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Takahara Y, Abe R, Sumito N, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Nishiki K, Nojiri M, Kato R, Shinomiya S, Oikawa T. Disease control in patients with non-small cell lung cancer using pemetrexed: Investigating the best treatment strategy. Thorac Cancer 2024; 15:987-993. [PMID: 38485287 PMCID: PMC11045330 DOI: 10.1111/1759-7714.15286] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2024] [Revised: 03/01/2024] [Accepted: 03/06/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Pemetrexed (PEM) is the primary chemotherapy for non-small cell lung cancer (NSCLC), showing potential for long-term disease stability in certain cases. However, studies examining disease control with PEM therapy are lacking. This study aimed to pinpoint clinical traits in patients with NSCLC responding well to PEM therapy, predict factors influencing disease control, and suggest optimal treatment approaches. METHODS A retrospective analysis of patients with NSCLC treated with PEM was performed to compare patients who achieved disease control after treatment with those who did not. RESULTS Of 73 patients, 56 (76.7%) achieved disease control with PEM therapy. In the disease control group, a significantly higher proportion of patients exhibited good performance status (PS) and received PEM doses without reduction after the second cycle. Multivariate analysis identified bevacizumab (Bev) noncompliance, PEM dose reduction, and thyroid transcription factor-1 (TTF-1) negativity as significant independent risk factors for disease progression during PEM therapy. Additionally, overall survival was significantly longer in the disease control group (p < 0.001). CONCLUSIONS Our findings indicated that maintaining the dose of PEM after the second treatment cycle in patients with NSCLC, along with concurrent use of Bev and the presence of TTF-1 positivity, could enhance disease control rates and extend survival.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Ryudai Abe
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Nagae Sumito
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
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Fukuta T, Kato R, Tanaka T, Yano TA. Fabrication of Mie-resonant silicon nanoparticles using laser annealing for surface-enhanced fluorescence spectroscopy. Microsyst Nanoeng 2024; 10:45. [PMID: 38560726 PMCID: PMC10978982 DOI: 10.1038/s41378-024-00666-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Revised: 12/18/2023] [Accepted: 01/14/2024] [Indexed: 04/04/2024]
Abstract
Silicon nanostructures with unique Mie resonances have garnered considerable attention in the field of nanophotonics. Here, we present a simple and efficient method for the fabrication of silicon (Si) nanoparticle substrates using continuous-wave (CW) laser annealing. The resulting silicon nanoparticles exhibit Mie resonances in the visible region, and their resonant wavelengths can be precisely controlled. Notably, laser-annealed silicon nanoparticle substrates show a 60-fold enhancement in fluorescence. This tunable and fluorescence-enhancing silicon nanoparticle platform has tremendous potential for highly sensitive fluorescence sensing and biomedical imaging applications.
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Affiliation(s)
- Tatsuya Fukuta
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima, 770-8506 Japan
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama, 351-0198 Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, 351-0109 Japan
| | - Ryo Kato
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima, 770-8506 Japan
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama, 351-0198 Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, 351-0109 Japan
| | - Takuo Tanaka
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima, 770-8506 Japan
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama, 351-0198 Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, 351-0109 Japan
| | - Taka-aki Yano
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima, 770-8506 Japan
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama, 351-0198 Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama, 351-0109 Japan
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Kawasaki Y, Nishiki K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Ishizaki T, Toga H, Mizuno S. Prognostic value of the serum creatinine/cystatin C ratio in patients with chronic obstructive pulmonary disease. Respir Investig 2024; 62:143-149. [PMID: 38134662 DOI: 10.1016/j.resinv.2023.11.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 09/29/2023] [Accepted: 11/22/2023] [Indexed: 12/24/2023]
Abstract
BACKGROUND Sarcopenia, characterized by skeletal muscle atrophy and physical inactivity, is a manifestation of chronic obstructive pulmonary disease (COPD) and is associated with a poor prognosis. The serum creatinine (Cr)/cystatin C (CysC) ratio has been proposed as a marker of sarcopenia, given its correlation with total skeletal muscle mass, and as a prognostic indicator in COPD. This study aimed to evaluate the usefulness of the serum Cr/CysC ratio as a prognostic determinant in these patients. METHODS A total of 124 outpatients with COPD were enrolled in this study. Their serum Cr and CysC levels were measured. Survival time analyses were conducted to compare mortality rates between the low and high serum Cr/CysC ratio groups. Multivariate analysis was performed to investigate the association between various factors. RESULTS Using a serum Cr/CysC cut-off value of 0.885, the mortality rate (per 1000 person-years) for overall mortality was significantly higher in the low serum Cr/CysC ratio group (69.2 versus 28.6; hazard ratio, 2.47; 95% confidence interval, 1.06-5.79; p < 0.05). Similarly, the mortality rate due to respiratory disease was also higher (37.8 versus 8.2; hazard ratio, 4.68; 95% confidence interval, 1.05-20.9; p < 0.05). Multivariate Cox proportional hazards analysis revealed that serum Cr/CysC was an independent risk factor for respiratory disease mortality, regardless of age and airflow limitations. CONCLUSIONS The serum Cr/CysC ratio could be a valuable clinical parameter for identifying sarcopenia and severe airflow obstruction. The study findings highlight the utility of this ratio as a prognostic predictor in patients with COPD.
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Affiliation(s)
- Yasutaka Kawasaki
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan.
| | - Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Takeshi Ishizaki
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Hirohisa Toga
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku-gun, Ishikawa, 920-0293, Japan
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Kato R, Maeda K, Yano TA, Tanaka K, Tanaka T. Label-free visualization of photosynthetic microbial biofilms using mid-infrared photothermal and autofluorescence imaging. Analyst 2023; 148:6241-6247. [PMID: 37947037 DOI: 10.1039/d3an01453c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2023]
Abstract
The formation of photosynthetic microbial biofilms comprising multispecies biomolecules, such as extracellular polymeric substances (EPSs), and microbial cells play pivotal roles in maintaining or stimulating their biological functions. Although there are numerous studies on photosynthetic microbial biofilms, the spatial distribution of EPS components that are vital for microbial biofilm formation, such as exopolysaccharides and proteins, is not well understood. Visualization of photosynthetic microbial biofilms requires label-free methods, because labelling EPSs results in structural changes or aggregation. Raman spectroscopy is useful for label-free visualization of biofilm constituents based on chemical contrast. However, interference resulting from the bright autofluorescence of photosynthetic molecules and the low detection efficiency of Raman scattering make visualization a challenge. Herein, we visualized photosynthetic microbial biofilms in a label-free manner using a super-resolution optical infrared absorption imaging technique, called mid-infrared photothermal (MIP) microscopy. By leveraging the advantages of MIP microscopy, such as its sub-micrometer spatial resolution, autofluorescence-free features, and high detection sensitivity, the distribution of cyanobacteria and their extracellular polysaccharides in the biofilm matrix were successfully visualized. This showed that cyanobacterial cells were aligned along acidic/sulfated polysaccharides in the extracellular environment. Furthermore, spectroscopic analyses elucidated that during formation of biofilms, sulfated polysaccharides initially form linear structures followed by entrapment of cyanobacterial cells. The present study provides the foundation for further studies on the formation, structure, and biological functions of microbial biofilms.
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Affiliation(s)
- Ryo Kato
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan.
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Kaisei Maeda
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Taka-Aki Yano
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan.
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Kan Tanaka
- Laboratory for Chemistry and Life Science, Institute of Innovative Research, Tokyo Institute of Technology, Midori-Ku, Yokohama, Kanagawa 226-8503, Japan.
| | - Takuo Tanaka
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan.
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
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Takahara Y, Abe R, Nagae S, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Nishiki K, Nojiri M, Kato R, Shinomiya S, Oikawa T. Investigation of response of patients with non-small cell lung cancer to docetaxel (plus ramucirumab) therapy in second-line treatment. Thorac Cancer 2023; 14:3549-3555. [PMID: 37964501 PMCID: PMC10733157 DOI: 10.1111/1759-7714.15161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2023] [Revised: 10/30/2023] [Accepted: 10/31/2023] [Indexed: 11/16/2023] Open
Abstract
BACKGROUND Several options for second-line therapy are available for patients with advanced non-small cell lung cancer (NSCLC); however, the optimal therapy remains unclear. Docetaxel (DTX) monotherapy and DTX plus ramucirumab (RAM) are the recommended second-line treatment options. However, the efficacy of these treatments remains unsatisfactory. The aim of this study was to identify the clinical characteristics of patients with NSCLC who respond to DTX or DTX + RAM and factors that predict response. METHODS Patients with NSCLC treated with DTX or DTX + RAM after second-line therapy were retrospectively analyzed. Patients were compared with those who responded or did not respond to the post-treatment efficacy assessment. RESULTS Of 53 patients, 12 (22.6%) had lung cancer that responded to DTX or DTX + RAM therapy (response group). Multivariate analysis identified the absence of immune checkpoint inhibitors (ICIs) in the immediate prior therapy and a reduced dose of DTX after the second cycle as significant independent risk factors predicting nonresponse to DTX and DTX + RAM therapy in patients with NSCLC. The overall survival was significantly longer in the response group compared to the nonresponse group (p = 0.016). CONCLUSIONS Our results suggest that DTX and DTX + RAM therapies immediately after treatment with ICI-containing regimens as well as continuation of DTX without dose reduction after the second cycle may increase the response rate and prolong survival in patients with NSCLC.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Ryudai Abe
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Sumito Nagae
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
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Imakiire A, Morimoto H, Suzuki H, Masuda T, Yoden E, Inoue A, Morioka H, Konaka T, Mori A, Shirasaka R, Kato R, Hirato T, Sonoda H, Minami K. Transferrin Receptor-Targeted Iduronate-2-sulfatase Penetrates the Blood-Retinal Barrier and Improves Retinopathy in Mucopolysaccharidosis II Mice. Mol Pharm 2023; 20:5901-5909. [PMID: 37860991 PMCID: PMC10630942 DOI: 10.1021/acs.molpharmaceut.3c00736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 10/10/2023] [Accepted: 10/11/2023] [Indexed: 10/21/2023]
Abstract
Mucopolysaccharidoses (MPSs) make up a group of lysosomal storage diseases characterized by the aberrant accumulation of glycosaminoglycans throughout the body. Patients with MPSs display various signs and symptoms, such as retinopathy, which is also observed in patients with MPS II. Unfortunately, retinal disorders in MPS II are resistant to conventional intravenous enzyme-replacement therapy because the blood-retinal barrier (BRB) impedes drug penetration. In this study, we show that a fusion protein, designated pabinafusp alfa, consisting of an antihuman transferrin receptor antibody and iduronate-2-sulfatase (IDS), crosses the BRB and reaches the retina in a murine model of MPS II. We found that retinal function, as assessed by electroretinography (ERG) in MPS II mice, deteriorated with age. Early intervention with repeated intravenous treatment of pabinafusp alfa decreased heparan sulfate deposition in the retina, optic nerve, and visual cortex, thus preserving or even improving the ERG response in MPS II mice. Histological analysis further revealed that pabinafusp alfa mitigated the loss of the photoreceptor layer observed in diseased mice. In contrast, recombinant nonfused IDS failed to reach the retina and hardly affected the retinal disease. These results support the hypothesis that transferrin receptor-targeted IDS can penetrate the BRB, thereby ameliorating retinal dysfunction in MPS II.
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Affiliation(s)
- Atsushi Imakiire
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Hideto Morimoto
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Hidehiko Suzuki
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Tomomi Masuda
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Eiji Yoden
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Asuka Inoue
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Hiroki Morioka
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Takashi Konaka
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Ayaka Mori
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Ryoji Shirasaka
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Ryo Kato
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Tohru Hirato
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Hiroyuki Sonoda
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
| | - Kohtaro Minami
- Research Division, JCR Pharmaceuticals, 1-5-4 Murotani, Nishi-ku, Kobe 651-2241, Japan
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Yamamoto S, Kanzaki H, Sakaguchi C, Mouri H, Tsuzuki T, Nasu J, Kobayashi S, Toyokawa T, Obayashi Y, Inoue M, Kato R, Matsubara M, Kita M, Okada H. Current prognostic factors of advanced gastric cancer patients treated with chemotherapy: real world data from a Japanese 12 institutions. Jpn J Clin Oncol 2023; 53:928-935. [PMID: 37519053 DOI: 10.1093/jjco/hyad091] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Accepted: 07/13/2023] [Indexed: 08/01/2023] Open
Abstract
BACKGROUND Understanding the prognostic factors of advanced gastric cancer before starting chemotherapy is important to determine personalized treatment strategies. However, the details of chemotherapy and the prognosis of advanced gastric cancer patients have changed with the time and environment. The aim of this study was to understand the current reality of chemotherapy and to estimate the prognostic factors of advanced gastric cancer patients before starting chemotherapy at multiple centers. This includes specialized cancer hospitals and community hospitals, with the latest data under the Japanese insurance system. METHODS We evaluated the clinical parameters and treatment details of 1025 patients who received systemic chemotherapy for unresectable advanced gastric cancer from 2012 to 2018 at 12 institutions in Japan. Prognostic factors were analyzed using the Cox proportional hazards regression model. RESULTS As of April 2021, 953 (93%) patients had died, while 72 (7%) patients survived. The median overall survival and progression-free survival of first-line chemotherapy was 11.8 months (95% confidence interval, 10.8-12.3 months) and 6.3 months (95% confidence interval, 5.9-6.9 months), respectively. Multivariate analysis revealed eight prognostic factors: age < 40 years, performance status ≥2, no gastrectomy, diffuse histological type, albumin <3.6, alkaline phosphatase ≥300, creatinine ≥1.0 and neutrophil-to-lymphocyte ratio > 3.0. Patients using trastuzumab showed better survival than patients without (16.1 months vs. 11.1 months; P = 0.0005). CONCLUSIONS We identified eight prognostic factors for patients with advanced gastric cancer undergoing Japanese standard chemotherapy. Our results will help clinicians develop treatment strategies for every patient.
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Affiliation(s)
- Shumpei Yamamoto
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Okayama, Japan
| | - Hiromitsu Kanzaki
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Okayama, Japan
| | - Chihiro Sakaguchi
- Department of Gastroenterology, National Hospital Organization Shikoku Cancer Center, Matsuyama, Japan
| | - Hirokazu Mouri
- Department of Gastroenterology and Hepatology, Kurashiki Central Hospital, Kurashiki, Japan
| | - Takao Tsuzuki
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Okayama, Japan
| | - Junichiro Nasu
- Department of Internal Medicine, Okayama Saiseikai General Hospital, Okayama, Japan
| | - Sayo Kobayashi
- Department of Internal Medicine, Fukuyama City Hospital, Fukuyama, Japan
| | - Tatsuya Toyokawa
- Department of Gastroenterology, National Hospital Organization Fukuyama Medical Center, Fukuyama, Japan
| | - Yuka Obayashi
- Department of Internal Medicine, Hiroshima City Hospital, Hiroshima, Japan
| | - Masafumi Inoue
- Department of Gastroenterology, Japanese Red Cross Okayama Hospital, Okayama, Japan
| | - Ryo Kato
- Department of Gastroenterology, Iwakuni Clinical Center, National Hospital Organization, Iwakuni, Japan
| | - Minoru Matsubara
- Department of Gastroenterology, Sumitomo Besshi Hospital, Niihama, Japan
| | - Masahide Kita
- Department of Endoscopy, Okayama University Hospital, Okayama, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry, and Pharmaceutical Sciences, Okayama, Japan
- Department of Internal Medicine, Japanese Red Cross Himeji Hospital, Okayama, Japan
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Takahara Y, Abe R, Sumito N, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Nishiki K, Nojiri M, Kato R, Shinomiya S, Oikawa T. Investigation of response factors for monotherapy with immune checkpoint inhibitors in non-small cell lung cancer patients with PD-L1 expression <50. Thorac Cancer 2023; 14:2754-2760. [PMID: 37536667 PMCID: PMC10518233 DOI: 10.1111/1759-7714.15059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2023] [Revised: 07/18/2023] [Accepted: 07/20/2023] [Indexed: 08/05/2023] Open
Abstract
BACKGROUND Immune checkpoint inhibitor (ICI) monotherapy is currently approved for the treatment of advanced non-small cell lung cancer (NSCLC) patients with programmed death ligand-1 (PD-L1) expression ≥50%. However, the efficacy of ICI monotherapy in patients with PD-L1 expression <50% has not yet been fully elucidated. The aim of this study was to identify the clinical characteristics of NSCLC patients with PD-L1 expression <50% who respond to single-agent ICIs and factors that predict response. METHODS Patients with advanced or recurrent NSCLC with a PD-L1 tumor proportion score (TPS) of 50% or less who received new monotherapy with an ICI between July 2012 and December 2022 were retrospectively analyzed. Patients with response were compared with those without response in the post-treatment response assessment. RESULTS Among the 37 patients, six (16.2%) NSCLC patients in the response group responded to ICI monotherapy and had a significantly lower body mass index (BMI) (p = 0.003). Significantly more patients in the response group developed immune-related adverse events (irAEs) than in the nonresponse group (p < 0.001). Multivariate analysis identified high BMI as a significant independent risk factor predicting nonresponse to ICI monotherapy in NSCLC patients with PD-L1 < 50%. CONCLUSIONS Among NSCLC patients with PD-L1 < 50%, those with a higher BMI were more likely to be nonresponders to ICI monotherapy. In addition, the group that responded to ICI monotherapy may have been at higher risk of developing irAEs, suggesting that careful follow-up is warranted.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Ryudai Abe
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Nagae Sumito
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityKahokuJapan
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Bleem A, Kato R, Kellermyer ZA, Katahira R, Miyamoto M, Niinuma K, Kamimura N, Masai E, Beckham GT. Multiplexed fitness profiling by RB-TnSeq elucidates pathways for lignin-related aromatic catabolism in Sphingobium sp. SYK-6. Cell Rep 2023; 42:112847. [PMID: 37515767 DOI: 10.1016/j.celrep.2023.112847] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 05/21/2023] [Accepted: 07/07/2023] [Indexed: 07/31/2023] Open
Abstract
Bioconversion of lignin-related aromatic compounds relies on robust catabolic pathways in microbes. Sphingobium sp. SYK-6 (SYK-6) is a well-characterized aromatic catabolic organism that has served as a model for microbial lignin conversion, and its utility as a biocatalyst could potentially be further improved by genome-wide metabolic analyses. To this end, we generate a randomly barcoded transposon insertion mutant (RB-TnSeq) library to study gene function in SYK-6. The library is enriched under dozens of enrichment conditions to quantify gene fitness. Several known aromatic catabolic pathways are confirmed, and RB-TnSeq affords additional detail on the genome-wide effects of each enrichment condition. Selected genes are further examined in SYK-6 or Pseudomonas putida KT2440, leading to the identification of new gene functions. The findings from this study further elucidate the metabolism of SYK-6, while also providing targets for future metabolic engineering in this organism or other hosts for the biological valorization of lignin.
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Affiliation(s)
- Alissa Bleem
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
| | - Ryo Kato
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Zoe A Kellermyer
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
| | - Rui Katahira
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA
| | - Masahiro Miyamoto
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Koh Niinuma
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Naofumi Kamimura
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan
| | - Eiji Masai
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata 940-2188, Japan.
| | - Gregg T Beckham
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, CO 80401, USA.
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Kato R, Maekawa K, Kobayashi S, Hishiyama S, Katahira R, Nambo M, Higuchi Y, Kuatsjah E, Beckham GT, Kamimura N, Masai E. Stereoinversion via Alcohol Dehydrogenases Enables Complete Catabolism of β-1-Type Lignin-Derived Aromatic Isomers. Appl Environ Microbiol 2023; 89:e0017123. [PMID: 37184397 PMCID: PMC10304671 DOI: 10.1128/aem.00171-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2023] [Accepted: 04/24/2023] [Indexed: 05/16/2023] Open
Abstract
Sphingobium sp. strain SYK-6 is an efficient aromatic catabolic bacterium that can consume all four stereoisomers of 1,2-diguaiacylpropane-1,3-diol (DGPD), which is a ring-opened β-1-type dimer. Recently, LdpA-mediated catabolism of erythro-DGPD was reported in SYK-6, but the catabolic pathway for threo-DGPD was as yet unknown. Here, we elucidated the catabolism of threo-DGPD, which proceeds through conversion to erythro-DGPD. When threo-DGPD was incubated with SYK-6, the Cα hydroxy groups of threo-DGPD (DGPD I and II) were initially oxidized to produce the Cα carbonyl form (DGPD-keto I and II). This initial oxidation step is catalyzed by Cα-dehydrogenases, which belong to the short-chain dehydrogenase/reductase (SDR) family and are involved in the catabolism of β-O-4-type dimers. Analysis of seven candidate genes revealed that NAD+-dependent LigD and LigL are mainly involved in the conversion of DGPD I and II, respectively. Next, we found that DGPD-keto I and II were reduced to erythro-DGPD (DGPD III and IV) in the presence of NADPH. Genes involved in this reduction were sought from Cα-dehydrogenase and ldpA-neighboring SDR genes. The gene products of SLG_12690 (ldpC) and SLG_12640 (ldpB) catalyzed the NADPH-dependent conversion of DGPD-keto I to DGPD III and DGPD-keto II to DGPD IV, respectively. Mutational analysis further indicated that ldpC and ldpB are predominantly involved in the reduction of DGPD-keto. Together, these results demonstrate that SYK-6 harbors a comprehensive catabolic enzyme system to utilize all four β-1-type stereoisomers through successive oxidation and reduction reactions of the Cα hydroxy group of threo-DGPD with a net stereoinversion using multiple dehydrogenases. IMPORTANCE In many catalytic depolymerization processes of lignin polymers, aryl-ether bonds are selectively cleaved, leaving carbon-carbon bonds between aromatic units intact, including dimers and oligomers with β-1 linkages. Therefore, elucidating the catabolic system of β-1-type lignin-derived compounds will aid in the establishment of biological funneling of heterologous lignin-derived aromatic compounds to value-added products. Here, we found that threo-DGPD was converted by successive stereoselective oxidation and reduction at the Cα position by multiple alcohol dehydrogenases to erythro-DGPD, which is further catabolized. This system is very similar to that developed to obtain enantiopure alcohols from racemic alcohols by artificially combining two enantiocomplementary alcohol dehydrogenases. The results presented here demonstrate that SYK-6 has evolved to catabolize all four stereoisomers of DGPD by incorporating this stereoinversion system into its native β-1-type dimer catabolic system.
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Affiliation(s)
- Ryo Kato
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Kodai Maekawa
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Shota Kobayashi
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Shojiro Hishiyama
- Department of Forest Resource Chemistry, Forestry and Forest Products Research Institute, Tsukuba, Ibaraki, Japan
| | - Rui Katahira
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Miki Nambo
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Yudai Higuchi
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Eugene Kuatsjah
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Gregg T. Beckham
- Renewable Resources and Enabling Sciences Center, National Renewable Energy Laboratory, Golden, Colorado, USA
| | - Naofumi Kamimura
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
| | - Eiji Masai
- Department of Materials Science and Bioengineering, Nagaoka University of Technology, Nagaoka, Niigata, Japan
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Takahara Y, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Mizuno S. Influencing factors of efficacy and long-term use of amrubicin in patients with small cell lung cancer. Thorac Cancer 2023; 14:1286-1293. [PMID: 36994539 PMCID: PMC10175028 DOI: 10.1111/1759-7714.14871] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 03/13/2023] [Accepted: 03/14/2023] [Indexed: 03/31/2023] Open
Abstract
BACKGROUND Amrubicin (AMR) has become the standard of care for post-relapse small cell lung cancer (SCLC). It has also been reported to achieve long-term disease control in patients with good treatment response. However, the optimal patient population for whom AMR is effective and the factors associated with long-term disease control are yet to be identified. The aim of the study was to identify the clinical characteristics and factors associated with long-term disease control in patients with recurrent SCLC who would benefit from AMR therapy. METHODS The clinical records of 33 patients diagnosed with recurrent SCLC and treated with AMR were retrospectively reviewed. Clinical information was compared between patients who achieved disease control (effective group) and who developed disease progression (noneffective group) on the first efficacy assessment after AMR and between patients who continued AMR for more than seven cycles (maintenance group) and those who terminated treatment after 1-6 cycles (discontinuation group). RESULTS The noneffective group included significantly more patients with AMR dose reductions after the second cycle (p = 0.006). AMR dose reduction was an independent risk factor for disease progression. The maintenance group had significantly lower pretreatment lactate dehydrogenase (LDH) levels than the discontinuation group (p = 0.046). A high LDH level was an independent risk factor for short AMR discontinuation. Overall survival was significantly longer in the effective group than in the noneffective group (p < 0.001). CONCLUSIONS In AMR therapy for patients with relapsed SCLC, continuation of AMR without dose reduction after the second cycle may contribute to disease control and prolonged survival.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Takuya Tanaka
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Yoko Ishige
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Ikuyo Shionoya
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Kouichi Yamamura
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Takashi Sakuma
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Keisuke Nakase
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
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Kato R, Yano TA, Tanaka T. Single-cell infrared vibrational analysis by optical trapping mid-infrared photothermal microscopy. Analyst 2023; 148:1285-1290. [PMID: 36811918 DOI: 10.1039/d2an01917e] [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: 02/19/2023]
Abstract
Single-cell analysis by means of vibrational spectroscopy combined with optical trapping is a reliable platform for unveiling cell-to-cell heterogeneities in vast populations. Although infrared (IR) vibrational spectroscopy provides rich molecular fingerprint information on biological samples in a label-free manner, its application with optical trapping has never been achieved due to weak gradient forces generated by the diffraction-limited focused IR beam and strong background of water absorption. Herein, we present single-cell IR vibrational analysis that incorporates mid-infrared photothermal (MIP) microscopy with optical trapping. Optically trapped single polymer particles and red blood cells (RBCs) in blood could be chemically identified owing to their IR vibrational fingerprints. This single-cell IR vibrational analysis further allowed us to probe the chemical heterogeneities of RBCs originating from the variation in the intracellular characteristics. Our demonstration paves the way for the IR vibrational analysis of single cells and chemical characterization in various fields.
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Affiliation(s)
- Ryo Kato
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan. .,Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan. .,Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Taka-Aki Yano
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan. .,Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan. .,Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
| | - Takuo Tanaka
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-0856, Japan. .,Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Wako, Saitama 351-0198, Japan. .,Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Wako, Saitama 351-0198, Japan
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LEE M, Suzuki H, Kato R, Fukao Y, Nakayama M, Kano T, Makita Y, Suzuki Y. WCN23-0093 TLR9/TLR7 ARE STRONG CANDIDATES FOR DISEASE-SPECIFIC THERAPEUTIC TARGETS IN IgA NEPHROPATHY. Kidney Int Rep 2023. [DOI: 10.1016/j.ekir.2023.02.464] [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: 03/22/2023] Open
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14
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Watanabe M, Okamoto M, Komichi S, Huang H, Matsumoto S, Moriyama K, Ohshima J, Abe S, Morita M, Ali M, Takebe K, Kozaki I, Fujimoto A, Kanie K, Kato R, Uto K, Ebara M, Yamawaki-Ogata A, Narita Y, Takahashi Y, Hayashi M. Novel Functional Peptide for Next-Generation Vital Pulp Therapy. J Dent Res 2023; 102:322-330. [PMID: 36415061 PMCID: PMC9989233 DOI: 10.1177/00220345221135766] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Although vital pulp therapy should be performed by promoting the wound-healing capacity of dental pulp, existing pulp-capping materials were not developed with a focus on the pulpal repair process. In previous investigations of wound healing in dental pulp, we found that organic dentin matrix components (DMCs) were degraded by matrix metalloproteinase-20, and DMC degradation products containing protein S100A7 (S100A7) and protein S100A8 (S100A8) promoted the pulpal wound-healing process. However, the direct use of recombinant proteins as pulp-capping materials may cause clinical problems or lead to high medical costs. Thus, we hypothesized that functional peptides derived from recombinant proteins could solve the problems associated with direct use of such proteins. In this study, we identified functional peptides derived from the protein S100 family and investigated their effects on dental pulp tissue. We first performed amino acid sequence alignments of protein S100 family members from several mammalian sources, then identified candidate peptides. Next, we used a peptide array method that involved human dental pulp stem cells (hDPSCs) to evaluate the mineralization-inducing ability of each peptide. Our results supported the selection of 4 candidate functional peptides derived from proteins S100A8 and S100A9. Direct pulp-capping experiments in a rat model demonstrated that 1 S100A8-derived peptide induced greater tertiary dentin formation compared with the other peptides. To investigate the mechanism underlying this induction effect, we performed liquid chromatography-tandem mass spectrometry analysis using hDPSCs and the S100A8-derived peptide; the results suggested that this peptide promotes tertiary dentin formation by inhibiting inflammatory responses. In addition, this peptide was located in a hairpin region on the surface of S100A8 and could function by direct interaction with other molecules. In summary, this study demonstrated that a S100A8-derived functional peptide promoted wound healing in dental pulp; our findings provide insights for the development of next-generation biological vital pulp therapies.
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Affiliation(s)
- M Watanabe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Okamoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Komichi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - H Huang
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Matsumoto
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - K Moriyama
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - J Ohshima
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - S Abe
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Morita
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Ali
- Department of Restorative Dentistry, Faculty of Dentistry, University of Khartoum, Khartoum, Sudan
| | - K Takebe
- Department of Oral and Maxillofacial Surgery II, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - I Kozaki
- Department of Biomolecular Engineering, Graduate School of Engineering, Nagoya University, Aichi, Japan
| | - A Fujimoto
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan
| | - K Kanie
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan.,Department of Biotechnology and Chemistry, Faculty of Engineering, Kindai University, Hiroshima, Japan
| | - R Kato
- Department of Basic Medicinal Sciences, Graduate School of Pharmaceutical Sciences, Nagoya University, Aichi, Japan
| | - K Uto
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - M Ebara
- International Center for Materials Nanoarchitectonics (WPI-MANA), National Institute for Materials Science (NIMS), Ibaraki, Japan
| | - A Yamawaki-Ogata
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Narita
- Department of Cardiac Surgery, Nagoya University Graduate School of Medicine, Aichi, Japan
| | - Y Takahashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
| | - M Hayashi
- Department of Restorative Dentistry and Endodontology, Osaka University Graduate School of Dentistry, Osaka, Japan
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Tamura D, Abe M, Ikarashi D, Kato R, Kato Y, Maekawa S, Kanehira M, Takata R, Suzuki Y, Nakagawa H, Nishizuka S, Obara W. Detection of individualized mutations and monitoring of postoperative recurrence using circulating tumor DNA in patients with upper tract urothelial carcinoma. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00965-x] [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: 02/12/2023]
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16
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Maekawa S, Johnson T, Fujita M, Takata R, Ikarashi D, Matsuura T, Kato R, Kanehira M, Sugimura J, Abe T, Nakagawa H, Obara W. Genomic features of renal cell carcinoma developed during end-stage renal disease and dialysis. Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)01082-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/12/2023]
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17
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Takahara Y, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Mizuno S. Early recurrence factors in patients with stage III non-small cell lung cancer treated with concurrent chemoradiotherapy. Thorac Cancer 2022; 13:3451-3458. [PMID: 36281714 PMCID: PMC9750816 DOI: 10.1111/1759-7714.14704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 09/01/2022] [Revised: 10/03/2022] [Accepted: 10/06/2022] [Indexed: 01/09/2023] Open
Abstract
BACKGROUND The clinical characteristics and risk factors for cancer recurrence have not been well evaluated regarding early recurrence in patients with unresectable locally advanced non-small cell lung cancer (LA-NSCLC) who receive concurrent chemoradiotherapy (CRT). The aim of this study was to determine the clinical characteristics and risk factors of patients with stage III unresectable LA-NSCLC treated with CRT who developed early recurrence. METHODS We retrospectively reviewed the clinical records of 46 patients diagnosed with stage III unresectable LA-NSCLC treated with CRT at our center between July 2012 and July 2021. A tumor proportion score (TPS) < 50% was defined as "low expression" and a TPS > 50% was defined as "high expression." RESULTS A total of 17 (37.0%) patients had a confirmed recurrence within 1 year of treatment. More patients had a lower body mass index in the early recurrence group than in the later recurrence group (p = 0.038). A higher number of patients in the late recurrence group underwent surgery after CRT (p = 0.036). Patients with a higher TPS were more likely to experience late recurrence than early recurrence (p = 0.001), whereas more patients with stage N3 disease were in the early recurrence group (p = 0.011). Multivariate analysis identified lower TPS expression as an independent risk factor for early recurrence after CRT. Overall survival was prolonged in the late recurrence group (p < 0.001). CONCLUSIONS A lower TPS may be a predictor of early recurrence after CRT in patients with LA-NSCLC. These patients should be closely monitored for post-treatment recurrence.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Takashi Sakuma
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Keisuke Nakase
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
| | - Shiro Mizuno
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunJapan
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18
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Takahara Y, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Mizuno S. Differential response in patients with large cell neuroendocrine carcinoma of the lung to initial therapy: A case series. Cancer Rep (Hoboken) 2022; 6:e1754. [PMID: 36366956 PMCID: PMC9875627 DOI: 10.1002/cnr2.1754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2022] [Revised: 10/22/2022] [Accepted: 10/30/2022] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Large cell neuroendocrine tumors of the lung (LCNEC) are rare. Chemotherapy with the small cell lung carcinoma (SCLC) regimen is the most appropriate treatment for LCNEC. However, there is evidence that the non-small cell lung cancer regimen is also effective in some reported cases. Due to the differences in response to LCNEC treatment, a standard of care for LCNEC has not been established. CASES The clinical records of nine patients with LCNEC who were treated with anticancer drugs based on an SCLC regimen from March 2016 to March 2022 were retrospectively reviewed. The patients who responded to treatment after one cycle of systemic chemotherapy were compared to those who did not respond. All patients in the responder group had a performance status (PS) of 0 or 1. However, 5 of the 6 patients in the non-responder group had a PS of 2 or 3, indicating that many patients were in poor general condition. Although patients with multiple metastases to more than one organ prior to treatment were not identified in the responder group, five of these patients were in the non-responder group. In the non-responder group, all patients discontinued treatment due to deterioration of general condition during first-line treatment. Thus, none of them were able to start the second-line treatment. CONCLUSION The results of this study may suggest that early diagnosis and initiation of treatment before multiple organ metastasis development and PS decline may have clinical implications that could lead to improved treatment response in patients with LCNEC.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Takashi Sakuma
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Keisuke Nakase
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
| | - Shiro Mizuno
- Department of Respiratory MedicineKanazawa Medical UniversityKahoku‐gunIshikawaJapan
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Umakoshi T, Kawashima K, Moriyama T, Kato R, Verma P. Tip-enhanced Raman spectroscopy with amplitude-controlled tapping-mode AFM. Sci Rep 2022; 12:12776. [PMID: 35896604 PMCID: PMC9329313 DOI: 10.1038/s41598-022-17170-7] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 07/21/2022] [Indexed: 11/24/2022] Open
Abstract
Tip-enhanced Raman spectroscopy (TERS) is a powerful tool for analyzing chemical compositions at the nanoscale owing to near-field light localized at a metallic tip. In TERS, atomic force microscopy (AFM) is commonly used for tip position control. AFM is often controlled under the contact mode for TERS, whereas the tapping mode, which is another major operation mode, has not often been employed despite several advantages, such as low sample damage. One of the reasons is the low TERS signal intensity because the tip is mostly away from the sample during the tapping motion. In this study, we quantitatively investigated the effect of the tapping amplitude on the TERS signal. We numerically evaluated the dependence of the TERS signal on tapping amplitude. We found that the tapping amplitude had a significant effect on the TERS signal, and an acceptable level of TERS signal was obtained by reducing the amplitude to a few nanometers. We further demonstrated amplitude-controlled tapping-mode TERS measurement. We observed a strong dependence of the TERS intensity on the tapping amplitude, which is in agreement with our numerical calculations. This practical but essential study encourages the use of the tapping mode for further advancing TERS and related optical techniques.
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Affiliation(s)
- Takayuki Umakoshi
- Department of Applied Physics, Osaka University, Suita, Osaka, 565-0871, Japan. .,Institute for Advanced Co-creation Studies, Osaka University, Suita, Osaka, 565-0871, Japan. .,PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama, 332-0012, Japan.
| | - Koji Kawashima
- Department of Applied Physics, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Toki Moriyama
- Department of Applied Physics, Osaka University, Suita, Osaka, 565-0871, Japan
| | - Ryo Kato
- Institute of Post-LED Photonics, Tokushima University, Tokushima, Tokushima, 770-8506, Japan
| | - Prabhat Verma
- Department of Applied Physics, Osaka University, Suita, Osaka, 565-0871, Japan
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Yamamura K, Nojiri M, Nishiki K, Kato R, Shinomiya S, Takahara Y, Oikawa T, Ishizaki T, Toga H, Mizuno S. Serum Derivatives of Reactive Oxygen Metabolites are Associated with Severity of Chronic Obstructive Pulmonary Disease and Affected by a p53 Gene Polymorphism. Int J Chron Obstruct Pulmon Dis 2022; 17:1589-1600. [PMID: 35854898 PMCID: PMC9289177 DOI: 10.2147/copd.s366792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 03/17/2022] [Accepted: 07/04/2022] [Indexed: 11/23/2022] Open
Abstract
Purpose Oxidative stress is known to activate tumor suppressor p53, which inhibits cell cycle progression and induces apoptosis. Levels of p53 in lung tissues from patients with chronic obstructive pulmonary disease (COPD) are increased compared with levels in nonsmokers or smokers without emphysema. A polymorphism in p53 codon 72 (rs1042522) is associated with emphysematous changes in patients with COPD. However, whether oxidative stress in the serum is associated with the p53 polymorphism and disease severity in COPD patients is unclear. Patients and Methods A total of 251 patients with a history of smoking more than 10 pack-years were enrolled in this study, and serum levels of derivatives of reactive oxygen metabolites (d-ROMs), biological antioxidant potential (BAP), and d-ROMs/BAP ratio (oxidative stress index; OSI) were measured. The percent low-attenuation area (LAA%) and cross-sectional area of the erector spinae muscles (ESMCSA) at the Th12 level were calculated from chest high-resolution computed tomography images. p53 codon 72 C/G genotyping was performed using polymerase chain reaction-restriction fragment length polymorphism analysis. Results In patients carrying the p53 GG genotype, LAA% was significantly higher than in those carrying the CC genotype. d-ROM levels and OSI were associated with COPD severity and correlated with airflow limitation and markers of muscle atrophy (ESMCSA and creatinine/cystatin C ratio). Associations between markers of oxidative stress and COPD severity were observed primarily in patients carrying the p53 codon 72 GG genotype. Conclusion Susceptibility to pulmonary emphysema and responses to oxidative stress may be affected by the p53 gene polymorphism.
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Affiliation(s)
- Koichi Yamamura
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Yutaka Takahara
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Takeshi Ishizaki
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Hirohisa Toga
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
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Kato R, Moriyama T, Umakoshi T, Yano TA, Verma P. Ultrastable tip-enhanced hyperspectral optical nanoimaging for defect analysis of large-sized WS 2 layers. Sci Adv 2022; 8:eabo4021. [PMID: 35857514 PMCID: PMC9286508 DOI: 10.1126/sciadv.abo4021] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2022] [Accepted: 06/03/2022] [Indexed: 05/25/2023]
Abstract
Optical nanoimaging techniques, such as tip-enhanced Raman spectroscopy (TERS), are nowadays indispensable for chemical and optical characterization in the entire field of nanotechnology and have been extensively used for various applications, such as visualization of nanoscale defects in two-dimensional (2D) materials. However, it is still challenging to investigate micrometer-sized sample with nanoscale spatial resolution because of severe limitation of measurement time due to drift of the experimental system. Here, we achieved long-duration TERS imaging of a micrometer-sized WS2 sample for 6 hours in a reproducible manner. Our ultrastable TERS system enabled to reveal the defect density on the surface of tungsten disulfide layers in large area equivalent to the device scale. It also helped us to detect rare defect-related optical signals from the sample. The present study paves ways to evaluate nanoscale defects of 2D materials in large area and to unveil remarkable optical and chemical properties of large-sized nanostructured materials.
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Affiliation(s)
- Ryo Kato
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima, Tokushima, Tokushima 770-8506, Japan
| | - Toki Moriyama
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
| | - Takayuki Umakoshi
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
- Institute for Advanced Co-Creation Studies, Osaka University, Suita, Osaka 565-0871, Japan
- PRESTO, Japan Science and Technology Agency, Kawaguchi, Saitama 332-0012, Japan
| | - Taka-aki Yano
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima, Tokushima, Tokushima 770-8506, Japan
| | - Prabhat Verma
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
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Takahashi K, Tomoda Y, Kadena S, Kanbayashi T, Kobayashi S, Kato R. Guillain-Barré syndrome after BNT162b2 (Pfizer-BioNTec) vaccination. QJM 2022; 115:331-333. [PMID: 35426946 DOI: 10.1093/qjmed/hcac102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 04/09/2022] [Indexed: 12/21/2022] Open
Affiliation(s)
- K Takahashi
- From the Department of General Medicine, Itabashi Chuo Medical Center, 2-12-7 Azusawa, Itabashi-ku, Tokyo 174-0051, Japan
| | - Y Tomoda
- From the Department of General Medicine, Itabashi Chuo Medical Center, 2-12-7 Azusawa, Itabashi-ku, Tokyo 174-0051, Japan
| | - S Kadena
- From the Department of General Medicine, Itabashi Chuo Medical Center, 2-12-7 Azusawa, Itabashi-ku, Tokyo 174-0051, Japan
| | - T Kanbayashi
- Department of Neurology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8606, Japan
| | - S Kobayashi
- Department of Neurology, Teikyo University School of Medicine, 2-11-1 Kaga, Itabashi-ku, Tokyo, 173-8606, Japan
| | - R Kato
- From the Department of General Medicine, Itabashi Chuo Medical Center, 2-12-7 Azusawa, Itabashi-ku, Tokyo 174-0051, Japan
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23
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Kato R, Ito K, Sue K, Okumura H, Hattori T. Optical Sensing of Phenylurea Pesticides by Hydrogen Bonding with Carboxylate Dyess. ANAL LETT 2022. [DOI: 10.1080/00032719.2022.2059494] [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: 11/01/2022]
Affiliation(s)
- Ryo Kato
- Cooperative Research Facility Center, Toyohashi University of Technology, Toyohashi, Japan
| | - Kouta Ito
- Department of Electrical & Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, Japan
| | - Koushiro Sue
- Department of Electrical & Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, Japan
| | - Hiroki Okumura
- Department of Materials Science, Toyohashi University of Technology, Toyohashi, Japan
| | - Toshiaki Hattori
- Department of Electrical & Electronic Information Engineering, Toyohashi University of Technology, Toyohashi, Japan
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24
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Kato R, Takenaka R, Matsumoto T. The Phenomenology of Anti-NMDA Receptor Encephalitis: A Comparison with “Primary Mental Confusion” in Late 19th Century French Psychiatry. FRONT BIOSCI-LANDMRK 2022; 27:116. [DOI: 10.31083/j.fbl2704116] [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] [Received: 12/28/2021] [Revised: 02/06/2022] [Accepted: 02/18/2022] [Indexed: 11/06/2022]
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25
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Kato R, Uesugi M, Komatsu Y, Okamoto F, Tanaka T, Kitawaki F, Yano TA. Highly Stable Polymer Coating on Silver Nanoparticles for Efficient Plasmonic Enhancement of Fluorescence. ACS Omega 2022; 7:4286-4292. [PMID: 35155921 PMCID: PMC8829869 DOI: 10.1021/acsomega.1c06010] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 12/28/2021] [Indexed: 05/05/2023]
Abstract
Surface coating of plasmonic nanoparticles is of huge importance to suppress fluorescence quenching in plasmon-enhanced fluorescence sensing. Herein, a one-pot method for synthesizing polymer-coated silver nanoparticles was developed using a functional polymer conjugated with disulfide-containing anchoring groups. The disulfides played a crucial role in covalently bonding polymers to the surface of the silver nanoparticles. The covalent bond enabled the polymer layer to form a long-term stable coating on the silver nanoparticles. The polymer layer coated was adequately thin to efficiently achieve plasmonic enhancement of fluorescence and also thick enough to effectively suppress quenching of fluorescence, achieving a huge net enhancement of fluorescence. The polymer-coated plasmonic nanoparticles are a promising platform for demonstrating highly sensitive biosensing for medical diagnostics.
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Affiliation(s)
- Ryo Kato
- Institute
of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima 770-8506, Japan
| | | | - Yoshie Komatsu
- PHC
Corporation, 2131-1 Minamigata, Toon, Ehime 791-0395, Japan
| | | | - Takuo Tanaka
- Institute
of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima 770-8506, Japan
| | | | - Taka-aki Yano
- Institute
of Post-LED Photonics, Tokushima University, 2-1 Minami-Josanjima, Tokushima 770-8506, Japan
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26
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Kato R, Ijiri Y. Regorafenib and reactive metabolite of sunitinib activate inflammasomes: Implications for multi tyrosine kinase inhibitor-Iiduced immune related adverse events. Pharmazie 2022; 77:54-58. [PMID: 35209964 DOI: 10.1691/ph.2022.1955] [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: 06/14/2023]
Abstract
Multi-targeted tyrosine kinase inhibitors have been developed for the treatment of various cancers, but they are associated with a significant incidence of idiosyncratic drug reactions (IDRs). There is compelling evidence that most IDRs are immune mediated. Activation of inflammasomes is often one of the early steps in the initiation of an immune response. This activation could involve the pharmacological effect of the drug, or it could involve the release of damage associated molecular patters (DAMPs) caused by a reactive metabolite. We tested whether sunitinib, regorafenib, lenvatinib and cabozantinib can directly activate inflammasomes in differentiated THP-1 cells. We found that regorafenib activated the inflammasome of differentiated THP-1 cells directly. We also found that the supernatant from the incubation of sunitinib with FLC-4 cells, which have a high capacity to metabolize drugs, led to activate the inflammasome of differentiated THP-1 cells. In the supernatant of FLC-4 cells with sunitinib, the heat shock protein (HSP) 90 was significantly increased. Sunitinib is known to be oxidized to generate a reactive, potentially toxic quinone imine. These results support the hypothesis that the reactive metabolite of sunitinib can cause the release of DAMPs from hepatocytes, which leads to activation of inflammasomes. Inflammasome activation may be an important step in the activation of the immune system by regorafenib and sunitinib, which in some patients, can cause IDRs.
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Affiliation(s)
- R Kato
- Department of Cardiovascular Pharmacotherapy and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan;,
| | - Y Ijiri
- Department of Cardiovascular Pharmacotherapy and Toxicology, Faculty of Pharmacy, Osaka Medical and Pharmaceutical University, Osaka, Japan
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27
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Fujiyama S, Maebashi H, Tajima N, Tsumuraya T, Cui HB, Ogata M, Kato R. Large Diamagnetism and Electromagnetic Duality in Two-Dimensional Dirac Electron System. Phys Rev Lett 2022; 128:027201. [PMID: 35089746 DOI: 10.1103/physrevlett.128.027201] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2021] [Accepted: 12/21/2021] [Indexed: 05/05/2023]
Abstract
A Dirac electron system in solids mimics relativistic quantum physics that is compatible with Maxwell's equations, with which we anticipate unified electromagnetic responses. We find a large orbital diamagnetism only along the interplane direction and a nearly temperature-independent electrical conductivity of the order of e^{2}/h per plane for the new 2D Dirac organic conductor, α-(BETS)_{2}I_{3}, where BETS is bis(ethylenedithio)tetraselenafulvalene. Unlike conventional electrons in solids whose nonrelativistic effects bifurcate electric and magnetic responses, the observed orbital diamagnetism scales with the electrical conductivity in a wide temperature range. This demonstrates that an electromagnetic duality that is valid only within the relativistic framework is revived in solids.
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Affiliation(s)
- S Fujiyama
- RIKEN, Condensed Molecular Materials Laboratory, Wako 351-0198, Japan
| | - H Maebashi
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
| | - N Tajima
- Department of Physics, Toho University, Funabashi 274-8510, Japan
| | - T Tsumuraya
- POIE, Kumamoto University, Kumamoto 860-8555, Japan
| | - H-B Cui
- RIKEN, Condensed Molecular Materials Laboratory, Wako 351-0198, Japan
| | - M Ogata
- Department of Physics, University of Tokyo, Tokyo 113-0033, Japan
- Trans-scale Quantum Science Institute, University of Tokyo, Bunkyo-ku, Tokyo 113-0033, Japan
| | - R Kato
- RIKEN, Condensed Molecular Materials Laboratory, Wako 351-0198, Japan
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28
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Nishiki K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Ishizaki T, Toga H, Mizuno S. Serum Creatinine/Cystatin C Ratio Associated with Cross-Sectional Area of Erector Spinae Muscles and Pulmonary Function in Patients with Chronic Obstructive Pulmonary Disease. Int J Chron Obstruct Pulmon Dis 2022; 16:3513-3524. [PMID: 34992359 PMCID: PMC8713710 DOI: 10.2147/copd.s339243] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [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: 09/14/2021] [Accepted: 12/06/2021] [Indexed: 12/27/2022] Open
Abstract
Purpose Muscle atrophy is a major clinical feature of chronic obstructive pulmonary disease (COPD) and is considered a predictor of mortality in COPD patients. Recently, the cross-sectional area (CSA) of the erector spinae muscles measured by chest computed tomography (CT) scans (ESMCSA) has been reported as a clinical parameter reflecting disease severity and future prognosis in patients with COPD. In addition, the serum creatinine (Cr)/cystatin C (CysC) ratio has been considered a quantitative marker of residual muscle mass, because serum Cr levels are affected by muscle mass, and correction by CysC counteracts the effect of renal function on serum Cr levels. The purpose of this study was to assess whether the serum Cr level corrected by serum CysC can be used as a predictive marker of pulmonary function and disease severity in patients with COPD. Patients and Methods A total of 99 patients without COPD and 201 patients with COPD, with a smoking history of more than 10 pack-years were enrolled in this study, and serum Cr and CysC levels were measured. On chest high-resolution CT images, %low attenuation area (LAA%) (≤960 Hounsfield units (HU)) and ESMCSA at the Th12 level were identified. Results There was a significant correlation between the ESMCSA and the Cr/CysC ratio. The Cr/CysC ratio was significantly associated with forced vital capacity (FVC) and forced expiratory volume in 1 second (FEV1) values, especially in former smokers. Conclusion The serum Cr/CysC ratio could be a convenient substitute for the measurement of muscle atrophy and pulmonary function testing in patients with COPD.
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Affiliation(s)
- Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Takeshi Ishizaki
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Hirohisa Toga
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, Ishikawa, Japan
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29
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Takahara Y, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Fujimoto Y, Oikawa T, Mizuno S. Efficacy and predictors of rechallenge with immune checkpoint inhibitors in non-small cell lung cancer. Thorac Cancer 2022; 13:624-630. [PMID: 34989146 PMCID: PMC8841726 DOI: 10.1111/1759-7714.14309] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [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: 11/24/2021] [Revised: 12/22/2021] [Accepted: 12/23/2021] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND The efficacy of rechallenge with immune checkpoint inhibitors (ICIs) in non-small cell lung cancer (NSCLC) patients has not yet been fully clarified. This study aimed to identify the clinical characteristics of patients with NSCLC who benefited from rechallenge with ICIs. METHODS We retrospectively reviewed the clinical records of 24 patients who were diagnosed with NSCLC and rechallenged with ICIs between August 2016 and July 2021. RESULTS Of the 24 patients included in the study, 11 were in the responder group (45.8%) and 13 in the nonresponder group (54.2%). The number of patients who used a different ICI from that used in the initial therapy was significantly higher in the responder group than in the nonresponder group (p = 0.006). Multivariate analysis identified lung metastasis and female sex as significant independent risk factors for nonresponse to rechallenge with ICIs. Compared to the nonresponder group, the duration of treatment after rechallenge with ICIs was significantly longer in the responder group (p = 0.016), and there was a trend toward longer overall survival (p = 0.059). CONCLUSIONS Patients with lung cancer who were rechallenged with ICIs and without progressive disease after initial ICI therapy were able to continue ICI therapy for a longer period of time. This may be associated with longer survival. Patients with lung metastases and female patients are more likely to be nonresponsive to rechallenge with ICIs. Administration of a different type of ICI from that used in the initial ICI therapy may result in disease control.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Takuya Tanaka
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Yoko Ishige
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Ikuyo Shionoya
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Kouichi Yamamura
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Takashi Sakuma
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Keisuke Nakase
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Yuki Fujimoto
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, Kahoku-gun, Ishikawa, Japan
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Mizuno S, Wakabayashi H, Yamakawa M, Wada F, Kato R, Furiya Y, Nishioka S, Momosaki R. Sarcopenia Is Associated with Fecal Incontinence in Patients with Dysphagia: Implication for Anal Sarcopenia. J Nutr Health Aging 2022; 26:84-88. [PMID: 35067708 DOI: 10.1007/s12603-021-1711-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
OBJECTIVES To examine the relationship between sarcopenia and fecal incontinence in patients with dysphagia. DESIGN Cross-sectional study using the Japanese sarcopenic dysphagia database. SETTING 19 hospitals including 9 acute care hospitals, 8 rehabilitation hospitals, 2 long-term care hospitals, and 1 home visit rehabilitation center. PARTICIPANTS 460 dysphagic patients, aged 20 years and older. MEASUREMENTS Sarcopenia was diagnosed by the 2019 criteria of the Asian Working Group for Sarcopenia. Fecal incontinence was assessed by health care professionals at baseline according to the definition of the Japanese Practice Guidelines for Fecal Incontinence. We examined whether there was a significant difference between the rate of fecal incontinence in patients with/without sarcopenia. Age, sex, type of dwelling, Barthel index, Charlson comorbidity index (CCI), calf circumference, handgrip strength, body mass index, malnourishment, C-reactive protein level, serum albumin level, and delivery of enteral nutrition by nasogastric and/or gastrostomy tube were measured. To examine the relationship between sarcopenia and fecal incontinence, logistic regression analysis was performed with adjustments for age, sex, sarcopenia, CCI, enteral nutrition, and dwelling. RESULTS The mean age of patients was 81 ± 10 years. Of the 460 study patients, 404 (88%) patients had sarcopenia and 104 had fecal incontinence (23%). The rate of fecal incontinence was higher in the sarcopenia group than the non-sarcopenia group (25% vs. 7%, P = 0.003). Logistic regression analysis showed that sarcopenia was independently associated with fecal incontinence (odds ratio: 3.114, 95% confidence interval: 1.045, 9.282). CONCLUSION The prevalence of fecal incontinence was 23% in patients with dysphagia. Sarcopenia was independently associated with fecal incontinence, which suggests the presence of anal sarcopenia. Defecation control should be assessed in patients with sarcopenia.
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Affiliation(s)
- S Mizuno
- Hidetaka Wakabayashi, MD, PhD, Department of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, Japan. Code; 162-0054, Tel: +81-3-3353-8111, Fax: +81-3-5269-7639, E-mail:
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Murata R, Tomoda Y, Matsumoto Y, Kato R. The re-emergence of an ancient disease: scurvy. QJM 2021; 114:750-751. [PMID: 34247251 DOI: 10.1093/qjmed/hcab189] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Affiliation(s)
- R Murata
- Division of General Medicine, Itabashi Chuo Medical Center, Azusawa 2-12-7, Itabashi-ku, Tokyo, 174-0051, Japan
| | - Y Tomoda
- Division of General Medicine, Itabashi Chuo Medical Center, Azusawa 2-12-7, Itabashi-ku, Tokyo, 174-0051, Japan
| | - Y Matsumoto
- Division of General Medicine, Itabashi Chuo Medical Center, Azusawa 2-12-7, Itabashi-ku, Tokyo, 174-0051, Japan
| | - R Kato
- Division of General Medicine, Itabashi Chuo Medical Center, Azusawa 2-12-7, Itabashi-ku, Tokyo, 174-0051, Japan
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Takahara Y, Tanaka T, Ishige Y, Shionoya I, Yamamura K, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Fujimoto Y, Oikawa T, Mizuno S. Risk factors for acute exacerbation in lung cancer complicated by interstitial lung disease with slight reticular shadows. Thorac Cancer 2021; 12:2758-2766. [PMID: 34409749 PMCID: PMC8520810 DOI: 10.1111/1759-7714.14121] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/05/2021] [Accepted: 08/06/2021] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND The risk of cancer treatment-related acute exacerbation (AE) in patients with lung cancer and mild interstitial lung disease (ILD) on imaging, classified as indeterminate for usual interstitial pneumonia (UIP), has not previously been clarified. METHODS We retrospectively reviewed the clinical records of 27 patients with lung cancer and ILD who were diagnosed and treated from April 2016 to March 2021. RESULTS Among the 27 patients, 21 were classified as indeterminate for UIP and six as UIP/probable UIP; furthermore, 10 (46.6%) and three (50%) patients from each group, respectively, developed treatment-related AEs. No significant difference was observed regarding the incidence of AEs between the two groups. However, significantly more patients in the AE group received immune checkpoint inhibitors (ICIs) compared to the non-AE group (p = 0.021). Multivariate analysis revealed that the use of ICIs was a significant independent risk factor for treatment-related AEs. CONCLUSIONS Lung cancer patients with mild ILD suggestive of indeterminate for UIP and UIP patterns are at an increased risk for treatment-related AEs. Furthermore, ICI use is an independent risk factor for AEs in patients with lung cancer complicated by ILD, and ICIs should be used with great caution.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Takuya Tanaka
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Yoko Ishige
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Ikuyo Shionoya
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Kouichi Yamamura
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Takashi Sakuma
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Kazuaki Nishiki
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Keisuke Nakase
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Masafumi Nojiri
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Ryo Kato
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Shohei Shinomiya
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Yuki Fujimoto
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Taku Oikawa
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
| | - Shiro Mizuno
- Department of Respiratory MedicineKanazawa Medical UniversityIshikawaJapan
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Takahara Y, Nakase K, Nojiri M, Kato R, Shinomiya S, Oikawa T, Mizuno S. Relationship between clinical features and gene mutations in non-small cell lung cancer with osteoblastic bone metastasis. Cancer Treat Res Commun 2021; 28:100440. [PMID: 34325210 DOI: 10.1016/j.ctarc.2021.100440] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 05/26/2021] [Revised: 07/09/2021] [Accepted: 07/21/2021] [Indexed: 11/29/2022]
Abstract
OBJECTIVE Lung cancer patients presenting with osteoblastic bone metastases at the first visit is rare. We investigated the clinical characteristics and gene mutation rate of non-small cell lung cancer patients with osteoblastic bone metastases at the time of the initial diagnosis. MATERIALS AND METHODS We retrospectively screened newly diagnosed non-small cell lung cancer patients with osteoblastic bone metastases who presented from June 2015 to March 2021, and analyzed their clinical characteristics and status of EGFR gene mutations, EML4-ALK translocation and ROS1 rearrangements. For comparison, we collected data from patients with non-small cell lung cancer who had osteolytic bone metastases at their first visit between June 2015 and March 2021. RESULTS Fifty patients had bone metastases at the initial diagnosis. Among them, eight patients (8/50 = 16%) had osteoblastic bone metastases, and the lung tumors in all of them were histopathologically adenocarcinomas. Among the eight cases, two were EGFR mutation-positive, none were EML4-ALK translocation-positive, two were ROS1 rearrangement-positive, and the remaining four cases were negative for all three gene mutations/rearrangements. Compared with the osteolytic bone metastasis group, the percentage of non-smokers was higher (p = 0.020) and the ROS1 rearrangement positivity rate was higher (p = 0.05) in the osteoblastic bone metastasis group. CONCLUSION Our results indicate that osteoblastic bone metastases in NSCLC are suggestive of adenocarcinoma, and that a high proportion of these patients might be positive for ROS1 rearrangements, and hence, indicated for more aggressive diagnostic biopsies.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan.
| | - Keisuke Nakase
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa 920-0293, Japan
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Kato R, Hoshino T. Semiparametric Bayes instrumental variable estimation with many weak instruments. Stat (Int Stat Inst) 2021. [DOI: 10.1002/sta4.350] [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: 11/07/2022]
Affiliation(s)
- Ryo Kato
- Research Institute for Economics and Business Administration Kobe University Hyogo Japan
| | - Takahiro Hoshino
- Department of Economics Keio University Tokyo Japan
- Center for Advanced Intelligence Project RIKEN Tokyo Japan
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Mizuno S, Wakabayashi H, Fujishima I, Kishima M, Itoda M, Yamakawa M, Wada F, Kato R, Furiya Y, Nishioka S, Momosaki R. Construction and Quality Evaluation of the Japanese Sarcopenic Dysphagia Database. J Nutr Health Aging 2021; 25:926-932. [PMID: 34409973 DOI: 10.1007/s12603-021-1646-y] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
OBJECTIVES To describe the activity and evaluate the quality of the Japanese sarcopenic dysphagia database. DESIGN Cohort registry study. SETTING 19 hospitals including 9 acute care hospitals, 8 rehabilitation hospitals, 2 long-term care hospitals, and 1 home visit rehabilitation team. PARTICIPANTS 467 dysphagic patients, aged 20 years and older. MEASUREMENTS The following indices were assessed at baseline: age, sex, main disease, sarcopenic dysphagia, whole body sarcopenia, Food Intake Level Scale (FILS), malnutrition diagnosed by the Global Leadership Initiative on Malnutrition criteria, oral status assessed by the Revised Oral Assessment Guide or the Oral Health Assessment Tool, activities of daily living assessed by the Functional Independence Measure (FIM) or the Barthel Index (BI), Charlson comorbidity index, C-reactive protein and serum albumin levels, dysarthria, hoarseness, aphasia, pressure ulcers, bladder, bowel, and kidney function, respiratory status, polypharmacy, number of drugs, and involvement of health care professionals and rehabilitation nutrition team. FILS, FIM or BI, and outcome including discharge destination were assessed at follow-up. A simple comparison of cases and evaluation of the quality of data were performed. RESULTS The mean age was 80.4 ± 11.4 yr. The variable input error was 0. The number of patients with missing data was high for estimated glomerular filtration rate, C-reactive protein, serum albumin, skeletal mass index, and tongue pressure. The prevalence of either probable, possible, or no sarcopenic dysphagia was 105 (23%), 182 (39%), or 179 (38%), respectively. Doctors including physiatrists, nurses, physical therapists, and registered dietitians were involved with most patients, while the rehabilitation nutrition team was involved in only 16% of patients. CONCLUSIONS The quality of the database was relatively high. Sarcopenic dysphagia is common in patients with dysphagia.
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Affiliation(s)
- S Mizuno
- Hidetaka Wakabayashi, MD, PhD, Department of Rehabilitation Medicine, Tokyo Women's Medical University Hospital, 8-1, Kawada-cho, Shinjuku-ku, Tokyo, Japan. Code; 162-0054, Tel: +81-3-3353-8111, Fax: +81-3-5269-7639, E-mail:
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Ishida Y, Maeda K, Ueshima J, Shimizu A, Nonogaki T, Kato R, Matsuyama R, Yamanaka Y, Mori N. The SARC-F Score on Admission Predicts Falls during Hospitalization in Older Adults. J Nutr Health Aging 2021; 25:399-404. [PMID: 33575734 DOI: 10.1007/s12603-021-1597-3] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
OBJECTIVES Community-dwelling older adults with sarcopenia are likely to fall. However, few studies have investigated whether sarcopenia is associated with falls during hospitalization in older adults. The purpose of this study was to determine whether the SARC-F when used as a simple screening tool for sarcopenia at the time of admission, predicts in-hospital falls. DESIGN A retrospective, observational study. SETTING A 900-bed university hospital. PARTICIPANTS A total of 9,927 patients aged 65 years and older were hospitalized at the hospital between April 2019 and March 2020. MEASUREMENTS The SARC-F contains five items: strength, assistance in walking, rise from a chair, climb stairs, and falls were evaluated at hospital admission. To investigate the relationship between the SARC-F score and falls, a ROC curve analysis was performed. Multivariate analysis adjusted for fall-related confounding factors such as age, gender, ADL, and disease were performed. RESULTS Mean age: 75.9±6.7 years; male: 56.2% were analyzed, and 159 patients (1.6%) fell during hospitalization. SARC-F scores at admission were significantly higher in the fall group than in the control group (3 [1-6] points vs. 0 [¬0-2] point, p<0.001). Statistical association was observed between the SARC-F and in-hospital fall (area under the curve = 0.721 [0.678-0.764], p < 0.001). The cut-off value for the highest sensitivity and specificity of the SARC-F score for in-hospital falls was two (sensitivity = 0.679, specificity = 0.715). Among the subitem of the SARC-F, the hazard ratios for climbing stairs were significantly higher (HR = 1.52 [1.10-2.09], p = 0.011) and for a history of fall was significantly higher (HR = 1.41 [1.02-1.95], p = 0.036). A SARC-F score ≥ 2 had a significantly higher incidence of in-hospital falls compared to a SARC-F score <2 (3.7% vs. 0.7%, p < 0.001). Also, a SARC-F score ≥ 2 had a significantly higher hazard ratio for falls (2.11 [1.37-3.26], p < 0.001). CONCLUSION SARC-F can help predict falls among hospitalized older adults.
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Affiliation(s)
- Y Ishida
- Keisuke Maeda, M.D., Ph.D., Department of Geriatric Medicine, National Center for Geriatrics and Gerontology, 7-430 Morioka, Obu, Aichi, 474-8511, Japan, Phone: +81-562-46-2311; FAX: +81-562-44-8518, E-mail:
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Nishida K, Kawashima A, Kanazawa T, Kidani Y, Yoshida T, Hirata M, Yamamoto K, Yamamoto Y, Sawada M, Kato R, Kato T, Hatano K, Ujike T, Fujita K, Uemura M, Morimoto-Okazawa A, Iwahori K, Yamasaki M, Ohkura N, Sakaguchi S, Nonomura N, Doki Y, Wada H. Clinical importance of the expression of CD4+CD8+ T cells in renal cell carcinoma. Int Immunol 2020; 32:347-357. [PMID: 31950169 DOI: 10.1093/intimm/dxaa004] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 11/26/2019] [Accepted: 01/14/2020] [Indexed: 12/12/2022] Open
Abstract
OBJECTIVE CD4+CD8+ T cells are expressed in some cancer patients including those with renal cell carcinoma (RCC). However, no reports have mentioned the clinical importance of this expression. We evaluated the expression of CD4+CD8+ T cells in patients with various cancer types to clarify clinical characteristics and prognostic importance significantly correlating with these T cells. METHODS Expression of CD4+CD8+ T cells was evaluated using flowcytometry in tissue-infiltrating lymphocytes extracted from 260 cancer tissues including 104 RCC samples. RNA sequencing and characterization and regression (Citrus) was used to determine characteristics. The prognostic importance of CD4+CD8+ T cells was evaluated by Cox regression analysis. RESULTS Among eight cancer types, expression of CD4+CD8+ T cells was significantly highest in RCC patients. According to the expression of CD4+CD8+ T cells in adjacent normal tissue-infiltrating lymphocytes, 24 patients (23.1%) were defined as being positive for CD4+CD8+ with an expression higher than 9.29% in RCC patients. Citrus showed CD8+PD-1+TIM-3+CD103- T cells to be a specific subpopulation of CD4+CD8+ T cells. RNA sequencing revealed that CD4+CD8+ T cells had significantly lower diversity than the other T cells and shared most T-cell receptor clones with CD8+ not CD4+ T cells. Expression of CD4+CD8+ T cells was identified as an independent predictor of overall survival (hazard ratio: 0.11, 95% confidence interval: 0.01-0.86, P = 0.035) in multivariate analysis. CONCLUSIONS The expression of CD4+CD8+ T cells was significantly up-regulated in RCC patients and correlated significantly with prognostic importance in surgically treated RCC patients.
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Affiliation(s)
- Kentaro Nishida
- Department of Clinical Research in Tumour Immunology, Suita, Japan.,Department of Gastroenterological Surgery, Suita, Japan
| | - Atsunari Kawashima
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takayuki Kanazawa
- Department of Clinical Research in Tumour Immunology, Suita, Japan.,Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan
| | - Yujiro Kidani
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan.,Department of Basic Research in Tumour Immunology, Suita, Osaka, Japan
| | - Tetsuya Yoshida
- Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan.,Department of Basic Research in Tumour Immunology, Suita, Osaka, Japan
| | - Michinari Hirata
- Department of Clinical Research in Tumour Immunology, Suita, Japan.,Drug Discovery & Disease Research Laboratory, Shionogi & Co., Ltd., Toyonaka, Japan
| | - Kei Yamamoto
- Department of Clinical Research in Tumour Immunology, Suita, Japan.,Department of Gastroenterological Surgery, Suita, Japan
| | - Yoko Yamamoto
- Department of Clinical Research in Tumour Immunology, Suita, Japan
| | - Masaaki Sawada
- Department of Clinical Research in Tumour Immunology, Suita, Japan
| | - Ryo Kato
- Department of Clinical Research in Tumour Immunology, Suita, Japan.,Department of Gastroenterological Surgery, Suita, Japan
| | - Taigo Kato
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan.,Department of Urological Immuno-Oncology, Suita, Osaka, Japan
| | - Koji Hatano
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Takeshi Ujike
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Kazutoshi Fujita
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Motohide Uemura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan.,Department of Urological Immuno-Oncology, Suita, Osaka, Japan
| | | | - Kota Iwahori
- Department of Clinical Research in Tumour Immunology, Suita, Japan
| | | | - Naganari Ohkura
- Department of Basic Research in Tumour Immunology, Suita, Osaka, Japan
| | - Shimon Sakaguchi
- Department of Experimental Immunology, Immunology Frontier Research Centre, Graduate School of Medicine, Osaka University, Suita, Osaka, Japan
| | - Norio Nonomura
- Department of Urology, Graduate School of Medicine, Osaka University, Suita, Japan
| | - Yuichiro Doki
- Department of Gastroenterological Surgery, Suita, Japan
| | - Hisashi Wada
- Department of Clinical Research in Tumour Immunology, Suita, Japan
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Hertati A, Hayashi S, Ogata H, Miyata K, Kato R, Yamamoto T, Kadowaki M. Morphological elucidation of short-chain fatty acid receptor GPR41-positive enteric sensory neurons in the colon of mice with dextran sulfate sodium-induced colitis. Heliyon 2020; 6:e05647. [PMID: 33319102 PMCID: PMC7726667 DOI: 10.1016/j.heliyon.2020.e05647] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [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: 05/24/2020] [Revised: 11/04/2020] [Accepted: 11/30/2020] [Indexed: 12/14/2022] Open
Abstract
Although the etiology of inflammatory bowel disease (IBD) remains unclear, it has generally been accepted that abnormalities in the intestinal immune system and dysbiosis of the gut microbiota are involved in the pathology of IBD. Recently, short-chain fatty acids (SCFAs) produced by gut microbiota were reported to maintain intestinal homeostasis through their receptors, such as GPR41. However, there are contradictory reports about the role of GPR41 in intestinal inflammation. Consequently, the roles of GPR41 in dysbiosis induced by intestinal inflammation remain unclear. Thus, we investigated the distribution of GPR41 in the colonic mucosa of mice with dextran sulfate sodium (DSS)-induced colitis. GPR41-immunoreactive fibrous structures were observed in the colonic lamina propria and muscularis layer of normal mice. In addition, GPR41-immunoreactive fibrous structures partly colocalized with calcitonin gene-related peptide (CGRP; a neurotransmitter of cholinergic enteric sensory neurons)-immunoreactive nerve fibers in the colonic lamina propria, indicating that GPR41 is expressed in cholinergic intrinsic sensory neurons. Furthermore, both GPR41-immunoreactivities and CGRP-immunoreactivities were significantly increased in the lamina propria of the colon in mice with DSS-induced colitis. Interestingly, GPR41-immunoreactivities were often found in close proximity to F4/80+ macrophages in the colonic mucosa of normal mice, and their frequency was elevated in the colonic mucosa of mice with DSS-induced colitis. Therefore, the crosstalk between SCFA-sensing intrinsic sensory neurons and macrophages might be involved in the pathology of acute colitis.
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Affiliation(s)
- Ai Hertati
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan.,Research Center for Biotechnology, Indonesian Institute of Sciences, Cibinong, Indonesia
| | - Shusaku Hayashi
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Hanako Ogata
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Kana Miyata
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Ryo Kato
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Takeshi Yamamoto
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
| | - Makoto Kadowaki
- Division of Gastrointestinal Pathophysiology, Institute of Natural Medicine, University of Toyama, Toyama, Japan
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Kato R, Lettow JH, Patel SN, Rowan SJ. Ion-Conducting Thermoresponsive Films Based on Polymer-Grafted Cellulose Nanocrystals. ACS Appl Mater Interfaces 2020; 12:54083-54093. [PMID: 33201676 DOI: 10.1021/acsami.0c16059] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Mechanically robust, thermoresponsive, ion-conducting nanocomposite films are prepared from poly(2-phenylethyl methacrylate)-grafted cellulose nanocrystals (MxG-CNC-g-PPMA). One-component nanocomposite films of the polymer-grafted nanoparticle (PGN) MxG-CNC-g-PPMA are imbibed with 30 wt % imidazolium-based ionic liquid to produce flexible ion-conducting films. These films with 1-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (MxG-CNC-g-PPMA/[H]) not only display remarkable improvements in toughness (>25 times) and tensile strength (>70 times) relative to the corresponding films consisting of the ionic liquid imbibed in the two-component CNC/PPMA nanocomposite but also show higher ionic conductivity than the corresponding neat PPMA with the same weight percent of ionic liquid. Notably, the one-component film containing 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide (MxG-CNC-g-PPMA/[E]) exhibits temperature-responsive ionic conduction. The ionic conductivity decreases at around 60 °C as a consequence of the lower critical solution temperature phase transition of the grafted polymer in the ionic liquid, which leads to phase separation. Moreover, holding the MxG-CNC-g-PPMA/[E] film at room temperature for 24 h returns the film to its original homogenous state. These materials exhibit properties relevant to thermal cutoff safety devices (e.g., thermal fuse) where a reduction in conductivity above a critical temperature is needed.
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Iede K, Yamada T, Kato R, Ueda M, Tsuda Y, Nakashima S, Ohta K, Matsuyama J, Ikenaga M, Tominaga S. Predictive implications of decreased CA19-9 at 8 weeks during nab-paclitaxel plus gemcitabine for the induction of second-line chemotherapy for patients with advanced pancreatic cancer. Cancer Rep (Hoboken) 2020; 3:e1289. [PMID: 32969199 PMCID: PMC7941508 DOI: 10.1002/cnr2.1289] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 12/27/2022] Open
Abstract
Background Second‐line (2L) chemotherapy after nab‐paclitaxel plus gemcitabine (AG) is important for improving the survival of patients with advanced pancreatic cancer (APC). However, many patients fail to receive 2L chemotherapy because of rapid disease progression. Therefore, early recognition of any ineffectiveness during AG might lead to an increased induction rate of 2L chemotherapy. Aim We investigated the significance of treatment response at 8 weeks as a predictive factor for the induction of 2L chemotherapy after AG. Methods and results From January 2015 to January 2019, 41 patients with APC underwent AG as first‐line chemotherapy at our institute. Thirty‐three patients were evaluated at 8 weeks. Sixteen patients (48%) underwent 2L chemotherapy and 17 (52%) underwent no 2L chemotherapy. Clinical features and treatment response at 8 weeks were, retrospectively, compared among patients. Predictive factors for the induction of 2L chemotherapy were analyzed. Patients with an objective response by 8 weeks received 2L chemotherapy more frequently (P = .026). Decreased CA19‐9 (<50%) at 8 weeks was identified as an independent negative predictive factor for the induction of 2L chemotherapy. Conclusions Decreased CA19‐9 (<50%) at 8 weeks may indicate the ineffectiveness of AG and signify that a move to 2L chemotherapy may be required without delay.
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Affiliation(s)
- Kiyotsugu Iede
- Department of Clinical Oncology, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Terumasa Yamada
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Ryo Kato
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Masami Ueda
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Yujiro Tsuda
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Shinsuke Nakashima
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Katsuya Ohta
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Jin Matsuyama
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Masakazu Ikenaga
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Shusei Tominaga
- Department of Clinical Oncology, Higashiosaka City Medical Center, Higashiosaka, Japan
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Okada M, Hasegawa T, Kato R, Shiroyama T. Analysing regional unemployment rates, GDP per capita and financial support for regional suicide prevention programme on suicide mortality in Japan using governmental statistical data. BMJ Open 2020; 10:e037537. [PMID: 32859665 PMCID: PMC7454243 DOI: 10.1136/bmjopen-2020-037537] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES To explore the mechanisms of reduced suicide mortality in Japan, which decreased from 25.7 to 16.5 per 100 000 people following the comprehensive suicide prevention programme from 2009 to 2018, the present study determined the relationship between regional suicide mortality, socioeconomic data (GDP per capita, unemployment rates) and financial support for regional suicide prevention programmes. DESIGN AND SETTING Stepwise multiple regression analysis was used to determine the effects of regional GDP per capita, unemployment rates and implementation amount of financial support for regional suicide prevention programmes (Emergency Fund to Enhance Community-Based Suicide Countermeasures-EFECBSC) on age and gender disaggregated suicide mortalities in Japan between 2009 and 2018. Data on each prefecture's complete unemployment rates, GDP per capita and implementation amount of EFECBSC sub-divisions were derived from an official Japanese governmental database. RESULTS Both prefectural enlightenment and intervention model programmes were found to lead to a decrease in male suicide mortality, but were less effective in reducing female suicide mortality. Municipal enlightenment and intervention model programmes were also less effective in reducing suicide mortality. Municipal development programmes for listener and leader led to a greater decrease in suicide mortality for both men and women compared with such programmes at the prefectural level. Contrary to our expectations, reduced complete unemployment rate only reduced suicide mortality in the older male population without affecting female suicide mortality. CONCLUSION The study findings suggest an inverse relationship between financial support and suicide mortality in Japan. Furthermore, independent factors in the reduction of suicide mortality rates provide important information for planning evidence-based and cost-effective regional suicide prevention programmes.
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Affiliation(s)
- Motohiro Okada
- Neuropsychiatry, Graduate School of Medicine, Mie University, Tsu, Mie, Japan
| | - Toshiki Hasegawa
- Neuropsychiatry, Graduate School of Medicine, Mie University, Tsu, Mie, Japan
| | - Ryo Kato
- Neuropsychiatry, Graduate School of Medicine, Mie University, Tsu, Mie, Japan
| | - Takashi Shiroyama
- Neuropsychiatry, Graduate School of Medicine, Mie University, Tsu, Mie, Japan
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Kato R, Taguchi K, Yadav R, Umakoshi T, Verma P. One-side metal-coated pyramidal cantilever tips for highly reproducible tip-enhanced Raman spectroscopy. Nanotechnology 2020; 31:335207. [PMID: 32375128 DOI: 10.1088/1361-6528/ab90b6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Tip-enhanced Raman spectroscopy (TERS) has been recognized as a useful tool for nanoscale chemical analysis, and it can further reach down to the sub-nanometer scale in the gap-mode configuration. Using an atomic force microscopy (AFM) in gap-mode TERS for position control of a metallic tip, a unique and correlative analysis can be even realized at the single molecule level. However, one of crucial issues in AFM-based gap-mode TERS is the fabrication of reliable and reproducible cantilver metallic tips. Here, we propose a simple, cost-effective fabrication method of metal-coated tips for AFM-based gap-mode TERS by means of the physical vapor deposition technique in a reproducible way. Our plamonic tips have extremely smooth silver layers on one side of the pyramidal tip, which is totally different from the regular metallic tips that hold granular metallic structures randomly arranged on their bodies. Importantly, all fabricated tips exhibited a reasonably high enhancement factor of more than 104, which indicates that the reproducibility of our plasmonic tip is virtually 100% in the gap-mode configuration. The excellent reproducibility of gap-mode TERS measurement holds great promise for rendering AFM-based TERS as a powerful analytical technique in a broad range of fields.
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Affiliation(s)
- Ryo Kato
- Department of Applied Physics, Osaka University, Suita, Osaka 565-0871, Japan
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43
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Yu HY, Kamimura N, Kuwabara N, Kato R, Senda M, Masai E, Senda T. Structural insights into enzymatic mechanism of methylenetetrahydrofolate reductase (MTHFR) from Sphingobium sp. SYK-6. Acta Crystallogr A Found Adv 2020. [DOI: 10.1107/s0108767320098475] [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: 11/10/2022] Open
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44
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Iede K, Yamada T, Kato R, Ueda M, Tsuda Y, Nakashima S, Ohta K, Matsuyama J, Ikenaga M, Tominaga S. Efficacy of S-1 in second-line chemotherapy after nab-paclitaxel plus gemcitabine for patients with advanced pancreatic cancer. Cancer Rep (Hoboken) 2020; 3:e1215. [PMID: 32672000 DOI: 10.1002/cnr2.1215] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 06/17/2019] [Revised: 07/31/2019] [Accepted: 08/08/2019] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Second-line (2 L) chemotherapy is important for improved survival. However, the efficacy of S-1 after nab-paclitaxel plus gemcitabine (AG) for advanced pancreatic cancer (APC) remains unclear. AIM We retrospectively investigated the clinical impact of S-1 after AG. METHODS AND RESULTS From January 2015 to July 2018, 37 patients with APC underwent AG as first-line chemotherapy at our institute. Of these patients, 14 (38%) underwent S-1 as 2 L chemotherapy after AG (S-1 group), five (14%) received another agent after AG, and 18 (49%) underwent no 2 L chemotherapy (best supportive care [BSC] group). The clinical features were retrospectively compared between the S-1 and BSC groups. Prognostic factors for residual survival (RS) were analyzed using a Cox proportional hazards model. The induction rate of 2 L chemotherapy was 51%, and most patients received S-1 monotherapy (74%). The disease control rate and progression-free survival duration were 57.1% and 2.8 months, respectively. The median RS duration in the S-1 and BSC groups was 5.2 and 2.4 months, respectively; this difference was statistically significant (hazard ratio, 0.33; P = .005). The median overall survival duration in the S-1 and BSC groups was 12.3 and 5.0 months, respectively; this difference was also statistically significant (hazard ratio, 0.26; P = .001). The efficacy of S-1 in 2L chemotherapy for RS was identified in the multivariate analysis, as was age (<65 vs ≥65 y) and the presence of liver metastasis. CONCLUSION The antitumor activity of S-1 was retained after AG, and the induction of S-1 after AG might improve the prognosis of patients with APC.
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Affiliation(s)
- Kiyotsugu Iede
- Department of Clinical Oncology, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Terumasa Yamada
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Ryo Kato
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Masami Ueda
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Yujiro Tsuda
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Shinsuke Nakashima
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Katsuya Ohta
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Jin Matsuyama
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Masakazu Ikenaga
- Department of Gastroenterological Surgery, Higashiosaka City Medical Center, Higashiosaka, Japan
| | - Shusei Tominaga
- Department of Clinical Oncology, Higashiosaka City Medical Center, Higashiosaka, Japan
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45
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Kato R, Fukushima H, Kijima T, Yoshida S, Yokoyama M, Ishioka J, Matsuoka Y, Saito K, Otsuka Y, Koga F, Yano M, Tsukamoto T, Masuda H, Okuno T, Yonese J, Nagahama K, Kamata S, Noro A, Kageyama Y, Tsujii T, Morimoto S, Fujii Y. Predictive performance of the qSOFA score for in-hospital mortality of obstructive pyelonephritis patients: A multi-institutional study. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33590-4] [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] Open
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46
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Sakai Y, Sato S, Shindo T, Takahashi A, Kunishima Y, Kato R, Ito N, Okada M, Tachiki H, Taguchi K, Hirose T, Hotta H, Horita H, Matsukawa M, Muranaka T, Nishiyama K, Miyazaki A, Hashimoto K, Tanaka T, Masumori N. Anti-resorptive agent related osteonecrosis of the jaw (ARONJ) in urological malignancies: Is the risk different between kidney and prostate cancer patients? EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33316-4] [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] Open
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47
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Oyama A, Uchida D, Shiraha H, Sawahara H, Kato R, Iwamuro M, Horiguchi S, Okada H. Serum REIC/Dickkopf-3 Protein Level Predicts Disease-Free Survival in Patients with Hepatocellular Carcinoma. Acta Med Okayama 2020; 74:237-243. [PMID: 32577022 DOI: 10.18926/amo/59957] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The physiological role of the reduced expression of immortalized cells (REIC)/Dickkopf-3 (Dkk-3) protein in patients with hepatocellular carcinoma (HCC) remains unclear. In this study, we evaluated the effect of the REIC/Dkk-3 protein on HCC cell proliferation and assessed the relationship between the serum REIC/Dkk-3 protein level and the prognosis in patients with HCC. We evaluated the REIC/Dkk-3 protein-induced anticancer effects on Huh7 and Hep3B cells (HCC cell lines) in the presence of peripheral blood mononuclear cells (PBMCs), and found that combination treatment with REIC/Dkk-3 protein and PBMCs reduced the proliferation of HCC cells (Hep3B: 82.0%±16.3%; Huh7: 72.6%±9.1%). We also studied 194 HCC patients who underwent primary liver resection or primary radiofrequency ablation from 2008 to 2017. Serum REIC/Dkk-3 protein levels were measured by an enzyme-linked immunosorbent assay and compared to the prognostic data. The 3-year disease-free survival of the REIC/Dkk-3 high group was significantly higher than that in the REIC/Dkk-3 low group. In conclusion, this is the first study investigating the relationship between HCC patient survival and serum REIC/Dkk-3 protein levels in a large population. Based on the results, the serum REIC/Dkk-3 protein level should be considered a new prognostic marker for patients with HCC.
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Affiliation(s)
- Atsushi Oyama
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558,
| | - Daisuke Uchida
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hidenori Shiraha
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hiroaki Sawahara
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Ryo Kato
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Masaya Iwamuro
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Shigeru Horiguchi
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
| | - Hiroyuki Okada
- Department of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama 700-8558, Japan
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Takahara Y, Yamamura K, Matsuura S, Sakuma T, Nishiki K, Nakase K, Nojiri M, Kato R, Shinomiya S, Oikawa R, Fujimoto Y, Oikawa T, Osanai K, Ueda Y, Mizuno S. A case of ROS1-rearranged lung adenocarcinoma with osteoblastic bone metastasis. Respir Med Case Rep 2020; 30:101124. [PMID: 32577365 PMCID: PMC7303991 DOI: 10.1016/j.rmcr.2020.101124] [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: 01/31/2020] [Revised: 06/06/2020] [Accepted: 06/09/2020] [Indexed: 11/17/2022] Open
Abstract
A 53-year-old woman was referred to our hospital for detailed examination of abnormal chest shadows recognized on CT imaging. Transbronchial lung biopsy of a right S6 nodular shadow led to a diagnosis of lung adenocarcinoma. FDG-PET-CT showed FDG accumulation in the Th11 and L2 vertebral bodies and osteoblastic bone lesions. Since osteoblastic bone metastasis in lung cancer is extremely rare, CT-guided bone biopsy was performed. The tumor was diagnosed as ROS1-rearranged lung adenocarcinoma, for which crizotinib was administered, which led to improvement of both the primary and metastatic lesions. We report here a rare case of ROS1-rearranged lung adenocarcinoma with osteoblastic bone metastasis of lung cancer.
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Affiliation(s)
- Yutaka Takahara
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Kouichi Yamamura
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Saki Matsuura
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Takashi Sakuma
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Kazuaki Nishiki
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Keisuke Nakase
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Masafumi Nojiri
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Ryo Kato
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shohei Shinomiya
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Rieko Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Yuki Fujimoto
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Taku Oikawa
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Kazuhiro Osanai
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Yoshimichi Ueda
- Department of Pathology, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
| | - Shiro Mizuno
- Department of Respiratory Medicine, Kanazawa Medical University, 1-1 Daigaku, Uchinada-machi, Kahoku-gun, Ishikawa, 920-0293, Japan
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49
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Itoh K, Takashino A, Ohtsuka A, Kobe M, Sawamura S, Kato R, Hirayama S, Karaki F, Mizuguchi T, Sato N, Tokunaga K, Toda Y, Suga H, Ishida H, Fujii H. Synthesis of 1,2,5‐Oxadiazinane Derivatives by Photochemical Cycloaddition of Nitrones with Diaminomethanes. CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Kennosuke Itoh
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Atsushi Takashino
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Atsushi Ohtsuka
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Mizuki Kobe
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Shunsuke Sawamura
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Ryo Kato
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Shigeto Hirayama
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Fumika Karaki
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Takaaki Mizuguchi
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Noriko Sato
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Ken Tokunaga
- Division of Liberal Arts Center for Promotion of Higher EducationKogakuin University Tokyo 192-0015 Japan
| | - Yasunori Toda
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Hiroyuki Suga
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Hitoshi Ishida
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Hideaki Fujii
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
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50
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Itoh K, Takashino A, Ohtsuka A, Kobe M, Sawamura S, Kato R, Hirayama S, Karaki F, Mizuguchi T, Sato N, Tokunaga K, Toda Y, Suga H, Ishida H, Fujii H. Cover Feature: Synthesis of 1,2,5‐Oxadiazinane Derivatives by Photochemical Cycloaddition of Nitrones with Diaminomethanes (ChemPhotoChem 6/2020). CHEMPHOTOCHEM 2020. [DOI: 10.1002/cptc.202000105] [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: 11/07/2022]
Affiliation(s)
- Kennosuke Itoh
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Atsushi Takashino
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Atsushi Ohtsuka
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Mizuki Kobe
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Shunsuke Sawamura
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Ryo Kato
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Shigeto Hirayama
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Fumika Karaki
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Takaaki Mizuguchi
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Noriko Sato
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
| | - Ken Tokunaga
- Division of Liberal Arts Center for Promotion of Higher EducationKogakuin University Tokyo 192-0015 Japan
| | - Yasunori Toda
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Hiroyuki Suga
- Department of Materials Chemistry, Faculty of EngineeringShinshu University Nagano 380-8553 Japan
| | - Hitoshi Ishida
- Department of Chemistry, Graduate School of ScienceKitasato University Kanagawa 252-0373 Japan
| | - Hideaki Fujii
- Laboratory of Medicinal Chemistry, School of PharmacyKitasato University Tokyo 108-8641 Japan
- Medicinal Research Laboratories, School of PharmacyKitasato University Tokyo 108-8641 Japan
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