PMID- 15592888 OWN - NLM STAT- MEDLINE DCOM- 20050628 LR - 20220228 IS - 0304-8608 (Print) IS - 0304-8608 (Linking) VI - 150 IP - 4 DP - 2005 Apr TI - Presence of HTLV-I Tax protein in cerebrospinal fluid from HAM/TSP patients. PG - 743-53 AB - Infection with human T-cell lymphotropic virus type I (HTLV-I) have been associated with the development of the HTLV-I-associated myelopathy/Tropical Spastic Paraparesis (HAM/TSP). The disease affects the pyramidal tract at the distal segments of spinal cord, generating a spastic paraparesis. We studied the presence of Tax protein in cerebrospinal fluid cells and spinal fluid (CSF) of 35 Chilean patients: 22 HAM/TSP patients (15 HTLV-I-seropositives, and 7 seronegatives), and 13 controls (9 PSP and 4 CJD non-infected patients). Tax antigens were evaluated with monoclonal antibodies reacting with Tax by immunofluorescence and ELISA assays in cerebrospinal fluid cells and CSF, respectively. Proviral was evaluated by PCR of tax gene in cerebrospinal fluid cells. Tax antigen was detected in CSF and lymphocytes of CSF from 4 and 12 HAM/TSP patients, respectively. Lymphocytes of CSF of 8 HAM/TSP (6 seropositives and 2 seronegatives) showed the presence of tax gene. These results show that cells of CSF from HAM/TSP patients are able to express and export Tax protein towards the CSF. This is the first report of the presence of Tax protein in cerebrospinal fluid cells and CSF from HAM/TSP HTLV-I seronegative patients. FAU - Cartier, L AU - Cartier L AD - Department of Neurological Sciences of Medicine Faculty, Hospital del Salvador, University of Chile, Santiago, Chile. FAU - Ramirez, E AU - Ramirez E LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20041210 PL - Austria TA - Arch Virol JT - Archives of virology JID - 7506870 RN - 0 (Antibodies, Monoclonal) RN - 0 (Antigens, Viral) RN - 0 (Gene Products, tax) SB - IM MH - Adult MH - Aged MH - Antibodies, Monoclonal MH - Antigens, Viral/cerebrospinal fluid MH - Chile MH - Creutzfeldt-Jakob Syndrome/cerebrospinal fluid MH - Female MH - Fluorescent Antibody Technique, Indirect MH - Gene Products, tax/*cerebrospinal fluid MH - Humans MH - Male MH - Middle Aged MH - Paraparesis, Tropical Spastic/*cerebrospinal fluid/physiopathology/virology MH - Reference Values EDAT- 2004/12/14 09:00 MHDA- 2005/06/29 09:00 CRDT- 2004/12/14 09:00 PHST- 2004/06/02 00:00 [received] PHST- 2004/10/08 00:00 [accepted] PHST- 2004/12/14 09:00 [pubmed] PHST- 2005/06/29 09:00 [medline] PHST- 2004/12/14 09:00 [entrez] AID - 10.1007/s00705-004-0443-3 [doi] PST - ppublish SO - Arch Virol. 2005 Apr;150(4):743-53. doi: 10.1007/s00705-004-0443-3. Epub 2004 Dec 10.