title: Detection of minimal residual disease in a patient having acute myelogenous leukemia with t(16;21)(p11;q22) treated by allogeneic bone marrow transplantation.
abstract: A 29-year-old woman having acute myelogeneous leukemia-M1 subtype with the chromosomal abnormality t(16;21)(p11;q22) is presented. Complete blood count at onset showed a hemoglobin level of 7.2 g/dl, a platelet count of 48 x 10(9)/l, and a white blood cell count of 161.2 x 10(9)/l with 99% blasts and 1% lymphocytes. Bone marrow aspiration revealed massive proliferation of blasts that were positive for CD13, CD33, CD34, CD56 and myeloperoxidase, and negative for other T-cell, B-cell and monocytic markers. After achieving complete remission following conventional chemotherapy, she received an HLA-matched bone marrow transplantation (BMT) from her sibling after conditioning with busulfan, etoposide and cyclophosphamide. However, 9 months later, the leukemia relapsed as a painful extramedullary mass in her left femur. In spite of intensive re-induction chemotherapy, she died of progressive disease and sepsis. Although we could not detect the TLS/FUS-ERG fusion transcripts by reverse transcriptase-polymerase chain reaction in pre-BMT remission phase, they were clearly detectable in bone marrow cells obtained 6 months after transplantation with no translocation detected by conventional cytogenetics. We consider that even high-dose chemotherapy with BMT may not be effective in the eradication of this type of leukemia, and that the detection of minimal residual disease possibly contributes to the better planning of the therapeutic strategy.
authors.affiliation: Division of Hematology, Institute of Clinical Medicine, University of Tsukuba, Tsukuba, Ibaraki, 305-8575, Japan.
authors.forename: Y
authors.initials: Y
authors.lastname: Okoshi
authors.forename: S
authors.initials: S
authors.lastname: Shimizu
authors.forename: H
authors.initials: H
authors.lastname: Kojima
authors.forename: N
authors.initials: N
authors.lastname: Obara
authors.forename: H Y
authors.initials: HY
authors.lastname: Mukai
authors.forename: T
authors.initials: T
authors.lastname: Komeno
authors.forename: Y
authors.initials: Y
authors.lastname: Hasegawa
authors.forename: N
authors.initials: N
authors.lastname: Mori
authors.forename: T
authors.initials: T
authors.lastname: Nagasawa
mesh_terms: D000328:Adult; D015703:Antigens, CD / Q000032:analysis; D018952:Antigens, CD34 / Q000032:analysis; D015214:Antigens, Differentiation, Myelomonocytic / Q000032:analysis; D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D001853:Bone Marrow / Q000473:pathology; D016026:Bone Marrow Transplantation; D018826:CD13 Antigens / Q000032:analysis; D019002:CD56 Antigen / Q000032:analysis; D002885:Chromosomes, Human, Pair 16; D002891:Chromosomes, Human, Pair 21; D017809:Fatal Outcome; D005260:Female; D006454:Hemoglobins / Q000032:analysis; D006801:Humans; D007621:Karyotyping; D015470:Leukemia, Myeloid, Acute / Q000235:genetics* / Q000473:pathology / Q000628:therapy; D007958:Leukocyte Count; D018365:Neoplasm, Residual / Q000175:diagnosis* / Q000473:pathology; D009195:Peroxidase / Q000032:analysis; D010976:Platelet Count; D011878:Radiotherapy; D012008:Recurrence; D012074:Remission Induction; D020133:Reverse Transcriptase Polymerase Chain Reaction; D063268:Sialic Acid Binding Ig-like Lectin 3; D014178:Translocation, Genetic; D014184:Transplantation, Homologous; D017211:Treatment Failure
chemical_list: D015703:Antigens, CD; D018952:Antigens, CD34; D015214:Antigens, Differentiation, Myelomonocytic; C571163:CD33 protein, human; D019002:CD56 Antigen; D006454:Hemoglobins; D063268:Sialic Acid Binding Ig-like Lectin 3; D009195:Peroxidase; D018826:CD13 Antigens