Abstract:
:Cell line PER-315 was established from a bone marrow sample of a 5-year-old boy diagnosed with acute lymphoblastic leukemia (ALL) of T cell lineage. PER-315 cells express the surface markers present on immature thymocytes, express cytoplasmic CD3, and their growth is dependent on interleukin-2 (IL-2). Hence, this cell line represents a new type of precursor T-ALL, which is IL-2 dependent. Assessment of the T cell receptor rearrangements confirmed the clonal origin of cell line PER-315, and comparison with the patient's leukemia cells revealed an identical pattern. PER-315 cells show strong cytotoxicity against cell lines K562, Daudi, and Molt-4. They do not express the Tac antigen, but bind IL-2 with a Kd of 650 pM. Since PER-315 cells represent immature thymocytes, this new cell line may provide a model to further investigate the IL-2 receptor structure present at this stage of T cell differentiation.
journal_name
Leukemiajournal_title
Leukemiaauthors
Kees UR,Ford J,Ranford PR,Dawson VMsubject
Has Abstractpub_date
1990-04-01 00:00:00pages
292-6issue
4eissn
0887-6924issn
1476-5551journal_volume
4pub_type
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