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M94A0340.TXT
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1994-10-08
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Document 0340
DOCN M94A0340
TI Seroepidemiology, viral isolation, and molecular characterization of
human T cell leukemia/lymphoma virus type I from La Reunion Island,
Indian Ocean.
DT 9412
AU Mahieux R; Gessain A; Truffert A; Vitrac D; Hubert A; Dandelot J;
Montchamp-Moreau C; Cnudde F; Tekaia F; De The G; Unite d'Epidemiologie
des Virus Oncogenes, Institut Pasteur,; Paris, France.
SO AIDS Res Hum Retroviruses. 1994 Jun;10(6):745-52. Unique Identifier :
AIDSLINE GENBANK/228967
AB Data indicate the presence in the Seychelles Islands of a high level of
human T cell leukemia/lymphoma virus type I (HTLV-I) endemicity as well
as the presence of tropical spastic paraparesis/HTLV-I-associated
myelopathy (TSP/HAM). We present here the results of an hospital survey
performed since 1988 in La Reunion Island, located in the Indian Ocean
southeast of the Seychelles archipelago, aimed at evaluating HTLV-I
endemicity, detecting HTLV-I-associated diseases, and characterizing
viral isolates. Seven individuals were found to have HTLV-I-specific
antibodies in their sera. These include 3 of 257 patients from St.
Pierre Hospital, 1 of them exhibiting a typical clinical feature of
TSP/HAM (the first described case in this region), 1 blood donor of
3900, and 3 relatives. A further nine individuals exhibiting only
gag-encoded proteins by Western blot (p19 and/or p24 bands) were found
negative by polymerase chain reaction using LTR, pol, and tax HTLV-I
specific primers. A long-term T cell line, designated Mel.J, exhibiting
T cell activation markers (CD4+, CD25+, HLA-DR+), and producing HTLV-I
antigens and viral particles, was established from one of the
HTLV-I,-seropositive patients. The sequence of a 522-bp fragment
corresponding to the carboxy terminus of gp46 and the majority of gp21
were determined for five HTLV-I-seropositive individuals, including the
TSP/HAM patient. Alignment and phylogenetic comparison of these five
nucleotide sequences with all the 53 other available HTLV-I env
sequences demonstrated that the virus from La Reunion Island belongs to
the group of the HTLV-I cosmopolitan subtype and is not related to the
Melanesian HTLV-I variants.
DE Adult Base Sequence DNA Probes Female Human HTLV Antibodies/BLOOD
HTLV-I/GENETICS/*ISOLATION & PURIF Indian Ocean Islands/EPIDEMIOLOGY
Male Middle Age Molecular Sequence Data Paraparesis, Tropical
Spastic/EPIDEMIOLOGY/*MICROBIOLOGY Polymerase Chain Reaction Racial
Stocks Support, Non-U.S. Gov't JOURNAL ARTICLE
SOURCE: National Library of Medicine. NOTICE: This material may be
protected by Copyright Law (Title 17, U.S.Code).