1
|
Nakamoto K, Horimasu Y, Yamaguchi K, Sakamoto S, Masuda T, Miyamoto S, Nakashima T, Iwamoto H, Ohshimo S, Sadamori T, Fujitaka K, Hamada H, Shime N, Hattori N. Usefulness of Quantification and Serial Monitoring of Fine Crackles for Early Detection of Treatment-related Lung Injury: A Report of Two Cases. Intern Med 2023:2387-23. [PMID: 37866919 DOI: 10.2169/internalmedicine.2387-23] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/24/2023] Open
Abstract
Early detection and appropriate management of treatment-related interstitial lung disease (ILD) are important in cancer treatment. We established an algorithm for quantifying fine crackles using machine learning and reported that the fine crackle quantitative value (FCQV) calculated by this algorithm was more sensitive than chest radiography for detecting interstitial changes. Using this algorithm, we periodically analyzed respiratory sounds in two patients with lung cancer who developed treatment-related ILDs and found that the FCQV was elevated before the diagnosis of ILD. These cases may indicate the usefulness of the FCQV in the early diagnosis of treatment-related ILDs.
Collapse
Affiliation(s)
- Kanako Nakamoto
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Yasushi Horimasu
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Kakuhiro Yamaguchi
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Shinjiro Sakamoto
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Takeshi Masuda
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Shintaro Miyamoto
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Taku Nakashima
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Hiroshi Iwamoto
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Shinichiro Ohshimo
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Takuma Sadamori
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Kazunori Fujitaka
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Hironobu Hamada
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| | - Nobuaki Shime
- Department of Emergency and Critical Care Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Hiroshima University, Graduate School of Biomedical and Health Sciences, Japan
| |
Collapse
|
2
|
Kitahara Y, Matsuura M, Yamasaki R, Nakamoto K, Kakumoto S, Tada S, Ito N, Miwata K, Okimoto M, Takafuta T. Concurrent lung adenocarcinoma hidden among multiple shadows of COVID-19 pneumonia: A rare and instructive case report. Clin Case Rep 2023; 11:e6859. [PMID: 36777793 PMCID: PMC9900237 DOI: 10.1002/ccr3.6859] [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: 09/27/2022] [Revised: 12/30/2022] [Accepted: 01/04/2023] [Indexed: 02/09/2023] Open
Abstract
A 40-year-old man was admitted with a diagnosis of COVID-19 pneumonia. Although most of multiple ground-glass opacities and consolidations on computed tomography improved, a round ground-glass opacity with consolidation remained unchanged and was suspected to be a part-solid nodule of lung adenocarcinoma. Pathologic diagnosis of resected tumor was papillary adenocarcinoma.
Collapse
Affiliation(s)
- Yoshihiro Kitahara
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Motoki Matsuura
- Department of Thoracic SurgeryHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Rie Yamasaki
- Department of PathologyHiroshima City Hiroshima Citizens HospitalHiroshimaJapan
| | - Kanako Nakamoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Shinji Kakumoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Shinpei Tada
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Noriaki Ito
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Kei Miwata
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Mafumi Okimoto
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| | - Toshiro Takafuta
- Department of Internal MedicineHiroshima City Funairi Citizens HospitalHiroshimaJapan
| |
Collapse
|
3
|
Yamasaki M, Matsumoto Y, Nakamoto K, Hattori N. Pulmonary pleomorphic carcinoma in an elderly patient treated with pembrolizumab shows a marked response. J Cancer Res Ther 2021; 17:1580-1582. [PMID: 34916402 DOI: 10.4103/jcrt.jcrt_361_19] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Pulmonary pleomorphic carcinoma, a relatively rare histopathological subtype of non-small cell lung cancer, is a malignant neoplasm with a poor prognosis. Despite the reports of a good response to immune-checkpoint inhibitor, only a few reports of pembrolizumab as the first-line treatment exist. We report the case of a 78-year-old male with right lung mass, mediastinal, right neck, and supraclavicular lymphadenopathies. He was diagnosed with pulmonary pleomorphic carcinoma, cT4N3M1c, Stage IVB. The tumor cells showed high programmed death-ligand 1 (PD-L1) expression but no microsatellite instability. After three cycles of pembrolizumab as the first-line therapy, chest computed tomography revealed marked reduction in tumor diameter. No remarkable adverse events occurred. The patient is alive with no complaints and no disease progression and has continued pembrolizumab for 8 months. Thus, first-line pembrolizumab therapy appears beneficial against pulmonary pleomorphic carcinoma, at least when PD-L1 expression is high. It is also effective in elderly patients.
Collapse
Affiliation(s)
- Masahiro Yamasaki
- Department of Respiratory Medicine, Hiroshima Red Cross Hospital and Atomic-Bomb Survivors Hospital, Hiroshima, Japan
| | - Yu Matsumoto
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| | - Kanako Nakamoto
- Department of Internal Medicine, Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Noboru Hattori
- Department of Molecular and Internal Medicine, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan
| |
Collapse
|
4
|
Sera F, Ohtani T, Nakamoto K, Yamada T, Yasumura Y, Tamaki S, Hayashi T, Yano M, Hikoso S, Yamauchi-Takihara K, Sakata Y. Clinical characteristics and prognostic impact of pulmonary hypertension in heart failure with preserved ejection fraction: the PURSUIT HFpEF study. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2286] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Heart failure (HF) with preserved ejection fraction (HFpEF) can develop pulmonary hypertension (PH), which can result from pre-capillary PH as well as post-capillary PH. However, the prevalence and clinical significance of pre-capillary component of PH in HFpEF remain unknown.
Purpose
We aimed to investigate prevalence, clinical features, and prognostic impact of pre-capillary and/or post capillary PH associated with HFpEF.
Methods
From the PURSUIT-HFpEF (Prospective Multicenter Observational Study of Patients with Heart Failure with Preserved Ejection Fraction) registry, 204 patients (men: 46%, age: 79±9 years) who were hospitalized with HF and underwent right heart catheterization were divided into 4 groups according to the PH guidelines: non-PH, isolated post-capillary PH (Ipc-PH), pre-capillary PH, and combined pre- and post-capillary PH (Cpc-PH). Patients who had been diagnosed with idiopathic pulmonary arterial hypertension were excluded from the analysis.
Results
The prevalence of PH was 31% (Ipc-PH: 22%, pre-capillary PH: 3%, Cpc-PH: 6%). The prevalence of subcategories of PH was significantly different depending on mean right atrial pressure (RAP) (figure). Echocardiography at discharge showed no significant differences in RV diameter or TAPSE, but smaller LV diameter and higher E/e' in pre-capillary PH and Cpc-PH, which resulted in a higher operant diastolic elastance (Ed). Composite endpoint of all-cause mortality and HF hospitalization at 1 year occurred 13% in non-PH, 25% in Ipc-PH, 49% in pre-capillary PH, and 63% in Cpc-PH, respectively (p=0.001 by log-rank test).
Conclusions
Distinct prevalence of PH was observed in the groups with different RAP levels. Pre-capillary component of PH was associated with impaired LV diastolic function and worse outcomes in HFpEF.
Figure 1
Funding Acknowledgement
Type of funding source: Private company. Main funding source(s): Roche Diagnostics K.K.; Fuji Film Toyama Chemical Co. Ltd
Collapse
Affiliation(s)
- F Sera
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Ohtani
- Osaka University Graduate School of Medicine, Suita, Japan
| | - K Nakamoto
- Osaka University Graduate School of Medicine, Suita, Japan
| | - T Yamada
- Osaka General Medical Center, Osaka, Japan
| | - Y Yasumura
- Amagasaki Chuo Hospital, Amagasaki, Japan
| | - S Tamaki
- Osaka General Medical Center, Osaka, Japan
| | | | - M Yano
- Osaka Rosai Hospital, Sakai, Japan
| | - S Hikoso
- Osaka University Graduate School of Medicine, Suita, Japan
| | | | - Y Sakata
- Osaka University Graduate School of Medicine, Suita, Japan
| |
Collapse
|
5
|
Shiraki T, Ohtani T, Kioka H, Mizote I, Tsukamoto Y, Nakamura D, Yokoi K, Ide S, Nakamoto K, Takeda Y, Hikoso S, Sawa Y, Sakata Y. Serial evaluation of cardiac allograft vasculopathy after heart transplantation by dual-modality intravascular ultrasound and optical coherence tomography. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.1293] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
Cardiac allograft vasculopathy is a combination of the development of de novo plaque and the progression of donor-transmitted plaque.
Purpose
This study aimed to evaluate the development of de novo plaque and the progression of donor-transmitted plaque within 12-month after heart transplantation (HTx) using serial intravascular ultrasound (IVUS) and optical coherence tomography (OCT). The association between inflammatory cytokines and plaque progression was also examined.
Methods
We prospectively enrolled 40 recipients to conduct serial three-vessel IVUS and OCT analysis at 8-week and 12-month after HTx. De novo plaque was defined as having maximum intimal thickness (MIT) ≥0.5 mm at 12-month in the absence of donor-transmitted plaques (MIT ≥0.5 mm at 8-week). Serum cytokines were screened with a bead-based multiplex assay.
Results
A total of 13 de novo plaques (fibrous, n=10; fibroatheroma, n=3) were detected in eight recipients. Serum interleukin (IL)-31 at 8-week was associated with the development of de novo plaques (p=0.009). A total of 31 donor-transmitted plaques (fibrous, n=12; fibroatheroma, n=11; fibrocalcific, n=8) were detected in 17 recipients. Multiple regression analysis revealed that fibrous (p=0.026) and fibroatheroma (p=0.012) observed at 8-week were significantly associated with subsequent plaque progression within 12-month after HTx. ΔPlaque burden was significant higher in de novo plaque than donor-transmitted plaque (38.8% [29.6–41.2] versus 8.7% [1.3–13.6], p<0.001). The prevalence of macrophage accumulation was lower in de novo plaque than in donor-transmitted plaque (8% versus 52%, p=0.006). Serum IL-31 at 8-week was correlated with the progression of donor-transmitted plaque as well as de novo plaque (r=0.663, p=0.029) although other cytokines like IL-1β, IL-6, IL-17, and tissue necrotic factor alpha were not.
Conclusions
In de novo plaques, fibrous plaque was the most common and macrophage accumulation was rarely observed. In donor-transmitted plaque, fibrous and fibroatheroma were independent predictor for the subsequent plaque progression. Serum interleukin-31 surge at subacute phase may play pathogenic role in cardiac allograft vasculopathy.
Funding Acknowledgement
Type of funding source: Public grant(s) – National budget only. Main funding source(s): Grants-in-Aid for Scientific Research (KAKENHI)
Collapse
Affiliation(s)
- T Shiraki
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - T Ohtani
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - H Kioka
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - I Mizote
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - Y Tsukamoto
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - D Nakamura
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - K Yokoi
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - S Ide
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - K Nakamoto
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - Y Takeda
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - S Hikoso
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| | - Y Sawa
- Osaka University Graduate School of Medicine, Cardiovascular Surgery, Suita, Japan
| | - Y Sakata
- Osaka University Graduate School of Medicine, Cardiovascular Medicine, Suita, Japan
| |
Collapse
|
6
|
Hamai K, Tanahashi H, Ueno S, Konishi H, Matsumura M, Nomura A, Nakamoto K, Isoyama S, Tanimoto T, Shoda H, Ishikawa N. First-line immune checkpoint therapy in metastatic squamous cell lung cancer harboring both EGFR mutation and high expression of PD-L1: A case report. Thorac Cancer 2020; 11:1716-1719. [PMID: 32291904 PMCID: PMC7262880 DOI: 10.1111/1759-7714.13436] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 03/26/2020] [Accepted: 03/27/2020] [Indexed: 11/29/2022] Open
Abstract
A 90-year-old female was admitted to our hospital with a history of a dry cough. Chest computed tomography (CT) scan showed a tumor shadow, and CT-guided lung biopsy revealed squamous cell carcinoma harboring an EGFR mutation. In addition, programmed death-ligand 1 (PD-L1) was highly expressed with a tumor proportion score (TPS) of >75%. Pembrolizumab therapy in the first-line setting was not effective, and the patient died at six months from the first visit. Squamous cell lung cancers (SCLCs) with both EGFR mutation and high expression of PD-L1 are very rare.
Collapse
Affiliation(s)
- Kosuke Hamai
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Hiroki Tanahashi
- Department of Internal and Molecular Medicine, Hiroshima University, Hiroshima, Japan
| | - Sayaka Ueno
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Hanae Konishi
- Department of Respiratory Medicine, Hiroshima City Asa Citizens Hospital, Hiroshima, Japan
| | - Mirai Matsumura
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Akio Nomura
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Kanako Nakamoto
- Department of Respiratory Medicine, Hiroshima City Funairi Citizens Hospital, Hiroshima, Japan
| | - Shoko Isoyama
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Takuya Tanimoto
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| | - Hiroyasu Shoda
- Department of Respiratory Medicine, Hiroshima City Hiroshima Citizens Hospital, Hiroshima, Japan
| | - Nobuhisa Ishikawa
- Department of Respiratory Medicine, Hiroshima Prefectural Hospital, Hiroshima, Japan
| |
Collapse
|
7
|
Nakamoto K, Isakari H, Takahashi T, Matsumoto T. Acceleration of a multi-objective topology optimisation in 2D electro-magnetic field based on the level-set method and the boundary element method by the h-matrix method. Int J CMEM 2017. [DOI: 10.2495/cmem-v5-n5-686-695] [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: 11/09/2022] Open
|
8
|
Nakamoto K, Ohtani T, Kioka H, Tsukamoto Y, Yoshioka D, Saito S, Toda K, Sawa Y, Sakata Y. Considering LV Dimension Is Important in Assessing the Risk of Right Ventricular Failure after Left Ventricular Assist Device Implantation. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.1104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
9
|
Nishinaka T, Nakamoto K, Tokuyama S. Early life stress induces sex-dependent increases in phosphorylated extracellular signal-regulated kinase in brains of mice with neuropathic pain. Eur J Pain 2016; 20:1346-56. [DOI: 10.1002/ejp.860] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/31/2016] [Indexed: 12/22/2022]
Affiliation(s)
- T. Nishinaka
- Department of Clinical Pharmacy; School of Pharmaceutical Sciences; Kobe Gakuin University; Kobe Japan
| | - K. Nakamoto
- Department of Clinical Pharmacy; School of Pharmaceutical Sciences; Kobe Gakuin University; Kobe Japan
| | - S. Tokuyama
- Department of Clinical Pharmacy; School of Pharmaceutical Sciences; Kobe Gakuin University; Kobe Japan
| |
Collapse
|
10
|
Nakamoto K, Nishinaka T, Sato N, Aizawa F, Yamashita T, Mankura M, Koyama Y, Kasuya F, Tokuyama S. The activation of supraspinal GPR40/FFA1 receptor signalling regulates the descending pain control system. Br J Pharmacol 2015; 172:1250-62. [PMID: 25362997 PMCID: PMC4337699 DOI: 10.1111/bph.13003] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 10/20/2014] [Accepted: 10/24/2014] [Indexed: 01/13/2023] Open
Abstract
BACKGROUND AND PURPOSE The ω-3 polyunsaturated fatty acids exert antinociceptive effects in inflammatory and neuropathic pain; however, the underlying mechanisms remain unclear. Docosahexaenoic acid-induced antinociception may be mediated by the orphan GPR40, now identified as the free fatty acid receptor 1 (FFA1 receptor). Here, we examined the involvement of supraspinal FFA1 receptor signalling in the regulation of inhibitory pain control systems consisting of serotonergic and noradrenergic neurons. EXPERIMENTAL APPROACH Formalin-induced pain behaviours were measured in mice. Antinociception induced by FFA1 receptor agonists was examined by intrathecal injections of a catecholaminergic toxin, 5-HT lowering drug or these antagonists. The expression of FFA1 receptor protein and c-Fos was estimated by immunohistochemistry, and the levels of noradrenaline and 5-HT in the spinal cord were measured by LC-MS/MS. KEY RESULTS FFA1 receptors colocalized with NeuN (a neuron marker) in the medulla oblongata and with tryptophan hydroxylase (TPH; a serotonergic neuron marker) and dopamine β-hydroxylase (DBH; a noradrenergic neuron marker). A single i.c.v. injection of GW9508, a FFA1 receptor agonist, increased the number of c-Fos-positive cells and the number of neurons double-labelled for c-Fos and TPH and/or DBH. It decreased formalin-induced pain behaviour. This effect was inhibited by pretreatment with 6-hydroxydopamine, DL-p-chlorophenylalanine, yohimbine or WAY100635. Furthermore, GW9508 facilitated the release of noradrenaline and 5-HT in the spinal cord. In addition, GW1100, a FFA1 receptor antagonist, significantly increased formalin-induced pain-related behaviour. CONCLUSION AND IMPLICATIONS Activation of the FFA1 receptor signalling pathway may play an important role in the regulation of the descending pain control system.
Collapse
Affiliation(s)
- K Nakamoto
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - T Nishinaka
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - N Sato
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - F Aizawa
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - T Yamashita
- Biochemical Toxicology Laboratory, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - M Mankura
- Faculty of Food Culture, Kurashiki Sakuyo UniversityKurashiki City, Japan
| | - Y Koyama
- Laboratory of Pharmacology, Faculty of Pharmacy, Osaka Ohtani UniversityTonda-bayashi, Japan
| | - F Kasuya
- Biochemical Toxicology Laboratory, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| | - S Tokuyama
- Department of Clinical Pharmacy, School of Pharmaceutical Sciences, Kobe Gakuin UniversityKobe, Japan
| |
Collapse
|
11
|
Königer F, Müller A, Nakamoto K. Notizen: Matrixisolierungs- und Isotopensubstitutionstechnik: Germaniumisotopenaufspaltung der v3(F2)-Schwingung von GeCl4 und Chlorisotopenaufspaltung von GeClnCl4-n / Matrix Isolation and Isotopic Substitution Technique: Germanium Isotopic Splitting Pattern of the v3(F2) Mode of GeCl4 and Chlorine Isotopic Splitting Pattern of GeClnCl4-n. Zeitschrift für Naturforschung B 2014. [DOI: 10.1515/znb-1975-5-629] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
The matrix isolation spectrum of germanium tetrachloride in the region of the v3(F2) vibration has been measured. Applying the isotopic substitution technique the spectrum of the normal sample could be interpreted. The frequencies of the different isotopic species have been assigned.
Collapse
Affiliation(s)
- F. Königer
- Institut für Chemie der Universität Dortmund
| | - A. Müller
- Institut für Chemie der Universität Dortmund
| | - K. Nakamoto
- Institut für Chemie der Universität Dortmund
| |
Collapse
|
12
|
|
13
|
Okamoto K, Kodama K, Takase K, Nakamoto K, Coffey H, Selvaraj A, Smith P, Iwata M, Tsuruoka A. 307 Anti-tumor Activities of Lenvatinib Against RET Gene Fusion Driven Tumor Models. Eur J Cancer 2012. [DOI: 10.1016/s0959-8049(12)72105-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
14
|
Wang J, Liu Y, Qin L, Chimoto S, Nakamoto K, Sato Y. Chronic microstimulation of cat auditory cortex effective to evoke detection behaviors. Neuroscience 2012; 206:81-8. [PMID: 22285311 DOI: 10.1016/j.neuroscience.2012.01.012] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2011] [Revised: 12/25/2011] [Accepted: 01/07/2012] [Indexed: 11/19/2022]
Abstract
The purpose of this study was to clarify stimulus pulse parameters effective to elicit behaviors of cats trained to detect electric pulse stimuli through chronically implanted electrodes in the primary auditory cortex. One or two pulse parameters were systematically shifted from the standard stimulus consisting of constant-current pulses of amplitude 80 μA, duration 0.2 ms, number of pulses 33, and rate 200 Hz (compatible with interpulse interval 5 ms). Interaction between the pulse amplitude and pulse duration was investigated: although the proportion of stimulus detection responses increased with increasing phase charge (pulse amplitude×pulse duration), a combination of relatively high amplitude during short pulse duration elicited a higher proportion of detection responses when phase charge was constant. Interaction between the number of pulses and interpulse intervals was investigated. We found that the proportion of detection responses is explained by the linear function of two factors, overall charge (phase charge×the number of pulses) and train duration: the proportion of detection responses increased with increasing overall charge and decreasing train duration. Interaction between pulse amplitude and the number of pulses was investigated. We again found that the proportion of detection responses is explained by the linear function of overall charge and train duration in the amplitude-number shift paradigm. Thus, the behavior performance (proportion of detection responses) is a linear time function of overall charge and train duration regardless of the stimulus paradigm. We believe that the findings will contribute to the development of auditory cortex implants for transfer of auditory information directly to the brain.
Collapse
Affiliation(s)
- J Wang
- Department of Physiology, Interdisciplinary Graduate School of Medicine and Engineering, University of Yamanashi, Chuo, Yamanashi 409-3898, Japan
| | | | | | | | | | | |
Collapse
|
15
|
Palmer AR, Hall DA, Sumner C, Barrett DJK, Jones S, Nakamoto K, Moore DR. Some investigations into non-passive listening. Hear Res 2007; 229:148-57. [PMID: 17275232 DOI: 10.1016/j.heares.2006.12.007] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2006] [Revised: 12/07/2006] [Accepted: 12/07/2006] [Indexed: 10/23/2022]
Abstract
Our knowledge of the function of the auditory nervous system is based upon a wealth of data obtained, for the most part, in anaesthetised animals. More recently, it has been generally acknowledged that factors such as attention profoundly modulate the activity of sensory systems and this can take place at many levels of processing. Imaging studies, in particular, have revealed the greater activation of auditory areas and areas outside of sensory processing areas when attending to a stimulus. We present here a brief review of the consequences of such non-passive listening and go on to describe some of the experiments we are conducting to investigate them. In imaging studies, using fMRI, we can demonstrate the activation of attention networks that are non-specific to the sensory modality as well as greater and different activation of the areas of the supra-temporal plane that includes primary and secondary auditory areas. The profuse descending connections of the auditory system seem likely to be part of the mechanisms subserving attention to sound. These are generally thought to be largely inactivated by anaesthesia. However, we have been able to demonstrate that even in an anaesthetised preparation, removing the descending control from the cortex leads to quite profound changes in the temporal patterns of activation by sounds in thalamus and inferior colliculus. Some of these effects seem to be specific to the ear of stimulation and affect interaural processing. To bridge these observations we are developing an awake behaving preparation involving freely moving animals in which it will be possible to investigate the effects of consciousness (by contrasting awake and anaesthetized), passive and active listening.
Collapse
Affiliation(s)
- A R Palmer
- MRC Institute of Hearing Research, University Park, Nottingham, UK.
| | | | | | | | | | | | | |
Collapse
|
16
|
Inukai T, Zhang X, Goto M, Hirose K, Uno K, Akahane K, Nemoto A, Goi K, Sato H, Takahashi K, Honna H, Kagami K, Nakamoto K, Yagita H, Okumura K, Koyama-Okazaki T, Nakazawa S, Sugita K. Resistance of infant leukemia with MLL rearrangement to tumor necrosis factor-related apoptosis-inducing ligand: a possible mechanism for poor sensitivity to antitumor immunity. Leukemia 2006; 20:2119-29. [PMID: 17066095 DOI: 10.1038/sj.leu.2404429] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.3] [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: 11/09/2022]
Abstract
Malignant cells generally acquire some immune escape mechanisms for clonal expansion. Immune escape mechanisms also contribute to the failure of graft-versus-leukemia (GVL) effect after allogeneic hematopoietic stem cell transplantation (allo-SCT). Infant leukemias with mixed-lineage leukemia (MLL) rearrangement have a remarkably short latency, and GVL effect after allo-SCT has not been clearly evidenced in these leukemias. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL)- and FasL-mediated cytotoxic pathways play important roles in cytotoxic T-lymphocyte- and natural killer cell-mediated antitumor immunity and optimal GVL activity. We investigated the in vitro sensitivity of MLL-rearranged acute lymphoblastic leukemia (ALL) and acute myeloblastic leukemia (AML) cells to TRAIL- and FasL-mediated cytotoxicity. Most of cell lines and primary leukemia cells were highly resistant to TRAIL primarily owing to low cell-surface expression of death receptors in ALL and simultaneous expression of decoy receptors in AML. Nearly half of cell lines and majority of primary leukemia cells showed low sensitivity to FasL. These results suggest that resistance to death-inducing ligands, particularly to TRAIL, could be one of the mechanisms for a rapid clonal expansion and a poor sensitivity to the GVL effect in infant leukemias with MLL rearrangement.
Collapse
Affiliation(s)
- T Inukai
- Department of Pediatrics, School of Medicine, University of Yamanashi, Yamanashi, Japan.
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
17
|
Masuda M, Morimoto T, Kobatake S, Nishimura N, Nakamoto K, Dong XH, Komiyama Y, Ogawa R, Takahashi H. Measurement of soluble Fcgamma receptor type IIIa derived from macrophages in plasma: increase in patients with rheumatoid arthritis. Clin Exp Immunol 2003; 132:477-84. [PMID: 12780696 PMCID: PMC1808718 DOI: 10.1046/j.1365-2249.2003.02168.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.5] [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: 11/20/2022] Open
Abstract
FcgammaRIII (CD16) is found in two alternative forms, a transmembrane FcgammaRIIIa expressed on NK cells and macrophages, and a glycosylphosphatidylinositol-linked FcgammaRIIIb present on neutrophils. Previously, we measured soluble FcgammaRIIIa (sFcgammaRIIIa) in plasma of NA(1 +, 2-) phenotyped donors with the anti-FcgammaRIII monoclonal antibody (MoAb) GRM1, which recognizes NA2-FcgammaRIIIb and FcgammaRIIIa. The level of sFcgammaRIIIa, as well as the total sFcgammaRIII (sFcgammaRIIIa plus sFcgammaRIIIb) in patients with rheumatoid arthritis (RA) was significantly higher than that in healthy controls. In this study, we measured sFcgammaRIIIa(M)(phi) in plasma with a newly developed anti-FcgammaRIII MoAb, MKGR14 (mIgM), which recognizes FcgammaRIIIa(M)(phi) specifically. From the recovery of purified sFcgammaRIIIa(M)(phi), the amount of sFcgammaRIIIa(M)(phi) present was about half that of sFcgammaRIIIa(NK), and that of sFcgammaRIIIa was about 50 times lower than that of sFcgammaRIIIb in pooled plasma from healthy NA(1 +, 2-) phenotyped donors. The level of sFcgammaRIIIa(M)(phi) in RA patients was about four times higher than that in healthy controls. In RA patients, both the sFcgammaRIIIa(M)(phi) and sFcgammaRIIIa levels were increased as proportionally as the Lansbury Index. The sFcgammaRIIIa, but not sFcgammaRIIIa(M)(phi) levels, were increased directly proportional to C-reactive protein. sFcgammaRIIIa(M)(phi) may be a novel marker of disease activity in RA.
Collapse
Affiliation(s)
- M Masuda
- Department of Clinical Sciences and Laboratory Medicine, Kansai Medical University, Moriguchi, Osaka, Japan.
| | | | | | | | | | | | | | | | | |
Collapse
|
18
|
|
19
|
Nakamoto K, Suzuki M, Ishiguro T, Kozuka M, Nishida Y, Kida S. Resonance Raman spectra of molecular oxygen adducts of N,N'-ethylenebis(salicylideniminato)cobalt(II), [BCo(salen)]2O2 (B = pyridine, pyridine N-oxide, and dimethylformamide). Inorg Chem 2002. [DOI: 10.1021/ic50211a066] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
20
|
Ogoshi H, Watanbe E, Yoshida Z, Kincaid J, Nakamoto K. Synthesis and far-infrared spectra of ferric octaethylporphine complexes. J Am Chem Soc 2002. [DOI: 10.1021/ja00790a017] [Citation(s) in RCA: 76] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
21
|
Bajdor K, Nakamoto K, Kincaid J. Resonance Raman excitation of oxygen (O2) stretching vibrations of oxy(tetraphenylporphyrinato)cobalt(II) at 457.9 nm. J Am Chem Soc 2002. [DOI: 10.1021/ja00341a090] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
22
|
Basile LJ, Ferraro JR, Choca M, Nakamoto K. Pressure-induced reversible conversion of pentakis(cyano-C)nickelate(3-) from trigonal-bipyramidal to square-pyrimidal geometry. Inorg Chem 2002. [DOI: 10.1021/ic50132a063] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
23
|
Koeniger-Ahlborn E, Mueller A, Cormier AD, Brown JD, Nakamoto K. Metal isotope shifts and normal-coordinate analysis of the nickel thiomolybdate ([58Ni(92MoS4)2]2-) ion and its nickel-62 and molybdenum-100 analogs. Inorg Chem 2002. [DOI: 10.1021/ic50150a056] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
24
|
|
25
|
Suzuki M, Ishiguro T, Kozuka M, Nakamoto K. Resonance Raman spectra, excitation profiles, and infrared spectra of [N,N'-ethylenebis(salicylideniminato)]cobalt(II) in the solid state. Inorg Chem 2002. [DOI: 10.1021/ic50221a011] [Citation(s) in RCA: 45] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
26
|
Watanabe T, Ama T, Nakamoto K. Matrix-isolation infrared spectra of dioxygen adducts of iron(II) porphyrins and related compounds. ACTA ACUST UNITED AC 2002. [DOI: 10.1021/j150647a023] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
27
|
Ohta N, Scheuermann W, Nakamoto K, Matsuda Y, Yamada S, Murakami Y. Resonance Raman spectra of tetrapyrrole complexes of oxomolybdenum(V). Inorg Chem 2002. [DOI: 10.1021/ic50192a055] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
28
|
Clark RJH, Turtle PC, Strommen DP, Streusand B, Kincaid J, Nakamoto K. Resonance Raman spectra and excitation profiles of tris(.alpha.-diimine) complexes of iron(II). Inorg Chem 2002. [DOI: 10.1021/ic50167a020] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
29
|
Nakamoto K, Nonaka Y, Ishiguro, Urban MW, Suzuki M, Kozuka M, Nishida Y, Kida S. Resonance Raman and infrared spectra of molecular oxygen adducts of N,N'-ethylenebis(2,2-diacetylethylideneaminato)cobalt(II). J Am Chem Soc 2002. [DOI: 10.1021/ja00376a024] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
30
|
Ogoshi H, Watanabe E, Yoshida Z, Kincaid J, Nakamoto K. Infrared spectra of metal complexes of octaethylchlorine analogs of chlorophyll and heme d. Inorg Chem 2002. [DOI: 10.1021/ic50148a029] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
31
|
Ferraro JR, Nakamoto K. Pressure effects on the ligand-field spectra of nickel(II) and cobalt(II) Five-coordinate complexes of the type ML3X2. Inorg Chem 2002. [DOI: 10.1021/ic50115a075] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
32
|
Nakamoto K, Ito A, Watabe K, Koma Y, Asada H, Yoshikawa K, Shinomura Y, Matsuzawa Y, Nojima H, Kitamura Y. Increased expression of a nucleolar Nop5/Sik family member in metastatic melanoma cells: evidence for its role in nucleolar sizing and function. Am J Pathol 2001; 159:1363-74. [PMID: 11583964 PMCID: PMC1850506 DOI: 10.1016/s0002-9440(10)62523-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/03/2001] [Indexed: 01/12/2023]
Abstract
F10 and BL6 cells of B16 mouse melanoma cells are metastatic after intravenous injection, but only BL6 cells can metastasize to lungs after subcutaneous injection. Differences in gene expression between the two cell lines were examined, and a greater expression of the Sik-similar protein (Sik-SP) gene was found in BL6 cells. Structurally, Sik-SP belongs to the nucleolar Nop5/Sik family whose members play central roles in ribosome biogenesis; however, the function of Sik-SP has not been examined. Cytology with green fluorescent protein-fused proteins showed that Sik-SP was localized to the nucleolus. To examine whether Sik-SP is involved in ribosome biogenesis, two parameters were measured: magnitude of ribosomal RNA synthesis per nucleus and magnitude of protein production from the same amount of mRNA of an exogenous luciferase gene. Both values and, in addition, nucleolar size were larger in COS-7 monkey kidney cells overexpressing Sik-SP and BL6 cells than in mock-transfected COS-7 and F10 cells, respectively. Sik-SP seemed to promote ribosome biogenesis in the nucleolus. Furthermore, the expression of Sik-SP seemed to confer a greater cell growth response to serum, because such a response was greater in BL6 cells and F10 cells overexpressing Sik-SP than in untreated and mock-transfected F10 cells. Sik-SP may render melanoma cells more competent to survive through augmenting the activity of nucleolus.
Collapse
Affiliation(s)
- K Nakamoto
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka, Japan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Watabe K, Ito A, Asada H, Endo Y, Kobayashi T, Nakamoto K, Itami S, Takao S, Shinomura Y, Aikou T, Yoshikawa K, Matsuzawa Y, Kitamura Y, Nojima H. Structure, expression and chromosome mapping of MLZE, a novel gene which is preferentially expressed in metastatic melanoma cells. Jpn J Cancer Res 2001; 92:140-51. [PMID: 11223543 PMCID: PMC5926699 DOI: 10.1111/j.1349-7006.2001.tb01076.x] [Citation(s) in RCA: 81] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
We isolated a novel gene, termed MLZE, from a B16-BL6 cDNA library after subtraction of B16-F10 mRNA. Expression levels of mouse MLZE (mMLZE) increased in accordance with metastatic ability of B16 melanoma sublines. Human homolog of mMlze (hMlze) contained one leucine zipper structure and two potential nuclear localizing signals. Northern blot analysis of multiple human tissues showed that hMLZE was expressed primarily in trachea and spleen. We mapped the hMLZE gene (by fluorescence in situ hybridization) to 8q24.1 - 2, which contains the c-myc gene and is often amplified in malignant melanoma. Immunohistochemistry revealed that the number of hMlze-positive cases was significantly larger in Clark levels III, IV and V melanomas (6 / 11 = 55%) than in Clark levels I and II melanomas (2 / 15 = 13%). In two cases of hMlze-positive melanomas, the strength of hMlze staining increased substantially in the deep component of the tumor. Considering that melanomas above Clark level II are more metastatic than those below Clark level III, these findings suggested that MLZE is one of the genes whose expression is upregulated during the course of acquisition of metastatic potential in melanoma cells.
Collapse
Affiliation(s)
- K Watabe
- Department of Molecular Genetics, Research Institute for Microbial Diseases, Osaka University, Suita, Osaka 565-0871, Japan
| | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
34
|
Abstract
The purpose of this study was to provide experimental evidence for orientational metaphors based on the UP-DOWN image schema. Two experiments were conducted to examine the effects of the image schema on the picture-word comparison tasks. In the experiments, subjects were required to judge if the location of kanji-target matched the word printed at the center of a reference square. Under the condition in which the location and the metaphorical orientation of the kanji-target disagree, it took longer time for judgment. These results are interpreted in terms of accessibility and availability of the image schema.
Collapse
Affiliation(s)
- K Nakamoto
- Department of Educational Psychology, School of Education, Waseda University, Nishi-Waseda, Shinjuku-ku, Tokyo 169-8050
| |
Collapse
|
35
|
Abstract
Sialyl Lewis X (SLeX) is well known as a ligand of the cell adhesion molecule E-selectin which is specifically expressed at inflammatory lesion sites. We have synthesized several SLeX-polysaccharide conjugates and examined their potential for drug delivery to inflammatory lesions. The AUC (area under the blood concentration-time curve) 0-24 h of SLeX-CMCht (1), SLeX-CMPul (2) and SLeX-DSH (3) at the inflammatory lesion was about 60-, 300-, and 30-fold higher than that of the monovalent SLeX (7), respectively. Moreover, 1 showed 2-fold higher accumulation in the inflammatory lesion than SLN-CMCht (4), and 2 showed 2.5-fold higher accumulation than SLN-CMPul (5).
Collapse
Affiliation(s)
- M Sakagami
- Drug Delivery System Institute, Ltd., Noda, Chiba, Japan.
| | | | | | | | | |
Collapse
|
36
|
Abstract
Gene-disruption studies involving poly(ADP-ribose) polymerase (Parp) have identified the various roles of Parp in cellular responses to DNA damage. The partial rescue of V[D]J recombination process in SCID/Parp(-/-) double mutant mice indicates the participation of Parp in the repair of DNA strand break. Parp(-/-) mice are more sensitive to the lethal effects of alkylating agents. Parp is also thought to be involved in base-excision repair after DNA damage caused by alkylating agents. On the other hand, resistance of Parp(-/-) mice to DNA damage induced by reactive oxygen species implicates the contribution of Parp to cell death through NAD depletion. Parp(-/-) mice with two different genetic backgrounds also show enhanced sensitivity to the lethal effects of gamma-irradiation. Parp(-/-) mice show more severe villous atrophy of the small intestine compared to the wild-type counterpart in a genetic background of 129Sv/C57BL6. Other forms of enhanced tissue damage have been identified in Parp(-/-) mice with a genetic background of 129Sv/ICR. For example, Parp(-/-) mice exhibit extensive hemorrhage in the glandular stomach and other tissues, such as the testes, after gamma-irradiation. Severe myelosuppression is also observed in both Parp(+/+) and Parp(-/-) mice, but Parp(+/+) mice show extensive extramedullary hematopoiesis in the spleen during the recovery phase of post-irradiation, whereas the spleen of Parp(-/-) mice exhibits severe atrophy with no extramedullary hematopoiesis. The absence of extramedullary hematopoiesis in the spleen is probably the underlying mechanism of hemorrhagic tendency in various tissues of Parp(-/-) mice. These findings suggest that loss of Parp activity could contribute to post-irradiation tissue hemorrhage.
Collapse
Affiliation(s)
- M Masutani
- Biochemistry Division, National Cancer Center Research Institute, 1-1 Tsukiji 5-chome, Chuo-ku, Tokyo, 104-0045, Japan.
| | | | | | | | | | | | | | | |
Collapse
|
37
|
Araki K, Harada K, Nakamoto K, Shiroma M, Miyakuni T. Clinical significance of serum soluble IL-2R levels in patients with adult T cell leukaemia (ATL) and HTLV-1 carriers. Clin Exp Immunol 2000; 119:259-63. [PMID: 10632660 PMCID: PMC1905500 DOI: 10.1046/j.1365-2249.2000.01136.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.6] [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: 11/20/2022] Open
Abstract
The levels of soluble IL-2Ralpha (sIL-2Ralpha) in serum were measured in HTLV-1 carriers and ATL patients in order to evaluate their possible correlation with clinical status. Mean sIL-2R levels in ATL patients were found to be 9704 U/ml for the acute/lymphoma type, 1961 U/ml for the chronic type and 788 U/ml for the smouldering type. The level for asymptomatic HTLV-1 carriers was 475 U/ml, and 165 U/ml for healthy young adult HTLV-1- controls. The serial measurement of sIL-2R in ATL patients, healthy HTLV-1 carriers, and HTLV-1 carriers with diseases other than ATL showed a good correlation between serum levels of sIL-2R and the pathophysiological status of disease. Furthermore, an increase in the sIL-2Ralpha level in serum indicated the exacerbation of HTLV-1 infection and autoimmune diseases. The measurement of sIL-2Ralpha levels is therefore a very useful parameter for determining disease status.
Collapse
Affiliation(s)
- K Araki
- Department of Medical Technology, School of Health Science, Faculty of Medicine, University of the Ryukyu, Japan.
| | | | | | | | | |
Collapse
|
38
|
Kataoka TR, Ito A, Asada H, Watabe K, Nishiyama K, Nakamoto K, Itami S, Yoshikawa K, Ito M, Nojima H, Kitamura Y. Annexin VII as a novel marker for invasive phenotype of malignant melanoma. Jpn J Cancer Res 2000; 91:75-83. [PMID: 10744047 PMCID: PMC5926233 DOI: 10.1111/j.1349-7006.2000.tb00862.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Both F10 and BL6 sublines of B16 mouse melanoma cells are metastatic after intravenous injection, but only BL6 cells are metastatic after subcutaneous injection. While examining the genetic difference between the two sublines, we found a marked reduction of annexin VII expression in BL6 cells. In addition, fusion cell clones of both sublines were as poorly metastatic as F10 cells after subcutaneous injection, and contained the annexin VII message as abundantly as F10 cells. Hence, we examined whether the annexin VII expression was correlated with the less malignant phenotype of clinical cases by immunohistochemistry. Immunoreactivities to anti-annexin VII antibody in melanoma cells were evaluated quantitatively by using skin mast cells as an internal positive control. Eighteen patients with malignant melanoma were divided into two groups: lymph node metastasis-negative and positive groups. The ratio of numbers of patients positive versus negative to the antibody was significantly larger in the former than in the latter group. These results not only indicated that annexin VII serves as a marker for less invasive phenotype of malignant melanoma, but also suggested a possible role of annexin VII in tumor suppression.
Collapse
Affiliation(s)
- T R Kataoka
- Department of Pathology, Osaka University Medical School, Suita
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
|
40
|
Kameyama K, Maeda M, Okamoto T, Sugita A, Hayashi E, Nakamoto K. [Stent intubation for the airway stenosis under PCPS]. Kyobu Geka 1999; 52:1078-83. [PMID: 10589185] [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: 02/14/2023]
Abstract
Placement of stents for the tracheal or carinal stenosis have a meaning of maintaining the airway. Failure of the stenting causes death. In cases of severe airway stenosis and low pulmonary function, the pulmonary support method should be performed instead of intubation and mechanical ventilation. Generally, PCPS (percutaneous cardio-pulmonary support system) is used as a pulmonary support. This method was very useful to place stents for airway stenosis. We concluded that PCPS was useful in emergency cases, and in cases of severe fixed type airway stenosis and low pulmonary function it had be on stand-by.
Collapse
Affiliation(s)
- K Kameyama
- Second Department of Surgery, Kagawa Medical University, Japan
| | | | | | | | | | | |
Collapse
|
41
|
Nakano N, Yamamura N, Kishima H, Nakamoto K. An easier way to remove mediastinal lymph nodes in left lung cancer patients. Eur J Cardiothorac Surg 1999; 16:491. [PMID: 10571106 DOI: 10.1016/s1010-7940(99)00297-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
42
|
Uemura H, Nakamoto K, Sugioka S, Tadenuma M. Isolation and sequence of the GCR3 homologue from Candida albicans by complementation of (delta)gcr3 strain of Saccharomyces cerevisiae. Yeast 1999; 15:323-7. [PMID: 10206191 DOI: 10.1002/(sici)1097-0061(19990315)15:4<323::aid-yea363>3.0.co;2-l] [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: 11/11/2022] Open
Abstract
To study the function of GCR3, a gene involved in the expression of glycolytic genes in Saccharomyces cerevisiae, a Candida albicans gene which complements the growth defect of the (delta)gcr3 mutant was isolated. Transformants of this gene also recovered the glycolytic enzyme activities. Its DNA sequencing predicted an 886 amino acid protein with 30.4% identity to the Gcr3p of S. cerevisiae.
Collapse
Affiliation(s)
- H Uemura
- Department of Molecular Biology, National Institute of Bioscience and Human-Technology, Tsukuba, Ibaraki, Japan.
| | | | | | | |
Collapse
|
43
|
Nakamoto K, Maeda M, Okamoto T, Kameyama K, Sugita A, Hayashi E. Preoperative diagnosis with video-assisted thoracoscopy with miniaturized endoscopes in general thoracic surgery: a preliminary study. Chest 1998; 114:1749-55. [PMID: 9872211 DOI: 10.1378/chest.114.6.1749] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.5] [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: 11/01/2022] Open
Abstract
Video-assisted thoracoscopy using a miniaturized endoscope (mini-VAT) was applied for preoperative diagnosis in general thoracic surgery. Thirty-one patients, including 27 with indeterminate pulmonary nodule and 4 with suspected pleural involvement of lung cancer or metastatic pleural tumor, underwent mini-VAT. As a pilot study, 14 of the former 27 patients underwent mini-VAT while receiving general anesthesia. As a prospective study, all the remaining 17 patients underwent mini-VAT while receiving local anesthesia. Solid scopes of three different sizes, 0.9, 1.9, or 4.0 mm diameter, were used. An artificial pneumothorax for scope introduction was produced by needle thoracentesis under atmospheric pressure. Automatic cutting needle biopsy was used for tissue sampling. In the pilot study group, mini-VAT with a 4.0-mm scope provided excellent visibility and diagnostic sensitivity of 100%. This study group showed the diagnostic sensitivity of needle biopsy for pulmonary nodule to be 100%. Hemorrhages and air leaks at biopsy sites were sealed with blood coagulation in a short time. In the prospective study group, mini-VAT with a 4.0-mm scope with the patients receiving local anesthesia provided a diagnostic sensitivity of 91% for pulmonary nodule and a diagnostic accuracy of 100% for suspected pleural involvement. Causes of failure of mini-VAT with the use of local anesthesia were cough reflex during needle biopsy and incomplete lung collapse for deeply located target in two cases. The adverse effects of the mini-VAT were paradoxical respiration in two cases in which local anesthesia was used. The patients who received only local anesthesia required no chest tube drainage. Mini-VAT is a simple, minimally invasive procedure suitable as a preoperative examination technique for histologic diagnosis, evaluation of disease progression, and selection of strategy in thoracic surgery.
Collapse
Affiliation(s)
- K Nakamoto
- Second Department of Surgery, Kagawa Medical School, Japan
| | | | | | | | | | | |
Collapse
|
44
|
Nakamoto K, Shiga T. Tissues exhibiting inhibitory [correction of inhibiory] and repulsive activities during the initial stages of neurite outgrowth from the dorsal root ganglion in the chick embryo. Dev Biol 1998; 202:304-14. [PMID: 9769181 DOI: 10.1006/dbio.1998.9012] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [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: 11/22/2022]
Abstract
To elucidate the mechanisms underlying the projection of dorsal root ganglion (DRG) axons into the dorsal root entry zone in the dorsolateral region of the spinal cord, we examined tissue interactions which affect neurite outgrowth from DRG. We cultured explants or dissociated cells of DRG from embryonic day 4 (E4) chick embryos in combination with E3 spinal cord, notochord, and dermomyotome in three-dimensional collagen gels. The ventral spinal cord, notochord, and dermomyotome, which are located close to the initial projection pathway of DRG but do not receive direct innervation, strongly inhibited DRG neurite outgrowth and repelled DRG neurites. These inhibitory/repulsive cues appear diffusible in nature, because this activity was observed in the absence of direct contacts between tissue explants and DRG neurites. Furthermore, in heterochronic cultures, E9 DRG lost its responsiveness to inhibitory/repulsive factors from E3 ventral spinal cord, while retaining responsiveness to E3 notochord and dermomyotome, suggesting that the E3 ventral spinal cord may secrete a different inhibitory/repulsive signal than notochord and dermomyotome. Putative inhibitory/repulsive signals secreted from tissues along the axonal pathway may serve to guide growing DRG axons to the dorsal root entry zone.
Collapse
Affiliation(s)
- K Nakamoto
- Department of Anatomy, Institute of Basic Medical Sciences, University of Tsukuba, Tsukuba, 305-8575, Japan
| | | |
Collapse
|
45
|
Abstract
A novel system for active targeting of inflammatory lesions has been established. A SLeX-CMPul conjugate (2) showed accumulation that was 2.5-fold higher in inflammatory lesions in vivo than a SLN-CMPul conjugate (4) and 300-fold higher than monovalent SLeX (6).
Collapse
Affiliation(s)
- M Sakagami
- Drug Delivery System Institute, Ltd., Chiba, Japan
| | | | | | | | | |
Collapse
|
46
|
Yamaguchi T, Nakajima Y, Miyamoto H, Mizobuchi M, Kanazu T, Kadono K, Nakamoto K, Ikeuchi I. Distribution and excretion of boron after intravenous administration of disodium mercaptoundecahydro-closo-dodecaborate to rats. J Toxicol Sci 1998; 23 Suppl 4:577-85. [PMID: 9836183 DOI: 10.2131/jts.23.supplementiv_577] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [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: 11/02/2022]
Abstract
Disodium mercaptoundecahydro-closo-dodecaborate (BSH) is an important compound for boron neutron capture therapy. The pharmacokinetics of boron by BSH were studied in normal rats after rapid intravenous injection at three doses (30, 100, 300 mg/kg) or continuous infusion (100 mg/kg/30 min). The boron concentration in biological samples was measured by inductively coupled plasma atomic emission spectroscopy. The blood half-lives of boron in the elimination phase (t1/2 beta) after rapid injection of BSH at doses of 30, 100 and 300 mg/kg were 1.7, 17 and 19 hr, respectively. AUC (32, 219 and 4030 micrograms.hr/ml) increased with the dose, but there was no proportionality among the values. Total clearance decreased drastically from 233 ml/hr/kg (100 mg/kg) to 38 ml/hr/kg (300 mg/kg). As boron was excreted mainly into urine, these results suggest that renal function failure might occur with dosing of 300 mg/kg. In the case of continuous infusion of 100 mg/kg of BSH for 30 min, the pharmacokinetic parameters were similar to those of rapid injection of 100 mg/kg. The highest boron concentration was observed in the kidney and the lowest in the brain. After multiple dosing of BSH at 100 mg/kg/day x 14 days, the boron concentrations in blood, liver, lung and kidney at 24 hr after the last dosing were higher than those after single dosing and were similar to those of simulated values calculated from the single dosing parameters. These results clearly indicated that boron does not accumulate unexpectedly in any tissue with multiple dosing of 100 mg/kg of BSH for two weeks.
Collapse
Affiliation(s)
- T Yamaguchi
- Developmental Research Laboratories, Shionogi & Co. Ltd., Osaka, Japan
| | | | | | | | | | | | | | | |
Collapse
|
47
|
Baba T, Yamashita N, Kodama H, Mukamoto M, Asada M, Nakamoto K, Nose Y, McGruder ED. Effect of tylosin tartrate (Tylan Soluble) on cellular immune responses in chickens. Poult Sci 1998; 77:1306-11. [PMID: 9733118 DOI: 10.1093/ps/77.9.1306] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Although many antimicrobial agents have been reported to cause immunosuppression in animals, macrolide antibiotics enhance immune function. Tylosin is a macrolide antibiotic approved for the control of mycoplasmosis in poultry. The purpose of this investigation was to determine the effect of tylosin on cellular immune functions in chickens. There was no significant difference in adherent splenocyte chemotaxis between tylosin-treated and untreated (control) chickens. Tylosin increased splenocyte proliferation and splenocyte conditioned medium (CM) proliferative activity above control levels. Removal of adherent splenocytes before preparation of CM caused a reduction in CM proliferative activity. Tylosin also increased antitumor activity of splenocytes. These data are the first to suggest that the macrolide antibiotic, tylosin tartrate, has a modulatory effect in chickens on the immune parameters studied.
Collapse
Affiliation(s)
- T Baba
- Department of Veterinary Immunology, College of Agriculture, Osaka Prefecture University, Sakai, Japan
| | | | | | | | | | | | | | | |
Collapse
|
48
|
Baba T, Yamashita N, Kodama H, Mukamoto M, Asada M, Nakamoto K, Nose Y, McGruder ED. Effect of tylosin tartrate on humoral immune responses in chickens. Zentralbl Veterinarmed B 1998; 45:279-86. [PMID: 9673579 DOI: 10.1111/j.1439-0450.1998.tb00795.x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
While many antimicrobial agents have been reported to cause immunosuppression in animals, macrolide antibiotics enhance the immune function. Tylosin tartrate is a macrolide antibiotic approved for the control of mycoplasmosis in poultry. The purpose of this investigation was to determine the effect of tylosin on the humoral immune functions in chickens. Three days after oral tylosin tartrate administration, 4- or 8-week-old chickens were immunized intravenously with carbolic acid-killed Brucella abortus bacterin or sheep red blood cells. Seven days (plasma antibodies titre) or 4 days (antibody forming cells) post-immunization, there was a significant increase in antibody production as well as in the numbers of antibody-producing cells in tylosin tartrate-administered chickens compared with the untreated controls. However, 3 days after tylosin tartrate administration, there was no difference in the distribution of T-lymphocyte subpopulations (CD4 or CD8 positive cells) or B lymphocytes (surface immunoglobulin positive cells) in either the peripheral blood or spleens or untreated control chickens.
Collapse
Affiliation(s)
- T Baba
- Department of Veterinary Immunology, College of Agriculture, Osaka Prefecture University, Japan
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Kishimoto Y, Wada K, Nakamoto K, Kawasaki H, Hasegawa J. Levels of cyclooxygenase-1 and -2 mRNA expression at various stages of acute gastric injury induced by ischemia-reperfusion in rats. Arch Biochem Biophys 1998; 352:153-7. [PMID: 9521828 DOI: 10.1006/abbi.1997.0572] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.3] [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: 11/22/2022]
Abstract
Recently, the state of cyclooxygenase (COX) mRNA expression has been reported in an acetic acid-induced chronic gastric ulcer model of mice. However, the time course of COX expression during the developmental stage and the subsequent repair process of acute gastric injury is not well understood at present. In this study, we quantitatively investigated the time course of the level of COX-2 and -1 mRNA expression from the developmental stage through the healing stage in ischemia-reperfusion (I-R)-induced acute gastric damage. COX-2 mRNA was expressed at low or undetectable levels in the normal gastric tissues of control rats. The COX-2 expression between 6 and 48 h following I-R was higher than that of the control gastric tissues; the histological findings were erosion during 1-36 h and transitional appearance from erosion to ulcer at 48 h. The maximum expression of COX-2 mRNA was recorded at 24 h (approximately 200-fold elevation). The COX-2 message was very low or undetectable at 72 h (ulcer stage) and at 96 and 120 h (healing stage of ulcer) after I-R. The level of COX-1 mRNA remained stable through all stages of acute gastric damage. These results are potentially useful for understanding the role of COX and evaluating the effects of drugs on expression of COX at various stages of acute gastric injury.
Collapse
Affiliation(s)
- Y Kishimoto
- Faculty of Medicine, Tottori University, 86 Nishimachi, Yonago, 683, Japan
| | | | | | | | | |
Collapse
|
50
|
Wada K, Kamisaki Y, Ohkura T, Kanda G, Nakamoto K, Kishimoto Y, Ashida K, Itoh T. Direct measurement of nitric oxide release in gastric mucosa during ischemia-reperfusion in rats. Am J Physiol 1998; 274:G465-71. [PMID: 9530146 DOI: 10.1152/ajpgi.1998.274.3.g465] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Nitric oxide (NO) generation in the rat gastric mucosa during ischemia-reperfusion was measured using an NO-sensitive electrode. Under pentobarbital sodium anesthesia, an electrode was inserted into the submucosa from the serous membrane side in the fundus. After steady-state baseline recording, the celiac artery was clamped for 30 min, and then ischemia-reperfusion was achieved by removing the clamp. The clamping of the celiac artery caused a decrease in blood flow and an increase in NO level in the gastric tissue. Just after the removal of the clamp, the NO level rapidly fell and returned to the baseline level. Administration of NG-nitro-L-arginine methyl ester (an NO synthase inhibitor, 30 mg/kg i.p.) before ischemia significantly attenuated both the increase in NO level during ischemia and the formation of acute gastric mucosal lesions observed after 60 min reperfusion. Administration of superoxide dismutase (a superoxide radical scavenger, 10,000 U/kg i.v.) at the end of ischemia inhibited both the rapid decrease in NO level during the reperfusion and the gastric mucosal erosions. Because NO and superoxide radical produce a highly reactive peroxynitrite, it can be argued that NO has an important pathological role in acute gastric mucosal injury induced by ischemia-reperfusion. Our conclusion was strongly supported by immunohistochemical staining of nitrotyrosine residues, an indication of peroxynitrite formation.
Collapse
Affiliation(s)
- K Wada
- Department of Clinical Pharmacology, Faculty of Medicine, Tottori University, Yonago, Japan
| | | | | | | | | | | | | | | |
Collapse
|