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Ikenaga M, Ohta K, Ueda M, Sakai T, Sato G, Chinen Y, Itakura H, Kato R, Iede K, Tsuda Y, Nakashima S, Endo S, Yasui M, Noura S, Yamada T. [A Case of Sister Mary Joseph's Nodule from Multiple Colon Cancers]. Gan To Kagaku Ryoho 2018; 45:1898-1900. [PMID: 30692391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
A 94-year-old woman, who had been treated for multiple colon cancers 4 years ago, complained of umbilicus induration and had been followed up in a previous hospital with a diagnosis of periumbilical inflammation. Four years and 3 months postoperatively, the umbilical induration was enlarged, and umbilical metastasis of adenocarcinoma was diagnosed on biopsy. Umbilical resection was performed, and multiple peritoneal metastases were revealed. Umbilical metastases may worsen the patient's quality of life; thus, local resection was recommended positively.
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Nakashima S, Yamada T, Sato G, Sakai T, Chinen Y, Itakura H, Kato R, Ueda M, Tsuda Y, Ohta K, Matsuyama J, Ikenaga M. A case of completely isolated advanced enteric duplication cyst cancer performed partial pancreatectomy. Int J Surg Case Rep 2018; 54:83-86. [PMID: 30553095 PMCID: PMC6297057 DOI: 10.1016/j.ijscr.2018.11.060] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 11/22/2018] [Accepted: 11/25/2018] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION Enteric duplication cysts are rare and, in addition, isolated enteric duplication cysts are lower morbidity prevalence rate. These cysts lack a connection to the gastrointestinal tract or the adjacent mesenteric vasculature and have only been reported in 10 case reports. In these reports, only two reports were cases with malignant transformation. Our case was a report for the advanced cancer of the isolated enteric duplication cyst. CASE PRESENTATION The patient was a 43 year-old woman with slightly abdominal pain and mass formation. The abdominal contrast-enhanced computed tomography showed 130 × 100 × 90 mm huge cystic mass existed in right upper peritoneal cavity. The cystic mass had thickened wall and many enhanced nodules. As these imaging findings suggested a tumor originated from pancreas and the preoperative diagnose was suspect of mucinous cystic neoplasm. In operative findings, the tumor originated from pancreatic head and did not attach to gastrointestinal tract. Final pathology indicated the cyst was an isolated advanced enteric duplication cyst cancer and not originated from pancreas. CONCLUSION We experienced an extremely rare case of completely isolated advanced enteric duplication cyst cancer. Unique to this case, the preoperative diagnosis was suspect of mucinous cystic neoplasm arising from pancreas head and partial pancreatectomy was performed. However, in the pathological findings, this cyst diagnosed advanced enteric duplication cyst cancer.
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Kato R, Yamasaki M, Urakawa S, Nishida K, Makino T, Morimoto-Okazawa A, Kawashima A, Iwahori K, Suzuki S, Ueda R, Mori M, Satoh T, Doki Y, Wada H. Increased Tim-3 + T cells in PBMCs during nivolumab therapy correlate with responses and prognosis of advanced esophageal squamous cell carcinoma patients. Cancer Immunol Immunother 2018; 67:1673-1683. [PMID: 30128737 PMCID: PMC11028199 DOI: 10.1007/s00262-018-2225-x] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 08/01/2018] [Indexed: 12/21/2022]
Abstract
The recent development of immune checkpoint inhibitors for many types of cancers has prompted us to identify markers that predict patients with clinical benefits. Several trials on nivolumab for the treatment of esophageal squamous cell carcinoma (ESCC) have been performed worldwide, and the identification of markers specific to ESCC is urgently needed. We conducted a clinical trial on nivolumab for advanced ESCC (JapicCTI-No.142422) and investigated markers using peripheral blood collected from 20 patients enrolled in our institute, including 1 with a complete response (CR), 5 with a partial response (PR), 6 with a stable disease (SD), and 8 with a progressive disease (PD) as clinical responses. The expression of surface molecules and cytokine production by T cells were analyzed using flow cytometry, and clinicopathological factors and general blood parameters were examined. Albumin, neutrophils, %Tim3, %OX40, %CD103, %CD45RA-CD27-, and IL-1b after the first cycle of nivolumab treatment, but not at baseline, distinguished CR/PR from SD/PD patients. When markers to distinguish longer survivors with nivolumab therapy were analyzed, changes in these levels between baseline and after the first cycle of nivolumab treatment, but not levels at each period, were indicative, similar to the tumor burden. Among them, elevations in %Tim-3+CD4 had a marked impact on survival rates. In conclusion, dynamic elevations in %Tim-3 in T cells in the early period of nivolumab therapy have potential as a marker for the clinical responses and prognosis of advanced ESCC patients.
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Kato R, Yamasaki Y, Tanaka S. Triamcinolone injection and filling method to prevent stricture after esophageal endoscopic submucosal dissection. Dig Endosc 2018; 30:795-796. [PMID: 30007079 DOI: 10.1111/den.13236] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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80
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Sunami K, Nishikawa T, Miyagawa K, Horiuchi S, Kato R, Miyamoto T, Okamoto H, Kanoda K. Evidence for solitonic spin excitations from a charge-lattice-coupled ferroelectric order. SCIENCE ADVANCES 2018; 4:eaau7725. [PMID: 30515457 PMCID: PMC6269158 DOI: 10.1126/sciadv.aau7725] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/13/2018] [Accepted: 10/30/2018] [Indexed: 06/09/2023]
Abstract
Topological defects have been explored in different fields ranging from condensed matter physics and particle physics to cosmology. In condensed matter, strong coupling between charge, spin, and lattice degrees of freedom brings about emergent excitations with topological characteristics at low energies. One-dimensional (1D) systems with degenerate dimerization patterns are typical stages for the generation of topological defects, dubbed "solitons"; for instance, charged solitons are responsible for high electrical conductivity in doped trans-polyacetylene. Here, we provide evidence based on a nuclear magnetic resonance (NMR) study for mobile spin solitons deconfined from a strongly charge-lattice-coupled spin-singlet ferroelectric order in a quasi-1D organic charge-transfer complex. The NMR spectral shift and relaxation rate associated with static and dynamic spin susceptibilities indicate that the ferroelectric order is violated by dilute solitonic spin excitations, which were further demonstrated to move diffusively by the frequency dependence of the relaxation rate. The traveling solitons revealed here may promise the emergence of anomalous electrical and thermal transport.
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Miyajima-Tabata A, Komoriya K, Tanaka M, Hiruma H, Kato R, Haishima Y. Evaluation of biomarkers for haemocomopatibility of polymer biomaterials. Toxicol Lett 2018. [DOI: 10.1016/j.toxlet.2018.06.559] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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82
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Matsuba S, Kato R, Okumura K, Sawada K, Hattori T. Extracellular Bio-imaging of Acetylcholine-stimulated PC12 Cells Using a Calcium and Potassium Multi-ion Image Sensor. ANAL SCI 2018; 34:553-558. [PMID: 29743426 DOI: 10.2116/analsci.17p552] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
In biochemistry, Ca2+ and K+ play essential roles to control signal transduction. Much interest has been focused on ion-imaging, which facilitates understanding of their ion flux dynamics. In this paper, we report a calcium and potassium multi-ion image sensor and its application to living cells (PC12). The multi-ion sensor had two selective plasticized poly(vinyl chloride) membranes containing ionophores. Each region on the sensor responded to only the corresponding ion. The multi-ion sensor has many advantages including not only label-free and real-time measurement but also simultaneous detection of Ca2+ and K+. Cultured PC12 cells treated with nerve growth factor were prepared, and a practical observation for the cells was conducted with the sensor. After the PC12 cells were stimulated by acetylcholine, only the extracellular Ca2+ concentration increased while there was no increase in the extracellular K+ concentration. Through the practical observation, we demonstrated that the sensor was helpful for analyzing the cell events with changing Ca2+ and/or K+ concentration.
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Kato R, Iwamuro M, Hiraoka S, Takashima S, Inokuchi T, Takahara M, Kondo Y, Tanaka T, Okada H. Evaluation of the Upper Gastrointestinal Tract in Ulcerative Colitis Patients. ACTA MEDICA OKAYAMA 2018; 72:105-113. [PMID: 29674758 DOI: 10.18926/amo/55850] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
To analyze the clinical characteristics of patients with ulcerative colitis who have upper gastrointestinal lesions, we retrospectively reviewed the data of 216 patients with ulcerative colitis who underwent esophagogastroduodenoscopy at our institute in April 2008-March 2016. We investigated the endoscopic features and compared the clinical characteristics between the patients with and without upper gastrointestinal lesions. Forty-two patients (19.4%) had upper gastrointestinal lesions, including multiple erosions (n=18), bamboo joint-like appearance (n=17), mucosa with white spots (n=4), friable mucosa (n=2), ulcer (n=1), and purulent deposits within the mucosa (n=1) in the stomach and/or duodenum. Compared to the patients without upper gastrointestinal lesions, those with upper gastrointestinal lesions showed significantly more frequent extraintestinal manifestations (19.0% vs. 8.0%, p<0.05) and a significant history of colectomy (33.3% vs. 12.1%, p<0.01). There were no significant differences with regard to the sex ratio, age at esophagogastroduodenoscopy, gastrointestinal symptoms, time since the diagnosis of ulcerative colitis, type of colitis at the initial diagnosis of ulcerative colitis, or gastric atrophy between the groups. In conclusion, gastroduodenal lesions were identified in 19.4% of the patients with ulcerative colitis. Esophagogastroduodenoscopy is particularly recommended for ulcerative colitis patients who show extraintestinal manifestations and for those who have undergone a colectomy.
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Pustogow A, Bories M, Löhle A, Rösslhuber R, Zhukova E, Gorshunov B, Tomić S, Schlueter JA, Hübner R, Hiramatsu T, Yoshida Y, Saito G, Kato R, Lee TH, Dobrosavljević V, Fratini S, Dressel M. Quantum spin liquids unveil the genuine Mott state. NATURE MATERIALS 2018; 17:773-777. [PMID: 30082905 DOI: 10.1038/s41563-018-0140-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 06/26/2018] [Indexed: 05/13/2023]
Abstract
The localization of charge carriers by electronic repulsion was suggested by Mott in the 1930s to explain the insulating state observed in supposedly metallic NiO. The Mott metal-insulator transition has been subject of intense investigations ever since1-3-not least for its relation to high-temperature superconductivity4. A detailed comparison to real materials, however, is lacking because the pristine Mott state is commonly obscured by antiferromagnetism and a complicated band structure. Here we study organic quantum spin liquids, prototype realizations of the single-band Hubbard model in the absence of magnetic order. Mapping the Hubbard bands by optical spectroscopy provides an absolute measure of the interaction strength and bandwidth-the crucial parameters that enter calculations. In this way, we advance beyond conventional temperature-pressure plots and quantitatively compose a generic phase diagram for all genuine Mott insulators based on the absolute strength of the electronic correlations. We also identify metallic quantum fluctuations as a precursor of the Mott insulator-metal transition, previously predicted but never observed. Our results suggest that all relevant phenomena in the phase diagram scale with the Coulomb repulsion U, which provides a direct link to unconventional superconductivity in cuprates and other strongly correlated materials.
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85
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Endo S, Ikenaga M, Ohta K, Ueda M, Tsuda Y, Kato R, Itakura H, Matsuyama J, Nishikawa K, Yamada T. Prognostic factors for cytology-positive gastric cancer. Surg Today 2018; 49:56-64. [DOI: 10.1007/s00595-018-1704-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/19/2018] [Indexed: 12/27/2022]
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86
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Kato R, Iwamuro M, Shiraha H, Horiguchi S, Tanaka E, Matsumoto K, Ohyama A, Sawahara H, Nagahara T, Uchida D, Tsutsumi K, Okada H. Dipeptide γ-secretase inhibitor treatment enhances the anti-tumor effects of cisplatin against gastric cancer by suppressing cancer stem cell properties. Oncol Lett 2018; 16:5426-5432. [PMID: 30250614 DOI: 10.3892/ol.2018.9301] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 08/02/2018] [Indexed: 12/23/2022] Open
Abstract
The γ-secretase inhibitor blocks Notch activity by preventing its cleavage at the cell surface. In the present study, the effect of the γ-secretase inhibitor on the viability of gastric cancer cells when administered in combination with cisplatin was investigated, with particular focus on CD44highLgr-5high cancer cells. The four gastric cancer cell lines, MKN45, MKN74, SC-6-JCK and SH-10-TC, were used for the experiments. In the MTT assay, treatment with 25 µM dipeptide γ-secretase inhibitor (DAPT) alone did not affect cell proliferation in any of the four cell lines. Gastric cancer cells subjected to combination treatment with DAPT and cisplatin exhibited decreased viability when compared with those treated with cisplatin alone. Flow cytometry was performed to evaluate the expression of cluster of differentiation (CD)-44 and leucine-rich repeat-containing G-protein coupled receptor 5 (Lgr-5), two cancer stem cell markers in gastric cancers. Treatment with cisplatin alone significantly increased the proportion of CD44highLgr-5high cells. However, the addition of DAPT to cisplatin reduced the CD44highLgr-5high fraction, suggesting that DAPT reduced the number of gastric cancer cells. In conclusion, the present study demonstrated the synergistic effects of DAPT in combination with cisplatin by decreasing the survival of gastric cancer cells. In addition, combination treatment with DAPT reduced the number of CD44highLgr-5high cells, which are thought to exhibit cancer stem cell properties. These results highlight the therapeutic potential of DAPT in gastric cancer treatment.
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Pustogow A, Saito Y, Zhukova E, Gorshunov B, Kato R, Lee TH, Fratini S, Dobrosavljević V, Dressel M. Low-Energy Excitations in Quantum Spin Liquids Identified by Optical Spectroscopy. PHYSICAL REVIEW LETTERS 2018; 121:056402. [PMID: 30118313 DOI: 10.1103/physrevlett.121.056402] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Indexed: 06/08/2023]
Abstract
The electrodynamic response of organic spin liquids with highly frustrated triangular lattices has been measured in a wide energy range. While the overall optical spectra of these Mott insulators are governed by transitions between the Hubbard bands, distinct in-gap excitations can be identified at low temperatures and frequencies, which we attribute to the quantum-spin-liquid state. For the strongly correlated β^{'}-EtMe_{3}Sb[Pd(dmit)_{2}]_{2}, we discover enhanced conductivity below 175 cm^{-1}, comparable to the energy of the magnetic coupling J≈250 K. For ω→0, these low-frequency excitations vanish faster than the charge-carrier response subject to Mott-Hubbard correlations, resulting in a dome-shaped band peaked at 100 cm^{-1}. Possible relations to spinons, magnons, and disorder are discussed.
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Hayashi T, Matsumoto S, Hosokawa A, Yamamoto K, Nomura A, Woo E, Imano H, Kato R, Ijiri Y, Yamaguchi T, Izumi Y, Yoshiyama M, Okada Y, Asahi M. P2501Rivaroxaban combined with spironolactone attenuates cardiovascular remodeling due to hypoxia in pulmonary arterial hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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89
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Murakami T, Ikari Y, Taniai S, Ishibashi Y, Taguchi I, Ako J, Kyono H, Yoshizawa M, Itoh T, Morino Y, Kato R, Sakuma M, Sugimura H, Akashi Y, Yoshino H. P4393The clinical characteristics of mortality in patients with Takotsubo Syndrome during hospitalization-A Multicenter Registry in Eight-University Hospitals in East Japan. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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90
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Nagase H, Yamasaki M, Yanagimoto Y, Kanemura T, Higashi S, Momose K, Kato R, Miyazaki Y, Makino T, Takahashi T, Kurokawa Y, Miyata H, Takiguchi S, Mori M, Doki Y, Nakajima K. Successful Endoscopic Treatment of Post-esophagectomy Refractory Reflux Using OverStitch: The First Clinical Case. CLINICAL MEDICINE INSIGHTS. GASTROENTEROLOGY 2018; 11:1179552218784946. [PMID: 30013415 PMCID: PMC6043920 DOI: 10.1177/1179552218784946] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/25/2017] [Accepted: 06/01/2018] [Indexed: 12/05/2022]
Abstract
Aims: The reflux of duodeno-gastric contents into the remnant esophagus (gastric tube-esophageal reflux: GTER) is a significant issues in long-term esophageal cancer survivors after radical esophagectomy. We attempted endoscopic valve (funnel) creation for prevention for GTER using OverStitch endoscopic suturing system. Methods: The OverStitch was mounted onto a standard double-channel endoscope. Under general anesthesia, the funnel creation was attempted by placing semi-full thickness sutures on the gastric wall, at 3 cm distal to the primary esophago-gastric anastomosis. The postoperative outcomes were also evaluated. Results: In total, 4 sutures were needed and the operating time was 62 minutes without complication. The endoscopic and swallowing studies, as well as pH profile, were all improved postoperatively. The patient’s quality of life was dramatically improved with complete disappearance of night-time reflux in spine position. Conclusions: Endoscopic antireflux funnel creation was feasible and safe. This procedure may become a useful treatment for patients with severe GTER after esophagectomy.
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Fujisawa I, Kitamura Y, Kato R, Aoki K. Crystal structures of resorcin[4]arene and pyrogallol[4]arene complexes with proline: A model for proline recognition through C H···π interaction. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2018.02.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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92
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Hong H, Kretzmer R, Kato R, Ward SD. 1156 A Pediatric Case of UNC80 Mutation and Abnormal Respiratory Control Treated with Positive Airway Pressure Therapy. Sleep 2018. [DOI: 10.1093/sleep/zsy063.1155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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93
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Sugihara Y, Harada K, Kato R, Yamauchi K, Takashima S, Takei D, Yamasaki Y, Inokuchi T, Takahara M, Hiraoka S, Okada H. Ten Initial Cases of Peroral Endoscopic Myotomy for Treatment of Esophageal Motility Disorders at Okayama University Hospital. ACTA MEDICA OKAYAMA 2018; 72:99-104. [PMID: 29674757 DOI: 10.18926/amo/55849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Peroral endoscopic myotomy (POEM) for treatment of esophageal motility disorders has recently been reported to be highly effective and less invasive than other treatment. POEM was recently introduced in Okayama University Hospital under the supervision of a physician from a high-volume center. To verify the safety and efficacy of POEM during its introduction in our institution. We examined 10 cases in whom POEM was performed between January 2016 and April 2017. The patients included 7 men and 3 women, with a median age (range) of 49 years (17-74) and median symptom duration of 6 years (1-21). Seven patients had a straight esophagus, and the remaining 3 had a sigmoid esophagus. According to the Chicago classification, 6 patients were diagnosed with type I achalasia, 2 with type II achalasia, and 2 with distal esophagus spasm. Treatment outcomes and adverse events were evaluated. Treatment success was defined as a > 3 decrease in Eckardt score or a score of <3 at the time of discharge. The treatment success rate was 90%, with the average Eckardt score decreasing significantly, from 4.7 to 0.9 (p<0.05). No mucosal perforation, severe infection, mediastinitis, severe bleeding, or gastroesophageal reflux occurred intraoperatively or postoperatively. POEM was introduced to Okayama University Hospital, and the first 10 cases were accomplished safely and effectively under the supervision of an expert physician from a high-volume center.
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Endo S, Kato R, Sawada K, Hattori T. Two-Dimensional Array ATP/ADP Sensitive Image Sensor with a Uniform Distribution of Chemically Immobilized Apyrase. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2018. [DOI: 10.1246/bcsj.20170304] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Hashimoto T, Takahashi T, Kurokawa Y, Kato R, Wada N, Tanaka K, Miyazaki Y, Makino T, Yamasaki M, Nakajima K, Mori M, Doki Y. Clinical significance of surgical treatment for imatinib-resistant gastrointestinal stromal tumors. J Clin Oncol 2018. [DOI: 10.1200/jco.2018.36.4_suppl.189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
189 Background: The standard first-line treatment for unresectable metastasis or recurrence gastrointestinal stromal tumors (GIST) is imatinib mesylate(IM), a selective tyrosine kinase inhibitor. Although IM has markedly improved the prognosis of patients with advanced GIST, half of the patients experience tumor progression within two years because of resistance to IM. And IM-resistant GIST is basically treated by other kind of TKI, in addition, surgical treatment can be considered as one of treatment options. The aim of this study was to clarify the significance of surgical treatment for IM-resistant GIST in the era of second-line TKI treatment. Methods: We retrospectively analyzed consecutive 35 GIST patients who have developed IM-resistance between 2004 and 2015. We assessed clinicopathological characteristics, postoperative outcomes, imatinib-failure free survival(IFFS), and overall survival(OS) in patients who underwent surgical resection for the IM-resistant lesions. Results: The study enrolled 24 male patients and 11 female patients. The median [range] age was 61 [39-83] years. The primary sites were stomach / small intestine / duodenum: 16 / 14 / 5 cases and resection for primary sites was performed in 32 cases. The median [range] period of IM administration until resistance was 26 [2-119] months, and the resistant lesion sites were liver / peritoneum / primary lesion / local recurrence / bone: 17 / 18 / 2 / 1 / 1 cases (with duplication). Resection for resistant lesions was performed in 18 cases (51%), of which 13 cases (72%) underwent R0 / 1 resection. The postoperative complications ( > Clavien-Dindo classification Grade II) were observed in 3 patients: Biliary leakage, abdominal abscess, and diaphragmatic hernia. IM was resumed promptly after surgery in all 18 patients who underwent resection for IM-resistant lesions, and the median [range] period of IM administration was 22.2 [0.9-56] months. In 5 cases, multiple surgical treatments were performed and second-line TKI was administered in all except for two patients who have still been treated as IM. The median OS was 49 months. Conclusions: It was suggested that surgical treatment for IM-resistant GIST may be safe and effective for appropriate cases.
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Nishida T, Hayashi T, Inamoto T, Kato R, Ibuki N, Takahara K, Takai T, Yoshikawa Y, Uchimoto T, Saito K, Tanda N, Kouno J, Minami K, Uehara H, Hirano H, Nomi H, Okada Y, Azuma H. Dual Gas Treatment With Hydrogen and Carbon Monoxide Attenuates Oxidative Stress and Protects From Renal Ischemia-Reperfusion Injury. Transplant Proc 2018; 50:250-258. [DOI: 10.1016/j.transproceed.2017.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 10/26/2017] [Accepted: 12/05/2017] [Indexed: 01/14/2023]
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Yonesaka K, Kudoh K, Takamura S, Sakai H, Kato R, Haratani K, Takahama T, Tanaka K, Hayashi H, Kaneda H, Takeda M, Maenishi O, Yamato M, Miyazawa M, Nishio K, Nakagawa K. P2.07-021 A Checkpoint Molecule B7-H3 as a Novel Immune Therapy Target for Non-Small Cell Lung Cancer (NSCLC). J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.080] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Yamakawa H, Miyamoto T, Morimoto T, Terashige T, Yada H, Kida N, Suda M, Yamamoto HM, Kato R, Miyagawa K, Kanoda K, Okamoto H. Mott transition by an impulsive dielectric breakdown. NATURE MATERIALS 2017; 16:1100-1105. [PMID: 28825731 DOI: 10.1038/nmat4967] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2016] [Accepted: 07/11/2017] [Indexed: 06/07/2023]
Abstract
The transition of a Mott insulator to metal, the Mott transition, can occur via carrier doping by elemental substitution, and by photoirradiation, as observed in transition-metal compounds and in organic materials. Here, we show that the application of a strong electric field can induce a Mott transition by a new pathway, namely through impulsive dielectric breakdown. Irradiation of a terahertz electric-field pulse on an ET-based compound, κ-(ET) 2Cu[N(CN) 2]Br (ET:bis(ethylenedithio)tetrathiafulvalene), collapses the original Mott gap of ∼30 meV with a ∼0.1 ps time constant after doublon-holon pair productions by quantum tunnelling processes, as indicated by the nonlinear increase of Drude-like low-energy spectral weights. Additionally, we demonstrate metallization using this method is faster than that by a femtosecond laser-pulse irradiation and that the transition dynamics are more electronic and coherent. Thus, strong terahertz-pulse irradiation is an effective approach to achieve a purely electronic Mott transition, enhancing the understanding of its quantum nature.
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Iwasa T, Tsurutani J, Mizuno Y, Kojima Y, Takashima T, Matsunami N, Morimoto T, Yamamura J, Ohtani S, Tanabe Y, Watanabe S, Kato R, Tanino H, Tokunaga S, Abe H, Tsuyuki S, Hara F, Takano T, Komoike Y, Nakagawa K. Phase II trial of eribulin and S-1 combination therapy for advanced or recurrent breast cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx654.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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