76
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Sano S, Nakagawa Y, Yamaguchi R, Fujisawa Y, Satake E, Nagata E, Nakanishi T, Liu YJ, Ohzeki T. Carbenoxolone alters the morphology of adipose tissues and downregulates genes involved in adipogenesis, glucose transport and lipid metabolism in high-fat diet-fed mice. Horm Metab Res 2012; 44:15-20. [PMID: 22205568 DOI: 10.1055/s-0031-1297990] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
Glucocorticoid (GC) excess promotes adipose tissue accumulation, and 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) plays an important role in the local amplification of GC. Therefore, in this study, we investigated the effects of carbenoxolone (CBX), an 11β-HSD1 inhibitor, on morphological changes in visceral fat, and the expression of genes involved in adipogenesis and lipid metabolism in high-fat (HF) diet-fed mice. Mice were fed a HF diet from 5 weeks of age. At 10 weeks of age, the mice received an intraperitoneal injection of CBX or vehicle every day for 2 weeks. CBX decreased body weight and visceral fat mass, and improved insulin sensitivity in HF-fed mice. This was accompanied by reduced adipocyte size and a decrease in large-sized adipocytes in visceral fat. The expression of adipogenesis (PPARγ and C/EBPα), glucose transport (GLUT4) and lipid metabolism (LPL, ATGL, and HSL)-related genes were suppressed in CBX mice. CBX treatment induced beneficial morphological changes in visceral fat and decreased the expression of adipogenesis, glucose transport and lipid metabolism-related genes. These findings reveal a potential mechanism underling the effects of CBX on reduced fat accumulation and improved insulin sensitivity.
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77
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Ikeda K, Yamasaki K, Homemoto M, Yamaue S, Ogawa M, Nakao E, Fukunaga Y, Nakanishi T, Utoguchi N, Myotoku M, Hirotani Y. Efflux transporter mRNA expression profiles in differentiating JEG-3 human choriocarcinoma cells as a placental transport model. DIE PHARMAZIE 2012; 67:86-90. [PMID: 22393837] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The kinetics of drug transport across the trophoblast layer is determined by several factors. Human choriocarcinoma cell lines like BeWo and JEG-3 have been used as models of the trophoblast layer to examine the placental transport of drugs. Previously, the drugs examined in these models have been readily transported across the trophoblast layer via cellular gap junctions. These backgrounds enabled us to establish the differentiating JEG-3 cell (DJEG) layer model, which suppresses paracellular drug transport, as an evaluation system of placental drug transport. The efflux transporters on the trophoblast layer assume the meaningful role of protecting the fetus from xenobiotic substances. In order to clarify the usefulness of our DJEG placental drug transport model, this study examined the mRNA expression profiles of the efflux transporters MRPs, MDR1, and BCRP in JEG-3 cells and compared them with those of BeWo cells and their known placental expression. We suggest that the mRNA of efflux transporters MRP 1-8 and BCRP are expressed widely in JEG-3 cells; however, expression levels of MDR1 mRNA were undetectable. It was also indicated that polymorphisms of BCRP C421A in both the BeWo and JEG-3 cells are of the wild-type. We demonstrated the efflux transporters' expression profiles, as well as those of the BeWo cells, was demonstrated in the DJEG placental drug transport evaluating model as well as the BeWo cells, in the DJEG placental drug transport evaluation model. Based on these findings, we hope that the DJEG model will be adequate for use in evaluating placental drug transport in relation to the transporter proteins.
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78
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Nakanishi T, Yoshioka H, Hiromori Y, Aoki A, Kimura T, Nagase H. Possible mechanism of 2,3,7,8-tetrachlorodibenzo-p-dioxin-induced antiproliferative response in human breast cancer MCF-7 cells through an independent pathway of aryl hydrocarbon receptor. Toxicol Lett 2011. [DOI: 10.1016/j.toxlet.2011.05.588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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79
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Nakanishi T, Hasuike Y, Otaki Y, Kida A, Nonoguchi H, Kuragano T. Hepcidin: another culprit for complications in patients with chronic kidney disease? Nephrol Dial Transplant 2011; 26:3092-100. [DOI: 10.1093/ndt/gfr410] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
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80
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Yamamoto N, Jin XG, Mano A, Ujihara T, Takeda Y, Okumi S, Nakanishi T, Yasue T, Koshikawa T, Ohshima T, Saka T, Horinaka H. Status of the high brightness polarized electron source using transmission photocathode. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/298/1/012017] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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81
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Kuwahara M, Takeda Y, Saitoh K, Ujihara T, Asano H, Nakanishi T, Tanaka N. Development of spin-polarized transmission electron microscope. ACTA ACUST UNITED AC 2011. [DOI: 10.1088/1742-6596/298/1/012016] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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82
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Takahashi K, Shibasaki A, Hirose T, Kaneko K, Nakamura M, Ohba K, Kato I, Totsune K, Zumrutdal A, Calayoglu R, Mescigil P, Kutlay S, Sengul S, Erturk S, Ibrahim M, Ahmed T, Awadalla A, El Naggar A, Yokoyama T, Onodera Y, Shimonaka Y, Sasaki Y, Kuragano T, Furuta M, Kida A, Kitamura R, Yahiro M, Otaki T, Hasuike Y, Nonoguchi H, Nishihara F, Nakanishi T, Sedlackova T, Racek J, Trefil L, Eiselt J, Kielberger L, Malanova L, Youssef D, Tawfeek D, Desoki T, Khalifa N, Takasawa K, Takaeda C, Higuchi M, Maeda T, Tomosugi N, Bratescu LO, Barsan L, Garneata L, Stanciu A, Lipan M, Stancu SH, Mircescu G, Zager P, Paine S, Myers O, Chang JH, Jung JY, Lee HH, Chung W, Kim S, Tutal E, Erkmen Uyar M, Sezer S, Bal Z, Wabel P, Machek P, Moissl U, Chamney P, Jirka T, Moissl U, Wabel P, Chamney P, Wieskotten S, Amato C, Mari F, Korol L, Dudar I, Van Wyck D, Goykhman I, Weldon J, Krishnan M, Nissenson A, Kinugasa E, Sanaka T, Mochizuki T, Kuno T, Kojima K, Kobayashi S, Satoh M, Noiri E, Kusano E, Owada S, Shimada N, Nakao K, Nakazawa R, Nishimura H, Tomo T, Shigematsu T, Maeda T, Rottembourg J, Guerin A, Diaconita M, Dumont JC, Dansaert A, Chailimpamontree W, Gojaseni P, Pajareya T, Chittinandana A, Bachmakov I, Meissner R, Benkenstein C, Migliori M, Bernabini G, Beati S, Paoletti S, De Pietro S, Ferrandello FP, Panichi V, Senol E, Ersoy A, Erdinc S, Sarandol E, Mikami S, Hamano T, Iba O, Inoue T, Toki M, Takamitsu Y, Mikami H, Fujii M. Anaemia in CKD 5D. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.56] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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83
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Woodburn K, Holmes C, Fong KL, Sloneker S, Strzemienski P, Solon E, Ryckelynck JP, Lang P, Bataille P, Choukroun G, Esnault V, Knebelman B, Laville M, Fellous M, Legrand E, Portoles J, Vega NJ, Fernandez-Fresnedo G, Perez A, Bea S, Camba MJ, Leistikow F, Heidenreich S, Cases A, Portoles J, Calls J, Martinez Castelao A, Sanchez-Guisande D, Espinel E, Carreno A, Campistol JM, Arias M, Morales JM, Pallardo L, Franco A, Shestakova M, Heidenreich S, Tsubakihara Y, Bessho M, Suzuki M, Correa-Rotter R, Niihata K, Tomosugi N, Uehata T, Shoji T, Sonoda M, Kawabata H, Sakaguchi Y, Suzuki A, Okada N, Tsubakihara Y, Kuragano T, Shimonaka Y, Kida A, Kitamura R, Furuta M, Yahiro M, Otaki Y, Nisihara F, Nonoguchi H, Nakanishi T, Mircescu G, Stancu S, Stanciu A, Viasu L, Capusa C, Petrescu L, Zugravu A, Aydin Z, Gursu M, Uzun S, Karadag S, Tatli E, Sumnu A, Doventas Y, Koldas M, Ozturk S, Kazancioglu R, Malyszko Y, Levin-Iaina N, Malyszko J, Kozminski P, Koc-Zorawska E, Mysliwiec M, Hara M, Ando M, Tsuchiya K, Nitta K, Mirescu G, Deray G, Garneata L, Goldsmith D, Gorriz Teruel JL, Martin PY, Mitchell D, Mori C, Schafer R, Guerin A, Addison J, Bridges I, Di Giulio S, Farouk M, Winearls C, Kiss I, Claes K, Galle J, Costa E, Rocha-Pereira P, Sameiro-Faria M, Miranda V, Afonso C, Belo L, Marinho C, Bicho M, Santos-Silva A, Kim HW, Jang EH, Mercadal L, Metzger M, Casadevall N, Haymann JP, Boffa JJ, Flamant M, Vrtovsnik F, Stengel B, Froissart M, Ode M, Roth K, Locatelli F, Horl WH. Anaemia in CKD 1-5. Clin Kidney J 2011. [DOI: 10.1093/ndtplus/4.s2.32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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84
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Nomura S, Ozasa R, Nakanishi T, Fujita S, Miyaji M, Mori S, Yokoi T, Ito T, Ishii K. Can recombinant thrombomodulin play a preventive role for veno-occlusive disease after haematopoietic stem cell transplantation? Thromb Haemost 2011; 105:1118-20. [PMID: 21647533 DOI: 10.1160/th10-12-0802] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2010] [Accepted: 03/05/2011] [Indexed: 01/24/2023]
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85
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Nagata E, Nakagawa Y, Yamaguchi R, Fujisawa Y, Sano S, Satake E, Matsushita R, Nakanishi T, Liu Y, Ohzeki T. Altered gene expressions of ghrelin, PYY, and CCK in the gastrointestinal tract of the hyperphagic intrauterine growth restriction rat offspring. Horm Metab Res 2011; 43:178-82. [PMID: 21264794 DOI: 10.1055/s-0030-1270528] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
Intrauterine growth restriction (IUGR) is associated with a substantially greater incidence of metabolic syndrome in adulthood. Animal studies have shown that IUGR offspring are hyperphagic during the early postnatal period and therefore exhibit obesity. The molecular mechanisms underlying food intake regulation in the gastrointestinal tract have not been clarified in IUGR. In the present study, we utilized a rat model of IUGR by restricting the food intake of the mother (50% of the normal intake, ad libitum; FR group) from day 7 of gestation until delivery. Pups from undernourished mothers were fostered by control mothers. We examined the food intake and assessed the gene expressions of ghrelin, peptide YY (PYY), and cholecystokinin (CCK) in the alimentary tract of male newborns (postnatal day1) and adult offspring (age, 7 months). Compared to the offspring whose mothers received the standard diet ad libitum (CON offspring), FR offspring were hyperphagic from the weaning time until the end of the experiment, and resulted in a heavier final weight. Both newborn and adult FR offspring had higher ghrelin gene expression in the stomach and higher ghrelin plasma levels than did the controls. Although the gastrointestinal gene expressions and plasma levels of the anorexic peptides, PYY and CCK, were elevated in the FR newborns, they decreased in the FR adults. Our findings suggest that the altered gene expressions of orexigenic and anorexigenic gut peptides in the gastrointestinal tract in the maternal undernutrition-induced IUGR offspring provide a potential mechanism to explain hyperphagia and obesity seen in these offspring.
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86
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Yamaguchi R, Nakagawa Y, Liu YJ, Fujisawa Y, Sai S, Nagata E, Sano S, Satake E, Matsushita R, Nakanishi T, Chapman KE, Seckl JR, Ohzeki T. Effects of maternal high-fat diet on serum lipid concentration and expression of peroxisomal proliferator-activated receptors in the early life of rat offspring. Horm Metab Res 2010; 42:821-5. [PMID: 20711951 DOI: 10.1055/s-0030-1261954] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Peroxisomal proliferator-activated receptors (PPARs) play an important role in the regulation of lipid metabolism. The aim of this study was to investigate the effects of a maternal high-fat (HF) diet on serum lipid concentration and PPAR gene expression in liver and adipose tissue in the early life of the rat offspring. Female Sprague-Dawley rats were fed either an HF or control (CON) diet 6 weeks before mating and throughout gestation and lactation. Blood and tissue samplings of male offspring were carried out at birth or weaning. Birth weights were similar and serum triglyceride (TG) and nonesterified fatty acid (NEFA) levels showed no significant difference between HF and CON newborns, despite greatly increased hepatic PPARα mRNA expression in the HF newborns (p<0.05). Both HF newborns and weanlings revealed significantly decreased hepatic PPARγ expression compared with controls (p<0.0001). Hepatic PPARα expression in the HF weanlings was reduced markedly compared with CON weanlings (p<0.0001) and showed a negative correlation with serum TG levels (r=-0.743, p<0.05). However, epididymal expression of PPARγ in the HF weanlings was upregulated significantly compared with controls (p<0.05) and demonstrated a positive correlation with epididymal fat mass (r=0.733, p<0.05). These were accompanied by obesity as well as a rise in serum TG by 79% (p<0.05) and NEFA concentration by 36% (p<0.05) in these HF weanlings. Our findings suggest that maternal HF diet leads to alterations in PPAR gene expression in the weanling offspring, which is associated with the disturbed lipid homeostasis.
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87
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Hiromori Y, Nishikawa J, Nagase H, Nakanishi T. Structure-dependent activation of peroxisome proliferator-activated receptor gamma by organotin compounds. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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88
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Kimura T, Okumura F, Onodera A, Nakanishi T, Itoh N, Isobe M. Chromium(VI) inhibits mouse metallothionein-I gene transcription by modifying transactivation potential of the co-activator p300. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.952] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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89
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Nakanishi T, Yoshida I, Nagase H. Establishment of transgenic mouse model exposed to excessive estrogens in the fetal period. Toxicol Lett 2010. [DOI: 10.1016/j.toxlet.2010.03.642] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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90
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Yarai A, Nakanishi T. Optical fiber hydrogen sensor based on photothermal reflectance detection technique. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/214/1/012039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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91
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Chiba K, Fujimura Y, Toyama Y, Takahata T, Nakanishi T, Hirabayashi K. Anterior screw fixation for odontoid fracture: clinical results in 45 cases. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2010; 2:76-81. [PMID: 20058455 DOI: 10.1007/bf00302707] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
Clinical results of anterior screw fixation in 45 patients with odontoid fractures were reviewed retrospectively. The patients were 36 males and 9 females, with fractures classified as 35 type II and 10 type III. There were 34 fresh and 11 old fractures. Neurological complications were present in 16 patients and 18 had associated injuries. All patients underwent single screw fixation. Postoperative immobilization, external support, and surgical trauma were minimal. In one patient a screw extruded from the dens and immediate posterior fusion was necessary. The overall rate of fracture union was 93% (41 out of 44 fractures). Fracture resolution averaged 5.2 months. There were two delayed unions and three nonunions, the causes of which were preoperatively established nonunion, severe osteoporosis, and inaccurate screw placement. Out of 11 old cases, 8 went on to union. Ninety-six percent of the patients recovered neurologically. The overall complication rate, including a misplaced screw, a retropharyngeal wall injury, and three nonunions, was 11%. Head rotation was preserved in 90% of the patients with fracture union according to clinical measurements. Anterior screw fixation is an excellent treatment for fresh type II and cephalad type III odontoid fractures, carrying a high union rate, preservation of the C1-2 motion segment, and minimal surgical trauma; it can be applied even to some old cases. Precise patient selection in regard to patient age, bone density, and time elapsed since injury as well as preoperative anatomical reduction and meticulous surgical technique with fine fluoroscopy are essential to avoid complications and nonunions.
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92
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Hosono S, Matsuo K, Kajiyama H, Hirose K, Suzuki T, Kawase T, Kidokoro K, Nakanishi T, Hamajima N, Kikkawa F, Tajima K, Tanaka H. Association between dietary calcium and vitamin D intake and cervical carcinogenesis among Japanese women. Eur J Clin Nutr 2010; 64:400-9. [DOI: 10.1038/ejcn.2010.28] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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93
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Nakanishi T, Chumsri S, Khakpour N, Brodie AH, Leyland-Jones B, Hamburger AW, Ross DD, Burger AM. Side-population cells in luminal-type breast cancer have tumour-initiating cell properties, and are regulated by HER2 expression and signalling. Br J Cancer 2010; 102:815-26. [PMID: 20145614 PMCID: PMC2833247 DOI: 10.1038/sj.bjc.6605553] [Citation(s) in RCA: 76] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2009] [Revised: 12/21/2009] [Accepted: 12/22/2009] [Indexed: 01/16/2023] Open
Abstract
BACKGROUND The expression of side-population (SP) cells and their relation to tumour-initiating cells (T-ICs) have been insufficiently studied in breast cancer (BC). We therefore evaluated primary cell cultures derived from patients and a panel of human BC cell lines with luminal- or basal-molecular signatures for the presence of SP and BC stem cell markers. METHODS The SPs from luminal-type BC were analysed for BC T-IC characteristics, including human epidermal growth factor receptor 2 (HER2), ERalpha, IGFBP7 expression and their ability to initiate tumours in non-obese diabetic severe combined immunodeficiency (NOD/SCID) mice. Pharmacological modulators were used to assess the effects of HER2 signalling and breast cancer-resistance protein (BCRP) expression on SPs. RESULTS The SP was more prevalent in the luminal subtype of BC compared with the basal subtype. HER2 expression was significantly correlated with the occurrence of an SP (r(2)=0.75, P=0.0003). Disappearance of SP in the presence of Ko143, a specific inhibitor of the ATP-binding cassette transporter BCRP, suggests that BCRP is the predominant transporter expressed in this population. The SP also decreased in the presence of HER2 signalling inhibitors AG825 or trastuzumab, strengthening the notion that HER2 contributed to the SP phenotype, likely through downstream AKT signalling. The SP cells from luminal-type MCF-7 cells with enforced expression of HER2, and primary cells with luminal-like properties from a BC patient, displayed enrichment in cells capable of repopulating tumours in NOD/SCID mice. Engraftment of SP cells was inhibited by pretreatment with AG825 or by in vivo treatment with trastuzumab. INTERPRETATION Our findings indicate an important role of HER2 in regulating SP and hence T-ICs in BC, which may account for the poor responsiveness of HER2-positive BCs to chemotherapy, as well as their aggressiveness.
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MESH Headings
- ATP Binding Cassette Transporter, Subfamily G, Member 2
- ATP-Binding Cassette Transporters/antagonists & inhibitors
- ATP-Binding Cassette Transporters/metabolism
- Animals
- Antibodies, Monoclonal/pharmacology
- Antibodies, Monoclonal, Humanized
- Blotting, Western
- Breast Neoplasms/metabolism
- Breast Neoplasms/pathology
- Drug Resistance, Neoplasm
- Female
- Flow Cytometry
- Humans
- Insulin-Like Growth Factor Binding Proteins/antagonists & inhibitors
- Insulin-Like Growth Factor Binding Proteins/metabolism
- Mice
- Mice, Inbred NOD
- Mice, Nude
- Mice, SCID
- Neoplasm Proteins/antagonists & inhibitors
- Neoplasm Proteins/metabolism
- Neoplastic Stem Cells/pathology
- Proto-Oncogene Proteins c-akt/metabolism
- Receptor, ErbB-2/antagonists & inhibitors
- Receptor, ErbB-2/metabolism
- Signal Transduction
- Trastuzumab
- Tumor Cells, Cultured
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Hirao K, Yumoto H, Takahashi K, Mukai K, Nakanishi T, Matsuo T. Roles of TLR2, TLR4, NOD2, and NOD1 in Pulp Fibroblasts. J Dent Res 2009; 88:762-7. [DOI: 10.1177/0022034509341779] [Citation(s) in RCA: 78] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Pulp fibroblasts express various pro-inflammatory mediators leading to marked infiltration of inflammatory cells in the progression of pulpitis. We hypothesized that pulp fibroblasts play roles in the recognition of invaded caries-related bacteria and the subsequent innate immune responses. We found clear expressions of TLR2, NOD1, and NOD2 and a faint expression of TLR4 in human dental pulp fibroblasts (HDPF) by RT-PCR and flow cytometry. We also observed that various pro-inflammatory mediators, including cytokines, chemokines, adhesion molecules, prostaglandin E2 and its key enzyme COX-2, not iNOS or caspase-1, were markedly up-regulated by stimulation with these TLR and NOD agonists. More over, the NOD2 agonist acted synergistically with the TLR2, not the TLR4, agonist to stimulate the production of pro-inflammatory mediators in HDPF. These findings indicate that TLR2, TLR4, NOD2, and NOD1 in HDPF are functional receptors, and NOD2 is a modulator of signals transmitted through TLR2 in pulpal immune responses, leading to progressive pulpitis.
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95
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Shishido T, Azumi Y, Nakanishi T, Umetsu M, Tanaka T, Ogino C, Fukuda H, Kondo A. Biotinylated Bionanocapsules for Displaying Diverse Ligands Toward Cell-specific Delivery. J Biochem 2009; 146:867-74. [DOI: 10.1093/jb/mvp134] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
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96
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Okada M, Suzuki K, Matsumoto M, Takada K, Nakanishi T, Horikoshi H, Higuchi T, Hosono Y, Nakayama M, Ohsuzu F. Effects of angiotensin on the expression of fibrosis-associated cytokines, growth factors, and matrix proteins in human lung fibroblasts. J Clin Pharm Ther 2009; 34:288-99. [DOI: 10.1111/j.1365-2710.2008.01006.x] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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97
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Yoshida Y, Nakazawa T, Yoshikawa H, Nakanishi T. Partition coefficient of Ra in gypsum. J Radioanal Nucl Chem 2009. [DOI: 10.1007/s10967-009-7470-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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98
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Kikunaga H, Kasamatsu Y, Takamiya K, Ohtsuki T, Yuki H, Yokoyama A, Nakanishi T, Mitsugashira T. Development of a rapid source preparation method for high-resolution α-particle spectrometry. Appl Radiat Isot 2009; 67:539-43. [DOI: 10.1016/j.apradiso.2008.11.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2008] [Accepted: 11/22/2008] [Indexed: 11/29/2022]
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99
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Munemoto M, Yahiro M, Kawanishi H, Nonoguchi H, Nakanishi T. West J Med 2009; 338:b430-b430. [DOI: 10.1136/bmj.b430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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100
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Nakanishi T, Kusakabe M, Aono T, Yamada M. Simultaneous measurements of cosmogenic radionuclides 32P, 33P and 7Be in dissolved and particulate forms in the upper ocean. J Radioanal Nucl Chem 2009. [DOI: 10.1007/s10967-008-7374-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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