HOMEPRODUCTSCOMPANYCONTACTFAQResearchDictionaryPharmaSign Up FREE or Login

[Disappearance of CD 20 after treatment with rituximab of mantle cell lymphoma].

Abstract
A 60-year-old female visited our hospital in May 2001 because of systemic lymphadenopathy. Her white blood cell count was 25,510/microliters with 93% of lymphocytes. Bone marrow aspiration revealed that 86% of nucleated cells were lymphocytes. Lymphocytes in the peripheral blood and bone marrow were positive for CD 5, 19, 20, and sIgx and negative for CD 23. FISH analysis detected the chimeric bcl 1/IgH fusion gene. Immunohistochemistry of a biopsied lymph node revealed that lymphoma cells were positive for cyclin D 1. Mantle cell lymphoma (MCL) was diagnosed at clinical stage IV A. Although a partial remission was obtained after CHOP plus rituximab therapy, the patient's disease recurred in March 2002 and she died in spite of salvage therapy including rituximab. Immunohistochemistry of the bone marrow cells after salvage rituximab therapy revealed that lymphoma cells were still positive for CD 5 and cyclin D 1, but negative for CD 20 and sIgx. We could not exactly determine how frequently CD 20 expression becomes negative in B-cell lymphomas after treatment with rituximab. We found only two reported cases that suggested rituximab down-regulated CD 20 expression in MCL. We herein describe a case of MCL with very notable clinical features.
AuthorsKatsuhiko Yoshida, Hidekazu Kayano, Tsuneyuki Shimada, Daisuke Wakao, Naoki Takahashi, Yuichi Sugahara, Fumiharu Yagasaki, Yoshihiro Ito, Nobutaka Kawai, Akira Matsuda, Toshiya Suzuki, Masami Bessho
Journal[Rinsho ketsueki] The Japanese journal of clinical hematology (Rinsho Ketsueki) Vol. 44 Issue 3 Pg. 174-81 (Mar 2003) ISSN: 0485-1439 [Print] Japan
PMID12722344 (Publication Type: Comparative Study, English Abstract, Journal Article)
Chemical References
  • Antibodies, Monoclonal
  • Antibodies, Monoclonal, Murine-Derived
  • Antigens, CD20
  • Antineoplastic Agents
  • Cyclin D1
  • Rituximab
  • Vincristine
  • Doxorubicin
  • Cyclophosphamide
  • Prednisolone
Topics
  • Antibodies, Monoclonal (therapeutic use)
  • Antibodies, Monoclonal, Murine-Derived
  • Antigens, CD20 (analysis)
  • Antineoplastic Agents (therapeutic use)
  • Antineoplastic Combined Chemotherapy Protocols (administration & dosage, therapeutic use)
  • Bone Marrow Cells (immunology)
  • Cell Transformation, Neoplastic (drug effects)
  • Cyclin D1 (analysis)
  • Cyclophosphamide (administration & dosage)
  • Doxorubicin (administration & dosage)
  • Drug Administration Schedule
  • Drug Resistance, Neoplasm
  • Female
  • Humans
  • Lymphoma, Mantle-Cell (drug therapy, immunology, pathology)
  • Middle Aged
  • Prednisolone (administration & dosage)
  • Rituximab
  • Vincristine (administration & dosage)

Join CureHunter, for free Research Interface BASIC access!

Take advantage of free CureHunter research engine access to explore the best drug and treatment options for any disease. Find out why thousands of doctors, pharma researchers and patient activists around the world use CureHunter every day.
Realize the full power of the drug-disease research graph!


Choose Username:
Email:
Password:
Verify Password:
Enter Code Shown: