Abstract:
:Stromal cells isolated from lymph nodes of adult T-cell leukemia/lymphoma (ATL) patients were cultured. Such lymph node stromal cells (LNSC) could be maintained for more than one year, whereas LNSC from other lymphoproliferative disorders ceased to proliferate within months. The rate of human T lymphotropic virus type I (HTLV-I) integration in these LNSC was examined by nested polymerase chain reaction (PCR) and estimated to be about 1 genome per 100 cells. These LNSC showed the same combination of cytokine production irrespective of the patient origin, granulocyte-macrophage (GM)-CSF, G-CSF, interleukin (IL)-1 beta, IL-6, interferon (IFN)-gamma and IL-8, being positive but not M-CSF, IL-1 alpha, IFN-alpha, tumor necrosis factor (TNF)-alpha, IL-2, LD78 and the IL-1 receptor antagonist (IL-1ra). The results show that LNSC from ATL patients have pronounced proliferation activity and constitutively secrete various cytokines. They therefore provide useful models for studying the microenvironment of lymph nodes in vitro, and especially the growth mechanism of ATL cells.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Joh T,Yamada Y,Seto M,Nakamura S,Ohmoto Y,Kamihira S,Tomonaga M,Shiku Hdoi
10.3892/ijo.9.4.619subject
Has Abstractpub_date
1996-10-01 00:00:00pages
619-24issue
4eissn
1019-6439issn
1791-2423journal_volume
9pub_type
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journal_title:International journal of oncology
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