PMID- 2979611 OWN - NLM STAT- MEDLINE DCOM- 19920127 LR - 20190919 IS - 0891-6934 (Print) IS - 0891-6934 (Linking) VI - 1 IP - 2 DP - 1988 TI - Immunological studies of HTLV-I associated myelopathy. PG - 125-31 AB - We report the immunological studies of 50 cases with a chronic progressive myelopathy associated with elevated antibodies to human T-cell lymphotropic virus type I (HTLV-I) and adult T-cell leukemia-like cells (HAM). These are as follows: (1) T-cell activation; (2) increase of the OKT4/OKT8 ratio, due mostly to increased inducer/helper T cells and/or decreased suppressor/cytotoxic T cells; (3) decrease of natural killer cell numbers and activity; and (4) increase of immunoglobulins (IgG, IgA). Our results provide evidence that autoimmune events may participate in the pathogenesis of HAM and may be relevant in the hypothesis of common immune mechanisms between HAM and HTLV-I positive tropical spastic paraparesis. FAU - Kitajima, I AU - Kitajima I AD - Third Department of Internal Medicine, Faculty of Medicine, Kagoshima University, Japan. FAU - Osame, M AU - Osame M FAU - Izumo, S AU - Izumo S FAU - Igata, A AU - Igata A LA - eng PT - Comparative Study PT - Journal Article PL - England TA - Autoimmunity JT - Autoimmunity JID - 8900070 RN - 0 (HTLV-I Antibodies) RN - 0 (Immunoglobulins) RN - 9007-36-7 (Complement System Proteins) SB - IM MH - Adult MH - Aged MH - Complement System Proteins/analysis MH - Female MH - HTLV-I Antibodies/*analysis MH - Humans MH - Immunoglobulins/analysis MH - Killer Cells, Natural/immunology MH - Leukemia, T-Cell/immunology MH - Lymphocyte Activation MH - Lymphocyte Subsets/immunology MH - Male MH - Middle Aged MH - Spinal Cord Diseases/*immunology EDAT- 1988/01/01 00:00 MHDA- 1988/01/01 00:01 CRDT- 1988/01/01 00:00 PHST- 1988/01/01 00:00 [pubmed] PHST- 1988/01/01 00:01 [medline] PHST- 1988/01/01 00:00 [entrez] AID - 10.3109/08916938809001925 [doi] PST - ppublish SO - Autoimmunity. 1988;1(2):125-31. doi: 10.3109/08916938809001925.