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Kuroda K, Uchida T, Nagai S, Ozaki R, Yamaguchi T, Kato N, Sato Y, Takeda S. The impact of high serum thyroid stimulating hormone on anti-müllerian hormone levels in infertility reproductive-aged patients. Fertil Steril 2014. [DOI: 10.1016/j.fertnstert.2014.07.520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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77
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Takahashi Y, Sakurai T, Fujikawa M, Nagasaka A, Hui S, Jin S, Takeda S, Fuda H, Ito Y, Chiba H. Development of an automated assay for apoe-containing hdl-cholesterol. Atherosclerosis 2014. [DOI: 10.1016/j.atherosclerosis.2014.05.274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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78
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Kawai T, Itabashi A, Ohtake M, Takeda S, Futamoto M. Gilbert damping constant of FePd alloy thin films estimated by broadband ferromagnetic resonance. EPJ WEB OF CONFERENCES 2014. [DOI: 10.1051/epjconf/20147502002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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79
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Ismail A, Takeda S, Nick P. Life and death under salt stress: same players, different timing? JOURNAL OF EXPERIMENTAL BOTANY 2014; 65:2963-79. [PMID: 24755280 DOI: 10.1093/jxb/eru159] [Citation(s) in RCA: 154] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Salinity does not only stress plants but also challenges human life and the economy by posing severe constraints upon agriculture. To understand salt adaptation strategies of plants, it is central to extend agricultural production to salt-affected soils. Despite high impact and intensive research, it has been difficult to dissect the plant responses to salt stress and to define the decisive key factors for the outcome of salinity signalling. To connect the rapidly accumulating data from different systems, treatments, and organization levels (whole-plant, cellular, and molecular), and to identify the appropriate correlations among them, a clear conceptual framework is required. Similar to other stress responses, the molecular nature of the signals evoked after the onset of salt stress seems to be general, as with that observed in response to many other stimuli, and should not be considered to confer specificity per se. The focus of the current review is therefore on the temporal patterns of signals conveyed by molecules such as Ca(2+), H(+), reactive oxygen species, abscisic acid, and jasmonate. We propose that the outcome of the salinity response (adaptation versus cell death) depends on the timing with which these signals appear and disappear. In this context, the often-neglected non-selective cation channels are relevant. We also propose that constraining a given signal is as important as its induction, as it is the temporal competence of signalling (signal on demand) that confers specificity.
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Sato K, Takeda S, Fukuda S, Minamisono T, Tanigaki M, Miyake T, Maruyama Y, Matsuta K, Fukuda M, Nojiri Y. FT-NMR Detection of 45Sc, 49Ti and 93Nb in TiO2 Single Crystal. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1998-6-745] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
In order to determine the electric quadrupole moment of the short-lived β-emitter 41Sc from the quadrupole coupling constant in TiO2 , we measured the field gradient by detecting the Fourier-Transformed-NMR of stable isotope 45Sc doped in TiO2. Also, in order to study the electronic structure of impurities systematically, EFGs were measured for 45Sc, 49Ti and 93Nb in a TiO2 ingle single crystal.
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Minamisono T, Matsuta K, Minamisono K, Kudo S, Ogura M, Fukuda S, Sato K, Mihara M, Fukuda M, Takeda S, Zhu S. Quadrupole Moments of the 40Ca Core Plus One Nucleon Nuclei 41Sc and 41Ca. ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-2002-6-755] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The electric-field-gradient (EFG) and anisotropic chemical shift of 45Sc(Iπ = 7/2- , stable) in TiO2 crystal were determined by detecting the FT-NMR of 45Sc(0.5 atm% of Ti in TiO2) doped in TiO2 crystal at a high field of 7.0 T and 9.4 T. Using the EFG, an old β-NQR spectrum of 41Sc was reanalyzed to obtain (41Sc)/ which was combined with the renewed (45Sc) = -(23.6 0.2) fm2 to obtain (41Sc; Iπ= 7/2- , T1/2 = 0.596 s) = (15.6±0.3) fm2. Also the atomic EFG in Ca was recalculated, using a finite-element multi configuration Hartree-Fock method to renew Q(43Ca). Finally using the known hyperfine constants of 41Ca, the (41Ca) value has been renewed
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Minamisono T, Sato K, Akai H, Takeda S, Maruyama Y, Matsuta K, Fukuda M, Miyake T, Morishita A, Izumikawa T, Nojir Y. Electric Quadrupole Interactions of the Short-Lived β-Emitter 12N in Insulator Crystals (12N Implanted in Single Crystal TiO2). ACTA ACUST UNITED AC 2014. [DOI: 10.1515/zna-1998-6-706] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The electronic structure of nitrogen atoms as impurities in an ionic TiO2 crystal has been investigated by analyzing electric field gradients (EFGs) measured by use of short-lived β-emitting 12N implant-ed following nuclear reactions. Conventional β-NMR and its modification, suitable for the detection of quadrupole effects in the NMR spectra, were used for the investigation of hyperfine interactions of 12N located in substitutional sites of O atoms and interstitial sites in the crystal. In order to deduce absolute values of the EFGs from the obtained eqQ/h, the quadrupole moment of 12N has been determined from the NMR detection of 12N implanted in BN(hexagonal) crystal. Here the EFG at the N atom in BN was measured by detecting the FT-NMR of 14N in the crystal. The EFGs in TiO2 are compared with the theoretical predictions based on the ab initio band-structure calculation in the framework of the KKR method.
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Yamada S, Okumura N, Wei L, Fuchs BC, Fujii T, Sugimoto H, Nomoto S, Takeda S, Tanabe KK, Kodera Y. Epithelial to mesenchymal transition is associated with shorter disease-free survival in hepatocellular carcinoma. Ann Surg Oncol 2014; 21:3882-90. [PMID: 24833103 DOI: 10.1245/s10434-014-3779-2] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2013] [Indexed: 01/28/2023]
Abstract
BACKGROUND Epithelial to mesenchymal transition (EMT) is involved in cancer cell invasion and metastasis as well as chemoresistance. Elucidation of EMT in hepatocellular carcinoma (HCC) might contribute to deeper understanding of its biology. METHODS Overall, 100 patients with HCC, who underwent resection, were analyzed. The messenger RNA (mRNA) expression of the epithelial marker E-cadherin and the mesenchymal marker Vimentin were measured, and the EMT status of each patient was determined as follows: Vimentin/E-cadherin <2 = Epithelial (E), Vimentin/E-cadherin ≥2 = Mesenchymal (M). The correlation between these values and clinicopathological factors and prognosis were analyzed statistically. Moreover, the expression of transcription factors involved in EMT (Twist-1, Snail, Slug, Zeb-1, and Zeb-2) were measured and the role of interleukin (IL)-6 in inducing EMT and chemoresistance was examined. RESULTS Patients with a mesenchymal tumor were more prone to have an earlier recurrence than those with an epithelial tumor. EMT-inducing transcription factors were more highly expressed in mesenchymal tumors than in epithelial tumors, and Twist-1 and Zeb-2 were significantly overexpressed. α-Fetoprotein (AFP) values were significantly higher in patients with epithelial tumors, and AFP-expressing HCC cell lines were more responsive to sorafenib. IL-6 expression was significantly higher in mesenchymal tumors, and knockdown of IL-6 in mesenchymal HCC cell lines increased E-cadherin expression and sensitivity to sorafenib. CONCLUSIONS Analysis of surgically resected tumors suggests that EMT is involved in early disease recurrence in HCC. Twist-1 and Zeb-2 might be important for inducing EMT, and IL-6 might be a potential therapeutic target for alleviating the chemoresistance of mesenchymal HCC tumors.
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84
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Yamauchi M, Okubo K, Tsukuda T, Kato K, Takata M, Takeda S. Hydrogen-induced structural transformation of AuCu nanoalloys probed by synchrotron X-ray diffraction techniques. NANOSCALE 2014; 6:4067-4071. [PMID: 24608274 DOI: 10.1039/c3nr06327e] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
In situ X-ray diffraction measurements reveal that the transformation of a AuCu nanoalloy from a face-centered-cubic to an L10 structure is accelerated under a hydrogen atmosphere. The structural transformation rate for the AuCu nanoalloy under hydrogen above 433 K was found to be 100 times faster than that in a vacuum, which is the first quantitative observation of hydrogen-induced ordering of nanoalloys.
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85
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Nakajima R, Takeda S. The efficient fabrication of epidermal cell sheets using gamma-secretase inhibitor. Cytotherapy 2014. [DOI: 10.1016/j.jcyt.2014.01.315] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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86
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Hayashi M, Nomoto S, Hishida M, Inokawa Y, Kanda M, Okamura Y, Nishikawa Y, Tanaka C, Kobayashi D, Yamada S, Nakayama G, Fujii T, Sugimoto H, Koike M, Fujiwara M, Takeda S, Kodera Y. Identification of the collagen type 1 α 1 gene (COL1A1) as a candidate survival-related factor associated with hepatocellular carcinoma. BMC Cancer 2014; 14:108. [PMID: 24552139 PMCID: PMC4015503 DOI: 10.1186/1471-2407-14-108] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2013] [Accepted: 02/13/2014] [Indexed: 12/15/2022] Open
Abstract
Background Hepatocellular carcinoma (HCC) is one of the major causes of cancer-related death especially among Asian and African populations. It is urgent that we identify carcinogenesis-related genes to establish an innovative treatment strategy for this disease. Methods Triple-combination array analysis was performed using one pair each of HCC and noncancerous liver samples from a 68-year-old woman. This analysis consists of expression array, single nucleotide polymorphism array and methylation array. The gene encoding collagen type 1 alpha 1 (COL1A1) was identified and verified using HCC cell lines and 48 tissues from patients with primary HCC. Results Expression array revealed that COL1A1 gene expression was markedly decreased in tumor tissues (log2 ratio –1.1). The single nucleotide polymorphism array showed no chromosomal deletion in the locus of COL1A1. Importantly, the methylation value in the tumor tissue was higher (0.557) than that of the adjacent liver tissue (0.008). We verified that expression of this gene was suppressed by promoter methylation. Reactivation of COL1A1 expression by 5-aza-2′-deoxycytidine treatment was seen in HCC cell lines, and sequence analysis identified methylated CpG sites in the COL1A1 promoter region. Among 48 pairs of surgical specimens, 13 (27.1%) showed decreased COL1A1 mRNA expression in tumor sites. Among these 13 cases, 10 had promoter methylation at the tumor site. The log-rank test indicated that mRNA down-regulated tumors were significantly correlated with a poor overall survival rate (P = 0.013). Conclusions Triple-combination array analysis successfully identified COL1A1 as a candidate survival-related gene in HCCs. Epigenetic down-regulation of COL1A1 mRNA expression might have a role as a prognostic biomarker of HCC.
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Yamada S, Fujii T, Kanda M, Sugimoto H, Nomoto S, Takeda S, Nakao A, Kodera Y. Value of peritoneal cytology in potentially resectable pancreatic cancer. Br J Surg 2014; 100:1791-6. [PMID: 24227366 DOI: 10.1002/bjs.9307] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/02/2013] [Indexed: 11/06/2022]
Abstract
BACKGROUND Peritoneal lavage cytology (CY) is used in the diagnosis and staging of various cancers. The clinical significance of positive cytology results in patients with pancreatic cancer is yet to be determined. METHODS Peritoneal washing samples were collected from consecutive patients with pancreatic cancer between July 1991 and December 2012. The correlations between cytology results, clinicopathological parameters and recurrence patterns were evaluated. The prognostic impact of CY status, regarding resectability and the effectiveness of adjuvant chemotherapy, were analysed. RESULTS Of 523 included patients, 390 underwent resection. Patients with tumours at least 2 cm in diameter were more likely to have CY+ status than patients with tumours smaller than 2 cm (48 of 312 versus 3 of 78 respectively; P = 0·005) and there was a significant correlation between CY+ status and tumour invasion of the anterior pancreatic capsule (43 of 276 versus 8 of 113 with no invasion of the capsule; P = 0·030). Although the overall survival of patients with resected CY+ tumours was worse than that of patients with resected CY- tumours, it was significantly better than the survival of unresected patients regardless of CY status. Multivariable analysis of all patients who had pancreatectomy did not identify CY+ as an independent prognostic factor. Patients with CY+ tumours tended to develop peritoneal metastasis more often than those with CY- tumours, although not significantly so. The median survival time of 34 patients with resected CY+ tumours who received adjuvant chemotherapy was better than that of 17 patients who had surgery alone, although this was not statistically significant (15·3 versus 10·0 months; P = 0·057). CONCLUSION CY+ status is not clinically equivalent to gross peritoneal metastasis in patients with pancreatic cancer. Curative resection is still recommended regardless of CY status.
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Hori Y, Kurotani KI, Toda Y, Hattori T, Takeda S. Overexpression of the JAZ factors with mutated jas domains causes pleiotropic defects in rice spikelet development. PLANT SIGNALING & BEHAVIOR 2014; 9:e970414. [PMID: 25482801 PMCID: PMC4623050 DOI: 10.4161/15592316.2014.970414] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
In a determinate meristem, such as a floral meristem, a genetically determined number of organs are produced before the meristem is terminated. In rice, iterative formation of organs during flower development with defects in meristem determinacy, classically called 'proliferation', is caused by several mutations and observed in dependence on environmental conditions. Here we report that overexpression of several JAZ proteins, key factors in jasmonate signaling, with mutations in the Jas domains causes an increase in the numbers of organs in florets, aberrant patterns of organ formation and repetitious organ production in spikelets. Our results imply that JAZ factors modulate mechanisms that regulate meristem functions during spikelet development.
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Key Words
- JA, jasmonate
- JAZ, Jasmonate zim domain
- LSH1, Leafy hull sterile1
- MJA, methyl jasmonate
- RSS3, Rice salt sensitive 3
- RT-PCR, reverse transcription-PCR
- SAM, shoot apical meristem
- bHLH, basic helix–loop–helix
- environmental stress
- extra glume
- flower development
- jasmonate
- mJAZ, mutated JAZ
- meristem determinacy
- meristem identity
- qRT-PCR, quantitative real-time RT-PCR
- spikelet
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Morise J, Kizuka Y, Yabuno K, Tonoyama Y, Hashii N, Kawasaki N, Manya H, Miyagoe-Suzuki Y, Takeda S, Endo T, Maeda N, Takematsu H, Oka S. Structural and biochemical characterization of O-mannose-linked human natural killer-1 glycan expressed on phosphacan in developing mouse brains. Glycobiology 2013; 24:314-24. [DOI: 10.1093/glycob/cwt116] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
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90
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Suenaga M, Yamada S, Fujii T, Fuchs BC, Okumura N, Kanda M, Kobayashi D, Tanaka C, Nakayama G, Sugimoto H, Koike M, Nomoto S, Fujiwara M, Takeda S, Hayashi K, Tanabe KK, Goto H, Kodera Y. A functional polymorphism in the epidermal growth factor gene predicts hepatocellular carcinoma risk in Japanese hepatitis C patients. Onco Targets Ther 2013; 6:1805-12. [PMID: 24363559 PMCID: PMC3865974 DOI: 10.2147/ott.s53625] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023] Open
Abstract
BACKGROUND A single nucleotide polymorphism (SNP) in the epidermal growth factor (EGF) gene (rs4444903) has been associated with increased risk of cancer, including hepatocellular carcinoma (HCC). The aim of this study was to examine the relationship between the EGF SNP genotype and the development and prognosis of HCC, in a Japanese population. METHODS Restriction fragment-length polymorphism was used to determine the presence of the EGF SNP genotype in 498 patients, including 208 patients with HCC. The level of EGF messenger ribonucleic acid (mRNA) expression in cancerous tissues was measured by quantitative reverse transcription polymerase chain reaction. The correlation between the EGF SNP genotype and prognosis was statistically analyzed in the patients with HCC. RESULTS The proportion of the A/A, A/G, and G/G genotypes were 5.3%, 42.8%, and 51.9%, respectively, in the patients with HCC, whereas in those without HCC, they were 8.6%, 35.9%, and 55.5%, respectively, revealing that the odds ratio (OR) of developing HCC was higher in patients with a G allele (OR =1.94, P=0.080 for A/G patients and OR =1.52, P=0.261 for G/G patients, as compared with A/A patients). In particular, when the analysis was limited to the 363 patients with hepatitis C, the OR for developing HCC was 3.54 (P=0.014) for A/G patients and was 2.85 (P=0.042) for G/G patients, as compared with A/A patients. Tumoral EGF mRNA expression in G/G patients was significantly higher than that in A/A patients (P=0.033). No statistically significant differences were observed between the EGF SNP genotype and diseasefree or overall survival. CONCLUSION The EGF SNP genotype might be associated with a risk for the development of HCC in Japanese patients but not with prognosis. Of note, the association is significantly stronger in patients with hepatitis C, which is the main risk factor for HCC in Japan.
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Toda Y, Yoshida M, Hattori T, Takeda S. RICE SALT SENSITIVE3 binding to bHLH and JAZ factors mediates control of cell wall plasticity in the root apex. PLANT SIGNALING & BEHAVIOR 2013; 8:e26256. [PMID: 23989667 PMCID: PMC4091359 DOI: 10.4161/psb.26256] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/08/2023]
Abstract
Plasticity of root growth in response to environmental cues and stresses is a fundamental characteristic of plants, in accordance with their sessile lifestyle. This is linked to the balance between plasticity and rigidity of cells in the root apex, and thus is coordinated with the control of cell wall properties. However, mechanisms underlying such harmonization are not well understood, in particular under stressful conditions. We have recently demonstrated that RICE SALT SENSITIVE3 (RSS3), a nuclear factor that mediates restrictive expression of jasmonate-induced genes, plays an important role in root elongation under saline conditions. In this study, we report that loss-of-function of RSS3 results in changes in cell wall properties such as lignin deposition and sensitivity to a cellulose synthase inhibitor, concomitant with altered expression of genes involved in cell wall metabolism. Based on these and previous phenotypic observations of the rss3 mutant, we propose that RSS3 plays a role in the coordinated control of root elongation and cell wall plasticity in the root apex.
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Suenaga M, Fujii T, Kanda M, Yamada S, Okumura N, Takeda S, Kodera Y. [Recurrent acute pancreatitis due to arteriovenous malformation of the pancreas]. NIHON SHOKAKIBYO GAKKAI ZASSHI = THE JAPANESE JOURNAL OF GASTRO-ENTEROLOGY 2013; 110:1983-1988. [PMID: 24189828] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A 46-year-old man presented with acute epigastric pain and was diagnosed with acute pancreatitis. Although successfully managed, it recurred shortly after; he was subsequently referred to our institute for further investigation. Dynamic computed tomography (CT) and endoscopic ultrasonography revealed an arteriovenous malformation (AVM) in the body and tail of the pancreas. A diagnosis of pancreatic AVM causing recurrent pancreatitis was made and distal pancreatectomy was performed. Follow-up CT after surgery confirmed no further recurrence of either the AVM or pancreatitis. AVM of the pancreas is rare, and surgical resection is necessary in symptomatic patients.
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Serizawa K, Yogo K, Tashiro Y, Takeda S, Endo K. Active vitamin D3 analog, eldecalcitol, improves flow-mediated dilation via PPAR gamma/NF-kappaB signaling pathway in ovariectomized rats. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht307.p591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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94
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Kanou S, Nagaoka T, Kobayashi N, Kurahashi M, Takeda S, Aoki T, Tsuji T, Urano T, Abe T, Magatani K. Development of a new measurement system to detect selectively volatile organic compounds derived from the human body. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:3837-40. [PMID: 24110568 DOI: 10.1109/embc.2013.6610381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
A new concept expired gas measurement system used double cold-trap method was developed. The system could detect selectively volatile organic compound (VOC) derived from the human body. The gas chromatography (GC) profiles of healthy volunteer's expired gas collected by our system were analyzed. As a result, 60 VOCs were detected from the healthy volunteer's expired gas. We examined 14 VOCs among them further, which could be converted to the concentration from the GC profiles. The concentration of almost VOCs decreased when the subjects inspired purified air compared with the atmosphere. On the other hand, isoprene was almost the same. It was strongly suggested that these VOCs were derived from the human body because the concentration of these VOCs in the atmosphere were nearly zero. Expired gas of two sleep apnea syndrome (SAS) patients were analyzed as preliminary study. As a result of the study, the concentration of some VOCs contained in the expired gas of the SAS patients showed higher value than a healthy controls.
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Shioyama T, Suzuki A, Nomura K, Shigaki N, Kubo H, Takeda S, Yamamori S, Maruyama T, Iseki H, Komori T, Nitta M, Sakayori T, Muragaki Y. Fully automatic rapid DNA Ploidy Analyzer for intraoperative rapid diagnosis support. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2013:906-9. [PMID: 24109835 DOI: 10.1109/embc.2013.6609648] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Frozen section studies are a useful method to rapidly define tumor malignancy and identify the extent of surgical resection. However, diagnosis with a frozen section is qualitative and sometimes difficult. Therefore a quantitative method for grading tumors is desired. We have already reported a technique of intraoperative flow cytometry (iFC) that supports intraoperative histopathological examination of frozen sections. In this study, we report an advanced system named "Fully Automatic Rapid DNA Ploidy Analyzer" with a tissue pretreatment function and a freeze-dried reagent kit for cell staining. To evaluate our system, we analyzed samples from glioma patients who underwent open surgery for brain tumors. We observed obvious difference of the Malignancy Index (MI) between neoplastic and perilesional brain tissue (26.0 ±22.1% and 4.1 ±2.5%, respectively, P<0.001). Cut-off level for identification of the tumor in the biopsy specimen was 6.8% which provided 86% sensitivity and 81% specificity. We also obtained a good correlation between the MI and histological grade (WHO grading). Our new system also enabled finishing the process from sample preparation to the end of analysis in ten minutes or less. These results demonstrate that our fully automatic rapid DNA ploidy analyzer is feasible for rapid determination of glioma presence in a surgical biopsy sample.
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Inokawa Y, Nomoto S, Hishida M, Hayashi M, Kanda M, Nishikawa Y, Takeda S, Fujiwara M, Koike M, Sugimoto H, Fujii T, Nakayama G, Yamada S, Tanaka C, Kobayashi D, Kodera Y. Dynamin 3: a new candidate tumor suppressor gene in hepatocellular carcinoma detected by triple combination array analysis. Onco Targets Ther 2013; 6:1417-24. [PMID: 24143113 PMCID: PMC3797647 DOI: 10.2147/ott.s51913] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Background To identify genes associated with hepatocellular carcinoma (HCC) pathogenesis, we developed a triple combination array strategy comprising methylation, gene expression, and single nucleotide polymorphism (SNP) array analysis. Methods Surgical specimens obtained from a 68-year-old female HCC patient were analyzed by triple combination array, and identified Dynamin 3 (DNM3) as a candidate tumor suppressor gene in HCC. Subsequently, samples from 48 HCC patients were evaluated for DNM3 methylation and expression status using methylation specific polymerase chain reaction (PCR; MSP) and semi-quantitative reverse transcriptase (RT)-PCR, respectively. The relationship between clinicopathological factors and DNM3 methylation status was also investigated. Results DNM3 was shown to be hypermethylated (methylation value 0.879, range 0–1.0) in cancer tissue compared with adjacent normal tissue (0.213) by methylation array in the 68-year-old female patient. Expression arrays revealed decreased expression of DNM3 in cancerous tissue. SNP arrays revealed that the copy number of chromosome 1q24.3, in which DNM3 resides, was normal. MSP revealed hypermethylation of the DNM3 promoter region in 33 of 48 tumor samples. A trend toward decreased DNM3 expression was observed in patients with DNM3 promoter methylation (P = 0.189). Furthermore, patients with reduced expression of DNM3 in tumor tissues exhibited worse prognosis with decreased disease specific survival compared to patients without decreased expression (P = 0.014). Conclusion The present study indicates that a triple combination array strategy is an effective method to detect novel genes related to HCC. We propose that DNM3 is a tumor suppressor gene in HCC.
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Yamada S, Fuchs BC, Fujii T, Shimoyama Y, Sugimoto H, Nomoto S, Takeda S, Tanabe KK, Kodera Y, Nakao A. Epithelial-to-mesenchymal transition predicts prognosis of pancreatic cancer. Surgery 2013; 154:946-54. [PMID: 24075276 DOI: 10.1016/j.surg.2013.05.004] [Citation(s) in RCA: 99] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2013] [Accepted: 05/10/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND Pancreatic cancer has a dismal prognosis that is attributed to common local invasiveness and metastasis. Epithelial-to-mesenchymal transition (EMT) plays an important role in cancer invasion and metastasis and is associated with early dissemination. The aim of this study was to evaluate the association between EMT and the prognoses for patients with pancreatic cancer. METHODS Immunohistochemistry of E-cadherin and vimentin was performed on surgical specimens from 174 patients who underwent resection of their pancreatic cancers. Tumoral stainings of E-cadherin and vimentin were graded, and EMT statuses were determined by calculating the ratio of vimentin to E-cadherin, whereby patients were categorized into 3 groups: epithelial, intermediate, and mesenchymal. The correlations between EMT statuses and clinicopathologic factors and prognoses were analyzed. RESULTS There was a significant correlation between EMT status and CA19-9 levels (P = .020); peritoneal washing cytology (P = .025); portal vein invasion (P = .038); and lymph node metastasis (P = .030). The median survival for patients with epithelial tumors was 40.2 months as compared to 13.7 months for patients with mesenchymal tumors. Multivariate analysis demonstrated that perineural invasion (P = .024); lymph node metastasis (P = .033); and EMT status (P < .0001) were significant prognostic factors. It is interesting that adjuvant chemotherapy (gemcitabine and/or S-1) improved the median survival time from 10.8 to 16.1 months in patients with mesenchymal tumors (P = .002); however, no significant difference was seen in patients with epithelial tumors. CONCLUSION EMT status is an important prognostic factor for pancreatic cancer and is associated with portal vein invasion and lymph node metastasis.
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Inokawa Y, Nomoto S, Hishida M, Hayashi M, Kanda M, Nishikawa Y, Takeda S, Sugimoto H, Fujii T, Yamada S, Kodera Y. Detection of doublecortin domain-containing 2 (DCDC2), a new candidate tumor suppressor gene of hepatocellular carcinoma, by triple combination array analysis. JOURNAL OF EXPERIMENTAL & CLINICAL CANCER RESEARCH : CR 2013; 32:65. [PMID: 24034596 PMCID: PMC3847884 DOI: 10.1186/1756-9966-32-65] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2013] [Accepted: 09/09/2013] [Indexed: 12/20/2022]
Abstract
Background To detect genes correlated with hepatocellular carcinoma (HCC), we developed a triple combination array consisting of methylation array, gene expression array and single nucleotide polymorphism (SNP) array analysis. Methods A surgical specimen obtained from a 68-year-old female HCC patient was analyzed by triple combination array, which identified doublecortin domain-containing 2 (DCDC2) as a candidate tumor suppressor gene of HCC. Subsequently, samples from 48 HCC patients were evaluated for their DCDC2 methylation and expression status using methylation specific PCR (MSP) and semi-quantitative reverse transcriptase (RT) PCR, respectively. Then, we investigated the relationship between clinicopathological factors and methylation status of DCDC2. Results DCDC2 was revealed to be hypermethylated (methylation value 0.846, range 0–1.0) in cancer tissue, compared with adjacent normal tissue (0.212) by methylation array in the 68-year-old female patient. Expression array showed decreased expression of DCDC2 in cancerous tissue. SNP array showed that the copy number of chromosome 6p22.1, in which DCDC2 resides, was normal. MSP revealed hypermethylation of the promoter region of DCDC2 in 41 of the tumor samples. DCDC2 expression was significantly decreased in the cases with methylation (P = 0.048). Furthermore, the methylated cases revealed worse prognosis for overall survival than unmethylated cases (P = 0.048). Conclusions The present study indicates that triple combination array is an effective method to detect novel genes related to HCC. We propose that DCDC2 is a tumor suppressor gene of HCC.
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Biswas G, Korenaga H, Nagamine R, Kawahara S, Takeda S, Kikuchi Y, Dashnyam B, Yoshida T, Kono T, Sakai M. Elevated cytokine responses to Vibrio harveyi infection in the Japanese pufferfish (Takifugu rubripes) treated with Lactobacillus paracasei spp. paracasei (06TCa22) isolated from the Mongolian dairy product. FISH & SHELLFISH IMMUNOLOGY 2013; 35:756-765. [PMID: 23769874 DOI: 10.1016/j.fsi.2013.06.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/10/2013] [Revised: 05/21/2013] [Accepted: 06/03/2013] [Indexed: 06/02/2023]
Abstract
With the aim of evaluating the effect of a Mongolian dairy product derived Lactobacillus paracasei spp. paracasei (strain 06TCa22) (Lpp) on the cytokine-mediated immune responses to Vibrio harveyi infection, we examined 16 cytokine expressions in the Japanese pufferfish, Takifugu rubripes. Fish were orally treated with the heat-killed Lpp at 1 mg g(-1) body weight d(-1) for 3 days. At 24 h posttreatment, fish were infected by an intramuscular injection of 0.1 mL V. harveyi bacterial suspension (10(8) cfu mL(-1)). Additionally, superoxide anion production (SAP) and phagocytic activity (PA) of head kidney cells were assessed during 120 h postinfection period. Significant up-regulation of pro-inflammatory (IL-1β, IL-6, IL-17A/F-3, TNF-α and TNF-N), cell-mediated immune inducing (IL-12p35, IL-12p40 and IL-18), antiviral/intra-cellular pathogen killing (I-IFN-1 and IFN-γ), anti-inflammatory (IL-10) and lymphocyte agonistic (IL-2, IL-7, IL-15, IL-21 and TGF-β1) cytokines was observed in the treated fish compared to control ones during the pathogen infection. Furthermore, significantly increased SAP and PA (P < 0.01; 0.05) were recorded in the treated fish compared to untreated fish. These results suggest the beneficial role of Lpp in enhancement of cytokine-mediated immunity in the Japanese pufferfish against V. harveyi infection and application of this product as a potential fish immunostimulant.
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Satoi S, Yamaue H, Kato K, Takahashi S, Hirono S, Takeda S, Eguchi H, Sho M, Wada K, Shinchi H, Kwon AH, Hirano S, Kinoshita T, Nakao A, Nagano H, Nakajima Y, Sano K, Miyazaki M, Takada T. Role of adjuvant surgery for patients with initially unresectable pancreatic cancer with a long-term favorable response to non-surgical anti-cancer treatments: results of a project study for pancreatic surgery by the Japanese Society of Hepato-Biliary-Pancreatic Surgery. JOURNAL OF HEPATO-BILIARY-PANCREATIC SCIENCES 2013; 20:590-600. [PMID: 23660962 DOI: 10.1007/s00534-013-0616-0] [Citation(s) in RCA: 123] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
PURPOSE A multicenter survey was conducted to explore the role of adjuvant surgery for initially unresectable pancreatic cancer with a long-term favorable response to non-surgical cancer treatments. METHODS Clinical data including overall survival were retrospectively compared between 58 initially unresectable pancreatic cancer patients who underwent adjuvant surgery with a favorable response to non-surgical cancer treatments over 6 months after the initial treatment and 101 patients who did not undergo adjuvant surgery because of either unchanged unresectability, a poor performance status, and/or the patients' or surgeons' wishes. RESULTS Overall mortality and morbidity were 1.7 and 47 % in the adjuvant surgery group. The survival curve in the adjuvant surgery group was significantly better than in the control group (p < 0.0001). The propensity score analysis revealed that adjuvant surgery was a significant independent prognostic variable with an adjusted hazard ratio (95 % confidence interval) of 0.569 (0.36-0.89). Subgroup analysis according to the time from initial treatment to surgical resection showed a significant favorable difference in the overall survival in patients who underwent adjuvant surgery over 240 days after the initial treatment. CONCLUSION Adjuvant surgery for initially unresectable pancreatic cancer patients can be a safe and effective treatment. The overall survival rate from the initial treatment is extremely high, especially in patients who received non-surgical anti-cancer treatment for more than 240 days.
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