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Zhao J, Zhou SQ, Chen YX, Pan X, Chen YZ, Zhuang YG. Causal Relationship between Mitochondrial-Associated Proteins and Sepsis in ICU Patients: A Mendelian Randomization Study. ACS OMEGA 2024; 9:8457-8463. [PMID: 38405532 PMCID: PMC10882587 DOI: 10.1021/acsomega.3c09676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Revised: 01/11/2024] [Accepted: 01/15/2024] [Indexed: 02/27/2024]
Abstract
BACKGROUND The alarming mortality rate of sepsis in ICUs has garnered significant attention. The precise etiology remains elusive. Mitochondria, often referred to as the cellular powerhouses, have been postulated to have a dysfunctional role, correlating with the onset and progression of sepsis. However, the exact causal relationship remains to be defined. METHOD Employing the Mendelian randomization approach, this study systematically analyzed data from the IEUOpenGWAS and UKbiobank databases concerning mitochondrial function-related proteins and their association with sepsis, aiming to delineate the causal relationship between the two. RESULTS The findings underscored a statistically significant association of GrpE1 with sepsis, registering a P value of 0.005 and an OR of 0.499 (95% CI: 0.307-0.810). Likewise, HTRA2, ISCU, and CUP3 each manifested significant associations with sepsis, yielding OR values of 0.585, 0.637, and 0.634, respectively. These results suggest potential implications of the aforementioned proteins in the pathogenesis of sepsis. CONCLUSION The present study furnishes novel evidence elucidating the roles of GrpE1, HTRA2, ISCU, and CUP3 in the pathophysiology of sepsis. Such insights pave the way for a deeper understanding of the pathological mechanisms underpinning sepsis and hint at promising therapeutic strategies for the future.
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Affiliation(s)
- Jian Zhao
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Shu-qin Zhou
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yu-xing Chen
- Department
of Gerontology, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Xin Pan
- Department
of Gerontology, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yuan-zhuo Chen
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
| | - Yu-gang Zhuang
- Department
of Emergency, Shanghai Tenth People’s
Hospital, Tongji University School of Medicine, Shanghai 200072,China
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Feodorova VA, Zaitsev SS, Lyapina AM, Kichemazova NV, Saltykov YV, Khizhnyakova MA, Evstifeev VV, Larionova OS. Whole genome sequencing characteristics of Chlamydia psittaci caprine AMK-16 strain, a promising killed whole cell veterinary vaccine candidate against chlamydia infection. PLoS One 2023; 18:e0293612. [PMID: 37903115 PMCID: PMC10615304 DOI: 10.1371/journal.pone.0293612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 10/16/2023] [Indexed: 11/01/2023] Open
Abstract
Chlamydia psittaci is a primary zoonotic pathogen with a broad host range causing severe respiratory and reproductive system infection in animals and humans. To reduce the global burden of C. psittaci-associated diseases on animal welfare and health and to control the pathogen spread in husbandry, effective vaccines based on promising vaccine candidate(s) are required. Recently, the caprine C. psittaci AMK-16 strain (AMK-16) demonstrated a high level of protection (up to 80-100%) in outbred mice and pregnant rabbits immunized with these formaldehyde-inactivated bacteria against experimental chlamydial wild-type infection. This study investigated the molecular characteristics of AMK-16 by whole-genome sequencing followed by molecular typing, phylogenetic analysis and detection of main immunodominant protein(s) eliciting the immune response in mouse model. Similarly to other C. psittaci, AMK-16 harbored an extrachromosomal plasmid. The whole-genome phylogenetic analysis proved that AMK-16 strain belonging to ST28 clustered with only C. psittaci but not with Chlamydia abortus strains. However, AMK-16 possessed the insert which resulted from the recombination event as the additional single chromosome region of a 23,100 bp size with higher homology to C. abortus (98.38-99.94%) rather than to C. psittaci (92.06-92.55%). At least six of 16 CDSs were absent in AMK-16 plasticity zone and 41 CDSs in other loci compared with the reference C. psittaci 6BC strain. Two SNPs identified in the AMK-16 ompA sequence resulted in MOMP polymorphism followed by the formation of a novel genotype/subtype including three other C. psittaci strains else. AMK-16 MOMP provided marked specific cellular and humoral immune response in 100% of mice immunized with the inactivated AMK-16 bacteria. Both DnaK and GrpE encoded by the recombination region genes were less immunoreactive, inducing only a negligible T-cell murine immune response, while homologous antibodies could be detected in 50% and 30% of immunized mice, respectively. Thus, AMK-16 could be a promising vaccine candidate for the development of a killed whole cell vaccine against chlamydiosis in livestock.
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Affiliation(s)
- Valentina A. Feodorova
- Laboratory for Fundamental and Applied Research, Department for Microbiology and Biotechnology, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Sergey S. Zaitsev
- Laboratory for Fundamental and Applied Research, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Anna M. Lyapina
- Laboratory for Fundamental and Applied Research, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Natalya V. Kichemazova
- Laboratory for Fundamental and Applied Research, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Yury V. Saltykov
- Laboratory for Fundamental and Applied Research, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Mariya A. Khizhnyakova
- Laboratory for Fundamental and Applied Research, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
| | - Vitaliy V. Evstifeev
- Laboratory of Viral and Chlamydial Infections, Federal Center for Toxicological, Radiation and Biological Safety, Kazan, Russia
- Department of Microbiology, Virology and Immunology, Kazan State Academy of Veterinary Medicine by N.E. Bauman, Kazan City, Russia
| | - Olga S. Larionova
- Laboratory for Fundamental and Applied Research, Department for Microbiology and Biotechnology, Saratov State University of Genetics, Biotechnology and Engineering Named After N.I. Vavilov, Saratov, Russia
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Zhang G, Han L, Li Z, Chen Y, Li Q, Wang S, Shi H. Screening of immunogenic proteins and evaluation of vaccine candidates against Mycoplasma synoviae. NPJ Vaccines 2023; 8:121. [PMID: 37582795 PMCID: PMC10427712 DOI: 10.1038/s41541-023-00721-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 08/03/2023] [Indexed: 08/17/2023] Open
Abstract
Mycoplasma synoviae (M. synoviae) is a serious avian pathogen that causes significant economic losses to chicken and turkey producers worldwide. The currently available live attenuated and inactivated vaccines provide limited protection. The objective of this study was to identify potential subunit vaccine candidates using immunoproteomics and reverse vaccinology analyses and to evaluate their preliminary protection. Twenty-four candidate antigens were identified, and five of them, namely RS01790 (a putative sugar ABC transporter lipoprotein), BMP (a substrate-binding protein of the BMP family ABC transporter), GrpE (a nucleotide exchange factor), RS00900 (a putative nuclease), and RS00275 (an uncharacterized protein), were selected to evaluate their immunogenicity and preliminary protection. The results showed that all five antigens had good immunogenicity, and they were localized on the M. synoviae cell membrane. The antigens induced specific humoral and cellular immune responses, and the vaccinated chickens exhibited significantly greater body weight gain and lower air sac lesion scores and tracheal mucosal thicknesses. Additionally, the vaccinated chickens had lower M. synoviae loads in throat swabs than non-vaccinated chickens. The protective effect of the RS01790, BMP, GrpE, and RS00900 vaccines was better than that of the RS00275 vaccine. In conclusion, our study demonstrates the potential of subunit vaccines as a new approach to developing M. synoviae vaccines, providing new ideas for controlling the spread of M. synoviae worldwide.
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Affiliation(s)
- Guihua Zhang
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Lejiabao Han
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Zewei Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Yifei Chen
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Quan Li
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China
| | - Shifeng Wang
- Department of Infectious Diseases and Immunology, College of Veterinary Medicine, University of Florida, Gainesville, FL, 32611-0880, USA
| | - Huoying Shi
- College of Veterinary Medicine, Yangzhou University, Yangzhou, 225009, Jiangsu, China.
- Jiangsu Co-Innovation Center for the Prevention and Control of Important Animal Infectious Diseases and Zoonoses, Yangzhou, China.
- Joint International Research Laboratory of Agriculture and Agri-Product Safety, Yangzhou University (JIRLAAPS), Yangzhou, China.
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DnaJ, a promising vaccine candidate against Ureaplasma urealyticum infection. Appl Microbiol Biotechnol 2022; 106:7643-7659. [PMID: 36269329 PMCID: PMC9589543 DOI: 10.1007/s00253-022-12230-4] [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: 05/17/2022] [Revised: 09/20/2022] [Accepted: 10/05/2022] [Indexed: 11/08/2022]
Abstract
Abstract
Ureaplasma urealyticum (U. urealyticum, Uu) is a common sexually transmitted pathogen that is responsible for diseases such as non-gonococcal urethritis, chorioamnionitis, and neonatal respiratory diseases. The rapid emergence of multidrug-resistant bacteria threatens the effective treatment of Uu infections. Considering this, vaccination could be an efficacious medical intervention to prevent Uu infection and disease. As a highly conserved molecular chaperone, DnaJ is expressed and upregulated by pathogens soon after infection. Here, we assessed the vaccine potential of recombinant Uu-DnaJ in a mouse model and dendritic cells. Results showed that intramuscular administration of DnaJ induced robust humoral- and T helper (Th) 1 cell-mediated immune responses and protected against genital tract infection, inflammation, and the pathologic sequelae after Uu infection. Importantly, the DnaJ protein also induced the maturation of mouse bone marrow–derived dendritic cells (BMDCs), ultimately promoting naïve T cell differentiation toward the Th1 phenotype. In addition, adoptive immunization of DnaJ-pulsed BMDCs elicited antigen-specific Immunoglobulin G2 (IgG2) antibodies as well as a Th1-biased cellular response in mice. These results support DnaJ as a promising vaccine candidate to control Uu infections. Key points • A novel recombinant vaccine was constructed against U. urealyticum infection. • Antigen-specific humoral and cellular immune responses after DnaJ vaccination. • Dendritic cells are activated by Uu-DnaJ, which results in a Th1-biased immune response. Supplementary Information The online version contains supplementary material available at 10.1007/s00253-022-12230-4.
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Santos-Junior MN, Neves WS, Santos RS, Almeida PP, Fernandes JM, Guimarães BCDB, Barbosa MS, da Silva LSC, Gomes CP, Sampaio BA, Rezende IDS, Correia TML, Neres NSDM, Campos GB, Bastos BL, Timenetsky J, Marques LM. Heterologous Expression, Purification, and Immunomodulatory Effects of Recombinant Lipoprotein GUDIV-103 Isolated from Ureaplasma diversum. Microorganisms 2022; 10:microorganisms10051032. [PMID: 35630474 PMCID: PMC9147684 DOI: 10.3390/microorganisms10051032] [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: 04/14/2022] [Revised: 05/05/2022] [Accepted: 05/07/2022] [Indexed: 02/06/2023] Open
Abstract
Ureaplasma diversum is a bacterial pathogen that infects cattle and can cause severe inflammation of the genital and reproductive systems. Lipid-associated membrane proteins (LAMPs), including GUDIV-103, are the main virulence factors in this bacterium. In this study, we heterologously expressed recombinant GUDIV-103 (rGUDIV-103) in Escherichia coli, purified it, and evaluated its immunological reactivity and immunomodulatory effects in bovine peripheral blood mononuclear cells (PBMCs). Samples from rabbits inoculated with purified rGUDIV-103 were analysed using indirect enzyme-linked immunosorbent assay and dot blotting to confirm polyclonal antibody production and assess kinetics, respectively. The expression of this lipoprotein in field isolates was confirmed via Western blotting with anti-rGUDIV-103 serum and hydrophobic or hydrophilic proteins from 42 U. diversum strains. Moreover, the antibodies produced against the U. diversum ATCC 49783 strain recognised rGUDIV-103. The mitogenic potential of rGUDIV-103 was evaluated using a lymphoproliferation assay in 5(6)-carboxyfluorescein diacetate succinimidyl ester−labelled bovine PBMCs, where it induced lymphocyte proliferation. Quantitative polymerase chain reaction analysis revealed that the expression of interleukin-1β, toll-like receptor (TLR)-α, TLR2, TLR4, inducible nitric oxide synthase, and caspase-3−encoding genes increased more in rGUDIV-103−treated PBMCs than in untreated cells (p < 0.05). Treating PBMCs with rGUDIV-103 increased nitric oxide and hydrogen peroxide levels. The antigenic and immunogenic properties of rGUDIV-103 suggested its suitability for immunobiological application.
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Affiliation(s)
- Manoel Neres Santos-Junior
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Wanderson Souza Neves
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
| | - Ronaldo Silva Santos
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
| | - Palloma Porto Almeida
- Bioinformatics and Computational Biology Lab, Division of Experimental and Translational Research, Brazilian National Cancer Institute (INCA), Rio de Janeiro 20231-050, Brazil;
| | - Janaina Marinho Fernandes
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
| | - Bruna Carolina de Brito Guimarães
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Maysa Santos Barbosa
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, Brazil; (M.S.B.); (I.d.S.R.); (J.T.)
| | - Lucas Santana Coelho da Silva
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Camila Pacheco Gomes
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Beatriz Almeida Sampaio
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Izadora de Souza Rezende
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, Brazil; (M.S.B.); (I.d.S.R.); (J.T.)
| | - Thiago Macedo Lopes Correia
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
| | - Nayara Silva de Macedo Neres
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
| | - Guilherme Barreto Campos
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Bruno Lopes Bastos
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
| | - Jorge Timenetsky
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, Brazil; (M.S.B.); (I.d.S.R.); (J.T.)
| | - Lucas Miranda Marques
- Department of Biointeraction, Multidisciplinary Institute of Health, Federal University of Bahia, Vitória da Conquista 40170-110, Brazil; (M.N.S.-J.); (W.S.N.); (R.S.S.); (J.M.F.); (T.M.L.C.); (N.S.d.M.N.)
- Department of Biology, and Biotechnology of Microorganisms, State University of Santa Cruz (UESC), Ilhéus 45662-900, Brazil; (B.C.d.B.G.); (L.S.C.d.S.); (C.P.G.); (B.A.S.); (G.B.C.); (B.L.B.)
- Department of Microbiology, Institute of Biomedical Science, University of São Paulo, São Paulo 05508-000, Brazil; (M.S.B.); (I.d.S.R.); (J.T.)
- Correspondence:
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