@article{oai:ir.kagoshima-u.ac.jp:00009835, author = {Hasui, Kazuhisa and Sato, Eiichi}, journal = {Dendritic cells}, month = {Jan}, note = {This study aimed to see HTLV-1 infection in 277 cases of malignant lymphoma (ML) in a HTLV-1indemic area by means of ISH employing a highly biotinylated concatamer probe synthesized by a couple of primers SK43 and 44 PCR for HTLV-1 provial DNA pX Tax region. The MLs comprised 115 T-cell MLs, 73 B-cell MLs, 14 Hodgkin's disease (HD) and MLs from the age group less than 20 years old (y.o.). The non-Hodgkin's MLs were categorized according to updated Kiel classification. ISH detected a signal of HTLV-1 proviral DNA including pX Tax region, showing positive stain dominantly in cytoplasm of lymphoma cells and non-neoplastic cells including intermingling small 1ymphocytes, histiocytes and epithelioid cells. ML in which lymphoma cells showed the signal was defined as ""HTLV-1-related ML"". And ML in which any cells revealed the signal was defined as ""HTLV-1-carrier ML"". HTLV-1-related MLs were found in all the subtypes of T-cell MLs (69/115, 60%), indicating its high rate (44/45, 97.8%) in T-cell pleomorphic lymphoma with histological features of adult T-cell leukemia/ lymphoma (ATLL). Even in MLs other than the T-cell MLs, HTLV-1ielated MLs were noted in 21 (29%) of B-cell MLs, 8 (57%) of HD and 4 (16%) of MLs from the age group less than 20 y.o.. HTLV-1-carrier MLs were found in 93 (81%) of T-cell MLs, 35 (49%) of B-cell MLs, 8 (57%) of HD, 13 (52%) of MLs from the age group less than 20 y.o.. HTLV-1-related T-cell MLs in which many lymphoma cells showed the signal may be ATLL, but it was unknown whether there were ATLLs in the ISH-negative cases and in HTLV-1-carrier MLs other than HTLV-1ielated MLs. Considering several technical problems in this ISH, the followings were suggested in this study. HTLV-1 may have oncogenetic effect(s) specific for ATLL and non-specific for MLs other than ATLL but ATLL development would need factor(s) other than HTLV-1 infection. There may be HTLV-1-related B-cell MLs and HD. Some of patients with B-cell MLs and in the under 20-year-old ML patients would fail to produce antibodies against HTLV-1, because higher HTLV-1 carrier rates in these patients were recognized in this study than in the serovirological studies.}, pages = {125--137}, title = {Human T-cell leukemia virus type 1(HTLV1) infection in malignant lymphomas in a HTLV1-endemic area, Kagoshima, Japan : HTLV-1 in-situ-hybridization (ISH) analysis employing a highly biotinylated concatamer probe synthesized by polymerase chain reaction (PCR) for HTLV-1 proviral DNA pX Tax region}, volume = {4}, year = {1994} }