Passively Acquired Constant Region 5–Specific Antibodies Associated With Improved Survival in Infants Who Acquire Human Immunodeficiency Virus

Author:

Yaffe Zak A123,Sung Kevin4,Bosire Rose5,Farquhar Carey678,Ngacha Dorothy Mbori910,Lohman-Payne Barbara6810,Nduati Ruth10,John-Stewart Grace67811ORCID,Matsen Frederick A412,Overbaugh Julie14

Affiliation:

1. Human Biology Division, Fred Hutchinson Cancer Center , Seattle, Washington , USA

2. Molecular and Cellular Biology Program, University of Washington , Seattle, Washington , USA

3. Medical Scientist Training Program, University of Washington , Seattle, Washington , USA

4. Public Health Sciences Division, Fred Hutchinson Cancer Center , Seattle, Washington , USA

5. Centre for Public Health Research, Kenya Medical Research Institute , Nairobi , Kenya

6. Department of Global Health, University of Washington , Seattle, Washington , USA

7. Department of Epidemiology, University of Washington , Seattle, Washington , USA

8. Department of Medicine, University of Washington , Seattle, Washington , USA

9. HIV Section, United Nations Children's Fund , New York, New York , USA

10. Department of Paediatrics and Child Health, University of Nairobi, Kenyatta National Hospital , Nairobi , Kenya

11. Department of Pediatrics, University of Washington , Seattle, Washington , USA

12. Howard Hughes Medical Institute , Seattle, Washington , USA

Abstract

Abstract Studying vertical human immunodeficiency virus (HIV) transmission enables the impact of passively transferred antibodies on HIV transmission and pathogenesis to be examined. Using phage display of HIV envelope peptides and peptide enzyme-linked immunosorbent assay (ELISA), we found that, in infants who acquired HIV, passive antibody responses to constant region 5 (C5) were associated with improved survival in 2 cohorts. In a combined analysis, C5 peptide ELISA activity was correlated directly with survival and estimated infection time and inversely with set point viral load. These results suggest that preexisting C5-specific antibodies may be correlated with the survival of infants living with HIV, motivating additional research into their protective potential.

Funder

National Institutes of Health

Howard Hughes Medical Institute

Publisher

Oxford University Press (OUP)

Subject

Infectious Diseases,Oncology

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