1
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Konishi K, Kamiya M, Ishiba R, Komatsu T, Asao T, Ikenohira T, Kosugi T, Ushio T, Yamashita S, Goshima S, Nakamura K. Impact of Total Radiation Dose on the Treatment Outcomes in Radiotherapy and Concomitant Superselective Intra-arterial High Dose Cisplatin for Locally Advanced Maxillary Sinus Cancer. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.357] [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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2
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Umehara T, Oka H, Shiraishi T, Sato T, Nakahara A, Matsuno H, Komatsu T, Omoto S, Murakami H, Iguchi Y. Cardiac sympathetic dysfunction associated with dopaminergic depletion in striatal subregions in de novo Parkinson's disease. Parkinsonism Relat Disord 2020. [DOI: 10.1016/j.parkreldis.2020.06.158] [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: 11/28/2022]
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3
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Okahisa T, Sogabe M, Nakagawa T, Tanaka K, Tomonari T, Taniguchi T, Takahashi A, Kinouchi Y, Nishioka J, Igata N, Yanagawa H, Komatsu T, Ohnishi Y, Fukuhara M, Ishikawa M, Shibata H, Shinomiya H, Nakasono M, Kishi F, Komai K, Tatsuki Y, Murashima T, Deguchi Y, Aramaki H, Fukumitsu H, Takayama T. Development of a novel automatic ascites filtration and concentration equipment with multi-ring-type roller pump units for cell-free and concentrated ascites reinfusion therapy. Artif Organs 2020; 44:856-872. [PMID: 32187379 PMCID: PMC7496092 DOI: 10.1111/aor.13681] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 03/03/2020] [Accepted: 03/10/2020] [Indexed: 12/13/2022]
Abstract
Cell‐free and concentrated ascites reinfusion therapy (CART) is an effective therapy for refractory ascites. However, CART is difficult to perform as ascites filtration and concentration is a complicated procedure. Moreover, the procedure requires the constant assistance of a clinical engineer or/and the use of an expensive equipment for the multi‐purpose blood processing. Therefore, we developed a CART specialized equipment (mobility CART [M‐CART]) that could be used safely with various safety measures and automatic functions such as automatic washing of clogged filtration filter and self‐regulation of the concentration ratio. Downsizing, lightning of the weight, and automatic processing in M‐CART required the use of newly developed multi‐ring‐type roller pump units. This equipment was approved under Japanese regulations in 2018. In performing 41 sessions of CART (for malignant ascites, 22 sessions; and hepatic ascites, 19 sessions) using this equipment in 17 patients, no serious adverse event occurred. An average of 4494 g of ascites was collected and the total amount of ascites was processed in all the sessions without any trouble. The mean weight of the processed ascites was 560 g and the mean concentration ratio was 8.0. The ascites were processed at a flow rate of 50 mL/min. The mean ascites processing time was 112.5 minutes and a 106.5‐minutes (95.2%) ascites processing was performed automatically. The operator responded to alarms or support information 3.2 times on average (3.1 minutes, 2.1% of ascites processing time). Human errors related to ascites processing were detected by M‐CART at 0.4 times per session on average and were appropriately addressed by the operator. The frequencies of automatic washing of clogged filtration filter and self‐regulation of the concentration ratio were 31.7% and 53.7%, respectively. The mean recovery rates (recovery dose) of protein, albumin, and immunoglobulin G were 72.9%, 72.9%, and 71.2% (65.9 g, 34.9 g, and 13.2 g), respectively. Steroids were administered in 92.7% of the sessions to prevent fever and the mean increase in body temperature was 0.53°C. M‐CART is a compact and lightweight automatic CART specialized equipment that can safely and easily process a large quantity of ascites without the constant assistance of an operator.
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Affiliation(s)
- Toshiya Okahisa
- Department of General Medicine and Community Health Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masahiro Sogabe
- Department of General Medicine and Community Health Science, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tadahiko Nakagawa
- Department of Health and Nutrition, Nursing Dietetics Department, The University of Shimane, Izumo, Japan
| | - Kumiko Tanaka
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tetsu Tomonari
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Tatsuya Taniguchi
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Akira Takahashi
- Department of Preventive Environment and Nutrition, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Yohsuke Kinouchi
- Department of Electrical and Electronic Engineering, Institute of Socio Techno Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Junji Nishioka
- Course of Medical Science, Graduate School of Medical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Naoki Igata
- Faculty of Medicine, Student Lab, Tokushima University, Tokushima, Japan
| | - Hiroaki Yanagawa
- Clinical Trial Center for Developmental Therapeutics, Tokushima University Hospital, Tokushima, Japan
| | - Takatoshi Komatsu
- Department of Clinical Engineering, Division of Clinical Technology, Tokushima University Hospital, Tokushima, Japan
| | - Yoshiaki Ohnishi
- Department of Clinical Engineering, Division of Clinical Technology, Tokushima University Hospital, Tokushima, Japan
| | - Masashi Fukuhara
- Dialysis Center, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Masashi Ishikawa
- Dialysis Center, Shikoku Central Hospital of the Mutual Aid Association of Public School Teachers, Shikokuchuo, Japan
| | - Hiroshi Shibata
- Department of Gastroenterology, Tokushima Prefectural Central Hospital, Tokushima, Japan
| | - Hirohiko Shinomiya
- Department of Gastroenterology, Yoshinogawa Medical Center, Yoshinogawa, Japan
| | - Masahiko Nakasono
- Department of Internal Medicine, Tsurugi Municipal Handa Hospital, Tsurugi, Japan
| | - Fumiko Kishi
- Department of Internal Medicine, Tokushima Municipal Hospital, Tokushima, Japan
| | - Keiko Komai
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Yayoi Tatsuki
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Toru Murashima
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Yoshihiro Deguchi
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Hiroshi Aramaki
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Hideyuki Fukumitsu
- Medical Device Business Division, Takatori Corporation, Kashihara, Japan
| | - Tetsuji Takayama
- Department of Gastroenterology and Oncology, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
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Konishi K, Kamiya M, Ishiba R, Komatsu T, Ikenohira T, Asao T, Ushio T, Yamashita S, Kosugi T, Okamura J, Hosokawa S, Mineta H, Goshima S, Nakamura K. PO-126: The treatment of IMRT vs 3DCRT for maxillary sinus cancer combination with intra-arterial cisplatin. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30468-0] [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: 10/23/2022]
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5
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Nomura T, Kabashima K, Komatsu T. 136 Non-invasive evaluation of pachydermia of pachydermoperiostosis by vital confocal microscopy. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.140] [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: 11/24/2022]
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6
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Sakata S, Saeki S, Sakata Y, Kawamura K, Ichikado K, Inaba M, Ushijima S, Imamura K, Iyonaga K, Kumabe T, Fujita R, Kashiwabara K, Fujii S, Komatsu T, Sakamoto O, Okabayashi H, Saruwatari K, Tomita Y, Sakagami T. The impact of continuing ALK inhibitors beyond initial disease progression on clinical outcome in patients with advanced ALK-positive non-small cell lung cancer: Results of a multicenter retrospective analysis. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy425.038] [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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7
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Takada Y, Takagi M, Someya M, Kobayashi T, Aizawa K, Ukon K, Fujita H, Kitsu Y, Komatsu T, Yaegashi Y, Sakata K, Ikeda H. Nutrition Education Reduce Daily Variation of Rectal Volume and Dose in Patients with Prostate Cancer Treated with Intensity-Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.278] [Citation(s) in RCA: 1] [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: 11/17/2022]
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8
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Amino M, Nakano M, Komatsu T, Yoshizawa R, Kunugita F, Shinozaki N, Ogasawara K, Morino Y, Yoshioka K, Ikari Y. P737Sympathetic-parasympathetic imbalance by Holter analysis following carotid endarterectomy may be associated with a potential cause of myocardial infarction. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy564.p737] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- M Amino
- Tokai University School of Medicine, Isehara, Japan
| | - M Nakano
- Tokai University School of Medicine, Isehara, Japan
| | - T Komatsu
- Iwate University Hospital, Division of Cardiology, Iwate, Japan
| | - R Yoshizawa
- Iwate University Hospital, Division of Cardiology, Iwate, Japan
| | - F Kunugita
- Iwate University Hospital, Division of Cardiology, Iwate, Japan
| | - N Shinozaki
- Tokai University School of Medicine, Isehara, Japan
| | - K Ogasawara
- Iwate University Hospital, Department of neurosurgery, Iwate, Japan
| | - Y Morino
- Iwate University Hospital, Division of Cardiology, Iwate, Japan
| | - K Yoshioka
- Tokai University School of Medicine, Isehara, Japan
| | - Y Ikari
- Tokai University School of Medicine, Isehara, Japan
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Liu L, Komatsu T, Zor F, Gorantla V, Janjic J. Sustained analgesic and anti-inflammatory efficacy of single dose COX-2 inhibiting nonomedicine in a murine inflammatory pain model. The Journal of Pain 2018. [DOI: 10.1016/j.jpain.2017.12.042] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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10
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Tokuda E, Komatsu T, Sasaki S, Tsuboi K, Nakamura M, Iida M, Niwa T, Saito M, Hayashi SI. Abstract P4-03-12: Effects of PI3K inhibitors on endocrine-resistant cell lines and differences in the characteristics of ER positive breast cancer cells after acquired resistance to the inhibitors. Cancer Res 2018. [DOI: 10.1158/1538-7445.sabcs17-p4-03-12] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Background
Mutations in phosphatidylinositol 3-kinase (PI3K), which encodes the catalytic subunit of PI3Kα, is one of the most frequent genomic alterations and is found in about 40% of estrogen receptor (ER)-positive, HER2 negative breast cancers. PIK3CA mutations promote the growth and proliferation of cancers via activation of the PI3K/mammalian target of rapamycin pathway and can mediate resistance to endocrine therapies in breast cancer. Although several clinical trials for PI3K inhibitors (PI3Kis) in ER-positive metastatic breast cancers are ongoing, the effects of PI3Kis on endocrine-resistant breast cancers with various characteristics and definitive biomarkers of PI3Kis are unclear. Using endocrine-resistant cells established in our laboratory, we evaluated the efficacy of PI3Ki in these cell lines and identified the characteristics associated with acquired resistance to PI3Kis in endocrine-resistant cells.
Results
Long-term estrogen deprivation-resistant (EDR) cell lines and fulvestrant-resistant cell lines (MFR and TFR) were established from MCF-7 and T-47D cells in our previous studies. These cell lines showed different ER expression levels, including high expression (EDR-1), low expression (EDR-2, -3), or no expression (MFR, TFR); all of these cell lines had the same PIK3CA mutations as the parental cell lines. The pan-class1 PI3Ki buparlisib (BKM120) and α-specific PI3K inhibitor alpelisib (BYL719) inhibited the proliferation of endocrine-resistant cell lines when compared with their parental cells. Among endocrine-resistant cells, MFR cells were dramatically inhibited by PI3Kis. Colony formation assays indicated that MFR cells were more sensitive to PI3Kis than other cells lines. Next, we established PI3Ki- and everolimus-resistant cell lines from EDR-1, EDR-2, and MFR cells using BKM120, BYL719, and everolimus. Analysis of the time required to generate resistant cells showed that MFR cells required twice as long to acquire resistance compared with EDR cells. Furthermore, the time required to acquire resistance to BYL719 was shorter than that for BKM120. BYL719-resistant (BYL-R) cells were effectively inhibited by BKM120 to a degree similar to that of parental cells; however, BYL-R cells lost sensitivity to BYL719 and everolimus. Evelolimus-resistant (EVE-R) cells were also the same. In contrast, BKM120-resistant (BKM-R) cells showed less sensitivity to BKM120, BYL719, and everolimus. In other words, the pan-PI3Ki BKM120 was able to inhibit the growth of BYL-R and EVE-R cells, whereas BYL719 and everolimus were not able to inhibit BKM-R cells sufficiently. In addition, there were no changes in ER expression in EDR-1, EDR-2, and MFR cells exposed to PI3Kis for 1 h. Interestingly, ER expression on EDR-2 cells with acquired resistance to PI3Kis was increased compared with that in parental cells.
Conclusion
Our findings showed that PI3Kis exhibited remarkable efficacy in all types of EDR cells, particularly in fulvestrant-resistant cell lines. In PI3Ki- and everolimus-resistant cell lines, BKM120 and BYL719 showed different effects, and BYL719 and everolimus may exhibit cross-resistance. Furthermore, PI3Kis were likely to change the expression of ER.
Citation Format: Tokuda E, Komatsu T, Sasaki S, Tsuboi K, Nakamura M, Iida M, Niwa T, Saito M, Hayashi S-I. Effects of PI3K inhibitors on endocrine-resistant cell lines and differences in the characteristics of ER positive breast cancer cells after acquired resistance to the inhibitors [abstract]. In: Proceedings of the 2017 San Antonio Breast Cancer Symposium; 2017 Dec 5-9; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2018;78(4 Suppl):Abstract nr P4-03-12.
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Affiliation(s)
- E Tokuda
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - T Komatsu
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - S Sasaki
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - K Tsuboi
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - M Nakamura
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - M Iida
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - T Niwa
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - M Saito
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
| | - S-I Hayashi
- Tohoku University Graduate School of Medicine, Sendai, Japan; Juntendo University Hospital, Tokyo, Japan
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11
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Konishi K, Kamiya M, Komatsu T, Yamashita S, Itou Y, Kosugi T, Suzuki K, Sakahara H, Nakamura K. Treatment Outcomes of Radiation Therapy Combined with Superselective Intra-arterial Infusion Therapy for Maxillary Sinus Cancer. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.1435] [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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12
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Sakuta K, Sato T, Tanabe M, Higa H, Ikeda M, Matsuno H, Komatsu T, Sakai K, Terasawa Y, Omoto S, Mitsumura H, Toyoda C, Iguchi Y. The NAG scale: A noble predictive scale for hematoma expansion in non-severe intracerebral hemorrhage patients. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2788] [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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13
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Terasawa Y, Komatsu T, Sakuta K, Sakai K, Oomoto S, Mitsumura H, Toyoda C, Iguchi Y. The prevalence of cerebral microbleeds increase in the patients with cerebrovascular disease. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2692] [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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14
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Mitsumura H, Komatsu T, Sakuta K, Sakai K, Terasawa Y, Omoto S, Iguchi Y. One third of acute ischemic stroke received reperfusion therapy after estimating tokyo stroke transportation system. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.1753] [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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15
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Komatsu T, Sakuta K, Sakai K, Terasawa Y, Omoto S, Mitsumura H, Toyoda C, Iguchi Y. Nonstenotic carotid plaque is the cause of ipsilateral embolic stroke of undetermined source. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.2457] [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: 11/17/2022]
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16
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Jimbo T, Taira T, Komatsu T, Kumazawa K, Maeda N, Haginoya N, Suzuki T, Ota M, Totoki Y, Wada C, Inaki K, Isoyama T, Uno M. DS-1205b, a novel, selective, small-molecule inhibitor of AXL, delays the onset of resistance and overcomes acquired resistance to EGFR-TKIs in a human EGFR-mutant NSCLC (T790M-negative) xenograft model. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx367.029] [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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17
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Shimokawa I, Komatsu T. ROLES FOR FOXO1 AND FOXO3 IN REGULATION OF CANCER AND LIFESPAN IN DIETARY-RESTRICTED MICE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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18
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Park S, Komatsu T, Kim S, Hayashi H, Mori R, Shimokawa I. REGULATION OF LIPOLYTIC CONTROL BY NEUROPEPTIDE Y PROMOTES SURVIVAL IN CALORIE-RESTRICTED MICE. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.1543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- S. Park
- Nagasaki University, Nagasaki, Japan
| | | | - S. Kim
- Nagasaki University, Nagasaki, Japan
| | | | - R. Mori
- Nagasaki University, Nagasaki, Japan
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Shiotani K, Yakushiji E, Ayaori M, Nishida T, Takiguchi S, Uto-Kondo H, Sasaki M, Yogo M, Komatsu T, Lu R, Yokoyama S, Ikewaki K. Probucol oxidized products, spiroquinone and diphenoquinone, promote reverse cholesterol transport in mice. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.588] [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: 10/21/2022]
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20
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Yutaka Y, Sato T, Matsushita K, Muranishi Y, Sakaguchi Y, Komatsu T, Hamaji M, Kojima F, Hijiya K, Motoyama H, Zhang J, Menju T, Aoyama A, Chen-Yoshikawa T, Sonobe M, Nakamura T, Date H. F-156LOCALIZATION OF SMALL LUNG LESIONS USING A RADIOFREQUENCY IDENTIFICATION MARKING SYSTEM. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.154] [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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21
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Muranishi Y, Sato T, Yutaka Y, Sakaguchi Y, Komatsu T, Hamaji M, Motoyama H, Hijiya K, Menju T, Aoyama A, Chen-Yoshikawa T, Sonobe M, Nakamura T, Date H. V-011DEVELOPMENT OF A NOVEL STABILIZING DEVICE FOR VIDEO-ASSISTED THORACIC SURGERY. Interact Cardiovasc Thorac Surg 2016. [DOI: 10.1093/icvts/ivw260.11] [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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22
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Nishida T, Ayaori M, Shiotani K, Uto-Kondo H, Sasaki M, Komatsu T, Endo Y, Ito M, Ishizuka M, Sakurada M, Ikewaki K. Beneficial effect of azilsartan and amlodipine on endothelial function in hypertensive patients. Atherosclerosis 2016. [DOI: 10.1016/j.atherosclerosis.2016.07.404] [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: 10/21/2022]
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Saito Y, Yasuhara H, Murakoshi S, Komatsu T, Fukatsu K, Uetera Y. Novel concept of cleanliness of instruments for robotic surgery. J Hosp Infect 2016; 93:360-1. [PMID: 27177694 DOI: 10.1016/j.jhin.2016.04.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2016] [Accepted: 04/14/2016] [Indexed: 11/18/2022]
Affiliation(s)
- Y Saito
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan.
| | - H Yasuhara
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan
| | - S Murakoshi
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan
| | - T Komatsu
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan
| | - K Fukatsu
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan
| | - Y Uetera
- Surgical Center, The University of Tokyo Hospital, Tokyo, Japan
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Komatsu T, Togo F, Mitani T, Hasegawa K, Kitajo K. P-075: Relationship of physical function and executive function in elderly people with mild cognitive impairment (MCI). Eur Geriatr Med 2015. [DOI: 10.1016/s1878-7649(15)30178-9] [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]
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25
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Ebisawa M, Iwano H, Nishikawa M, Tochigi Y, Komatsu T, Endou Y, Hirayama K, Taniyama H, Kadosawa T, Yokota H. Significance of caveolin-1 and matrix metalloproteinase 14 gene expression in canine mammary tumours. Vet J 2015; 206:191-6. [PMID: 26364240 DOI: 10.1016/j.tvjl.2015.07.020] [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] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Revised: 07/17/2015] [Accepted: 07/20/2015] [Indexed: 01/08/2023]
Abstract
Canine mammary tumours (CMTs) are the most common neoplasms affecting female dogs. There is an urgent need for molecular biomarkers that can detect early stages of the disease in order to improve accuracy of CMT diagnosis. The aim of this study was to examine whether caveolin-1 (Cav-1) and matrix metalloproteinase 14 (MMP14) are associated with CMT histological malignancy and invasion. Sixty-five benign and malignant CMT samples and six normal canine mammary glands were analysed using quantitative reverse transcription-polymerase chain reaction. Cav-1 and MMP14 genes were highly expressed in CMT tissues compared to normal tissues. Cav-1 especially was overexpressed in malignant and invasive CMT tissues. When a CMT cell line was cultured on fluorescent gelatin-coated coverslips, localisation of Cav-1 was observed at invadopodia-mediated degradation sites of the gelatin matrix. These findings suggest that Cav-1 may be involved in CMT invasion and that the markers may be useful for estimating CMT malignancy.
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Affiliation(s)
- M Ebisawa
- Laboratory of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - H Iwano
- Laboratory of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan.
| | - M Nishikawa
- Laboratory of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Y Tochigi
- Laboratory of Veterinary Physiology, Nippon Veterinary and Life Science University, 1-7-1 Kyonan-cho, Musashino-shi, Tokyo 180-8602, Japan
| | - T Komatsu
- Laboratory of Veterinary Clinical Oncology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - Y Endou
- Laboratory of Veterinary Clinical Oncology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - K Hirayama
- Laboratory of Veterinary Pathology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - H Taniyama
- Laboratory of Veterinary Pathology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - T Kadosawa
- Laboratory of Veterinary Clinical Oncology, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
| | - H Yokota
- Laboratory of Veterinary Biochemistry, Graduate School of Veterinary Medicine, Rakuno Gakuen University, Ebetsu, Hokkaido 069-8501, Japan
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Onogi A, Ogino A, Komatsu T, Shoji N, Shimizu K, Kurogi K, Yasumori T, Togashi K, Iwata H. Whole-genome prediction of fatty acid composition in meat of Japanese Black cattle. Anim Genet 2015; 46:557-9. [DOI: 10.1111/age.12300] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/21/2015] [Indexed: 11/30/2022]
Affiliation(s)
- A. Onogi
- Department of Agricultural and Environmental Biology; Graduate School of Agricultural and Life Sciences; The University of Tokyo; Tokyo 113-8657 Japan
| | - A. Ogino
- Maebashi Institute of Animal Science; Livestock Improvement Association of Japan, Inc.; Maebashi 371-0121 Japan
| | - T. Komatsu
- Agricultural Research Center; Ipponmatsu Torigoe Shinjo Yamagata 996-0041 Japan
| | - N. Shoji
- Agricultural Research Center; Ipponmatsu Torigoe Shinjo Yamagata 996-0041 Japan
| | - K. Shimizu
- Maebashi Institute of Animal Science; Livestock Improvement Association of Japan, Inc.; Maebashi 371-0121 Japan
| | - K. Kurogi
- Maebashi Institute of Animal Science; Livestock Improvement Association of Japan, Inc.; Maebashi 371-0121 Japan
| | - T. Yasumori
- Cattle Breeding Department (beef); Livestock Improvement Association of Japan, Inc.; Tokyo 135-0041 Japan
| | - K. Togashi
- Cattle Breeding Department (beef); Livestock Improvement Association of Japan, Inc.; Tokyo 135-0041 Japan
| | - H. Iwata
- Department of Agricultural and Environmental Biology; Graduate School of Agricultural and Life Sciences; The University of Tokyo; Tokyo 113-8657 Japan
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Onogi A, Ogino A, Komatsu T, Shoji N, Simizu K, Kurogi K, Yasumori T, Togashi K, Iwata H. Genomic prediction in Japanese Black cattle: application of a single-step approach to beef cattle. J Anim Sci 2015; 92:1931-8. [PMID: 24782393 DOI: 10.2527/jas.2014-7168] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The implementation of genomic selection for Japanese Black cattle, known for rich marbling of their meat, is now being explored. Although multiple-step methods are often adopted for dairy cattle, they present shortcomings such as bias and loss of information in addition to operational complexity. These can be avoided using single-step genomic BLUP (ssGBLUP) based on the relationship matrix H, which is constructed from the numerator relationship matrix (A) augmented by the genomic relationship matrix (G). This study assessed the use of ssGBLUP for 3 economically important traits in Japanese Black cattle. Three aspects of ssGBLUP that are important for practical use were examined specifically: the mixing proportions of blending G with A, selection of subsets of genotyped animals used for constructing H, and prediction ability for ungenotyped animals. Different mixing proportions were tested to assess the influence of these proportions on variance component estimation and prediction accuracy. For all traits, the highest or nearly highest accuracy was obtained when the adopted mixing proportion provided heritability closest to that inferred based on A. However, the accuracy did not increase greatly under adjustment of the mixing proportion, thereby suggesting that the influence of the mixing proportion on the accuracy was limited. Genotype data of influential bulls showed a greater contribution to accuracy than that of bulls that were less influential. Genotyping animals with phenotypic records increased the accuracy. It can be prioritized over genotyping bulls that are not influential on the population. These results are expected to present good guides to the future expansion of genotyped populations. Even for animals without genotype data but with genotyped sires, ssGBLUP provided more accurate prediction than BLUP did. For both phenotype and breeding value prediction, ssGBLUP provides more accurate prediction than BLUP, suggesting its usefulness in genomic selection in Japanese Black cattle.
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Affiliation(s)
- A Onogi
- Department of Agricultural and Environmental Biology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Tokyo 113-8657, Japan
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Fujita T, Kato M, Funahashi Y, Komatsu T, Kinukawa T, Kamihira O, Goto M. Factors having effect on graft survival in cadaveric renal transplantation. Transplant Proc 2014; 46:457-9. [PMID: 24655987 DOI: 10.1016/j.transproceed.2013.11.143] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2013] [Revised: 11/08/2013] [Accepted: 11/27/2013] [Indexed: 11/15/2022]
Abstract
BACKGROUND One of the problems of cadaveric renal transplantation is that its graft survival rate is less than that for living renal transplantation. We aim to study relationships between the graft survival of cadaveric renal transplantation patients and various factors. MATERIALS AND METHODS We retrospectively analyzed 350 cadaveric renal transplantation patients from our institutions from 1983 to 2011. Kaplan-Meier analysis was performed to evaluate graft survival ratios. Using a multivariable Cox regression model, we evaluated the relationship between graft survival and the factors such as age and gender of donor and recipient, body mass index of recipient, duration of hemodialysis, warm ischemic time, and acute rejection (AR), etc. RESULTS Among 235 males and 115 females, the overall mean age was 41 years. Median follow-up was 15 years (2 to 28 years). The graft survival ratio was 97% at 1 year, 85% at 5 years, and 71% at 10 years. Using the Cox regression model, graft survival was affected by donor age (younger than 60 years; hazard ratio [HR] 1.5; 95% confidence interval (CI) 1.0-2.0; P = .027) and early acute rejection (within 3 months; HR 2.1; CI 1.6-2.8; P < .001). CONCLUSIONS The graft survival of cadaveric renal transplantation patients is affected by factors of donor age and early AR.
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Affiliation(s)
- T Fujita
- Nagoya University Graduate School of Medicine, Aichi, Japan.
| | - M Kato
- Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Funahashi
- Nagoya University Graduate School of Medicine, Aichi, Japan
| | - T Komatsu
- Nagoya University Graduate School of Medicine, Aichi, Japan; Chukyo Hospital, Aichi, Japan
| | | | | | - M Goto
- Nagoya University Graduate School of Medicine, Aichi, Japan
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Komatsu T, Suwa S, Asada T. P044: Scientific investigation of the care for impairment of activities living for dementia. Eur Geriatr Med 2014. [DOI: 10.1016/s1878-7649(14)70221-9] [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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Hamaji M, Kojima F, Koyasu S, Tsuruyama T, Komatsu T, Ikuno T, Date H, Nakamura T. Development of a composite and vascularized tracheal scaffold in the omentum for in situ tissue engineering: a canine model. Interact Cardiovasc Thorac Surg 2014; 19:357-62. [DOI: 10.1093/icvts/ivu177] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [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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31
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Onogi A, Ogino A, Komatsu T, Shoji N, Simizu K, Kurogi K, Yasumori T, Togashi K, Iwata H. Genomic prediction in Japanese Black cattle: application of a single-step approach to beef cattle. J Anim Sci 2014. [DOI: 10.2527/jas.2013-7168] [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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32
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Komatsu T, Komatsu S, Yaguchi I. Successful percutaneous coronary thrombolytic therapy of myocardial infarction caused by Cabrol conduit graft. Heart Asia 2014; 6:30. [DOI: 10.1136/heartasia-2013-010433] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Abstract
Human serum albumin microtubes captured Escherichia coli (E. coli) into their one-dimensional pore space interior with a high efficiency. Similar MTs including an Fe3O4 layer also captured E. coli and were manipulated by a magnetic field.
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Affiliation(s)
- S. Yuge
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551, Japan
| | - M. Akiyama
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551, Japan
| | - T. Komatsu
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551, Japan
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Daijima Y, Komatsu T. Haemoglobin wrapped covalently by human serum albumin mutants containing Mn(iii) protoporphyrin IX: an O2 complex stable in H2O2 solution. Chem Commun (Camb) 2014; 50:14716-9. [DOI: 10.1039/c4cc06076h] [Citation(s) in RCA: 18] [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: 11/21/2022]
Abstract
Haemoglobin (Hb) wrapped covalently by human serum albumin mutants [HSA(Y161H)] containing Mn(iii) protoporphyrin IX (MnPP), the Hb–[HSA(Y161H)–MnPP]3 cluster, formed a stable O2-complex even in H2O2 solution.
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Affiliation(s)
- Y. Daijima
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551, Japan
| | - T. Komatsu
- Department of Applied Chemistry
- Faculty of Science and Engineering
- Chuo University
- Tokyo 112-8551, Japan
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Mizuno S, Ajisaka T, Lahbib S, Kokubu Y, Alabsi MN, Komatsu T. Spatial distributions of floating seaweeds in the East China Sea from late winter to early spring. J Appl Phycol 2013; 26:1159-1167. [PMID: 24771973 PMCID: PMC3988520 DOI: 10.1007/s10811-013-0139-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/26/2013] [Revised: 08/25/2013] [Accepted: 08/26/2013] [Indexed: 05/12/2023]
Abstract
Floating seaweeds play an important role as a habitat for many animals accompanying or attaching to them in offshore waters. It was in 2000 that the first report described abundant distributions of floating seaweeds in offshore waters in the East China Sea in spring. Young individuals of the yellowtail Seriola quinqueradiata are captured for aquaculture purposes from floating seaweeds in the East China Sea. Therefore, a sound understanding of the distributions of floating seaweeds in the East China Sea is needed. Detailed information is especially important during the late winter to early spring, which corresponds to the juvenile period of the yellowtail. Thus, field surveys using R/V Tansei-Maru were conducted in the Japanese Exclusive Economic Zone in the East China Sea from late winter to early spring in 2010 and 2011. We obtained positions of the vessel by GPS and transversal distances from the vessel to a raft by visual observation. Distance sampling method (Thomas et al. 2010) was applied to estimation of floating seaweed densities (rafts km-2). Seaweed rafts were also randomly sampled using nets during the research cruises. In the East China Sea, seaweed rafts were distributed mainly on the continental shelf west of the Kuroshio, especially in waters between 26° N and 30° N. Collected rafts consisted of only one species, Sargassum horneri (Turner) C. Agardh. Taking into account surface currents and geographical distribution of S. horneri, it is estimated that these floating seaweeds originated from natural beds along the coast between mid and south China. Considering the approximate travel times, it is suggested that floating patches are colonized by yellowtails early on during their trips, i.e., close to the Chinese coast.
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Affiliation(s)
- S. Mizuno
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564 Japan
| | - T. Ajisaka
- Kyoto University, Oiwake, Kitashirakawa, Sakyou, Kyoto, Kyoto 606-8502 Japan
| | - S. Lahbib
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564 Japan
| | - Y. Kokubu
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564 Japan
| | - M. N. Alabsi
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564 Japan
| | - T. Komatsu
- Atmosphere and Ocean Research Institute, University of Tokyo, 5-1-5, Kashiwanoha, Kashiwa, Chiba 277-8564 Japan
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Ayaori M, Uto-Kondo H, Yogo M, Sasaki M, Takiguchi S, Yakushiji E, Komatsu T, Ogura M, Endo Y, Ikewaki K. Ezetimibe enhances macrophage reverse cholesterol transport in Golden Syrian hamsters. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht309.p4150] [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: 11/15/2022] Open
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Imai S, Fukui M, Ozasa N, Ozeki T, Kurokawa M, Komatsu T, Kajiyama S. Eating vegetables before carbohydrates improves postprandial glucose excursions. Diabet Med 2013; 30:370-2. [PMID: 23167256 PMCID: PMC3674531 DOI: 10.1111/dme.12073] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Revised: 10/15/2012] [Accepted: 11/16/2012] [Indexed: 01/06/2023]
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38
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Shinozaki K, Noji A, Honma T, Komatsu T. Morphology and photoluminescence properties of Er3+-doped CaF2 nanocrystals patterned by laser irradiation in oxyfluoride glasses. J Fluor Chem 2013. [DOI: 10.1016/j.jfluchem.2012.10.007] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [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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Ida H, Shinozaki K, Honma T, Oh-ishi K, Komatsu T. Synthesis and morphology of Ba1−xRE2x/3Nb2O6 nanocrystals with tungsten bronze structure in RE2O3–BaO–Nb2O5–B2O3 glasses (RE: Sm, Eu, Gd, Dy, Er). J SOLID STATE CHEM 2012. [DOI: 10.1016/j.jssc.2012.07.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [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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Katsuyama S, Mizoguchi H, Kuwahata H, Komatsu T, Nagaoka K, Nakamura H, Bagetta G, Sakurada T, Sakurada S. Involvement of peripheral cannabinoid and opioid receptors in β-caryophyllene-induced antinociception. Eur J Pain 2012; 17:664-75. [DOI: 10.1002/j.1532-2149.2012.00242.x] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/26/2012] [Indexed: 01/22/2023]
Affiliation(s)
| | - H. Mizoguchi
- Department of Physiology and Anatomy; Tohoku Pharmaceutical University; Sendai; Japan
| | - H. Kuwahata
- Department of Pharmacology; Daiichi College of Pharmaceutical Sciences; Fukuoka; Japan
| | - T. Komatsu
- Department of Pharmacology; Daiichi College of Pharmaceutical Sciences; Fukuoka; Japan
| | - K. Nagaoka
- Department of Physiology and Anatomy; Tohoku Pharmaceutical University; Sendai; Japan
| | - H. Nakamura
- Department of Clinical Pharmaceutics; Tohoku Pharmaceutical University; Sendai; Japan
| | - G. Bagetta
- Department of Pharmacobiology and University Consortium for Adaptive Disorders and Headache (UCADH), Section of Neuropharmacology of Normal and Pathological Neuronal Plasticity; University of Calabria; Arcavacata di Rende; Italy
| | - T. Sakurada
- Department of Pharmacology; Daiichi College of Pharmaceutical Sciences; Fukuoka; Japan
| | - S. Sakurada
- Department of Physiology and Anatomy; Tohoku Pharmaceutical University; Sendai; Japan
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Suzuki E, Terada S, Ueda H, Fujita T, Komatsu T, Takayama S, Reed JC. Establishing apoptosis resistant cell lines for improving protein productivity of cell culture. Cytotechnology 2012; 23:55-9. [PMID: 22358521 DOI: 10.1023/a:1007942929800] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The authors established apoptosis resistant COS-1, myeloma, hybridoma, and Friend leukemia cell lines by genetically engineering cells, aiming at more efficient protein production by cell culture. COS-1 cells, which are most widely used for eukariotic gene expression, were transfected with human bcl-2 gene. Both bcl-2 and mock transfected COS-1 cells were cultured at low (0.2%) serum concentration for 9 days. The final viable cell number of the bcl-2 transfected cells was ninefold of that of the mock transfectants. Both bcl-2 and mock transfectants were further transfected with the vector pcDNA-λ containing SV40 ori and immunoglobulin λ gene for transiently expressing λ protein. The bcl-2 expressing COS-1 cells produced more λ protein than the mock transfected COS-1 cells after 4 days posttransfection.Mouse myeloma p3-X63-Ag.8.653 cells, which are widely used as the partner for preparing hybridoma, and hybridoma 2E3 cells were transfected with human bcl-2 gene. Both bcl-2 transfected myeloma and hybridoma survived longer than the corresponding original cells in batch culture. The bcl-2 transfected 2E3 cells survived 2 to 4 four days longer in culture, producing 1.5- to 4-fold amount of antibody in comparison with the mock transfectants.Coexpression of bag-1 with bcl-2 improved survival of hybridoma 2E3 cells more than bcl-2 expression alone. The bag-1 and bcl-2 coexpressing cells produced more IgG than the the cells expressing bcl-2 alone.Apoptosis of Friend murine erythroleukemia(F-MEL) cells was suppressed with antisense c-jun expression. The antisense c-jun expressing cells survived 16 days at non-growth state.
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Affiliation(s)
- E Suzuki
- Department of Chemistry and Biotechnology, Graduate School of Engineering, The University of Tokyo, Hongo, Bunkyoku, Tokyo, 113, Japan
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Terada S, Komatsu T, Fujita T, Terakawa A, Nagamune T, Takayama S, Reed JC, Suzuki E. Co-expression of bcl-2 and bag-1, apoptosis suppressing genes, prolonged viable culture period of hybridoma and enhanced antibody production. Cytotechnology 2012; 31:143-51. [PMID: 19003134 DOI: 10.1023/a:1008080407581] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Human bcl-2 and bag-1 DNA were introduced into mouse hybridoma 2E3- O cells and expressed. The expression of bcl-2 in BCMGneo-bcl2 transfectants was confirmed by ELISA and that of bag-1 in pZeo-bag1 was confirmed by western blotting. In batch cultures, the over-expression of bcl-2 prolonged the culture period by 2 days and co-expression of bcl-2 and bag-1 prolonged the culture period by 3 days. The delayed increase in the dead cell number in culture of the bcl-2 and bag-1 cotransfectant indicated the additional antiapoptosis effect of bcl-2 and bag-1 cotransfection in comparison with the bcl-2 only transfection. The bcl-2 transfectants (2E3O-Bcl2) produced antibody twofold per batch culture in comparison with 2E3-O cells transfected with BCMGSneo (2E3O-Mock). Enhancement of this MoAb production was due to the improved survival of the cells and was not due to stimulation of antibody production rate per cell by Bcl-2 expression. And the bcl-2 and bag-1 co-transfectant (2E3O-Bcl2-BAG1) produced antibody approximately fourfold of 2E3O-Mock per batch culture. Enhancement of this MoAb production was due to the improved survival of the cells and was partly due to stimulation of MoAb production rate per cell in the non-growing phase by the cotransfection. The method to engineer hybridoma cells genetically with bcl-2 and bag-1 for increasing viability and productivity would be widely applied for improving antibody productivity of hybridoma cultures.
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Narimatsu H, Kakinuma A, Sawa T, Komatsu T, Matsumura T, Kami M, Nakata Y. Usefulness of a bidirectional e-learning material for explaining surgical anesthesia to cancer patients. Ann Oncol 2011; 22:2121-2128. [DOI: 10.1093/annonc/mdq718] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [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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Komatsu T, Itou T, Hakamazuka T, Kitami M. [Respiratory distress due to rapid expansion of intrapericardial bronchogenic cyst]. Kyobu Geka 2011; 64:574-578. [PMID: 21766711] [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: 05/31/2023]
Abstract
A 79-year-old female who had been observed for an intrapericardial cyst for 3 years was admitted due to severe dyspnea and back pain. During 3 years observation, there were no symptoms and no growth of the cyst. Computed tomography scans showed rapid expansion of the cyst compared with an magnetic resonance imaging (MRI) taken 9-days before when she visited our hospital for the 1st time. Urgent complete extirpation of the tumor was successfully done and a histological diagnosis found it was an intrapericardial bronchogenic cyst. This is a 1st report of intrapericardial bronchogenic cyst of which rapid expansion is clearly demonstrated by radiology. It is suggested that complete surgical excision of intrapericardial bronchogenic cysts at the time of diagnosis even if asymptomatic.
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Affiliation(s)
- T Komatsu
- Department of Cardiovascular Surgery, Ishinomaki Red Cross Hospital, Ishinomaki, Japan
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Komatsu T, Yaguchi I, Sakai Y. Successful transcatheter coil embolisation of a giant coronary artery fistula. Heart Asia 2011; 3:25. [DOI: 10.1136/ha.2010.003467] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Suzuki T, Minami H, Komatsu T, Masusda R, Kobayashi Y, Sakamoto A, Sato Y, Inoue H, Serada K. Prolonged carbon dioxide insufflation under general anesthesia for endoscopic submucosal dissection. Endoscopy 2010; 42:1021-9. [PMID: 21120775 DOI: 10.1055/s-0030-1255969] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND AND STUDY AIMS Carbon dioxide (CO (2)) insufflation for endoscopy has been reported to provide superior recovery and is expected to reduce the risk of serious complications, including air embolism and tension pneumothorax, whereas general anesthesia offers some advantages not found under intravenous sedation. Little is known about the effect of prolonged CO (2) insufflation into gastrointestinal tracts on arterial CO (2) tension (PaCO (2)). Here we introduce the use of general anesthesia with CO (2) insufflation for esophagogastroduodenal endoscopic submucosal dissection (ESD). PATIENTS AND METHODS A prospective observational study was conducted in a university-affiliated hospital. A total of 100 patients were scheduled for esophagogastroduodenal ESD under general anesthesia with CO (2) insufflation, using standardized anesthesia techniques and unchanged ventilatory settings. Arterial blood gas analyses were repeated at predetermined time intervals. RESULTS Of the initial 100 participants, 94 patients undergoing ESD and four patients undergoing endoscopic mucosal resection completed the study. The median procedure time was 122 minutes (range 29 - 309 minutes). The median baseline PaCO (2) of 28 mmHg increased to a median peak PaCO (2) of 39 mmHg ( P < 0.001), with marked inter-individual variability in the time courses of changes in PaCO (2). The correlation coefficient of PaCO (2) with the procedure time was low (r = 0.194; n = 577, P < 0.0001). FEV (1.0) % (forced expiratory volume in 1 second/forced vital capacity) of < 70 % and esophagoscopy vs. gastroduodenoscopy were relative enhancement factors of PaCO (2). CONCLUSION Increases of PaCO (2) during esophagogastroduodenal ESD under general anesthesia with CO (2) insufflation remained within acceptable or readily controllable ranges, and are little enhanced by prolongation of the procedure. Esophagogastroduodenal ESD can be performed safely and feasibly with this procedure.
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Affiliation(s)
- T Suzuki
- Department of Anesthesia, Showa University Northern Yokohama Hospital, Yokohama, Kanagawa, Japan.
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Komatsu T, Oizumi Y, Kunieda E, Tamai Y, Akiba T, Kogawa A. Definitive Chemoradiotherapy of Limited-disease Small Cell Lung Cancer: Retrospective Analysis of New Predictive Factors Affecting the Treatment Results. Int J Radiat Oncol Biol Phys 2010. [DOI: 10.1016/j.ijrobp.2010.07.1243] [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: 11/28/2022]
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Funahashi Y, Hattori R, Matsukawa Y, Yamamoto T, Mizutani K, Yoshino Y, Komatsu T, Sassa N, Hagikura S, Gotoh M. [Solitary fibrous tumor of the seminal vesicle]. Aktuelle Urol 2010; 41:326-7. [PMID: 20309805 DOI: 10.1055/s-0030-1247319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
A 56-year-old man presented to our hospital with a pelvic mass. The tumor was diagnosed to occur from right seminal vesicle and to be a benign solitary fibrous tumor by transrectal tumor biopsy. The tumor enlarged during follow up, and he under-went resection of the tumor.
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Dagvadorj J, Tumurkhuu G, Naiki Y, Noman ASM, Iftakhar-E-Khuda I, Badamtseren B, Komatsu T, Koide N, Yoshida T, Yokochi T. Endotoxin-induced lung injury in α-galactosylceramide-sensitized mice is caused by failure of interleukin-4 production in lung natural killer T cells. Clin Exp Immunol 2010; 162:169-77. [PMID: 20659123 DOI: 10.1111/j.1365-2249.2010.04225.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Administration of bacterial lipopolysaccharide (LPS) known as endotoxin into α-galactosylceramide (α-GalCer)-sensitized mice causes severe lung lesions but few hepatic lesions in lethal shock, and interferon (IFN)-γ is suggested to play a pivotal role in preparation of the lung lesions. In order to clarify the mechanism of how α-GalCer sensitization causes lung lesions exclusively in mice, we examined the differential responsiveness of lungs and livers to α-GalCer sensitization. Although lung and liver natural killer T (NK T) cells both produced IFN-γ in response to α-GalCer, IFN-γ signalling was triggered only in the lungs of α-GalCer-sensitized mice. Lung NK T cells did not produce interleukin (IL)-4 in response to α-GalCer and it did not induce the expression of suppressor of cytokine signalling 1 (SOCS1) in the lungs. Conversely, IL-4 produced by liver NK T cells led to the expression of SOCS1 in the livers of the mice. Neutralization of IL-4 reduced SOCS1 expression in the livers and exacerbated LPS-induced hepatic lesions. IL-10 was produced by liver NK T cells but not lung NK T cells. However, IL-10 was produced constitutively by alveolar epithelial cells in normal lung. Lung NK T cells and liver NK T cells might express CD8 and CD4, respectively. Based on the fact that IL-4 inhibited IFN-γ signalling in the livers of α-GalCer-sensitized mice via SOCS1 expression and signal transducer and activator of transcription 1 (STAT-1) activation, no inhibition of the IFN-γ signalling in the lungs caused LPS-induced lung lesions in α-GalCer-sensitized mice. The detailed mechanism of development of the lung lesions in α-GalCer-sensitized mice is discussed.
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Affiliation(s)
- J Dagvadorj
- Department of Microbiology and Immunology, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan
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Kato Y, Koide N, Komatsu T, Tumurkhuu G, Dagvadorj J, Kato K, Yokochi T. Metformin attenuates production of nitric oxide in response to lipopolysaccharide by inhibiting MyD88-independent pathway. Horm Metab Res 2010; 42:632-6. [PMID: 20560107 DOI: 10.1055/s-0030-1255033] [Citation(s) in RCA: 19] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Metformin is reported to ameliorate inflammation in diabetic patients. The effect of metformin on lipopolysaccharide-induced nitric oxide production was studied by using RAW 264.7 macrophage-like cells. The action of metformin was analyzed by dividing lipopolysaccharide signaling into the MyD88-dependent and -independent pathways. Metformin significantly reduced the expression of an inducible type of nitric oxide synthase and inhibited lipopolysaccharide-induced nitric oxide production. On the other hand, metformin did not inhibit lipopolysaccharide-induced tumor necrosis factor-alpha production. The expression levels of interferon-beta protein and mRNA, which is a key molecule in MyD88-independent pathway, were significantly inhibited by metformin. Compound C, a specific AMP-activated protein kinase inhibitor, did not affect the inhibitory action of metformin. Metformin was suggested to inhibit lipopolysaccharide-induced nitric oxide production via inhibition of interferon-beta production in MyD88-independent pathway. Metformin might exhibit an anti- inflammatory action on diabetic complications as well as the antidiabetic action.
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Affiliation(s)
- Y Kato
- Department of Internal Medicine, Division of Endocrinology, Metabolism and Diabetes, Aichi Medical University School of Medicine, Nagakute, Aichi, Japan.
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