This subproject is one of many research subprojects utilizing the resources provided by a Center grant funded by NIH/NCRR. The subproject and investigator (PI) may have received primary funding from another NIH source, and thus could be represented in other CRISP entries. The institution listed is for the Center, which is not necessarily the institution for the investigator. Lassa virus (LASV), an Old World Arenavirus and the etiological agent of Lassa hemorrhagic fever (LHF), causes up to 300,000 annual infections in West Africa. Approximately 30% of infections result in disease varying from mild influenza-like illness to lethal LHF causing several thousand deaths per year. The large disease burden, severe complications, lethality and the possibility that LASV can be used as a biological warfare agent make a strong case for effective vaccine development. A ML29 Lassa fever vaccine candidate carrying mutated major structural proteins of LASV and RdRp of non-pathogenic Mopeia is attenuated in guinea pigs and rhesus macaques. We have shown that ML29 vaccine protects guinea pigs from lethal infection with homologous and heterologous LASV strains. Here we report the efficacy of the vaccine in nonhuman primates. Six marmosets (Callithrix jacchus) were vaccinated with 1000 PFU of ML29 and challenged on day 30 with lethal dose of LASV-Josiah. A second group of marmosets (n=4), the unvaccinated control group, was infected with the same dose of LASV. Animals were observed for clinical signs of disease and blood was collected for hematology and blood chemistry. Prominent histopathology findings included hepatic necrosis and immunophenotypic alterations of cells in target tissues confirming immunosuppressive phenotype of fatal human LHF.

Agency
National Institute of Health (NIH)
Institute
National Center for Research Resources (NCRR)
Type
Primate Research Center Grants (P51)
Project #
2P51RR013986-11
Application #
7957899
Study Section
Special Emphasis Panel (ZRR1-CM-8 (01))
Project Start
2009-06-06
Project End
2010-04-30
Budget Start
2009-06-06
Budget End
2010-04-30
Support Year
11
Fiscal Year
2009
Total Cost
$294,665
Indirect Cost
Name
Texas Biomedical Research Institute
Department
Type
DUNS #
007936834
City
San Antonio
State
TX
Country
United States
Zip Code
78245
Shelton, Elaine L; Waleh, Nahid; Plosa, Erin J et al. (2018) Effects of antenatal betamethasone on preterm human and mouse ductus arteriosus: comparison with baboon data. Pediatr Res 84:458-465
Perminov, Ekaterina; Mangosing, Sara; Confer, Alexandra et al. (2018) A case report of ovotesticular disorder of sex development (OT-DSD) in a baboon (Papio spp.) and a brief review of the non-human primate literature. J Med Primatol 47:192-197
Jensen, Jeffrey T; Hanna, Carol; Mishler, Emily et al. (2018) Effect of menstrual cycle phase and hormonal treatments on evaluation of tubal patency in baboons. J Med Primatol 47:40-45
Confer, Alexandra; Owston, Michael A; Kumar, Shyamesh et al. (2018) Multiple endocrine neoplasia-like syndrome in 24 baboons (Papio spp.). J Med Primatol 47:434-439
Mustonen, Allison; Gonzalez, Olga; Mendoza, Elda et al. (2018) Uremic encephalopathy in a rhesus macaque (Macaca mulatta): A case report and a brief review of the veterinary literature. J Med Primatol :
Koistinen, Keith; Mullaney, Lisa; Bell, Todd et al. (2018) Coccidioidomycosis in Nonhuman Primates: Pathologic and Clinical Findings. Vet Pathol 55:905-915
Mahaney, Michael C; Karere, Genesio M; Rainwater, David L et al. (2018) Diet-induced early-stage atherosclerosis in baboons: Lipoproteins, atherogenesis, and arterial compliance. J Med Primatol 47:3-17
Mangosing, Sara; Perminov, Ekaterina; Gonzalez, Olga et al. (2018) Uterine Tumors Resembling Ovarian Sex Cord Tumors in Four Baboons ( Papio spp.). Vet Pathol 55:753-758
Joganic, Jessica L; Willmore, Katherine E; Richtsmeier, Joan T et al. (2018) Additive genetic variation in the craniofacial skeleton of baboons (genus Papio) and its relationship to body and cranial size. Am J Phys Anthropol 165:269-285
Kumar, Shyamesh; Laurence, Hannah; Owston, Michael A et al. (2017) Natural pathology of the captive chimpanzee (Pan troglodytes): A 35-year review. J Med Primatol 46:271-290

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