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Ando T, Ito K, Yuki S, Saito R, Nakano S, Nakatsumi H, Kawamoto Y, Dazai M, Miyashita K, Hatanaka K, Harada K, Miyagishima T, Hisai H, Ishiguro A, Ueda A, Kato T, Sasaki T, Shindo Y, Yokota I, Takagi R, Sakata Y, Komatsu Y. P-98 HGCSG1902: Multicenter, prospective, observational study for cases with dysgeusia caused by chemotherapy for gastrointestinal cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.04.180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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Asada H, Nakamura-Nishimura Y, Miyagawa F, Miyashita K, Ommori R, Azukizawa H. 480 The characteristics of patients with persistent HHV-6 infection after drug-induced hypersensitivity syndrome/drug reaction with eosinophilia and systemic symptoms (DIHS/DRESS). J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yuki S, Komatsu Y, Kawamoto Y, Nakatsumi H, Takahashi N, Shichinohe T, Okuda H, Ishiguro A, Harada K, Iwanaga I, Hatanaka K, Oomori K, Nakamura M, Senmaru N, Iwai K, Koike M, Shinohara T, Miyashita K, Ito Y, Taketomi A, Hirano S, Sakamoto N. NORTH/HGCSG1003: A phase II study evaluating the safety and efficacy of FOLFOX as adjuvant chemotherapy for patients with stage III colon cancer: Comparison with medical oncologists and surgeons. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy151.222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nakamura-Nishimura Y, Miyagawa F, Miyashita K, Ommori R, Azukizawa H, Asada H. 561 Serum thymus and activation-regulated chemokine (TARC) is a useful marker for assessing the clinical and immunological condition of DRESS/DIHS patients. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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Nakamura-Nishimura Y, Miyagawa F, Miyashita K, Ommori R, Azukizawa H, Asada H. Serum thymus and activation-regulated chemokine is associated with the severity of drug reaction with eosinophilia and systemic symptoms/drug-induced hypersensitivity syndrome. Br J Dermatol 2018; 178:1430-1432. [PMID: 29150836 DOI: 10.1111/bjd.16132] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y Nakamura-Nishimura
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - F Miyagawa
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - K Miyashita
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - R Ommori
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - H Azukizawa
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
| | - H Asada
- Department of Dermatology, Nara Medical University School of Medicine, 840 Shijo-cho, Kashihara, Nara, 634-8522, Japan
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Kawashima N, Matsuhashi M, Hamano T, Nagami K, Iijima M, Isogai M, Komachi M, Furukado T, Kumon A, Miyashita K, Sato A, Hasegawa K. Gait improvement and rehabilitation of Parkinson's disease using Honda Walking Assist. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Miyashita K, Miyagawa F, Ommori R, Nakamura Y, Azukizawa H, Asada H. 445 HHV-6-derived microRNAs in the serum/PBMC of DIHS/DRESS patients. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.07.641] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Miyashita K, Sabit H. P10.20 Retrospective analyses of clinical characteristics of diffuse midline glioma. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.338] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Kono M, Arakawa Y, Mineharu Y, Ohka F, Kinoshita M, Nakae S, Miyashita K, Iuchi T, Hirose Y, Natsume A, Nakada M, Sasaki H. P09.50 Phase I trial of temozolomide plus bevacizumab for newly diagnosed high-grade gliomas in the elderly: Interim report. Neuro Oncol 2017. [DOI: 10.1093/neuonc/nox036.306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Sasaki T, Yuki S, Kawamoto Y, Harada K, Meguro T, Miyagishima T, Nakamura M, Sato A, Iwanaga I, Tateyama M, Hatanaka K, Eto K, Okuda H, Muto O, Abe M, Oba A, Kato S, Miyashita K, Sakata Y, Komatsu Y. 190P Observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Sub-group analysis by the Glasgow Prognostic Score (GPS). Ann Oncol 2016. [DOI: 10.1016/s0923-7534(21)00348-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
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Sasaki T, Yuki S, Kawamoto Y, Harada K, Meguro T, Miyagishima T, Nakamura M, Sato A, Iwanaga I, Tateyama M, Hatanaka K, Eto K, Okuda H, Muto O, Abe M, Oba A, Kato S, Miyashita K, Sakata Y, Komatsu Y. 190P Observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Sub-group analysis by the Glasgow Prognostic Score (GPS). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw581.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Nakajima K, Usui S, Shinohata R, Miyashita K, Imamura S, Kobayashi J, Machida T, Sumino H, Murakami M. Most of the hepatic triglyceride lipase (HTGL) is bound to apoE-rich HDL in post-heparin plasma. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.563] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Miyagishima T, Yuki S, Nakatsumi H, Kawamoto Y, Muranaka T, Sawada K, Kobayashi Y, Sasaki T, Nakamura M, Sato A, Iwanaga I, Tateyama M, Hatanaka K, Eto K, Okuda H, Muto O, Abe M, Oba A, Kato S, Miyashita K, Sakata Y, Komatsu Y. P-152 Observational Cohort Study of 1st line Bevacizumab Combined with Chemotherapy in Metastatic Colorectal Cancer (HGCSG0802): Sub-group Analysis by the Glasgow Prognostic Score (GPS). Ann Oncol 2016. [DOI: 10.1093/annonc/mdw199.146] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Komatsu Y, Yuki S, Nakatsumi H, Sawada K, Hatanaka K, Kato T, Meguro T, Nakamura M, Iwanaga I, Uebayashi M, Tateyama M, Eto K, Kudo M, Kato K, Okuda H, Sogabe S, Miyagishima T, Miyashita K, Sakamoto N, Sakata Y. 172P Updated analysis: observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Comparison of infusional FU/oxaliplatin (OX) + BV and oral FU/OX + BV. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv523.33] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nakatsumi H, Yuki S, Kawamoto Y, Muranaka T, Hatanaka K, Kato T, Meguro T, Nakamura M, Iwanaga I, Uebayashi M, Tateyama M, Eto K, Kudo M, Kato S, Okuda H, Sogabe S, Miyashita K, Sakata Y, Sakamoto N, Komatsu Y. 2092 Updated analysis: Observational cohort study of 1st line bevacizumab combined with chemotherapy in metastatic colorectal cancer (HGCSG0802): Comparison of infusional FU/oxaliplatin(OX)+BV and oral FU/OX+BV. Eur J Cancer 2015. [DOI: 10.1016/s0959-8049(16)31014-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Iwanaga I, Yuki S, Fukushima H, Takahashi N, Shichinohe T, Kusumi T, Nakamura F, Sogabe S, Hatanaka K, Oomori K, Misawa K, Senmaru N, Iwai K, Shinohara T, Koike M, Miyashita K, Amano T, Ito Y, Sakamoto N, Taketomi A, Hirano S, Komatsu Y. P-249 Safety analysis of FOLFOX as adjuvant chemotherapy for stage III colon cancer in phase II study (NORTH/HGCSG1003) - an analysis of surgeons vs oncologists. Ann Oncol 2015. [DOI: 10.1093/annonc/mdv233.246] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tokuda M, Fujisawa M, Miyashita K, Kawakami Y, Morimoto-Yamashita Y, Torii M. Involvement of TRPV1 and AQP2 in hypertonic stress by xylitol in odontoblast cells. Connect Tissue Res 2015; 56:44-9. [PMID: 25372661 DOI: 10.3109/03008207.2014.984804] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
AIM To examine the responses of mouse odontoblast-lineage cell line (OLC) cultures to xylitol-induced hypertonic stress. METHODOLOGY OLCs were treated with xylitol, sucrose, sorbitol, mannitol, arabinose and lyxose. Cell viability was evaluated using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium assay. The expression of transient receptor potential vanilloids (TRPV) 1, 3 and 4 was detected using a reverse transcriptase-polymerase chain reaction (RT-PCR) assay. The expression of aquaporin (AQP) 2 was detected using immunofluorescence and Western blotting analysis. The expression of interleukin-6 (IL-6) under xylitol-induced hypertonic stress was assessed using an enzyme-linked immunosorbent assay (ELISA). Small interfering ribonucleic acid (siRNA) for AQP-2 was used to inhibition assay. RESULTS Xylitol-induced hypertonic stress did not decrease OLC viability, unlike the other sugars tested. OLCs expressed TRPV1, 3 and 4 as well as AQP2. Xylitol inhibited lipopolysaccharide (LPS)-induced IL-6 expression after 3 h of hypertonic stress. TRPV1 mRNA expression was upregulated by xylitol. Costimulation with HgCl2 (AQP inhibitor) and Ruthenium red (TRPV1 inhibitor) decreased cell viability with xylitol stimulation. OLCs treated with siRNA against TRPV1 exhibited decreased cell viability with xylitol stimulation. CONCLUSION OLCs have high-cell viability under xylitol-induced hypertonic stress, which may be associated with TRPV1 and AQP2 expressions.
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Affiliation(s)
- M Tokuda
- Department of Restorative Dentistry and Endodontology, Kagoshima University Graduate School of Medical and Dental Sciences , Kagoshima , Japan
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Kitabayashi T, Nakada M, Furuta T, Miyashita K, Kinoshita M, Tanaka S, Hayashi Y. NC-09 * THE IMPACT OF SUPRATOTAL RESECTION FOR GLIOBLASTOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou263.9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Fueur T, Nakada M, Hemragul S, Dong Y, Miyashita K, Minamoto T, Hayashi Y. DD-05 * GSK3BETA INHIBITORY DRUGS ATTENUATE INVASION OF GLIOBLASTOMA CELLS. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou246.5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Shimada K, Takinishi Y, Kobayashi K, Sekikawa T, Saitou Y, Toshima H, Hisamatsu A, Nunoue T, Kitahara Y, Miyashita K, Kinugsa E. Retrospective Study of S-1 Based Chemotherapy in Elderly Patients with Advanced Gastric Cancer. Ann Oncol 2014. [DOI: 10.1093/annonc/mdu334.67] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Ganesan K, Suresh Kumar K, Subba Rao P, Tsukui Y, Bhaskar N, Hosokawa M, Miyashita K. Studies on chemical composition of three species of Enteromorpha. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.bionut.2014.04.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Takatani N, Nishida K, Sawabe T, Maoka T, Miyashita K, Hosokawa M. Identification of a novel carotenoid, 2′-isopentenylsaproxanthin, by Jejuia pallidilutea strain 11shimoA1 and its increased production under alkaline condition. Appl Microbiol Biotechnol 2014; 98:6633-40. [DOI: 10.1007/s00253-014-5702-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2013] [Revised: 03/07/2014] [Accepted: 03/17/2014] [Indexed: 01/13/2023]
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Yoshimasu K, Mure K, Takeshita T, Takemura S, Tsuno K, Miyashita K. EPA-0382 – Genetic alcohol sensitivity as an indicator of mental disorders. Eur Psychiatry 2014. [DOI: 10.1016/s0924-9338(14)77805-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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Yoshikawa A, Nakada M, Kita D, Watanabe T, Kinoshita M, Miyashita K, Furuta T, Hamada JI, Uchiyama N, Hayashi Y. Visualization of angiographical arteriovenous shunting in perisylvian glioblastomas. Acta Neurochir (Wien) 2013; 155:715-9. [PMID: 23435867 DOI: 10.1007/s00701-013-1650-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 02/08/2013] [Indexed: 10/27/2022]
Abstract
BACKGROUND Arteriovenous shunting visualized by angiography is one of the major features of glioblastomas, and the visualization is dependent on the presence of extensive shunting. Extensive arteriovenous shunting is associated with the risk of poorly controlled intraoperative bleeding. When a tumor with extensive arteriovenous shunting is located in close proximity to the eloquent regions of the brain, a meticulous surgical procedure is necessary. In the present study, the site-oriented visualization of angiographical arteriovenous shunting was evaluated from the perspective of surgical treatment, with a particular focus on the perisylvian region that is in close proximity to motor and language regions (dominant hemisphere), as well as large arteries and veins. METHODS Twenty-six consecutive patients underwent a resection of glioblastoma between February 2007 and September 2012. All patients were presurgically examined using digital subtraction angiography. The patients were subdivided into the following two groups based on the location of the tumor: 1) perisylvian glioblastoma (18 patients) and 2) non-perisylvian glioblastoma (eight patients). Angiography to detect the arteriovenous shunting was performed. In addition, the number of intratumoral vessels, tumor proliferative activity (MIB-1 labeling index), and volume of intraoperative bleeding were evaluated and compared between the two groups. RESULTS Angiographical arteriovenous shunting was definitively visualized in 13 of 18 (72 %) perisylvian glioblastomas, in contrast to only one of eight (13 %) non-perisylvian glioblastomas (p = 0.007). There were no significant differences between the two groups with respect to the number of intratumoral vessels, MIB-1 labeling index, and volume of intraoperative bleeding. However, massive intraoperative bleeding of > 2,000 mL occurred in one perisylvian glioblastoma patient. CONCLUSIONS Glioblastomas in the perisylvian region tend to be associated with extensive arteriovenous shunting that can be definitively visualized by performing an angiography. Because arteriovenous shunting carries the risk of intraoperative bleeding, perisylvian glioblastomas-particularly in the dominant hemisphere-should be resected with a meticulous surgical procedure and strategy.
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Park CK, Kim YH, Kim JW, Kim TM, Choi SH, Kim YJ, Choi BS, Lee SH, Kim CY, Kim IH, Lee DZ, Kheder A, Forbes M, Craven I, Hadjivassiliou M, Shonka NA, Kessinger A, Aizenberg MR, Weller M, Meisner C, Platten M, Simon M, Nikkhah G, Papsdorf K, Sabel M, Braun C, Reifenberger G, Wick W, Alexandru D, Haghighi B, Muhonen MG, Chamberlain MC, Sumrall AL, Burri S, Brick W, Asher A, Murillo-Medina K, Guerrero-Maldonado A, Ramiro AJ, Cervantes-Sanchez G, Erazo-Valle-Solis AA, Garcia-Navarro V, Sperduto PW, Shanley R, Luo X, Kased N, Sneed PK, Roberge D, Chao S, Weil R, Suh J, Bhatt A, Jensen A, Brown PD, Shih H, Kirkpatrick J, Gaspar LE, Fiveash J, Chiang V, Knisely J, Sperduto CM, Lin N, Mehta MP, Anderson MD, Raghunathan A, Aldape KD, Fuller GN, Gilbert MR, Robins HI, Wang M, Gilbert MR, Chakravarti A, Grimm S, Penas-Prado M, Chaudhary R, Anderson PJ, Elinzano H, Gilbert RA, Mehta M, Aoki T, Ueba T, Arakawa Y, Miyatake SI, Tsukahara T, Miyamoto S, Nozaki K, Taki W, Matsutani M, Shakur SF, Bit-Ivan E, Watkin WG, Farhat HI, Merrell RT, Zwinkels H, Dorr J, Kloet A, Taphoorn MJ, Vecht CJ, Bogdahn U, Stockhammer G, Mahapatra A, Hau P, Schuknecht B, van den Bent M, Heinrichs H, Yust-Katz S, Liu V, Sanghee K, Groves M, Puduvalli V, Levin V, Conrad C, Colman H, Hsu S, Yung AW, Gilbert MR, Kunz M, Armbruster L, Thon N, Jansen N, Lutz J, Herms J, Egensperger R, Eigenbrod S, Kretzschmar H, La CF, Tonn JC, Kreth FW, Brandes AA, Franceschi E, Agati R, Poggi R, Dall'Occa P, Bartolotti M, Di Battista M, Marucci G, Girardi F, Ermani M, Sherman W, Raizer J, Grimm S, Ruckser R, Tatzreiter G, Pfisterer W, Oberhauser G, Honigschnabel S, Aboul-Enein F, Ausch C, Kitzweger E, Hruby W, Sebesta C, Green RM, Woyshner EA, Suchorska B, Jansen NL, Janssen H, Kretzschmar H, Simon M, Hentschel B, Poepperl G, Kreth FW, Linn J, LaFougere C, Weller M, Tonn JC, Suchorska B, Jansen NL, Graute V, Eigenbrod S, Bartenstein P, Kreth FW, LaFougere C, Tonn JC, Hassanzadeh B, Tohidi V, Levacic D, Landolfi JC, Singer S, DeBraganca K, Omuro A, Grommes C, Omar AI, Jalan P, Pandav V, Bekker S, Fuente MIDL, Kaley T, Zhao S, Chen X, Soffietti R, Magistrello M, Bertero L, Bosa C, Crasto SG, Garbossa D, Lolli I, Trevisan E, Ruda R, Ruda R, Bertero L, Bosa C, Trevisan E, Pace A, Carapella C, Dealis C, Caroli M, Faedi M, Bomprezzi C, Thomas AA, Dalmau J, Gresa-Arribas N, Fadul CE, Kumthekar PU, Raizer J, Grimm S, Herrada J, Antony N, Richards M, Gupta A, Landeros M, Arango C, Campos-Gines AF, Friedman P, Wilson H, Streeter JC, Cohen A, Gilreath J, Sageser D, Ye X, Bell SD, McGregor J, Bourekas E, Cavaliere R, Newton H, Sul J, Odia Y, Zhang W, Shih J, Butman JA, Hammoud D, Kreisl TN, Iwamoto F, Fine HA, Berriel LG, Santos FN, Levy AC, Fanelli MF, Chinen LT, da Costa AA, Bourekas E, Wayne Slone H, Bell SD, McGregor J, Bokstein F, Blumenthal DT, Shpigel S, Phishniak L, Yust-Katz S, Garciarena P, Liue D, Yuan Y, Groves MD, Wong ET, Villano JL, Engelhard HH, Ram Z, Sahebjam S, Millar BA, Sahgal A, Laperriere N, Mason W, Levin VA, Hess KR, Choucair AK, Flynn PJ, Jaeckle KA, Kyritsis AP, Yung WKA, Prados MD, Bruner JM, Ictech S, Nghiemphu PL, Lai A, Green RM, Cloughesy TF, Zaky W, Gilles F, Grimm J, Bluml S, Dhall G, Rosser T, Randolph L, Wong K, Olch A, Krieger M, Finlay J, Capellades J, Verger E, Medrano S, Gonzalez S, Gil M, Reynes G, Ribalta T, Gallego O, Segura PP, Balana C, Gwak HS, Joo J, Kim S, Yoo H, Shin SH, Han JY, Kim HT, Yun T, Lee JS, Lee SH, Kim W, Vogelbaum MA, Wang M, Peereboom DM, Macdonald DR, Giannini C, Suh JH, Jenkins RB, Laack NN, Brackman DG, Shrieve DC, Souhami L, Mehta MP, Leibetseder A, Wohrer A, Ackerl M, Flechl B, Sax C, Spiegl-Kreinecker S, Pichler J, Widhalm G, Dieckmann K, Preusser M, Marosi C, Sebastian C, Alejandro M, Bernadette C, Naomi A, Kavan P, Sahebjam S, Garoufalis E, Guiot MC, Muanza T, Del Maestro R, Petrecca K, Sharma R, Curry R, Joyce J, Rosenblum M, Jaffe E, Matasar M, Lin O, Fisher R, Omuro A, Yin C, Iwamoto FM, Fraum TJ, Nayak L, Diamond EL, DeAngelis LM, Pentsova E, Vera-Bolanos E, Gilbert MR, Aldape K, Necesito-Reyes MJ, Fouladi M, Gajjar A, Goldman S, Metellus P, Mikkelsen T, Omuro A, Packer R, Partap S, Pollack IF, Prados M, Ian Robins H, Soffietti R, Wu J, Armstrong TS, Nakada M, Hayashi Y, Miyashita K, Kinoshita M, Furuta T, Sabit H, Kita D, Hayashi Y, Uchiyam N, Kawakami K, Minamoto T, Hamada JI, Diamond EL, Rosenblum M, Heaney M, Carrasquillo J, Krauthammer A, Nolan C, Kaley TJ, Gil MJ, Fuster J, Balana C, Benavides M, Mesia C, Etxaniz O, Canellas J, Perez-Martin X, Hunter K, Johnston SK, Bridge CA, Rockne RC, Guyman L, Baldock AL, Rockhill JK, Mrugala MM, Beard BC, Adair JE, Kiem HP, Swanson KR, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh JJ, Theeler BJ, Ellezam B, Melguizo-Gavilanes I, Shonka NA, Bruner JM, Puduvalli VK, Taylor JW, Flanagan E, O'Neill B, Seigal T, Omuro A, DeAngelis L, Baerhing J, Hoang-Xuan K, Chamberlain M, Batchelor T, Nishikawa R, Pinto F, Blay JY, Korfel A, Schiff D, Fu BD, Kong XT, Bota D, Omuro A, Beal K, Ivy P, Gutin P, Wu N, Kaley T, Karimi S, DeAngelis L, Pentsova H, Nolan C, Grommes C, Chan T, Mathew R, Droms L, Shimizu F, Tabar V, Grossman S, Yovino S, Campian J, Wild A, Herman J, Brock M, Balmanoukian A, Ye X, Portnow J, Badie B, Synold T, Lacey S, D'Apuzzo M, Frankel P, Chen M, Aboody K, Letarte N, Gabay MP, Bressler LR, Stachnik JM, Villano JL, Jaeckle KA, Anderson SK, Willson A, Moreno-Aspitia A, Colon-Otero G, Patel T, Perez E, Peters KB, Reardon DA, Vredenburgh JJ, Desjardins A, Herndon JE, Coan A, McSherry F, Lipp E, Brickhouse A, Massey W, Friedman HS, Alderson LM, Desjardins A, Ranjan T, Peters KB, Friedman HS, Vredenburgh JJ, Ranjan T, Desjardins A, Peters KB, Alderson L, Kirkpatrick J, Herndon J, Bailey L, Sampson J, Friedman AH, Friedman H, Vredenburgh J, Welch MR, Omuro A, Grommes C, Westphal M, Bach F, Reuter D, Ronellenfitsch M, Steinbach J, Pietsch T, Connelly J, Hamza MA, Puduvalli V, Neal ML, Trister AD, Ahn S, Bridge C, Lange J, Baldock A, Rockne R, Mrugala M, Rockhill JK, Lai A, Cloughesy T, Swanson KR, Neuwelt AJ, Nguyen TM, Tyson RM, Nasseri M, Neuwelt EA, Bubalo JS, Barnes PD, Phuphanich S, Hu J, Rudnick J, Chu R, Yu J, Naruse R, Ljubimova J, Sanchez C, Guevarra A, Naor R, Black K, Mahta A, Bhavsar TM, Herath K, Huang C, McClain J, Rizzo K, Sheehan J, Chamberlain M, Glantz M, McClain J, Glantz MJ, Zoccoli C, Nicholas MK, Xie T, White D, Liker S, Gajewski T, Selfridge J, Piccioni DE, Zurayk M, Mody R, Quan J, Li S, Chen W, Chou A, Liau L, Green R, Cloughesy T, Lai A, Gomez-Molinar V, Ruiz-Gonzalez S, Valdez-Vazquez R, Arrieta O, Stenner JI. CLIN-NEURO/MEDICAL ONCOLOGY. Neuro Oncol 2012. [DOI: 10.1093/neuonc/nos229] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Uemura M, Uno H, Umesaki A, Miyashita K, Nagatsuka K, Toyoda K, Minematsu K, Naritomi H. Clinical Features of Lateral Medullary Infarction with Ipsilateral Hemiparesis (P03.026). Neurology 2012. [DOI: 10.1212/wnl.78.1_meetingabstracts.p03.026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Honda K, Arai T, Kobayashi S, Tsuda Y, Miyashita K. Migratory patterns of exotic brown trout Salmo trutta in south-western Hokkaido, Japan, on the basis of otolith Sr:Ca ratios and acoustic telemetry. J Fish Biol 2012; 80:408-426. [PMID: 22268438 DOI: 10.1111/j.1095-8649.2011.03183.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Acoustic telemetry and microchemical analysis of otolith strontium-calcium ratios were used to evaluate how exotic brown trout Salmo trutta have responded to Japanese riverine environments of south-western Hokkaido by observing their migratory patterns. The existence of anadromous S. trutta was also verified. Most S. trutta caught in rivers for otolith analysis were freshwater residents (95·6%), whereas those caught in the sea were mainly smolts (91·3%), which had just migrated from rivers during spring. Anadromous S. trutta (n = 6) were captured in rivers and in the sea, confirming the existence of mature pre- and post-spawning fish. According to telemetry results, both mature and immature S. trutta used the river in winter, and their estimated sea-run timings showed individual differences. Through the combination of these two methods, migratory patterns on various spatio-temporal scales were observed. This first documentation of the presence of both male and female anadromous S. trutta in the same region within Japan indicated the risk of further colonization of exotic S. trutta via oceanic migration.
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Affiliation(s)
- K Honda
- Graduate School of Environmental Science, Hokkaido University, 3-1-1 Minato, Hakodate, Hokkaido 041-8611, Japan.
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Chiba T, Matsuzaka Y, Warita T, Sugoh T, Miyashita K, Tajima A, Nakamura M, Inoko H, Sato T, Kimura M. NFKBIL1 confers resistance to experimental autoimmune arthritis through the regulation of dendritic cell functions. Scand J Immunol 2011; 73:478-85. [PMID: 21284685 DOI: 10.1111/j.1365-3083.2011.02524.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
We and others have reported that human NF-κB inhibitor-like-1 (NFKBIL1) was a putative susceptible gene for autoimmune diseases such as rheumatoid arthritis (RA). However, its precise role in the pathogenesis of RA is still largely unknown. In this study, we generated transgenic mice expressing human NFKBIL1 (NFKBIL1-Tg) and examined whether NFKBIL1 plays some role(s) in the development of autoimmune arthritis. In both a collagen-induced arthritis model and a collagen antibody-induced arthritis model, NFKBIL1-Tg mice showed resistance to arthritis compared to control mice, indicating that the gene product of NFKBIL1 was involved in the control of thusly induced arthritis. Total spleen cells of NFKBIL1-Tg mouse showed decreased proliferation to mitogenic stimuli, consistent with its resistance to arthritis. Unexpectedly, purified T cells of NFKBIL1-Tg mouse showed increased proliferation and cytokine production. This apparent discrepancy was accounted for by the impaired functions of antigen-presenting cells of NFKBIL1-Tg mouse; both T/B cell-depleted spleen cells and bone marrow-derived dendritic cells of the Tg mouse induced less prominent proliferation and IL-2 production of T cells. Furthermore, dendritic cells (DCs) derived from NFKBIL1-Tg mouse showed lower expression of co-stimulatory molecules and decreased production of inflammatory cytokines when they were activated by lipopolysaccharide. Taken together, these results indicated that NFKBIL1 affected the pathogenesis of RA at least in part through the regulation of DC functions.
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Affiliation(s)
- T Chiba
- Department of Immunology, Tokai University School of Medicine, Isehara, Kanagawa, Japan
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Honda K, Kagiwada H, Tojo N, Miyashita K. Riverine environmental characteristics and seasonal habitat use by adult Sakhalin taimen Hucho perryi. J Fish Biol 2010; 77:1526-1541. [PMID: 21078016 DOI: 10.1111/j.1095-8649.2010.02790.x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The study identified seasonal habitat use by endangered adult Sakhalin taimen Hucho perryi and the environmental characteristics of their habitat (water depth, amount of riparian forest and sinuosity). Fifteen adult H. perryi with acoustic tags were tracked by towing an acoustic receiver with a canoe in the Bekanbeushi River system in eastern Hokkaido Island, Japan, during each month from late April to late November 2008. Individuals mainly used midstream (shallower than downstream) habitats in all seasons. These locations were generally characterized by relatively dense riparian forests and high sinuosity, indicating the presence of pools. In spring, individuals used habitats with less riparian forest cover compared to mean value of the river channel. From spring to autumn, adult H. perryi selected limnologically complex habitats with meandering channels. From summer to autumn, individuals selected habitats with more riparian forest cover. The inverse relationship between H. perryi detection and riparian forest area in spring was a result of seasonal defoliation in deciduous riparian forests.
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Affiliation(s)
- K Honda
- Field Science Center for Northern Biosphere, Hokkaido University, Aikappu Akkeshi, Hokkaido 088-1113, Japan. hokudai.ac.jp
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Takahara M, Shiraiwa T, Kaneto H, Yasuda T, Kuroda A, Sakamoto F, Naka T, Miyashita K, Sakamoto K, Matsuoka T, Shimomura I, Matsuhisa M. Improvement of psoriatic arthritis by pioglitazone treatment in a type 2 diabetic patient. Diabetes Res Clin Pract 2010; 90:e9-e10. [PMID: 20816261 DOI: 10.1016/j.diabres.2010.05.020] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2010] [Accepted: 05/20/2010] [Indexed: 11/29/2022]
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Koizumi W, Boku N, Yamaguchi K, Miyata Y, Sawaki A, Kato T, Toh Y, Hyodo I, Nishina T, Furuhata T, Miyashita K, Okada Y. Phase II study of S-1 plus leucovorin in patients with metastatic colorectal cancer. Ann Oncol 2010; 21:766-771. [PMID: 19828562 PMCID: PMC2844944 DOI: 10.1093/annonc/mdp371] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2009] [Revised: 06/22/2009] [Accepted: 06/23/2009] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND S-1, a novel oral fluoropyrimidine, is well tolerated in patients with metastatic colorectal cancer (mCRC). The response rate of S-1 for colorectal cancer is high, ranging from 35% to 40%. This study aimed to evaluate the safety and efficacy of S-1 combined with oral leucovorin (LV) to enhance antitumor activity in chemotherapy-naive patients with mCRC. PATIENTS AND METHODS S-1 was given orally twice daily for two consecutive weeks at a daily dose of 80-120 mg, followed by a 2-week rest period, within a 4-week cycle. LV was given orally twice a day at a daily dose of 50 mg, simultaneously with S-1. RESULTS Of the 56 patients with previously untreated mCRC, 32 (57%) had partial responses. The median follow-up period was 27.2 months. The median time to progression was 6.7 months (95% confidence interval 5.4-7.9). The median survival time was 24.3 months. There was no treatment-related death or grade 4 toxicity. The most common grade 3 toxic effects were diarrhea (32%), anorexia (21%), stomatitis (20%), and neutropenia (14%). CONCLUSION S-1 combined with LV therapy demonstrated promising efficacy and acceptable safety in chemotherapy-naive patients with mCRC without the concurrent use of irinotecan, oxaliplatin, or molecular-targeted drugs.
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Affiliation(s)
- W Koizumi
- Department of Internal Medicine, Kitasato University School of Medicine, Kanagawa.
| | - N Boku
- Division of Gastrointestinal Oncology, Shizuoka Cancer Centre, Shizuoka
| | - K Yamaguchi
- Department of Gastroenterology, Saitama Cancer Centre, Saitama
| | - Y Miyata
- Department of Gastroenterology, Saku Central Hospital, Nagano
| | - A Sawaki
- Department of Gastroenterology, Aichi Cancer Centre Hospital, Aichi
| | - T Kato
- Department of Surgery, Minoh City Hospital, Osaka
| | - Y Toh
- Department of Gastroenterological Surgery, National Kyushu Cancer Centre, Fukuoka
| | - I Hyodo
- Department of Gastroenterology, University of Tsukuba, Ibaraki
| | - T Nishina
- Department of Internal Medicine, National Hospital Organization Shikoku Cancer Centre, Ehime
| | - T Furuhata
- First Department of Surgery, Sapporo Medical University School of Medicine, Hokkaido
| | - K Miyashita
- Department of Surgery, National Hospital Organization Nagasaki Medical Centre, Nagasaki
| | - Y Okada
- Department of Internal Medicine, Nakabaru Hospital, Fukuoka, Japan
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Wanaka K, Matsuo T, Matsuo M, Kaneko C, Miyashita K, Asada R, Matsushima H, Nakajima Y. Re-exposure to heparin in uremic patients requiring hemodialysis with heparin-induced thrombocytopenia. J Thromb Haemost 2010; 8:616-8. [PMID: 20050999 DOI: 10.1111/j.1538-7836.2009.03734.x] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Sachindra NM, Airanthi MKWA, Hosokawa M, Miyashita K. Radical scavenging and singlet oxygen quenching activity of extracts from Indian seaweeds. J Food Sci Technol 2010; 47:94-9. [PMID: 23572608 DOI: 10.1007/s13197-010-0022-4] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/19/2008] [Accepted: 06/26/2009] [Indexed: 10/19/2022]
Abstract
Free radicals and singlet oxygen are responsible for oxidative stress related diseases and many natural compounds are known to have antioxidant properties. In this study, extracts from brown and red seaweeds of Indian origin were evaluated for their ability to scavenge different radicals and quench singlet oxygen. The crude extract in methanol and its fractions in different solvents were evaluated for their activity. The methanol extract and its fractions from brown seaweed exhibited higher 2,2'-azinobis(3-ethylbenzothizoline-6-sulfonic acid) radical scavenging activity with more than 90% scavenging in butanol and ethyl acetate fractions and correlated with polyphenol content. There was a significant difference (p≤0.001) in hydroxyl radical scavenging activity between different fractions of the same seaweed. Among the crude extracts, extract from Gracilaria corticata showed the highest (14.0%) activity. Crude extract from brown seaweeds showed higher peroxyl radical scavenging activity compared to red seaweeds. In fractions from brown seaweed extracts, highest activity was observed in ethyl acetate fraction (>88%) followed by hexane fraction (>40 %). Ethyl acetate fraction from crude extract showed higher inhibitory activity against hemoglobin induced linoleic acid oxidation. Singlet oxygen quenching activity of the crude extract from brown seaweed was lower (<13%) compared to red seaweeds (16.4-20.5%).
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Affiliation(s)
- N M Sachindra
- Faculty of Fisheries, Hokkaido University, 3-1-1 Minato, Hakodate, 041-8611 Japan ; Central Food Technological Research Institute (Council of Scientific and Industrial Research), Mysore, 570 020 India
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Miyashita K, Maeda H, Tsukui T, Okada T, Hosokawa M. ANTI-OBESITY EFFECT OF ALLENE CAROTENOIDS, FUCOXANTHIN AND NEOXANTHIN FROM SEAWEEDS AND VEGETABLES. ACTA ACUST UNITED AC 2009. [DOI: 10.17660/actahortic.2009.841.18] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Nakazawa Y, Sashima T, Hosokawa M, Miyashita K. Comparative evaluation of growth inhibitory effect of stereoisomers of fucoxanthin in human cancer cell lines. J Funct Foods 2009. [DOI: 10.1016/j.jff.2008.09.015] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
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Miyai N, Arita M, Miyashita K, Morioka I, Takeda S. The influence of obesity and metabolic risk variables on brachial-ankle pulse wave velocity in healthy adolescents. J Hum Hypertens 2008; 23:444-50. [PMID: 19078989 DOI: 10.1038/jhh.2008.143] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Measurement of brachial-ankle pulse wave velocity (baPWV) is recognized as a simple and practical method for assessing arterial stiffness. We determined whether the baPWV of adolescents is affected by obesity and its associated metabolic risk variables. A cross-sectional sample of 754 apparently healthy adolescents (383 men and 371 women), aged 15-17 years, was recruited for this study. baPWV was measured by a simple automatic oscillometric technique. Adiposity measures, blood pressure, serum lipoproteins, fasting glucose and insulin were evaluated. The baPWV of the adolescents was significantly higher in men than in women and increased with age in both genders. After being statistically adjusted for age and gender, baPWV was significantly correlated with body mass index, percent body fat, waist-to-height ratio, systolic and diastolic blood pressures, mean arterial pressure, triglycerides, high-density lipoprotein cholesterol (HDL-C), atherogenic index, glucose, insulin, and homoeostasis model assessment of insulin resistance (HOMA-IR). In the multivariate regression analysis, mean arterial pressure, atherogenic index, HOMA-IR, systolic blood pressure and age were found to be significant determinants of baPWV (P<0.001). An increasing number of clustered risk variables, including high values (>gender-specific top quartiles) of waist-to-height ratio, mean arterial pressure, atherogenic index and HOMA-IR showed a graded association with baPWV (P<0.001 for trend). These results suggest that obesity and its associated metabolic abnormalities are important factors in the increased baPWV of adolescents and that baPWV may be useful in investigating early arterial wall changes in this population.
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Affiliation(s)
- N Miyai
- Department of Health and Physical Education, Osaka Kyoiku University, Kashiwara, Osaka, Japan.
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Koshida S, Deguchi T, Miyashita K, Iwai K, Urabe Y. The common mechanisms of anterior cruciate ligament injuries in judo: a retrospective analysis. Br J Sports Med 2008; 44:856-61. [PMID: 19042919 DOI: 10.1136/bjsm.2008.051425] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND Although high prevalence of anterior cruciate ligament injuries (ACL) in judokas has been reported, there has been very little research concerning events preceding the injury. OBJECTIVE To determine the common situations and mechanisms of ACL injury in judo. METHODS A total of 43 cases of ACL injuries that had occurred during judo competition or practice were investigated, using questionnaires with interviews conducted by a single certified athletic trainer who has 20 years of judo experience to obtain information regarding the situation and mechanism in which the ACL injury occurred. RESULTS The number of ACL injuries when the participant's grip style was different from the style of the opponent (ie, kenka-yotsu style) (28 cases) was significantly greater than when the participant's grip style was the same as that of the opponent (ie, ai-yotsu style) (15 cases; p<0.001). The number of ACL injuries was significantly higher when the participant was attacked by the opponent than when counterattacked or when attempting the attack (p<0.001). In addition, being attacked with osoto-gari was revealed as the leading cause of ACL injury incidence among the participants (16.8%). CONCLUSIONS Grip style may be associated with ACL injury occurrence in judo. In addition, direct contact due to the opponent's attack may be a common mechanism for ACL injuries in judo.
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Affiliation(s)
- S Koshida
- Faculty of Health Sciences, Ryotokuji University, Chiba, Japan
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Okada T, Noguchi R, Hosokawa M, Fukunaga K, Nishiyama T, Zaima N, Hirata T, Miyashita K. Effects ofTransand Conjugated LC N-3 Polyunsaturated Fatty Acids on Lipid Composition and Abdominal Fat Weight in Rats. J Food Sci 2008; 73:H201-6. [DOI: 10.1111/j.1750-3841.2008.00916.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Yamamoto Y, Kobayashi J, Miyashita K, Furutera R, Nishiyama K, Goto A, Kaneko Y. [Indication and timing of surgical intervention for cardiovascular disease in hemodialysis dependent patients]. Kyobu Geka 2008; 61:525-529. [PMID: 18616093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Surgical intervention on cardiovascular disorders in patients with hemodialysis dependent renal failure improves their life expectancy, but carries high surgical mortality. Decision on the indication of surgery as well as on its timing has crucial impact on surgical outcome. We retrospectively analyzed the data of 21 hemodialysis dependent patients who had undergone cardiovascular surgery in our institution from May 2001 to May 2005 to elucidate the appropriate indication and timing of surgical intervention. The study revealed early mortality (< 30 days) of 4.8% and 5 year survival rate of 83.5%. Risk factors for poor prognosis were older age, and longer hemodialysis history. Despite the opinions advocating early surgery in these patients, we adopted a surgical strategy to wait until patients' condition is optimized. Low surgical mortality and high long-term survival of our surgical series indicated appropriateness of our strategy on the timing of surgery. However, extremely low long-term mortality rate raised the concern that our surgical indication might have been too conservative.
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Affiliation(s)
- Y Yamamoto
- Department of Cardiovascular Surgery, Japanese Red Cross Medical Center, Tokyo, Japan
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Abstract
Scallop (Patinopecten yessoensis) adductor muscles were heated using superheated steam (150 and 200 degrees C), boiling (98 degrees C), and normal steaming (95 degrees C). The amounts of amino acids, water-soluble peptides, and nucleotides, expressed as extractive nitrogen in scallop products, are very important elements of quality and taste. After 15-min heating of scallop muscles with normal steaming and boiling, respective losses of 50% and 64% of the extractive nitrogen were observed. However, most extractive nitrogen (> 86%) remained in the scallop muscles treated with superheated steam at 150 and 200 degrees C. Protective effects of superheated steam against elution loss of nitrogen compounds were also observed in amino acid analyses of the heated products. The scallop-muscle surface temperature during treatment with superheated steam increased more quickly than that with normal steaming and boiling. The rapid water loss and the surface protein denaturation engendered formation of a 30-mum-thick film covering the surface, which prevented extractive nitrogen loss from internal tissues. Superheated steam treatment at 200 degrees C caused browning, surface shrinkage, and 47% weight loss. In marked contrast, the appearance and the weight loss of sample treated at 150 degrees C were almost the same as those of normal steaming and boiling-treated samples. These results suggested that superheated steaming at 150 degrees C is an optimal heat treatment of scallop adductor muscles.
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Affiliation(s)
- T Abe
- Hokkaido Food Processing Research Center, 589-4, Bunkyodai-Midorimachi, Ebetsu, Hokkaido 069-0836, Japan.
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Abstract
Dietary effects of herring roe lipids (HR-L) and proteins (HR-P) on plasma lipids and abdominal fat pad weight were determined. The main lipid class of HR-L was phospholipids (74%) and the main fatty acids were palmitic acid (16:0, 25.8%), DHA (22:6n-3, 21.6%), EPA (20:5n-3, 14.4%), and oleic acid (18:1n-9, 13.2%). A little increase in total cholesterol level was observed in plasma lipids of mouse fed with HR-L, although HR-L contained 9% cholesterol. This would be due to the lowering effect of EPA and DHA contained in HR-L on plasma cholesterol. Replacement of a part of dietary protein (5%) to HR-P reduced abdominal fat pad weight, but not significantly. On the other hand, combination of HR-P and HR-L significantly reduced the fat pad weight of the mouse as compared with the control. A significant effect of HR-P + HR-L was also observed in the reducing plasma lipid levels.
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Affiliation(s)
- H Moriya
- Faculty of Fisheries Sciences, Hokkaido Univ., Hakodate 041-8611, Japan
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Narahara H, Koizumi W, Hara T, Takagane A, Akiya T, Takagi M, Miyashita K, Nishizaki T, Kobayashi O. Randomized phase III study of S-1 alone versus S-1 + cisplatin in the treatment for advanced gastric cancer (The SPIRITS trial) SPIRITS: S-1 plus cisplatin vs S-1 in RCT in the treatment for stomach cancer. J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.4514] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4514 Background: S-1 has been widely used against advanced gastric cancer (AGC) not only as monotherapy but also in combination with other cytotoxic compounds. Results of a phase I/II study combining S-1 + cisplatin (CDDP) were very encouraging with a high response rate (RR) of 76%, and the MST (Median Survival Time) of 383 days (Koizumi W et al, Br J Cancer, 2003). Based on these results, a phase III study comparing S-1 alone with S-1 + CDDP has been conducted to further evaluate the efficacy and safety for S-1 + CDDP as a standard treatment for AGC. Methods: This is a randomized, controlled, open-label, parallel, multicenter study. Patients (pts) are randomized to one of two treatment arms. Arm A: Pts receive oral S-1 (40 mg/m2) twice daily 28 days followed by 14 days rest. Arm B: Pts receive oral S-1 (40 mg/m2) twice daily 21 days followed by 14 days rest plus CDDP (60 mg/m2) iv on day 8. Eligibility criteria included unresectable/recurrent AGC, age 20–74, no prior chemotherapy for AGC. Primary endpoint was overall survival (OS). Main secondary endpoints included RR, time to treatment failure (TTF) and toxicity. Based on planned sample size of 284 pts, the trial was designed to have 90% power to detect an improvement in median OS from 8 to 12 months (2-sided log-rank test; significance level 0.05). Results: 305 pts (Arm A/B, 152/153) were randomized between Mar 2002 and Nov 2004. The eligible pts were 299 (Arm A/B, 150/149). Median age was 62.0/61.5 yrs. At a 2 yrs follow-up since last patient in, the MST for Arm A was 335.5 days (95%CI: 292.0 - 402.0) and for Arm B was 396.0 days (95%CI: 342.0 - 471.0). The OS for Arm B was superior to Arm A (log-rank p=0.0366, hazard ratio: 0.774, 95% CI: 0.608 - 0.985). RR was 31.1% for Arm A and 54.0% for Arm B. In Arm A vs Arm B, the most common grade 3/4 toxicities were: leucopenia, 2.0% vs 11.5%; neutropenia, 10.7% vs 39.9%; anemia (decreased Hb), 4.0% vs 25.7%; nausea, 1.3% vs 11.5%; anorexia, 6.0% vs 30.4%. No treatment related death was observed. Conclusions: The combination treatment of S-1 and CDDP met primary endpoint of OS, and was found to be effective and well tolerated in pts with AGC. Accordingly, this regimen can be regarded as one of first-line standard treatment for AGC. No significant financial relationships to disclose.
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Affiliation(s)
- H. Narahara
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - W. Koizumi
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - T. Hara
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - A. Takagane
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - T. Akiya
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - M. Takagi
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - K. Miyashita
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - T. Nishizaki
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
| | - O. Kobayashi
- Osaka Medical Center for Cancer and CV Diseases, Osaka, Japan; Kitasato University East Hospital, Kanagawa, Japan; Kouseiren Takaoka Hospital, Toyama, Japan; Iwate Medical University, Iwate, Japan; Gunma Prefectual Cancer Center, Gunma, Japan; Shizuoka General Hospital, Shizuoka, Japan; National Hospital Org Nagasaki Medical Center, Nagasaki, Japan; Matsuyama Red Cross Hospital, Ehime, Japan; Kanagawa Cancer Center, Kanagawa, Japan
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Tanaka K, Miyashita K, Urabe Y, Koshida S, Takemoto Y, Ijiri T. RELATIONSHIP BETWEEN PELVIC ROTATION AND TRUNK LEAN MOTION DURING WALKING IN PATIENTS WITH SYMPTOMATIC KNEE OSTEOARTHRITIS. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70498-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Koshida S, Urabe Y, Miyashita K, Iwai K, Tanaka K, Kagimori A. MUSCULAR OUTPUTS DURING DYNAMIC BENCH PRESS UNDER STABLE VERSUS UNSTABLE CONDITIONS. J Biomech 2007. [DOI: 10.1016/s0021-9290(07)70621-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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Inoue T, Shiraki K, Fuke H, Yamanaka Y, Miyashita K, Yamaguchi Y, Yamamoto N, Ito K, Sugimoto K, Nakano T. Proteasome inhibition sensitizes hepatocellular carcinoma cells to TRAIL by suppressing caspase inhibitors and AKT pathway. Anticancer Drugs 2006; 17:261-8. [PMID: 16520654 DOI: 10.1097/00001813-200603000-00004] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The ubiquitin-proteasome pathway is responsible for regulating cell cycle proteins, tumor-suppressor molecules, oncogenes, transcription factors, and pro- and anti-apoptotic proteins. The aim of this study is to evaluate the effects of proteasome inhibitors on human hepatocellular carcinoma (HCC) cells. HCC cells SK-Hep1, HLE and HepG2 were treated with the proteasome inhibitors MG132 and MG115. Our data showed that both inhibitors induce apoptosis in the three cell types tested in a dose-dependent manner. Moreover, subtoxic levels of MG132 and MG115 sensitized HCC cells to TRAIL-induced apoptosis. To investigate the mechanism of increased TRAIL sensitivity in HCC cells, we first examined surface expression of TRAIL and its receptors. MG132 upregulated TRAIL and its receptors (TRAIL-R1 and -R2) in SK-Hep1 and HLE, whereas MG115 upregulated them in SK-Hep1. MG132 downregulated expression of X-linked inhibitor of apoptosis protein (XIAP) in SK-Hep1 and HLE, and of survivin in all three cell-types. MG115 downregulated expression of XIAP in SK-Hep1, and survivin in SK-Hep1 and HepG2. Furthermore, MG132 downregulated phospho-AKT and its downstream target phospho-BAD, indicating that MG132 activated the mitochondrial apoptosis pathway by inhibiting phosphorylation of AKT and BAD. In conclusion, proteasome inhibitors induced apoptosis and augmented TRAIL sensitivity via both the IAP family and AKT pathways. Thus, combining proteasome inhibitors with a TRAIL agonist may provide a new therapeutic strategy for HCC.
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Affiliation(s)
- Tomoko Inoue
- First Department of Internal Medicine, Mie University School of Medicine, Mie, Japan
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46
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Yamanaka Y, Shiraki K, Inoue T, Miyashita K, Fuke H, Yamaguchi Y, Yamamoto N, Ito K, Sugimoto K, Nakano T. COX-2 inhibitors sensitize human hepatocellular carcinoma cells to TRAIL-induced apoptosis. Int J Mol Med 2006. [PMID: 16786154 DOI: 10.3892/ijmm.18.1.41] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
Abstract
Cyclooxygenase (COX)-2 is upregulated in a variety of human cancers, including in hepatocellular carcinoma (HCC), whereas it is undetectable in most normal tissue. Evidence suggests that COX-2 is likely to be involved in hepatocarcinogenesis and, thus, COX-2 may be involved in an early process in carcinogenesis, dedifferentiation. To address this possibility, we investigated the effect of COX-2 inhibitors on TNF-related apoptosis, inducing ligand (TRAIL) sensitivity and its molecular mechanisms, with special attention to anti-apoptotic proteins. We used the highly selective COX-2 inhibitors, NS398 and CAY10404. We also used the MTT assay and cytological analysis of DAPI-stained DNA to assess viability and apoptosis in two HCC cells (SK-Hep1 and HLE). In order to ask what led to increased sensitivity to TRAIL in HCC cells, cell surface expression of TRAIL and TRAIL-receptors was investigated using flow cytometry analysis. Expression of survivin, X-chromosome-linked IAP (XIAP), Bcl-xL, AKT and phospho-AKT was also investigated using immunoblotting. COX-2 inhibitors resulted in a concentration-dependent decrease in cell viability in the two HCC cell lines tested. Subtoxic levels of COX-2 inhibitors did not significantly augment TNFalpha-induced apoptosis but did dramatically enhance TRAIL-induced apoptosis in both cell lines. TRAIL receptor 2/death receptor 5 (TRAIL-R2/DR5) expression was significantly up-regulated in SH-Hep1 and HLE cells. TRAIL receptor 1/death receptor 4 (TRAIL-R1/DR4) expression was up-regulated only in SK-Hep1. Expression of survivin and Bcl-xL was down-regulated in SK-Hep1 and HLE cells in the presence of CAY10404 but XIAP was not affected. Expression of survivin, Bcl-xL and XIAP was down-regulated in SK-Hep1 cells in the presence of NS398. Survivin expression was also down-regulated in the presence of NS398 in HLE cells. Finally, NS398 also decreased phospho-AKT in SK-Hep1 cells. These results demonstrate that COX-2 inhibitors can induce apoptosis and augment TRAIL sensitivity by up-regulation of TRAIL receptors and down-regulation of both survivin and AKT signaling.
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Affiliation(s)
- Yutaka Yamanaka
- First Department of Internal Medicine, Mie University School of Medicine, Tsu, Mie 514-8507, Japan
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Yasui Y, Hosokawa M, Kohno H, Tanaka T, Miyashita K. Troglitazone and 9cis,11trans,13trans-conjugated linolenic acid: comparison of their antiproliferative and apoptosis-inducing effects on different colon cancer cell lines. Chemotherapy 2006; 52:220-5. [PMID: 16899971 DOI: 10.1159/000094865] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2005] [Accepted: 09/06/2005] [Indexed: 01/25/2023]
Abstract
BACKGROUND We have previously reported that troglitazone, a synthetic ligand for peroxisome proliferator-activated receptor gamma (PPARgamma), and bitter gourd seed oil rich in 9cis,11trans,13trans-conjugated linolenic acid (9c,11t,13t-CLN) prevent colon carcinogenesis. To evaluate the chemotherapeutic effect and potency of these compounds on colon cancer cells, we investigated their antiproliferative and apoptosis-inducing effects using different human colon cancer cell lines. METHODS The antiproliferative and apoptosis-inducing effects of troglitazone and 9c,11t,13t-CLN were evaluated and compared using HT-29, DLD-1 and Caco-2 cells at different stages of enterocytic differentiation. RESULTS Troglitazone and 9c,11t,13t-CLN decreased cell viability and induced apoptosis in three colon cancer cell lines. The susceptibility of HT-29, which expresses PPARgamma at high levels, to troglitazone and 9c,11t,13t-CLN was higher than that of Caco-2 cells with low levels of PPARgamma. CONCLUSION Troglitazone and 9c,11t,13t-CLN exhibited more effective chemotherapeutic effects on HT-29 cells than on Caco-2 cells.
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Affiliation(s)
- Y Yasui
- Graduate School of Fisheries Sciences, Hokkaido University, Hakodate, Hokkaido, Japan
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Miyashita K, Shiraki K, Fuke H, Inoue T, Yamanaka Y, Yamaguchi Y, Yamamoto N, Ito K, Sugimoto K, Nakano T. The cyclin-dependent kinase inhibitor flavopiridol sensitizes human hepatocellular carcinoma cells to TRAIL-induced apoptosis. Int J Mol Med 2006. [DOI: 10.3892/ijmm.18.2.249] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
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49
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Miyashita K, Shiraki K, Fuke H, Inoue T, Yamanaka Y, Yamaguchi Y, Yamamoto N, Ito K, Sugimoto K, Nakano T. The cyclin-dependent kinase inhibitor flavopiridol sensitizes human hepatocellular carcinoma cells to TRAIL-induced apoptosis. Int J Mol Med 2006; 18:249-56. [PMID: 16820931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Flavopiridol was one of the first cyclin-dependent kinase inhibitors demonstrated to have an antitumor effect in several cancer types. Here, we investigated the effects of flavopiridol on TNF-related apoptosis-inducing ligand (TRAIL) in the human hepatocellular carcinoma (HCC) cell lines HLE and HepG2, and evaluated the role of flavopiridol in apoptosis. To better understand the mechanism of increased TRAIL sensitivity in HCC cells, we determined the effect of flavopiridol on cell surface expression of TRAIL and TRAIL receptors using flow cytometry analysis. The levels of survivin, FLIP, Bcl-xL and X-chromosome-linked IAP (XIAP) in treated and untreated cells was also determined. Flavopiridol decreased cell viability in a dose-dependent manner in the two HCC cell lines tested. The pan-caspase inhibitor z-VAD-FMK did not inhibit the effect. However, subtoxic levels of flavopiridol dramatically enhanced TRAIL-induced apoptosis in both cells. Flavopiridol up-regulated TRAIL, TRAIL-R1 and TRAIL-R2 in both cell lines. In addition, flavopiridol down-regulated expression of survivin in both cell lines, and expression of FLIP and Bcl-xL were down-regulated in HLE cells. In summary, flavopiridol augmented TRAIL sensitivity by up-regulation of TRAIL receptors and down-regulation of survivin, FLIP and Bcl-xL. Thus, combining flavopiridol with a TRAIL agonist may prove to be an effective new strategy for treatment of HCC.
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Affiliation(s)
- Kazumi Miyashita
- First Department of Internal Medicine, Mie University School of Medicine, Tsu, Mie 514-8507, Japan
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50
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Yamanaka Y, Shiraki K, Inoue T, Miyashita K, Fuke H, Yamaguchi Y, Yamamoto N, Ito K, Sugimoto K, Nakano T. COX-2 inhibitors sensitize human hepatocellular carcinoma cells to TRAIL-induced apoptosis. Int J Mol Med 2006; 18:41-7. [PMID: 16786154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/10/2023] Open
Abstract
Cyclooxygenase (COX)-2 is upregulated in a variety of human cancers, including in hepatocellular carcinoma (HCC), whereas it is undetectable in most normal tissue. Evidence suggests that COX-2 is likely to be involved in hepatocarcinogenesis and, thus, COX-2 may be involved in an early process in carcinogenesis, dedifferentiation. To address this possibility, we investigated the effect of COX-2 inhibitors on TNF-related apoptosis, inducing ligand (TRAIL) sensitivity and its molecular mechanisms, with special attention to anti-apoptotic proteins. We used the highly selective COX-2 inhibitors, NS398 and CAY10404. We also used the MTT assay and cytological analysis of DAPI-stained DNA to assess viability and apoptosis in two HCC cells (SK-Hep1 and HLE). In order to ask what led to increased sensitivity to TRAIL in HCC cells, cell surface expression of TRAIL and TRAIL-receptors was investigated using flow cytometry analysis. Expression of survivin, X-chromosome-linked IAP (XIAP), Bcl-xL, AKT and phospho-AKT was also investigated using immunoblotting. COX-2 inhibitors resulted in a concentration-dependent decrease in cell viability in the two HCC cell lines tested. Subtoxic levels of COX-2 inhibitors did not significantly augment TNFalpha-induced apoptosis but did dramatically enhance TRAIL-induced apoptosis in both cell lines. TRAIL receptor 2/death receptor 5 (TRAIL-R2/DR5) expression was significantly up-regulated in SH-Hep1 and HLE cells. TRAIL receptor 1/death receptor 4 (TRAIL-R1/DR4) expression was up-regulated only in SK-Hep1. Expression of survivin and Bcl-xL was down-regulated in SK-Hep1 and HLE cells in the presence of CAY10404 but XIAP was not affected. Expression of survivin, Bcl-xL and XIAP was down-regulated in SK-Hep1 cells in the presence of NS398. Survivin expression was also down-regulated in the presence of NS398 in HLE cells. Finally, NS398 also decreased phospho-AKT in SK-Hep1 cells. These results demonstrate that COX-2 inhibitors can induce apoptosis and augment TRAIL sensitivity by up-regulation of TRAIL receptors and down-regulation of both survivin and AKT signaling.
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Affiliation(s)
- Yutaka Yamanaka
- First Department of Internal Medicine, Mie University School of Medicine, Tsu, Mie 514-8507, Japan
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