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Zhang H, Luo Q, He Y, Zheng Y, Sha H, Li G, Kong W, Liao J, Zhao M. Research Progress on the Development of Porcine Reproductive and Respiratory Syndrome Vaccines. Vet Sci 2023; 10:491. [PMID: 37624278 PMCID: PMC10459618 DOI: 10.3390/vetsci10080491] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2023] [Revised: 07/26/2023] [Accepted: 07/27/2023] [Indexed: 08/26/2023] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is a highly contagious disease in the pig industry, but its pathogenesis is not yet fully understood. The disease is caused by the PRRS virus (PRRSV), which primarily infects porcine alveolar macrophages and disrupts the immune system. Unfortunately, there is no specific drug to cure PRRS, so vaccination is crucial for controlling the disease. There are various types of single and combined vaccines available, including live, inactivated, subunit, DNA, and vector vaccines. Among them, live vaccines provide better protection, but cross-protection is weak. Inactivated vaccines are safe but have poor immune efficacy. Subunit vaccines can be used in the third trimester of pregnancy, and DNA vaccines can enhance the protective effect of live vaccines. However, vector vaccines only confer partial protection and have not been widely used in practice. A PRRS vaccine that meets new-generation international standards is still needed. This manuscript provides a comprehensive review of the advantages, disadvantages, and applicability of live-attenuated, inactivated, subunit, live vector, DNA, gene-deletion, synthetic peptide, virus-like particle, and other types of vaccines for the prevention and control of PRRS. The aim is to provide a theoretical basis for vaccine research and development.
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Affiliation(s)
- Hang Zhang
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Qin Luo
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Yingxin He
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Yajie Zheng
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Huiyang Sha
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Gan Li
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Weili Kong
- Gladstone Institutes of Virology and Immunology, University of California, San Francisco, CA 94158, USA;
| | - Jiedan Liao
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
| | - Mengmeng Zhao
- School of Life Science and Engineering, Foshan University, Foshan 528000, China; (H.Z.); (Q.L.); (Y.H.); (Y.Z.); (H.S.); (G.L.)
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Fornyos K, Szabó I, Lebhardt K, Bálint Á. Development of a farm-specific real-time quantitative RT-PCR assay for the detection and discrimination of wild-type porcine reproductive respiratory syndrome virus and the vaccine strain in a farm under eradication. Acta Vet Hung 2022; 70:254-261. [PMID: 36053720 DOI: 10.1556/004.2022.00020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Accepted: 06/30/2022] [Indexed: 11/19/2022]
Abstract
Porcine reproductive and respiratory syndrome (PRRS) is one of the most important diseases of swine causing severe economic losses worldwide, therefore intensive efforts are taken to eliminate PRRS virus (PRRSV) from infected herds for complete eradication. The most efficient, fastest but at the same time the most expensive eradication method is depopulation-repopulation. In order to reduce costs, a number of farms prefer to perform their eradication process with continuous production using modified live vaccine (MLV) immunisation. However, the commercial PRRSV RT-PCR kits do not have the capacity to discriminate infected from vaccinated animals. In this paper, we describe a simple discriminatory duplex TaqMan RT-PCR assay based on common forward and reverse primers, as well as two differently labelled MLV- and wild-type PRRSV-specific probes. The discriminatory PCR test we designed is a fast and efficacious method for processing large quantities of samples. The assay is cheap, flexible, easy to apply in different herds using different MLVs, but should be checked, and can be modified based on the sequence data obtained during the permanent monitoring examinations. Owing to its simplicity the test can serve as a significant complementary assay for PRRS control and elimination/eradication.
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Affiliation(s)
| | - István Szabó
- 2 National PRRS Eradication Committee, Budapest, Hungary
| | | | - Ádám Bálint
- 3 Department of Virology, National Food Chain Safety Office Veterinary Diagnostic Directorate, Tábornok u. 2, H-1143, Budapest, Hungary
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Shin GE, Park JY, Lee KK, Ko MK, Ku BK, Park CK, Jeoung HY. Genetic diversity of porcine reproductive and respiratory syndrome virus and evaluation of three one-step real-time RT-PCR assays in Korea. BMC Vet Res 2022; 18:327. [PMID: 36042510 PMCID: PMC9429472 DOI: 10.1186/s12917-022-03407-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Accepted: 07/29/2022] [Indexed: 11/23/2022] Open
Abstract
Background Porcine reproductive and respiratory syndrome virus (PRRSV) has caused huge economic losses in the global swine industry. Frequent genetic variations in this virus cause difficulties in controlling and accurately diagnosing PRRSV. Methods In this study, we investigated the genetic characteristics of PRRSV-1 and PRRSV-2 circulating in Korea from January 2018 to September 2021 and evaluated three one-step real-time reverse transcription polymerase chain reaction (RT-PCR) assays. Results A total of 129 lung samples were collected, consisting of 47 samples for PRRSV-1, 62 samples for PRRSV-2, and 20 PRRSV-negative samples. Nucleotide sequence analysis of open reading frames (ORFs) 5, ORF6, and ORF7 genes from PRRSV samples showed that PRRSV-1 belonged to subgroup A (43/47, 91.49%) and subgroup C (4/47, 8.51%), whereas PRRSV-2 was classified as lineage 1 (25/62, 40.32%), Korean lineage (Kor) C (13/62, 20.97%), Kor B (10/62, 16.13%), lineage 5 (9/62, 14.52%), and Kor A (5/62, 8.06%). Amino acid sequence analysis showed that the neutralizing epitope and T cell epitope of PRRSV-1, and the decoy epitope region and hypervariable regions of PRRSV-2 had evolved under positive selection pressure. In particular, the key amino acid substitutions were found at positions 102 and 104 of glycoprotein 5 (GP5) in some PRRSV-2, and at positions 10 and 70 of membrane protein (M) in most PRRSV-2. In addition, one-step real-time RT-PCR assays, comprising two commercial tests and one test recommended by the World Organization for Animal Health (OIE), were evaluated. Conclusion The results revealed that two of the real-time RT-PCR assays had high sensitivities and specificities, whereas the real-time RT-PCR assay of the OIE had low sensitivity due to mismatches between nucleotides of Korean PRRSVs and forward primers. In this study, we genetically characterized recent PRRSV occurrences and evaluated three one-step real-time RT-PCR assays used in Korea. Supplementary Information The online version contains supplementary material available at 10.1186/s12917-022-03407-0.
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Affiliation(s)
- Go-Eun Shin
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea.,College of Veterinary Medicine, Kyungbuk National University, 80, Daehak-ro, Daegu, 41566, Korea
| | - Ji-Young Park
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea
| | - Kyoung-Ki Lee
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea
| | - Mi-Kyeong Ko
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea
| | - Bok-Kyung Ku
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea
| | - Choi-Kyu Park
- College of Veterinary Medicine, Kyungbuk National University, 80, Daehak-ro, Daegu, 41566, Korea.
| | - Hye-Young Jeoung
- Animal Disease Diagnostic Division, Animal and Plant Quarantine Agency, Gimcheon, 39660, Korea.
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Rajkhowa TK, Kiran J, Hauhnar L, Zodinpui D, Paul A, Sagolsem S. Molecular detection and characterization of African swine fever virus from field outbreaks in domestic pigs, Mizoram, India. Transbound Emerg Dis 2021; 69:e1028-e1036. [PMID: 34743424 DOI: 10.1111/tbed.14384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2021] [Revised: 10/28/2021] [Accepted: 11/02/2021] [Indexed: 11/28/2022]
Abstract
African swine fever (ASF) is a devastating haemorrhagic disease of domestic pigs, which can cause mortality up to 100%. Sudden mortality in pigs following an acute course of systemic disease was investigated in Mizoram state of India and confirmed the outbreak as ASF. Affected pigs suffered from severe depression, high fever, bloody diarrhoea, cutaneous haemorrhages and showed haemorrhagic lesions in visceral organs. The outbreak was confirmed by detection of p72, p54 and the central variable region of B602L genes by PCR in representative tissue samples collected from dead pigs. The nucleotide and phylogenetic analyses of p72, p54 and B602L characterized the ASFV as genotype II. Interestingly, the analysis of B602L gene has revealed that the ASFV from Mizoram state of India is more closely linked to the Eurasian ASFV strains isolated prior to 2014 and discriminated the Indian strains in two separate groups indicating that the source of origin for the Mizoram outbreak could be different from that of the other states of India.
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Affiliation(s)
- Tridib Kumar Rajkhowa
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
| | - J Kiran
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
| | - Lalthapui Hauhnar
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
| | - Doris Zodinpui
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
| | - Amitava Paul
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
| | - Sheityabati Sagolsem
- Department of Veterinary Pathology, College of Veterinary Sciences and Animal Husbandry, Central Agricultural University, Selesih, Aizawl, Mizoram, India
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Dénes L, Horváth DG, Duran O, Ratkhjen PH, Kraft C, Acs B, Szász AM, Rümenapf T, Papp M, Ladinig A, Balka G. In Situ Hybridization of PRRSV-1 Combined with Digital Image Analysis in Lung Tissues of Pigs Challenged with PRRSV-1. Vet Sci 2021; 8:235. [PMID: 34679065 PMCID: PMC8540710 DOI: 10.3390/vetsci8100235] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 10/11/2021] [Accepted: 10/12/2021] [Indexed: 11/16/2022] Open
Abstract
Betaarterivirus suid 1 and 2 are the causative agents of porcine reproductive and respiratory syndrome (PRRS), which is one of the most significant diseases of the swine industry, causing significant economic losses in the main pig producing countries. Here, we report the development of a novel, RNA-based in situ hybridization technique (RNAscope) to detect PRRS virus (PRRSV) RNA in lung tissues of experimentally infected animals. The technique was applied to lung tissues of 20 piglets, which had been inoculated with a wild-type, highly pathogenic PRRSV-1 strain. To determine the RNAscope's applicability as a semi-quantitative method, we analysed the association between the proportion of the virus-infected cells measured with an image analysis software (QuPath) and the outcome of the real-time quantitative reverse transcription polymerase chain reaction (qRT-PCR) tests performed in parallel. The results of the quantitative approach of these two molecular biological methods show significant association (pseudo R2 = 0.3894, p = 0.004). This is the first time RNAscope assay has been implemented for the detection of PRRSV-1 in experimental animals.
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Affiliation(s)
- Lilla Dénes
- Department of Pathology, University of Veterinary Medicine, István u. 2, 1078 Budapest, Hungary; (L.D.); (D.G.H.)
| | - Dávid G. Horváth
- Department of Pathology, University of Veterinary Medicine, István u. 2, 1078 Budapest, Hungary; (L.D.); (D.G.H.)
| | - Oliver Duran
- Boehringer Ingelheim Vetmedica GmbH, 55218 Ingelheim am Rhein, Germany; (O.D.); (P.H.R.); (C.K.)
| | - Poul H. Ratkhjen
- Boehringer Ingelheim Vetmedica GmbH, 55218 Ingelheim am Rhein, Germany; (O.D.); (P.H.R.); (C.K.)
| | - Christian Kraft
- Boehringer Ingelheim Vetmedica GmbH, 55218 Ingelheim am Rhein, Germany; (O.D.); (P.H.R.); (C.K.)
| | - Balazs Acs
- Department of Oncology and Pathology, Karolinska Institutet, CCK R8:04, 17176 Stockholm, Sweden;
- Clinical Pathology and Cancer Diagnostics, Karolinska University Hospital, Building 70, Level-2, 11883 Stockholm, Sweden
| | - Attila M. Szász
- Department of Internal Medicine and Oncology, Semmelweis University, Korányi Sándor u. 2/a, 1083 Budapest, Hungary;
| | - Till Rümenapf
- Institute of Virology, Department of Pathobiology, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria;
| | - Marton Papp
- Centre for Bioinformatics, University of Veterinary Medicine, István u. 2, 1078 Budapest, Hungary;
| | - Andrea Ladinig
- University Clinic for Swine, University of Veterinary Medicine Vienna, Veterinaerplatz 1, 1210 Vienna, Austria;
| | - Gyula Balka
- Department of Pathology, University of Veterinary Medicine, István u. 2, 1078 Budapest, Hungary; (L.D.); (D.G.H.)
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The Performance of Seven Molecular Methods for the Detection of PRRSV. ACTA VET-BEOGRAD 2020. [DOI: 10.2478/acve-2020-0003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Abstract
Porcine Reproductive and Respiratory Syndrome is a viral disease of swine characterized by reproductive failure of breeding animals and respiratory disorders in all categories. The first PRRS case in Serbia was recorded in 2001 after illegal import of boar semen. PRRS is economically the most important disease due to significant direct and indirect losses. Today, for routine diagnosis of PRRS in infected herds serological methods (ELISA) and molecular methods are used. Although modern diagnostic techniques are very robust, exceptional diversity of the viral strains is often the obstacle for an accurate diagnosis. To estimate the performance of seven different methods for PRRSV genome detection, twenty samples were used. However, none of the methods was able to detect all PRRSV strains. The best sensitivity was obtained by combining two methods. Until today, there is no absolutely accurate test which enables the detection of all circulating strains.
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Genetic diversity of PRRSV 1 in Central Eastern Europe in 1994-2014: origin and evolution of the virus in the region. Sci Rep 2018; 8:7811. [PMID: 29773820 PMCID: PMC5958080 DOI: 10.1038/s41598-018-26036-w] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/01/2018] [Indexed: 12/03/2022] Open
Abstract
More than 20 years after the first outbreaks, the phylogenetic picture of PRRSV is still incomplete and full of gaps, especially in regards of PRRSV 1. Due to the exceptional diversity observed at the eastern borders of Europe and the low number of available sequences from Central Eastern European countries, the authors collected and analyzed both recent as well as already submitted sequences comparing them to a large backbone set of available ORF5 sequences representing the full spectrum of PRRSV 1 Subtype 1 diversity to conduct a systematic phylogenetic analysis and reclassification elucidating the diversity of the virus in these countries. Moreover, further analyses of the EUROSTAT data regarding the live pig movement trends revealed their influence of virus diversity and evolution. The results indicate that besides the effect of local, isolated divergent evolution and the use of modified live vaccines, the most important factor influencing a given country’s virus diversity is the transboundary movement of live, infected animals.
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Complete Genome Sequence of Lumpy Skin Disease Virus Isolate SERBIA/Bujanovac/2016, Detected during an Outbreak in the Balkan Area. GENOME ANNOUNCEMENTS 2017; 5:5/35/e00882-17. [PMID: 28860246 PMCID: PMC5578844 DOI: 10.1128/genomea.00882-17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The lumpy skin disease virus (LSDV) isolate SERBIA/Bujanovac/2016 consists of 150,661 nucleotides and has a 99.95% nucleotide identity with the Neethling Warmbaths LW strain isolated in South Africa in 1999. This is the first complete LSDV genome determined in Serbia and also in the Balkan area.
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More S, Bøtner A, Butterworth A, Calistri P, Depner K, Edwards S, Garin-Bastuji B, Good M, Gortázar Schmidt C, Michel V, Miranda MA, Nielsen SS, Raj M, Sihvonen L, Spoolder H, Stegeman JA, Thulke HH, Velarde A, Willeberg P, Winckler C, Baldinelli F, Broglia A, Beltrán Beck B, Kohnle L, Morgado J, Bicout D. Assessment of listing and categorisation of animal diseases within the framework of the Animal Health Law (Regulation (EU) No 2016/429): porcine reproductive and respiratory syndrome (PRRS). EFSA J 2017; 15:e04949. [PMID: 32625601 PMCID: PMC7009866 DOI: 10.2903/j.efsa.2017.4949] [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] [Indexed: 11/18/2022] Open
Abstract
Porcine reproductive and respiratory syndrome (PRRS) has been assessed according to the criteria of the Animal Health Law (AHL), in particular criteria of Article 7 on disease profile and impacts, Article 5 on the eligibility of PRRS to be listed, Article 9 for the categorisation of PRRS according to disease prevention and control rules as in Annex IV and Article 8 on the list of animal species related to PRRS. The assessment has been performed following a methodology composed of information collection and compilation, expert judgement on each criterion at individual and, if no consensus was reached before, also at collective level. The output is composed of the categorical answer, and for the questions where no consensus was reached, the different supporting views are reported. Details on the methodology used for this assessment are explained in a separate opinion. According to the assessment performed, PRRS can be considered eligible to be listed for Union intervention as laid down in Article 5(3) of the AHL. The disease would comply with the criteria as in Sections 4 and 5 of Annex IV of the AHL, for the application of the disease prevention and control rules referred to in points (d) and (e) of Article 9(1). The animal species to be listed for PRRS according to Article 8(3) criteria are domestic pigs and wild boar.
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Rajkhowa TK, Jagan Mohanarao G, Gogoi A, Hauhnar L, Isaac L. Porcine reproductive and respiratory syndrome virus (PRRSV) from the first outbreak of India shows close relationship with the highly pathogenic variant of China. Vet Q 2015; 35:186-93. [PMID: 26107007 DOI: 10.1080/01652176.2015.1066043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Porcine reproductive and respiratory syndrome (PRRS) is an economically important viral disease of pigs worldwide. India has reported the first outbreak of PRRS in the pig population of Mizoram state to the Office International des Epizooties on the 26 June 2013. HYPOTHESIS/OBJECTIVES The aim of the present study was to determine the genotype and origin of porcine reproductive and respiratory syndrome virus (PRRSV) from the first outbreak in the pig population of Mizoram state, India, in 2013. ANIMALS AND METHODS A total of 880 affected pigs from the outbreak were clinically examined, 51 animals were necropsied and tested by reverse transcription polymerase chain reaction (RT-PCR) to detect PRRSV and 148 serum samples were tested to detect PRRSV-specific antibodies. The full open reading frame 5 (ORF5) gene sequences from 12 and ORF7 gene sequences from three clinical cases were sequenced and analysed for genomic characterization, respectively. RESULTS The outbreak was confirmed by the detection of PRRSV-specific antibodies in 109 out of 148 serum samples (74%) and also by RT-PCR in 46 out of 51 necropsy samples (90%). Notably, ORF5 and ORF7 genes of Indian strain shares the same nucleotide positions i.e. 13,698-14,300 and 14,799-15,170, respectively, with the highly pathogenic (HP) strain of China and were grouped together in a phylogenetic tree. CONCLUSIONS AND CLINICAL IMPORTANCE Sequence and phylogenetic analysis of ORF5 and ORF7 confirmed that the Indian strain has a close link with the HP-PRRSV of China. The current study forms an essential step for better understanding of the epidemiology as well as the movement and spread of the disease in India.
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Affiliation(s)
- T K Rajkhowa
- a Department of Veterinary Pathology, College of Veterinary Sciences & A.H. , Central Agricultural University, Selesih , Aizawl , Mizoram , India
| | - G Jagan Mohanarao
- b Department of Veterinary Physiology and Biochemistry, College of Veterinary Sciences & A.H. , Central Agricultural University, Selesih , Aizawl , Mizoram , India
| | - A Gogoi
- a Department of Veterinary Pathology, College of Veterinary Sciences & A.H. , Central Agricultural University, Selesih , Aizawl , Mizoram , India
| | - L Hauhnar
- a Department of Veterinary Pathology, College of Veterinary Sciences & A.H. , Central Agricultural University, Selesih , Aizawl , Mizoram , India
| | - L Isaac
- a Department of Veterinary Pathology, College of Veterinary Sciences & A.H. , Central Agricultural University, Selesih , Aizawl , Mizoram , India
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Kuemmerle-Deschner JB. CAPS--pathogenesis, presentation and treatment of an autoinflammatory disease. Semin Immunopathol 2015; 37:377-85. [PMID: 25963520 DOI: 10.1007/s00281-015-0491-7] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2015] [Accepted: 04/20/2015] [Indexed: 12/22/2022]
Abstract
The cryopyrin-associated periodic syndrome (CAPS) is a severity spectrum of rare diseases. CAPS comprises the three conditions previously described as familial cold autoinflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS), and neonatal-onset multisystem inflammatory disorder (NOMID), also known as chronic infantile neurologic, cutaneous, and articular (CINCA) syndrome. The clinical phenotype of CAPS is characterized by systemic inflammation. General symptoms are fatigue and fever. Local manifestations affect multiple tissues such as skin, joints, muscles, eyes, and the central nervous system. Distinct clinical features are characteristic for each subphenotype. In FCAS, these are cold-induced urticaria and fever, in MWS systemic amyloidosis and hearing loss and in NOMID/CINCA central nervous system inflammation and bone deformities. CAPS is caused by single heterozygous germline or somatic gain of function mutations in the NLRP3 gene encoding the protein cryopyrin. Cryopyrin nucleates an NLRP3 inflammasome, which regulates the activation and cleavage of caspase-1 that cleaves the pro-inflammatory cytokines, IL-1β and IL-18. IL-1β plays the key role in the induction of inflammation in CAPS. This has been confirmed by the application of IL-1 blocking agents, which lead not only to a rapid and sustained reversal of daily symptoms but also to some extent of long-term disease sequelae. To prevent CAPS-induced organ damage, early diagnosis and swift initiation of effective treatment are mandatory.
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Affiliation(s)
- Jasmin B Kuemmerle-Deschner
- Division of Pediatric Rheumatology, Department of Pediatrics, University Children's Hospital Tuebingen, Hoppe-Seyler-Strasse 1, 72076, Tuebingen, Germany,
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Drigo M, Franzo G, Gigli A, Martini M, Mondin A, Gracieux P, Ceglie L. The impact of porcine reproductive and respiratory syndrome virus genetic heterogeneity on molecular assay performances. J Virol Methods 2014; 202:79-86. [DOI: 10.1016/j.jviromet.2014.03.006] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2013] [Revised: 02/07/2014] [Accepted: 03/04/2014] [Indexed: 01/07/2023]
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Drigo M, Franzo G, Belfanti I, Martini M, Mondin A, Ceglie L. Validation and comparison of different end point and real time RT-PCR assays for detection and genotyping of porcine reproductive and respiratory syndrome virus. J Virol Methods 2014; 201:79-85. [DOI: 10.1016/j.jviromet.2014.02.015] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2013] [Revised: 02/19/2014] [Accepted: 02/21/2014] [Indexed: 11/30/2022]
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14
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Phylogenetic comparison of porcine circovirus type 2 (PCV2) and porcine reproductive respiratory syndrome virus (PRRSV) strains detected in domestic pigs until 2008 and in 2012 in Croatia. Ir Vet J 2014; 67:9. [PMID: 24839544 PMCID: PMC4024209 DOI: 10.1186/2046-0481-67-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Accepted: 04/28/2014] [Indexed: 11/27/2022] Open
Abstract
Background Porcine circovirus type 2 (PCV2) and porcine reproductive and respiratory syndrome virus (PRRSV) have been present for the last 2 decades in Croatia, causing large economical losses in the pig production. The clinical features of the infections are mostly manifested by the development of respiratory problems, weight loss and poor growth performance, as well as reproductive failure in pregnant sows. Even though the infections are continuously recognized in some regions in Croatia, the heterogeneity of the detected viral strains from 2012 has not yet been investigated. The objective of this study was to compare virus strains of PCV2 and PRRSV detected until 2008 in Croatia with strains isolated in 2012 to gain a better epidemiological understanding of these two infections. Results PCV2 and PRRSV strains detected in 2012 in fattening pigs from regions where these two diseases have been previously described were compared to strains that have been detected in the same regions within the past two decades. The phylogenetic analysis revealed that the circulating PCV2 and PRRSV strains are distantly related to the previously described Croatian viral strains. However, when compared to known isolates from the GenBank a high genetic identity of PRRSV isolates with isolates from Hungary, Denmark and the Netherlands was found. Conclusion The results of this study reveal that even though PCV2 and PRRSV are constantly present in the investigated regions in Croatia, the viral strains found in 2012 genetically differ from those detected in earlier years. This indicates that new entries into the pig population appeared with regard to both infections, probably as a result of pig trade.
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Kuemmerle-Deschner JB, Dembi Samba S, Tyrrell PN, Koné-Paut I, Marie I, Deschner N, Benseler SM. Challenges in Diagnosing Muckle-Wells Syndrome: Identifying Two Distinct Phenotypes. Arthritis Care Res (Hoboken) 2014; 66:765-72. [DOI: 10.1002/acr.22206] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2012] [Accepted: 10/08/2013] [Indexed: 01/01/2023]
Affiliation(s)
| | | | - Pascal N. Tyrrell
- The Hospital for Sick Children, University of Toronto; Toronto, Ontario Canada
| | | | - Isabelle Marie
- CEREMAI, CHU Bicêtre APHP, University of Paris SUD; Paris France
| | | | - Susanne M. Benseler
- The Hospital for Sick Children, University of Toronto; Toronto, Ontario Canada
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Gerber PF, Giménez-Lirola LG, Halbur PG, Zhou L, Meng XJ, Opriessnig T. Comparison of commercial enzyme-linked immunosorbent assays and fluorescent microbead immunoassays for detection of antibodies against porcine reproductive and respiratory syndrome virus in boars. J Virol Methods 2013; 197:63-6. [PMID: 24361873 DOI: 10.1016/j.jviromet.2013.12.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 10/30/2013] [Accepted: 12/09/2013] [Indexed: 11/19/2022]
Abstract
The objective of this study was to compare the ability of two commercial enzyme-linked immunosorbent assays (ELISAs) and an in-house fluorescent microbead immunoassay (FMIA) to detect IgG antibodies against porcine reproductive and respiratory syndrome virus (PRRSV) types 1 and 2 in serum and oral fluids from boars infected experimentally. Samples from uninfected control pigs and PRRSV-negative field samples were also used. Serum samples were tested by ELISAs (IDEXX Se, HIPRA Se) and an in-house FMIA-Se for detection of PRRSV types 1 and 2. Oral fluids were tested by ELISAs (IDEXX-SO, IDEXX-OF, HIPRA-OF) for detection of PRRSV types 1 and 2. Among the sera, IDEXX-Se and HIPRA-Se had similar sensitivity and specificity (p>0.05); however, IDEXX-Se detected positive animals earlier than HIPRA-Se (p<0.05). FMIA-Se had the highest false-positive rates in known negative field samples (1/205 for IDEXX-Se, 5/205 for HIPRA-Se, and 37/205 for FMIA-Se; p<0.01). Serum and oral fluid samples had similar detection rates and antibody kinetics using the IDEXX tests. There was a higher detection rate in serum than oral fluid using the HIPRA assays. In this study, the nucleocapsid protein utilized as antigen in the FMIAs yielded a low specificity. IDEXX-Se had the earliest detection and similar sensitivity and specificity to the HIPRA-Se.
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Affiliation(s)
- Priscilla F Gerber
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA; Laboratório de Pesquisa em Virologia Animal, Departamento de Medicina Veterinária Preventiva, Universidade Federal de Minas Gerais, Minas Gerais, Brazil
| | - Luis G Giménez-Lirola
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Patrick G Halbur
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA
| | - Lei Zhou
- Department of Biomedical Sciences and Pathobiology, Center for Molecular Medicine and Infectious Diseases, College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Xiang-Jin Meng
- Department of Biomedical Sciences and Pathobiology, Center for Molecular Medicine and Infectious Diseases, College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA, USA
| | - Tanja Opriessnig
- Department of Veterinary Diagnostic and Production Animal Medicine, Iowa State University, Ames, IA, USA; The Roslin Institute and The Royal (Dick) School of Veterinary Studies, University of Edinburgh, Midlothian EH25 9RG, United Kingdom.
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Kuemmerle-Deschner JB, Haug I. Canakinumab in patients with cryopyrin-associated periodic syndrome: an update for clinicians. Ther Adv Musculoskelet Dis 2013; 5:315-29. [PMID: 24294305 DOI: 10.1177/1759720x13502629] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
The cryopyrin-associated periodic syndrome (CAPS) is a very rare disease. It is estimated that there are 1-2 cases for every 1 million people in the US and 1 in every 360,000 in France. However, many patients are diagnosed very late or not at all, meaning the real prevalence is likely to be higher. CAPS encompasses the three entities of familial cold auto-inflammatory syndrome (FCAS), Muckle-Wells syndrome (MWS), and neonatal-onset multisystem inflammatory disease (NOMID)/chronic infantile neurologic, cutaneous and articular (CINCA) syndrome. They have in common a causative mutation in the NLRP3 gene. The altered gene product cryopyrin leads to activation of the inflammasome which in turn is responsible for excessive production of interleukin (IL)-1β. IL-1β causes the inflammatory manifestations in CAPS. These appear as systemic inflammation including fever, headache or fatigue, rash, eye disease, progressive sensorineural hearing loss, musculoskeletal manifestations and central nervous system (CNS) symptoms (NOMID/CINCA only). With the advent of IL-1 Inhibitors, safe and effective therapeutic options became available for this devastating disease. To prevent severe and possible life-threatening disease sequelae, early and correct diagnosis and immediate initiation of therapy are mandatory in most patients. Canakinumab is a fully human monoclonal IgG1 anti-IL-1β antibody. It provides selective and prolonged IL-1β blockade and has demonstrated a rapid (within hours), complete and sustained response in most CAPS patients without any consistent pattern of side effects. Long-term follow-up trials have demonstrated sustained efficacy, safety and tolerability. Canakinumab is approved by the US Food and Drug Administration for FCAS and MWS and by European Medicines Agency for treatment of all three phenotypes of CAPS.
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Affiliation(s)
- Jasmin B Kuemmerle-Deschner
- Division of Pediatric Rheumatology, Department of Pediatrics, University Children's Hospital Tuebingen, Hoppe-Seyler-Strasse 1, 72076 Tuebingen, Germany
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Comparison of commercial real-time reverse transcription-PCR assays for reliable, early, and rapid detection of heterologous strains of porcine reproductive and respiratory syndrome virus in experimentally infected or noninfected boars by use of different sample types. J Clin Microbiol 2012; 51:547-56. [PMID: 23224085 DOI: 10.1128/jcm.02685-12] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The aims of this study were to compare three commercial porcine reproductive and respiratory syndrome virus (PRRSV) real-time reverse transcription-PCR (RT-PCR) assays for detection of genetically diverse PRRSV isolates in serum, semen, blood swabs, and oral fluids collected from experimentally infected boars and to evaluate the effects of sample pooling. Six groups of three boars negative for PRRSV were each inoculated with one of six PRRSV isolates (sharing 55 to 99% nucleotide sequence identity in ORF5). Samples were collected on days -2, 1, 3, 5, 7, 14, and 21 postinoculation (p.i.) and tested by one of three commercially available real-time RT-PCR assays (VetMax from Applied Biosystems, Foster City, CA [abbreviated AB]; VetAlert from Tetracore, Rockville, MD [TC]; and AcuPig from AnDiaTec GmbH, Kornwestheim, Germany [AD]). At day 1 p.i., all assays detected at least one positive sample in each group. The highest detection rates were on days 3 and 5 p.i. Between days 1 and 7 p.i., serum samples had the highest detection rate (90%) with 100% agreement between tests, followed by blood swabs (kappa value of 0.97) and semen (kappa value of 0.80). Oral fluids had the lowest detection rates (AB, 55%; TC, 41%; AD, 46%) and the highest disagreement between kits (kappa value of 0.63). Pools of five samples did not reduce the detection rates if there was one positive sample with a large amount (cycle threshold, <30) of viral RNA in the pool. Serum and blood swab samples had shorter turnaround times for RNA extraction. The AB assay had a 1.6-times-shorter PCR time. In summary, serum and blood swabs had the best performance with highest detection rates and agreement between assays and the shortest turnaround times.
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