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Okano A, Mizutani T, Oishi S, Tanaka T, Ohno H, Fujii N. Palladium-catalysed biscyclisation of allenic bromoalkenes through a zipper-mode cascade. Chem Commun (Camb) 2008:3534-6. [DOI: 10.1039/b805845h] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Okamoto M, Inaba T, Yamada N, Uchida R, Fuchida SI, Okano A, Shimazaki C, Taniwaki M. Expression and role of MHC class I-related chain in myeloma cells. Cytotherapy 2006; 8:509-16. [PMID: 17050256 DOI: 10.1080/14653240600957586] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
BACKGROUND The molecular mechanism of natural killer (NK) cell cytotoxicity to myeloma cells remains unclear. We investigated whether MHC class I-related chain (MIC), a ligand of NKG2D that is an activating NK cell receptor, is involved in the cytotoxicity of NK cells toward myeloma cells, and examined the effects of various drugs on the cytotoxicity. METHODS Two human myeloma cell lines and fresh myeloma cells from 10 patients were used. MIC expression was examined by flow cytometry and reverse transcription (RT)-PCR. NK cell cytotoxicity was examined using a 51Cr-release assay. The effects of various drugs, including thalidomide, all-trans retinoic acid, dexamethasone, IFN-alpha and incadronate, on the MIC expression and NK cell cytotoxicity were examined. RESULTS MIC was highly expressed on the human myeloma cell lines U266 and RPMI-8226 and in myeloma cells of one of 10 patients examined. MIC expression on these cells was not changed by various drugs except IFN-alpha, by which MIC expression was down-regulated. Although MIC and HLA class I molecules were similarly expressed at high levels on both cell lines, U266 was sensitive to NK cells whereas RPMI-8226 was not. Furthermore, cytolysis by NK cells was not inhibited by the addition of anti-MIC Ab or decreased expression of MIC caused by IFN-alpha. DISCUSSION MIC plays a role in the cytolysis by NK cells in multiple myeloma.
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Okamoto M, Okano A, Akamatsu S, Ashihara E, Inaba T, Takenaka H, Katoh N, Kishimoto S, Shimazaki C. Rituximab is effective for steroid-refractory sclerodermatous chronic graft-versus-host disease. Leukemia 2005; 20:172-3. [PMID: 16239908 DOI: 10.1038/sj.leu.2403996] [Citation(s) in RCA: 76] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Shimazaki C, Uchida R, Nakano S, Namura K, Fuchida SI, Okano A, Okamoto M, Inaba T. High serum bone-specific alkaline phosphatase level after bortezomib-combined therapy in refractory multiple myeloma: possible role of bortezomib on osteoblast differentiation. Leukemia 2005; 19:1102-3. [PMID: 15830008 DOI: 10.1038/sj.leu.2403758] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Fuchida S, Nakano S, Yamada N, Uchida R, Okano A, Okamoto M, Maruya E, Saji H, Shimazaki C. Successful non-T-cell-depleted HLA-haploidentical stem cell transplantation (SCT) with reduced-intensity conditioning from a second child for late graft failure after the first HLA-haploidentical SCT for MDS/overt leukemia based on feto-maternal microchimerism. Bone Marrow Transplant 2005; 35:1031-2. [PMID: 15806124 DOI: 10.1038/sj.bmt.1704949] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Yonemura I, Motoyama T, Okano A, Yanagidaira Y, Shimizu Y, Hasekura H, Boettcher B. Significance of biometrical methodology in our study of longevity genetics. Hereditas 2004; 119:97-8. [PMID: 8244760 DOI: 10.1111/j.1601-5223.1993.00097.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
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Inamura H, Tomita M, Okano A, Kurosawa M. Serial blood and urine levels of EDN and ECP in eosinophilic colitis. Allergy 2003; 58:959-60. [PMID: 12911434 DOI: 10.1034/j.1398-9995.2003.00135.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Murai R, Fujisaki J, Gotoda T, Rembacken BJ, Nimura S, Shimoda T, Matsumoto T, Chonan A, Okano A, Takakuwa H, Nishio A. Images of early gastric cancer. Endoscopy 2003; 35:598-605. [PMID: 12822096 DOI: 10.1055/s-2003-40215] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
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Shimazaki C, Ochiai N, Uchida R, Fuchida SI, Okano A, Ashihara E, Inaba T, Fujita N, Nakagawa M. Intramuscular edema as a complication of treatment with imatinib. Leukemia 2003; 17:804-5. [PMID: 12682642 DOI: 10.1038/sj.leu.2402868] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ochiai N, Shimazaki C, Fuchida S, Okano A, Sumikuma T, Ashihara E, Inaba T, Fujita N, Maruya E, Nakagawa M. Successful non-T cell-depleted HLA haplo-identical three-loci mismatched hematopoietic stem cell transplantation from mother to son based on the feto-maternal microchimerism in chronic myelogenous leukemia. Bone Marrow Transplant 2002; 30:793-6. [PMID: 12439703 DOI: 10.1038/sj.bmt.1703736] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2002] [Accepted: 05/03/2002] [Indexed: 11/09/2022]
Abstract
A 17-year-old male with chronic myelogenous leukemia in blast crisis received a non-T cell-depleted (TCD) HLA haplo-identical three-loci mismatched hematopoietic stem cell transplant (HSCT) from his mother. Long-term feto-maternal microchimerism was detected by nested polymerase chain reaction with sequence-specific primer typing. The post-transplantation prophylaxis against graft-versus-host disease (GVHD) was tacrolimus with minidose methotrexate. Sustained engraftment was obtained. Acute GVHD (grade 2) developed, but improved rapidly. Bone marrow aspiration on day 120 showed complete remission. Non-TCD HLA haplo-identical HSCT based on feto-maternal microchimerism might be feasible and has important implications in the selection of alternative family donors in HSCT.
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Miyamoto Y, Sakumoto R, Sakabe Y, Miyake M, Okano A, Okuda K. Tumour necrosis factor-alpha receptors are present in the corpus luteum throughout the oestrous cycle and during the early gestation period in pigs. Reprod Domest Anim 2002; 37:105-10. [PMID: 11975749 DOI: 10.1046/j.1439-0531.2002.00324.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
To determine the physiological significance of tumour necrosis factor-alpha (TNFalpha) in the regulation of luteal functions in pig, this study was conducted to identify the presence of functional TNFalpha receptors in porcine corpora lutea (CL) throughout the oestrous cycle and the early gestation. The CL were isolated from pigs on days 4, 6, 8, 12 or 15 of the oestrous cycle (n=3; day 0 = oestrus) and days 15, 20 or 25 of gestation (n=3; day 0 = mating). A Scatchard analysis revealed the presence of a high-affinity binding site for TNFalpha in all samples (dissociation constant; 2.7 +/- 0.51 to 5.8 +/- 0.50 nM). The concentration of TNFalpha receptors was higher on day 15 of the oestrous cycle than on days 4 and 8 of the oestrous cycle (p < 0.05). Furthermore, TNFalpha receptor concentrations in the CL on days 15, 20 and 25 of gestation were significantly lower than on day 15 of the oestrous cycle (p < 0.05). On day 9 of the oestrous cycle, exposure of cultured luteal cells to 0.06-60 nM TNFalpha stimulated prostaglandin (PG) F2alpha and PGE2 secretion in a dose-dependent manner (p < 0.05). These results indicate that functional TNFalpha receptors are present in the porcine CL throughout the oestrous cycle and early gestation, and suggest that TNFalpha plays one or more physiological roles in regulating CL function throughout the oestrous cycle and the early gestation period. In addition, TNFalpha receptor concentration in the CL of the late luteal stage (day 15) of the oestrous cycle was higher than on the respective day in the early pregnant pig, suggesting that TNFalpha plays a role in accomplishing luteolysis in the porcine CL.
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Takahashi M, Nagai T, Okamura N, Takahashi H, Okano A. Promoting effect of beta-mercaptoethanol on in vitro development under oxidative stress and cystine uptake of bovine embryos. Biol Reprod 2002; 66:562-7. [PMID: 11870058 DOI: 10.1095/biolreprod66.3.562] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
Abstract
The effects of beta-mercaptoethanol (beta-ME) on in vitro development under oxidative stress and cystine uptake of bovine embryos were investigated. Bovine 1-cell embryos obtained by in vitro fertilization were cultured in TCM-199 or synthetic oviductal fluid (SOF) in 20% O(2) supplemented with beta-ME. Addition of beta-ME significantly (P < 0.01) promoted embryo development when cultured in both TCM-199 and SOF under high levels of O(2), to almost the same rates when they were cultured in 5% O(2). To investigate whether the growth-promoting effect of beta-ME was related to cystine uptake, which is an important amino acid for intracellular glutathione (GSH) synthesis, 1-cell, 8-cell, morula, and blastocyst stage embryos were incubated in cystine, cysteine-free TCM-199 containing radioisotope-labeled cystine supplemented with or without beta-ME. It was found that cystine uptake was consistently low in each embryo stage incubated without beta-ME. In contrast, addition of beta-ME significantly (P < 0.05 to 0.0001) promoted cystine uptake in each stage of embryo development. This increase of cystine uptake by beta-ME was significantly inhibited by supplementation of buthionine sulfoximine, a specific inhibitor of GSH biosynthesis (P < 0.0001). High-performance liquid chromatography (HPLC) analysis clearly revealed a decrease of cystine in culture medium after supplementation by beta-ME, thereby forming another peak. HPLC analysis also showed the incorporated cystine by supplementation of beta-ME was possibly metabolized for GSH synthesis in the embryos. These results indicate that beta-ME has a protective effect in embryo development against oxidative stress and that the effect of beta-ME is associated with the promotion of cystine uptake of low availability in embryos.
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Okano A, Ohoyama H, Kasai T. Focusing and selecting the linear type HBr–N2O by using a 2 m long electrostatic hexapole field. J Chem Phys 2002. [DOI: 10.1063/1.1429954] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Abstract
Pancreatitis is believed to be one of the uncommon extraintestinal manifestations of ulcerative colitis (UC). A 66-year-old woman who had been treated for UC for eight months was admitted to our hospital because of epigastralgia. Laboratory examinations revealed elevated pancreatic enzymes. Because differentiation of pseudotumorous pancreatitis from pancreatic cancer was difficult by the imaging findings, she underwent a distal pancreatectomy. Histologically, the tumorous lesion was composed of fibrosis with lymphocytic infiltration. We concluded that this case was pseudotumorous pancreatitis as an extraintestinal manifestation of UC.
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Nakase H, Okazaki K, Kawanami C, Uchida K, Ohana M, Uose S, Nishi T, Itoh T, Okano A, Nishio A, Takakuwa H, Chiba T. Therapeutic effects on intestinal Behçet's disease of an intravenous drug delivery system using dexamethasone incorporated in lipid emulsion. J Gastroenterol Hepatol 2001; 16:1306-8. [PMID: 11903753 DOI: 10.1046/j.1440-1746.2001.02510.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/09/2022]
Abstract
Recurrent intestinal ulcer is a frequent problem in the management of Behçet's disease. However, no standard therapy for intestinal Beheçt's disease has been established. We report two patients with intestinal Behçet disease and recurrent ileal ulcers who were treated successfuly with a lipid emulsion of dexamethasone. In one patient, the cecal ulcer did not relapse after the intravenous administration initiation of a lipid emulsion of dexamethasone once a week, despite the discontinuation of prednisolone. In the other patient, the cecal ulcer showed a healing tendency, and oral administration of prednisolone was reduced from 40 to 15 mg/day after intravenous administration of a lipid emulsion of dexamethasone. Both patients experienced no complications associated with the administration of the emulsion. These results suggest that an intravenous drug delivery system using a lipid emulsion of dexamethasone is useful for treatment of intestinal Behçet's disease.
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Okano A, Shimazaki C, Ochiai N, Hatsuse M, Takahashi R, Ashihara E, Inaba T, Fujita N, Noda Y, Nakagawa M. Subcutaneous infection with Mycobacterium fortuitum after allogeneic bone marrow transplantation. Bone Marrow Transplant 2001; 28:709-11. [PMID: 11704796 DOI: 10.1038/sj.bmt.1703211] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2001] [Accepted: 07/17/2001] [Indexed: 11/08/2022]
Abstract
Reports of cases of mycobacterial infections after SCT are rare. We report a 30-year-old female with a cutaneous infection of Mycobacterium fortuitum 30 months after allogeneic bone marrow transplantation for acute lymphoblastic leukemia. The patient was successfully treated with surgical debridement followed by oral minocycline and clarithromycin. Mycobacterial infections should be considered in SCT patients with undiagnosed refractory chronic cutaneous infection, and surgical debridement is useful for the diagnosis and treatment of such infections.
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Inaba T, Shimazaki C, Nakano S, Fuchida S, Ochiai N, Okano A, Hatsuse M, Ashihara E, Fujita N, Nakagawa M. Plasma thrombopoietin levels in Sebastian platelet syndrome. Eur J Haematol 2001; 67:265-6. [PMID: 11860451 DOI: 10.1034/j.1600-0609.2001.00545.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Shimazaki C, Inaba T, Okano A, Hatsuse M, Takahashi R, Hirai H, Sudo Y, Ashihara E, Adachi Y, Murakami S, Saigo K, Tsuda H, Fujita N, Nakagawa M. Clinical characteristics of B-cell lymphoma-associated hemophagocytic syndrome (B-LAHS): comparison of CD5+ with CD5- B-LAHS. Intern Med 2001; 40:878-82. [PMID: 11579948 DOI: 10.2169/internalmedicine.40.878] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE B-cell lymphoma-associated hemophagocytic syndrome (B-LAHS) has been increasingly reported in Asia and is regarded as a variant of intravascular lymphomatosis (IVL). Recently CD5 was reported to be expressed in some cases of diffuse large cell lymphoma and IVL. We therefore examined the expression of CD5 on lymphoma cells in B-LAHS and compared the clinical and laboratory data between CD5+ and CD5- B-LAHS. METHODS The expression of CD5 on lymphoma cells was examined using flow cytometry and immunohistochemical analysis of paraffin sections. The clinical records were reviewed to characterize clinical features. PATIENTS Twelve patients with B-LAHS; ten men and two women, age ranging from 41 to 82 years (median, 63.5 years) were included in this study. RESULTS B-LAHS is characterized by fever and hepatosplenomegaly without lymphadenopathy at the initial presentation. Histological examination showed hemophagocytosis and infiltration of lymphoma cells in the bone marrow, and in some cases intravascular proliferation of lymphoid cells characteristic of IVL. All patients showed increased levels of lactate dehydrogenase, C-reactive protein, ferritin and soluble interleukin-2 receptor. In eight of the twelve patients, lymphoma cells were positive for CD5. But no differences were observed in the clinical or laboratory findings between CD5+ B-LAHS and CD5- B-LAHS. CONCLUSION No clinical differences were observed between CD5+ B-LAHS and CD5- B-LAHS. Further studies are required to elucidate the differences in pathogenesis between these two subgroups of B-LAHS.
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Li W, Okano A, Tian QB, Nakayama K, Furihata T, Nawa H, Suzuki T. Characterization of a novel synGAP isoform, synGAP-beta. J Biol Chem 2001; 276:21417-24. [PMID: 11278737 DOI: 10.1074/jbc.m010744200] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We cloned a cDNA encoding a novel synGAP, synGAP-d (GenBank(TM) accession number ), from a rat brain cDNA library. The clone consisted of 4801 nucleotides with a coding sequence of 3501 nucleotides, encoded a protein consisting of 1166 amino acids with >99% homology with 1092 amino acid overlaps to synGAP, and contained a 13-nucleotide insertion to the previously reported synGAP mRNAs, which suggested that the clone was a splice variant of synGAP. We also found that there are at least seven variants in the 3' portion of the synGAP mRNA and that they encoded five different protein isoforms. The coding sequence of these C-terminal variants were classified into alpha1, alpha2, beta1, beta2, beta3, beta4, and gamma, and synGAP-d was classified as the beta1 form. The previously reported synGAPs (synGAP-a, -b, and -c and p135synGAP) can be classified as the alpha1 isoform. All isoforms were expressed specifically in the brain. Unexpectedly, the beta isoform, which lacks a C-terminal PSD-95-binding motif ((S/T)XV), was more restricted to the postsynaptic density fraction than the motif-containing alpha1 isoform. The beta isoform did not interact with PSD-95 but specifically interacted with a nonphosphorylated alpha subunit of Ca(2+)/calmodulin-dependent protein kinase II through its unique C-terminal tail.
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Sakatani T, Shimazaki C, Hirai H, Okano A, Hatsuse M, Okamoto A, Takahashi R, Ashihara E, Inaba T, Yokota H, Nakahara K, Hirai H, Nakagawa M. Early relapse after high-dose chemotherapy rescued by tumor-free autologous peripheral blood stem cells in acute lymphoblastic leukemia: importance of monitoring for WT1-mRNA quantitatively. Leuk Lymphoma 2001; 42:225-9. [PMID: 11699212 DOI: 10.3109/10428190109097695] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
A 24-year-old woman who suffered from ALL with MLL gene rearrangement received high-dose chemotherapy followed by autologous PBSC transplantation during complete remission (CR). Reverse transcriptase-polymerase chain reaction (RT-PCR) used to detect MLL/LTG4 chimeric mRNA showed no minimal residual disease (MRD) in the graft or bone marrow at the transplantation. However, the leukemia relapsed four months after transplantation. Retrospective analysis of quantitative measurement of Wilms tumor gene (WT-1) mRNA showed an increased level in the bone marrow although it was within the normal range. These observations suggest that careful monitoring of MRD by quantitative measurement of WT-1 mRNA in addition to disease-specific chimeric mRNA is required to predict relapse.
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Nagata K, Kawasaki T, Okamoto A, Okano A, Yoneyama S, Ito K, Katoh S. Effectiveness of an antiplatelet agent for coronary artery ectasia associated with silent myocardial ischemia. JAPANESE HEART JOURNAL 2001; 42:249-54. [PMID: 11384084 DOI: 10.1536/jhj.42.249] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
A 74-year-old Japanese male was referred to our hospital because of an abnormal electrocardiogram. The electrocardiogram revealed tall P waves in leads II, III, and aV(F). Echocardiography disclosed hypokinesis extending from the anteroseptal region to the apex. Iodine-123 15-(p-iodophenyl)-3-(R,S)-methylpentadecanoic acid (123-BMIPP) scintigraphy revealed reduced uptake from the anteroseptal region to the apex. Coronary arteriography demonstrated diffuse dilatation of the right and left coronary arteries without organic stenosis, and left ventriculography showed hypokinesis at the same area. Furthermore, the coronary flow reserve in the left anterior descending artery was decreased. He was treated with an antiplatelet agent. Ten months later, the left ventriculography, 123I-BMIPP scintigraphy findings and coronary flow reserve were normalized. These findings demonstrate that antiplatelet therapy may be useful in the preservation of left ventricular function in patients with coronary artery ectasia.
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Shimura K, Shimazaki C, Okano A, Hatsuse M, Okamoto A, Takahashi R, Hirai H, Sumikuma T, Ashihara E, Inaba T, Fujita N, Yasuda J, Nakagawa M. [Therapy-related myeloid leukemia following platinum-based chemotherapy for ovarian cancer]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2001; 42:99-103. [PMID: 11280924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
A 40-year-old woman, who had suffered from AML (M1) in 1983, developed ovarian cancer (stage IIIc) in December 1996 after long-term remission. She underwent surgical resection of the cancer, 10 courses of standard chemotherapy and tandem PBSCT (total dose: CBDCA 6,750 mg, CDDP 200 mg, CPA 16,000 mg, THP-ADR 450 mg). After receiving the last course of chemotherapy in June 1998, she was referred to our hospital in September 1998 because of pancytopenia. Laboratory findings showed pancytopenia with 34% leukemic cells, which were positive for alpha NBE and negative for POX and CAE. Surface-marker analysis of the leukemic cells showed positivity for CD11c, CD33, CD56, and DR, and chromosome analysis revealed 47, XX, +8. The patient was diagnosed as having AML (M5a), and received induction therapy consisting of IDR and Ara-C, which led to complete remission. As she had not received etoposide, this case was thought to have been therapy-related leukemia due to the platinum agents used for treating the ovarian cancer.
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