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Fujiwara R, Noguchi T, Nonogi H, Kumasaka R, Arakawa T, Nakanishi M, Goto Y, Ishihara M, Yasuda S, Ogawa H. Are they really not guilty who present to the emergency department with acute chest pain, no obstructive coronary artery disease by CT angiography? Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.p4708] [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: 11/13/2022] Open
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52
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Tateno H, Matsushima A, Hiemori K, Onuma Y, Ito Y, Hasehira K, Nishimura K, Ohtaka M, Takayasu S, Nakanishi M, Ikehara Y, Nakanishi M, Ohnuma K, Chan T, Toyoda M, Akutsu H, Umezawa A, Asashima M, Hirabayashi J. Podocalyxin is a glycoprotein ligand of the human pluripotent stem cell-specific probe rBC2LCN. Stem Cells Transl Med 2013; 2:265-73. [PMID: 23526252 DOI: 10.5966/sctm.2012-0154] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
In comprehensive glycome analysis with a high-density lectin microarray, we have previously shown that the recombinant N-terminal domain of the lectin BC2L-C from Burkholderia cenocepacia (rBC2LCN) binds exclusively to undifferentiated human induced pluripotent stem (iPS) cells and embryonic stem (ES) cells but not to differentiated somatic cells. Here we demonstrate that podocalyxin, a heavily glycosylated type 1 transmembrane protein, is a glycoprotein ligand of rBC2LCN on human iPS cells and ES cells. When analyzed by DNA microarray, podocalyxin was found to be highly expressed in both iPS cells and ES cells. Western and lectin blotting revealed that rBC2LCN binds to podocalyxin with a high molecular weight of more than 240 kDa in undifferentiated iPS cells of six different origins and four ES cell lines, but no binding was observed in either differentiated mouse feeder cells or somatic cells. The specific binding of rBC2LCN to podocalyxin prepared from a large set of iPS cells (138 types) and ES cells (15 types) was also confirmed using a high-throughput antibody-overlay lectin microarray. Alkaline digestion greatly reduced the binding of rBC2LCN to podocalyxin, indicating that the major glycan ligands of rBC2LCN are presented on O-glycans. Furthermore, rBC2LCN was found to exhibit significant affinity to a branched O-glycan comprising an H type 3 structure (Ka, 2.5 × 10(4) M(-1)) prepared from human 201B7 iPS cells, indicating that H type 3 is a most probable potential pluripotency marker. We conclude that podocalyxin is a glycoprotein ligand of rBC2LCN on human iPS cells and ES cells.
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Takada-Iwao A, Seki M, Nakanishi M, Souma J, Okuda S, Okuda Y, Imai Y, Sato S. Porcine circovirus type 2 (PCV2) vaccination reduces PCV2 in a PCV2 and Salmonella enterica serovar Choleraesuis coinfection model. Vet Microbiol 2013; 162:219-23. [DOI: 10.1016/j.vetmic.2012.10.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2012] [Revised: 10/01/2012] [Accepted: 10/05/2012] [Indexed: 11/30/2022]
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Aspera SM, Sakaue M, Wungu TDK, Alaydrus M, Linh TPT, Kasai H, Nakanishi M, Ishihara T. Analysis of structural and electronic properties of Pr2NiO4 through first-principles calculations. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2012; 24:405504. [PMID: 22971591 DOI: 10.1088/0953-8984/24/40/405504] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The structural and electronic properties of bulk Pr(2)NiO(4+δ) (δ = 0 and 0.031) were analyzed using first-principles calculations based on the density functional theory (DFT) for application to electrode materials in solid-oxide fuel cells (SOFCs). Two structures of Pr(2)NiO(4) were analyzed: one in space group I4/mmm associated with the high temperature tetragonal (HTT) structure, and the other in Bmab with the low temperature orthorhombic (LTO) structure. The main difference between the two structures is the pronounced tilting of the nickelate octahedra found in the Bmab structure. Here, we will show that the difference in the electronic properties between the two structures, i.e. half-metallic for the I4/mmm structure and metallic for the Bmab structure, is attributed to the tilting of the nickelate octahedra. Furthermore, we found that the presence of interstitial O atoms at the Pr(2)O(2) bilayers is responsible for the tilting of the octahedra and thus is a dominant factor in the transition from the I4/mmm structure to the Bmab structure. These results would be of great significance to materials design related to the enhancement of O diffusivity in this material.
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Kamiya K, Nakanishi M, Ishii R, Kobashi H, Igarashi A, Sato N, Shimizu K. Clinical evaluation of the additive effect of diquafosol tetrasodium on sodium hyaluronate monotherapy in patients with dry eye syndrome: a prospective, randomized, multicenter study. Eye (Lond) 2012; 26:1363-1368. [PMID: 22878452 DOI: 10.1038/eye.2012.166eye2012166] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2023] Open
Abstract
PURPOSE To assess the additive effect of diquafosol tetrasodium on sodium hyaluronate monotherapy in patients with dry eye syndrome. METHODS This study evaluated 64 eyes of 32 patients (age: 62.6±12.8 years (mean±SD)) in whom treatment with 0.1% sodium hyaluronate was insufficiently responsive. The eyes were randomly assigned to one of the two regimens in each patient: topical administration of sodium hyaluronate and diquafosol tetrasodium in one eye, and that of sodium hyaluronate in the other. Before treatment, and 2 and 4 weeks after treatment, we determined tear volume, tear film break-up time (BUT), fluorescein and rose bengal vital staining scores, subjective symptoms, and adverse events. RESULTS We found a significant improvement in BUT (P=0.049, Dunnett test), fluorescein and rose bengal staining scores (P=0.02), and in subjective symptoms (P=0.004 for dry eye sensation, P=0.02 for pain, and P=0.02 for foreign body sensation) 4 weeks after treatment in the diquafosol eyes. On the other hand, we found no significant change in these parameters after treatment in the control eyes. CONCLUSIONS In dry eyes, where sodium hyaluronate monotherapy was insufficient, diquafosol tetrasodium was effective in improving objective and subjective symptoms, suggesting its viability as an option for the additive treatment of such eyes.
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Kamiya K, Nakanishi M, Ishii R, Kobashi H, Igarashi A, Sato N, Shimizu K. Clinical evaluation of the additive effect of diquafosol tetrasodium on sodium hyaluronate monotherapy in patients with dry eye syndrome: a prospective, randomized, multicenter study. Eye (Lond) 2012; 26:1363-8. [PMID: 22878452 DOI: 10.1038/eye.2012.166] [Citation(s) in RCA: 59] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022] Open
Abstract
PURPOSE To assess the additive effect of diquafosol tetrasodium on sodium hyaluronate monotherapy in patients with dry eye syndrome. METHODS This study evaluated 64 eyes of 32 patients (age: 62.6±12.8 years (mean±SD)) in whom treatment with 0.1% sodium hyaluronate was insufficiently responsive. The eyes were randomly assigned to one of the two regimens in each patient: topical administration of sodium hyaluronate and diquafosol tetrasodium in one eye, and that of sodium hyaluronate in the other. Before treatment, and 2 and 4 weeks after treatment, we determined tear volume, tear film break-up time (BUT), fluorescein and rose bengal vital staining scores, subjective symptoms, and adverse events. RESULTS We found a significant improvement in BUT (P=0.049, Dunnett test), fluorescein and rose bengal staining scores (P=0.02), and in subjective symptoms (P=0.004 for dry eye sensation, P=0.02 for pain, and P=0.02 for foreign body sensation) 4 weeks after treatment in the diquafosol eyes. On the other hand, we found no significant change in these parameters after treatment in the control eyes. CONCLUSIONS In dry eyes, where sodium hyaluronate monotherapy was insufficient, diquafosol tetrasodium was effective in improving objective and subjective symptoms, suggesting its viability as an option for the additive treatment of such eyes.
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Tanaka N, Umeda T, Kusakabe Y, Nakanishi M, Kitade Y, Nakamura KT. Structural basis of fosmidomycin's action on Plasmodium falciparum. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311092397] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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58
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Brezina P, Nguyen KHD, Benner AT, Du L, Ross R, Barker A, Anchan RM, Richter K, Kearns WG, Kirkegaard K, Hindkjaer J, Ingerslev HJ, Garcia-Guixe E, Jimenez-Macedo A, Arjona C, Gimenez C, Sandalinas M, Mizutani E, Suzumori N, Ozaki Y, Oseto K, Yamada-Namikawa C, Nakanishi M, Sugiura-Ogasawara M, Borges E, Figueira RCS, Braga DPAF, Pasqualetto FF, Setti AS, Iaconelli A, Tolmacheva EN, Kashevarova AA, Sukhanova NN, Lebedev IN. SELECTED ORAL COMMUNICATION SESSION, SESSION 36: ANEUPLOIDY, Tuesday 5 July 2011 10:00 - 11:30. Hum Reprod 2011. [DOI: 10.1093/humrep/26.s1.36] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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59
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Takada-Iwao A, Nakanishi M, Souma J, Chikata S, Okuda Y, Imai Y, Sato S. Porcine circovirus type 2 potentiates morbidity of Salmonella enterica serovar Choleraesuis in Cesarean-derived, colostrum-deprived pigs. Vet Microbiol 2011; 154:104-12. [PMID: 21782358 DOI: 10.1016/j.vetmic.2011.06.036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2011] [Revised: 06/23/2011] [Accepted: 06/28/2011] [Indexed: 10/18/2022]
Abstract
PROBLEM ADDRESSED Porcine circovirus type 2 (PCV2) and Salmonella enterica subspecies enterica serovar Choleraesuis (S. Choleraesuis) are two leading causes of economic loss in the swine industry. Although S. Choleraesuis infection occurs concurrently with PCV2-associated disease in many swine herds, the pathogenesis of concurrent infection with PCV2 and S. Choleraesuis remains largely undefined. OBJECTIVE We investigated the interactions between PCV2 and S. Choleraesuis in 20 Cesarean-derived, colostrum-deprived (CDCD) pigs randomly assigned to 4 groups (n=5 per group). METHODS AND APPROACH Pigs in the dual-infected and PCV2-infected groups were inoculated intranasally with PCV2 at 5 weeks of age, and pigs in the dual-infected and S. Choleraesuis-infected groups were inoculated intranasally with S. Choleraesuis at 7 weeks of age. Pigs in the control group served as uninfected controls. RESULTS After S. Choleraesuis inoculation, severe clinical signs, reduction of weight gain, and severe microscopic lung lesions were observed in dual-infected pigs compared to those in other groups. In addition, the pigs in the dual-infected group shed significantly (P=0.002) higher quantities of S. Choleraesuis in feces 12 days after S. Choleraesuis inoculation, and S. Choleraesuis was recovered from more tissues in this group 14 days after S. Choleraesuis inoculation. CONCLUSIONS These results indicate that prior PCV2 infection potentiates the severity of clinical signs, lung lesions, and fecal shedding and tissue dissemination of S. Choleraesuis in infected pigs. Therefore, dual infection of pigs with PCV2 and S. Choleraesuis may increase clinical effects of salmonellosis in the field.
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Tateno H, Toyota M, Saito S, Onuma Y, Ito Y, Hiemori K, Fukumura M, Matsushima A, Nakanishi M, Ohnuma K, Akutsu H, Umezawa A, Horimoto K, Hirabayashi J, Asashima M. Glycome diagnosis of human induced pluripotent stem cells using lectin microarray. J Biol Chem 2011; 286:20345-53. [PMID: 21471226 DOI: 10.1074/jbc.m111.231274] [Citation(s) in RCA: 146] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Induced pluripotent stem cells (iPSCs) can now be produced from various somatic cell (SC) lines by ectopic expression of the four transcription factors. Although the procedure has been demonstrated to induce global change in gene and microRNA expressions and even epigenetic modification, it remains largely unknown how this transcription factor-induced reprogramming affects the total glycan repertoire expressed on the cells. Here we performed a comprehensive glycan analysis using 114 types of human iPSCs generated from five different SCs and compared their glycomes with those of human embryonic stem cells (ESCs; nine cell types) using a high density lectin microarray. In unsupervised cluster analysis of the results obtained by lectin microarray, both undifferentiated iPSCs and ESCs were clustered as one large group. However, they were clearly separated from the group of differentiated SCs, whereas all of the four SCs had apparently distinct glycome profiles from one another, demonstrating that SCs with originally distinct glycan profiles have acquired those similar to ESCs upon induction of pluripotency. Thirty-eight lectins discriminating between SCs and iPSCs/ESCs were statistically selected, and characteristic features of the pluripotent state were then obtained at the level of the cellular glycome. The expression profiles of relevant glycosyltransferase genes agreed well with the results obtained by lectin microarray. Among the 38 lectins, rBC2LCN was found to detect only undifferentiated iPSCs/ESCs and not differentiated SCs. Hence, the high density lectin microarray has proved to be valid for not only comprehensive analysis of glycans but also diagnosis of stem cells under the concept of the cellular glycome.
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Aihara Y, Hayashi Y, Hirata M, Ariki N, Shibata S, Nagoshi N, Nakanishi M, Ohnuma K, Warashina M, Michiue T, Uchiyama H, Okano H, Asashima M, Furue MK. Induction of neural crest cells from mouse embryonic stem cells in a serum-free monolayer culture. THE INTERNATIONAL JOURNAL OF DEVELOPMENTAL BIOLOGY 2011; 54:1287-94. [PMID: 20711997 DOI: 10.1387/ijdb.103173ya] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
The neural crest (NC) is a group of cells located in the neural folds at the boundary between the neural and epidermal ectoderm. NC cells differentiate into a vast range of cells,including neural cells, smooth muscle cells, bone and cartilage cells of the maxillofacial region, and odontoblasts. The molecular mechanisms underlying NC induction during early development remain poorly understood. We previously established a defined serum-free culture condition for mouse embryonic stem (mES) cells without feeders. Here, using this defined condition, we have developed a protocol to promote mES cell differentiation into NC cells in an adherent monolayer culture. We found that adding bone morphogenetic protein (BMP)-4 together with fibroblast growth factor (FGF)-2 shifts mES cell differentiation into the NC lineage. Furthermore, we have established a cell line designated as P0-6 that is derived from the blastocysts of P0-Cre/Floxed-EGFP mice expressing EGFP in an NC-lineage-specific manner. P0-6 cells cultured using this protocol expressed EGFP. This protocol could be used to help clarify the mechanisms by which cells differentiate into the NC lineage and to assist the development of applications for clinical therapy.
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Nishimura Y, Kurisaki A, Nakanishi M, Ohnuma K, Ninomiya N, Komazaki S, Ishiura S, Asashima M. Inhibitory Smad proteins promote the differentiation of mouse embryonic stem cells into ependymal-like ciliated cells. Biochem Biophys Res Commun 2010; 401:1-6. [PMID: 20807502 DOI: 10.1016/j.bbrc.2010.08.099] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2010] [Accepted: 08/25/2010] [Indexed: 12/22/2022]
Abstract
Motile cilia play crucial roles in the maintenance of homeostasis in vivo. Defects in the biosynthesis of cilia cause immotile cilia syndrome, also known as primary ciliary dyskinesia (PCD), which is associated with a variety of complex diseases. In this study, we found that inhibitory Smad proteins, Smad7 and Smad6, significantly promoted the differentiation of mouse embryonic stem (ES) cells into ciliated cells. Moreover, these Smad proteins specifically induced morphologically distinct Musashi1-positive ciliated cells. These results suggest that inhibitory Smad proteins could be important regulators not only for the regulation of ciliated cell differentiation, but also for the subtype specification of ciliated cells during differentiation from mouse ES cells.
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Kano Y, Dobson P, Nakanishi M, Tsujii J, Ananiadou S. Text mining meets workflow: linking U-Compare with Taverna. ACTA ACUST UNITED AC 2010; 26:2486-7. [PMID: 20709690 PMCID: PMC2944208 DOI: 10.1093/bioinformatics/btq464] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
UNLABELLED Text mining from the biomedical literature is of increasing importance, yet it is not easy for the bioinformatics community to create and run text mining workflows due to the lack of accessibility and interoperability of the text mining resources. The U-Compare system provides a wide range of bio text mining resources in a highly interoperable workflow environment where workflows can very easily be created, executed, evaluated and visualized without coding. We have linked U-Compare to Taverna, a generic workflow system, to expose text mining functionality to the bioinformatics community. AVAILABILITY http://u-compare.org/taverna.html, http://u-compare.org.
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Nakanishi M, Hayashi Y, Mitane Y, Kobayashi M, Tsuboi M. Hydrogen-deuterium exchange studies of proteins and nucleic acids. Biophys J 2010; 32:621-3. [PMID: 19431397 DOI: 10.1016/s0006-3495(80)84995-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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65
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Danno T, Asaoka H, Nakanishi M, Fujii T, Ikeda Y, Kusano Y, Takada J. Formation mechanism of nano-crystalline β-Fe2O3particles with bixbyite structure and their magnetic properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/8/082003] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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66
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Nakatsuka D, Fujii T, Nakanishi M, Takada J. Synthesis of Ge substituted ilmenite and their magnetic and electronic properties. ACTA ACUST UNITED AC 2010. [DOI: 10.1088/1742-6596/200/1/012144] [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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67
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Tanaka N, Yoshimura Y, Kawashita M, Uematsu T, Miyazaki C, Toma N, Hanada K, Nakanishi M, Naito T, Kikuchi T, Akazawa T. Through-Silicon via Interconnection for 3D Integration Using Room-Temperature Bonding. ACTA ACUST UNITED AC 2009. [DOI: 10.1109/tadvp.2009.2027420] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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68
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Asashima M, Ito Y, Chan T, Michiue T, Nakanishi M, Suzuki K, Hitachi K, Okabayashi K, Kondow A, Ariizumi T. In vitro organogenesis from undifferentiated cells inXenopus. Dev Dyn 2009; 238:1309-20. [DOI: 10.1002/dvdy.21979] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023] Open
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69
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Demura Y, Ishizaki T, Nakanishi M, Ameshima S, Itoh H. Persistent diffuse pulmonary interstitial emphysema mimicking pulmonary emphysema. CASE REPORTS 2009; 2009:bcr2006074724. [DOI: 10.1136/bcr.2006.074724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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70
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Demura Y, Ishizaki T, Nakanishi M, Ameshima S, Itoh H. Persistent diffuse pulmonary interstitial emphysema mimicking pulmonary emphysema. BMJ Case Rep 2009; 2009:bcr09.2008.0882. [PMID: 21686584 DOI: 10.1136/bcr.09.2008.0882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
A 69-year-old male non-smoker with a history of atopic asthma presented with symptoms suggestive of chronic obstructive pulmonary disease and this appeared to be corroborated by lung function testing and a chest radiograph. However, a chest CT showed no evidence of pulmonary emphysema and instead demonstrated free air along the bronchovascular sheaths indicative of pulmonary interstistial emphysema, possibly caused by repeated prior exacerbations of asthma. His lung function tests and symptoms improved within months of being treated for his airways disease but the CT findings were unchanged after 2 years.
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Nakanishi M, Inoh Y, Kitamoto D, Furuno T. Nano vectors with a biosurfactant for gene transfection and drug delivery. J Drug Deliv Sci Technol 2009. [DOI: 10.1016/s1773-2247(09)50031-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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72
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Hayashi K, Endo T, Nakanishi M, Furukawa S, Jorbert FJ, Nagaki Y, Nomoto H, Tamiya N. On the Mode of Action of Snake Postsynaptic Neurotoxins. ACTA ACUST UNITED AC 2008. [DOI: 10.3109/15569548609012707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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73
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Nakanishi M, Kurisaki A, Hayashi Y, Warashina M, Ishiura S, Kusuda-Furue M, Asashima M. Directed induction of anterior and posterior primitive streak by Wnt from embryonic stem cells cultured in a chemically defined serum-free medium. FASEB J 2008; 23:114-22. [PMID: 18809738 DOI: 10.1096/fj.08-111203] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Formation of the primitive streak (PS) is the initial specification step that generates all the mesodermal and endodermal tissue lineages during early differentiation. Thus, a therapeutically compatible and efficient method for differentiation of the PS is crucial for regenerative medicine. In this study, we developed chemically defined serum-free culture conditions for the differentiation of embryonic stem (ES) cells into the PS-like cells. Cultures supplemented with Wnt showed induction of expression of a PS marker, the brachyury gene, followed by induction of the anterior PS markers goosecoid and foxa2, a posterior PS marker, evx1, and the endoderm marker sox17. Similar differentiation of PS by Wnt was also observed in human ES cells. Moreover, we revealed that the activation of the Wnt canonical pathway is essential for PS differentiation in mouse ES cells. These results demonstrated that Wnt is an essential and sufficient factor for the induction of the PS-like cells in vitro. These conditions of induction could constitute the initial step in generating therapeutically useful cells of the definitive endoderm lineage, such as hepatocytes and pancreatic endocrine cells, under chemically defined conditions.
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Tanokura M, Ito K, Nakanishi M, Lee WC, Zhi Y, Sasaki H, Zenno S, Saigo K, Kitade Y. Expansion of substrate specificity and the structural basis of AzoR from Escherichia coli. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308090958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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75
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Campelo VES, Neves MC, Nakanishi M, Voegels RL. Nasal cavity vascular leiomyoma: case report and literature review. Braz J Otorhinolaryngol 2008; 74:147-50. [PMID: 18392517 PMCID: PMC9450659 DOI: 10.1016/s1808-8694(15)30766-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Accepted: 05/24/2005] [Indexed: 10/26/2022] Open
Abstract
Liomyomas of the nasal cavity and paranasal sinuses are rare. They make up less than 1% of all leiomyomas in the human body. This is due to the paucity of smooth muscle in the nose. They are classified in three groups: leiomyoma, angiomyoma and epithelioid leiomyoma. Only 15 cases of vascular leiomyomas have been found in the literature. The treatment of choice is surgical excision. Hereby we present a new case and review the literature.
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