well-recognized risk factor for gastric cancer, significantly altering the stomach's native microecology. Currently, numerous studies are centered on the mechanisms by which HP contributes to gastric cancer development, primarily involving the CagA oncoprotein. However, aside from exogenous infections such as HP and EBV, certain endogenous dysbiosis can also lead to gastric cancer through multiple mechanisms. Additionally, gut microbiota and its metabolites significantly impact the development of gastric cancer. The role of microbial therapies, including diet, phages, probiotics and fecal microbiota transplantation, in treating gastric cancer should not be underestimated. This review aims to study the mechanisms involved in the roles of exogenous pathogen infection and endogenous microbiota dysbiosis in the development of gastric cancer. Also, we describe the application of microbiota therapy in the treatment and prognosis of gastric cancer.
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Affiliation(s)
- Yiwen Wang
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Pharmacology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
| | - Wenjie Han
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Pharmacology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
| | - Na Wang
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Pharmacology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
| | - Mengzhen Han
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Pharmacology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
| | - Meng Ban
- Department of Bioinformatics, Kanghui Biotechnology Co., Ltd., Shenyang, China
| | - Jianying Dai
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Yuesheng Dong
- School of Bioengineering, Dalian University of Technology, Dalian, Liaoning, China
| | - Tao Sun
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Oncology Medicine, Key Laboratory of Liaoning Breast Cancer Research, Shenyang, Liaoning, China
| | - Junnan Xu
- Department of Breast Medicine 1, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Pharmacology, Cancer Hospital of China Medical University, Liaoning Cancer Hospital, Shenyang, China
- Department of Oncology Medicine, Key Laboratory of Liaoning Breast Cancer Research, Shenyang, Liaoning, China
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6
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Oh JM, Kim H. The effect of oral bacterial infection on DNA damage response in host cells. Am J Cancer Res 2023; 13:3157-3168. [PMID: 37559975 PMCID: PMC10408462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Accepted: 06/29/2023] [Indexed: 08/11/2023] Open
Abstract
Maintaining and transferring intact genomes from one generation to another plays a pivotal role in all living organisms. DNA damage caused by numerous endogenous and exogenous factors must be adequately repaired, as unrepaired and accumulated DNA mutations can cause severe deleterious effects, such as cell death and cancer. To prevent adverse consequences, cells have established DNA damage response mechanisms that address different forms of DNA damage, including DNA double-strand breaks, mismatches, nucleotide excision, and base excision. Among several sources of exogenous DNA damage, bacterial infections cause inflammation in the host, generating reactive oxygen species (ROS) and causing oxidative DNA damage. Recent studies have revealed the importance of the oral microbiome in inflammation and several systemic host diseases. Dysbiosis of oral bacteria can induce chronic inflammation, which enhances ROS-induced DNA damage, and improperly repaired damage can lead to carcinogenesis. This review describes the various DNA repair pathways that are affected by chronic inflammation and the discovery of the DNA damage response induced by oral bacteria such as Porphyromonas gingivalis and Fusobacterium nucleatum.
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Affiliation(s)
- Jung-Min Oh
- Department of Oral Biochemistry, Dental and Life Science Institute, School of Dentistry, Pusan National UniversityYangsan 50612, Republic of Korea
- Department of Life Science in Dentistry, School of Dentistry, Pusan National UniversityYangsan 50612, Republic of Korea
| | - Hongtae Kim
- Department of Life Sciences, Ulsan National Institute of Science and Technology (UNIST)Ulsan 44919, Republic of Korea
- Center for Genomic Integrity Institute for Basic Science (IBS), UNISTUlsan 44919, Republic of Korea
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7
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Hakura A, Sui H, Seki Y, Sonoda J, Yoshida Y, Takagi H, Yokose S, Matsuda T, Asakura S, Nohmi T. DNA polymerase κ suppresses inflammation and inflammation-induced mutagenesis and carcinogenic potential in the colon of mice. Genes Environ 2023; 45:15. [PMID: 37087526 PMCID: PMC10122296 DOI: 10.1186/s41021-023-00272-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2022] [Accepted: 04/05/2023] [Indexed: 04/24/2023] Open
Abstract
BACKGROUND Chronic inflammation induces DNA damage and promotes cell proliferation, thereby increasing the risk of cancer. DNA polymerase κ (Pol κ), involved in translesion DNA synthesis, counteracts mutagenesis induced by inflammation in the colon of mice. In the present study, we examined whether Pol κ suppressed inflammation-induced colon tumorigenesis by treating inactivated Polk knock-in (Polk-/-) mice with dextran sulfate sodium (DSS), an inducer of colon inflammation. RESULTS Male and female Polk-/- and Polk+/+ mice were administered 2% DSS in drinking water for six consecutive days, succeeded via a recovery period of 16 days, followed by 2% DSS for another two days. DSS treatment strongly induced colitis, and the severity of colitis was higher in Polk-/- mice than in Polk+/+ mice. The mice were sacrificed after 19 weeks from the initiation of the first DSS treatment and subjected to pathological examination and mutation analysis. DSS treatment induced colonic dysplasia, and the multiplicity of dysplasia was higher in Polk-/- mice than in Polk+/+mice. Some of the dysplasias in Polk-/- mice exhibited β-catenin-stained nucleus and/or cytoplasm. Mutation frequencies in the gpt reporter gene were increased by DSS treatment in Polk-/- mice, and were higher than those in Polk+/+ mice. CONCLUSIONS Pol κ suppresses inflammation and inflammation-induced dysplasia as well as inflammation-induced mutagenesis. The possible mechanisms by which Pol κ suppresses colitis- and colitis-induced dysplasia are discussed.
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Affiliation(s)
- Atsushi Hakura
- Global Drug Safety, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba-Shi, Ibaraki, 300-2635, Japan.
| | - Hajime Sui
- Division of Safety Testing, Food and Drug Safety Center, Hatano Research Institute, Hadano, Kanagawa, 257-0025, Japan
| | - Yuki Seki
- Global Drug Safety, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba-Shi, Ibaraki, 300-2635, Japan
| | - Jiro Sonoda
- Global Drug Safety, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba-Shi, Ibaraki, 300-2635, Japan
- Present Address: Operations Department, Global Safety HQS, Eisai Co., Ltd., 4-6-10 Koishikawa, Bunkyo-Ku, Tokyo, 112-8088, Japan
| | - Yusaku Yoshida
- Biotechnical Center, Japan SLC, Inc., 3-5-1 Aoihigashi, Naka-Ku, Hamamatsu-Shi, Shizuoka, 433-8114, Japan
| | - Hisayoshi Takagi
- Biotechnical Center, Japan SLC, Inc., 3-5-1 Aoihigashi, Naka-Ku, Hamamatsu-Shi, Shizuoka, 433-8114, Japan
| | - Shigeo Yokose
- Biotechnical Center, Japan SLC, Inc., 3-5-1 Aoihigashi, Naka-Ku, Hamamatsu-Shi, Shizuoka, 433-8114, Japan
| | - Tomonari Matsuda
- Research Center for Environmental Quality Management, Kyoto University, Otsu, Shiga, 520-0811, Japan
| | - Shoji Asakura
- Global Drug Safety, Eisai Co., Ltd., 5-1-3 Tokodai, Tsukuba-Shi, Ibaraki, 300-2635, Japan
| | - Takehiko Nohmi
- Division of Pathology, National Institute of Health Sciences, 3-25-26 Tonomachi, Kawasaki-Ku, Kawasaki-Shi, Kanagawa, 210-9501, Japan.
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Li Y, Lei Y, Sun J, Zhang W, Li X, Chen S, Kong D, Chen C, Bi K, Luo X, Wang H, Li B, Luo H, Xu Y. A promising research direction for colorectal cancer immunotherapy: The regulatory mechanism of CCL5 in colorectal cancer. Front Oncol 2022; 12:1020400. [PMID: 36387070 PMCID: PMC9664061 DOI: 10.3389/fonc.2022.1020400] [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: 08/16/2022] [Accepted: 10/14/2022] [Indexed: 11/05/2022] Open
Abstract
Colorectal cancer (CRC) is one of the leading causes of cancer death worldwide, with high morbidity and mortality rates worldwide. Therefore, there is an urgent need to develop more effective treatments for CRC patients. In recent years, there has been some success in the immunotherapy of tumors, and immunotherapy has been used in many solid tumors including CRC. To date, the clinical efficacy of immunotherapy for CRC is limited, so more effective immunotherapy methods need to be explored. In patients with CRC, the CC chemokine CCL5 plays a role in the development of CRC and the recruitment and activation of immune cells, suggesting that it has potential for immunotherapy. This review mainly introduces the latest advances in the study of CCL5 acting as a marker of CRC and related mechanisms of immunotherapy, as well as the latest understanding of how CCL5 is involved in the invasion and development of CRC.
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Affiliation(s)
- Yuansen Li
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Yi Lei
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Jiaxue Sun
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Wanfu Zhang
- Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
| | - Xiaogang Li
- Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
| | - Sijing Chen
- Yan’an Hospital of Kunming City, Kunming, Yunnan, China
| | - Deshenyue Kong
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Cheng Chen
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Ke Bi
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Xiao Luo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
| | - Hui Wang
- Yan’an Hospital of Kunming City, Kunming, Yunnan, China
| | - Bo Li
- Affiliated Hospital of Yunnan University, Kunming, Yunnan, China
- *Correspondence: Yu Xu, ; Huayou Luo, ; Bo Li,
| | - Huayou Luo
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
- Yunnan Institute of Digestive Disease, The First Affiliated Hospital of Kunming Medical University, Kunming, Yunnan, China
- *Correspondence: Yu Xu, ; Huayou Luo, ; Bo Li,
| | - Yu Xu
- Department of Gastrointestinal and Hernia Surgery, The First Affiliated Hospital of Kunming Medical University, Kunming, China
- National Health Commission (NHC) Key Laboratory of Drug Addiction Medicine, Kunming Medical University, Kunming, China
- *Correspondence: Yu Xu, ; Huayou Luo, ; Bo Li,
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Ong SS, Ho PJ, Khng AJ, Lim EH, Wong FY, Tan BKT, Lim SH, Tan EY, Tan SM, Tan VKM, Dent R, Tan TJY, Ngeow J, Madhukumar P, Hamzah JLB, Sim Y, Lim GH, Pang JS, Alcantara VS, Chan PMY, Chen JJC, Kuah S, Seah JCM, Buhari SA, Tang SW, Ng CWQ, Li J, Hartman M. Association between Breast Cancer Polygenic Risk Score and Chemotherapy-Induced Febrile Neutropenia: Null Results. Cancers (Basel) 2022; 14:cancers14112714. [PMID: 35681694 PMCID: PMC9179461 DOI: 10.3390/cancers14112714] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 05/17/2022] [Accepted: 05/26/2022] [Indexed: 12/04/2022] Open
Abstract
BACKGROUND The hypothesis that breast cancer (BC) susceptibility variants are linked to chemotherapy-induced toxicity has been previously explored. Here, we investigated the association between a validated 313-marker-based BC polygenic risk score (PRS) and chemotherapy-induced neutropenia without fever and febrile neutropenia (FNc) in Asian BC patients. METHODS This observational case-control study of Asian BC patients treated with chemotherapy included 161 FNc patients, 219 neutropenia patients, and 936 patients who did not develop neutropenia. A continuous PRS was calculated by summing weighted risk alleles associated with overall, estrogen receptor- (ER-) positive, and ER-negative BC risk. PRS distributions neutropenia or FNc cases were compared to controls who did not develop neutropenia using two-sample t-tests. Odds ratios (OR) and corresponding 95% confidence intervals were estimated for the associations between PRS (quartiles and per standard deviation (SD) increase) and neutropenia-related outcomes compared to controls. RESULTS PRS distributions were not significantly different in any of the comparisons. Higher PRSoverall quartiles were negatively correlated with neutropenia or FNc. However, the associations were not statistically significant (PRS per SD increase OR neutropenia: 0.91 [0.79-1.06]; FNc: 0.87 [0.73-1.03]). No dose-dependent trend was observed for the ER-positive weighted PRS (PRSER-pos) and ER-negative weighted PRS (PRSER-neg). CONCLUSION BC PRS was not strongly associated with chemotherapy-induced neutropenia or FNc.
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Affiliation(s)
- Seeu Si Ong
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore 138672, Singapore; (S.S.O.); (P.J.H.); (A.J.K.)
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
| | - Peh Joo Ho
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore 138672, Singapore; (S.S.O.); (P.J.H.); (A.J.K.)
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore 117549, Singapore
| | - Alexis Jiaying Khng
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore 138672, Singapore; (S.S.O.); (P.J.H.); (A.J.K.)
| | - Elaine Hsuen Lim
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (E.H.L.); (R.D.); (T.J.Y.T.); (J.N.)
| | - Fuh Yong Wong
- Division of Radiation Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore;
| | - Benita Kiat-Tee Tan
- Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (B.K.-T.T.); (V.K.M.T.); (P.M.); (J.L.B.H.); (Y.S.)
- Department of Breast Surgery, Singapore General Hospital, Singapore 169608, Singapore
- Department of General Surgery, Sengkang General Hospital, Singapore 544886, Singapore
| | - Swee Ho Lim
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore 229899, Singapore; (S.H.L.); (G.H.L.); (J.S.P.); (V.S.A.)
| | - Ern Yu Tan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (E.Y.T.); (P.M.Y.C.); (J.J.C.C.); (S.K.)
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Institute of Molecular and Cell Biology, Singapore 138673, Singapore
| | - Su-Ming Tan
- Division of Breast Surgery, Changi General Hospital, Singapore 529889, Singapore; (S.-M.T.); (J.C.M.S.)
| | - Veronique Kiak Mien Tan
- Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (B.K.-T.T.); (V.K.M.T.); (P.M.); (J.L.B.H.); (Y.S.)
- Department of Breast Surgery, Singapore General Hospital, Singapore 169608, Singapore
| | - Rebecca Dent
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (E.H.L.); (R.D.); (T.J.Y.T.); (J.N.)
| | - Tira Jing Ying Tan
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (E.H.L.); (R.D.); (T.J.Y.T.); (J.N.)
| | - Joanne Ngeow
- Division of Medical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (E.H.L.); (R.D.); (T.J.Y.T.); (J.N.)
- Lee Kong Chian School of Medicine, Nanyang Technological University, Singapore 308232, Singapore
- Institute of Molecular and Cell Biology, Singapore 138673, Singapore
| | - Preetha Madhukumar
- Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (B.K.-T.T.); (V.K.M.T.); (P.M.); (J.L.B.H.); (Y.S.)
- Department of Breast Surgery, Singapore General Hospital, Singapore 169608, Singapore
| | - Julie Liana Bte Hamzah
- Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (B.K.-T.T.); (V.K.M.T.); (P.M.); (J.L.B.H.); (Y.S.)
- Department of Breast Surgery, Singapore General Hospital, Singapore 169608, Singapore
| | - Yirong Sim
- Division of Surgery and Surgical Oncology, National Cancer Centre Singapore, Singapore 169610, Singapore; (B.K.-T.T.); (V.K.M.T.); (P.M.); (J.L.B.H.); (Y.S.)
- Department of Breast Surgery, Singapore General Hospital, Singapore 169608, Singapore
| | - Geok Hoon Lim
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore 229899, Singapore; (S.H.L.); (G.H.L.); (J.S.P.); (V.S.A.)
| | - Jinnie Siyan Pang
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore 229899, Singapore; (S.H.L.); (G.H.L.); (J.S.P.); (V.S.A.)
| | - Veronica Siton Alcantara
- KK Breast Department, KK Women’s and Children’s Hospital, Singapore 229899, Singapore; (S.H.L.); (G.H.L.); (J.S.P.); (V.S.A.)
| | - Patrick Mun Yew Chan
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (E.Y.T.); (P.M.Y.C.); (J.J.C.C.); (S.K.)
| | - Juliana Jia Chuan Chen
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (E.Y.T.); (P.M.Y.C.); (J.J.C.C.); (S.K.)
| | - Sherwin Kuah
- Department of General Surgery, Tan Tock Seng Hospital, Singapore 308433, Singapore; (E.Y.T.); (P.M.Y.C.); (J.J.C.C.); (S.K.)
| | - Jaime Chin Mui Seah
- Division of Breast Surgery, Changi General Hospital, Singapore 529889, Singapore; (S.-M.T.); (J.C.M.S.)
| | - Shaik Ahmad Buhari
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore 119228, Singapore; (S.A.B.); (S.W.T.); (C.W.Q.N.)
| | - Siau Wei Tang
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore 119228, Singapore; (S.A.B.); (S.W.T.); (C.W.Q.N.)
| | - Celene Wei Qi Ng
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore 119228, Singapore; (S.A.B.); (S.W.T.); (C.W.Q.N.)
| | - Jingmei Li
- Women’s Health and Genetics, Genome Institute of Singapore, 60 Biopolis Street, Genome, #02-01, Singapore 138672, Singapore; (S.S.O.); (P.J.H.); (A.J.K.)
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Correspondence: ; Tel.: +65-6808-8312
| | - Mikael Hartman
- Department of Surgery, Yong Loo Lin School of Medicine, National University of Singapore, Singapore 119228, Singapore;
- Saw Swee Hock School of Public Health, National University of Singapore, Singapore 117549, Singapore
- Department of Surgery, University Surgical Cluster, National University Health System, Singapore 119228, Singapore; (S.A.B.); (S.W.T.); (C.W.Q.N.)
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10
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You L, Zhou J, Xin Z, Hauck JS, Na F, Tang J, Zhou X, Lei Z, Ying B. Novel directions of precision oncology: circulating microbial DNA emerging in cancer-microbiome areas. PRECISION CLINICAL MEDICINE 2022; 5:pbac005. [PMID: 35692444 PMCID: PMC9026200 DOI: 10.1093/pcmedi/pbac005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 02/05/2023] Open
Abstract
Microbiome research has extended into the cancer area in the past decades. Microbes can affect oncogenesis, progression, and treatment response through various mechanisms, including direct regulation and indirect impacts. Microbiota-associated detection methods and agents have been developed to facilitate cancer diagnosis and therapy. Additionally, the cancer microbiome has recently been redefined. The identification of intra-tumoral microbes and cancer-related circulating microbial DNA (cmDNA) has promoted novel research in the cancer-microbiome area. In this review, we define the human system of commensal microbes and the cancer microbiome from a brand-new perspective and emphasize the potential value of cmDNA as a promising biomarker in cancer liquid biopsy. We outline all existing studies on the relationship between cmDNA and cancer and the outlook for potential preclinical and clinical applications of cmDNA in cancer precision medicine, as well as critical problems to be overcome in this burgeoning field.
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Affiliation(s)
- Liting You
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Juan Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhaodan Xin
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - J Spencer Hauck
- Department of Pathology, Duke University School of Medicine, Durham, NC 27710, USA
| | - Feifei Na
- Department of Thoracic Cancer, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Tang
- Department of Clinical Laboratory, Mianyang Central Hospital, School of Medicine, University of Electronic Science and Technology of China, Mianyang 621000,China
| | - Xiaohan Zhou
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zichen Lei
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Binwu Ying
- Department of Laboratory Medicine, West China Hospital, Sichuan University, Chengdu 610041, China
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11
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Guo J, Ikuemonisan J, Hatsukami DK, Hecht SS. Liquid Chromatography-Nanoelectrospray Ionization-High-Resolution Tandem Mass Spectrometry Analysis of Apurinic/Apyrimidinic Sites in Oral Cell DNA of Cigarette Smokers, e-Cigarette Users, and Nonsmokers. Chem Res Toxicol 2021; 34:2540-2548. [PMID: 34846846 DOI: 10.1021/acs.chemrestox.1c00308] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cigarette smoking is an established risk factor for oral cancer. The health effects of e-cigarettes are still under investigation but may disturb oral cavity homeostasis and cause lung and cardiovascular diseases. Carcinogens and toxicants in tobacco products and e-cigarettes may damage DNA, resulting in the formation of apurinic/apyrimidinic (AP) sites and initiation of the carcinogenic process. In this study, we optimized a liquid chromatography-nanoelectrospray ionization-high-resolution tandem mass spectrometry method to analyze AP sites in buccal cell DNA of 35 nonsmokers, 30 smokers, and 30 e-cigarette users. AP sites in e-cigarette users (median 3.3 per 107 nts) were significantly lower than in smokers (median 5.7 per 107 nts) and nonsmokers (median 6.0 per 107 nts). AP sites in smokers were not significantly different from nonsmokers (p > 0.05). The e-cigarette vaporizing solvents propylene glycol and glycerin were tested and did not protect against AP site formation in in vitro control and carcinogen exposed rat liver homogenates. However, propylene glycol may inhibit bacteria in oral cells, resulting in reduced inflammation and related effects, and reduced AP site levels in e-cigarette user DNA. This is the first study to examine AP site formation in e-cigarette users and to evaluate AP sites in human oral cell DNA.
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Affiliation(s)
- Jiehong Guo
- Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-210 CCRB, Minneapolis, Minnesota 55455, United States
| | - Joshua Ikuemonisan
- Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-210 CCRB, Minneapolis, Minnesota 55455, United States
| | - Dorothy K Hatsukami
- Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-210 CCRB, Minneapolis, Minnesota 55455, United States
| | - Stephen S Hecht
- Masonic Cancer Center, University of Minnesota, 2231 6th Street SE, 2-210 CCRB, Minneapolis, Minnesota 55455, United States
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12
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Chakraborty A, Tapryal N, Islam A, Mitra S, Hazra T. Transcription coupled base excision repair in mammalian cells: So little is known and so much to uncover. DNA Repair (Amst) 2021; 107:103204. [PMID: 34390916 DOI: 10.1016/j.dnarep.2021.103204] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 07/06/2021] [Accepted: 08/03/2021] [Indexed: 12/31/2022]
Abstract
Oxidized bases in the genome has been implicated in various human pathologies, including cancer, aging and neurological diseases. Their repair is initiated with excision by DNA glycosylases (DGs) in the base excision repair (BER) pathway. Among the five oxidized base-specific human DGs, OGG1 and NTH1 preferentially excise oxidized purines and pyrimidines, respectively, while NEILs remove both oxidized purines and pyrimidines. However, little is known about why cells possess multiple DGs with overlapping substrate specificities. Studies of the past decades revealed that some DGs are involved in repair of oxidized DNA base lesions in the actively transcribed regions. Preferential removal of lesions from the transcribed strands of active genes, called transcription-coupled repair (TCR), was discovered as a distinct sub-pathway of nucleotide excision repair; however, such repair of oxidized DNA bases had not been established until our recent demonstration of NEIL2's role in TC-BER of the nuclear genome. We have shown that NEIL2 forms a distinct transcriptionally active, repair proficient complex. More importantly, we for the first time reconstituted TC-BER using purified components. These studies are important for characterizing critical requirement for the process. However, because NEIL2 cannot remove all types of oxidized bases, it is unlikely to be the only DNA glycosylase involved in TC-BER. Hence, we postulate TC-BER process to be universally involved in maintaining the functional integrity of active genes, especially in post-mitotic, non-growing cells. We further postulate that abnormal bases (e.g., uracil), and alkylated and other small DNA base adducts are also repaired via TC-BER. In this review, we have provided an overview of the various aspects of TC-BER in mammalian cells with the hope of generating significant interest of many researchers in the field. Further studies aimed at better understanding the mechanistic aspects of TC-BER could help elucidate the linkage of TC-BER deficiency to various human pathologies.
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Affiliation(s)
- Anirban Chakraborty
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Sealy Center for Molecular Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA.
| | - Nisha Tapryal
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Sealy Center for Molecular Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Azharul Islam
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Sealy Center for Molecular Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA
| | - Sankar Mitra
- Department of Radiation Oncology, The Houston Methodist Research Institute, Houston, TX 77030, USA
| | - Tapas Hazra
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Sealy Center for Molecular Medicine, University of Texas Medical Branch, Galveston, TX 77555, USA.
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13
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Mowat C, Mosley SR, Namdar A, Schiller D, Baker K. Anti-tumor immunity in mismatch repair-deficient colorectal cancers requires type I IFN-driven CCL5 and CXCL10. J Exp Med 2021; 218:e20210108. [PMID: 34297038 PMCID: PMC8313406 DOI: 10.1084/jem.20210108] [Citation(s) in RCA: 55] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 05/19/2021] [Accepted: 06/29/2021] [Indexed: 12/16/2022] Open
Abstract
Colorectal cancers (CRCs) deficient in DNA mismatch repair (dMMR) contain abundant CD8+ tumor-infiltrating lymphocytes (TILs) responding to the abundant neoantigens from their unstable genomes. Priming of such tumor-targeted TILs first requires recruitment of CD8+ T cells into the tumors, implying that this is an essential prerequisite of successful dMMR anti-tumor immunity. We have discovered that selective recruitment and activation of systemic CD8+ T cells into dMMR CRCs strictly depend on overexpression of CCL5 and CXCL10 due to endogenous activation of cGAS/STING and type I IFN signaling by damaged DNA. TIL infiltration into orthotopic dMMR CRCs is neoantigen-independent and followed by induction of a resident memory-like phenotype key to the anti-tumor response. CCL5 and CXCL10 could be up-regulated by common chemotherapies in all CRCs, indicating that facilitating CD8+ T cell recruitment underlies their efficacy. Induction of CCL5 and CXCL10 thus represents a tractable therapeutic strategy to induce TIL recruitment into CRCs, where local priming can be maximized even in neoantigen-poor CRCs.
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Affiliation(s)
- Courtney Mowat
- Department of Oncology, University of Alberta, Edmonton, Canada
| | | | - Afshin Namdar
- Department of Oncology, University of Alberta, Edmonton, Canada
| | - Daniel Schiller
- Department of Surgery, Royal Alexandra Hospital, Edmonton, Canada
| | - Kristi Baker
- Department of Oncology, University of Alberta, Edmonton, Canada
- Department of Medical Microbiology and Immunology, University of Alberta, Edmonton, Canada
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14
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Molinaro C, Martoriati A, Cailliau K. Proteins from the DNA Damage Response: Regulation, Dysfunction, and Anticancer Strategies. Cancers (Basel) 2021; 13:3819. [PMID: 34359720 PMCID: PMC8345162 DOI: 10.3390/cancers13153819] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2021] [Revised: 07/22/2021] [Accepted: 07/26/2021] [Indexed: 12/21/2022] Open
Abstract
Cells respond to genotoxic stress through a series of complex protein pathways called DNA damage response (DDR). These monitoring mechanisms ensure the maintenance and the transfer of a correct genome to daughter cells through a selection of DNA repair, cell cycle regulation, and programmed cell death processes. Canonical or non-canonical DDRs are highly organized and controlled to play crucial roles in genome stability and diversity. When altered or mutated, the proteins in these complex networks lead to many diseases that share common features, and to tumor formation. In recent years, technological advances have made it possible to benefit from the principles and mechanisms of DDR to target and eliminate cancer cells. These new types of treatments are adapted to the different types of tumor sensitivity and could benefit from a combination of therapies to ensure maximal efficiency.
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Affiliation(s)
| | | | - Katia Cailliau
- Univ. Lille, CNRS, UMR 8576-UGSF-Unité de Glycobiologie Structurale et Fonctionnelle, F-59000 Lille, France; (C.M.); (A.M.)
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15
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Significance of base excision repair to human health. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2021; 364:163-193. [PMID: 34507783 DOI: 10.1016/bs.ircmb.2021.05.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Oxidative and alkylating DNA damage occurs under normal physiological conditions and exogenous exposure to DNA damaging agents. To counteract DNA base damage, cells have evolved several defense mechanisms that act at different levels to prevent or repair DNA base damage. Cells combat genomic lesions like these including base modifications, abasic sites, as well as single-strand breaks, via the base excision repair (BER) pathway. In general, the core BER process involves well-coordinated five-step reactions to correct DNA base damage. In this review, we will uncover the current understanding of BER mechanisms to maintain genomic stability and the biological consequences of its failure due to repair gene mutations. The malfunction of BER can often lead to BER intermediate accumulation, which is genotoxic and can lead to different types of human disease. Finally, we will address the use of BER intermediates for targeted cancer therapy.
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16
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Lee HH, Park J, Jung H, Seo YS. Pan-Genome Analysis Reveals Host-Specific Functional Divergences in Burkholderia gladioli. Microorganisms 2021; 9:1123. [PMID: 34067383 PMCID: PMC8224644 DOI: 10.3390/microorganisms9061123] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2021] [Revised: 05/17/2021] [Accepted: 05/20/2021] [Indexed: 11/16/2022] Open
Abstract
Burkholderia gladioli has high versatility and adaptability to various ecological niches. Here, we constructed a pan-genome using 14 genome sequences of B. gladioli, which originate from different niches, including gladiolus, rice, humans, and nature. Functional roles of core and niche-associated genomes were investigated by pathway enrichment analyses. Consequently, we inferred the uniquely important role of niche-associated genomes in (1) selenium availability during competition with gladiolus host; (2) aromatic compound degradation in seed-borne and crude oil-accumulated environments, and (3) stress-induced DNA repair system/recombination in the cystic fibrosis-niche. We also identified the conservation of the rhizomide biosynthetic gene cluster in all the B. gladioli strains and the concentrated distribution of this cluster in human isolates. It was confirmed the absence of complete CRISPR/Cas system in both plant and human pathogenic B. gladioli and the presence of the system in B. gladioli living in nature, possibly reflecting the inverse relationship between CRISPR/Cas system and virulence.
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Affiliation(s)
- Hyun-Hee Lee
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea; (H.-H.L.); (J.P.); (H.J.)
| | - Jungwook Park
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea; (H.-H.L.); (J.P.); (H.J.)
- Environmental Microbiology Research Team, Nakdonggang National Institute of Biological Resources (NNIBR), Sangju 37242, Korea
| | - Hyejung Jung
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea; (H.-H.L.); (J.P.); (H.J.)
| | - Young-Su Seo
- Department of Integrated Biological Science, Pusan National University, Busan 46241, Korea; (H.-H.L.); (J.P.); (H.J.)
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17
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Parvimonas micra, Peptostreptococcus stomatis, Fusobacterium nucleatum and Akkermansia muciniphila as a four-bacteria biomarker panel of colorectal cancer. Sci Rep 2021; 11:2925. [PMID: 33536501 PMCID: PMC7859180 DOI: 10.1038/s41598-021-82465-0] [Citation(s) in RCA: 82] [Impact Index Per Article: 27.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 01/14/2021] [Indexed: 02/08/2023] Open
Abstract
Dysbiosis of the gut microbiome has been associated with the pathogenesis of colorectal cancer (CRC). We profiled the microbiome of gut mucosal tissues from 18 CRC patients and 18 non-CRC controls of the UKM Medical Centre (UKMMC), Kuala Lumpur, Malaysia. The results were then validated using a species-specific quantitative PCR in 40 CRC and 20 non-CRC tissues samples from the UMBI-UKMMC Biobank. Parvimonas micra, Fusobacterium nucleatum, Peptostreptococcus stomatis and Akkermansia muciniphila were found to be over-represented in our CRC patients compared to non-CRC controls. These four bacteria markers distinguished CRC from controls (AUROC = 0.925) in our validation cohort. We identified bacteria species significantly associated (cut-off value of > 5 fold abundance) with various CRC demographics such as ethnicity, gender and CRC staging; however, due to small sample size of the discovery cohort, these results could not be further verified in our validation cohort. In summary, Parvimonas micra, Fusobacterium nucleatum, Peptostreptococcus stomatis and Akkermansia muciniphila were enriched in our local CRC patients. Nevertheless, the roles of these bacteria in CRC initiation and progression remains to be investigated.
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18
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Ricci AD, Rizzo A, Brandi G. DNA damage response alterations in gastric cancer: knocking down a new wall. Future Oncol 2021; 17:865-868. [PMID: 33508962 DOI: 10.2217/fon-2020-0989] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Affiliation(s)
- Angela Dalia Ricci
- Department of Experimental, Diagnostic & Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, 40138, Italy
| | - Alessandro Rizzo
- Department of Experimental, Diagnostic & Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, 40138, Italy
| | - Giovanni Brandi
- Department of Experimental, Diagnostic & Specialty Medicine, S. Orsola-Malpighi University Hospital, Bologna, 40138, Italy
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19
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Toprani SM, Scheibler C, Nagel ZD. Interplay Between Air Travel, Genome Integrity, and COVID-19 Risk vis-a-vis Flight Crew. Front Public Health 2020; 8:590412. [PMID: 33392133 PMCID: PMC7775589 DOI: 10.3389/fpubh.2020.590412] [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: 08/01/2020] [Accepted: 11/16/2020] [Indexed: 01/04/2023] Open
Abstract
During air travel, flight crew (flight attendants, pilots) can be exposed to numerous flight-related environmental DNA damaging agents that may be at the root of an excess risk of cancer and other diseases. This already complex mix of exposures is now joined by SARS-CoV-2, the virus that causes COVID-19. The complex exposures experienced during air travel present a challenge to public health research, but also provide an opportunity to consider new strategies for understanding and countering their health effects. In this article, we focus on threats to genomic integrity that occur during air travel and discuss how these threats and our ability to respond to them may influence the risk of SARS-CoV-2 infection and the development of range of severity of the symptoms. We also discuss how the virus itself may lead to compromised genome integrity. We argue that dauntingly complex public health problems, such as the challenge of protecting flight crews from COVID-19, must be met with interdisciplinary research teams that include epidemiologists, engineers, and mechanistic biologists.
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Affiliation(s)
- Sneh M. Toprani
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Christopher Scheibler
- Environmental and Occupational Medicine and Epidemiology Program, Harvard T.H. Chan School of Public Health, Boston, MA, United States
| | - Zachary D. Nagel
- Department of Environmental Health, Harvard T.H. Chan School of Public Health, Boston, MA, United States
- John B. Little Center for Radiation Sciences, Harvard T.H. Chan School of Public Health, Boston, MA, United States
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20
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Suman S, Jaruga P, Dizdaroglu M, Fornace AJ, Datta K. Heavy ion space radiation triggers ongoing DNA base damage by downregulating DNA repair pathways. LIFE SCIENCES IN SPACE RESEARCH 2020; 27:27-32. [PMID: 34756227 DOI: 10.1016/j.lssr.2020.07.001] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 07/03/2020] [Accepted: 07/05/2020] [Indexed: 06/13/2023]
Abstract
Long-duration space missions outside low earth orbit will expose astronauts to a cumulative dose of high-energy particle radiation especially to highly damaging heavy ion radiation, which poses considerable risk to astronauts' health. The purpose of the current study was to quantitatively identify oxidatively induced DNA base modifications and assess status of the repair pathways involved in removing the modified bases in mouse intestinal cells after exposure to γ-rays and iron radiation. Mice (C57BL/6J; 6 to 8 weeks; female) were exposed to 0.5 Gy of either γ-rays or iron radiation and control mice were sham-irradiated. Intestinal tissues were collected 2 months after radiation. DNA base lesions were measured using gas chromatography-tandem mass spectrometry with isotope‑dilution. Base excision repair (BER) and nucleotide excision repair (NER) pathways were assessed using PCR and immunoblotting. Effects of iron radiation were compared to γ-rays and sham-irradiated controls. Exposure to iron radiation resulted in significantly higher levels of several DNA base lesions relative to control animals and those exposed to γ radiation. Assessment of BER and NER showed downregulation of pathway factors both at the RNA as well as at the protein levels. Our results not only provide important insight into DNA damage pattern in intestinal cells in response to iron radiation, but they also confirm our previous immunohistochemistry data on oxidatively induced DNA damage. We suggest that downregulation of the BER and NER pathways is contributing to ongoing DNA base damages long time after radiation exposure and has implications for chronic diseases including gastrointestinal diseases after heavy ion radiation exposure during space travel.
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Affiliation(s)
- Shubhankar Suman
- Department of Biochemistry and Molecular & Cellular Biology, Lombardi Comprehensive Cancer Center, Georgetown University, Research Building, Room E518, 3970 Reservoir Rd., NW, Washington, DC 20057, USA
| | - Pawel Jaruga
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Miral Dizdaroglu
- Biomolecular Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
| | - Albert J Fornace
- Department of Biochemistry and Molecular & Cellular Biology, Lombardi Comprehensive Cancer Center, Georgetown University, Research Building, Room E518, 3970 Reservoir Rd., NW, Washington, DC 20057, USA
| | - Kamal Datta
- Department of Biochemistry and Molecular & Cellular Biology, Lombardi Comprehensive Cancer Center, Georgetown University, Research Building, Room E518, 3970 Reservoir Rd., NW, Washington, DC 20057, USA.
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21
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Jain S, Samal AG, Das B, Pradhan B, Sahu N, Mohapatra D, Behera PK, Satpathi PS, Mohanty AK, Satpathi S, Senapati S. Escherichia coli, a common constituent of benign prostate hyperplasia-associated microbiota induces inflammation and DNA damage in prostate epithelial cells. Prostate 2020; 80:1341-1352. [PMID: 32835423 DOI: 10.1002/pros.24063] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/07/2020] [Revised: 07/25/2020] [Accepted: 08/10/2020] [Indexed: 12/26/2022]
Abstract
BACKGROUND The role of microbiota in the pathophysiology of benign prostate hyperplasia (BPH), especially in creating an inflammatory milieu may not be avoided. The major objectives of this study were to investigate the microbial composition of BPH tissues, its association with inflammation and check the effect of clinically isolated bacteria on prostate epithelial cells. METHODS The study includes 36 patients with a pathological diagnosis of BPH. Following strict aseptic measures, tissues were collected after transurethral resection of prostate, multiple pieces of the resected tissues were subjected to histopathological analysis, bacterial culture and genomic DNA extraction. Microbial composition was analyzed by culture and/or next-generation sequencing methods. Annotation of operational taxonomy unit has been done with an in-house algorithm. The extent of inflammation was scored through histological evaluation of tissue sections. The effect of clinical isolates on nuclear factor-κB (NF-κB) activity and induction of DNA-damage in the prostate epithelial cells were evaluated. RESULTS Histopathological analysis of the BPH tissues showed the presence of inflammation in almost all the tissues with a varied level at different regions of the same tissue section and the level of overall inflammation was different from patients to patients. Microbial culture of tissue samples showed the presence of live bacteria in 55.5% (20 out of 36) of the patient tissues. Majority of the isolates were coagulase-positive Staphylococcus, E. coli and Micrococcus spp. Further, V3 16S rRNA sequencing of the DNA isolated from BPH tissues showed the presence of multiple bacteria and the most common phylum in the BPH tissues were found to be Proteobacteria, Actinobacteria, Firmicutes, and Bacteroidetes. The E. coli, isolated from one of the tissue was able to activate NF-κB and induce DNA damage in prostate epithelial cells. Phospho-histone γH2A.X staining confirmed the presence of cells with damaged DNA lesion in BPH tissues and also correlated with the severity of inflammation. CONCLUSION Our study has shown that the BPH tissues do have a divergent microbial composition including the commonly found E. coli (phylum Proteobacteria), and these bacteria might contribute to the BPH-associated inflammation and/or tissue damage. The BPH-associated E. coli induced NF-κB signaling and DNA damage in prostate epithelial cells in vitro.
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Affiliation(s)
- Sumeet Jain
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Ajit Gopal Samal
- Department of Surgery, Hitech Medical College, Rourkela, Odisha, India
| | - Biswajit Das
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- Manipal Academy of Higher Education, Manipal, Karnataka, India
| | - Biswaranjan Pradhan
- School of Basic Sciences, S. K. Dash Center of Excellence of Biosciences and Engineering & Technology (SKBET), Indian Institute of Technology, Bhubaneswar, Odisha, India
| | - Nilanjan Sahu
- School of Biological Sciences, National Institute of Science Education and Research, Bhubaneswar, Odisha, India
| | - Debasish Mohapatra
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
- School of Biotechnology, KIIT University, Bhubaneswar, Odisha, India
| | | | | | - Akshaya K Mohanty
- Infectious Disease Biology Unit, Institute of Life Sciences, Bhubaneswar, Odisha, India
| | - Sanghamitra Satpathi
- Department of Pathology, Ispat General Hospital, Rourkela, Odisha, India
- Department of Pathology, Hitech Medical College and Hospital, Rourkela, Odisha, India
| | - Shantibhusan Senapati
- Division of Cancer Biology, Tumor Microenvironment and Animal Models Lab, Institute of Life Sciences, Bhubaneswar, Odisha, India
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22
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Maekawa M, Higashiyama S. The Roles of SPOP in DNA Damage Response and DNA Replication. Int J Mol Sci 2020; 21:ijms21197293. [PMID: 33023230 PMCID: PMC7582541 DOI: 10.3390/ijms21197293] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2020] [Revised: 09/30/2020] [Accepted: 09/30/2020] [Indexed: 12/20/2022] Open
Abstract
Speckle-type BTB/POZ protein (SPOP) is a substrate recognition receptor of the cullin-3 (CUL3)/RING type ubiquitin E3 complex. To date, approximately 30 proteins have been identified as ubiquitinated substrates of the CUL3/SPOP complex. Pathologically, missense mutations in the substrate-binding domain of SPOP have been found in prostate and endometrial cancers. Prostate and endometrial cancer-associated SPOP mutations lose and increase substrate-binding ability, respectively. Expression of these SPOP mutants, thus, causes aberrant turnovers of the substrate proteins, leading to tumor formation. Although the molecular properties of SPOP and its cancer-associated mutants have been intensively elucidated, their cellular functions remain unclear. Recently, a number of studies have uncovered the critical role of SPOP and its mutants in DNA damage response and DNA replication. In this review article, we summarize the physiological functions of SPOP as a “gatekeeper” of genome stability.
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Affiliation(s)
- Masashi Maekawa
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon 791-0295, Japan;
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
- Correspondence: ; Tel.: +81-89-960-5254
| | - Shigeki Higashiyama
- Division of Cell Growth and Tumor Regulation, Proteo-Science Center, Ehime University, Toon 791-0295, Japan;
- Department of Biochemistry and Molecular Genetics, Ehime University Graduate School of Medicine, Toon 791-0295, Japan
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23
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Sayed IM, Chakraborty A, Abd El-Hafeez AA, Sharma A, Sahan AZ, Huang WJM, Sahoo D, Ghosh P, Hazra TK, Das S. The DNA Glycosylase NEIL2 Suppresses Fusobacterium-Infection-Induced Inflammation and DNA Damage in Colonic Epithelial Cells. Cells 2020; 9:E1980. [PMID: 32872214 PMCID: PMC7565382 DOI: 10.3390/cells9091980] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 08/23/2020] [Accepted: 08/25/2020] [Indexed: 12/13/2022] Open
Abstract
Colorectal cancer (CRC) is the third most prevalent cancer, while the majority (80-85%) of CRCs are sporadic and are microsatellite stable (MSS), and approximately 15-20% of them display microsatellite instability (MSI). Infection and chronic inflammation are known to induce DNA damage in host tissues and can lead to oncogenic transformation of cells, but the role of DNA repair proteins in microbe-associated CRCs remains unknown. Using CRC-associated microbes such as Fusobacterium nucleatum (Fn) in a coculture with murine and human enteroid-derived monolayers (EDMs), here, we show that, among all the key DNA repair proteins, NEIL2, an oxidized base-specific DNA glycosylase, is significantly downregulated after Fn infection. Fn infection of NEIL2-null mouse-derived EDMs showed a significantly higher level of DNA damage, including double-strand breaks and inflammatory cytokines. Several CRC-associated microbes, but not the commensal bacteria, induced the accumulation of DNA damage in EDMs derived from a murine CRC model, and Fn had the most pronounced effect. An analysis of publicly available transcriptomic datasets showed that the downregulation of NEIL2 is often encountered in MSS compared to MSI CRCs. We conclude that the CRC-associated microbe Fn induced the downregulation of NEIL2 and consequent accumulation of DNA damage and played critical roles in the progression of CRCs.
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Affiliation(s)
- Ibrahim M. Sayed
- Department of Pathology, University of California, San Diego, CA 92093, USA; (I.M.S.); (A.S.); (A.Z.S.)
- Department of Medical Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut 71515, Egypt
| | - Anirban Chakraborty
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX-77555, USA; (A.C.); (T.K.H.)
| | - Amer Ali Abd El-Hafeez
- Department of Cellular and Molecular Medicine, University of California, San Diego, CA 92093, USA.; (A.A.A.E.-H.); (W.J.M.H.); (P.G.)
| | - Aditi Sharma
- Department of Pathology, University of California, San Diego, CA 92093, USA; (I.M.S.); (A.S.); (A.Z.S.)
| | - Ayse Z. Sahan
- Department of Pathology, University of California, San Diego, CA 92093, USA; (I.M.S.); (A.S.); (A.Z.S.)
| | - Wendy Jia Men Huang
- Department of Cellular and Molecular Medicine, University of California, San Diego, CA 92093, USA.; (A.A.A.E.-H.); (W.J.M.H.); (P.G.)
| | - Debashis Sahoo
- Department of Pediatrics, University of California, San Diego, CA 92093, USA;
- Department of Computer Science and Engineering, Jacob’s School of Engineering, La Jolla, CA 92093, USA
| | - Pradipta Ghosh
- Department of Cellular and Molecular Medicine, University of California, San Diego, CA 92093, USA.; (A.A.A.E.-H.); (W.J.M.H.); (P.G.)
- Department of Medicine, University of California, San Diego, CA 92093, USA
- Moores Cancer Center, University of California, San Diego, CA 92093, USA
| | - Tapas K. Hazra
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, TX-77555, USA; (A.C.); (T.K.H.)
| | - Soumita Das
- Department of Pathology, University of California, San Diego, CA 92093, USA; (I.M.S.); (A.S.); (A.Z.S.)
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24
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Sayed IM, Sahan AZ, Venkova T, Chakraborty A, Mukhopadhyay D, Bimczok D, Beswick EJ, Reyes VE, Pinchuk I, Sahoo D, Ghosh P, Hazra TK, Das S. Helicobacter pylori infection downregulates the DNA glycosylase NEIL2, resulting in increased genome damage and inflammation in gastric epithelial cells. J Biol Chem 2020; 295:11082-11098. [PMID: 32518160 DOI: 10.1074/jbc.ra119.009981] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2019] [Revised: 05/30/2020] [Indexed: 01/08/2023] Open
Abstract
Infection with the Gram-negative, microaerophilic bacterium Helicobacter pylori induces an inflammatory response and oxidative DNA damage in gastric epithelial cells that can lead to gastric cancer (GC). However, the underlying pathogenic mechanism is largely unclear. Here, we report that the suppression of Nei-like DNA glycosylase 2 (NEIL2), a mammalian DNA glycosylase that specifically removes oxidized bases, is one mechanism through which H. pylori infection may fuel the accumulation of DNA damage leading to GC. Using cultured cell lines, gastric biopsy specimens, primary cells, and human enteroid-derived monolayers from healthy human stomach, we show that H. pylori infection greatly reduces NEIL2 expression. The H. pylori infection-induced downregulation of NEIL2 was specific, as Campylobacter jejuni had no such effect. Using gastric organoids isolated from the murine stomach in coculture experiments with live bacteria mimicking the infected stomach lining, we found that H. pylori infection is associated with the production of various inflammatory cytokines. This response was more pronounced in Neil2 knockout (KO) mouse cells than in WT cells, suggesting that NEIL2 suppresses inflammation under physiological conditions. Notably, the H. pylori-infected Neil2-KO murine stomach exhibited more DNA damage than the WT. Furthermore, H. pylori-infected Neil2-KO mice had greater inflammation and more epithelial cell damage. Computational analysis of gene expression profiles of DNA glycosylases in gastric specimens linked the reduced Neil2 level to GC progression. Our results suggest that NEIL2 downregulation is a plausible mechanism by which H. pylori infection impairs DNA damage repair, amplifies the inflammatory response, and initiates GC.
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Affiliation(s)
- Ibrahim M Sayed
- Department of Pathology, University of California San Diego, San Diego, California, USA
| | - Ayse Z Sahan
- Department of Pathology, University of California San Diego, San Diego, California, USA
| | - Tatiana Venkova
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Anirban Chakraborty
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | | | - Diane Bimczok
- Department of Microbiology and Immunology, Montana State University, Bozeman, Montana, USA
| | - Ellen J Beswick
- Department of Medicine, University of Utah, Salt Lake City, Utah, USA
| | - Victor E Reyes
- Department of Pediatrics, University of Texas Medical Branch, Galveston, Texas, USA
| | - Irina Pinchuk
- College of Medicine, Penn State Health Milton S. Hershey Medical Center, Hershey, Pennsylvania, USA
| | - Debashis Sahoo
- Department of Pediatrics, University of California San Diego, San Diego, California, USA.,Department of Computer Science and Engineering, Jacob's School of Engineering, San Diego, California, USA
| | - Pradipta Ghosh
- Department of Medicine and Cellular and Molecular Medicine, John and Rebecca Moore Cancer Center, University of California San Diego, San Diego, California, USA
| | - Tapas K Hazra
- Department of Internal Medicine, University of Texas Medical Branch, Galveston, Texas, USA
| | - Soumita Das
- Department of Pathology, University of California San Diego, San Diego, California, USA
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25
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He Y, Wang Y, Qin C, Xu Y, Cheng K, Xu H, Tian B, Zhao Y, Wang L, Hua Y. Structural and Functional Characterization of a Unique AP Endonuclease From Deinococcus radiodurans. Front Microbiol 2020; 11:1178. [PMID: 33117296 PMCID: PMC7548837 DOI: 10.3389/fmicb.2020.01178] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Accepted: 05/08/2020] [Indexed: 11/13/2022] Open
Abstract
Various endogenous and exogenous agents cause DNA damage, including apurinic/apyrimidinic (AP) sites. Due to their cytotoxic effects, AP sites are usually cleaved by AP endonuclease through the base excision repair (BER) pathway. Deinococcus radiodurans, an extraordinary radiation-resistant bacterium, is known as an ideal model organism for elucidating DNA repair processes. Here, we have investigated a unique AP endonuclease (DrXth) from D. radiodurans and found that it possesses AP endonuclease, 3'-phosphodiesterase, 3'-phosphatase, and 3'-5' exonuclease but has no nucleotide incision repair (NIR) activity. We also found that Mg2+ and Mn2+ were the preferred divalent metals for endonuclease and exonuclease activities, respectively. In addition, DrXth were crystallized and the crystals diffracted to 1.5 Å. Structural and biochemical analyses demonstrated that residue Gly198 is the key residue involved in the substrate DNA binding and cleavage. Deletion of the drxth gene in D. radiodurans caused elevated sensitivity to DNA damage agents and increased spontaneous mutation frequency. Overall, our results indicate that DrXth is an important AP endonuclease involved in BER pathway and functions in conjunction with other DNA repair enzymes to maintain the genome stability.
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Affiliation(s)
- Yuan He
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Yiyi Wang
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Chen Qin
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Ying Xu
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Kaiying Cheng
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Hong Xu
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Bing Tian
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Ye Zhao
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Liangyan Wang
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
| | - Yuejin Hua
- MOE Key Laboratory of Biosystems Homeostasis and Protection, College of Life Sciences, Institute of Biophysics, Zhejiang University, Hangzhou, China
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26
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Dharmalingam P, Talakatta G, Mitra J, Wang H, Derry PJ, Nilewski LG, McHugh EA, Fabian RH, Mendoza K, Vasquez V, Hegde PM, Kakadiaris E, Roy T, Boldogh I, Hegde VL, Mitra S, Tour JM, Kent TA, Hegde ML. Pervasive Genomic Damage in Experimental Intracerebral Hemorrhage: Therapeutic Potential of a Mechanistic-Based Carbon Nanoparticle. ACS NANO 2020; 14:2827-2846. [PMID: 32049495 PMCID: PMC7850811 DOI: 10.1021/acsnano.9b05821] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
Therapy for intracerebral hemorrhage (ICH) remains elusive, in part dependent on the severity of the hemorrhage itself as well as multiple deleterious effects of blood and its breakdown products such as hemin and free iron. While oxidative injury and genomic damage have been seen following ICH, the details of this injury and implications remain unclear. Here, we discovered that, while free iron produced mostly reactive oxygen species (ROS)-related single-strand DNA breaks, hemin unexpectedly induced rapid and persistent nuclear and mitochondrial double-strand breaks (DSBs) in neuronal and endothelial cell genomes and in mouse brains following experimental ICH comparable to that seen with γ radiation and DNA-complexing chemotherapies. Potentially as a result of persistent DSBs and the DNA damage response, hemin also resulted in senescence phenotype in cultured neurons and endothelial cells. Subsequent resistance to ferroptosis reported in other senescent cell types was also observed here in neurons. While antioxidant therapy prevented senescence, cells became sensitized to ferroptosis. To address both senescence and resistance to ferroptosis, we synthesized a modified, catalytic, and rapidly internalized carbon nanomaterial, poly(ethylene glycol)-conjugated hydrophilic carbon clusters (PEG-HCC) by covalently bonding the iron chelator, deferoxamine (DEF). This multifunctional nanoparticle, DEF-HCC-PEG, protected cells from both senescence and ferroptosis and restored nuclear and mitochondrial genome integrity in vitro and in vivo. We thus describe a potential molecular mechanism of hemin/iron-induced toxicity in ICH that involves a rapid induction of DSBs, senescence, and the consequent resistance to ferroptosis and provide a mechanistic-based combinatorial therapeutic strategy.
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Affiliation(s)
- Prakash Dharmalingam
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Girish Talakatta
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Joy Mitra
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Haibo Wang
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Paul J Derry
- Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas 77030, United States
| | | | - Emily A McHugh
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Roderic H Fabian
- Department of Neurology, Baylor College of Medicine, and Michael E. DeBakey VA Medical Center, Houston, Texas 77030, United States
| | - Kimberly Mendoza
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Velmarini Vasquez
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Pavana M Hegde
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Eugenia Kakadiaris
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Trenton Roy
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
| | - Istvan Boldogh
- Department of Microbiology and Immunology, University of Texas Medical Branch, Galveston, Texas 77555, United States
| | - Venkatesh L Hegde
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
| | - Sankar Mitra
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Weill Medical College of Cornell University, New York, New York 10065, United States
| | - James M Tour
- Departments of Chemistry, Computer Science, Materials Science and NanoEngineering, Smalley-Curl Institute and the NanoCarbon Center, Rice University, Houston, Texas 77005, United States
| | - Thomas A Kent
- Institute of Biosciences and Technology, Texas A&M Health Science Center, Houston, Texas 77030, United States
- Department of Chemistry, Rice University, Houston, Texas 77005, United States
- Stanley H. Appel Department of Neurology, Houston Methodist Hospital and Research Institute, Houston, Texas 77030, United States
| | - Muralidhar L Hegde
- Department of Radiation Oncology, Houston Methodist Research Institute, Houston, Texas 77030, United States
- Weill Medical College of Cornell University, New York, New York 10065, United States
- Center for Neuroregeneration, Department of Neurosurgery, Houston Methodist Neurological Institute, Houston Methodist, Houston, Texas 77030, United States
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27
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Rieux C, Goffinont S, Coste F, Tber Z, Cros J, Roy V, Guérin M, Gaudon V, Bourg S, Biela A, Aucagne V, Agrofoglio L, Garnier N, Castaing B. Thiopurine Derivative-Induced Fpg/Nei DNA Glycosylase Inhibition: Structural, Dynamic and Functional Insights. Int J Mol Sci 2020; 21:ijms21062058. [PMID: 32192183 PMCID: PMC7139703 DOI: 10.3390/ijms21062058] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2020] [Revised: 03/12/2020] [Accepted: 03/14/2020] [Indexed: 02/06/2023] Open
Abstract
DNA glycosylases are emerging as relevant pharmacological targets in inflammation, cancer and neurodegenerative diseases. Consequently, the search for inhibitors of these enzymes has become a very active research field. As a continuation of previous work that showed that 2-thioxanthine (2TX) is an irreversible inhibitor of zinc finger (ZnF)-containing Fpg/Nei DNA glycosylases, we designed and synthesized a mini-library of 2TX-derivatives (TXn) and evaluated their ability to inhibit Fpg/Nei enzymes. Among forty compounds, four TXn were better inhibitors than 2TX for Fpg. Unexpectedly, but very interestingly, two dithiolated derivatives more selectively and efficiently inhibit the zincless finger (ZnLF)-containing enzymes (human and mimivirus Neil1 DNA glycosylases hNeil1 and MvNei1, respectively). By combining chemistry, biochemistry, mass spectrometry, blind and flexible docking and X-ray structure analysis, we localized new TXn binding sites on Fpg/Nei enzymes. This endeavor allowed us to decipher at the atomic level the mode of action for the best TXn inhibitors on the ZnF-containing enzymes. We discovered an original inhibition mechanism for the ZnLF-containing Fpg/Nei DNA glycosylases by disulfide cyclic trimeric forms of dithiopurines. This work paves the way for the design and synthesis of a new structural class of inhibitors for selective pharmacological targeting of hNeil1 in cancer and neurodegenerative diseases.
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Affiliation(s)
- Charlotte Rieux
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Stéphane Goffinont
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Franck Coste
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Zahira Tber
- Institut de Chimie Organique et Analytique, UMR7311 CNRS-Orleans University, Université d’Orléans, Pôle de Chimie, rue de Chartres, F-45100 Orléans, France; (Z.T.); (S.B.); (L.A.)
| | - Julien Cros
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Vincent Roy
- Institut de Chimie Organique et Analytique, UMR7311 CNRS-Orleans University, Université d’Orléans, Pôle de Chimie, rue de Chartres, F-45100 Orléans, France; (Z.T.); (S.B.); (L.A.)
- Université d’Orléans, UFR Sciences et Techniques, rue de Chartres, 45100 Orléans, France
- Correspondence: (V.R.); (N.G.); (B.C.)
| | - Martine Guérin
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
- Université d’Orléans, UFR Sciences et Techniques, rue de Chartres, 45100 Orléans, France
| | - Virginie Gaudon
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Stéphane Bourg
- Institut de Chimie Organique et Analytique, UMR7311 CNRS-Orleans University, Université d’Orléans, Pôle de Chimie, rue de Chartres, F-45100 Orléans, France; (Z.T.); (S.B.); (L.A.)
| | - Artur Biela
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Vincent Aucagne
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
| | - Luigi Agrofoglio
- Institut de Chimie Organique et Analytique, UMR7311 CNRS-Orleans University, Université d’Orléans, Pôle de Chimie, rue de Chartres, F-45100 Orléans, France; (Z.T.); (S.B.); (L.A.)
- Université d’Orléans, UFR Sciences et Techniques, rue de Chartres, 45100 Orléans, France
| | - Norbert Garnier
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
- Université d’Orléans, UFR Sciences et Techniques, rue de Chartres, 45100 Orléans, France
- Correspondence: (V.R.); (N.G.); (B.C.)
| | - Bertrand Castaing
- Centre de Biophysique Moléculaire, UPR4301 CNRS, rue Charles Sadron, CEDEX 2, F-45071 Orléans, France; (C.R.); (S.G.); (F.C.); (J.C.); (M.G.); (V.G.); (A.B.); (V.A.)
- Correspondence: (V.R.); (N.G.); (B.C.)
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Sun Z, Xiong C, Teh SW, Lim JCW, Kumar S, Thilakavathy K. Mechanisms of Oral Bacterial Virulence Factors in Pancreatic Cancer. Front Cell Infect Microbiol 2019; 9:412. [PMID: 31867287 PMCID: PMC6904357 DOI: 10.3389/fcimb.2019.00412] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2019] [Accepted: 11/19/2019] [Indexed: 12/19/2022] Open
Abstract
Pancreatic cancer is a highly lethal disease, and most patients remain asymptomatic until the disease enters advanced stages. There is lack of knowledge in the pathogenesis, effective prevention and early diagnosis of pancreatic cancer. Recently, bacteria were found in pancreatic tissue that has been considered sterile before. The distribution of flora in pancreatic cancer tissue was reported to be different from normal pancreatic tissue. These abnormally distributed bacteria may be the risk factors for inducing pancreatic cancer. Therefore, studies on combined effect of multi-bacterial and multi-virulence factors may add to the knowledge of pancreatic cancer pathogenesis and aid in designing new preventive and therapeutic strategies. In this review, we outlined three oral bacteria associated with pancreatic cancer and their virulence factors linked with cancer.
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Affiliation(s)
- Zhong Sun
- Department of Biomedical Science, Universiti Putra Malaysia, Serdang, Malaysia
| | - ChengLong Xiong
- Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai, China
| | - Seoh Wei Teh
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jonathan Chee Woei Lim
- Pharmacotherapeutics Unit, Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Suresh Kumar
- Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, Serdang, Malaysia.,Genetics and Regenerative Medicine Research Centre, Universiti Putra Malaysia, Serdang, Malaysia.,UPM-MAKNA Cancer Research Laboratory, Institute of Bioscience, Universiti Putra Malaysia, Serdang, Malaysia
| | - Karuppiah Thilakavathy
- Department of Biomedical Science, Universiti Putra Malaysia, Serdang, Malaysia.,Genetics and Regenerative Medicine Research Centre, Universiti Putra Malaysia, Serdang, Malaysia
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Sokolova O, Naumann M. Crosstalk Between DNA Damage and Inflammation in the Multiple Steps of Gastric Carcinogenesis. Curr Top Microbiol Immunol 2019; 421:107-137. [PMID: 31123887 DOI: 10.1007/978-3-030-15138-6_5] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
Over the last years, intensive investigations in molecular biology and cell physiology extended tremendously the knowledge about the association of inflammation and cancer. In frame of this paradigm, the human pathogen Helicobacter pylori triggers gastritis and gastric ulcer disease, and contributes to the development of gastric cancer. Mechanisms, by which the bacteria-induced inflammation in gastric mucosa leads to intestinal metaplasia and carcinoma, are represented in this review. An altered cell-signaling response and increased production of free radicals by epithelial and immune cells account for the accumulation of DNA damage in gastric mucosa, if infection stays untreated. Host genetics and environmental factors, especially diet, can accelerate the process, which offers the opportunity of intervention based on a balanced nutrition. It is supposed that inflammation might influence stem- or progenitor cells in gastric tissue predisposing for metaplasia or tumor relapse. Herein, DNA is strongly mutated and labile, which restricts therapy options. Thus, the understanding of the mechanisms that underlie gastric carcinogenesis will be of preeminent importance for the development of strategies for screening and early detection. As most gastric cancer patients face late-stage disease with a poor overall survival, the development of multi-targeted therapeutic intervention strategies is a major challenge for the future.
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Affiliation(s)
- Olga Sokolova
- Institute of Experimental Internal Medicine, Otto von Guericke University, Leipziger Str. 44, 39120, Magdeburg, Germany.
| | - Michael Naumann
- Institute of Experimental Internal Medicine, Otto von Guericke University, Leipziger Str. 44, 39120, Magdeburg, Germany
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Makovec T. Idea to explore: The structure of the oxygen and iron ion. BIOCHEMISTRY AND MOLECULAR BIOLOGY EDUCATION : A BIMONTHLY PUBLICATION OF THE INTERNATIONAL UNION OF BIOCHEMISTRY AND MOLECULAR BIOLOGY 2018; 46:630-633. [PMID: 30462372 DOI: 10.1002/bmb.21181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 08/28/2018] [Accepted: 09/22/2018] [Indexed: 06/09/2023]
Abstract
Understanding diamagnetism of oxygenated and paramagnetism of deoxygenated hemoglobin, an important topic in (bio) chemistry for medical students, begins with the understanding of the detailed structure of the oxygen molecule. It continues with a short description of the structures of reactive oxygen species: the singlet form of oxygen, the superoxide, and peroxide anions. The article then describes the high spin and low spin form of the iron ion with its d-orbitals and explains why both forms with different diameters exist in the heme part. At the end, medical applications of the acquired knowledge are presented: the cooperative effect in hemoglobin and the principles of magnetic resonance imagining. © 2018 International Union of Biochemistry and Molecular Biology, 46(6):630-633, 2018.
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Affiliation(s)
- Tomaž Makovec
- Institute of Biochemistry, Medical Faculty, Ljubljana, Slovenia
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