1
|
Sayedahmed EE, Araújo MV, Silva-Pereira TT, Chothe SK, Elkashif A, Alhashimi M, Wang WC, Santos AP, Nair MS, Gontu A, Nissly R, Francisco de Souza Filho A, Tavares MS, Ayupe MC, Salgado CL, Donizetti de Oliveira Candido É, Leal Oliveira DB, Durigon EL, Heinemann MB, Morais da Fonseca D, Jagannath C, Sá Guimarães AM, Kuchipudi SV, Mittal SK. Impact of an autophagy-inducing peptide on immunogenicity and protection efficacy of an adenovirus-vectored SARS-CoV-2 vaccine. Mol Ther Methods Clin Dev 2023; 30:194-207. [PMID: 37502665 PMCID: PMC10299838 DOI: 10.1016/j.omtm.2023.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2023] [Accepted: 06/23/2023] [Indexed: 07/29/2023]
Abstract
Because of continual generation of new variants of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), it is critical to design the next generation of vaccines to combat the threat posed by SARS-CoV-2 variants. We developed human adenovirus (HAd) vector-based vaccines (HAd-Spike/C5 and HAd-Spike) that express the whole Spike (S) protein of SARS-CoV-2 with or without autophagy-inducing peptide C5 (AIP-C5), respectively. Mice or golden Syrian hamsters immunized intranasally (i.n.) with HAd-Spike/C5 induced similar levels of S-specific humoral immune responses and significantly higher levels of S-specific cell-mediated immune (CMI) responses compared with HAd-Spike vaccinated groups. These results indicated that inclusion of AIP-C5 induced enhanced S-specific CMI responses and similar levels of virus-neutralizing titers against SARS-CoV-2 variants. To investigate the protection efficacy, golden Syrian hamsters immunized i.n. either with HAd-Spike/C5 or HAd-Spike were challenged with SARS-CoV-2. The lungs and nasal turbinates were collected 3, 5, 7, and 14 days post challenge. Significant reductions in morbidity, virus titers, and lung histopathological scores were observed in immunized groups compared with the mock- or empty vector-inoculated groups. Overall, slightly better protection was seen in the HAd-Spike/C5 group compared with the HAd-Spike group.
Collapse
Affiliation(s)
- Ekramy E. Sayedahmed
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marcelo Valdemir Araújo
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
- Butantan Institute, São Paulo, Brazil
| | - Taiana Tainá Silva-Pereira
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Shubhada K. Chothe
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ahmed Elkashif
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Marwa Alhashimi
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Wen-Chien Wang
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Andrea P. Santos
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| | - Meera Surendran Nair
- Department of Veterinary and Biomedical Sciences, Huck Institutes of the Life Sciences, Pennsylvania State University, University Park, PA, USA
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Abhinay Gontu
- Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Ruth Nissly
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | | | - Mariana Silva Tavares
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marina Caçador Ayupe
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Caio Loureiro Salgado
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | | | | | - Edison Luiz Durigon
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Marcos Bryan Heinemann
- Department of Preventive Veterinary Medicine and Animal Health, College of Veterinary Medicine, University of São Paulo, São Paulo, Brazil
| | - Denise Morais da Fonseca
- Department of Immunology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Chinnaswamy Jagannath
- Department of Pathology and Genomic Medicine, Center for Infectious Diseases and Translational Medicine, Houston Methodist Research Institute, Houston, TX, USA
- Weill Cornell Medical College, New York, NY, USA
| | - Ana Marcia Sá Guimarães
- Department of Microbiology, Institute of Biomedical Sciences, University of São Paulo, São Paulo, Brazil
| | - Suresh V. Kuchipudi
- Animal Diagnostic Laboratory, Department of Veterinary and Biomedical Sciences, Pennsylvania State University, University Park, PA, USA
| | - Suresh K. Mittal
- Department of Comparative Pathobiology, College of Veterinary Medicine, Purdue University, West Lafayette, IN, USA
- Purdue Institute of Inflammation, Immunology, and Infectious Disease, Purdue University, West Lafayette, IN, USA
- Institute for Cancer Research, Purdue University, West Lafayette, IN, USA
| |
Collapse
|
2
|
Fonseca SA, Cunha AL, Lima FCA, Silva MSCE, Silva KWL, Araújo MV, Moreira MSA, Bento ES, Sabino AR, Rocha TJM, Ferreira RCS, Costa JGD, Santos AF, Santana AEG. Molecular docking studies and evaluation of the antiretroviral activity and cytotoxicity of the species Lafoensia pacari Saint-Hilaire. BRAZ J BIOL 2022; 82:e256261. [PMID: 35894349 DOI: 10.1590/1519-6984.256261] [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: 09/11/2021] [Accepted: 03/29/2022] [Indexed: 11/22/2022] Open
Abstract
Interest in antiviral plant species has grown exponentially and some have been reported to have anti-HIV properties. This research aims to perform the bio-guided phytochemical fractionation by antiretroviral activity of Lafoensia pacari stem barks. This in vitro experimental study involved the preparation of plant material, obtention of ethanolic extract, fractionation, purification, identification and quantification of fractions, acid-base extraction, nuclear magnetic resonance, HIV-1 RT inhibition test and molecular docking studies. From the bio-guided fractionation by the antiretroviral activity there was a higher activity in the acetanolic subfractions, highlighting the acetate subfraction - neutrals with 60.98% of RT inhibition and ellagic acid with 88.61% of RT inhibition and absence of cytotoxicity. The macrophage lineage cytotoxicity assay showed that the chloroform fraction was more toxic than the acetate fraction. The analysis of the J-resolved spectrum in the aromatic region showed a singlet at 7.48 and 6.93 ppm which was identified as ellagic acid and gallic acid, respectively. The 5TIQ enzyme obtained better affinity parameter with the ellagic acid ligand, which was confirmed by the HSQC-1H-13C spectra. Gallic acid was also favorable to form interaction with the 5TIQ enzyme, being confirmed through the HSQC-1H-13C spectrum. From the PreADMET evaluation it was found that ellagic acid is a promising molecule for its RT inhibition activity and pharmacokinetic and toxicity parameters.
Collapse
Affiliation(s)
- S A Fonseca
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - A L Cunha
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - F C A Lima
- Universidade Estadual do Piauí - UESPI, Departamento de Química, Curso de Licenciatura Plena em Química, Laboratório de Quântica Computacional & Planejamento de Fármaco, Teresina, PI, Brasil
| | - M S Cruz E Silva
- Universidade Estadual do Piauí - UESPI, Departamento de Química, Curso de Licenciatura Plena em Química, Laboratório de Quântica Computacional & Planejamento de Fármaco, Teresina, PI, Brasil
| | - K W L Silva
- Centro Universitário Cesmac, Maceió, AL, Brasil
| | - M V Araújo
- Universidade Federal de Alagoas, Instituto de Ciências Biológicas, Maceió, AL, Brasil
| | - M S A Moreira
- Universidade Federal de Alagoas, Instituto de Ciências Biológicas, Maceió, AL, Brasil
| | - E S Bento
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - A R Sabino
- Universidade Federal de Alagoas, Instituto de Química e Biotecnologia, Maceió, AL, Brasil
| | - T J M Rocha
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Ciências da Saúde de Alagoas, Núcleo de Ciências Biológicas, Maceió, AL, Brasil
| | - R C S Ferreira
- Universidade Federal de Alagoas, Laboratório de Farmacologia Antiviral e Celular, Maceió, AL, Brasil
| | - J G da Costa
- Embrapa Tabuleiros Costeiros (UEP-Rio Largo), Rio Largo, AL, Brasil
| | - A F Santos
- Centro Universitário Cesmac, Maceió, AL, Brasil.,Universidade Estadual de Alagoas, Arapiraca, AL, Brasil
| | - A E G Santana
- Universidade Federal de Alagoas, Centro de Ciências Agrárias, Rio Largo, AL, Brasil
| |
Collapse
|
6
|
Abstract
The kala-azar epidemic in the State of Piauí 1980-1986 is analyzed on the basis of the data collected by SUCAM Piauí. The outbreak began in towns of central and northern Piauí in 1980. In contrast what has happened in endemic periods in which the disease occurred in areas of higher altitude and semi-arid climate, the epidemic developed in humid tropical river valleys in rural zones. The epidemic was worst in the towns. The state capital, Teresina, hit in 1981, reached the epidemic peak in 1984 and accounted, for more than 60% of the 1,509 cases in the state. The epidemic was not substantial in those regions sprayed to combat malaria and Chagas' disease. While control in Teresina was attempted through intensive use of insecticides, the outbreak gave way spontaneously in rural areas. Neither the number of cases nor the phlebotomine population of Teresina presented significant seasonal variations but were moderately correlated. There was greater prevalence in children of 5 years of age or less, especially during the peak epidemic years, and much lesser prevalence in adults over 40 years of age. The geographical distribution of the epidemic process and its beginning, concomitant with a prolonged drought with its accompanying migration of people and domestic animals from endemic to epidemic regions, suggests that migration unleashed the epidemic. The fact that the epidemic process spontaneously relinquished its hold in areas where no control was attempted, indicates that the end of the epidemic cannot be attributed solely to measures of control. An analysis of the coefficients of specific incidence within age groups sparks the discussion about the possibility that progressive reduction of susceptibility (determined by the great number of asymptomatic infections as well as by long-lasting immunity) contributed to the extinction of the epidemic.
Collapse
Affiliation(s)
- C H Costa
- Department of Tropical Public Health, Harvard School of Public Health, Boston, MA 02115
| | | | | |
Collapse
|