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Int J Cancer. 1988 Aug 15;42(2):221-4.

DNA blotting analysis of human retroviruses in cerebrospinal fluid of spastic paraparesis patients: the viruses are identical to human T-cell leukemia virus type-1 (HTLV-1).

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Department of Internal Medicine, Kochi Medical School, Japan.


The structure of the integrated provirus in cell lines established from the cerebrospinal fluid (CSF) of patients with human T-cell leukemia virus type-1 (HTLV-1)-associated myelopathy (HAM) was analyzed. The digestion patterns with 3 restriction endonucleases, Sac I, Eco RI and PstI, of the proviruses integrated in T-lymphoid cell lines derived from the CSF of 4 HAM patients were similar to those of HTLV-1 from adult T-cell leukemia (ATL) patients. Integrated proviruses in one of these cell lines derived from the CSF were further analyzed in detail with 2 more restriction enzymes, BamHI and Sma I. The results indicate that the retrovirus found in lymphocytes of the CSF from patients with HAM are very similar, if not identical, to HTLV-1 found in the leukemic lymphocytes of ATL patients.

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