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Recombinant human megakaryocyte growth and development factor increases levels of circulating haemopoietic progenitor cells post chemotherapy in patients with acute myeloid leukaemia
Author(s) -
Geissler Klaus,
Kabrna Eva,
Stengg Susanna,
Schwarzinger Ilse,
KNÖbl Paul,
Valent Peter,
Eichinger Sabine,
Barge Alan,
Lechner Klaus
Publication year - 1998
Publication title -
british journal of haematology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.907
H-Index - 186
eISSN - 1365-2141
pISSN - 0007-1048
DOI - 10.1046/j.1365-2141.1998.00789.x
Subject(s) - progenitor cell , megakaryocyte , chemotherapy , haematopoiesis , cd34 , myeloid , medicine , stem cell , immunology , biology , oncology , microbiology and biotechnology
By participating in a randomized safety and efficacy study of pegylated‐recombinant human megakaryocyte growth and development factor (PEG‐rHuMGDF) post induction and consolidation chemotherapy for de novo acute myeloid leukaemia, serial determinations of circulating haemopoietic progenitor cells were performed during 18 chemotherapy courses in eight patients (three receiving placebo; one, 2.5; and four, 5.0 μg/kg/d MGDF, respectively). Whereas failure to achieve complete remission (CR) was generally associated with poor progenitor cell increments following chemotherapy, substantial progenitor cell mobilization consistently occurred during haemopoietic recovery in patients entering, or in CR, with significantly higher peak values in patients receiving 5 μg/kg/d of MGDF as compared to controls. The median increases of progenitor cell numbers by chemotherapy alone and chemotherapy plus 5.0 μg/kg/d MGDF over that in normal individuals with steady‐state haemopoiesis were 10‐ and 45‐fold for CFU‐GM, 3‐ and 17‐fold for BFU‐E, and 2‐ and 18‐fold for CFU‐mix. CFU‐Mk levels were not increased above normal by chemotherapy alone but were 15‐fold enhanced by chemotherapy plus MGDF. Recruitment of CD34 + cells post chemotherapy was also potentiated by MGDF. Our results suggest MGDF as a potent agent to augment progenitor cell mobilization after successful induction or consolidation chemotherapy in patients with AML.