Isolation of an HTLV-1-like retrovirus from patients with tropical spastic paraparesis
- 1 February 1988
- journal article
- Published by Springer Nature in Nature
- Vol. 331 (6156), 540-543
- https://doi.org/10.1038/331540a0
Abstract
Tropical spastic paraparesis (TSP) is a slowly progressive myelopathy associated with increased serum and cerebrospinal fluid antibodies to the human T-lymphotropic retrovirus type I (HTLV-I) (ref. 1), and has been observed in many regions of the world. A similar condition known as HTLV-I-associated myelopathy occurs in the Kagoshima prefecture of Japan. Recent but controversial reports suggest involvement of virus related to HTLV-I in multiple sclerosis. Magnetic resonance imaging and electrophysiological studies indicate that TSP lesions are like multiple sclerosis in that they are disseminated throughout the nervous system. Complete virus from patients with TSP has proved difficult to isolate using techniques successful in adult T-cell leukaemia cases associated with HTLV-I. Here we report the isolation of an HTLV-I-like virus from T-cell lines derived from the peripheral blood and cerebrospinal fluid of TSP patients. The monoclonal antibody OKT3 was used to generate non-transformed T-cell lines that express HTLV-I antigens. Infectious virus was demonstrated by co-cultivation and complete, replicating virions were visualized ultrastructurally.Keywords
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