Abstract:
:A comparative study of the immunohistochemical (Stem cell leukemia/T-cell acute leukemia [SCL/TAL-1] protein expression) and genotypic (deletions in the SCL/tal-1 gene) findings in T-acute lymphoblastic leukemia (T-ALL) is presented. Formalin-fixed tissue from 50 cases of T-ALL were stained with a novel monoclonal antibody, 2TL 242, which recognizes SCL/TAL-1 protein. Twenty-four cases showed nuclear immunolabeling of leukemic cells. Nuclear positivity was not evident in any other type of leukemia or lymphoma tested with the antibody. Genotypic analysis of 25 cases of T-ALL showed a deletion involving the SCL/tal-1 gene in nine cases. These results suggest that protein expression is not dependent on derangement of the SCL/tal-1 gene, because immunohistochemical detection of the protein was noted in the presence and absence of a tal-d1 deletion.
journal_name
Hum Patholjournal_title
Human pathologyauthors
Chetty R,Pulford K,Jones M,Mathieu-Mahul D,Close P,Hussein S,Pallesen G,Ralfkiaer E,Stein H,Gatter Kdoi
10.1016/0046-8177(95)90089-6subject
Has Abstract,Author List Incompletepub_date
1995-09-01 00:00:00pages
994-8issue
9eissn
0046-8177issn
1532-8392pii
0046-8177(95)90089-6journal_volume
26pub_type
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