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Deodato RM, Dos Santos DRL, da Silva MTL, Cruz HM, de Paula VS, Villar LM. Avian anti-HBV immunoglobulin: New tool to improve hepatitis B diagnosis methods. Int J Biol Macromol 2023; 253:126644. [PMID: 37659497 DOI: 10.1016/j.ijbiomac.2023.126644] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2022] [Revised: 08/24/2023] [Accepted: 08/29/2023] [Indexed: 09/04/2023]
Abstract
Immunoglobulin Y (IgY) could be used in serological diagnosis focused on several infectious agents. This study aims to produce IgY anti-hepatitis B virus surface antigen (anti-HBs) and to assess its use in enzyme immunoassays. Antibodies were produced by immunizing chickens with Hepatitis B vaccine associated (group A), or not, with adjuvant CpG-ODN (group B). Eggs were collected for 20 weeks, yolks were purified based on using polyethylene glycol and affinity chromatography. IgY anti-HBs was featured based on SDS-PAGE and Western Blot techniques. Total protein concentration was measured through spectrophotometry. In-house ELISA used to detect HBsAg was developed based on using IgG/HRP conjugate and IgY-anti-HBs sensitized microplates. Thus, IgY anti-HBs were confirmed through molecular pattern based on SDS-PAGE, whereas specificity of anti-HBs was confirmed through Western Blot. Mean total protein reached 3.27 ± 3.00 mg/mL and 3.11 ± 3.12 mg/mL in groups A and B, respectively. In-house ELISA was developed based on using a panel of HBV positive and negative serum samples; it recorded 100 % sensitivity and 78.9 % specificity to detect HBsAg. In conclusion, it was possible producing anti-HBs IgY by immunizing chickens with HBV vaccine; this molecule could be used as capture antibody to help detecting HBsAg in-house ELISA.
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Affiliation(s)
- Raissa Martins Deodato
- Viral Hepatitis Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | | | | | | | - Vanessa Salete de Paula
- Molecular Virology of Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil
| | - Livia Melo Villar
- Viral Hepatitis Laboratory, Oswaldo Cruz Institute, Oswaldo Cruz Foundation, Rio de Janeiro, Brazil.
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Roca TP, Villar LM, Nogueira Lima FS, Vasconcelos MPA, Borzacov LMP, Silva EDCE, do Lago BV, da Silva MTL, Botelho Souza LF, Salcedo JMV, dos Santos ADO, Vieira DS. Genomic Variability of Hepatitis B Virus Circulating in Brazilian Western Amazon. Viruses 2022; 14:v14102100. [PMID: 36298655 PMCID: PMC9611064 DOI: 10.3390/v14102100] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 12/02/2022] Open
Abstract
The emergence of clinically relevant mutations in the hepatitis B virus (HBV) genome has been a matter of great debate because of the possibility of escape from the host’s immune system, the potential to cause more severe progression of liver diseases and the emergence of treatment-resistant variants. Here we characterized the circulating variants of HBV in Rondônia State, in the north of Brazil. Serum samples of 62 chronic HBV carriers were subjected to PCR assays and clinical data were collected. Mutations and genotypes were characterized through direct sequencing. The findings show the presence of subgenotypes A1 (54.83%, 34/62), D3 (16.13%, 10/62), F2 (16.13%, 10/62), A2 (4.84%, 3/62), D2 (3.23%, 2/62), D1 (1.61%, 1/62), D4 (1.61%, 1/62) and F4 (1.61%, 1/62). Deletions in the pre-S2 region were found in 13.79% (8/58) of the samples, mutations in the S gene in 59.68% (37/62) and RT mutations in 48.39% (30/62). We found a variable genotypic distribution in different locations and important mutations related to immune escape and drug resistance in Western Amazonia, which contributed to genetic surveillance and provided important information to help control the disease.
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Affiliation(s)
- Tárcio Peixoto Roca
- Laboratory of Viral Hepatitis, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-900, Brazil
- Laboratory of Molecular Virology, Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho 76812-245, Brazil
- Correspondence: (T.P.R.); (L.M.V.)
| | - Livia Melo Villar
- Laboratory of Viral Hepatitis, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-900, Brazil
- Correspondence: (T.P.R.); (L.M.V.)
| | - Felipe Souza Nogueira Lima
- Laboratory of Molecular Virology, Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho 76812-245, Brazil
| | | | | | | | - Bárbara Vieira do Lago
- Laboratory of Viral Hepatitis, Oswaldo Cruz Institute, FIOCRUZ, Rio de Janeiro 21040-900, Brazil
| | - Mayara Torquato Lima da Silva
- Laboratory of Biotechnology and Structural Bioengineering, Biophysics Institute Carlos Chagas Filho, Federal University of Rio de Janeiro, Rio de Janeiro 21941-901, Brazil
| | | | - Juan Miguel Villalobos Salcedo
- Laboratory of Molecular Virology, Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho 76812-245, Brazil
- Tropical Medicine Research Center of Rondônia—CEPEM/RO, Porto Velho 76812-329, Brazil
| | | | - Deusilene Souza Vieira
- Laboratory of Molecular Virology, Oswaldo Cruz Foundation of Rondônia—FIOCRUZ/RO, Porto Velho 76812-245, Brazil
- Tropical Medicine Research Center of Rondônia—CEPEM/RO, Porto Velho 76812-329, Brazil
- Postgraduate Program in Experimental Biology, Federal University of Rondônia—PGBIOEXP/UNIR, Porto Velho 76801-059, Brazil
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da Silva MTL, Deodato RM, Villar LM. Exploring the potential usefulness of IgY for antiviral therapy: A current review. Int J Biol Macromol 2021; 189:785-791. [PMID: 34416265 DOI: 10.1016/j.ijbiomac.2021.08.078] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 08/08/2021] [Accepted: 08/10/2021] [Indexed: 11/18/2022]
Abstract
Immunoglobulin yolk (IgY) is therapeutic antibodies presented in yolk eggs of birds, reptiles, and amphibians. These proteins produced by the immune system of the animal, are capable of neutralizing antigenic molecules, including viral antigens, fulfilling a role in the body defense. The specificity of these antibodies and the facility for their production, make these molecules capable of being used as tools for diagnosis and immunotherapy. Regarding this last aspect, it is common knowledge that the field of virology, is racing against time in the development of new drugs and vaccines to try to contain pandemics and local epidemics and, in counterproposal, avian antibodies are neutralizing molecules that can help in the control and spread of disease. These molecules have been explored for years and currently chicken eggs are produced in large quantities from the animal's immunization against a specific pathogen. Thus, on this subject, this review made a survey of these researches and presents a summary of all the successful cases and perspectives in the use of IgYs as tools for viral immunization.
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Affiliation(s)
| | - Raissa Martins Deodato
- Viral Hepatitis Laboratory, Oswaldo Cruz Institute, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil
| | - Livia Melo Villar
- Viral Hepatitis Laboratory, Oswaldo Cruz Institute, Fundação Oswaldo Cruz (Fiocruz), Rio de Janeiro, Brazil.
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de Souza Ferreira Bringel PH, Marques GFO, de Queiroz Martins MG, da Silva MTL, Nobre CAS, do Nascimento KS, Cavada BS, Castro RR, Assreuy AMS. The Lectin Isolated from the Alga Hypnea cervicornis Promotes Antinociception in Rats Subjected to Zymosan-Induced Arthritis: Involvement of cGMP Signalization and Cytokine Expression. Inflammation 2021; 43:1446-1454. [PMID: 32212035 DOI: 10.1007/s10753-020-01222-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
This study investigated the effects of the alga lectin Hypnea cervicornis agglutinin (HCA) on rat zymosan-induced arthritis (ZyA). Zymosan (50-500 μg/25 μL) or sterile saline (Sham) was injected into the tibio-tarsal joint of female Wistar rats (180-200 g). Arthritic animals received morphine (4 mg/kg, intraperitoneal), indomethacin (5 mg/kg, intraperitoneal), or 2% lidocaine (100 μL, subcutaneous). HCA (0.3-3 mg/kg) was administered by intravenous route 30 min before or 2 h after zymosan. 1H-[1,2,4]oxadiazolo[4,3-a]-quinoxalin-1-one (ODQ, 4 μg, intra-articular) was given 30 min prior HCA. Hypernociception was measured every hour until 6 h, time in which animals were sacrificed for evaluation of leukocytes of the intra articular fluid and gene expression of TNF-α, IL-1, IL-10, and iNOS in the joint tissues using PCR techniques. Hypernociception was responsive to morphine and indomethacin, and its threshold was not altered by lidocaine. The post-treatment of HCA reduced both hypernociception and leukocyte influx. This antinociceptive effect was abolished either by ODQ and glibenclamide. HCA also reduced gene expression of iNOS and TNF-α. In conclusion, the antinociceptive effect of HCA in ZyA involves cyclic GMP signalization and selective modulation of cytokine expression.
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Affiliation(s)
- Pedro Henrique de Souza Ferreira Bringel
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Av. Dr. Silas Munguba 1700, Fortaleza, CE, 60714-903, Brazil
| | - Gabriela Fernandes Oliveira Marques
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Av. Dr. Silas Munguba 1700, Fortaleza, CE, 60714-903, Brazil
| | - Maria Gleiciane de Queiroz Martins
- Laboratório de Moléculas Biologicamente Ativas (BioMol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n; Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Mayara Torquato Lima da Silva
- Laboratório de Moléculas Biologicamente Ativas (BioMol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n; Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Clareane Avelino Simplício Nobre
- Laboratório de Moléculas Biologicamente Ativas (BioMol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n; Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Kyria Santiago do Nascimento
- Laboratório de Moléculas Biologicamente Ativas (BioMol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n; Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Benildo Sousa Cavada
- Laboratório de Moléculas Biologicamente Ativas (BioMol-Lab), Departamento de Bioquímica e Biologia Molecular, Universidade Federal do Ceará, Campus do Pici, s/n; Bloco 907, Fortaleza, CE, 60455-970, Brazil
| | - Rondinelle Ribeiro Castro
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Av. Dr. Silas Munguba 1700, Fortaleza, CE, 60714-903, Brazil
| | - Ana Maria Sampaio Assreuy
- Laboratório de Fisio-Farmacologia da Inflamação (LAFFIN), Instituto Superior de Ciências Biomédicas, Universidade Estadual do Ceará, Av. Dr. Silas Munguba 1700, Fortaleza, CE, 60714-903, Brazil.
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Lossio CF, da Silva MTL, Barbosa LM, Moreira CG, Rangel Miguel TBA, do Nascimento ASF, da Silva IB, do Nascimento KS, Cavada BS. Isolation, purification and partial physicochemical characterization of a lectin in Andira pisonis Mart seed. BMC Proc 2014. [PMCID: PMC4210723 DOI: 10.1186/1753-6561-8-s4-p226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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