1
|
Deng R, Zheng H, Cai H, Li M, Shi Y, Ding S. Effects of helicobacter pylori on tumor microenvironment and immunotherapy responses. Front Immunol 2022; 13:923477. [PMID: 35967444 PMCID: PMC9371381 DOI: 10.3389/fimmu.2022.923477] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 07/04/2022] [Indexed: 12/13/2022] Open
Abstract
Helicobacter pylori is closely associated with gastric cancer. During persistent infection, Helicobacter pylori can form a microenvironment in gastric mucosa which facilitates the survival and colony formation of Helicobacter pylori. Tumor stromal cells are involved in this process, including tumor-associated macrophages, mesenchymal stem cells, cancer-associated fibroblasts, and myeloid-derived suppressor cells, and so on. The immune checkpoints are also regulated by Helicobacter pylori infection. Helicobacter pylori virulence factors can also act as immunogens or adjuvants to elicit or enhance immune responses, indicating their potential applications in vaccine development and tumor immunotherapy. This review highlights the effects of Helicobacter pylori on the immune microenvironment and its potential roles in tumor immunotherapy responses.
Collapse
Affiliation(s)
- Ruiyi Deng
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University First Medical School, Beijing, China
| | - Huiling Zheng
- Peking University Third Hospital, Department of Gastroenterology, Beijing, China
| | - Hongzhen Cai
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University First Medical School, Beijing, China
| | - Man Li
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
- Peking University Health Science Center, Peking University Third Medical School, Beijing, China
| | - Yanyan Shi
- Peking University Third Hospital, Research Center of Clinical Epidemiology, Beijing, China
| | - Shigang Ding
- Peking University Third Hospital, Department of Gastroenterology, Beijing, China
| |
Collapse
|
2
|
Tuan VP, Yahara K, Dung HDQ, Binh TT, Huu Tung P, Tri TD, Thuan NPM, Khien VV, Trang TTH, Phuc BH, Tshibangu-Kabamba E, Matsumoto T, Akada J, Suzuki R, Okimoto T, Kodama M, Murakami K, Yano H, Fukuyo M, Takahashi N, Kato M, Nishiumi S, Azuma T, Ogura Y, Hayashi T, Toyoda A, Kobayashi I, Yamaoka Y. Genome-wide association study of gastric cancer- and duodenal ulcer-derived Helicobacter pylori strains reveals discriminatory genetic variations and novel oncoprotein candidates. Microb Genom 2021; 7. [PMID: 34846284 PMCID: PMC8743543 DOI: 10.1099/mgen.0.000680] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Genome-wide association studies (GWASs) can reveal genetic variations associated with a phenotype in the absence of any hypothesis of candidate genes. The problem of false-positive sites linked with the responsible site might be bypassed in bacteria with a high homologous recombination rate, such as Helicobacter pylori, which causes gastric cancer. We conducted a small-sample GWAS (125 gastric cancer cases and 115 controls) followed by prediction of gastric cancer and control (duodenal ulcer) H. pylori strains. We identified 11 single nucleotide polymorphisms (eight amino acid changes) and three DNA motifs that, combined, allowed effective disease discrimination. They were often informative of the underlying molecular mechanisms, such as electric charge alteration at the ligand-binding pocket, alteration in subunit interaction, and mode-switching of DNA methylation. We also identified three novel virulence factors/oncoprotein candidates. These results provide both defined targets for further informatic and experimental analyses to gain insights into gastric cancer pathogenesis and a basis for identifying a set of biomarkers for distinguishing these H. pylori-related diseases.
Collapse
Affiliation(s)
- Vo Phuoc Tuan
- Department of Endoscopy, Cho Ray Hospital, Ho Chi Minh, Vietnam
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Koji Yahara
- Antimicrobial Resistance ResearchCenter, National Institute of Infectious Diseases, Tokyo, Japan
- *Correspondence: Koji Yahara,
| | | | - Tran Thanh Binh
- Department of Endoscopy, Cho Ray Hospital, Ho Chi Minh, Vietnam
| | - Pham Huu Tung
- Department of Endoscopy, Cho Ray Hospital, Ho Chi Minh, Vietnam
| | - Tran Dinh Tri
- Department of Endoscopy, Cho Ray Hospital, Ho Chi Minh, Vietnam
| | | | - Vu Van Khien
- Department of GI Endoscopy, 108 Central Hospital, Hanoi, Vietnam
| | | | - Bui Hoang Phuc
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
- Department of Microbiology, Cho Ray Hospital, Ho Chi Minh, Vietnam
| | | | - Takashi Matsumoto
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Junko Akada
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Rumiko Suzuki
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
| | - Tadayoshi Okimoto
- Department of Gastroenterology, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Masaaki Kodama
- Department of Gastroenterology, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Kazunari Murakami
- Department of Gastroenterology, Oita University Faculty of Medicine, Yufu, Oita, Japan
| | - Hirokazu Yano
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Tokyo, Japan
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Graduate School of Life Sciences, Tohoku University, Sendai, Japan
| | - Masaki Fukuyo
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Tokyo, Japan
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Department of Molecular Oncology, Chiba University, Chiba, Japan
| | - Noriko Takahashi
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Tokyo, Japan
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Department of Infectious Diseases, Kyorin University School of Medicine, Mitaka City, Tokyo, Japan
| | - Mototsugu Kato
- Division of Endoscopy, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
- Department of Gastroenterology, National Hospital Organization Hakodate Hospital, Hakodate, Hokkaido, Japan
| | - Shin Nishiumi
- Department of Gastroenterology, Graduate School of Medicine, Kobe University, Chuou-ku, Kobe, Hyogo, Japan
- Department of Omics Medicine, Hyogo College of Medicine, Hyogo, Japan
| | - Takashi Azuma
- Department of Gastroenterology, Graduate School of Medicine, Kobe University, Chuou-ku, Kobe, Hyogo, Japan
| | - Yoshitoshi Ogura
- Department of Bacteriology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
- Division of Microbiology, Department of Infectious Medicine, Kurume University School of Medicine, Kurume, Fukuoka, Japan
| | - Tetsuya Hayashi
- Department of Bacteriology, Faculty of Medical Sciences, Kyushu University, Fukuoka, Japan
| | - Atsushi Toyoda
- Advanced GenomicsCenter, National Institute of Genetics, Shizuoka, Japan
| | - Ichizo Kobayashi
- Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, University of Tokyo, Tokyo, Japan
- Institute of Medical Science, University of Tokyo, Tokyo, Japan
- Department of Infectious Diseases, Kyorin University School of Medicine, Mitaka City, Tokyo, Japan
- Research Center for Micro-Nano Technology, Hosei University, Tokyo, Japan
- *Correspondence: Ichizo Kobayashi, ;
| | - Yoshio Yamaoka
- Department of Environmental and Preventive Medicine, Oita University Faculty of Medicine, Oita, Japan
- Department of Medicine, gastroenterology section, Baylor College of Medicine, Houston TX, USA
- *Correspondence: Yoshio Yamaoka,
| |
Collapse
|
3
|
Edwards SW, Spofford EM, Price C, Wright HL, Salao K, Suttiprapa S, Sripa B. Opisthorchiasis-Induced Cholangiocarcinoma: How Innate Immunity May Cause Cancer. ADVANCES IN PARASITOLOGY 2018; 101:149-176. [PMID: 29907253 DOI: 10.1016/bs.apar.2018.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Innate, inflammatory responses towards persistent Opisthorchis viverrini (OV) infection are likely to contribute to the development of cholangiocarcinoma (CCA), a liver cancer that is rare in the West but prevalent in Greater Mekong Subregion countries in Southeast Asia. Infection results in the infiltration of innate immune cells into the bile ducts and subsequent activation of inflammatory immune responses that fail to clear OV but instead may damage local tissues within the bile ducts. Not all patients infected with OV develop CCA, and so tumourigenesis may be dependent on multiple factors including the magnitude of the inflammatory response that is activated in infected individuals. The purpose of this review is to summarize how innate immune responses may promote tumourigenesis following OV infection and if such responses can be used to predict CCA onset in OV-infected individuals. It also hypothesizes on the role that Helicobacterspp., which are associated with liver fluke infections, may play in activation of the innate the immune system to promote tissue damage and persistent inflammation leading to CCA.
Collapse
Affiliation(s)
- Steven W Edwards
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Edward M Spofford
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Charlotte Price
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Helen L Wright
- Institute of Integrative Biology, University of Liverpool, Liverpool, United Kingdom
| | - Kanin Salao
- Department of Microbiology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Sutas Suttiprapa
- Tropical Medicine Graduate Program, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| | - Banchob Sripa
- Tropical Medicine Graduate Program, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand; WHO Collaborating Centre for Research and Control of Opisthorchiasis (Southeast Asian Liver Fluke Disease), Department of Pathology, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand
| |
Collapse
|
4
|
Hong ZW, Yang YC, Pan T, Tzeng HF, Fu HW. Differential effects of DEAE negative mode chromatography and gel-filtration chromatography on the charge status of Helicobacter pylori neutrophil-activating protein. PLoS One 2017; 12:e0173632. [PMID: 28328957 PMCID: PMC5362085 DOI: 10.1371/journal.pone.0173632] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 02/22/2017] [Indexed: 01/19/2023] Open
Abstract
Helicobacter pylori neutrophil-activating protein (HP-NAP) is involved in H. pylori-associated gastric inflammation. HP-NAP is also a vaccine candidate, a possible drug target, and a potential diagnostic marker for H. pylori-associated diseases. Previously, we purified recombinant HP-NAP by one-step diethylaminoethyl (DEAE) negative mode chromatography by collecting the unbound fraction at pH 8.0 at 4°C. It remains unclear why HP-NAP does not bind to DEAE resins at the pH above its isoelectric point during the purification. To investigate how pH affects the surface net charge of HP-NAP and its binding to DEAE resins during the purification, recombinant HP-NAP expressed in Escherichia coli was subjected to DEAE negative mode chromatography at pH ranging from 7.0 to 9.0 at 25°C and the surface charge of purified HP-NAP was determined by capillary electrophoresis. A minimal amount of HP-NAP was detected in the elution fraction of DEAE Sepharose resin at pH 8.5, whereas recombinant HP-NAP was detected in the elution fraction of DEAE Sephadex resin only at pH 7.0 and 8.0. The purified recombinant HP-NAP obtained from the unbound fractions was not able to bind to DEAE resins at pH 7.0 to 9.0. In addition, the surface charge of the purified HP-NAP was neutral at pH 7.0 to 8.0 and was either neutral or slightly negative at pH 8.5 and 9.0. However, recombinant HP-NAP purified from gel-filtration chromatography was able to bind to DEAE Sepharose resin at pH 7.0 to 9.0 and DEAE Sephadex resin at pH 7.0. At pH 8.5 and 9.0, only the negatively charged species of HP-NAP were found. Thus, recombinant HP-NAP with different charge status can be differentially purified by DEAE negative mode chromatography and gel-filtration chromatography. Furthermore, the charge distribution on the surface of HP-NAP, the presence of impure proteins, and the overall net charge of the resins all affect the binding of HP-NAP to DEAE resins during the negative purification.
Collapse
Affiliation(s)
- Zhi-Wei Hong
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
| | - Yu-Chi Yang
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
| | - Timothy Pan
- Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
| | - Huey-Fen Tzeng
- Department of Applied Chemistry, National Chi Nan University, Puli, Nantou, Taiwan, Republic of China
- * E-mail: (HWF); (HFT)
| | - Hua-Wen Fu
- Institute of Molecular and Cellular Biology, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
- Department of Life Science, National Tsing Hua University, Hsinchu, Taiwan, Republic of China
- * E-mail: (HWF); (HFT)
| |
Collapse
|
5
|
Shan W, Kung HF, Ge R. Comparison of Iron-Binding Ability Between Thr70-NapA and Ser70-NapA of Helicobacter pylori. Helicobacter 2016; 21:192-200. [PMID: 26347349 DOI: 10.1111/hel.12266] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
BACKGROUND The neutrophil-activating protein (NapA) of Helicobacter pylori (H. pylori), with DNA-binding and iron seizing properties, is a fundamental virulence factor involved in H. pylori-related diseases. Compared with Ser70-NapA strain, Thr70-NapA strain is more intimately correlated with iron-deficiency anemia. METHODS To investigate whether two types of proteins differ in iron-binding ability, mutated Thr70-NapA and Ser70-NapA strains were established. Isothermal titration calorimetry (ITC) method was conducted to measure the binding between the NapA protein and Fe(2+) . The structural changes of NapA protein were also tested during iron interaction by fast protein liquid chromatography (FPLC) and circular dichroism (CD) methods. DNA-binding assay was performed for evaluate the affinity of both mutated and wild types of NapA with DNA. RESULTS Mutated Thr70-NapA had higher iron-binding ability than wild Ser70-NapA. The structural stability of Thr70-NapA was disrupted and became more active along with the rising concentration of Fe(2+) , whereas no similar association was observed between Ser70-NapA and Fe(2+) level. When the iron/protein molar ratio ranged from 10 to 20, both Ser70-NapA and Thr70-NapA displayed weaker DNA-binding ability. CONCLUSIONS Thr70-NapA has much stronger ability to sequester ferrous ion compared with Ser70-NapA in H. pylori. In addition, the DNA-binding property of NapA is dependent upon the Fe(2+) concentration.
Collapse
Affiliation(s)
- Weiran Shan
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, College of Life Sciences, Sun Yat-Sen University, Guangzhou, China
| | - Hsiang-Fu Kung
- State Key Laboratory of Oncology in South China, Collaborative Innovation Center of Cancer Medicine, Sun Yat-Sen University Cancer Center, Guangzhou, China
| | - Ruiguang Ge
- Key Laboratory of Gene Engineering of the Ministry of Education, State Key Laboratory of Biocontrol, College of Life Sciences, Sun Yat-Sen University, Guangzhou, China
| |
Collapse
|
6
|
Sanchuki HBS, Valdameri G, Moure VR, Rodriguez JA, Pedrosa FO, Souza EM, Korolik V, Ribeiro RR, Huergo LF. Conserved histidine residues at the ferroxidase centre of the Campylobacter jejuni Dps protein are not strictly required for metal binding and oxidation. MICROBIOLOGY-SGM 2015; 162:156-163. [PMID: 26555736 DOI: 10.1099/mic.0.000210] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Iron is an essential micronutrient for living organisms as it is involved in a broad variety of important biological processes. However, free iron inside the cell could be potentially toxic, generating hydroxyl radicals through the Fenton reaction. Dps (DNA-binding protein from starved cells) belongs to a subfamily of ferritins and can store iron atoms inside the dodecamer. The presence of a ferroxidase centre, composed of highly conserved residues, is a signature of this protein family. In this study, we analysed the role of two conserved histidine residues (H25 and H37) located at the ferroxidase centre of the Campylobacter jejuni Dps protein by replacing them with glycine residues. The C. jejuni H25G/H37G substituted variant showed reduced iron binding and ferroxidase activities in comparison with wt Dps, while DNA-binding activity remained unaffected. We also found that both CjDps wt and CjDps H25G/H37G were able to bind manganese atoms. These results indicate that the H25 and H37 residues at the ferroxidase centre of C. jejuni Dps are not strictly required for metal binding and oxidation.
Collapse
Affiliation(s)
- Heloisa B S Sanchuki
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| | - Glaucio Valdameri
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| | - Vivian R Moure
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| | - Jorge A Rodriguez
- Centro de Investigación y Asistencia en Tecnología y Diseño del Estado de Jalisco, A.C. Guadalajara, Mexico
| | - Fábio O Pedrosa
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| | - Emanuel M Souza
- Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| | - Victoria Korolik
- Institute for Glycomics, Griffith University, Gold Coast, Queensland, Australia
| | | | - Luciano F Huergo
- Setor Litoral, UFPR, Matinhos, PR, Brazil.,Departamento de Bioquímica e Biologia Molecular, UFPR Curitiba, PR, Instituto Nacional de Ciência e Tecnologia da Fixação Biológica de Nitrogênio, Brazil
| |
Collapse
|
7
|
Structures and metal-binding properties of Helicobacter pylori neutrophil-activating protein with a di-nuclear ferroxidase center. Biomolecules 2014; 4:600-15. [PMID: 24971723 PMCID: PMC4192664 DOI: 10.3390/biom4030600] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2014] [Revised: 06/03/2014] [Accepted: 06/04/2014] [Indexed: 01/24/2023] Open
Abstract
Helicobacter pylori causes severe diseases, such as chronic gastritis, peptic ulcers, and stomach cancers. H. pylori neutrophil-activating protein (HP-NAP) is an iron storage protein that forms a dodecameric shell, promotes the adhesion of neutrophils to endothelial cells, and induces the production of reactive oxygen radicals. HP-NAP belongs to the DNA-protecting proteins under starved conditions (Dps) family, which has significant structural similarities to the dodecameric ferritin family. The crystal structures of the apo form and metal-ion bound forms, such as iron, zinc, and cadmium, of HP-NAP have been determined. This review focused on the structures and metal-binding properties of HP-NAP. These metal ions bind at the di-nuclear ferroxidase center (FOC) by different coordinating patterns. In comparison with the apo structure, metal loading causes a series of conformational changes in conserved residues among HP-NAP and Dps proteins (Trp26, Asp52, and Glu56) at the FOC. HP-NAP forms a spherical dodecamer with 23 symmetry including two kinds of pores. Metal ions have been identified around one of the pores; therefore, the negatively-charged pore is suitable for the passage of metal ions.
Collapse
|
8
|
Crystal structure of Helicobacter pylori neutrophil-activating protein with a di-nuclear ferroxidase center in a zinc or cadmium-bound form. Biochem Biophys Res Commun 2012; 422:745-50. [PMID: 22618234 DOI: 10.1016/j.bbrc.2012.05.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2012] [Accepted: 05/12/2012] [Indexed: 11/23/2022]
Abstract
Helicobacter pylori neutrophil-activating protein (HP-NAP) is a Dps-like iron storage protein forming a dodecameric shell, and promotes adhesion of neutrophils to endothelial cells. The crystal structure of HP-NAP in a Zn(2+)- or Cd(2+)-bound form reveals the binding of two zinc or two cadmium ions and their bridged water molecule at the ferroxidase center (FOC). The two zinc ions are coordinated in a tetrahedral manner to the conserved residues among HP-NAP and Dps proteins. The two cadmium ions are coordinated in a trigonal-bipyramidal and distorted octahedral manner. In both structures, the second ion is more weakly coordinated than the first. Another zinc ion is found inside of the negatively-charged threefold-related pore, which is suitable for metal ions to pass through.
Collapse
|