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Ae R, Kojo T, Tsuboi S, Aoyama Y, Kotani K, Takamura H, Tsogzolbaatar EO, Yamada M, Mizusawa H, Nakamura Y. Epidemiologic Features of Human Prion Diseases in Japan: A Prospective 14-year Surveillance. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.231] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Tsuboi S, Kotani K, Aoyama Y, Ae R, Kojo T, Tsogzolbaatar EO, Takamura H, Nakamura Y. A Disease Map of Male Suicide in Japan and its Association with Socioeconomic Factors. Int J Epidemiol 2015. [DOI: 10.1093/ije/dyv096.248] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Nagano H, Yokoyama H, Hashimoto H, Watanabe M, Nakanishi M, Aoyama Y, Kawasaki T, Kishida Y, Katou M, Shimo T, Ishizuka K. EP-1228: Separated arc vs. single arc VMAT therapy for the prostate in the prone position. Radiother Oncol 2015. [DOI: 10.1016/s0167-8140(15)41220-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Miyake T, Yamamoto T, Hirai Y, Otsuka M, Hamada T, Tsuji K, Morizane S, Suzuki D, Aoyama Y, Iwatsuki K. Survival rates and prognostic factors of Epstein-Barr virus-associated hydroa vacciniforme and hypersensitivity to mosquito bites. Br J Dermatol 2014; 172:56-63. [DOI: 10.1111/bjd.13411] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/15/2014] [Indexed: 11/28/2022]
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Aoyama Y, Manabe M, Kumura T, Harada N, Nagasaki J, Ohkita J, Mugitani A. Role of Allogeneic Hematopoietic Stem-Cell Transplantation in Older Patients with Aml or High Risk Mds. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu435.4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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31
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Manabe M, Dozaiku T, Okita J, Nagasaki J, Harada N, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. Diffuse Large B-Cell Lymphoma During Azathioprine Therapy for Autoimmune Hepatitis: a Case Report. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu436.98] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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32
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Kurata M, Mizukawa Y, Aoyama Y, Shiohara T. Herpes simplex virus reactivation as a trigger of mucous lesions in pemphigus vulgaris. Br J Dermatol 2014; 171:554-60. [DOI: 10.1111/bjd.12961] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/06/2014] [Indexed: 12/31/2022]
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Morii K, Nishisaka M, Nakamura S, Oda T, Aoyama Y, Yamamoto T, Kishida H, Okushin H, Uesaka K. A case of synthetic oestrogen-induced autoimmune hepatitis with microvesicular steatosis. J Clin Pharm Ther 2014; 39:573-6. [DOI: 10.1111/jcpt.12191] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2014] [Accepted: 06/16/2014] [Indexed: 12/23/2022]
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Manabe M, Okita J, Takakuwa T, Harada N, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. [Effectiveness of azacitidine in chronic myelomonocytic leukemia harboring del(20q) - a case report]. Gan To Kagaku Ryoho 2014; 41:781-784. [PMID: 25129095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A 7 1-year-old man was admitted to our hospital with leukocytosis and anemia. Chronic myelomonocytic leukemia (CMML)harboring del(20q)was diagnosed by peripheral blood examination and bone marrow aspiration. The patient was subsequently treated with azacitidine, which resulted in rapid disappearance of monocytosis and resolved his dependency on red cell transfusion. With regard to the chromosomal abnormality, although del(20q)is estimated to be encountered in approximately 0.7-1.0% of all CMML cases, its significance in prognosis has not been fully analyzed. Hence, more such cases need to be evaluated to elucidate the therapeutic outcome of CMML involving del(20q). In addition, the Wilms tumor-1(WT 1)level in the patient gradually decreased after the initiation of azacitidine therapy. This phenomenon of WT1 decrease synchronizing with the patient's clinical improvement might reflect therapeutic efficacy with regard to the clinical course, as had been observed in acute myeloid leukemia and myelodysplastic syndrome.
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Matsuoka D, Manabe M, Okita J, Takakuwa T, Harada N, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. [Neutropenic enterocolitis after autologous peripheral blood stem cell transplantation in non-Hodgkin's lymphoma - a case report]. Gan To Kagaku Ryoho 2014; 41:513-515. [PMID: 24743372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Here we report a case of a 59-year-old man who developed neutropenic enterocolitis(NE)after autologous peripheral blood stem cell transplantation for non-Hodgkin's lymphoma in his second complete remission.Four days after transplantation, the patient suffered from diarrhea, abdominal pain, fever, and paralytic ileus.Abdominal computerized tomography scan revealed bowel wall thickening consistent with NE.Owing to his poor performance status, only medical management, including antibiotics and bowel rest, was administered, and the patient died 18 days after transplantation.Although NE after autologous peripheral blood stem cell transplantation is a relatively rare complication, it is important to be aware that this condition can occur as one of the early complications in stem cell transplantation.
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Manabe M, Okita J, Tarakuwa T, Harada N, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. der(5;17)(p10;q10) is a recurrent but rare whole-arm translocation in patients with hematological neoplasms: a report of three cases. Acta Haematol 2014; 132:134-9. [PMID: 24556628 DOI: 10.1159/000357111] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2013] [Accepted: 10/29/2013] [Indexed: 01/22/2023]
Abstract
We report the cases of 3 patients with hematological malignancies and complex karyotypes involving der(5; 17) (p10;q10), which results in the loss of 5q and 17p. Although deletions of 5q and 17p are recurrent abnormalities in hematological disease, only about 20 cases harboring der(5; 17) (p10;q10) have been reported. We address the tumorigenesis and morphological characteristics of hematological malignancies involving der(5; 17)(p10;q10), along with a review of the literature.
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MESH Headings
- Aged
- Aged, 80 and over
- Anemia, Refractory, with Excess of Blasts/drug therapy
- Anemia, Refractory, with Excess of Blasts/genetics
- Anemia, Refractory, with Excess of Blasts/pathology
- Aneuploidy
- Antineoplastic Combined Chemotherapy Protocols/therapeutic use
- Bone Marrow Cells/ultrastructure
- Cell Transformation, Neoplastic/genetics
- Chromosome Aberrations
- Chromosome Banding
- Chromosomes, Human, Pair 17/ultrastructure
- Chromosomes, Human, Pair 5/ultrastructure
- Contraindications
- Fatal Outcome
- Female
- Hematologic Neoplasms/genetics
- Hematologic Neoplasms/pathology
- Humans
- Karyotype
- Lenalidomide
- Leukemia, Myelomonocytic, Chronic/genetics
- Leukemia, Myelomonocytic, Chronic/pathology
- Lymphoma, T-Cell, Peripheral/drug therapy
- Male
- Megakaryocytes/ultrastructure
- Myelodysplastic Syndromes/genetics
- Myelodysplastic Syndromes/pathology
- Neoplasms, Second Primary/genetics
- Neoplasms, Second Primary/pathology
- Recurrence
- Remission Induction
- Thalidomide/analogs & derivatives
- Translocation, Genetic
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Nagano H, Yokoyama H, Hashimoto H, Watanabe M, Nakanishi M, Aoyama Y, Kishida Y, Onishi T. EP-1556: Separated partial arc VMAT compared with single full or angled partial arc VMAT for the prostate carcinoma. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)31674-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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38
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Hatanaka S, Ichihara H, Aoyama Y, Koh S, Yamamura R, Kumura T, Kosaka S, Inaba A, Ohta K, Mugitani A. [Usefulness of measuring serum procalcitonin levels by immunochromatographic assay in febrile neutropenia]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2014; 55:105-109. [PMID: 24492027] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In order to clarify the usefulness of measuring procalcitonin (PCT) values under the extreme condition called febrile neutropenia (FN), PCT was measured with immunochromatographic assay (ICA) and electro-chemi-luminescence immunoassay (ECLIA) at two time points: upon FN occurrence and 12 to 24 hours after FN occurrence, and correlations and associations between the two methods were reviewed. A strong correlation between the ICA and ECLIA results was observed when Spearman's rank correlation coefficient was 0.878, and the association was also demonstrated by Fisher's direct test since P=4.68×10(-10). Special equipment is not required, the operations are simple, and the ICA method currently adopted by many facilities can be used as the standard method even for the clinical condition known as FN.
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Manabe M, Nishii T, Okita J, Nagasaki J, Harada N, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Takeuchi K, Mugitani A. Chronic myelogenous leukemia after postoperative adjuvant S-1 therapy for rectal cancer: a case report. AMERICAN JOURNAL OF BLOOD RESEARCH 2013; 3:286-289. [PMID: 24396706 PMCID: PMC3875274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/28/2013] [Accepted: 12/12/2013] [Indexed: 06/03/2023]
Abstract
We report a case in which chronic myelogenous leukemia (CML) developed after postoperative adjuvant S-1 therapy for rectal cancer. A 56-year-old man was diagnosed with rectal adenocarcinoma, which was treated with abdominoperineal resection followed by a year of adjuvant S-1 therapy. At 39 postoperative months, he was diagnosed with CML. Although it remains unclear that CML that develops after treatment involving cytotoxic agents is treatment-related, clinicians should be aware of the possibility of CML developing after S-1 therapy.
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Manabe M, Okita J, Harada N, Takakuwa T, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. Reciprocal T(7;11)(P15;P15): A Rare but Recurrent Translocation in Acute Myeloid Leukemia. Report of 3 Cases. Ann Oncol 2013. [DOI: 10.1093/annonc/mdt459.94] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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41
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Ono S, Tanioka M, Tanizaki H, Fujisawa A, Koga H, Hashimoto T, Kamiya K, Aoyama Y, Iwatsuki K, Miyachi Y. Concurrence of autoantibodies to bullous pemphigoid antigens and desmoglein 3: analysis of pathogenic and nonpathogenic antibodies. Br J Dermatol 2013; 168:1357-60. [PMID: 23738642 DOI: 10.1111/bjd.12143] [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: 11/28/2022]
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42
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Manabe M, Takeda O, Okita J, Takakuwa T, Harada N, Nakano H, Okamoto S, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Mugitani A. A rare der(Y)t(Y;1)(q12;q12) in a patient with post-polycythemic myelofibrosis: a case report. AMERICAN JOURNAL OF BLOOD RESEARCH 2013; 3:186-190. [PMID: 23675569 PMCID: PMC3649809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/05/2013] [Accepted: 03/29/2013] [Indexed: 06/02/2023]
Abstract
We describe a case of post-polycythemic myelofibrosis harboring der(Y)t(Y;1)(q12;q12). The patient was a 69-year-old man and was initially diagnosed with polycythemia vera. During the clinical course of his condition, the polycythemia developed into myelofibrosis. Chromosome analysis detected der(Y)t(Y;1)(q12;q12). We discuss the association between der(Y)t(Y;1)(q11~12;q12~21) and tumorigenesis along with a review of literature.
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Manabe M, Takakuwa T, Nakano H, Harada N, Okamoto S, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Matsuda M, Mugitani A. Derivative (5;19)(p10;q10): a rare but recurrent whole-arm translocation in acute myeloid leukemia. Asia Pac J Clin Oncol 2013; 10:e122-6. [PMID: 23279927 DOI: 10.1111/ajco.12051] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/29/2012] [Indexed: 12/14/2022]
Abstract
A previous study of cases of myelodysplastic syndrome harboring der(5;19)(p10;q10) found that they displayed common characteristics including predominance in elderly men, dysplasia involving three hematopoietic lineages and CD7 expression in blasts. However, the whole-arm translocation der(5;19)(p10;q10) has not been fully analyzed because of its rarity. In this study we used flow cytometry to evaluate the immunophenotype of two patients' bone marrow mononuclear cells. Both patients had involved der(5;19)(p10;q10) in their karyotype analyzed by standard G-banding technique. Both patients had the CD7+ and CD41+ phenotype, and the CD41 positivity suggested that the myeloid neoplasms involving der(5;19)(p10;q10) were of megakaryoblastic origin. The der(5;19)(p10;q10) abnormality is associated with unique characteristics of the immunophenotype. We address the clinical, immunophenotypic and morphological aspects of hematological malignancy involving der(5;19)(p10;q10), along with a review of the literature.
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Nakamura S, Asai H, Akita S, Aoyama Y, Kamikubo Y, Sugama Y, Takei H, Nishio T, Maruyama K, Hayakawa K. Development of Fast and High-spatial-resolution 3-dimensional Dosimetry Equipment for Both the Narrow Beam and the Broad Beam in Proton Therapy. Int J Radiat Oncol Biol Phys 2012. [DOI: 10.1016/j.ijrobp.2012.07.351] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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Manabe M, Nishii T, Harada N, Nakano H, Takakuwa T, Okamoto S, Aoyama Y, Kumura T, Mugitani A. Chronic Myelogenous Leukaemia Following S-1 THerapy for Rectal Cancer: A Case report. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)32533-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Nishimura K, Tanaka T, Tsubuku T, Matono S, Nagano T, Murata K, Aoyama Y, Yanagawa T, Shirouzu K, Fujita H. Reflux esophagitis after esophagectomy: impact of duodenogastroesophageal reflux. Dis Esophagus 2012; 25:381-5. [PMID: 21967617 DOI: 10.1111/j.1442-2050.2011.01268.x] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Reflux esophagitis (RE) is a known complication disturbing patients' quality of life after esophageal resection. It is generally recognized that bile reflux as well as acid reflux cause RE. However, the clinical influence of acid and bile reflux, and Helicobacter pylori (H. pylori) infection on RE in the cervical esophagus after esophagectomy is not yet clarified. Sixty patients who underwent cervical esophagogastrostomy following esophagectomy were enrolled in this study. They underwent examination for H. pylori infection, endoscopic examination, and continuous 24-hour pH and bilirubin monitoring, at 1 month after surgery. The influence of acid and/or bile reflux, H. pylori infection, and others on the development of RE were investigated. RE was observed in 19 patients (32%) at 1 month after esophagogastrostomy, mild RE in 16 (27%), and severe RE in 3 (5%). The percentage of time duration of both acid and bile reflux into the cervical esophagus was higher in patients with RE than in those without (P = 0.027, P < 0.001). A significant difference in %time pH < 4 acid reflux was found between mild RE and severe RE (P = 0.014), and a statistical difference in %time abs. > 0.14 between non-RE and mild RE (P = 0.017). Acid and/or bile reflux was observed in 31 patients (52%), acid-only reflux in 6 (10%), bile-only reflux in 15 (25%), and acid-and-bile reflux in 10 (17%). Severe RE was observed only in patients having acid-and-bile reflux. On the univariate analysis, no infection of H. pylori, acid reflux, and bile reflux were determined to be the influencing factors to RE among the clinical factors including age, gender, route of esophageal reconstruction, H. pylori infection, and acid-and-bile reflux. In the subanalysis using the logistic model, there were significant correlations between bile reflux and RE irrespective of the presence of H. pylori infection (P = 0.016, P = 0.007). On the other hand, there was a significant correlation between acid reflux and RE only in patients without H. pylori infection (P = 0.039). In the early period after esophagogastrostomy, bile reflux could cause RE irrespective of H. pylori infection, while acid reflex could cause RE only in patients without H. pylori infection. There is a possibility that bile reflux plays an important role in the development of RE after esophagectomy.
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Kamiya K, Aoyama Y, Shirafuji Y, Hamada T, Morizane S, Fujii K, Hisata K, Iwatsuki K. Detection of antibodies against the non-calcium-dependent epitopes of desmoglein 3 in pemphigus vulgaris and their pathogenic significance. Br J Dermatol 2012; 167:252-61. [PMID: 22404487 DOI: 10.1111/j.1365-2133.2012.10929.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
BACKGROUND Antidesmoglein (anti-Dsg) 3 serum antibody titres are usually correlated with the disease activity of pemphigus vulgaris (PV), but some patients retain high titres even in remission. OBJECTIVES The aim of our study was to determine whether anti-Dsg3 antibodies in PV sera recognized calcium (Ca(2+) )-dependent or non-Ca(2+) -dependent epitopes, and to evaluate their pathogenicity. METHODS Dsg3 baculoprotein-coated enzyme-linked immunosorbent assay (ELISA) plates were treated with 0.5 mmol L(-1) ethylenediaminetetraacetic acid (EDTA). The binding ability of anti-Dsg3 monoclonal antibodies (mAbs) was analysed. Eight of the 83 patients with PV who were screened had elevated Dsg3 ELISA index values > 00 in remission. The binding ability of these PV sera was analysed. We evaluated the pathogenicity of anti-Dsg3 serum antibodies against the non-Ca(2+) -dependent epitopes using a dissociation assay. RESULTS The reactivity of pathogenic anti-Dsg3 mAbs against the Ca(2+) -dependent epitopes diminished markedly in the EDTA-treated ELISA, whereas no such reduction was observed in mAbs against the non-Ca(2+) -dependent epitopes. The sera of all the patients contained antibodies against both Ca(2+) -dependent and non-Ca(2+) -dependent epitopes. In six out of the eight patients, the ratio of antibodies against Ca(2+) -dependent to non-Ca(2+) -dependent epitopes decreased in remission. EDTA-treated Dsg3 baculoproteins adsorbed anti-Dsg3 serum antibodies against the non-Ca(2+) -dependent epitopes, but the remnant PV antibodies retained the ability to induce acantholysis in the dissociation assay. CONCLUSIONS We have established an assay to measure indirectly the titres of anti-Dsg3 serum antibodies against the Ca(2+) -dependent epitopes, based on the differences between EDTA-untreated and EDTA-treated ELISA index values, as a routine laboratory test to reflect the pathogenic anti-Dsg3 serum antibody titres more accurately.
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Koseki T, Mouri A, Mamiya T, Aoyama Y, Toriumi K, Suzuki S, Nakajima A, Yamada T, Nagai T, Nabeshima T. [JSNP Excellent Presentation Award for AsCNP 2011: enriched environment in adolescence prevents abnormal behavior associated with histone deacetylation in phencyclidine-treated mice]. NIHON SHINKEI SEISHIN YAKURIGAKU ZASSHI = JAPANESE JOURNAL OF PSYCHOPHARMACOLOGY 2012; 32:87-89. [PMID: 22708261] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
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Ichihara H, Koh S, Aoyama Y, Kumura T, Ohta T, Furukawa Y, Terada Y, Yamane T, Hino M, Mugitani A. [Complication of pernicious anemia during interferon-β treatment for type C chronic hepatitis]. [RINSHO KETSUEKI] THE JAPANESE JOURNAL OF CLINICAL HEMATOLOGY 2012; 53:352-356. [PMID: 22499054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A 62-year-old man with chronic hepatitis C underwent interferon (IFN)-β therapy. After treatment for a period comprising 29 months and 2 weeks, hematological results showed a decrease in white blood cell, hemoglobin, and platelet counts (WBC 2,300/µl, Hb 7.2 g/dl, PLT 4.7×10(4)/µl), and IFN therapy was stopped. Despite therapy discontinuation, the pancytopenia continued to progress with elevation of LDH (LDH 4,898 IU/l), and the patient was admitted to our hospital with suspected hematological disease. The patient underwent clinical screening, and pernicious anemia caused by vitamin B12 deficiency was diagnosed. The anemia rapidly improved with vitamin B12 treatment. Interferon is the mainstay of treatment for patients with viral hepatitis. While the adverse effects of interferon therapy are widely recognized, only a few reports have documented pernicious anemia developing during IFN-therapy. We recommend that particular attention be paid to such clinical and laboratory conditions as megaloblastic anemia when administering IFN. We also recommend checking the vitamin B12 level, as a deficiency of this vitamin may lead to the development of megaloblastic anemia.
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Hosen N, Ichihara H, Mugitani A, Aoyama Y, Fukuda Y, Kishida S, Matsuoka Y, Nakajima H, Kawakami M, Yamagami T, Fuji S, Tamaki H, Nakao T, Nishida S, Tsuboi A, Iida S, Hino M, Oka Y, Oji Y, Sugiyama H. CD48 as a novel molecular target for antibody therapy in multiple myeloma. Br J Haematol 2011; 156:213-24. [PMID: 22098460 DOI: 10.1111/j.1365-2141.2011.08941.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Monoclonal antibody (mAb) drugs are desirable for the improvement of multiple myeloma (MM) treatment. In this study, we found for the first time that CD48 was highly expressed on MM plasma cells. In 22 out of 24 MM patients, CD48 was expressed on more than 90% of MM plasma cells at significantly higher levels than it was on normal lymphocytes and monocytes. CD48 was only weakly expressed on some CD34(+) haematopoietic stem/progenitor cells, and not expressed on erythrocytes or platelets. We next examined whether CD48 could serve as a target antigen for mAb therapy against MM. A newly generated in-house anti-CD48 mAb induced mild antibody-dependent cell-mediated cytotoxicity and marked complement-dependent cytotoxicity against not only MM cell lines but also primary MM plasma cells in vitro. Administration of the anti-CD48 mAb significantly inhibited tumour growth in severe combined immunodeficient mice inoculated subcutaneously with MM cells. Furthermore, anti-CD48 mAb treatment inhibited growth of MM cells transplanted directly into murine bone marrow. Finally and importantly, we demonstrated that the anti-CD48 mAb did not damage normal CD34(+) haematopoietic stem/progenitor cells. These results suggest that the anti-CD48 mAb has the potential to become an effective therapeutic mAb against MM.
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