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Expression of TCL-1 as a potential prognostic factor for treatment outcome in B-cell chronic lymphocytic leukemia

  • Rebekah L. Browning
  • , Susan M. Geyer
  • , Amy J. Johnson
  • , Diane F. Jelinek
  • , Renee C. Tschumper
  • , Timothy G. Call
  • , Tait D. Shanafelt
  • , Clive S. Zent
  • , Nancy D. Bone
  • , Gordon W. Dewald
  • , Thomas S. Lin
  • , Nyla A. Heerema
  • , Michael R. Grever
  • , Neil E. Kay
  • , John C. Byrd
  • , David M. Lucas

Research output: Contribution to journalArticlepeer-review

Abstract

TCL-1 expression is variable in CLL, and no study has examined its association with treatment response. We measured TCL-1 protein in CLL cells from 51 patients who then received pentostatin, cyclophosphamide, and rituximab. TCL-1 expression did not correlate with any pre-treatment characteristics. Lower TCL-1 levels were associated with higher probability of attaining flow cytometry-negative status post-treatment (52% versus 17%, p = 0.046). Trends toward improved complete remission rate (49% versus 19%, p = 0.064) and progression-free survival (medians: 33 versus 20 months, p = 0.199) were noted with lower TCL-1 expression. These data suggest TCL-1 expression may help predict treatment outcome in CLL patients following chemoimmunotherapy, and examination in larger studies is warranted.

Original languageEnglish (US)
Pages (from-to)1737-1740
Number of pages4
JournalLeukemia Research
Volume31
Issue number12
DOIs
StatePublished - Dec 2007

Keywords

  • Chemoimmunotherapy
  • Chronic lymphocytic leukemia (CLL)
  • Pentostatin
  • Prognostic factor
  • TCL-1

ASJC Scopus subject areas

  • Hematology
  • Oncology
  • Cancer Research

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