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Kawasaki T, Tsunoda-shimizu H, Inoue S, Kondo T, Yuminamochi T, Nakazawa T, Nakamura N, Yamane T, Sho M, Nakagomi H, Oyama T, Katoh R. Breast schistosomiasis japonica--a report of four Japanese cases. Histopathology 2009; 54:263-6. [PMID: 19207955 DOI: 10.1111/j.1365-2559.2008.03206.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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52
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Ashida T, Kojima T, Tanaka I, Yamane T. The crystal structure of Boc-Pro-Val-Gly-NH2, with a remark on the conformation of the valyl residues in peptides. ACTA ACUST UNITED AC 2009. [DOI: 10.1111/j.1399-3011.1986.tb02766.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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53
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Tsumoto C, Tominaga K, Okazaki H, Tanigawa T, Yamagami H, Watanabe K, Nakao T, Koh K, Watanabe T, Fujiwara Y, Yamane T, Oshitani N, Hino M, Higuchi K, Arakawa T. Long-term efficacy of Helicobacter pylori eradication in patients with idiopathic thrombocytopenic purpura: 7-year follow-up prospective study. Ann Hematol 2008; 88:789-93. [PMID: 19096845 DOI: 10.1007/s00277-008-0667-5] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2008] [Accepted: 12/06/2008] [Indexed: 02/07/2023]
Abstract
Helicobacter pylori eradication is useful for improvement of a half of patients with idiopathic thrombocytopenic purpura (ITP), but its long-term therapeutic efficacy has not been elucidated. We investigated the long-term efficacy of H. pylori eradication in 30 cases with ITP that were included in our previous study regarding the association between H. pylori infection and ITP. Twenty-one cases were positive and nine cases were negative for H. pylori infection. H. pylori eradication therapy including secondary regimen was successful in 20 cases, half (responder) of whom showed ITP remission 1 month later. Nine responders could be followed up for a long time and did not show re-infection of H. pylori. Eight of nine needed no medication except for eradication therapy. Another case remained in remission for 1 year but thereafter needed a steroid therapy due to the recurrence. Eight nonresponders could be followed up for a long time. All these cases showed a bad clinical course even though they received the other post-treatments including steroid therapy. Three of nine H. pylori-negative cases underwent eradication therapy after obtaining the written informed consent, but none of them showed improvement. Of these three cases, two cases could be followed up. Only one case remained a remission although receiving corticosteroid as a post-treatment. Conditions of H. pylori-negative ITP cases were usually unstable for a long time. H. pylori eradication has a short-term efficacy for about half of H. pylori-positive ITP patients, and the responders to the eradication therapy may receive a long-term clinical benefit without other therapies.
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Ho PL, Soares MB, Yamane T, Raw I. Reverse Biology Applied toMicrurus corallinus, a South American Coral Snake. ACTA ACUST UNITED AC 2008. [DOI: 10.3109/15569549509019467] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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55
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Hayashi MA, Nascimento FD, Kerkis A, Oliveira V, Oliveira EB, Pereira A, Rádis-Baptista G, Nader HB, Yamane T, Kerkis I, Tersariol IL. Cytotoxic effects of crotamine are mediated through lysosomal membrane permeabilization. Toxicon 2008; 52:508-17. [DOI: 10.1016/j.toxicon.2008.06.029] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2008] [Revised: 06/21/2008] [Accepted: 06/24/2008] [Indexed: 11/16/2022]
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Yokoi T, Ariji Y, Ohno F, Kuroki M, Ishihara S, Nakayama A, Isida Y, Abe A, Yajima T, Mizuno S, Yamane T, Kato T, Ariji E, Kurita K. P.313 Diagnostic criteria of cervical lymph nodes useing FDP-PET. J Craniomaxillofac Surg 2008. [DOI: 10.1016/s1010-5182(08)72101-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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57
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Okazaki S, Suzuki A, Mizushima T, Komeda H, Asano Y, Yamane T. Crystal structures of α-amino-∊-caprolactam racemase from Achromobacter obae. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308091691] [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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Takagi K, Mizushima T, Yashiroda H, Kato K, Tanaka K, Yamane T. Crystal structure of a chaperone complex that contributes to the assembly of yeast 20S proteasomes. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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59
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Kim S, Mizushima T, Saeki Y, Yamane T, Tanaka K, Kato K. The structural analysis of Rpn14 as the molecular chaperone for eukaryotic 26S proteasome assembly. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308089277] [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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60
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Suzuki A, Kato T, Mizushima T, Yamane T. A new type of precipitant, metal cyanide complex. Acta Crystallogr A 2008. [DOI: 10.1107/s0108767308092295] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
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61
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Nakanii N, Kondo K, Yabuuchi T, Tsuji K, Tanaka KA, Suzuki S, Asaka T, Yanagida K, Hanaki H, Kobayashi T, Makino K, Yamane T, Miyamoto S, Horikawa K. Absolute calibration of imaging plate for GeV electrons. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2008; 79:066102. [PMID: 18601438 DOI: 10.1063/1.2940217] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
An imaging plate has been used as a useful detector of energetic electrons in laser electron acceleration and laser fusion studies. The absolute sensitivity of an imaging plate was calibrated at 1 GeV electron energy using the injector Linac of SPring-8. The sensitivity curve obtained up to 100 MeV in a previous study was extended successfully to GeV range.
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Nakane T, Nakamae H, Kamoi H, Koh H, Takeoka Y, Sakamoto E, Kanashima H, Nakamae M, Ohta K, Terada Y, Koh KR, Yamane T, Hino M. Prognostic value of serum surfactant protein D level prior to transplant for the development of bronchiolitis obliterans syndrome and idiopathic pneumonia syndrome following allogeneic hematopoietic stem cell transplantation. Bone Marrow Transplant 2008; 42:43-9. [DOI: 10.1038/bmt.2008.73] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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63
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64
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Yamane T, Hayami H, Era S, Uchida Y, Nishiyama K, Nakagawa M. MP-01.11: Efficacy of cefdinir against acute uncomplicated cystitis. Urology 2007. [DOI: 10.1016/j.urology.2007.06.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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65
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Gomes CL, Konno K, Conceição IM, Ianzer D, Yamanouye N, Prezoto BC, Assakura MT, Rádis-Baptista G, Yamane T, Santos RA, de Camargo ACM, Hayashi MAF. Identification of novel bradykinin-potentiating peptides (BPPs) in the venom gland of a rattlesnake allowed the evaluation of the structure-function relationship of BPPs. Biochem Pharmacol 2007; 74:1350-60. [PMID: 17714693 DOI: 10.1016/j.bcp.2007.07.014] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2007] [Revised: 07/05/2007] [Accepted: 07/11/2007] [Indexed: 10/23/2022]
Abstract
Aiming to extend the knowledge about the diversity of bradykinin-potentiating peptides (BPPs) and their precursor proteins, a venom gland cDNA library from the South American rattlesnake (Crotalus dursissus terrificus, Cdt) was screened. Two novel homologous cDNAs encoding the BPPs precursor protein were cloned. Their sequence contain only one single longer BPP sequence with the typical IPP-tripeptide, and two short potential BPP-like molecules, revealing a unique structural organization. Several peptide sequences structurally similar to the BPPs identified in the precursor protein from Cdt and also from others snakes, were chemically synthesized and were bioassayed both in vitro and in vivo, by means of isolated smooth muscle preparations and by measurements of blood pressure in anaesthetized rats, respectively. We demonstrate here that a pyroglutamyl residue at the N-terminus with a high content of proline residues, even with the presence of a IPP moiety characteristic of typical BPPs, are not enough to determine a bradykinin-potentiating activity to these peptides. Taken together, our results indicate that the characterization of the BPPs precursor proteins and identification of characteristic glutamine residues followed by proline-rich peptide sequences are not enough to predict if these peptides, even with a pyroglutamyl residue at the N-terminus, will present the typical pharmacological activities described for the BPPs.
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Nascimento FD, Hayashi MAF, Kerkis A, Oliveira V, Oliveira EB, Rádis-Baptista G, Nader HB, Yamane T, Tersariol ILDS, Kerkis I. Crotamine mediates gene delivery into cells through the binding to heparan sulfate proteoglycans. J Biol Chem 2007; 282:21349-60. [PMID: 17491023 DOI: 10.1074/jbc.m604876200] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Recently we have shown that crotamine, a toxin from the South American rattlesnake Crotalus durissus terrificus venom, belongs to the family of cell-penetrating peptides. Moreover, crotamine was demonstrated to be a marker of centrioles, of cell cycle, and of actively proliferating cells. Herein we show that this toxin at non-toxic concentrations is also capable of binding electrostatically to plasmid DNA forming DNA-peptide complexes whose stabilities overcome the need for chemical conjugation for carrying nucleic acids into cells. Interestingly, crotamine demonstrates cell specificity and targeted delivery of plasmid DNA into actively proliferating cells both in vitro and in vivo, which distinguishes crotamine from other known natural cell-penetrating peptides. The mechanism of crotamine penetration and cargo delivery into cells was also investigated, showing the involvement of heparan sulfate proteoglycans in the uptake phase, which is followed by endocytosis and peptide accumulation within the acidic endosomal vesicles. Finally, the permeabilization of endosomal membranes induced by crotamine results in the leakage of the vesicles contents to the cell cytosol.
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Yamane T, Takahashi J, Yamashita N. Effect of electron-irradiation on precipitation in Fe-N alloy. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/00337577908234499] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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69
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Umakoshi Y, Yamaguchi M, Yamane T. Effects of non-stoichiometry on the high-temperature deformation of Ni2AITi. ACTA ACUST UNITED AC 2006. [DOI: 10.1080/01418618508237631] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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70
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Nishio Y, Yamane T, Takahashi T. Crystallization behavior of high-density polyethylene in an oriented blend with polypropylene. J MACROMOL SCI B 2006. [DOI: 10.1080/00222348408229360] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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71
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Nihei KI, Kato MJ, Yamane T, Konno K. An efficient and versatile synthesis of all structural types of acylpolyamine spider toxins. Tetrahedron 2006. [DOI: 10.1016/j.tet.2006.06.051] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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72
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Selvanayagam S, Velmurugan D, Yamane T. Iterative ACORN as a high throughput tool in structural genomics. INDIAN JOURNAL OF BIOCHEMISTRY & BIOPHYSICS 2006; 43:211-6. [PMID: 17133764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/12/2023]
Abstract
High throughput macromolecular structure determination is very essential in structural genomics as the available number of sequence information far exceeds the number of available 3D structures. ACORN, a freely available resource in the CCP4 suite of programs is a comprehensive and efficient program for phasing in the determination of protein structures, when atomic resolution data are available. ACORN with the automatic model-building program ARP/wARP and refinement program REFMAC is a suitable combination for the high throughput structural genomics. ACORN can also be run with secondary structural elements like helices and sheets as inputs with high resolution data. In situations, where ACORN phasing is not sufficient for building the protein model, the fragments (incomplete model/dummy atoms) can again be used as a starting input. Iterative ACORN is proved to work efficiently in the subsequent model building stages in congerin (PDB-ID: lis3) and catalase (PDB-ID: 1gwe) for which models are available.
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Date T, Yamane T, Inada K, Matsuo S, Miyanaga S, Sugimoto K, Shibayama K, Taniguchi I, Mochizuki S. Plasma brain natriuretic peptide concentrations in patients undergoing pulmonary vein isolation. Heart 2006; 92:1623-7. [PMID: 16740921 PMCID: PMC1861210 DOI: 10.1136/hrt.2005.083022] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
Abstract
OBJECTIVE To examine whether raised plasma brain natriuretic peptide (BNP) concentrations decrease after successful pulmonary vein isolation (PVI) in patients with atrial fibrillation (AF). METHODS 53 patients (mean age 53 years) with drug-refractory, paroxysmal lone AF underwent segmental ostial PVI. Blood samples were collected before and after PVI. BNP concentrations were determined by immunoassays. RESULTS Median plasma BNP concentrations were significantly higher in patients with lone AF than in controls (patients with supraventricular tachyarrhythmias, n = 21) (64.6 (71.9) v 13.9 (7.8) pg/ml, p < 0.01). AF recurred in 21 patients after the initial PVI procedure (recurrent AF group), and the others were free from AF without antiarrhythmic drugs (non-recurrent AF group). BNP concentrations were significantly decreased by PVI in the non-recurrent AF group (38.9 (39.1) to 18.3 (16.1) pg/ml, p < 0.01) but not in the recurrent AF group. CONCLUSIONS Raised plasma BNP concentrations decreased after successful segmental ostial PVI in patients with AF.
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Abstract
Different approaches have been developed for the introduction of macromolecules, proteins and DNA into target cells. Viral (retroviruses, lentiviruses, etc.) and nonviral (liposomes, bioballistics etc.) vectors as well as lipid particles have been tested as DNA delivery systems. However, all of them share several undesirable effects that are difficult to overcome, such as unwanted immunoresponse and limited cell targeting. The discovery of the cell penetrating peptides (CPPs) showing properties of macromolecules carriers and enhancers of viral vectors, opened new opportunities for the delivery of biologically active cargos, including therapeutically relevant genes into various cells and tissues. This review summarizes recent data about the best characterized CPPs as well as those sharing cell-penetrating and cargo delivery properties despite differing in the primary sequence. The putative mechanisms of CPPs penetration into cells and interaction with intracellular structures such as chromosomes, cytoskeleton and centrioles are addressed. We further discuss recent developments in overcoming the lack of cells specificity, one of the main obstacles for CPPs application in gene therapy. In particular, we review a newly discovered affinity of CPPs to actively proliferating cells.
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Sekar K, Gayathri D, Velmurugan D, Jeyakanthan J, Yamane T, Poi MJ, Tsai MD. Third calcium ion found in an inhibitor-bound phospholipase A2. ACTA CRYSTALLOGRAPHICA SECTION D: BIOLOGICAL CRYSTALLOGRAPHY 2006; 62:392-7. [PMID: 16552140 DOI: 10.1107/s0907444906001612] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2005] [Accepted: 01/14/2006] [Indexed: 05/07/2023]
Abstract
The lipolytic enzyme phospholipase A2 plays a crucial role in lipid metabolism and catalyzes hydrolysis of the fatty-acid ester bond at the sn-2 position of phospholipids. Here, the crystal structure (1.7 A resolution) of the triple mutant (K53,56,121M) of bovine pancreatic phospholipase A2 complexed with an organic molecule, p-methoxybenzoic acid (anisic acid), is reported. Residues 60-70 (the surface-loop residues) are ordered and adopt conformations which are different from those normally found in structures in which a second calcium ion is present. It is interesting to note that for the first time a third calcium ion has been identified. In addition, four Tris (2-amino-2-hydroxymethyl-1,3-propanediol) molecules were located. It is believed that one of the Tris molecules plays a role in clamping the third calcium ion and that another is involved in controlling the dynamics of the surface loop through hydrogen bonds.
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