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Kuranobu H, Murakami J, Kuranobu N, Okamoto K, Murayama K, Kanzaki S. Mitochondrial respiratory chain complex I deficiency causes intractable gastrointestinal symptoms. Pediatr Int 2016; 58:1337-1340. [PMID: 28008731 DOI: 10.1111/ped.13080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/24/2015] [Revised: 05/06/2016] [Accepted: 06/06/2016] [Indexed: 10/20/2022]
Abstract
We report the case of a 13-month-old girl with frequent vomiting, intractable diarrhea, hyperlactatemia, and liver dysfunction. Although the symptoms were treatment resistant, enteral nutrition formula containing medium-chain triglycerides reduced the weight loss, vomiting, and diarrhea. Immunostaining of mitochondrial respiratory chain (MRC) complexes of the colonic mucosa confirmed the diagnosis of MRC complex I deficiency. This case shows that this disease should be included in the differential diagnosis of hyperlactatemia and intractable, cryptogenic gastrointestinal symptoms. In addition, the mucosa of the affected gastrointestinal organ should be analyzed on immunostaining or electron microscopy for MRC complexes.
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Russell WJ, Higashi Y, Fukuya T, Hosoda Y, Murakami J, Kawashima A, Murayama S, Ohuchida T, Mihara F, Takagi M, Fujita S. Ultrasonographic Abdominal Screening of Atomic Bomb-Exposed Subjects. Acta Radiol 2016. [DOI: 10.1177/028418519403500211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Abdominal ultrasonographic screening for cancer was performed in 6001 Hiroshima and Nagasaki A-bomb exposed and comparison subjects, all members of the Adult Health Study of the Radiation Effects Research Foundation, formerly the Atomic Bomb Casualty Commission. This study yielded 20 cancers, including 7 hepatocellular, 3 gastric, 3 renal and 2 urinary bladder cancers; one cancer each of the ovary, pancreas, colon and ureter; and one cancer metastatic to the liver, whose primary was unknown. Seventeen of these 20 subjects manifested no symptoms or signs of their disease. A variety of additional tumors, unproven and probably benign, including uterine myomata, and other abnormalities were also detected. Abdominal ultrasonographic screening greatly assisted in the detection of cancers, most of which neither the patients nor their physicians were aware. In this screened fixed population sample the cancer detection rate was 0.33%, exceeding any such rates previously reported in the medical literature.
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Hayabuchi N, Russell W, Murakami J. Problems in Radiographic Detection and Diagnosis of Lung Cancer. Acta Radiol 2016. [DOI: 10.1177/028418518903000209] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
All chest radiographs of 107 proven lung cancer patients who received consecutive biennial chest radiography were reviewed to elucidate problems detecting their cancers, and diagnosing them when initially radiographically detected. Subjects, members of a fixed population sample, originally numbered 20000 persons, 17000 of whom consistently received consecutive biennial chest radiography during examinations for late effects of atomic-bomb radiation. Among the 107 subjects, 64 had radiographic manifestations of cancer; 47 were initially correctly diagnosed; 17 were not. Eleven of the 17 were initially equivocal, diagnosable only after subsequent radiography and retrospective review of serial radiographs. Diagnostic problems consisted of 1) six detection errors with cancer images superimposed on musculoskeletal and cardiovascular structures, reducible by stereoscopic p.a. instead of single p.a. radiography; immediate tentative interpretations; and by comparing earlier with current radiographs. 2) Eight decision errors, wherein cancers mimicked other diseases, were reducible by greater index of suspicion and scrutiny during interpretations.
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Yabuuchi H, Murayama S, Murakami J, Sakai S, Hashiguchi N, Soeda H, Masuda K. Correlation of immunologic status with high-resolution CT and distributions of pulmonary tuberculosis. Acta Radiol 2016; 43:44-7. [PMID: 11972461 DOI: 10.1080/028418502127347637] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Purpose: To investigate the correlation of cluster of differentiation (CD)4 lymphocyte counts with high-resolution CT (HRCT) findings and distribution of pulmonary tuberculosis. Material and Methods: Thirty-seven bacteriologically proven pulmonary tuberculosis, clinically non-AIDS, patients underwent HRCT and CD4 lymphocyte counts in peripheral blood cells were obtained within 3 days after the CT examinations. Patients were categorized into four groups according to CD4 lymphocyte counts (A >800; B 800-500; C 500-200; D <200). HRCT findings analyzed were as follows: typical, atypical, and mixed findings of post-primary tuberculosis, common, uncommon, and mixed distribution, and number of lobes involved. Results: CD4 lymphocyte counts correlated with the degree of the mixture of atypical CT findings (ρ=0.565, p<0.001) and the degree of the mixture of uncommon distribution (ρ=0.431, p<0.01). Number of involved lobes showed no statistically significant correlation (ρ=0.209, p=0.21). Conclusion: In patients with low CD4 levels, atypical HRCT findings co-exist with typical findings, and uncommon sites are involved in addition to common sites.
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Abe T, Ishimori I, Murakami J, Kaneko I, Miura H, Kimata N, Hanafusa N, Mineshima M, Kawashima M, Nitta K, Tsuchiya K. [Roles of and Team Medical Care Involving Clinical Engineers in Blood Purification Therapy]. RINSHO BYORI. THE JAPANESE JOURNAL OF CLINICAL PATHOLOGY 2016; 64:834-841. [PMID: 30695474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Progress in medical care strongly depends on the development of pharmaceutical and medical technologies. Multi-disciplinary care by a medical team is required for the diversity of medical care. "Clinical engineering technician (CET) " is one of the national medical licenses in Japan. Many CETs are engaged in blood purification therapies. Team medical care, involving medical doctors, nurses, CETs, etc., in the hemodialysis field is useful for the early detection of complications in dialysis patients and provision of appropriate treatments. In some medical facilities, for example, progressive approaches such as appropriate nutritional guidance by a dietitian or exercise therapy by a physical therapist are practiced in advance. Clinical laboratory technologists (CLTs), furthermore, play an important role in team medical care for dial- ysis therapy. They can use ultrasonic equipment for vascular access management. Based on the results of the ABI and SPP measurements by CLTs, medical doctors can diagnose PAD in dialysis patients. [Review].
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Suzuki M, Tajiri H, Tanaka Y, Takano T, Miyoshi Y, Murakami J, Shimizu T, Brooks S. Peginterferon Therapy in Children With Chronic Hepatitis C: A Nationwide, Multicenter Study in Japan, 2004-2013. J Pediatr Gastroenterol Nutr 2016; 63:88-93. [PMID: 26825765 DOI: 10.1097/mpg.0000000000001120] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
OBJECTIVES The aim of the present study was to review the medical treatment of Japanese children and adolescents with chronic hepatitis C in the past 10 years. METHODS This nationwide, multicenter study evaluated patients who were younger than 18 years of age when diagnosed with chronic hepatitis C virus (HCV) infection and were treated with pegylated interferon (PEG-IFN) monotherapy or PEG-IFN/ribavirin (RBV) combination therapy between 2004 and 2013. The subjects' median age was 10 (3-18) years, with a male to female ratio of 52:50 and a genotype-1 to genotype-2 ratio of 45:57. Among the 102 patients, 18 received PEG-IFN monotherapy and 84 received PEG-IFN/RBV combination therapy. The IL28B genotype polymorphism was analyzed in patients infected with genotype-1. RESULTS In patients with HCV genotype-1 infections, sustained virological response (SVR) rates obtained by PEG-IFN monotherapy and by PEG-IFN/RBV combination therapy were 100% (2/2) and 72% (31/43), respectively. In patients with HCV genotype-2 infections, SVRs were 75% (12/16) and 100% (41/41), respectively. In 32 genotype-1 patients available for the IL28B genotype (rs8099917), SVR was achieved in more patients in the IL28B major allele group than in the minor allele group (15/17 vs 7/15, P = 0.021) after PEG-IFN/RBV combination therapy. The frequencies of adverse events were similar between the treatment regimens. CONCLUSIONS Overall, both therapies showed encouraging results, and were reasonably safe in children and adolescents with chronic hepatitis C. The IL28B genotype was useful for predicting the treatment response to PEG-IFN/RBV combination therapy in this cohort.
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Sugianto I, Konouch H, Hara M, Fujita M, Hisatomi M, Murakami J, Okada S, Asaumi J. Collision tumor of Small Cell Carcinoma and Squamous Cell Carcinoma of maxillary sinus. JOURNAL OF DENTOMAXILLOFACIAL SCIENCE 2016. [DOI: 10.15562/jdmfs.v1i1.65] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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Murakami J, Kaneko I, Kimata N, Mineshima M, Akiba T. Problems in the evaluation of polyvinylpyrrolidone (PVP) elution from polysulfone membrane dialyzers sterilized by gamma-ray irradiation. RENAL REPLACEMENT THERAPY 2016. [DOI: 10.1186/s41100-016-0047-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Takizawa A, Ishimori I, Murakami J, Kaneko I, Kimata N, Mineshima M, Tsuchiya K, Nitta K, Akiba T. SP413EFFECT OF DIFFERENCES IN DISINFECTION METHODS ONTHE DURABILITY OF ENDOTOXIN-RETENTIVE FILTERS. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw170.20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Abe T, Otsubo S, Kimata N, Okajima T, Otani Y, Murakami J, Kaneko I, Miwa N, Mineshima M, Tsuchiya K, Akiba T, Nitta K. MP410A DECREASE OF THE ANKLE-BRACHIAL PRESSURE INDEX (ABI) IS THE IMPORTANT RISK FACTORS FOR MORTALITY IN LONG-TERM DIALYSIS PATIENTS. Nephrol Dial Transplant 2016. [DOI: 10.1093/ndt/gfw191.14] [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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Masaki Y, Kawabata H, Takai K, Kojima M, Tsukamoto N, Ishigaki Y, Kurose N, Ide M, Murakami J, Nara K, Yamamoto H, Ozawa Y, Takahashi H, Miura K, Miyauchi T, Yoshida S, Momoi A, Awano N, Ikushima S, Ohta Y, Furuta N, Fujimoto S, Kawanami H, Sakai T, Kawanami T, Fujita Y, Fukushima T, Nakamura S, Kinoshita T, Aoki S. Proposed diagnostic criteria, disease severity classification and treatment strategy for TAFRO syndrome, 2015 version. Int J Hematol 2016; 103:686-92. [PMID: 27084250 DOI: 10.1007/s12185-016-1979-1] [Citation(s) in RCA: 145] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2016] [Revised: 03/04/2016] [Accepted: 03/06/2016] [Indexed: 01/09/2023]
Abstract
TAFRO syndrome is a systemic inflammatory disorder characterized by thrombocytopenia, anasarca including pleural effusion and ascites, fever, renal insufficiency, and organomegaly including hepatosplenomegaly and lymphadenopathy. Its onset may be acute or sub-acute, but its etiology is undetermined. Although several clinical and pathological characteristics of TAFRO syndrome resemble those of multicentric Castleman disease (MCD), other specific features can differentiate between them. Some TAFRO syndrome patients have been successfully treated with glucocorticoids and/or immunosuppressants, including cyclosporin A, tocilizumab and rituximab, whereas others are refractory to treatment, and eventually succumb to the disease. Early and reliable diagnoses and early treatments with appropriate agents are essential to enhancing patient survival. The present article reports the 2015 updated diagnostic criteria, disease severity classification and treatment strategy for TAFRO syndrome, as formulated by Japanese research teams. These criteria and classification have been applied and retrospectively validated on clinicopathologic data of 28 patients with this and similar conditions (e.g. MCD with serositis and thrombocytopenia).
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Kuranobu N, Murakami J, Okamoto K, Nishimura R, Murayama K, Takamura A, Umeda T, Eto Y, Kanzaki S. Cholesterol ester storage disease with a novel LIPA mutation (L264P) that presented massive hepatomegaly: A case report. Hepatol Res 2016; 46:477-82. [PMID: 26385844 DOI: 10.1111/hepr.12574] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2015] [Revised: 08/11/2015] [Accepted: 08/11/2015] [Indexed: 12/13/2022]
Abstract
Cholesterol ester storage disease (CESD) is an autosomal recessive disorder caused by deficient lysosomal acid lipase (LAL) activity, resulting in cholesteryl ester (CE) accumulation. CESD patients have liver disease associated with mixed dyslipidemia leading to liver failure. We here report the case of an 11-year-old male CESD patient with a novel mutation who had the chief complaint of massive hepatomegaly. The patient's liver reached to his pelvis, and his spleen was 2 cm below the costal margin. The patient had elevated serum liver enzymes and mixed dyslipidemia. The liver biopsy tissue showed characteristic CESD pathology, which included microvesicular steatosis, mild fibrosis and foamy macrophages. Electron microscopy showed a remnant cleft of CE crystals, and dried blood spot testing showed reduced LAL activity. We identified compound heterozygous mutations in the LIPA gene in this patient, namely, c.607G>C and c.791T>C. The former mutation was previously reported only in a Japanese patient, whereas the latter mutation is novel. The findings of this study suggest that LIPA gene mutations in Japanese CESD patients are different from those in Western patients. Although CESD is rare, it is likely that many patients are unrecognized or misdiagnosed, and thus the possibility of CESD should be considered in patients with hepatosplenomegaly and dyslipidemia.
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Murakami J, Wakai N, Toshitaka I, Youji T, Tadashi Y, Satoshi F, Tamamoto T, Hasegawa M. Direct Impact Analysis of Multileaf Collimator Leaf Position Error on Dose Error in Off-Axis and Distributions With Flattening Filter Free Beam. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wakai N, Murakami J, Asakawa I, Tamamoto T, Morimoto Y, Inoue K, Shimoda E, Inoue M, Morimoto M, Hasegawa M. The Tolerance Level of Leaf Gap Accuracy for Intensity-Modulated Radiation Therapy with Flattening Filter Free Beam. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.2142] [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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Abe M, Takeshima N, Matoda M, Hirashima Y, Takekuma M, Takahashi N, Tanaka A, Kuji S, Kado N, Kasamatsu Y, Itamochi H, Furuya K, Ichikawa Y, Kai K, Itonaga Y, Hirakawa T, Nasu K, Miyagi K, Murakami J, Ito K. 1579 Efficacy and safety of olanzapine combined with aprepitant, palonosetron, and dexamethasone for preventing nausea and vomiting induced by cisplatin-based chemotherapy in gynecological cancer: Comparison of two prospective phase II trials. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)30668-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Komatsu H, Inui A, Fujisawa T, Takano T, Tajiri H, Murakami J, Suzuki M. Transmission route and genotype of chronic hepatitis B virus infection in children in Japan between 1976 and 2010: A retrospective, multicenter study. Hepatol Res 2015; 45:629-37. [PMID: 25069950 DOI: 10.1111/hepr.12396] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/27/2014] [Revised: 07/04/2014] [Accepted: 07/24/2014] [Indexed: 12/14/2022]
Abstract
AIM The aim of this study was to clarify the trends of the infectious source of chronic hepatitis B virus (HBV) infection and the HBV genotype in the Japanese pediatric population over the last three decades. METHODS The present study was a retrospective, nationwide, multicenter study. Patients who were under 20 years of age when diagnosed with chronic HBV infection were eligible for enrollment in this study. A total of 430 patients (male/female, 256/174; age at the time of writing, 1-37 years; median age, 14 years; birth year, 1976-2010) from 11 hospitals were evaluated. RESULTS The incidence of chronic HBV infection from 1976 to 1980, 1981-1985, 1986-1990, 1991-1995, 1996-2000, 2001-2005 and 2006-2010 was 56, 52, 34, 37, 81, 92 and 78, respectively. Of the 430 patients, 304 (71%), 61 (14%), 11 (3%) and 54 (13%) were infected via mother-to-child transmission, close contact, blood transfusion and unknown source, respectively. After the introduction of perinatal immunoprophylaxis, the rate of mother-to-child transmission increased from 62% during the 1991-1995 period to 86% during the 2006-2010 period. The distributions of genotypes A, B, C, D and F were 3%, 9%, 86%, 2% and 1%, respectively. No obvious change was observed in the distribution of genotypes. Genotype C was significantly associated with mother-to-child transmission. CONCLUSION Mother-to-child transmission remains the primary source of chronic HBV infection after the introduction of immunoprophylaxis. Taking measures to prevent immunoprophylaxis failure is essential to reduce pediatric chronic HBV infection in Japan.
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Wada A, Ito A, Iitsuka H, Tsuneyama K, Miyazono T, Murakami J, Shibahara N, Sakurai H, Saiki I, Nakayama T, Yoshie O, Koizumi K, Sugiyama T. Role of chemokine CX3CL1 in progression of multiple myeloma via CX3CR1 in bone microenvironments. Oncol Rep 2015; 33:2935-9. [PMID: 25962684 DOI: 10.3892/or.2015.3941] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2015] [Accepted: 03/02/2015] [Indexed: 11/06/2022] Open
Abstract
Several chemokines/chemokine receptors such as CXCL12, CCL3, CXCR4 and CCR1 attract multiple myelomas to specific microenvironments. In the present study, we investigated whether the CX3CL1/CX3CR1 axis is involved in the interaction of the multiple myeloma cells with their microenvironment. The expression of CX3CR1 (also known as fractalkine) was detected in three of the seven human myeloma cell lines. CX3CL1-induced phosphorylation of Akt and ERK1/2 was detected in the CX3CR1-positive cell lines, but not in the CX3CR1-negative cell lines. In addition, CX3CL1-induced cell adhesion to fibronectin and vascular cell adhesion molecule-1 (VCAM-1) in the human myeloma RPMI-8226 cell line. We also investigated whether a relationship existed between myeloma cells and osteoclasts that may function via the CX3CL1/CX3CR1 axis. Conditioned medium from CX3CL1-stimulated RPMI-8226 cells drastically increased the osteoclast differentiation. Collectively, the results from the present study support the concept of the CX3CL1-mediated activation of the progression of the multiple myeloma via CX3CR1. Thus, CX3CR1 may represent a potential therapeutic target for the treatment of multiple myeloma in a bone microenvironment.
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Komatsu H, Murakami J, Inui A, Tsunoda T, Sogo T, Fujisawa T. Association between single-nucleotide polymorphisms and early spontaneous hepatitis B virus e antigen seroconversion in children. BMC Res Notes 2014; 7:789. [PMID: 25376093 PMCID: PMC4230755 DOI: 10.1186/1756-0500-7-789] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2014] [Accepted: 10/24/2014] [Indexed: 12/12/2022] Open
Abstract
Background The disease progression following hepatitis B virus (HBV) infection is associated with single-nucleotide polymorphisms (SNPs). However, the role of SNPs in chronic HBV infection in children remains unclear. Here, we investigate the association between SNPs and early spontaneous hepatitis B e antigen (HBeAg) seroconversion in children with chronic hepatitis B infection. Methods This was a retrospective cohort study. We genotyped seven SNPs in the following genes, interleukin (IL)-10 (rs1800871 and rs1800872), human leukocyte antigen (HLA)-DPA1 (rs3077), HLA-DPB1 (rs9277535), HLA-DQB2 (rs7453920), HLA-DQB1 (rs2856718), and IL28B (rs8099917), in patients with chronic HBV infection using PCR and sequencing. These variants were analyzed for an association with early HBeAg seroconversion in children. Results Of 225 Japanese patients with chronic hepatitis B virus infection (male/female: 105/120, median age at initial visit: 6 years; range 0–44 years), 52 achieved spontaneous HBeAg seroconversion at the age of 10 years or younger (G1: early seroconversion group), and 57 did not achieve spontaneous HBeAg seroconversion under the age of 20 years (G2: late or no seroconversion group). Of the seven SNPs, only the HLA-DPA1 SNP displayed a low p-value (P = 0.070), but not significant, to have early HBeAg seroconversion in the dominant model and in the allele model (P = 0.073) using the chi-square test. The association study found a low p-value, but not significant, to have early HBeAg seroconversion in the dominant model for HLA-DPA1 (genotype TC + TT vs. CC, P = 0.070, odds ratio: 2.016, 95% confidence interval: 0.940-4.323) using a logistic regression model. Conclusion Although the HLA-DPA1 SNP did not show a statistically significant association with early HBeAg seroconversion in this study, the HLA-DPA1 SNP might increase the likelihood of achieving early spontaneous HBeAg seroconversion in children.
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Kida-Takaoka S, Yamaai T, Mizukawa N, Murakami J, Iida S. Surrounding cells affect the gene expression pattern of human beta-defensins in squamous cell carcinoma in vitro. Anticancer Res 2014; 34:6443-6449. [PMID: 25368244] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
BACKGROUND/AIM Defensins are basic peptides involved in non-immune bio-defense mechanisms in a normal epithelium. Human oral squamous cell carcinoma cells (OSCC) also produce human beta-defensins (HBDs), although their exact function is not clear. This study aimed to analyze the variation in gene expression levels of hBDs in co-cultures of OSCC with murine cells. MATERIALS AND METHODS Two OSCC cell lines (HSC-3, HSC-4) were co-cultured with mouse embryonic fibroblasts, NIH/3T3 or a mouse chondrogenic cell line derived from teratocarcinoma, ATDC5, for 1.5 days. Expression patterns of the hBD genes were investigated by real-time polymerase chain reaction (RT-PCR). RESULTS hBD1 expression increased when co-cultured with NIH/3T3 but decreased when co-cultured with ATDC5. Expression of hBD2 and hBD4 tended to decrease. OSCC cells formed colonies when co-cultured with NIH/3T3 but were scattered when co-cultured with ATDC5. CONCLUSION hBDs expression in OSCC is dependent on the type of co-cultured cells and differences in gene expression may be responsible for the morphological differences observed. OSCC may produce HBDs for purposes other than bio-defense by surrounding cells.
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Kondo E, Yamamoto K, Masunari T, Miura K, Takizawa J, Masaki Y, Matsumura T, Hiramatsu Y, Murakami J, Tsujimura H, Tomita N, Maeda Y, Kanno M. Interim Analysis of an Ongoing Phase Ii Trial Assessing Safety and Efficacy of R-Idea As Salvage Therapy in Patients with Relapsed/Refractory Dlbcl: an Intergroup Study of the Society of Lymphoma Treatment in Japan (Solt-J) and the West Japan Hematology/Oncology Group (Westjhog). Ann Oncol 2014. [DOI: 10.1093/annonc/mdu339.12] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Hara M, Kuroda M, Ohmura Y, Matsuzaki H, Kobayashi T, Murakami J, Katashima K, Ashida M, Ohno S, Asaumi JI. A new phantom and empirical formula for apparent diffusion coefficient measurement by a 3 Tesla magnetic resonance imaging scanner. Oncol Lett 2014; 8:819-824. [PMID: 25013504 PMCID: PMC4081373 DOI: 10.3892/ol.2014.2187] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2013] [Accepted: 04/30/2014] [Indexed: 01/31/2023] Open
Abstract
The aim of this study was to create a new phantom for a 3 Tesla (3T) magnetic resonance imaging (MRI) device for the calculation of the apparent diffusion coefficient (ADC) using diffusion-weighted imaging (DWI), and to mimic the ADC values of normal and tumor tissues at various temperatures, including the physiological body temperature of 37°C. The phantom was produced using several concentrations of sucrose from 0 to 1.2 M, and the DWI was performed using various phantom temperatures. The accurate ADC values were calculated using the DWIs of the phantoms, and an empirical formula was developed to calculate the ADC values of the phantoms from an arbitrary sucrose concentration and arbitrary phantom temperature. The empirical formula was able to produce ADC values ranging between 0.33 and 3.02×10−3 mm2/sec, which covered the range of ADC values of the human body that have been measured clinically by 3T MRI in previous studies. The phantom and empirical formula developed in this study may be available to mimic the ADC values of the clinical human lesion by 3T MRI.
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Chamney P, Moissl U, Wabel P, Amato C, Stuard S, Menzer M, Vollmeier C, Williams G, Shrivastava R, Chess J, Catling E, Brown C, Baker E, Ashcroft R, Mikhail A, Djukanovic L, Djuric Z, Knezevic V, Lazarevic T, Ljubenovic S, Markovic R, Rabrenovic V, Marinkovic J, Dimkovic N, Lebourg L, Ridel C, De Preneuf H, Le Roy F, Petitclerc T, Wester M, Simonis F, Kooman JP, Boer WH, Gerritsen KGF, Joles JA, Yamamoto KI, Eguchi K, Hirakawa S, Murakami J, Akiba T, Mineshima M, Stamopoulos D, Mpakirtzi N, Lavranos A, Panagiotou M, Barbarousi D, Matsouka C, Grapsa E, Abbas SR, Zhu F, Kaysen GA, Kotanko P, Levin NW, Vasilevsky A, Konoplev G, Stepanova O, Rubinsky A, Zemchenkov A, Gerasimchuk R, Frorip A, Abe T, Yamamoto KI, Ishimori I, Eguchi K, Murakami J, Mineshima M, Akiba T, Kusztal M, Go Biowski, T, Letachowicz K, Koni Ski P, Witkowski G, Pozna Ski P, Weyde W, Klinger M, Ito M, Ito S, Suzuki M, Masakane I, Navarro D, Goncalves C, Ferreira AC, Jorge C, Gil C, Aires I, Matias P, Mendes M, Azevedo A, Gomes F, Ferreira A, Perazzini C, Scutiero L, Brighenti L, Surace A, Steckiph D, Rovatti P, Severi S, Soltysiak J, Warzywoda A, Musielak A, Ostalska-Nowicka D, Zachwieja J, Goeksel T, Garnier H, Ritzerfeld M, Mann H, Babinet F, Allard B, Todorova V, Hamont C, Begri R, Dekker M, Taks M, Konings C, Scharnhorst V, Borawski J, Gozdzikiewicz-Lapinska J, Naumnik B, Lodi CA, Surace A, Grandi E, Rovatti P, Mancini E, Santoro A, Sereni L, Caiazzo M, Corazza L, Atti M, Palladino G, Sakurai K, Saito T, Hosoya H, Yamauchi F, Kurihara T, Tanibayashi Y, Ikebe N, Antonic M, Gubensek J, Drozg A, Vannier E, Mattio E, Todorova V, Ragon A, Brunet P, Klimm W, Pleskacz K, Pietrzak B, Niemczyk S, Leypoldt JK, Bernardo A, Muller M, Marbury TC, Culleton BF, Zeraati AA, Hekmat R, Reyhani HR, Sharifipoor F, Bolasco P, Sitzia I, Monni A, Mereu MC, Pinna AM, Logias F, Ghisu T, Passaghe M, Gazzanelli L, Ganadu M, Piras A, Cossu M, Contu B, Palleschi S, Rossi B, Atti M, Caiazzo M, Sereni L, Palladino G, Ghezzi PM, Kron S, Schneditz D, Leimbach T, Aign S, Kron J, Seker Kockara A, Kayatas M, Huzmeli C, Candan F, Yilmaz MB, Ahmed BA, Bejosano CN, Samra Abouchacra SA, Al Falahi SZ, Abdul Moniem KM, Dastoor H, Kim S, Oh J, Sin Y, Kim J, Lee J. HAEMODIALYSIS TECHNIQUES AND ADEQUACY 2. Nephrol Dial Transplant 2014. [DOI: 10.1093/ndt/gfu173] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Murakami J, Matsui S, Ishizawa S, Arita K, Wada A, Miyazono T, Hounoki H, Shinoda K, Taki H, Sugiyama T. Recurrence of IgG4-related disease following treatment with rituximab. Mod Rheumatol 2014. [DOI: 10.3109/s10165-012-0738-2] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Katashima K, Kuroda M, Ashida M, Sasaki T, Taguchi T, Matsuzaki H, Murakami J, Yanagi Y, Hisatomi M, Hara M, Kato H, Ohmura Y, Kobayashi T, Kanazawa S, Harada S, Takemoto M, Ohno S, Mimura S, Asaumi J. In vitro assessment of factors affecting the apparent diffusion coefficient of Jurkat cells using bio-phantoms. ACTA MEDICA OKAYAMA 2013; 67:359-67. [PMID: 24356720 DOI: 10.18926/amo/52009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
It is well known that many tumor tissues show lower apparent diffusion coefficient (ADC) values, and that several factors are involved in the reduction of ADC values. The aim of this study was to clarify how much each factor contributes to decreases in ADC values. We investigate the roles of cell density, extracellular space, intracellular factors, apoptosis and necrosis in ADC values using bio-phantoms. The ADC values of bio-phantoms, in which Jurkat cells were encapsulated by gellan gum, were measured by a 1.5-Tesla magnetic resonance imaging device with constant diffusion time of 30sec. Heating at 42℃ was used to induce apoptosis while heating at 48℃ was used to induce necrosis. Cell death after heating was evaluated by flow cytometric analysis and electron microscopy. The ADC values of bio-phantoms including non-heated cells decreased linearly with increases in cell density, and showed a steep decline when the distance between cells became less than 3μm. The analysis of ADC values of cells after destruction of cellular structures by sonication suggested that approximately two-thirds of the ADC values of cells originate from their cellular structures. The ADC values of bio-phantoms including necrotic cells increased while those including apoptotic cells decreased. This study quantitatively clarified the role of the cellular factors and the extracellular space in determining the ADC values produced by tumor cells. The intermediate diffusion time of 30msec might be optimal to distinguish between apoptosis and necrosis.
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Hirai T, Murakami J, Ohara K, Matsui S, Joho S, Minemura M. [Report from the 14th Hokuriku Chapter Educational Seminar: macroglobulinemia and pulmonary hypertension]. ACTA ACUST UNITED AC 2013; 102:3253-60. [PMID: 24605578 DOI: 10.2169/naika.102.3253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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