Expression of CD45 isoforms in chronic B-cell leukaemias

Heddy Zola, Naomi Siderius, Loretta Flego, Rosemary Sparrow, Martin B. Van Der Weyden, Joy Nimmo, Derek N.J. Hart, Sue Houghton, Andrew W. Boyd

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Abstract

CD45 isoform expression was studied in 204 cases of B-cell lymphoproliferative disease, including 162 chronic lymphocytic leukaemia (CLL). In almost half the samples tested, CD45R0 was co-expressed with CD45RA, unlike normal B-cells, which express only CD45RA, except at terminal stages of differentiation. In a small number of cases CD45R0 was the dominant isoform expressed. No correlation could be discerned either with Binet or RAI staging in CLL or with disease type CLL, prolymphocytic leukaemia (PLL) or hairy cell leukaemia (HCL). Comparison of CD45 isoform expression with other markers showed no correlation with apparent maturational status of the cells involved.

Original languageEnglish
Pages (from-to)209-216
Number of pages8
JournalLeukemia Research
Volume17
Issue number3
DOIs
Publication statusPublished - Mar 1993
Externally publishedYes

Keywords

  • B-cell leukaemia
  • CD45
  • CLL
  • leukocyte-common antigen

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