Details

Autor(en) / Beteiligte

• Fridrik, M A
• Wahl, G
• Herbinger, W
• Schützenberger, W
• Gastl, G
• Huber, C
• Krönke, M
• Höpfel, I

Titel

Morphological and immunological changes of hairy cell leukemia during alpha-2-interferon therapy

Ist Teil von

• Blut, 1989-05, Vol.58 (5), p.261-264

Ort / Verlag

Germany

Erscheinungsjahr

1989

Quelle

MEDLINE

Beschreibungen/Notizen

• We describe a patient who presented with the clinical picture of hairy cell leukemia (HCL). Bone marrow and peripheral blood lymphoma cells showed morphological and immunological features of HCL. Under recombinant alpha-2-interferon (alpha-2-IF) therapy the characteristic morphology changed from HCL to prolymphocytic leukemia (PLL). At diagnosis the lymphoma cells expressed CD24 and FMC7 surface antigen, but stained negative for surface immunoglobulins, light chains and anti-CD5. During alpha-2-IF treatment surface antigen expression changed to CD24, CD5 and FMC7. Surface IgD and lambda light chains became strongly positive. Southern Blot analysis of peripheral blood mononuclear cells showed two rearranged immunoglobulin bands at diagnosis but only one upon alpha-2-IF therapy. These data suggest, that this patient suffered from a biclonal lymphoma, HCL and PLL. While undergoing alpha-2-IF treatment the HCL came into remission, whereas the PLL clone proved to be poorly sensitive to alpha-2-IF therapy.