Immunologic and clinicopathologic features of common acute lymphoblastic leukemia antigen-positive childhood T-cell leukemia. A Pediatric Oncology Group Study.

Journal Article (Journal Article)

The immunologic and clinicopathologic features of common acute lymphoblastic leukemia antigen (CALLA)-positive and CALLA-negative T-acute lymphoblastic leukemia (ALL) and of CALLA-positive non-T, non-B ALL (common ALL) of childhood were compared. Twenty-seven percent of children with T-ALL had blasts that expressed CALLA. This expression was not associated with a significantly different incidence of expression of sheep erythrocyte-rosette receptors, glucocorticoid receptors, peanut agglutinin receptors, or T-cell antigens. CALLA-positive T-cell blasts were more likely to express a p24 leukemia-associated antigen (CD9, 50% versus 8%) and Ia antigens (39% versus 8%) than were CALLA-negative blasts. Patients with CALLA-positive and CALLA-negative T-ALL had similar clinicopathologic features at diagnosis. In contrast, compared to patients with common ALL, patients with CALLA-positive T-ALL were older, had higher leukocyte counts, and an increased incidence of splenomegaly, lymphadenopathy and mediastinal mass, similar to patients with CALLA-negative T-ALL. Patients with CALLA-positive T-ALL were more likely to achieve a complete remission (95% versus 83%, P = 0.055) and tended to have an increased duration of event-free survival (P = 0.07) than did patients with CALLA-negative T-ALL. The expression of T-cell antigens is more important than the expression of CALLA in defining biologically similar subgroups of childhood ALL. Preliminary evidence suggests that within T-ALL the expression of CALLA may be prognostically important.

Full Text

Duke Authors

Cited Authors

  • Dowell, BL; Borowitz, MJ; Boyett, JM; Pullen, DJ; Crist, WM; Quddus, FF; Russell, EC; Falletta, JM; Metzgar, RS

Published Date

  • June 15, 1987

Published In

Volume / Issue

  • 59 / 12

Start / End Page

  • 2020 - 2026

PubMed ID

  • 2952260

International Standard Serial Number (ISSN)

  • 0008-543X

Digital Object Identifier (DOI)

  • 10.1002/1097-0142(19870615)59:12<2020::aid-cncr2820591209>;2-i


  • eng

Conference Location

  • United States