PMID- 7692038 OWN - NLM STAT- MEDLINE DCOM- 19931104 LR - 20200220 IS - 0894-9255 (Print) IS - 0894-9255 (Linking) VI - 6 IP - 10 DP - 1993 Oct TI - Mother-to-child transmission of human T-cell lymphotropic virus type I (HTLV-I) in Jamaica: association with antibodies to envelope glycoprotein (gp46) epitopes. PG - 1162-7 AB - To study mother-to-child transmission of HTLV-I in Jamaica, we screened antenatal patients in Kingston, Jamaica, from 1983 to 1985. Of 2,329 women, 81 (3.5%) were HTLV-I seropositive. Two to three years later, 36 seropositive mothers were recontacted, and blood was drawn from them and their children. All sera were tested for HTLV-I antibodies, and mother's sera were additionally tested for HTLV-I whole-virus antibody titer, syncytium-inhibition neutralizing antibody titer, and titers to six synthetic peptides from the HTLV-I envelope glycoprotein gp46. Seventeen of 74 (23%) [95% confidence interval (CI) 15-34%] children were seropositive. HTLV-I transmission was associated with breast-feeding duration > 6 months [relative risk (RR) 3.2; CI 0.4-22.1], maternal age > 30 years (RR 2.8; CI 1.0-7.8), and higher maternal whole-virus antibody titer (RR 3.3; CI 1.3-8.5). After controlling for higher whole-virus antibody titer, transmission remained associated with higher titer of neutralizing antibody and higher titer of antibody to the peptide sp4a1, corresponding to amino acids 196-209 of the gp46 envelope glycoprotein. We conclude that mother-to-child transmission of HTLV-I in Jamaica is associated with longer duration of breast-feeding, older age, and higher HTLV-I antibody titer, in particular to a certain immunogenic portion of the gp46 envelope glycoprotein. FAU - Wiktor, S Z AU - Wiktor SZ AD - Viral Epidemiology Branch, National Cancer Institute, Bethesda, Maryland. FAU - Pate, E J AU - Pate EJ FAU - Murphy, E L AU - Murphy EL FAU - Palker, T J AU - Palker TJ FAU - Champegnie, E AU - Champegnie E FAU - Ramlal, A AU - Ramlal A FAU - Cranston, B AU - Cranston B FAU - Hanchard, B AU - Hanchard B FAU - Blattner, W A AU - Blattner WA LA - eng GR - NCI NO1-CP-31006/CP/NCI NIH HHS/United States GR - NCI RO1-CA40660/CA/NCI NIH HHS/United States PT - Journal Article PT - Research Support, Non-U.S. Gov't PT - Research Support, U.S. Gov't, Non-P.H.S. PT - Research Support, U.S. Gov't, P.H.S. PL - United States TA - J Acquir Immune Defic Syndr (1988) JT - Journal of acquired immune deficiency syndromes JID - 8812597 RN - 0 (Epitopes) RN - 0 (Gene Products, env) RN - 0 (HTLV-I Antibodies) RN - 0 (HTLV-I Antigens) RN - 0 (Retroviridae Proteins, Oncogenic) RN - 0 (gp46 protein, Human T-cell leukemia virus type I) SB - IM MH - Adolescent MH - Breast Feeding MH - Child MH - Child, Preschool MH - Epitopes/immunology MH - Female MH - Gene Products, env/*immunology MH - HTLV-I Antibodies/*blood MH - HTLV-I Antigens/*immunology MH - HTLV-I Infections/epidemiology/immunology/*transmission MH - Humans MH - Infant MH - Infant, Newborn MH - Jamaica/epidemiology MH - Maternal Age MH - Pregnancy MH - Retroviridae Proteins, Oncogenic/*immunology MH - Risk Factors EDAT- 1993/10/01 00:00 MHDA- 1993/10/01 00:01 CRDT- 1993/10/01 00:00 PHST- 1993/10/01 00:00 [pubmed] PHST- 1993/10/01 00:01 [medline] PHST- 1993/10/01 00:00 [entrez] PST - ppublish SO - J Acquir Immune Defic Syndr (1988). 1993 Oct;6(10):1162-7.