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Quiroga B, Soler MJ, Ortiz A, Jarava Mantecón CJ, Gomes Pérez VO, Bordils A, Lacueva J, Marin Franco AJ, Delgado Conde P, Muñoz Ramos P, Calderón González C, Cazorla López JM, Sanchez-Rodriguez J, Sánchez Horrillo A, Monzón Vázquez TR, Leyva A, Rojas J, Gansevoort RT, de Sequera P, Rodríguez MTJ, Valverde RL, Carretero MP, Díaz MO, Tocora DG, Suárez ER, Santolaya AJS, Cobo PA, Talavan T, Calero RC, Gracia-Iguacel C, González-Parra E, Pereira M, Martin-Cleary C, Ramos-Verde A, Giorgi M, Sánchez C, Giraldo YG, Horrillo AS, Suárez PR, Perpén AF, Ramos AF, Villanueva LS, Cortiñas A, Arias PAD, Cárdenas AC, de Santos A, Núñez A, Cuadrado GB, de Gante LM, Repollet R, Polo CR, Moreso F, Azancot MA, Ramos N, Toapanta OBN, Cidraque I, Bermejo S, Agraz I, Prat O, Medina C, Pardo E, Prat O, Saiz A, Vila MAM, Guldris SC, Granados NM, Cabo MJC, Alarcón WL, Sánchez SP, Alexandru S, Suarez LGP, Saico SP, Tapia MP, Zamora R, Hernández RS, Osorio LR, García-Fernández N, Moreno PLM, González NA, Ortiz AS, Iñarrea MNB, Cabrera SS, López RO, Peregrí CM, Morales MLA, Cabello MDN, Mazuecos A, García T, Narváez C, Orellana C, Márquez MGS, Novillo CL, Ganga PLQ, Carrión FV, Herrera ALG, Castro NB, Cendrero RMRC, Hidalgo-Barquero MVM, Gallego RH, Alvarez Á, Leo EV, León JLP, García MAM, Jiménez BG, Pérez VOG, de Dios Ramiro Moya J, Espinosa DL, Herrador AJ, Zurita MN, Álvarez LD, Martínez ÁG, Arroyo SB, Fernández RR, Vargas MJS, Casero RC, Useche G, García AB, Díaz ABM, de Miguel CS, Palacios Á, Henningsmeyer B, Calve EO, Moya JL, Sato Y, Marín MS, Tejedor S, Vaquera SM, di Riso MC, Torres I, Alfaro G, Halauko O, Rifai FEL, Martínez AD, Ávila PJ, Sánchez CA, Sainz MS, Martín JMB, del Río García L, Canga JLP, Ochoa PMV, Pacios LM, Machado LL, Morales AQ, Cavalotti IM, Zorita IN, López SO, González SO, Montañez CS, Rubio AB, Del Peso Gilsanz G, Gonzalez MO, Villanueva RS, Oliva MOL, Varela JC, Enríquez AG, Casas CC, Alonso PO, Tabares LG, Barreiro JML, Solla LP, Gándara A, de la Garza WN, Fleming FF, Goyanes MGR, Feijoo CC, Plaza MMM, Juan CB, de la Fuente GDA, del Valle KP, Contreras FJP, Lara NB, Ferri DG, de Bustillo Llorente EM, Rodríguez EG, De La Manzanara Perez VL, Arevalo MC, Calvo JAH, Carratalá MRL, Rodríguez LMM, Salazar MS, Prieto BB, Pérez JMP, Paraíso AG, Huarte E, Lanau M, Campos RA, Ubé JM, Godoy IB, Aguilera ET, Alea RT, Del Rosario Saldaña MS, Salgueira M, Aresté N, de los Ángeles Rodríguez M, Collantes R, Martínez AI, Moyano MJ, Víbora EJ, Gash SC, Martínez LR, Cervera MCA, De Tomas MTR, Prieto BA, Toyos C, Del Rio JM, Acosta AR, Zamacona AC, Martin MIJ, Ortega SB, Ruiz MIG, Rubio AH, Ledesma PG, Alvarez AG, Poch E, Cucchiari D, Monzo JB, Cabrera BE, Hernández APR, Rebollo MSG, Hernández JMR, González AY, Alonso JC, Más AM, Calvé M, Cardona MG, Balaguer VC, Pesquera JIM, de la Rosa EC, Santarelli DR, Garcia AS, Martin-Caro AC, Santamaria IM, Cervienka M, de la Pisa AMU, Monzon LS, Anachuri KA, Garcia EH, Gomez VO, Estupiñán RS, Amado FV, Borges PP, Beloso MD, Alonso FA, Felpete NP, Ameneiro AM, Mera MC, Casares BG, Larrondo SZ, Kareaga NM, del Valle AISS, García ARM, Linaza BV, del Toro Espinosa N, Perico PE, Oliva JMS, Manrique J, Castaño I, Purroi C, Gómez N, Mansilla C, Utzurrum A, de Arellano Serna MR, Perich LG, Rincón MM, De La Manzanara Perez VL, Arevalo MC, Calvo JAH, Villoria JG, De Salinas APM. Humoral response after the fourth dose of the SARS-CoV-2 vaccine in the CKD spectrum: a prespecified analysis of the SENCOVAC study. Nephrol Dial Transplant 2022; 38:969-981. [PMID: 36423334 DOI: 10.1093/ndt/gfac307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Indexed: 11/27/2022] Open
Abstract
Abstract
Background
There is scarce evidence on fourth doses of SARS-CoV-2 vaccines in chronic kidney disease (CKD) patients. We have evaluated the humoral response and effectivity of the fourth dose in the CKD spectrum: non-dialysis CKD (ND-CKD), hemodialysis (HD), peritoneal dialysis (PD) and kidney transplant (KT) recipients.
Methods
This is a prespecified analysis of the prospective, observational, multicentric SENCOVAC study. In patients with CKD who had received a complete initial vaccination and one or two boosters and had anti-Spike antibody determinations 6 and 12 months after the initial vaccination, we analyzed factors associated to persistent negative humoral response and to higher anti-Spike antibody titers as well as the efficacy of vaccination on COVID-19 severity.
Results
Of 2186 patients (18% KT, 8% PD, 69% HD and 5% ND-CKD), 30% had received a fourth dose. The fourth dose increased anti-Spike antibody titers in HD (P = 0.001) and ND-CKD (P = 0.014) patients and seroconverted 72% of previously negative patients. Higher anti-Spike antibody titers at 12 months were independently associated to repeated exposure to antigen (fourth dose, previous breakthrough infections), previous anti-Spike antibody titers and not being a KT. Breakthrough COVID-19 was registered in 137 (6%) patients, of whom 5% required admission. Admitted patients had prior titers below 620 UI/ml and median values were lower (P = 0.020) than in non-admitted patients.
Conclusions
A fourth vaccine dose increased anti-Spike antibody titers or seroconverted many CKD patients, but those with the highest need for a vaccine booster (i.e. those with lower pre-booster antibody titers or KT recipients) derived the least benefit in terms of antibody titers. Admission for breakthrough COVID-19 was associated with low anti-Spike antibody titers.
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Affiliation(s)
- Borja Quiroga
- IIS-La Princesa. Nephrology Department, Hospital Universitario de la Princesa , Madrid ( Spain )
| | - María José Soler
- Nephrology Department, Vall d'Hebrón University Hospital , 08035 Barcelona ( Spain )
- RICORS2040 (Kidney Disease )
| | - Alberto Ortiz
- RICORS2040 (Kidney Disease )
- IIS-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III , Madrid ( Spain )
| | | | | | | | | | | | | | - Patricia Muñoz Ramos
- Nephrology Department, Hospital Universitario Infanta Leonor – Universidad Complutense de Madrid ( Spain )
| | | | | | - Jinny Sanchez-Rodriguez
- IIS-Fundación Jiménez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Álvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III , Madrid ( Spain )
| | - Ana Sánchez Horrillo
- IIS-La Princesa. Nephrology Department, Hospital Universitario de la Princesa , Madrid ( Spain )
| | | | - Alba Leyva
- R&D Department , VIRCELL SL, Granada ( Spain )
| | - José Rojas
- R&D Department , VIRCELL SL, Granada ( Spain )
| | - Ron T Gansevoort
- Dept. Internal Medicine, University Medical Center Groningen, University of Groningen , Groningen , The Netherlands
| | - Patricia de Sequera
- RICORS2040 (Kidney Disease )
- Nephrology Department, Hospital Universitario Infanta Leonor – Universidad Complutense de Madrid ( Spain )
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Quiroga B, Soler MJ, Ortiz A, Bernat A, Díaz ABM, Mantecón CJJ, Pérez VOG, González CC, Cervienka M, Mazuecos A, Cazorla JM, Riso MCD, Martínez S, Diaz MO, Valverde RL, Márquez MGS, Novillo CL, Parra EG, Gracia-Iguacel C, De Tomas MTR, Cervera MCA, Giorgi M, Ramos PM, Carmona NM, Toapanta N, Guldris SC, Millán JCRS, Estupiñán RS, Crespo M, Linaza BV, Martín MIJ, Jiménez LRO, Soriano S, Ferri DG, Sánchez MSP, Yugueros A, Leyva A, Rojas J, Gansevoort RT, de Sequera P, Carretero MP, Tocora DG, Rodríguez MJ, Zanón TT, Suárez ER, Santolaya AJS, Calero RC, Cobo PA, Martin-Cleary C, Sánchez-Rodríguez J, Pereira M, Ramos-Verde A, Sánchez C, Giraldo YG, Horrillo AS, Suárez PR, Perpén AF, Ramos AF, Villanueva LS, Cortiñas A, Arias PAD, Cárdenas AC, de Santos A, Núñez A, Cuadrado GB, Repollet R, Moreso F, Azancot MA, Ramos N, Bestard O, Cidraque I, Bermejo S, Agraz I, Prat O, Medina C, Pardo E, Saiz A, Vila MAM, Granados NM, Cabo MJC, Alarcón WL, Alexandru S, Suarez LGP, Saico SP, Tapia MP, Hernández RS, García-Fernández N, Moreno PLM, González NA, Ortiz AS, Iñarrea MNB, López RO, Peregrí CM, Morales MLA, Cabello MDN, Ribera AMT, Valcarce EG, Vergara EG, García T, Narváez C, Orellana C, Ganga PLQ, Carrión FV, Herrera ALG, Chamoun B, Barbosa F, Faura A, Pachón DR, Castro NB, Cendrero RMRC, Hidalgo-Barquero MVM, Gallego RH, Alvarez Á, Leo EV, León JLP, García MAM, Jiménez BG, Moya JDDR, Espinosa DL, Herrador AJ, Zurita MN, Álvarez LD, Martínez ÁG, Arroyo SB, Fernández RR, Vargas MJS, Casero RC, Useche G, de Miguel CS, Palacios Á, Henningsmeyer B, Calve EO, Moya JL, Sato Y, Marín MS, Torres I, Conde PD, Alfaro G, Halauko O, Rifai FEL, Martínez AD, Ávila PJ, Franco AM, Sainz MS, Martín JMB, García LDR, Canga JLP, Ochoa PMV, Pacios LM, Machado LL, Morales AQ, Cavalotti IM, Zorita IN, López SO, González SO, Montañez CS, Rubio AB, Gilsanz GDP, Gonzalez MO, Villanueva RS, Oliva MOL, Varela JC, Enríquez AG, Casas CC, Alonso PO, Tabares LG, Barreiro JML, Solla LP, Gándara A, de la Garza WN, Fleming FF, Goyanes MGR, Feijoo CC, Plaza MMM, Juan CB, Cecilio RVS, Haces CP, Kislikova M, Rodrigo E, Contreras FJP, Lara NB, Llorente EMDB, Díaz LS, Bustamante AMC, Ruiz JM, Rodríguez EG, Perez VLDLM, Arevalo MC, Calvo JAH, Carratalá MRL, Rodríguez LMM, Salazar MS, Prieto BB, Pérez JMP, Rueda DA, Ferrero MLR, Martínez AV, Estébanez SA, Paraíso AG, Huarte E, Lanau M, Campos RA, Ubé JM, Pérez PS, Godoy IB, Aguilera ET, Alea RT, Saldaña MSDR, Salvetti ML, Valmajor MC, Sánchez MP, Barragán ML, Aunatell LR, Salgueira M, Aresté N, de Los Ángeles Rodríguez M, Collantes R, Martínez AI, Moyano MJ, Víbora EJ, Gash SC, Martínez LR, Prieto BA, Toyos C, Rio JM, Acosta AR, Zamacona AC, Ortega SB, Ruiz MIG, Rubio AH, Ledesma PG, Alvarez AG, de Briñas EPL, Cucchiari D, Monzo JB, Cabrera BE, Hernández APR, Rebollo MSG, Hernández JMR, Alonso JC, Más AM, Calvé M, Cardona MG, Balaguer VC, Pesquera JIM, Serrano AG, Simó PT, Mancilla HDR, Gómez MP, Gumpert JV, de la Fuente GDA, Del Valle KP, de la Rosa EC, Santarelli DR, Garcia AS, Martin-Caro AC, Santamaria IM, Umpierrez AM, Ruiz EH, Corbella AM, Perdomo KT, Martín YM, de la Pisa AMU, Monzon LS, Anachuri KA, Garcia EH, Gomez VO, Amado FV, Borges PP, Vázquez RM, Beloso MD, Alonso FA, Felpete NP, Ameneiro AM, Mera MC, Casares BG, Larrondo SZ, Kareaga NM, Del Valle AISS, García ARM, Del Toro Espinosa N, Perico PE, Oliva JMS, Manrique J, Castaño I, Purroi C, Gómez N, Mansilla C, Utzurrum A. Loss of humoral response 3 months after SARS-CoV-2 vaccination in the CKD spectrum: the multicentric SENCOVAC study. Nephrol Dial Transplant 2022; 37:994-999. [PMID: 35022757 PMCID: PMC9383183 DOI: 10.1093/ndt/gfac007] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2022] [Indexed: 11/30/2022] Open
Affiliation(s)
- Borja Quiroga
- Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | - María José Soler
- Nephrology Department, Vall d'Hebrón University Hospital, Barcelona, Spain.,RICORS2040 (Kidney Disease)
| | - Alberto Ortiz
- RICORS2040 (Kidney Disease).,IIS-Fundación Jimenez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Alvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III, Madrid, Spain
| | | | | | | | | | | | | | | | | | | | | | - Mayra Ortega Diaz
- Nephrology Department, Hospital Universitario Infanta Leonor - Universidad Complutense de Madrid, Spain
| | - Rafael Lucena Valverde
- Nephrology Department, Hospital Universitario Infanta Leonor - Universidad Complutense de Madrid, Spain
| | | | | | - Emilio González Parra
- IIS-Fundación Jimenez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Alvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III, Madrid, Spain
| | - Carolina Gracia-Iguacel
- IIS-Fundación Jimenez Diaz, School of Medicine, Universidad Autónoma de Madrid, Fundación Renal Iñigo Alvarez de Toledo-IRSIN, REDinREN, Instituto de Investigación Carlos III, Madrid, Spain
| | | | | | - Martín Giorgi
- Nephrology Department, Hospital Universitario de la Princesa, Madrid, Spain
| | | | | | - Néstor Toapanta
- Nephrology Department, Vall d'Hebrón University Hospital, Barcelona, Spain
| | | | | | - Raquel Santana Estupiñán
- Nephrology Department, Hospital Universitario de Gran Canaria Doctor Negrín, Las Palmas de Gran Canaria, Spain
| | - Marta Crespo
- Nephrology Department, Hospital del Mar, Barcelona, Spain
| | | | | | | | | | | | | | - Alejandra Yugueros
- Nephrology Department, Hospital Lluis Alcanyis De Xátiva, Valencia, Spain
| | - Alba Leyva
- R&D Department, VIRCELL SL, Granada, Spain
| | - José Rojas
- R&D Department, VIRCELL SL, Granada, Spain
| | - Ron T Gansevoort
- Dept. Internal Medicine, University Medical Center Groningen, University of Groningen, Groningen, the Netherlands
| | - Patricia de Sequera
- RICORS2040 (Kidney Disease).,Nephrology Department, Hospital Universitario Infanta Leonor - Universidad Complutense de Madrid, Spain
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Abstract
The carboxy-terminal region of the rabbit hemorrhagic disease virus p37 polyprotein cleavage product has been expressed in Escherichia coli as a glutathione S-transferase (GST) fusion protein. The recombinant GST-Delta2C protein showed in vitro ATP-binding and ATPase activities. Site-directed mutagenesis studies of the conserved residues G(522) and T(529) in motif A, D(566) and E(567) in motif B, and K(600) in motif C were also performed. These results provide the first experimental characterization of a 2C-like ATPase activity in a member of the Caliciviridae.
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Affiliation(s)
- M S Marín
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Biotecnología de Asturias (CSIC), Universidad de Oviedo, 33006 Oviedo, Spain
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Salazar-Calderón M, Martín-Alonso JM, Ruiz de Eguino AD, Casais R, Marín MS, Parra F. Fasciola hepatica: heterologous expression and functional characterization of a thioredoxin peroxidase. Exp Parasitol 2000; 95:63-70. [PMID: 10864519 DOI: 10.1006/expr.2000.4495] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A Fasciola hepatica cDNA clone of 779 bp was isolated from an adult worm cDNA expression library by immunological screening using a rabbit serum against the excretory-secretory antigens. The nucleotide sequence of the cDNA revealed the presence of an open reading frame of 582 bp which encoded a 194-amino-acid-residue polypeptide (M(r) 21,723 Da) showing a high degree of homology to thioredoxin peroxidases. This putative antioxidant protein gene was expressed in Escherichia coli as a GST fusion protein. The recombinant fusion protein showed in vitro antioxidant properties and protected rabbit muscle enolase and E. coli glutamine synthetase from inactivation by nonenzymatic Fe(3+)/O(2)/DTT or Fe(3+)/O(2)/ascorbate metal-catalyzed oxidation systems.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antioxidants/chemistry
- Antioxidants/isolation & purification
- Antioxidants/metabolism
- Base Sequence
- Blotting, Northern
- Blotting, Southern
- Blotting, Western
- Cattle
- Cloning, Molecular
- DNA, Complementary/chemistry
- DNA, Helminth/chemistry
- Electrophoresis, Polyacrylamide Gel
- Fasciola hepatica/enzymology
- Fasciola hepatica/genetics
- Gene Expression
- Molecular Sequence Data
- Neoplasm Proteins
- Open Reading Frames
- Peroxidases/chemistry
- Peroxidases/genetics
- Peroxidases/metabolism
- Peroxiredoxins
- RNA, Messenger/analysis
- Recombinant Fusion Proteins/chemistry
- Recombinant Fusion Proteins/genetics
- Recombinant Fusion Proteins/metabolism
- Sequence Alignment
- Sequence Analysis, DNA
- Sequence Homology, Amino Acid
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Affiliation(s)
- M Salazar-Calderón
- Departamento de Bioquímica y Biología Molecular, Instituto Universitario de Biotecnología de Asturias (CSIC), Universidad de Oviedo, Oviedo, 33006, Spain
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Castañón S, Marín MS, Martín-Alonso JM, Boga JA, Casais R, Humara JM, Ordás RJ, Parra F. Immunization with potato plants expressing VP60 protein protects against rabbit hemorrhagic disease virus. J Virol 1999; 73:4452-5. [PMID: 10196345 PMCID: PMC104230 DOI: 10.1128/jvi.73.5.4452-4455.1999] [Citation(s) in RCA: 88] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The major structural protein VP60 of rabbit hemorrhagic disease virus (RHDV) has been produced in transgenic potato plants under the control of a cauliflower mosaic virus 35S promoter or a modified 35S promoter that included two copies of a strong transcriptional enhancer. Both types of promoters allowed the production of specific mRNAs and detectable levels of recombinant VP60, which were higher for the constructs carrying the modified 35S promoter. Rabbits immunized with leaf extracts from plants carrying this modified 35S promoter showed high anti-VP60 antibody titers and were fully protected against the hemorrhagic disease.
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Affiliation(s)
- S Castañón
- Departamento de Biología de Organismos y Sistemas, Instituto Universitario de Biotecnología de Asturias (CSIC), Universidad de Oviedo, 33006 Oviedo, Spain
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Marín MS, Martín Alonso JM, Pérez Ordoyo García LI, Boga JA, Argüello-Villares JL, Casais R, Venugopal K, Jiang W, Gould EA, Parra F. Immunogenic properties of rabbit haemorrhagic disease virus structural protein VP60 expressed by a recombinant baculovirus: an efficient vaccine. Virus Res 1995; 39:119-28. [PMID: 8837879 DOI: 10.1016/0168-1702(95)00074-7] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We have constructed a recombinant baculovirus containing the gene encoding the structural protein VP60 from the Spanish field isolate AST/89 of rabbit haemorrhagic disease virus (RHDV). Infection of cultured Spodoptera frugiperda Sf9 cells with this recombinant virus resulted in the production of high yields of VP60 protein which did not seem to assemble to form virus like particles, but was antigenically similar to the corresponding viral protein obtained from purified virions. A VP60-dose study showed that the recombinant protein was able to elicit a protective response in rabbits against a nasal challenge with 100 LD50 of RHDV. The effective dose able to protect 50% of the animals in the absence of adjuvant was found to be 10-25 micrograms of recombinant VP60.
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Affiliation(s)
- M S Marín
- NERC Institute of Virology and Environmental Microbiology, Oxford, UK
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7
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Marín MS, Prieto M, Martín JM, Casais R, Boga JA, Parra F. Identification and expression of a Fasciola hepatica gene encoding a gut antigen protein bearing repetitive sequences. Mol Biochem Parasitol 1992; 55:155-65. [PMID: 1435867 DOI: 10.1016/0166-6851(92)90136-8] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
A Fasciola hepatica cDNA clone of about 2 kb was isolated from an expression library by immunological screening using blood serum from an experimentally infected calf. The cDNA clone hybridised to a RNA of about 3 kb in a Northern blot experiment. The nucleotide sequence of the cDNA revealed the presence of an open reading frame of 1636 bp which encoded 24 tandemly arranged 20-amino acid-long repeats, followed by 65 non-repeated residues preceding the stop codon. This antigen was expressed in Escherichia coli as beta-galactosidase fusion proteins which were used for the production of specific antibodies. Immunofluorescence studies using specific antifusion sera revealed that the antigen was specifically expressed in the parasite intestine epithelial cells. Due to its early appearance it might be possible to design diagnostic assays based on this repeated antigen for identification of recently infected animals.
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MESH Headings
- Amino Acid Sequence
- Animals
- Antibodies, Helminth/blood
- Antibodies, Helminth/immunology
- Antigens, Helminth/analysis
- Antigens, Helminth/genetics
- Antigens, Helminth/immunology
- Base Sequence
- Blotting, Northern
- Blotting, Western
- Cattle
- Cattle Diseases/parasitology
- Cloning, Molecular
- DNA/chemistry
- Fasciola hepatica/genetics
- Fasciola hepatica/immunology
- Fascioliasis/parasitology
- Fascioliasis/veterinary
- Gene Expression Regulation
- Gene Library
- Genes, Helminth
- Immune Sera/immunology
- Molecular Sequence Data
- Repetitive Sequences, Nucleic Acid
- Sequence Analysis, DNA
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Affiliation(s)
- M S Marín
- Departamento de Biología Funcional, Universidad de Oviedo, Spain
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Boga JA, Marín MS, Casais R, Prieto M, Parra F. In vitro translation of a subgenomic mRNA from purified virions of the Spanish field isolate AST/89 of rabbit hemorrhagic disease virus (RHDV). Virus Res 1992; 26:33-40. [PMID: 1441736 PMCID: PMC7133906 DOI: 10.1016/0168-1702(92)90144-x] [Citation(s) in RCA: 26] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Purified preparations of the Spanish field isolate of rabbit hemorrhagic disease virus AST/89 were found to contain the plus-stranded genomic RNA of more than 7.4 kilobases (kb) and large amounts of a subgenomic mRNA of 2.4 kb. The smaller RNA was translated in vitro and shown to code for a 60 kDa protein which was immunoprecipitated using anti-RHDV as well as anti-VP60 sera.
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Affiliation(s)
- J A Boga
- Departamento de Biología Funcional (Area de Bioquímica), Universidad de Oviedo, Spain
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