1
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Hayashi K, Tasaka T, Kondo T, Ishikawa Y, Goto M, Matsuhashi Y, Sadahira Y, Sugihara T, Wada H. Successful Cord Blood Transplantation in a Werner Syndrome Patient with High-risk Myelodysplastic Syndrome. Intern Med 2019; 58:109-113. [PMID: 30146558 PMCID: PMC6367075 DOI: 10.2169/internalmedicine.0317-17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Werner syndrome (WS) confers a high risk of the development of neoplasias, including hematological malignancies, and curative treatment for these malignancies is difficult to achieve. A 44-year-old man with myelodysplastic syndrome was admitted to our hospital. He was diagnosed with mutation-proven WS. He underwent cord blood transplantation (CBT) following fludarabine, busulfan, and melphalan administration. A chimerism analysis of his marrow blood on day 62 showed a donor pattern >95%, which confirmed engraftment. The patient lived for 15 months while maintaining remission of MDS without treatment-related toxicity. Our case shows that CBT can be a treatment modality for WS patients with hematological malignancies.
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Affiliation(s)
| | - Taizo Tasaka
- Department of Hematology, Kawasaki Medical School, Japan
- Department of Transfusion Medicine, Saitama Medical Center, Saitama Medical University, Japan
| | | | - Yuichi Ishikawa
- Department of Pathology, The Cancer Institute, Japanese Foundation for Cancer Research, Japan
| | - Makoto Goto
- Department of Rheumatology/Orthopedic Surgery, East Medical Center, Tokyo Women's Medical University, Japan
| | | | | | | | - Hideho Wada
- Department of Hematology, Kawasaki Medical School, Japan
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2
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Oka D, Koresawa R, Fujiwara H, Nishimura H, Irei I, Akiyama T, Hamazaki S, Sadahira Y, Fujimoto W, Masuzawa M. The sphingosine-1-phosphate/S1PR1 axis as a potential therapeutic target in angiosarcoma. J Dermatol Sci 2016. [DOI: 10.1016/j.jdermsci.2016.08.329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Koresawa R, Yamazaki K, Oka D, Fujiwara H, Nishimura H, Akiyama T, Hamasaki S, Wada H, Sugihara T, Sadahira Y. Sphingosine-1-phosphate receptor 1 as a prognostic biomarker and therapeutic target for patients with primary testicular diffuse large B-cell lymphoma. Br J Haematol 2016; 174:264-74. [DOI: 10.1111/bjh.14054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Accepted: 01/15/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Risa Koresawa
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Kazuto Yamazaki
- Department of Pathology; Teikyo University; Chiba Medical Centre; Ichihara Japan
| | - Daigo Oka
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Hideyo Fujiwara
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | | | - Takashi Akiyama
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Shuji Hamasaki
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Hideho Wada
- Department of Haematology; Kawasaki Medical School; Kurashiki Japan
| | - Takashi Sugihara
- Department of Haematology; Kawasaki Medical School; Kurashiki Japan
| | - Yoshito Sadahira
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
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4
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Kawai R, Hata J, Manabe N, Imamura H, Iida A, Nakatou R, Koyama N, Hirai T, Sadahira Y. Contrast-enhanced ultrasonography with Sonazoid for diagnosis of gangrenous cholecystitis. J Med Ultrason (2001) 2015; 43:193-9. [DOI: 10.1007/s10396-015-0677-6] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2015] [Accepted: 09/28/2015] [Indexed: 10/22/2022]
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5
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Torlakovic EE, Brynes RK, Hyjek E, Lee SH, Kreipe H, Kremer M, McKenna R, Sadahira Y, Tzankov A, Reis M, Porwit A. ICSH guidelines for the standardization of bone marrow immunohistochemistry. Int J Lab Hematol 2015; 37:431-49. [DOI: 10.1111/ijlh.12365] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2014] [Accepted: 03/02/2015] [Indexed: 12/25/2022]
Affiliation(s)
- E. E. Torlakovic
- Department of Laboratory Hematology; University Health Network; University of Toronto; Toronto ON Canada
| | - R. K. Brynes
- Department of Pathology; Keck School of Medicine; University of Southern California; Los Angeles CA USA
| | - E. Hyjek
- Department of Pathology; University of Chicago; Chicago IL USA
| | - S.-H. Lee
- Department of Haematology; St George Hospital; SEALS Central; Sydney NSW Australia
| | - H. Kreipe
- Department of Pathology; Hannover Medical School; Hannover Germany
| | - M. Kremer
- Munich Municipal Hospital; Institute of Pathology; Munich Germany
| | - R. McKenna
- Special Hematology; Department of Laboratory Medicine and Pathology; University of Minnesota; Minneapolis MN USA
| | - Y. Sadahira
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - A. Tzankov
- Institute of Pathology; University Hospital Basel; Basel Switzerland
| | - M. Reis
- Department of Clinical Pathology; Sunnybrook Health Sciences Centre; Toronto ON Canada
| | - A. Porwit
- Department of Laboratory Hematology; University Health Network; University of Toronto; Toronto ON Canada
- Department of Pathology; Karolinska Institute; Stockholm Sweden
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6
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Sadahira Y, Sugihara T, Fujiwara H, Nishimura H, Suetsugu Y, Takeshita M, Okamura S, Goto M. WRN protein as a novel erythroblast immunohistochemical marker with applications for the diagnosis of Werner syndrome. Virchows Arch 2014; 466:343-50. [PMID: 25503078 DOI: 10.1007/s00428-014-1703-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2014] [Revised: 11/18/2014] [Accepted: 12/01/2014] [Indexed: 11/25/2022]
Abstract
Genetic testing for mutations in the WRN gene is critical for the diagnosis of Werner syndrome (WS); however, these tests cannot be performed in a clinical setting. Nearly all of the WRN mutations result in expression of truncated WRN proteins that are missing the C-terminal nuclear localization signal. We evaluated the use of WRN protein immunohistochemistry for diagnosing WS using paraffin-embedded bone marrow sections. Using a well-defined commercially available polyclonal antibody against the C terminus of WRN, we found that of all the cell types tested, bone marrow erythroid precursors showed the strongest nuclear expression of WRN. Immunohistochemical analysis of bone marrow samples from 120 patients with non-WS hematological disorders (age range, 7 days-90 years) revealed WRN staining of the nuclei of CD71-positive early and late erythroid precursors. Erythroblasts negative for WRN immunostaining were only observed in two patients, both of whom were diagnosed with WS: one with concomitant myelodysplastic syndrome and the other with erythroleukemia with overexpression of TP53. Western blot analysis and immunocytochemistry indicated WRN was localized in the nuclei of the four positive control cell lines from non-WS patients but not in the five cell lines from WS patients, who had three different types of WRN mutations. Thus, immunohistochemical detection of WRN in erythroblasts from bone marrow paraffin sections could be useful in screening of WS cases and worthy of further molecular confirmation.
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Affiliation(s)
- Yoshito Sadahira
- Department of Pathology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama, 701-0192, Japan,
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7
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Yamagishi T, Shimizu K, Ochi N, Yamane H, Irei I, Sadahira Y, Takigawa N, Oka M, Nakata M. Histological comparison between preoperative and surgical specimens of non-small cell lung cancer for distinguishing between "squamous" and "non-squamous" cell carcinoma. Diagn Pathol 2014; 9:103. [PMID: 24885169 PMCID: PMC4099154 DOI: 10.1186/1746-1596-9-103] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 05/15/2014] [Indexed: 01/13/2023] Open
Abstract
Background Non-small cell lung cancers (NSCLCs) are frequently heterogeneous and in approximately 70% of cases, NSCLCs are diagnosed and staged by small biopsies or cytology rather than by examination of surgically resected specimens. Thus, in most patients, the diagnosis is established based on examination of preoperative specimens alone. Recently, classification of NSCLC into pathologic subtypes has been shown to be important for selecting the appropriate systemic therapy, from both the point of view of treatment efficacy and prevention of toxicity. Methods We retrospectively reviewed the data of 225 patients to compare the preoperative classification of the NSCLC subtype on biopsy specimens with the postoperative classification based on examination of the resected specimens, in order to compare the accuracy of the two for the diagnosis of various histological subtypes of NSCLC. Results In 169 of the 225 (75.1%) patients, the preoperative diagnosis was definite malignancy. Histologically, the final pathologic diagnosis made from the surgical specimens was adenocarcinoma (ADC) in 169 patients, and in 75.5% of these cases, the diagnosis was concordant with the preoperative diagnosis. Among the patients who had squamous cell carcinoma (SQC) in the preoperative specimens, the diagnosis was concordant with the preoperative diagnosis in 65.7% of cases. Misclassified preoperative biopsies included an even number of SQCs and ADCs, with all the misclassified biopsies being ADCs morphologically mimicking SQC due to solid growth. Significantly higher specificity, negative predictive value and accuracy were observed for the diagnosis of SQC. Conclusions Our study suggested that the concordance rates for diagnosis of the NSCLC subtypes, especially the "squamous" or "non-squamous" histologies, between preoperative and surgical specimens were satisfactory, as compared with previous reports. Therefore, pretreatment diagnosis of lung cancer using small samples is reasonable for selecting the optimal treatment. However, in order not to lose the opportunity for selecting an effective treatment, we should be aware that the diagnosis in preoperative small samples might be different from that based on examination of the surgical specimens. Virtual Slides The virtual slide(s) for this article can be found here:
http://www.diagnosticpathology.diagnomx.eu/vs/2032698427120488
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Affiliation(s)
| | - Katsuhiko Shimizu
- Department of General Thoracic Surgery, Kawasaki Medical School, 577 Matsushima, Kurashiki, Okayama 701-0192, Japan.
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8
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Kikuma K, Yamada K, Nakamura S, Ogami A, Nimura S, Hirahashi M, Yonemasu H, Urabe S, Naito S, Matsuki Y, Sadahira Y, Takeshita M. Detailed clinicopathological characteristics and possible lymphomagenesis of type II intestinal enteropathy-associated T-cell lymphoma in Japan. Hum Pathol 2014; 45:1276-84. [PMID: 24746558 DOI: 10.1016/j.humpath.2013.10.038] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2013] [Revised: 10/16/2013] [Accepted: 10/24/2013] [Indexed: 02/07/2023]
Abstract
Twenty-six Japanese cases of type II enteropathy-associated T-cell lymphoma (EATL) were examined. Multiple tumors throughout the small intestine were found in 15 patients (58%) and duodenal and colonic mucosal lesions in 8 and 6 cases, respectively. Histologically, intramucosal tumor spread and a zone of neoplastic intraepithelial lymphocytes (IELs) neighboring the main transmural tumors were detected in 20 (91%) and 17 (77%) of the 22 cases examined, respectively. Inside and outside the IEL zone, some degree of enteropathy with many reactive small IELs and villous atrophy was detected in 11 cases (50%). Immunohistologically, many CD56/CD8-positive small IELs were found in the enteropathic lesions of 4 (36%) and 7 (64%) of these 11 cases. Lymphoma cells expressed tyrosine kinase receptor c-Met, serial phosphorylated (p)-mitogen-activated protein kinase/extracellular signal-regulated kinase, c-Myc, and Bcl2 in 18 (78%), 21 (91%), 11 (42%), and 19 (73%) of the total cases, respectively. By fluorescence in situ hybridization, chromosomal loci 7q31 (c-Met) and 8q24 (c-Myc) were amplified in 11 (65%) and 12 (71%) of the 17 cases analyzed. Gain of 7q31 and c-Met expression were significantly (P < .01) higher than in peripheral CD8-positive T-cell or CD56-positive natural killer-cell lymphomas. Enteropathy was seen near the IEL zone in type II EATL, and activation of the c-Met, mitogen-activated protein kinase/extracellular signal-regulated kinase-mitogen-activated protein kinase pathway, and c-Myc-Bcl2-mediated cell survival may play important roles in lymphomagenesis, converting enteropathy to type II EATL. Seven cases in the early clinical stages I and II-1 showed significantly (P < .01) better prognoses than did those in the advanced stages. Early detection of the mucosal lesions and tumors may improve patient prognosis.
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Affiliation(s)
- Kanta Kikuma
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, 81400180, Japan
| | - Kozue Yamada
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, 81400180, Japan
| | - Shotaro Nakamura
- Department of Medicine and Clinical Science, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 814858, Japan
| | - Akiko Ogami
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, 81400180, Japan
| | - Satoshi Nimura
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, 81400180, Japan
| | - Minako Hirahashi
- Department of Anatomic Pathology, Graduate School of Medical Sciences, Kyushu University, Fukuoka, 814858, Japan
| | - Hirotoshi Yonemasu
- Second Pathology Laboratory, Oita Red Cross Hospital, Oita, 8700033, Japan
| | - Shogo Urabe
- Pathology Laboratory, Oita Prefectural Hospital, Oita, 8708511, Japan
| | - Shinji Naito
- Pathology Laboratory, National Organization Ureshino Hospital, Ureshino, 8430393, Japan
| | - Yasumasa Matsuki
- Pathology Laboratory, Kenwakai Otemachi Hospital, Kitakyushu, 8038543, Japan
| | - Yoshito Sadahira
- Department of Pathology, Kawasaki Medical School, Kurashiki, 7010192, Japan
| | - Morishige Takeshita
- Department of Pathology, Faculty of Medicine, Fukuoka University, Fukuoka, 81400180, Japan.
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9
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Yoshida N, Oda M, Kuroda Y, Katayama Y, Okikawa Y, Masunari T, Fujiwara M, Nishisaka T, Sasaki N, Sadahira Y, Mihara K, Asaoku H, Matsui H, Seto M, Kimura A, Arihiro K, Sakai A. Clinical significance of sIL-2R levels in B-cell lymphomas. PLoS One 2013; 8:e78730. [PMID: 24236041 PMCID: PMC3827264 DOI: 10.1371/journal.pone.0078730] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 09/16/2013] [Indexed: 02/03/2023] Open
Abstract
Elevated soluble interleukin-2 receptor (sIL-2R) in sera is observed in patients with malignant lymphoma (ML). Therefore, sIL-2R is commonly used as a diagnostic and prognostic marker for ML, but the mechanisms responsible for the increase in sIL-2R levels in patients with B-cell lymphomas have not yet been elucidated. We first hypothesized that lymphoma cells expressing IL-2R and some proteinases such as matrix metalloproteinases (MMPs) in the tumor microenvironment can give rise to increased sIL-2R in sera. However, flow cytometric studies revealed that few lymphoma cells expressed IL-2R α chain (CD25) in diffuse large B-cell lymphoma (DLBCL) and follicular lymphoma (FL), and most CD25-expressing cells in the tumor were T-cells. Distinct correlations between CD25 expression on B-lymphoma cells and sIL-2R levels were not observed. We then confirmed that MMP-9 plays an important role in producing sIL-2R in functional studies. Immunohistochemical (IHC) analysis also revealed that MMP-9 is mainly derived from tumor-associated macrophages (TAMs). We therefore evaluated the number of CD68 and CD163 positive macrophages in the tumor microenvironment using IHC analysis. A positive correlation between the levels of sIL-2R in sera and the numbers of CD68 positive macrophages in the tumor microenvironment was confirmed in FL and extranodal DLBCL. These results may be useful in understanding the pathophysiology of B-cell lymphomas.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antigens, CD/metabolism
- Antigens, Differentiation, Myelomonocytic/metabolism
- Biomarkers, Tumor/blood
- Cell Line, Tumor
- Humans
- Interleukin-2 Receptor alpha Subunit/metabolism
- Lymphoma, B-Cell/blood
- Lymphoma, B-Cell/mortality
- Lymphoma, B-Cell/pathology
- Macrophages/enzymology
- Matrix Metalloproteinase 9/metabolism
- Middle Aged
- Prognosis
- Receptors, Cell Surface/metabolism
- Receptors, Interleukin-2/blood
- Statistics, Nonparametric
- Survival Analysis
- Tumor Microenvironment
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Affiliation(s)
- Noriaki Yoshida
- Department of Hematology and Oncology, Research Institute Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
- Department of Cancer Genetics, Nagoya University Graduate School of Medicine at Aichi Cancer Center Research Institute, Nagoya, Japan
- * E-mail: (NY); (AS)
| | - Miyo Oda
- Department of Anatomical Pathology, Hiroshima University, Hiroshima, Japan
| | - Yoshiaki Kuroda
- Department of Hematology and Oncology, Research Institute Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Yuta Katayama
- Department of Internal Medicine, Hiroshima Red Cross Hospital & Atomic-Bomb Survivors Hospital, Hiroshima, Japan
| | - Yoshiko Okikawa
- Department of Hematology, National Hospital Organization Kure Medical Center, Kure, Japan
| | - Taro Masunari
- Department of Hematology, Chugoku Central Hospital, Fukuyama, Japan
| | - Megumu Fujiwara
- Department of Pathology, Hiroshima Red Cross Hospital & Atomic-Bomb Survivors Hospital, Hiroshima, Japan
| | - Takashi Nishisaka
- Department of Laboratory Pathology, Hiroshima Prefecture Hospital, Hiroshima, Japan
| | - Naomi Sasaki
- Department of Pathology, Kure Kyosai Hospital, Kure, Japan
| | - Yoshito Sadahira
- Department of Pathology, Kawasaki Medical School, Kurashiki, Japan
| | - Keichiro Mihara
- Department of Hematology and Oncology, Research Institute Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Hideki Asaoku
- Department of Internal Medicine, Hiroshima Red Cross Hospital & Atomic-Bomb Survivors Hospital, Hiroshima, Japan
| | - Hirotaka Matsui
- Department of Molecular Oncology & Leukemia Program Project, Research Institute for Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
| | - Masao Seto
- Division of Molecular Medicine, Aichi Cancer Center Research Institute, Nagoya, Japan
- Department of Cancer Genetics, Nagoya University Graduate School of Medicine at Aichi Cancer Center Research Institute, Nagoya, Japan
| | - Akiro Kimura
- Department of Hematology and Oncology, Research Institute Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Department of Laboratory medicine, Kure Kyosai Hospital, Kure, Japan
| | - Koji Arihiro
- Department of Anatomical Pathology, Hiroshima University, Hiroshima, Japan
| | - Akira Sakai
- Department of Hematology and Oncology, Research Institute Radiation Biology and Medicine, Hiroshima University, Hiroshima, Japan
- Department of Radiation Life Science, Fukushima Medical University, Fukushima, Japan
- * E-mail: (NY); (AS)
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10
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Fujiwara H, Akiyama T, Nishimura H, Monobe Y, Oka Y, Hirai T, Sadahira Y. Primary intestinal NK-cell lymphoma with a CD8+ CD56+ immunophenotype: a case report. Pathol Int 2013; 63:138-40. [PMID: 23464973 DOI: 10.1111/pin.12034] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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11
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Kosaka N, Hayashi H, Mito T, Nagasu A, Sakuta T, Nishimura H, Sadahira Y, Morita Y. Predominance of Th2 and regulatory cytokines in the serum of a patient with IgG4-related lymphadenopathy. Int J Rheum Dis 2013; 16:486-8. [DOI: 10.1111/1756-185x.12123] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Nami Kosaka
- Department of Rheumatology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Hiroaki Hayashi
- Department of Dermatology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Takafumi Mito
- Department of Rheumatology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Akiko Nagasu
- Department of Rheumatology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Takeo Sakuta
- Department of Rheumatology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Hirotake Nishimura
- Department of Pathology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Yoshito Sadahira
- Department of Pathology; Kawasaki Medical School; Kurashiki Okayama Japan
| | - Yoshitaka Morita
- Department of Rheumatology; Kawasaki Medical School; Kurashiki Okayama Japan
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12
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Matsumoto N, Kimura K, Uno M, Sakai K, Sadahira Y, Nishimura H. Abstract WP136: Enhanced Carotid Plaque on Contrast-enhanced Ultrasound is Asociated with Plaque Instability and Symptomatic Patients. Stroke 2013. [DOI: 10.1161/str.44.suppl_1.awp136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Presence of neovascularization in plaque was reported as a reliable maker of plaque vulnerability. Contrast-enhanced ultrasound (CEUS) can demonstrate the presence of intraplaque neovascularization. The aim of the present study was to investigate the neurological symptom and histopathologic findings of enhanced carotid plaque using CEUS.
Methods:
We studied consecutive 30 patients (27 men, age 68.2 ± 7.6 years) who underwent carotid endarterectomy. Enhanced plaque (enhanced group) was classified into two subgroups: a spotty pattern as moving bright spots within plaque (spotty subgroup, Figure A); and a linear pattern, where enhanced lesions appeared as a line from intima into plaque (linear subgroup, Figure B).Sonazoid, perflurobutane microbubbles, was used as the contrast agent. We investigated the association between the neurological symptom, CEUS findings and histopathologic findings.
Results:
CEUS revealed enhanced plaque in 22 (73.3%) of 30 patients. 10 patients were spotty subgroup, and 12 patients were linear subgroup. Symptomatic patients were more frequent in enhanced group than non-enhanced group (82.6% vs. 50%, p=0.037).The amount of neovascularization was larger in enhanced group than in non-enhanced group (6.3±4.2/2.5mm
2
vs. 1.5±1.6/2.5 mm
2
, P=0.001, Figure C). Furthermore, the enhanced group had more macrophage aggregation (11.1±12.5% vs. 4.2±1.5%, P=0.001) and intraplaque hemorrhage (20.2±15.9% vs. 9.4±12.2%, P=0.031) compared with the non-enhanced group. 11 of the linear subgroup (91.7%) had fibrous cap rupture, but this was observed in only 20% of those with a spotty subgroup (P=0.001, Figure D). Symptom and other histopathological findings were not different between the two subgroups.
Conclusions:
Enhanced plaque on CEUS indicates vulnerable plaque. A linear pattern of enhanced plaque indicates plaque rupture. Enhanced plaque on CEUS should become a new surrogate marker of vulnerable carotid plaque and patients.
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Affiliation(s)
| | - Kazumi Kimura
- Dept of Stroke Medicine, Kawasaki Med Scool, Okayama, Japan
| | - Masaaki Uno
- Dept of Neurosurgery, Kawasaki Med Scool, Okayama, Japan
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13
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Shiomi T, Monobe Y, Kuwabara C, Hayashi H, Yamamoto T, Sadahira Y. Poikilodermatous mycosis fungoides with a CD8+ CD56+ immunophenotype: a case report and literature review. J Cutan Pathol 2012; 40:317-20. [DOI: 10.1111/cup.12067] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2012] [Revised: 11/05/2012] [Accepted: 11/11/2012] [Indexed: 11/28/2022]
Affiliation(s)
- Tatsushi Shiomi
- Department of Pathology, Kawasaki Medical School; Kawasaki Hospital; Okayama Japan
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Yasumasa Monobe
- Department of Pathology, Kawasaki Medical School; Kawasaki Hospital; Okayama Japan
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
| | - Chiaki Kuwabara
- Department of Dermatology, Kawasaki Medical School; Kawasaki Hospital; Okayama Japan
| | - Haruko Hayashi
- Department of Dermatology, Kawasaki Medical School; Kawasaki Hospital; Okayama Japan
| | - Takenobu Yamamoto
- Department of Dermatology, Kawasaki Medical School; Kawasaki Hospital; Okayama Japan
| | - Yoshito Sadahira
- Department of Pathology; Kawasaki Medical School; Kurashiki Japan
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14
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Kamada T, Kurose H, Yamanaka Y, Manabe N, Kusunoki H, Shiotani A, Inoue K, Hata J, Matsumoto H, Akiyama T, Hirai T, Sadahira Y, Haruma K. Relationship between gastroesophageal junction adenocarcinoma and Helicobacter pylori infection in Japan. Digestion 2012; 85:256-60. [PMID: 22472851 DOI: 10.1159/000336352] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2011] [Accepted: 01/10/2012] [Indexed: 02/04/2023]
Abstract
BACKGROUND/AIMS The relationship between gastroesophageal junction adenocarcinoma (GEJA) and Helicobacter pylori infection is not well defined; thus, we retrospectively investigated this relationship. METHODS We examined 852 cases (646 men) of gastric cancer. GEJA was defined as type II according to the classification system of Siewert and Stein. We compared the prevalence of H. pylori infection and corporal gastritis in GEJA patients with distal gastric cancer. RESULTS GEJA was observed in 80 (including 6 cases of Barrett's esophageal cancer) of the 852 cases of gastric cancer examined (9.4%). The rate of H. pylori infection was significantly lower in patients with GEJA than in patients with distal gastric cancer (73.8 vs. 94.1%, p < 0.05). The prevalence of corporal gastritis was also significantly lower in patients with GEJA than in patients with distal gastric cancer (80.7 vs. 94.6%, p < 0.05). Concurrent H. pylori infection and corporal gastritis were not observed in patients with Barrett's esophageal cancer. CONCLUSION Our study demonstrated that GEJA has 2 etiologic types; one of these types is associated with H. pylori infection and resembles distal gastric cancer, and the other one is not associated with H. pylori infection or Barrett's esophageal cancer.
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Affiliation(s)
- Tomoari Kamada
- Division of Gastroenterology, Department of Internal Medicine, Okayama Kyoritsu Hospital, Okayama, Japan.
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15
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Matsumoto N, Kimura K, Uno M, Sakai K, Sadahira Y, Nishimura H. Enhanced Carotid Plaque on Contrast-Enhanced Ultrasound is Associated with Plaque Instability and Rupture. Int J Stroke 2012; 7:E12. [DOI: 10.1111/j.1747-4949.2012.00888.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Noriko Matsumoto
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki City, Okayama, Japan
| | - Kazumi Kimura
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki City, Okayama, Japan
| | - Masaaki Uno
- Department of Neurosurgery, Kawasaki Medical School, Kurashiki City, Okayama, Japan
| | - Kenichirou Sakai
- Department of Stroke Medicine, Kawasaki Medical School, Kurashiki City, Okayama, Japan
| | - Yoshito Sadahira
- Department of Pathology, Kawasaki Medical School, Kurashiki City, Okayama, Japan
| | - Hirotake Nishimura
- Department of Pathology, Kawasaki Medical School, Kurashiki City, Okayama, Japan
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16
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Matsumoto N, Kimura K, Uno M, Sakai K, Sadahira Y, Nishimura H. Abstract 2291: Enhanced Carotid Plaque On Contrast-enhanced Ultrasound Is Associated With Plaque Instability And Rupture. Stroke 2012. [DOI: 10.1161/str.43.suppl_1.a2291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background:
Ischemic stroke is one of causes of atherosclerotic diseases, and is closely associated with vulnerable plaque at the origin of the internal carotid artery. Several studies have shown that neovascularization in atheromatous plaque serves as a reliable maker of plaque vulnerability.Contrast-enhanced ultrasound (CEUS) can demonstrate the presence of carotid intraplaque neovascularization. The aim of the present study was to investigate the histopathologic findings of enhanced carotid plaque on CEUS.
Methods:
We studied consecutive 18 patients (16 men, mean age 69.4 ± 6.7 years) who underwent carotid endarterectomy. Enhanced plaque was classified into two subgroups: a spotty pattern as moving bright spots within plaque (
Figure 1
A, Panel A); and a linear pattern, where enhanced lesions appeared as a line from intima into plaque (
Figure 1
B, Panel A). Sonazoid (Daiich-Sankyo, Tokyo, Japan), perflurobutane microbubbles, was used as the contrast agent. A bolus intravenous injection of Sonazoid (0.015 mL/kg body weight (0.12 μ L perflurobutane microbubble /kg body weight)) was performed via the peripheral venous line followed by a flush with 10 mL of normal saline. We investigated the association between enhanced plaque on CEUS and histopathologic findings.
Results:
CEUS revealed enhanced plaque in 11 (61.1%) of 18 patients. Only a spotty pattern (spotty subgroup) was observed in 5 patients, whereas both a spotty and linear pattern (linear subgroup) was observed in 6. The amount of neovascularization was larger in enhanced than in non-enhanced plaque (6.79 ± 5.17/2.5 mm
2
vs. 1.12 ± 0.90/2.5 mm
2
, P=0.001). Furthermore, the enhanced group had more macrophage aggregation (7.76 ± 3.70% vs. 4.23 ± 1.63%, P=0.030) and intraplaque hemorrhage (18.84 ± 14.88% vs. 5.52 ± 9.68%, P=0.013) compared with the non-enhanced group. Thin fibrous cap (<200 μ m) was more frequent in enhanced than non-enhanced plaque (100% vs. 28.6%, P=0.002). All of the enhanced plaques with a linear pattern had fibrous cap rupture, but this was observed in only 20% of those with a spotty pattern (P=0.015,
Figure 1
B, Panel B).
Conclusions:
Enhanced plaque on CEUS indicates vulnerable plaque. A linear pattern of enhanced plaque indicates plaque rupture. Enhanced plaque on CEUS should become a new surrogate marker of vulnerable carotid plaque.
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Affiliation(s)
| | - Kazumi Kimura
- Dept of Stroke Medicine, Kawasaki Med school, Okayama, Japan
| | - Masaaki Uno
- Dept of Neurosurgery, Kawasaki Med shool, Okayama, Japan
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17
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18
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Kume T, Okura H, Kawamoto T, Yamada R, Miyamoto Y, Hayashida A, Watanabe N, Neishi Y, Sadahira Y, Akasaka T, Yoshida K. Assessment of the coronary calcification by optical coherence tomography. EUROINTERVENTION 2011; 6:768-72. [DOI: 10.4244/eijv6i6a130] [Citation(s) in RCA: 101] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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19
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Nishimura H, Akiyama T, Irei I, Hamazaki S, Sadahira Y. Cellular localization of sphingosine-1-phosphate receptor 1 expression in the human central nervous system. J Histochem Cytochem 2010; 58:847-56. [PMID: 20566754 DOI: 10.1369/jhc.2010.956409] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
Sphingosine-1-phosphate (S1P), a potent lipid mediator, transduces intracellular signals through the activation of S1P receptors (S1PRs). Although S1PRs have been shown to play an important role in the central nervous system (CNS), accurate localization and the function of S1PR1 in the human CNS are still unclear. In this study, we investigated the localization of S1PR1 in the human CNS of postmortem samples, using a rabbit polyclonal antibody, the specificity of which had been well defined. Immunohistochemical investigation of paraffin-embedded sections revealed diffuse granular staining of the gray matter. The signals of the gray matter were much stronger than those of the white matter. The immunohistochemical expression levels correlated well with the results of quantitative real-time RT-PCR-based analysis and Western blotting. Studies using double immunostaining and immunoelectron microscopy revealed that the antigen was strongly expressed in the membrane of the astrocytic foot processes of glia limitans and astrocytes with radial cytoplasm, but not distributed in neurons. In neurological disorders, hypertrophic astrocytes with strong expression of glial fibrillary acidic protein exhibited significantly decreased expression of S1PR1 in contrast to its strong expression in astrocytes forming fibrillary gliosis. These results indicate that S1PR1 is localized in astrocytes, and its expression level may change during the processes that occur after brain damage.
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Affiliation(s)
- Hirotake Nishimura
- Department of Pathology, Kawasaki Medical School, Kurashiki, Okayama, Japan.
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20
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Koga H, Shimizu K, Tarumi KI, Sadahira Y, Matsumoto T, Iida M, Haruma K. Rectal mucosal prolapse syndrome as an unusual gastrointestinal manifestation of Sjögren's syndrome: a case report. J Med Case Rep 2009; 3:85. [PMID: 19946561 PMCID: PMC2783084 DOI: 10.1186/1752-1947-3-85] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2009] [Accepted: 10/30/2009] [Indexed: 11/10/2022] Open
Abstract
Introduction Rectal mucosal prolapse syndrome, histologically characterized by fibromuscular obliteration in the lamina propria, hyperplastic glands and thickened muscularis mucosa, causes rectal bleeding. Sjögren's syndrome is an autoimmune exocrinopathy that chiefly destroys the salivary and lacrimal glands by lympho-plasmacytic infiltration. Although various gastrointestinal manifestations have been reported in patients with Sjögren's syndrome, there have not been to our knowledge any case reports to date of rectal mucosal prolapse syndrome in association with Sjögren's syndrome. Case presentation A 68-year-old Japanese woman with Sjögren's syndrome and long-term constipation consulted our hospital because of rectal bleeding. Because of dysphagia and xerostomia, she had consistently refused recommendations to take oral medicines including cathartics. Therefore, she frequently strained excessively during defecation. Colonoscopy and radiological examinations disclosed eroded flat protrusions of the rectum. Microscopic examination demonstrated inflamed mucosa with elongated tortuous glands and fibromuscular obliteration. Based on these findings, a diagnosis of rectal mucosal prolapse syndrome was made. Prohibition of straining during defecation and sulfasalazine suppository use were effective. Conclusion This case highlights the importance of defecation control in patients with Sjögren's syndrome. In the case presented, rectal mucosal prolapse syndrome following long-term excessive straining during defecation caused rectal bleeding. Clinicians should consider rectal mucosal prolapse syndrome as a gastrointestinal manifestation of Sjögren's syndrome.
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21
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Kubo Y, Tasaka T, Sano F, Matsuhashi Y, Nishimura H, Sadahira Y, Wada H, Sugihara T. Amyloid-associated amyloidosis in a HCV carrier with non-Hodgkin's lymphoma who had been treated with autologous stem cell transplantation and rituximab. Leuk Lymphoma 2009; 48:2075-8. [DOI: 10.1080/10428190701606842] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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22
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Nakashima K, Kurebayashi J, Sonoo H, Tanaka K, Ikeda M, Shiiki S, Yamamoto Y, Nomura T, Sohda M, Seki M, Miyake A, Moriya T, Sadahira Y, Mimura H, Fukunaga M. Preoperative dynamic lymphoscintigraphy predicts sentinel lymph node metastasis in patients with early breast cancer. Breast Cancer 2009; 17:17-21. [PMID: 19466508 DOI: 10.1007/s12282-009-0123-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2009] [Accepted: 03/19/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND Preoperative lymphoscintigraphy is commonly used in sentinel lymph node biopsy (SLNB) for patients with early breast cancer; however, its significance to predict SLN metastasis remains to be determined. PATIENTS AND METHODS Sixty patients were enrolled in a feasibility study of SLNB. Patients with clinically node-negative breast cancer were eligible for this study. Dynamic lymphoscintigraphy was performed before SLNB. All patients underwent SLNB followed by axillary lymph node dissection. RESULTS A dual mapping procedure using isotope and dye injections was performed. SLNs were identified in 59 of 60 patients (98.3%), with a node-positive rate of 41.7% and a false-negative rate of 1.7%. No SLN was identified in 4 of 60 patients (6.7%) on preoperative lymphoscintigraphy. Interestingly, abnormal accumulation of the radiotracer close to hot spots was observed in 29 of 56 patients (51.8%). Lymph node metastases were detected in 18 of 29 patients (62.0%) with this pattern and 5 of 27 patients (18.5%) without this pattern (P < 0.05). Micrometastases were more frequently detected in node-positive patients without this pattern than in those with this pattern (80 vs. 16.7%). Diagnostic parameters of this pattern to predict SLN metastases, including micrometastases, were 62.1% for sensitivity, 81.5% for specificity, and 71.4% for accuracy. CONCLUSIONS Abnormal accumulation of the radiotracer close to radioactive spots may indicate SLN metastasis. When dynamic lymphoscintigraphy shows this pattern, surgeons should consider the presence of SLN metastasis and carefully remove additional lymph nodes surrounding radioactive lymph nodes so as not to leave metastatic SLNs behind.
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Affiliation(s)
- Kazutaka Nakashima
- Department of Breast and Thyroid Surgery, Kawasaki Medical School, Matsushima, Kurashiki, Okayama, Japan
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23
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Kondo T, Tasaka T, Sano F, Matsuda K, Kubo Y, Matsuhashi Y, Nakanishi H, Sadahira Y, Wada H, Sugihara T, Tohyama K. Philadelphia chromosome-positive acute myeloid leukemia (Ph + AML) treated with imatinib mesylate (IM): a report with IM plasma concentration and bcr-abl transcripts. Leuk Res 2009; 33:e137-8. [PMID: 19371951 DOI: 10.1016/j.leukres.2009.03.017] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2009] [Revised: 03/13/2009] [Accepted: 03/13/2009] [Indexed: 11/29/2022]
Abstract
We studied the efficacy and pharmacokinetics of imatinib mesylate (IM) and bcr-abl expression in a Philadelphia chromosome-positive acute myeloid leukemia (Ph + AML) patient, a rare disease with a poor prognosis. Although sufficient IM trough concentrations were maintained, bcr-abl transcripts revealed only one-log reduction with IM monotherapy, suggesting a resistance against IM, and this patient required additional chemotherapy. Despite the resistance against IM at induction therapy, the patient has been in complete molecular response for more than 6 months with IM maintenance monotherapy. Our experience suggests that IM might have a positive role in consolidation and/or maintenance therapy in remission Ph + AML patients.
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Affiliation(s)
- Toshinori Kondo
- Division of Hematology Department of Medicine, Kawasaki Medical School, Okayama 701-0192, Japan
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24
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Hida AI, Yagi SI, Obase Y, Nishimura H, Akiyama T, Irei I, Hamazaki S, Oka M, Sadahira Y. Rosai-Dorfman disease presenting as a solitary mediastinal mass. Pathol Int 2009; 59:265-8. [DOI: 10.1111/j.1440-1827.2009.02362.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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25
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Mannouji K, Tasaka T, Akiyama T, Irei I, Sano F, Matsuhashi Y, Wada H, Tohyama K, Sugihara T, Sadahira Y. Transformation from follicular lymphoma to high-grade B-cell lymphoma/leukemia with additional t(2;8)(p12;q24), with inverse expressions of c-MYC and BCL-2, and light-chain switch. Pathol Int 2009; 59:261-4. [DOI: 10.1111/j.1440-1827.2009.02361.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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26
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Abstract
Herein is reported a case of pancreatic serous microcystic adenoma with extensive oncocytic change in a 73-year-old woman. Histologically the tumor consisted of numerous small cysts, separated by thin or broad fibrous septa. These cysts were lined with uniform cells having abundant eosinophilic granular cytoplasm, which was negatively or weakly stained with PAS. Immunohistochemically, the cyst-lining cells were positive for cytokeratin (CK) 7, CK19, MUC1, MUC6, alpha-inhibin, and neuron-specific enolase (NSE), and negative for CK8, CK20, MUC2, and MUC5AC; these immunoprofiles coincide with those of serous microcystic adenoma. Immunostaining with anti-mitochondrial antibody showed dense granular positivity in the cytoplasm, which suggested an oncocytic phenotype. Thus, this case is considered a variant of serous microcystic adenoma characterized by extensive oncocytic change. To the authors' knowledge no similar case has been reported in the literature. It may pose problems in the differential diagnosis of the cystic pancreatic tumors with oncocytic change, but can be diagnosed on histology and immunohistochemistry.
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Affiliation(s)
- Takashi Akiyama
- Department of Pathology, Kawasaki Medical School, 577 Matsushima, Kurashiki, Japan
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27
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Kume T, Okura H, Yamada R, Kawamoto T, Watanabe N, Neishi Y, Sadahira Y, Akasaka T, Yoshida K. Frequency and Spatial Distribution of Thin-Cap Fibroatheroma Assessed by 3-Vessel Intravascular Ultrasound and Optical Coherence Tomography An Ex Vivo Validation and an Initial In Vivo Feasibility Study. Circ J 2009; 73:1086-91. [DOI: 10.1253/circj.cj-08-0733] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
| | | | | | | | | | - Yoji Neishi
- Department of Cardiology, Kawasaki Medical School
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Abstract
We describe a case of systemic mastocytosis associated with myelodysplastic syndrome. The bone marrow showed multifocal clusters of mast cells and myeloid dysplasia. Sequencing of the KIT DNA revealed a point mutation at codon 816 including a substitution of valine for aspartic acid (D816V). The patient's tumor did not respond to imatinib; however, interferon-alpha reduced the bone marrow mast cells and serum total tryptase. The patient remains alive at one year after the diagnosis without disease progression.
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Affiliation(s)
- Chikamasa Yoshida
- Division of Hematology, Department of Internal Medicine, National Hospital Organization Minami-Okayama Medical Center, Okayama.
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29
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Akiyama T, Okino T, Konishi H, Wani Y, Notohara K, Tsukayama C, Tsunoda T, Tasaka T, Masaki Y, Sugihara T, Sadahira Y. CD8+, CD56+ (natural killer-like) T-cell lymphoma involving the small intestine with no evidence of enteropathy: clinicopathology and molecular study of five Japanese patients. Pathol Int 2008; 58:626-34. [PMID: 18801082 DOI: 10.1111/j.1440-1827.2008.02281.x] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
The present study reports five CD8+, CD56+ (natural killer (NK)-like) T-cell lymphomas involving the small intestine without evidence of enteropathy, from Japan. Three were intestinal T-cell lymphoma. The site of origin of the other two was not definitive. Four of five patients underwent emergency operation because of intestinal perforation. The small intestines of these patients had multiple ulcerative lesions with or without demarcated tumors. Histologically, the lymphoma cells were monomorphic or slightly pleomorphic and displayed epitheliotropism of varying degrees. Lymphoma cells of all patients shared the common phenotype: CD3+, CD4-, CD5-, CD8+, CD56+, CD57-, T-cell intracellular antigen-1+, granzyme B+. In contrast to nasal/nasal type NK-cell lymphomas, they had clonal rearrangement of T-cell receptor(TCR) genes and were negative for EBV-encoded RNA. Immunohistochemistry and genetics suggested that three cases were of alpha beta T-cell origin and two cases were of gamma delta T-cell origin. There was no evidence of enteropathy in any patient. The cases followed a clinically aggressive course with a frequent involvement of lung. According to the classification based on the recent genetic studies of European enteropathy-type intestinal T-cell lymphoma (ETL), the present cases could be classified as type 2 ETL.
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Affiliation(s)
- Takashi Akiyama
- Department of Pathology, Kawasaki Medical School, Kurashiki, Japan
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30
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Sano F, Tasaka T, Nishimura H, Akiyama T, Kubo Y, Matsuhashi Y, Wada H, Sugihara T, Sadahira Y. Small cell variant of anaplastic large cell lymphoma diagnosed by a novel chromosomal abnormality t(2;5;3)(p23;q35;p21) of bone marrow cells. Pathol Int 2008; 58:494-7. [DOI: 10.1111/j.1440-1827.2008.02262.x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Affiliation(s)
- Teruyoshi Kume
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Hiroyuki Okura
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Takahiro Kawamoto
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Takashi Akasaka
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Eiji Toyota
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Nozomi Watanabe
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Yoji Neishi
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Yoshito Sadahira
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
| | - Kiyoshi Yoshida
- From the Department of Cardiology (T. Kume, H.O., T. Kawamoto, E.T., N.W., Y.N., K.Y.) and Department of Pathology (Y.S.), Kawasaki Medical School, Kurashiki, Japan; and Department of Cardiology, Wakayama Medical University, Wakayama, Japan (T.A.)
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Kume T, Okura H, Kawamoto T, Akasaka T, Toyota E, Watanabe N, Neishi Y, Sukmawan R, Sadahira Y, Yoshida K. Relationship between coronary remodeling and plaque characterization in patients without clinical evidence of coronary artery disease. Atherosclerosis 2008; 197:799-805. [PMID: 17822707 DOI: 10.1016/j.atherosclerosis.2007.07.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/04/2007] [Revised: 07/24/2007] [Accepted: 07/26/2007] [Indexed: 11/28/2022]
Abstract
AIMS The objectives of this study were: (1) to evaluate the relationship between coronary arterial remodeling assessed by intravascular ultrasound (IVUS) and plaque morphology assessed by histological examination in patients without clinical evidence of coronary artery disease and (2) to compare plaque morphology between histological examination and optical coherence tomography (OCT). METHODS Coronary segments (n=98) were harvested from the heart of 34 patients who died without clinical evidence of coronary artery disease. The segments with remodeling were assessed by IVUS and compared with corresponding OCT and histological images. RESULTS The fibrofatty plaque area was larger in lesions with expansive remodeling (ER) than in lesions with intermediate/constrictive remodeling (IR/CR) (p<0.01). Incidence of lipid containing plaque with the thickness of the fibrous cap smaller than 200 microm tended to be higher in ER than in IR/CR (34% versus 13%, p=0.10). OCT assessment of lipid containing plaque with thinner fibrous cap was achieved with 92% sensitivity and 75% specificity. CONCLUSIONS The fibrofatty plaque area was larger in lesions with ER than IR/CR even in patients without clinical evidence of coronary artery disease. The current capabilities of OCT are well suited for evaluation of lipid containing plaques with thinner fibrous cap.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, 577 Matsushima, Kurashiki 701-0192, Japan
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33
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Sano F, Tasaka T, Nishimura H, Akiyama T, Kubo Y, Matsuhashi Y, Wada H, Sugihara T, Yamakawa M, Sadahira Y. A Peculiar Case of Acute Myeloid Leukemia Mimicking Plasmacytoid Dendritic Precursor Cell Leukemia. J Clin Exp Hematop 2008; 48:65-9. [DOI: 10.3960/jslrt.48.65] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022] Open
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34
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35
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Tsujioka T, Wada H, Yata KI, Kondo T, Suemori S, Tokunaga H, Ohmori K, Kubo Y, Nakanishi H, Mikami M, Haruma K, Sadahira Y, Sugihara T. [Clinical analysis of eight patients with primary follicular lymphoma in the duodenum]. Rinsho Ketsueki 2007; 48:134-9. [PMID: 17370641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
We performed a clinical analysis on 8 patients with primary follicular lymphoma in the duodenum taken from among 26 cases of primary gastrointestinal malignant lymphoma treated in our division. The median age was 60 years (range 48 to 82 yr). The ratio of males to females was 4:4. The chief complaints were no symptoms in 4 cases, heartburn in 2 cases, lower abdominal pain in 1 case, and back pain in 1 case. All patients were in clinical stage I EA. Gastroendoscopic findings showed multiple whitish granules around the ampulla of Vater in all patients. Involvement of the site in 6 cases was only located at the second portion; lesions in the other 2 cases were located at the second portion, and at the third portion or fourth portion, respectively. A histological study showed follicular lymphoma grade 1, and an immunohistological study demonstrated that the lymphoma cells were positive for CD79a, CD10, CD20, and bcl-2. Five patients were positive for the FISH analysis fusion signal of IgH/bcl-2 genes. Rituximab with CHOP therapy was performed for 7 patients. Seven patients are currently alive, and one died of uterine cancer. At the medium-term 39 month-follow-up, 7 patients were in complete remission, and 1 patient was in partial remission. Rituximab with CHOP (CVP) therapy is a possible treatment for primary follicular lymphoma in the duodenum. Further consideration of appropriate therapy for this disease might be necessary.
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Affiliation(s)
- Takayuki Tsujioka
- Division of Hematology, Department of Medicine, Kawasaki Medical School
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36
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Kume T, Okura H, Kawamoto T, Akasaka T, Toyota E, Neishi Y, Watanabe N, Sukmawan R, Yamada R, Sadahira Y, Yoshida K. Assessment of the Histological Characteristics of Coronary Arterial Plaque With Severe Calcification. Circ J 2007; 71:643-7. [PMID: 17456985 DOI: 10.1253/circj.71.643] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Several studies have shown that rotational atherectomy (RA) is associated with higher rates of the slow-flow phenomenon and that ablated particles may be the possible cause. Intravascular ultrasound (IVUS) has an intrinsic limitation in assessing plaque morphology behind the calcification because of acoustic shadowing. Therefore, the purpose of this study was to investigate plaque characteristics behind severe calcification by histological examination. METHODS AND RESULTS One hundred eight coronary arterial segments from 40 human cadavers (24 males, 16 females, mean age 74+/-7 years) were examined. Serial images of IVUS were obtained and 18 severe calcified lesions were collected. Experienced observers quantitatively analyzed the lesions by computerized planimetry for fibrous, fibrofatty, calcification, and necrotic tissue area. Histologically, 15 of 18 severely calcified lesions (83%) had an extensive necrotic tissue containing large numbers of cholesterol crystals and microcalcifications; 16 of same 18 severely calcified lesions (89%) had fibrofatty tissue as well as calcification. The necrotic tissue occupied 14+/-13% and fibrofatty tissue occupied 13+/-11% of severely calcified lesions. CONCLUSION Necrotic core and fibrofatty tissue components "hidden" behind calcification might cause emboli-induced thrombus formation and distal flow disturbance during RA.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan.
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37
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Nakamura S, Ichimura K, Sato Y, Nakamura S, Nakamine H, Inagaki H, Sadahira Y, Ohshima K, Sakugawa S, Kondo E, Yanai H, Ohara N, Yoshino T. Follicular lymphoma frequently originates in the salivary gland. Pathol Int 2006; 56:576-83. [PMID: 16984613 DOI: 10.1111/j.1440-1827.2006.02011.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The aim of the present study was to examine the clinicopathological presentations of follicular lymphomas (FL) of the salivary glands, as compared to mucosa-associated lymphoid tissue (MALT) lymphomas. A total of 27 primary salivary gland lymphomas were examined: 6 FL (five, grade 1; one, grade 2); 19 MALT lymphomas; and two diffuse large B-cell lymphomas. The FL patients ranged in age from 24 to 73 years, with a mean of 49 years, which was younger than that of MALT patients (mean: 64 years; P < 0.05). Four of the six FL arose from the submandibular gland, which was the origin of only five out of a total of 19 MALT lymphomas. One FL patient was in clinical stage (CS) IE, two in CS IIE, and two in CS III and IV. As regards the MALT lymphoma patients, 13 (68%) were in CS IE and five (26%) in CS IIE. None of the FL patients had clinical diagnosis of autoimmune disease but eight MALT lymphoma patients had autoimmune disease. The present study found a relatively high incidence of FL in the salivary glands. The observed differences in age of onset, background of autoimmune disease, and lesion site suggests that the pathogenesis of FL may differ from that of MALT lymphoma.
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MESH Headings
- Adult
- Age of Onset
- Aged
- Autoimmune Diseases
- CD79 Antigens/genetics
- CD79 Antigens/metabolism
- Cell Transformation, Neoplastic/metabolism
- Cell Transformation, Neoplastic/pathology
- Female
- Gene Expression Regulation, Neoplastic
- Humans
- Lymphoma, B-Cell, Marginal Zone/etiology
- Lymphoma, B-Cell, Marginal Zone/metabolism
- Lymphoma, B-Cell, Marginal Zone/pathology
- Lymphoma, Follicular/etiology
- Lymphoma, Follicular/metabolism
- Lymphoma, Follicular/pathology
- Lymphoma, Large B-Cell, Diffuse/etiology
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/pathology
- Male
- Middle Aged
- Neprilysin/genetics
- Neprilysin/metabolism
- Oncogene Proteins, Fusion/genetics
- Oncogene Proteins, Fusion/metabolism
- Proto-Oncogene Proteins c-bcl-2/genetics
- Proto-Oncogene Proteins c-bcl-2/metabolism
- Salivary Gland Neoplasms/etiology
- Salivary Gland Neoplasms/metabolism
- Salivary Gland Neoplasms/pathology
- Salivary Glands/metabolism
- Salivary Glands/pathology
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Affiliation(s)
- Satoko Nakamura
- Department of Pathology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
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38
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Kume T, Akasaka T, Kawamoto T, Okura H, Watanabe N, Toyota E, Neishi Y, Sukmawan R, Sadahira Y, Yoshida K. Measurement of the thickness of the fibrous cap by optical coherence tomography. Am Heart J 2006; 152:755.e1-4. [PMID: 16996853 DOI: 10.1016/j.ahj.2006.06.030] [Citation(s) in RCA: 147] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2006] [Accepted: 06/06/2006] [Indexed: 10/24/2022]
Abstract
BACKGROUND Identification of the fibrous cap is important because its thickness is a major determinant of plaque vulnerability in lipid-rich plaque. Thus, a high-resolution imaging technique may be a promising method for the identification of the fibrous cap within lipid-rich plaque. The purpose of this study was to investigate the feasibility of using optical coherence tomography (OCT) to measure the thickness of the fibrous cap within lipid-rich plaque. METHODS AND RESULTS We examined 35 lipid-rich plaques from 102 coronary arterial segments of 38 human cadavers (22 men and 16 women; mean ages, 74 +/- 7 years). Optical coherence tomography and corresponding histological images were digitized for measurement of the thickness of fibrous cap, and the results between OCT and histological examination were compared. There was good correlation of the thickness of the fibrous cap between OCT and histological examination (y = 0.97x + 28.49; r = 0.90; P < .001). A Bland-Altman test showed good agreement of the thickness of the fibrous cap between OCT and histological examination (mean difference, -24 +/- 44 microm). CONCLUSIONS Optical coherence tomography provides an accurate representation of the thickness of the fibrous cap and may prove useful in assessing plaque vulnerability in lipid-rich plaque.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Kurashiki 701-0192, Japan.
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39
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Kume T, Akasaka T, Kawamoto T, Ogasawara Y, Watanabe N, Toyota E, Neishi Y, Sukmawan R, Sadahira Y, Yoshida K. Assessment of coronary arterial thrombus by optical coherence tomography. Am J Cardiol 2006; 97:1713-7. [PMID: 16765119 DOI: 10.1016/j.amjcard.2006.01.031] [Citation(s) in RCA: 330] [Impact Index Per Article: 18.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2005] [Revised: 01/02/2006] [Accepted: 01/02/2006] [Indexed: 02/06/2023]
Abstract
We analyzed optical coherence tomographic (OCT) characteristics of different types of coronary thrombi that had been confirmed at postmortem histologic examination. We examined 108 coronary arterial segments of 40 consecutive human cadavers. OCT images of red and white thrombi were obtained and the intensity property of these thrombi was analyzed. Red and white thrombi were found in 16 (17%) and 19 (18%) of the 108 arterial segments, respectively. Red thrombi were identified as high-backscattering protrusions inside the lumen of the artery, with signal-free shadowing in the OCT image. White thrombi were identified as low-backscattering projections in the OCT image. There were no significant differences in peak intensity of OCT signal between red and white thrombi (130+/-18 vs 145+/-34, p=0.12). However, the 1/2 attenuation width of the signal intensity curve, which was defined as the distance from peak intensity to its 1/2 intensity, was significantly different between red and white thrombi (324+/-50 vs 183+/- 42 microm, p<0.0001). A cut-off value of 250 microm in the 1/2 width of signal intensity attenuation can differentiate white from red thrombi with a sensitivity of 90% and specificity of 88%. We present the first detailed description of the characteristics of different types of coronary thrombi in OCT images. Optical coherence tomography may allow us not only to estimate plaque morphology but also to distinguish red from white thrombi.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan.
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40
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Kume T, Akasaka T, Kawamoto T, Watanabe N, Toyota E, Neishi Y, Sukmawan R, Sadahira Y, Yoshida K. Assessment of coronary arterial plaque by optical coherence tomography. Am J Cardiol 2006; 97:1172-5. [PMID: 16616021 DOI: 10.1016/j.amjcard.2005.11.035] [Citation(s) in RCA: 202] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2005] [Revised: 11/01/2005] [Accepted: 11/01/2005] [Indexed: 01/08/2023]
Abstract
The purpose of this study was to analyze the ability of optical coherence tomography (OCT) to identify coronary arterial plaque diagnosed by histologic examination. We examined 166 sections from 108 coronary arterial segments of 40 consecutive human cadavers (24 men and 16 women; mean age 74 +/- 7 years). The plaque type was classified as fibrous (n = 43), fibrocalcific (n = 82), or lipid-rich (n = 41). The accuracy of OCT and intravascular ultrasound (IVUS) in characterizing the plaque type was studied, with the histologic consensus diagnosis serving as the gold standard. OCT, as well as IVUS, had high sensitivity and specificity for characterizing the different types of atherosclerotic plaque. OCT had a higher sensitivity for characterizing lipid-rich plaques than IVUS (85% vs 59%, p = 0.03). In conclusion, the high resolution of OCT permitted evaluation of lipid-rich plaques more accurately than IVUS.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan.
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41
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42
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Yamashita K, Urakami A, Kubozoe T, Ikeda M, Hirabayashi Y, Yamamura M, Iki K, Akiyama T, Matsumoto H, Hirai T, Sadahira Y, Tsunoda T. In vitro detection of cross-resistant and non-cross-resistant agents with fluorouracil for patients with colorectal cancer. Int J Clin Oncol 2006; 10:328-32. [PMID: 16247659 DOI: 10.1007/s10147-005-0509-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2004] [Accepted: 05/24/2005] [Indexed: 12/27/2022]
Abstract
BACKGROUND Fluorouracil-based chemotherapy, such as that with 5-fluorouracil (5-FU)/leucovorin, is standard as first-line chemotherapy for advanced colorectal cancer (CRC) in Japan. However, the best agent for second-line chemotherapy after fluorouracil failure is yet to be determined. This study was undertaken to find an appropriate agent for second-line chemotherapy. METHODS Seventy-five tumor specimens from CRC patients with no prior chemotherapy were obtained operatively and their chemosensitivity to five anticancer agents; i.e., 5-FU, mitomycin C (MMC), cisplatin, docetaxel, and an active metabolite of irinotecan (SN-38), was analyzed in an in vitro chemosensitivity test. In this method, the degree of chemosensitivity was expressed as the percent T/C ratio, where T was the total volume of the tumor colonies in the treated group and C was that of the control group. Pearson's correlation coefficients were used to assess the relationship between two agents. RESULTS Fifty-eight specimens (colon, 28; rectum, 30) were successfully analyzed. Positive correlations with 5-FU chemosensitivity were verified for the chemosensitivity of MMC, cisplatin, and docetaxel. No correlation with 5-FU chemosensitivity was verified for SN-38 chemosensitivity. Although the functional mechanism of each of the agents differs from that of 5-FU, with the exception of irinotecan, they all had a spectrum closely similar to the 5-FU spectrum. CONCLUSION Only irinotecan exhibited a spectrum independent of that of 5-FU, thus indicating that it could be an appropriate agent for second-line chemotherapy after fluorouracil failure.
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Affiliation(s)
- Kazuki Yamashita
- Department of Surgery, Division of Gastroenterology, Kawasaki Medical School, 577 Matsushima, Kurashiki 701-0192, Japan.
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43
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Mikami M, Sadahira Y, Haga A, Otsuki T, Wada H, Sugihara T. Hypoxia-inducible factor-1 drives the motility of the erythroid progenitor cell line, UT-7/Epo, via autocrine motility factor. Exp Hematol 2005; 33:531-41. [PMID: 15850830 DOI: 10.1016/j.exphem.2005.01.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2004] [Revised: 01/26/2005] [Accepted: 01/27/2005] [Indexed: 11/13/2022]
Abstract
OBJECTIVE It is well known that hypoxic stress strongly enhances erythropoiesis, but the effect of hypoxia on erythroid progenitors has not been examined precisely. In the present study, using the erythropoietin-dependent cell line UT-7/Epo, which has characteristics of erythroid progenitors, we investigated a novel role of hypoxia in erythropoiesis. METHODS UT-7/Epo and four other hematopoietic and lymphoid cell lines (HL-60, THP-1, Raji, and CEM) were cultured in 20%, 5%, or 1% O2. Morphology was observed under a phase-contrast microscope. Cell motility was evaluated using the Transwell migration assay. An analysis of the protein level of hypoxia-inducible factor-1 (HIF-1) alpha and autocrine motility factor (AMF) was conducted using Western blotting and immunocytochemistry, respectively. Reverse transcription polymerase chain reaction was performed to evaluate the expression of AMF mRNA. Human bone marrow stromal cells were used in cocultures with UT-7/Epo. Apoptosis of UT-7/Epo was examined by immunocytochemistry using an antiactive form of caspase 3 antibody. RESULTS Among the five cell lines, UT-7/Epo exhibited active pseudopodial extension in hypoxia (1% O2), and cell motility was increased. HL-60, THP-1, Raji, and CEM did not show an increase in cell motility even in 1% O2. In addition, expression of the alpha-subunit of HIF-1 was activated by hypoxia, and expression of the mRNA and protein of AMF induced by HIF-1, increasing cell motility, was promoted. The addition of an HIF-1 inhibitor, cadmium chloride (CdCl2), or alpha-ketoglutarate (2-oxoglutarate) decreased the AMF mRNA expression, and an AMF inhibitor, erythrose 4-phosphate, decreased the cell motility. When UT-7/Epo was cocultured with human bone marrow-derived stromal cells that significantly inhibit the apoptosis of UT-7/Epo, the migration of UT-7/Epo under the stromal cells (pseudoemperipolesis) was increased in hypoxia. CONCLUSION Under hypoxic conditions, erythroid progenitors may exhibit active migration in the bone marrow and the opportunity for contact with stromal cells increases, inhibiting apoptosis.
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Affiliation(s)
- Makoto Mikami
- Division of Hematology, Department of Medicine, Kawasaki Medical School, Kurashiki, Japan
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44
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Matsumoto H, Koga H, Honda K, Sadahira Y, Suetugu Y, Mikami M, Nakanishi H, Yata KI, Wada H, Sugihara T, Haruma K. Characterization of secondary GI lesions with anaplastic large-cell (Ki-1) lymphoma: a first report of two cases. Gastrointest Endosc 2005; 61:607-9. [PMID: 15812421 DOI: 10.1016/s0016-5107(04)02785-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- Hiroshi Matsumoto
- Division of Gastroenterology, Department of Internal Medicine, Kawaski Medical School, Okayama, Japan
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45
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Mikami M, Sadahira Y, Suetsugu Y, Wada H, Sugihara T. Monocyte/Macrophage-specific marker CD163+ histiocytic sarcoma: case report with clinical, morphologic, immunohistochemical, and molecular genetic studies. Int J Hematol 2005; 80:365-9. [PMID: 15615263 DOI: 10.1532/ijh97.04064] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
We report a case of a very rare disorder, histiocytic sarcoma, from a review of our autopsy cases. The neoplastic cells that proliferated in organs throughout the body were large cells containing eosinophilic cytoplasm and pleomorphic nuclei with prominent nucleoli. In the bone marrow, erythrophagocytosis by neoplastic cells was observed. The neoplastic cells were positive not only for lysozymes and CD68 (KP-1, PG-M1, and Ki-M1P) but also for a monocyte/macrophage-specific marker, CD163. In contrast, the results of tests for markers of myeloid cells, lymphoid cells, and epithelial cells were all negative. In a polymerase chain reaction study of paraffin-embedded tissues, analyses for the rearrangement of immunoglobulin heavy chain and T-cell receptor-gamma genes were negative. The current World Health Organization diagnostic criteria for histiocytic sarcoma regard immunohistochemical investigation as crucial. In this regard, the highly specific positivity for CD163 in this patient indicates that immunohistochemical staining of CD163 is very useful for the diagnosis of histiocytic sarcoma.
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Affiliation(s)
- Makoto Mikami
- Department of Medicine, Kawasaki Medical School, Kurashiki, Japan
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46
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Abstract
Optical coherence tomography (OCT) has recently been proposed as a high-resolution imaging method. Our male patient, who had been treated with a coronary stent, died due to acute leukemia. Coronary artery images using intravascular ultrasound (IVUS) and OCT were obtained postmortem. We also compared the image of neointima formation after stent implantation evaluated by histopathological examination with that evaluated by IVUS and OCT. OCT visualized well-apposed stent struts and neointima formation, which could not be visualized completely by IVUS. OCT may be useful for monitoring structural changes after stent implantation.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Okayama, Japan
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47
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Kume T, Akasaka T, Kawamoto T, Watanabe N, Toyota E, Neishi Y, Sukmawan R, Sadahira Y, Yoshida K. Assessment of Coronary Intima - Media Thickness by Optical Coherence Tomography Comparison With Intravascular Ultrasound. Circ J 2005; 69:903-7. [PMID: 16041157 DOI: 10.1253/circj.69.903] [Citation(s) in RCA: 158] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Optical coherence tomography (OCT) is a new imaging method. With a resolution of approximately 10-20 Em, which is approximately 10-fold higher than that of intravascular ultrasound (IVUS). METHODS AND RESULTS This study compared the coronary intima - media thickness (IMT) and the intimal thickness of 54 coronary arterial segments evaluated by histological examination with the results of OCT and IVUS. There was better agreement in IMT between OCT and histological examination than between IVUS and histological examination (r = 0.95, p < 0.001, mean difference = -0.01+/-0.07 mm for OCT; r = 0.88, p < 0.001, mean difference = -0.03+/-0.10 mm for IVUS). There was good agreement in the intimal thickness between OCT and histological examination (r = 0.98, p < 0.001, mean difference = 0.01+/-0.04 mm). CONCLUSIONS IMT could be measured more accurately by OCT than IVUS. In addition, the intimal thickness could be evaluated by OCT and correlated well with the histological examination.
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Affiliation(s)
- Teruyoshi Kume
- Department of Cardiology, Kawasaki Medical School, Kurashiki, Japan.
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48
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Otsuki T, Yata K, Takata-Tomokuni A, Hyodoh F, Miura Y, Sakaguchi H, Hatayama T, Hatada S, Tsujioka T, Sato Y, Murakami H, Sadahira Y, Sugihara T. Expression of protein gene product 9.5 (PGP9.5)/ubiquitin-C-terminal hydrolase 1 (UCHL-1) in human myeloma cells. Br J Haematol 2004; 127:292-8. [PMID: 15491288 DOI: 10.1111/j.1365-2141.2004.05205.x] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The neuron cytoplasmic protein gene product 9.5 (PGP9.5)/ubiquitin-C-terminal hydrolase 1 (UCHL-1) protein is a thiol protease that recognizes and hydrolyzes a peptide bond at the C-terminal of ubiquitin, and is involved in the processing of ubiquitin precursors and ubiquinated proteins. Although this molecule is known as a specific tissue marker for the neuroendocrine system, many reports have indicated that PGP9.5 is a marker for certain tumour types, such as cancer of the lung, colon, and pancreas. The expression of PGP9.5 in myeloma cells was examined. PGP9.5 seemed to be expressed specifically in myeloma cells as compared with other haematological malignant cells. In addition, in myeloma cells subjected to growth-factor starvation, the upregulation of PGP9.5 was observed in association with that of p27(Kip1), a cyclin-dependent-kinase inhibitor, although the upregulation caused by irradiation was milder. In contrast, the hypoxic culture of myeloma cells induced down-regulation of PGP9.5. These results suggested that PGP9.5 may be a good marker for myeloma among haematological malignancies. In addition, it may indicate certain cellular features of myeloma cells, such as sensitivity to proteasome inhibitors.
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Affiliation(s)
- T Otsuki
- Department of Hygiene, Kawasaki Medical School, 577 Matsushima, Kurashiki, Japan.
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Tsujioka T, Wada H, Suemori S, Sadahira Y, Sugihara T. [CD56-positive peripheral T-cell lymphoma primarily presenting with tonsillar swelling]. Rinsho Ketsueki 2004; 45:1119-23. [PMID: 15553048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
A 51-year-old woman was admitted to our hospital with tonsillar swelling. After tonsillectomy was performed, she was diagnosed as having CD56-positive T-cell lymphoma, mainly composed of small and medium-sized atypical cells. An immunohistochemical study showed that the malignant lymphocytes were positive for CD3, CD8, CD56, TIA-1 and granzyme B, while negative for CD20, CD5 and CD10. Flowcytometry demonstrated the lymphocytes were positive for CD56. Southern blot analysis revealed a rearrangement of the T-cell receptor gamma chain. The disease stage by Ann Arbor staging classification was II B. We provided MCEC therapy followed by autologous peripheral blood stem cell transplantation, and complete remission (CR) was achieved. Two months after CR, however, the patient relapsed with peritonitis due to perforation of an ileal tumor, and died of sepsis. It is rare for CD56-positive T-cell lymphoma to occur primarily in the tonsils. Because small bowel ulcers were revealed during the course of induction chemotherapy, we report a valuable case in which suspected CD56-positive enteropathy-type T-cell lymphoma (ETL) occurred primarily in the tonsils.
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Affiliation(s)
- Takayuki Tsujioka
- Division of Hematology, Department of Medicine, Kawasaki Medical School
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50
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Sakugawa ST, Yoshino T, Nakamura S, Inagaki H, Sadahira Y, Nakamine H, Okabe M, Ichimura K, Tanimoto M, Akagi T. API2-MALT1 fusion gene in colorectal lymphoma. Mod Pathol 2004; 16:1232-41. [PMID: 14681324 DOI: 10.1097/01.mp.0000097283.47637.58] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
The API2-MALT1 fusion gene was originally identified from a t(11;18)(q21;q21) translocation, a specific chromosomal abnormality that is found in mucosa-associated lymphoid tissue (MALT) lymphoma. Gastric MALT lymphomas positive for the API2-MALT1 fusion gene do not respond to Helicobacter pylori-eradication therapy, but otherwise, the incidence and clinicopathological behavior of colorectal MALT lymphoma with this genetic abnormality are unclear. We examined the API2-MALT1 fusion by multiplex RT-PCR method in 47 cases of MALT lymphoma and 13 cases of diffuse large B-cell lymphoma and evaluated the relevance of API2-MALT1 positivity to the clinical and pathological features. The mean ages of MALT lymphoma and diffuse large B-cell lymphoma patients were 65 (range, 37-87 y) and 58 (range, 14-85 y) years, respectively. API2-MALT1 fusion genes were detected in seven cases (15%) of MALT lymphoma and one case (8%) of diffuse large B-cell lymphoma. In MALT lymphomas, the tumor size in API2-MALT1-positive cases was 62 +/- 39 mm (mean +/- SD), statistically larger than that in API2-MALT1-negative cases (25 +/- 19 mm; P <.01). The API2-MALT1-positive cases demonstrated more advanced clinical stages and a male predominance, compared with API2-MALT1-negative cases. Thus, API2-MALT1-positive tumors should be cared for as a more aggressive subgroup and be followed for a longer time.
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MESH Headings
- Adaptor Proteins, Signal Transducing
- Adult
- Aged
- Aged, 80 and over
- B-Cell CLL-Lymphoma 10 Protein
- Colorectal Neoplasms/genetics
- Colorectal Neoplasms/metabolism
- Colorectal Neoplasms/pathology
- Female
- Humans
- Immunohistochemistry
- Lymphoma, B-Cell/genetics
- Lymphoma, B-Cell/metabolism
- Lymphoma, B-Cell/pathology
- Lymphoma, B-Cell, Marginal Zone/genetics
- Lymphoma, B-Cell, Marginal Zone/metabolism
- Lymphoma, B-Cell, Marginal Zone/pathology
- Lymphoma, Large B-Cell, Diffuse/genetics
- Lymphoma, Large B-Cell, Diffuse/metabolism
- Lymphoma, Large B-Cell, Diffuse/pathology
- Male
- Middle Aged
- Neoplasm Proteins/analysis
- Neoplasm Staging
- Oncogene Proteins, Fusion/genetics
- RNA, Neoplasm/genetics
- RNA, Neoplasm/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
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Affiliation(s)
- Sumie Takase Sakugawa
- Department of Pathology, Okayama University Graduate School of Medicine and Dentistry, Okayama, Japan
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