Abstract:
:Surface phenotypes and genotypes of six T cell lines established from four patients with adult T cell leukemia (ATL) were compared with those of fresh ATL cells. The surface antigen densities of CD3 and T cell receptor (TCR) complex examined by OKT3 and WT-31 mAbs on fresh ATL cells were low. But three IL-2-dependent cell lines, SKT-2, SKT-5, and ATL-17-2, established from three patients expressed a high density of CD3-TCR complex on their surfaces. On the contrary, three other cell lines (SKT-1A, SKT-1B, and MMT-2), established from two other patients, expressed a low density of CD3-TCR complex. Genotypic analysis of TCR beta chain (T beta) gene and integration sites of the proviral genome of human T cell lymphotropic virus type 1 demonstrated that SKT-1A, SKT-1B, and MMT-2 were derived from the original leukemic clones. These apparent associations between a defect of expression of CD3-TCR complex and identical genotypes of fresh and cultured cells suggest that the defect of expression of CD3-TCR complex may play a key role for development of ATL.
journal_name
Leukemiajournal_title
Leukemiaauthors
Shirono K,Hattori T,Matsuoka M,Matsushita S,Asou N,Takatsuki Ksubject
Has Abstractpub_date
1988-11-01 00:00:00pages
728-33issue
11eissn
0887-6924issn
1476-5551journal_volume
2pub_type
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