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Vaccine Detail
SabRV-SIV |
Vaccine Information |
- Vaccine Name: SabRV-SIV
- Target Pathogen: Simian Immunodeficiency Virus
- Target Disease: Simian AIDS
- Vaccine Ontology ID: VO_0004704
- Type: Recombinant vector vaccine
- Status: Research
- Host Species for Licensed Use: Baboon
- env
gene engineering:
- Type: Recombinant vector construction
- Description: To construct pSabRV1, first the EcoRI and XhoI sites upstream of the T7 promoter of pS1 were eliminated to create plasmid pS1XT. Then the 747-bp BstEII fragment of pMoV2.11—containing the duplicated 2Apro cleavage site, the 5-glycine spacer, and the EcoRI, NotI, and XhoI cloning sites—was swapped into pS1XT to create pSabRV1 (Crotty et al., 2001).
- Detailed Gene Information: Click Here.
- env receptor binding subunit
gene engineering:
- Type: Recombinant vector construction
- Description: To construct pSabRV1, first the EcoRI and XhoI sites upstream of the T7 promoter of pS1 were eliminated to create plasmid pS1XT. Then the 747-bp BstEII fragment of pMoV2.11—containing the duplicated 2Apro cleavage site, the 5-glycine spacer, and the EcoRI, NotI, and XhoI cloning sites—was swapped into pS1XT to create pSabRV1 (Crotty et al., 2001).
- Detailed Gene Information: Click Here.
- gag-pol
gene engineering:
- Type: Recombinant vector construction
- Description: To construct pSabRV1, first the EcoRI and XhoI sites upstream of the T7 promoter of pS1 were eliminated to create plasmid pS1XT. Then the 747-bp BstEII fragment of pMoV2.11—containing the duplicated 2Apro cleavage site, the 5-glycine spacer, and the EcoRI, NotI, and XhoI cloning sites—was swapped into pS1XT to create pSabRV1 (Crotty et al., 2001).
- Detailed Gene Information: Click Here.
- Vector:
- Preparation: New poliovirus vectors based on Sabin 1 and 2 vaccine strain viruses were constructed, and these vectors were used to generate a series of new viruses containing SIV gag, pol, env, nef, and tat in overlapping fragments (Crotty et al., 2001).
- Immunization Route: Intramuscular injection (i.m.)
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Host Response |
Macaque Response
- Vaccination Protocol: Seven animals were inoculated intranasally with 1 ml (5 × 10^7 PFU) of SabRV1-SIV on days 1, 3, 14, and 16, for a total of four immunizations. Nineteen weeks after the first series of inoculations, these same seven animals were given boosters of two intranasal inoculations of 1 ml (10^6 PFU/ml) of SabRV2-SIV, one at week 19 and a second at week 21 (Crotty et al., 2001).
- Vaccine Immune Response Type: VO_0003057
- Challenge Protocol: The animals were challenged with 10^5 TCID50 of SIVmac251 intravaginally, using the SIVmac251 (5/98) stock (Crotty et al., 2001).
- Efficacy: Four of the seven vaccinated animals exhibited substantial protection against the vaginal SIV challenge (Crotty et al., 2001).
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References |
Crotty et al., 2001: Crotty S, Miller CJ, Lohman BL, Neagu MR, Compton L, Lu D, Lü FX, Fritts L, Lifson JD, Andino R. Protection against simian immunodeficiency virus vaginal challenge by using Sabin poliovirus vectors. Journal of virology. 2001; 75(16); 7435-7452. [PubMed: 11462016].
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