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Abstract
The majority of invasive meningococcal disease (IMD) in the developed world is caused by capsular group B Neisseria meningitidis, however success with vaccination against organisms bearing this capsule has previously been restricted to control of geographically limited clonal outbreaks. As we enter a new era, with the first routine program underway to control endemic group B meningococcal disease for infants in the UK, it is timely to review the key landmarks in group B vaccine development, and discuss the issues determining whether control of endemic group B disease will be achieved. Evidence of a reduction in carriage acquisition of invasive group B meningococcal strains, after vaccination among adolescents, is imperative if routine immunization is to drive population control of disease beyond those who are vaccinated (i.e. through herd immunity). The need for multiple doses to generate a sufficiently protective response and reactogenicity remain significant problems with the new generation of vaccines. Despite these limitations, early data from the UK indicate that new group B meningococcal vaccines have the potential to have a major impact on meningococcal disease, and to provide new insight into how we might do better in the future.
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Affiliation(s)
- N Y Wang
- a School of Medicine , Monash University , Melbourne , Australia.,b Department of Paediatrics , Oxford Vaccine Group , Oxford , UK
| | - A J Pollard
- b Department of Paediatrics , Oxford Vaccine Group , Oxford , UK.,c NIHR Oxford Biomedical Research Centre, University of Oxford , Oxford , UK
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Sridhar S, Greenwood B, Head C, Plotkin SA, Sáfadi MA, Saha S, Taha MK, Tomori O, Gessner BD. Global incidence of serogroup B invasive meningococcal disease: a systematic review. THE LANCET. INFECTIOUS DISEASES 2015; 15:1334-46. [PMID: 26453240 DOI: 10.1016/s1473-3099(15)00217-0] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 07/07/2015] [Accepted: 07/09/2015] [Indexed: 01/15/2023]
Abstract
Use of recently licensed vaccines against Neisseria meningitidis serogroup B (NmB) will depend partly on disease burden estimates. We systematically reviewed NmB incidence and mortality worldwide between January, 2000, and March, 2015, incorporating data from 37 articles and 12 websites. Most countries had a yearly invasive NmB incidence of less than 2 per 100,000 people. Within these relatively low incidence rates (compared with common causes of invasive bacterial diseases), substantial variation was detected between countries, with a notably higher incidence in Australia, Europe, North America, and South America. China and India had reports only of sporadic cases, and except for South Africa, sub-Saharan Africa showed a near absence of disease. In countries with consistently collected data, NmB incidence has tended to decrease, even as the proportion of invasive meningococcal disease cases caused by serogroup B has increased. With few exceptions, case-fatality ratios were fairly consistent, ranging between 3% and 10%. In high-income countries, incidence rates of NmB were relatively low compared with other vaccine-preventable diseases and might be decreasing. High case-fatality ratios, substantial disease-related morbidity, and the threat of outbreaks could nevertheless make NmB an attractive target for preventive and reactive immunisation programmes. The low availability of data from low-income and middle-income countries suggests the need for improved surveillance before vaccination strategies are designed.
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Affiliation(s)
| | - Brian Greenwood
- Faculty of Infectious and Tropical Disease, London School of Hygiene and Tropical Medicine, London, UK
| | | | - Stanley A Plotkin
- Department of Pediatrics, University of Pennsylvania, Philadelphia, PA, USA
| | - Marco A Sáfadi
- Pediatrics Department, Faculdade de Ciências Médicas Santa Casa de São Paulo, São Paulo, Brazil
| | - Samir Saha
- Child Health Research Foundation, Department of Microbiology, Dhaka Shishu Hospital, Dhaka, Bangladesh
| | | | - Oyewale Tomori
- Department of Microbiology, College of Natural Sciences, Redeemer's University, Lagos, Nigeria
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Hu S, Zhang W, Li F, Hu Z, Ma E, Zheng T, Zhao Y, Li W, Zhou H, Shao Z, Xu J. Neisseria meningitidis serogroup W135 sequence type 11, Anhui Province, China, 2011-2013. Emerg Infect Dis 2015; 20:1236-8. [PMID: 24960586 PMCID: PMC4073845 DOI: 10.3201/eid2007.131138] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
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Whelan J, Bambini S, Biolchi A, Brunelli B, Robert–Du Ry van Beest Holle M. Outbreaks of meningococcal B infection and the 4CMenB vaccine: historical and future perspectives. Expert Rev Vaccines 2015; 14:713-36. [DOI: 10.1586/14760584.2015.1004317] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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Clonal analysis of Neisseria meningitidis serogroup B strains in South Africa, 2002 to 2006: emergence of new clone ST-4240/6688. J Clin Microbiol 2012; 50:3678-86. [PMID: 22972827 DOI: 10.1128/jcm.01079-12] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
From August 1999 through July 2002, hyperinvasive Neisseria meningitidis serogroup B (MenB) clonal complexes (CCs), namely, ST-32/ET-5 (CC32) and ST-41/44/lineage 3 (CC41/44), were predominant in the Western Cape Province of South Africa. This study analyzed MenB invasive isolates from a national laboratory-based surveillance system that were collected from January 2002 through December 2006. Isolates were characterized by pulsed-field gel electrophoresis (PFGE) (n = 302), and multilocus sequence typing (MLST) and PorA and FetA typing were performed on randomly selected isolates (34/302, 11%). In total, 2,400 cases were reported, with the highest numbers from Gauteng Province (1,307/2,400, 54%) and Western Cape Province (393/2,400, 16%); 67% (1,617/2,400) had viable isolates and 19% (307/1,617) were identified as serogroup B. MenB incidence remained stable over time (P = 0.77) (average incidence, 0.13/100,000 population [range, 0.10 to 0.16/100,000 population]). PFGE (302/307, 98%) divided isolates (206/302, 68%) into 13 clusters and 96 outliers. The largest cluster, B1, accounted for 25% of isolates (76/302) over the study period; its prevalence decreased from 43% (20/47) in 2002 to 13% (8/62) in 2006 (P < 0.001), and it was common in the Western Cape (58/76, 76%). Clusters B2 and B3 accounted for 10% (31/302) and 6% (19/302), respectively, and showed no significant change over time and were predominant in Gauteng. Randomly selected isolates from clusters B1, B2, and B3 belonged to CC32, CC41/44, and the new CC4240/6688, respectively. Overall, 15 PorA and 12 FetA types were identified. MenB isolates were mostly diverse with no single dominant clone; however, CC32 and CC41/44 accounted for 35% and the new CC4240/6688 was the third most prevalent clone.
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de Filippis I, de Lemos APS, Hostetler JB, Wollenberg K, Sacchi CT, Harrison LH, Bash MC, Prevots DR. Molecular epidemiology of Neisseria meningitidis serogroup B in Brazil. PLoS One 2012; 7:e33016. [PMID: 22431994 PMCID: PMC3303791 DOI: 10.1371/journal.pone.0033016] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2011] [Accepted: 02/03/2012] [Indexed: 11/23/2022] Open
Abstract
Background Neisseria meningitidis serogroup B has been predominant in Brazil, but no broadly effective vaccine is available to prevent endemic meningococcal disease. To understand genetic diversity among serogroup B strains in Brazil, we selected a nationally representative sample of clinical disease isolates from 2004, and a temporally representative sample for the state of São Paulo (1988–2006) for study (n = 372). Methods We performed multi-locus sequence typing (MLST) and sequence analysis of five outer membrane protein (OMP) genes, including novel vaccine targets fHbp and nadA. Results In 2004, strain B:4:P1.15,19 clonal complex ST-32/ET-5 (cc32) predominated throughout Brazil; regional variation in MLST sequence type (ST), fetA, and porB was significant but diversity was limited for nadA and fHbp. Between 1988 and 1996, the São Paulo isolates shifted from clonal complex ST-41/44/Lineage 3 (cc41/44) to cc32. OMP variation was associated with but not predicted by cc or ST. Overall, fHbp variant 1/subfamily B was present in 80% of isolates and showed little diversity. The majority of nadA were similar to reference allele 1. Conclusions A predominant serogroup B lineage has circulated in Brazil for over a decade with significant regional and temporal diversity in ST, fetA, and porB, but not in nadA and fHbp.
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Affiliation(s)
- Ivano de Filippis
- National Quality Control Institute (INCQS), Oswaldo Cruz Foundation (FIOCRUZ), Rio de Janeiro, Brazil
- Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research (CBER), Food and Drug Administration (FDA), Bethesda, Maryland, United States of America
- Epidemiology Unit, Laboratory of Clinical Infectious Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | | | | | - Kurt Wollenberg
- Office of Cyberinfrastructure and Computational Biology (OCICB), National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
| | | | - Lee H. Harrison
- Infectious Diseases Epidemiology Research Unit, University of Pittsburgh, Pittsburgh, Pennsylvania, United States of America
| | - Margaret C. Bash
- Laboratory of Bacterial Polysaccharides, Center for Biologics Evaluation and Research (CBER), Food and Drug Administration (FDA), Bethesda, Maryland, United States of America
| | - D. Rebecca Prevots
- Epidemiology Unit, Laboratory of Clinical Infectious Diseases, Division of Intramural Research, National Institute of Allergy and Infectious Diseases (NIAID), National Institutes of Health (NIH), Bethesda, Maryland, United States of America
- * E-mail:
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Klena JD, Wasfy MO, Nada RA, Ahmed SF, Maksoud MA, Marfin A, Pimentel G. Characterization of Neisseria meningitidis isolates from Egypt using multilocus sequence typing. Trans R Soc Trop Med Hyg 2012; 106:309-14. [PMID: 22405492 DOI: 10.1016/j.trstmh.2012.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2011] [Revised: 01/23/2012] [Accepted: 01/23/2012] [Indexed: 10/28/2022] Open
Abstract
To characterize Neisseria meningitidis isolates collected from cerebrospinal fluid of meningitis cases in Egypt (1998-2003) as part of surveillance studies, 67 isolates were serogrouped, tested for antibiotic sensitivity and analyzed using multilocus sequence typing (MLST). Results show that isolates expressing serogroup B (50.7%) and serogroup A (34.3%) antigens were predominant in Egypt during the surveillance period, possibly due to suppression of other serogroups by meningococcal vaccines in current use. Intermediate resistance to penicillin was observed in 71% of the isolates, suggesting a need for physicians to shift to third-generation cephalosporins during the empirical treatment of infection. Recurrent lineages of N. meningitidis in Egypt appear to originate from Europe and other Middle Eastern countries. Of 19 sequence types detected, five were unique to Africa and 10 were not observed previously in the MLST database. The information obtained illustrates the changing dynamics of meningitis after vaccine introduction in Egypt.
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Affiliation(s)
- John D Klena
- US Naval Medical Research Unit No. 3, Cairo, Egypt.
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Mothibeli KM, du Plessis M, von Gottberg A, Murphy E, Hoiseth SK, Zlotnick G, Klugman KP. Distribution of factor H binding protein beyond serogroup B: Variation among five serogroups of invasive Neisseria meningitidis in South Africa. Vaccine 2011; 29:2187-92. [PMID: 21144918 DOI: 10.1016/j.vaccine.2010.11.072] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2010] [Revised: 11/11/2010] [Accepted: 11/20/2010] [Indexed: 10/18/2022]
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Yang L, Zhang X, Peng J, Zhu Y, Dong J, Xu J, Jin Q. Distribution of surface-protein variants of hyperinvasive meningococci in China. J Infect 2009; 58:358-67. [PMID: 19324418 DOI: 10.1016/j.jinf.2009.02.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2008] [Revised: 02/24/2009] [Accepted: 02/25/2009] [Indexed: 11/20/2022]
Abstract
OBJECTIVE Information regarding the different types of FetA and PorB meningococci that circulate in various regions of the world is still scarce. The present study investigated the distribution of FetA and PorB variable region (VR) types among meningococci belonging to hyperinvasive lineages circulating in China. METHODS The approach consisted of genotypic analysis of 201 Neisseria meningitidis strains belonging to hyperinvasive lineages isolated in China during the period 1956-2006. RESULTS Sixteen different PorB types were found, 8 of which were newly identified. Of the 24 different FetA VR types, 3 were determined to be novel. Particular combinations of FetA and PorB types associated with distinct clonal complexes were also observed. Most cases of invasive disease were caused by five individual clones: A: P1.7-1,10: F5-5: ST-3 (cc1) with P3.6,11,10,7 (class 3 PorB protein; VR1-6, VR2-11, VR3-10, and VR4-7); A: P1.20,9: F3-1: ST-5 (cc5) with P3.4,11,10,7; A: P1.20,9: F3-1: ST-5 (cc5) with P3.9,11,10,7; A: P1.20,9: F3-1: ST-7 (cc5) with P3.4,11,10,7; and C: P1.7-2,14: F3-3: ST-4821 (cc4821) with P3.9,15,6,7. CONCLUSION A number of antigen-gene variants and combinations exhibited broad temporal and geographic distributions, although several invasive clones were mainly associated with a specified timeframe. The changes that are increasingly emerging in circulating strains and the prevalent clone replacement describe the molecular epidemiology of meningococcal disease in China. Our findings have implications for both public-health monitoring and further study of this organism.
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Affiliation(s)
- Li Yang
- State Key Laboratory for Molecular Virology and Genetic Engineering, Institute of Pathogen Biology, Chinese Academy of Medical Sciences, Beijing, China
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Weidlich L, Baethgen LF, Mayer LW, Moraes C, Klein CC, Nunes LS, Rios SDS, Kmetzsch CI, Rossetti ML, Zaha A. High prevalence of Neisseria meningitidis hypervirulent lineages and emergence of W135:P1.5,2:ST-11 clone in Southern Brazil. J Infect 2008; 57:324-31. [DOI: 10.1016/j.jinf.2008.07.014] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2008] [Revised: 07/25/2008] [Accepted: 07/29/2008] [Indexed: 11/17/2022]
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Sorhouet Pereira C, Regueira M, Mollerach M. PorA types in Neisseria meningitidis serogroup B isolated in Argentina from 2001 to 2003: implications for the design of an outer membrane protein-based vaccine. J Med Microbiol 2008; 57:338-342. [DOI: 10.1099/jmm.0.47631-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Identification ofNeisseria meningitidisPorA types remains important, as the PorA protein is a major immunogenic component of several meningococcal vaccines under development. In this study, 191N. meningitidisserogroup B isolates collected in Argentina through active laboratory-based surveillance from 2001 to 2003 were serosubtyped. Nucleotide sequences of theporAvariable region 1 (VR1) and VR2 regions were determined in 52 non-serosubtypeable isolates. A substantial number of distinct VR types were identified, and a new VR2 variant from the P1.16 family was described. This is the first report describing PorA types inN. meningitidisserogroup B isolates in Argentina. Furthermore, the wide diversity of subtypes detected by serosubtyping and genosubtyping reveals the difficulty in designing a useful outer-membrane vaccine applicable in this country. A possible mechanism responsible for altered PorA expression was analysed in two PorA types.
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Affiliation(s)
- Cecilia Sorhouet Pereira
- Departamento de Bacteriología, Instituto Nacional de Enfermedades Infecciosas – ANLIS ‘Dr Carlos G. Malbrán’, Av. Velez Sarsfield 563, 1281 Buenos Aires, Argentina
- Cátedra de Microbiología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 1113 Buenos Aires, Argentina
| | - Mabel Regueira
- Departamento de Bacteriología, Instituto Nacional de Enfermedades Infecciosas – ANLIS ‘Dr Carlos G. Malbrán’, Av. Velez Sarsfield 563, 1281 Buenos Aires, Argentina
| | - Marta Mollerach
- Cátedra de Microbiología, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires, Junin 956, 1113 Buenos Aires, Argentina
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de Filippis I, de Andrade CF, de Almeida AECC, Clementino MM, Fernandes CACM, de Carvalho ML, Vicente ACP. Neisseria meningitidis PorA variable regions: rapid detection of P1.7 and P1.19 variants by PCR. Lett Appl Microbiol 2007; 45:426-31. [PMID: 17897387 DOI: 10.1111/j.1472-765x.2007.02205.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
AIM Rapid characterization of variable region (VR)1 variants of the porA gene among invasive strains is crucial for outbreak management and epidemiology studies. Recent sequence analysis studies in Brazil showed that the VR1 P1.7 and P1.19 variants are highly prevalent, accounting for 68%, of the total number of VR1 variants characterized. The aim of this work is to develop a rapid polymerase chain reaction (PCR)-based method for genosubtyping Neisseria meningitidis by detection of porA variable regions P1.7 and P1.19. METHODS AND RESULTS PCR primers for the detection of porA VR1 P1.7 and P1.19 were designed and tested using 198 clinical N. meningitidis isolates that had been previously evaluated by porA sequencing. All 50 strains with VR1 P1.7 and all 65 strains with VR1 P1.19 were positively identified by the respective VR-specific PCR and no false-positive reactions occurred. CONCLUSIONS VR-specific PCR amplification accurately identified VR P1.7 and P1.19 strains. SIGNIFICANCE AND IMPACT OF THE STUDY To overcome the disadvantages of serosubtyping and sequencing for typing the porA VR1 segment of N. meningitidis, we developed a PCR-based method to rapidly and accurately detect VR1 P1.7 and P1.19 variants. This approach is highly specific and sensitive; moreover it may allow for genotype determination of culture-negative samples.
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Affiliation(s)
- I de Filippis
- Microbiology Dept., National Institute for Quality Control of Health, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.
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Cordeiro SM, Neves AB, Ribeiro CT, Petersen ML, Gouveia EL, Ribeiro GS, Lôbo TS, Reis JN, Salgado KM, Reis MG, Ko AI. Hospital-based surveillance of meningococcal meningitis in Salvador, Brazil. Trans R Soc Trop Med Hyg 2007; 101:1147-53. [PMID: 17681359 PMCID: PMC2042916 DOI: 10.1016/j.trstmh.2007.06.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2007] [Revised: 06/14/2007] [Accepted: 06/14/2007] [Indexed: 11/28/2022] Open
Abstract
This study aimed to describe the clinical, epidemiological and microbiological features of meningococcal meningitis in Salvador, Brazil. Between February 1996 and January 2001, a hospital-based surveillance prospectively identified cases of culture-positive meningococcal meningitis. Demographic and clinical data were collected through interview and medical chart review. Antisera and monoclonal antibodies were used to determine the serogroup and serotype:serosubtype of the isolates, respectively. Surveillance identified a total of 408 cases of meningococcal meningitis, with a case fatality rate of 8% (32/397). The mean annual incidence for the 304 culture-positive cases residing in metropolitan Salvador was 1.71 cases per 100,000 population. Infants <1 year old presented the highest incidence (14.7 cases per 100,000 population). Of the 377 serogrouped isolates, 82%, 16%, 2% and 0.3% were serogroups B, C, W135 and Y, respectively. A single serotype:serosubtype (4,7:P1.19,15) accounted for 64% of all cases. Continued surveillance is necessary to characterise strains and to define future prevention and control strategies.
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Affiliation(s)
- Soraia M. Cordeiro
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Alan B. Neves
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Cássio T. Ribeiro
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Maya L. Petersen
- Joint Medical Program/Division of Epidemiology, School of Public Health, University of California, Berkeley, CA, USA
| | - Edilane L. Gouveia
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Guilherme S. Ribeiro
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Tatiana S. Lôbo
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Joice N. Reis
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
- School of Pharmacy, Federal University of Bahia, Salvador, Brazil
| | - Kátia M. Salgado
- Couto Maia Hospital, Bahia Secretary of Health, Salvador, Brazil
| | - Mitermayer G. Reis
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
| | - Albert I. Ko
- Gonçalo Moniz Research Center, Oswaldo Cruz Foundation, Brazilian Ministry of Health, Rua Waldemar Falcão 121, Salvador, Bahia 40296-710, Brazil
- Division of International Medicine and Infectious Diseases, Weill Medical College of Cornell University, New York, USA
- * Corresponding author. Tel.: +55 71 3176 2302; fax: +55 71 3176 2281. E-mail address: (A.I. Ko)
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Pérez ME, Barberá R, Domínguez F, Otero O, Gutiérrez M, Falero-Diaz G, Sotolongo F, Sierra G. Development and characterization of a murine monoclonal antibody specific for the P1.15 PorA proteins from vaccine strain B:4,7:P1.19,15 of Neisseria meningitidis. Hybridoma (Larchmt) 2006; 25:243-7. [PMID: 16934022 DOI: 10.1089/hyb.2006.25.243] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Neisseria meningitidis isolates are conventionally classified by serosubtyping, which characterizes the reactivities of the PorA outer membrane protein variable-region epitopes with monoclonal antibodies (MAbs). New murine hybridomas, secreting specific MAbs against PorA of N. meningitidis serogroup B, were generated using conventional hybridoma procedures. Using outer membrane protein as antigen, we obtained two positive clones, and one of them we characterized. This MAb reacted, on whole-cell enzyme-linked immunosorbent assay (ELISA) and immunoblotting, only with strain subtype P1.15 and its IgG2b isotype. This MAb demonstrated bactericidal activity against the homologous strain in the presence of human complement.
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Affiliation(s)
- M E Pérez
- Centro de Investigación y Producción de Vacunas y Sueros, Instituto Finlay, La Habana, Cuba.
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Borrow R, Carlone GM, Rosenstein N, Blake M, Feavers I, Martin D, Zollinger W, Robbins J, Aaberge I, Granoff DM, Miller E, Plikaytis B, van Alphen L, Poolman J, Rappuoli R, Danzig L, Hackell J, Danve B, Caulfield M, Lambert S, Stephens D. Neisseria meningitidis group B correlates of protection and assay standardization--international meeting report Emory University, Atlanta, Georgia, United States, 16-17 March 2005. Vaccine 2006; 24:5093-107. [PMID: 16838413 DOI: 10.1016/j.vaccine.2006.03.091] [Citation(s) in RCA: 150] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- R Borrow
- Vaccine Evaluation Unit, Health Protection Agency, Manchester Royal Infirmary, Manchester M13 9WZ, United Kingdom.
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Law DKS, Lorange M, Ringuette L, Dion R, Giguère M, Henderson AM, Stoltz J, Zollinger WD, De Wals P, Tsang RSW. Invasive meningococcal disease in Quebec, Canada, due to an emerging clone of ST-269 serogroup B meningococci with serotype antigen 17 and serosubtype antigen P1.19 (B:17:P1.19). J Clin Microbiol 2006; 44:2743-9. [PMID: 16891487 PMCID: PMC1594649 DOI: 10.1128/jcm.00601-06] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2006] [Revised: 04/11/2006] [Accepted: 05/31/2006] [Indexed: 11/20/2022] Open
Abstract
During periods of endemic meningococcal disease, serogroup B Neisseria meningitidis is responsible for a significant percentage of invasive diseases, and no particular clone or strain predominates (F. E. Ashton and D. A. Caugant, Can. J. Microbiol. 47: 293-289, 2001), However, in the winter of 2004 to 2005, a cluster of serogroup B meningococcal disease occurred in one region in the province of Québec, Canada. The N. meningitidis strain responsible for this cluster of cases was identified as sequence type ST-269 with the antigenic formula B:17:P1.19. Retrospective analysis of isolates from 2000 onwards showed that this clone first emerged in the province of Québec in 2003. The emergence of this clone of serogroup B meningococci occurred after a mass vaccination against serogroup C N. meningitidis, suggesting possible capsule replacement.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antigens, Bacterial/analysis
- Child
- Cluster Analysis
- DNA Fingerprinting
- DNA, Bacterial/genetics
- Electrophoresis, Gel, Pulsed-Field
- Endemic Diseases
- Female
- Humans
- Male
- Meningitis, Meningococcal/epidemiology
- Meningitis, Meningococcal/microbiology
- Middle Aged
- Neisseria meningitidis, Serogroup B/classification
- Neisseria meningitidis, Serogroup B/genetics
- Neisseria meningitidis, Serogroup B/immunology
- Polymorphism, Restriction Fragment Length
- Quebec/epidemiology
- Sequence Analysis, DNA
- Serotyping
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Affiliation(s)
- Dennis K S Law
- National Microbiology Laboratory, Public Health Agency of Canada, Winnipeg, Manitoba, Canada
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Ferrari G, Garaguso I, Adu-Bobie J, Doro F, Taddei AR, Biolchi A, Brunelli B, Giuliani MM, Pizza M, Norais N, Grandi G. Outer membrane vesicles from group BNeisseria meningitidis Δgna33 mutant: Proteomic and immunological comparison with detergent-derived outer membrane vesicles. Proteomics 2006; 6:1856-66. [PMID: 16456881 DOI: 10.1002/pmic.200500164] [Citation(s) in RCA: 135] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We compared the proteome of detergent-derived group B Neisseria meningitidis (MenB) outer membrane vesicles (DOMVs) with the proteome of outer membrane vesicles (m-OMVs) spontaneously released into culture supernatant by MenB delta gna33, a mutant in which the gene coding for a lytic transglycosylase homologous to the E. coli MltA was deleted. In total, 138 proteins were identified in DOMVs by 1- and 2-DE coupled with MS; 64% of these proteins belonged to the inner membrane and cytoplasmic compartments. By contrast, most of the 60 proteins of m-OMVs were classified by PSORT as outer membrane proteins. When tested for their capacity to elicit bactericidal antibodies, m-OMVs elicited a broad protective activity against a large panel of MenB strains. Therefore, the identification of mutations capable of conferring an OMV-releasing phenotype in bacteria may represent an attractive approach to study bacterial membrane composition and organization, and to design new efficacious vaccine formulations.
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Affiliation(s)
- Germano Ferrari
- Biochemistry and Molecular Biology Unit, Chiron Vaccines, Siena, Italy
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18
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de Filippis I, Vicente ACP. Multilocus sequence typing and repetitive element-based polymerase chain reaction analysis of Neisseria meningitidis isolates in Brazil reveal the emergence of 11 new sequence types genetically related to the ST-32 and ST-41/44 complexes and high prevalence of strains related to hypervirulent lineages. Diagn Microbiol Infect Dis 2005; 53:161-7. [PMID: 16243472 DOI: 10.1016/j.diagmicrobio.2005.06.015] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2005] [Accepted: 06/21/2005] [Indexed: 11/28/2022]
Abstract
Eighty-four strains of Neisseria meningitidis isolated from patients with meningococcal disease in 4 states of Brazil were analyzed by multilocus sequence typing and repetitive element-based polymerase chain reaction (Rep-PCR). The majority of strains analyzed (82%) belonged to 4 hypervirulent lineages, and 11 of 20 new sequence type (STs) characterized were related to hypervirulent lineages. Sequences of fetA and porA genes were analyzed, and the majority were related to profiles present in the ST-32 complex/electrophoretic type (ET)-5 complex. Rep-PCR analysis showed a unique electrophoretic pattern among strains related to hypervirulent lineages. Considering that 81% of the strains were serogroup B and strains belonging to the ST-32/ET-5 complex are genetically related to the Cuban vaccine strain used in a mass vaccination from 1990 to 1994 in Brazil, we believe that this vaccine did not confer effective herd immunity even among the age group within the vaccine showed higher efficacy. Our results once more raise the question about which strains should be used in the development of a new vaccine against N. meningitidis serogroup B.
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Affiliation(s)
- Ivano de Filippis
- Depto. De Microbiologia, Instituto Nacional de Controle de Qualidade em Saúde, Fundação Oswaldo Ctuz, Rio de Janeiro 21045-900, Brazil.
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Vicente D, Esnal O, Michaus L, López de Goicoechea MJ, Cisterna R, Pérez-Trallero E. Prevalence of genosubtypes (PorA types) of serogroup B invasive meningococcus in the north of Spain from 2000 to 2003. J Med Microbiol 2005; 54:381-384. [PMID: 15770024 DOI: 10.1099/jmm.0.45855-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The composition of new vaccines against Neisseria meningitidis serogroup B is based on differences in the variable regions VR1 and VR2 of the class 1 outer-membrane protein (PorA) of meningococci. Genosubtyping of 96 N. meningitidis B isolates from blood or cerebrospinal fluid from 2000 to 2003 in the north of Spain allowed characterization of all the strains. Twenty-six genosubtypes or distinct PorA types were obtained. The most prevalent were P1.5-1, 10-8 (20 strains), P1.19, 15 (14 strains), P1.22, 9 (11 strains) and P1.5, 2 (nine strains), while 17 genosubtypes were represented by only one or two strains. The wide diversity of genosubtypes observed and their differences compared with those found in other regions reveals the difficulty in designing a useful outer-membrane vesicle vaccine applicable to different regions of the world.
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Affiliation(s)
- Diego Vicente
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
| | - Olatz Esnal
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
| | - Lourdes Michaus
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
| | - Maria José López de Goicoechea
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
| | - Ramón Cisterna
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
| | - Emilio Pérez-Trallero
- Microbiology Department, Hospital Donostia and Basque Country Meningococcal Reference Centre, Paseo Dr Beguiristain s/n, 20014 San Sebastián (Gipuzkoa), Spain 2Microbiology Laboratory, Hospital Txagorritxu, Vitoria, Spain 3Microbiology Laboratory, Hospital Galdácano, Galdácano, Spain 4Microbiology Department, Hospital Basurto, Bilbao, Spain
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20
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Fukasawa LO, Dias WO, Schenkman RPF, Raw I, Tanizaki MM. Adjuvant can improve protection induced by OMV vaccine against Neisseria meningitidis serogroups B/C in neonatal mice. ACTA ACUST UNITED AC 2004; 41:205-10. [PMID: 15196569 DOI: 10.1016/j.femsim.2004.03.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2003] [Revised: 02/12/2004] [Accepted: 03/09/2004] [Indexed: 10/26/2022]
Abstract
Meningococcal outer membrane vesicle (OMV) vaccines are weak antigens in infants. This study aimed at investigating alternative adjuvants for induction of functional antibodies in newborn mice. Serogroup B/C anti-meningococcal vaccines, consisting of capsular polysaccharide from serogroup C (PSC) conjugated to OMV from one serogroup B serosubtype prevalent in Brazil, combined with OMV from another prevalent serosubtype, were tested in newborn and adult mice with the following adjuvants: aluminum hydroxide, MPL (monophosphoryl lipid A), Titermax and MF59. Total IgG, IgG avidity index determination and bactericidal assay were performed with sera from immunized mice. Antibodies induced against PSC in newborn mice showed avidity and bactericidal titers, similar to those obtained in adult mice, independently of the adjuvant. Evidence is presented that the inclusion of MF59 enhanced the immune response against OMV in newborn mice.
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Affiliation(s)
- Lucila O Fukasawa
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05503-900 São Paulo, Brazil
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21
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de Filippis I, Salles CA, Zahner V, do Nascimento CRS, Momen H. Genetic diversity of Neisseria meningitidis strains isolated in Rio de Janeiro, Brazil, evaluated by multilocus enzyme electrophoresis. Lett Appl Microbiol 2004; 39:232-9. [PMID: 15287867 DOI: 10.1111/j.1472-765x.2004.01570.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
AIMS To analyse Neisseria meningitidis isolates from meningococcal meningitis cases in Rio de Janeiro (Brazil) from 1990 to 1993 and 1999-2002, to determine the genetic and relatedness with hypervirulent and epidemic strains. METHODS AND RESULTS The isolates were analysed by multilocus enzyme electrophoresis (MEE) clustering into 83 electrophoretic types (ET). All isolates from 1999 to 2002, formed a cluster which included one strain of the ET-5 complex worldwide associated with epidemics. CONCLUSIONS The overall results suggested a panmictic structure probably because of recombination events. The observation of a separated cluster including isolates from 1999 to 2002 and an ET-5 complex strain, also suggested the introduction of strains genetically related with this hypervirulent complex in the State of Rio de Janeiro (Brazil) over the last 5 years. SIGNIFICANCE AND IMPACT OF THE STUDY The presence of strains related to the ET-5 complex in several states of Brazil was already described elsewhere, but this is the first time it was reported in the State of Rio de Janeiro. Our findings reinforce the necessity to genetically determine the clones which should be considered to produce a national vaccine against meningococcal meningitis.
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Affiliation(s)
- I de Filippis
- Depto. de Microbiologia, Instituto Nacional de Controle de Qualidade em Saúde, FIOCRUZ, Rio de Janeiro, Brazil.
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22
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Takahashi H, Kuroki T, Watanabe Y, Tanaka H, Inouye H, Yamai S, Watanabe H. Characterization of Neisseria meningitidis isolates collected from 1974 to 2003 in Japan by multilocus sequence typing. J Med Microbiol 2004; 53:657-662. [PMID: 15184538 DOI: 10.1099/jmm.0.45541-0] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Analysis of 182 Neisseria meningitidis strains isolated over the past 30 years in Japan by serogroup typing and multilocus sequence typing (MLST) was performed. The serogroups of the 182 Japanese isolates were B (103 isolates), Y (39), W135 (1) and non-groupable (39). By MLST analysis, 65 different sequence types (ST) were identified, 42 of which were not found in the MLST database as of January 2004 and seemed to be unique to Japan. Statistical analysis of the MLST results revealed that, although the Japanese isolates seemed to be genetically divergent, they were classified into six major clonal complexes and other minor complexes. Among these isolates, well-documented ST complexes found worldwide were present, such as ST-23 complex (49 isolates), ST-44 complex (41 isolates) and ST-32 complex (8 isolates). On the other hand, a new clonal complex designated ST-2046 complex (28 isolates), which has not been identified in other countries, was also found, suggesting that this clone was indigenous to Japan. Taken together, it was speculated that meningococcal isolates in Japan comprised heterogeneous clones, which were derived both from clones identified in other countries and clones unique to Japan.
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Affiliation(s)
- Hideyuki Takahashi
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Toshiro Kuroki
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Yuko Watanabe
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Hiroshi Tanaka
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Hiroo Inouye
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Shiro Yamai
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
| | - Haruo Watanabe
- Department of Bacteriology, National Institute of Infectious Diseases, Tokyo, Japan 2Department of Microbiology, Kanagawa Prefectural Public Health Laboratory, Chigasaki, Japan 3Department of Bacteriology, Ehime Prefectural Institute of Public Health and Environmental Science, Matsuyama, Japan
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23
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Jessouroun E, da Silveira IFB, Larangeira AP, Pereira S, Fernandes SA, Rabinovitch L, Frasch CE, Castro-Faria-Neto HC, Bozza PT. Outer membrane vesicles (OMVs) and detoxified lipooligosaccharide (dLOS) obtained from Brazilian prevalent N. meningitidis serogroup B strains protect mice against homologous and heterologous meningococcal infection and septic shock. Vaccine 2004; 22:2617-25. [PMID: 15193387 DOI: 10.1016/j.vaccine.2003.12.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2003] [Revised: 12/11/2003] [Accepted: 12/11/2003] [Indexed: 11/16/2022]
Abstract
Neisseria meningitidis (N. meningitidis) is a serious bacterial pathogen that causes life-threatening invasive bacterial infections especially in children below 2 years of age, teenagers and young adults. We have investigated the protective potential of outer membrane vesicles (OMVs) and detoxified lipooligosaccharide (dLOS) obtained from Brazilian prevalent N. meningitidis serogroup B strains. Swiss mice were immunized with different combinations of OMV and dLOS from N. meningitidis serogroup B strains compared to a reference vaccine (VA-MENGOC-BC), Cuba). The OMVs + dLOS from Brazilian prevalent strains induced higher bactericidal antibody titers against homologous and heterologous target strains and stronger inhibition of thrombocytopenia as compared to the reference vaccine. When the challenge was performed with the B strain, all immunogens tested showed similar survival rates (80%) significantly higher than the control group. Bacterial clearance against the group B strain was comparable for animals immunized with the tested immunogen and the reference vaccine. Inclusion of dLOS from the B strain with the OMV, induced a similar clearance of C strain bacteria as compared to VA-MENGOC-BC. The immunogens, as well as the reference vaccine drastically inhibited increases in TNF-alpha and IL-6 plasma levels after challenge. In conclusion, the OMV/dLOS formulation obtained from Brazilian prevalent strains of N. meningitidis has a remarkable performance protecting mice against the lethal effects of meningococcal challenge showing a good potential as a vaccine and should be considered for clinical evaluation.
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Affiliation(s)
- Ellen Jessouroun
- Laboratório de Tecnologias Bacterianas, Departamento de Desenvolvimento Tecnológico-Bio-Manguinhos, FIOCRUZ, Rio de Janeiro, RJ, Brazil.
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24
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Raghunathan PL, Bernhardt SA, Rosenstein NE. Opportunities for Control of Meningococcal Disease in the United States. Annu Rev Med 2004; 55:333-53. [PMID: 14746525 DOI: 10.1146/annurev.med.55.091902.103612] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
The United States currently has relatively low rates of meningococcal disease caused by Neisseria meningitidis. Serogroups Y, C, and B are most common. Although most cases are sporadic, a minority are associated with outbreaks. Pediatric populations have disproportionately higher rates of disease, but nearly two thirds of all cases occur in persons aged 15 years and older. The major challenge to control of domestic meningococcal disease is the absence of a vaccine to prevent sporadic cases spanning many age groups. The quadrivalent A/C/Y/W-135 meningococcal polysaccharide vaccine is licensed in the United States, but because of its limited efficacy in children under two years of age, it is recommended for high-risk groups and outbreak response rather than routine childhood immunization. New conjugate meningococcal vaccines have successfully reduced endemic disease in the United Kingdom, and similar vaccines promise to have a dramatic impact on the burden of meningococcal disease in the United States.
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Affiliation(s)
- Pratima L Raghunathan
- Meningitis and Special Pathogens Branch, Centers for Disease Control and Prevention, 1600 Clifton Road, Atlanta, Georgia 30333, USA.
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25
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Gorla MCO, Lemos APS, Sacchi CT, de Moraes JC, Milagres LG. Comparison of PorA VR types and porA promoter sequence from Neisseria meningitidis B isolated from non-immunised children and vaccine failures immunised with a serogroup B outer membrane protein vaccine. Vaccine 2003; 21:2871-6. [PMID: 12798629 DOI: 10.1016/s0264-410x(03)00166-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
PorA protein is an important component of group B meningococcal protein-based vaccines. The goals of this study were: (i) to classify the non-serosubtypable strains recovered from vaccine failures and controls by porA variable region (VR) type; (ii) to investigate if point mutations of VRs of the porA gene are present in P1.19,15 strains recovered from vaccine failures and controls; (iii) to investigate if nucleotide sequence variation in the promoter region of porA gene is related to low expression of PorA protein. VR type P1.19,15 predominated in younger vaccine failures (3-47 months) compared to older failures (48-83 months). No changes in VRs of porA were observed in 46 P1.19,15 strains studied. A promoter spacer of 16bp and 10 guanidine residues in the polymeric G tract was detected in five of six strains with weak PorA expression. Overall, this study indicated that lack of antibody response was probably the major cause of low vaccine efficacy in young children.
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Affiliation(s)
- Maria Cecília O Gorla
- Instituto Adolfo Lutz, Seção de Bacteriologia, Av. Dr. Arnaldo, 355, CEP 01246-902 São Paulo, Brazil
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26
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Fukasawa LO, Gorla MCO, Lemos APS, Schenkman RPF, Brandileone MCC, Fox JW, Raw I, Frasch CE, Tanizaki MM. Immune response to native NadA from Neisseria meningitidis and its expression in clinical isolates in Brazil. J Med Microbiol 2003; 52:121-125. [PMID: 12543917 DOI: 10.1099/jmm.0.05017-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A mAb against the NadA protein from Neisseria meningitidis strain 3006 (serosubtype B : 2b : P1.2 : P5.2,8) demonstrated strong bactericidal activity against Brazilian epidemic serogroup B strain N44/89 (B : 4,7 : P1.19,15 : P5.5,7) and a serogroup C strain, IMC 2135 (C : 2a : P1.5,2), but not against another serogroup C strain, N1002/90 (C : 2b : P1.3 : P5.8). The immunogenicity of native NadA in an outer-membrane vesicle (OMV) preparation was also tested. Serum from mice immunized with OMV from serogroup B strain N44/89, which contains the NadA protein, showed bactericidal activity against serogroup B and C strains possessing NadA. In dot-blot analysis of 100 serogroup B and 100 serogroup C isolates from Brazilian patients, the mAb to NadA recognized about 60 % of the samples from both serogroups. The molecular mass of the NadA protein from strain N44/89 determined by mass spectrometry was 37 971 Da and the peptide sequences were identical to those of NadA from N. meningitidis strain MC58.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Bacterial/biosynthesis
- Antibodies, Bacterial/blood
- Antibodies, Bacterial/immunology
- Antibodies, Monoclonal/immunology
- Antibody Specificity
- Antigens, Bacterial/chemistry
- Antigens, Bacterial/immunology
- Bacterial Proteins/chemistry
- Bacterial Proteins/immunology
- Brazil
- Cross Reactions
- Electrophoresis, Polyacrylamide Gel
- Humans
- Immunoblotting
- Male
- Mass Spectrometry
- Mice
- Mice, Inbred C3H
- Molecular Weight
- Neisseria meningitidis/immunology
- Neisseria meningitidis, Serogroup B/immunology
- Neisseria meningitidis, Serogroup C/immunology
- Serotyping
- Vaccination
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Affiliation(s)
- Lucila O Fukasawa
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Maria Cecília O Gorla
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Ana Paula S Lemos
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Rocilda P F Schenkman
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Maria Cristina C Brandileone
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Jay W Fox
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Isaias Raw
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Carl E Frasch
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
| | - Martha M Tanizaki
- Centro de Biotecnologia, Instituto Butantan, Avenida Vital Brasil 1500, CEP 05504-900, São Paulo, Brazil 2Curso de Pós-Graduação em Biotecnologia, USP-Butantan-IPT, Brazil 3Serviço de Bacteriologia, Instituto Adolfo Lutz, São Paulo, Brazil 4Department of Microbiology, University of Virginia, Charlottesville, VA, USA 5Center for Biologics Evaluation and Research, Food and Drug Administration, Bethesda, MD, USA
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