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Matsumoto T, Kaneko A, Fujiki T, Kusakabe Y, Nakayama E, Tanaka A, Yamamoto N, Tashima M, Ito C, Aihara K, Yamaoka S, Mishima M. One-day systemic corticosteroid administration for asthma and future "short bursts" risk in real clinical practice. J Asthma 2023; 60:1951-1959. [PMID: 37042221 DOI: 10.1080/02770903.2023.2200854] [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] [Received: 07/18/2022] [Revised: 03/27/2023] [Accepted: 04/05/2023] [Indexed: 04/13/2023]
Abstract
OBJECTIVE Systemic corticosteroid administration, also called short bursts (SB), is harmful for patients with asthma; however, the actual burden of one-day SB remains unsolved. This study aimed to elucidate the characteristics of patients requiring one-day SB against asthma in clinical practice. METHODS Consecutive patients who regularly visited our hospital for asthma treatment between January 2019 and December 2020 were reviewed and followed for one year. SB was defined as ≥3 days of systemic corticosteroid treatment for an exacerbation. One-day SB was defined as one-day of systemic corticosteroid to treat an exacerbation. The one-day SB group included patients who received only one-day SB but no SB during the preceding year. Frequent SB was defined as that occurring ≥2 times/year. RESULTS Data on 229 patients were analyzed. Among them, 2.6% (95% confidence interval 1.2-5.6%) were in the one-day SB group. The one-day SB group was female-dominant, obese, non-eosinophilic, and non-atopic. The median one-day SB was 1.5 times/year and almost half of one-day SB were performed by patients themselves. Independent of the low pulmonary function, high blood eosinophil count, and inhaled corticosteroid dose, one-day SB was associated with future frequent SB (adjusted odds ratio = 18.2, 95% confidence interval 1.1-288, P = 0.040, compared to the no SB group). CONCLUSIONS Although one-day SB was not frequently experienced, even one-day SB without conventional SB was associated with future frequent SB. It is important to grasp the actual condition of one-day SB and to reinforce the treatment used.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Akiko Kaneko
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Takahiro Fujiki
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Yusuke Kusakabe
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Emi Nakayama
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Ayaka Tanaka
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Naoki Yamamoto
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Mayuko Tashima
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Chikara Ito
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Kensaku Aihara
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Shinpachi Yamaoka
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Michiaki Mishima
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
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2
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Matsumoto T, Kaneko A, Fujiki T, Kusakabe Y, Nakayama E, Tanaka A, Yamamoto N, Aihara K, Yamaoka S, Mishima M. Impact of adding pethidine on disinhibition during bronchoscopy with midazolam: a propensity score matching analysis. Respir Investig 2023; 61:409-417. [PMID: 37099892 DOI: 10.1016/j.resinv.2023.03.010] [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] [Received: 12/20/2022] [Revised: 03/10/2023] [Accepted: 03/23/2023] [Indexed: 04/28/2023]
Abstract
BACKGROUND We sometimes experience disinhibition during bronchoscopy with sedation. However, the impact of adding pethidine on disinhibition has not yet been investigated. This study aimed to examine the additive impact of pethidine on disinhibition during bronchoscopy with midazolam. METHODS This retrospective study involved consecutive patients who underwent bronchoscopy between November 2019 and December 2020 (sedated with midazolam: Midazolam group) and between December 2020 and December 2021 (sedated with midazolam plus pethidine: Combination group). The severity of disinhibition was defined as follows: moderate, disinhibition that always needed restraints by assistants; and severe, disinhibition that needed antagonization of sedation by flumazenil to continue bronchoscopy. One-to-one propensity score matching was used to match baseline characteristics between both groups. RESULTS After propensity score matching with depression, the type of bronchoscopic procedure, and the dose of midazolam, 142 patients matched in each group. The prevalence of moderate-to-severe disinhibition significantly decreased from 16.2% to 7.8% (P = 0.028) in the Combination group. The Combination group had significantly better scores for sensation after bronchoscopy and feelings toward bronchoscopy duration than did the Midazolam group. Although the minimum SpO2 during bronchoscopy was significantly lower (88.0 ± 6.2 mmHg vs. 86.7 ± 5.0 mmHg, P = 0.047) and the percentage of oxygen supplementation significantly increased (71.1% vs. 86.6%, P = 0.001) in the Combination group, no fatal complications were observed. CONCLUSIONS Adding pethidine could reduce disinhibition occurrence in patients undergoing bronchoscopy with midazolam, with better subjective patient outcomes during and after bronchoscopy. However, whether more patients may need oxygen supplementation and whether hypoxia occurs during bronchoscopy should be considered. CLINICAL TRIAL REGISTRATION UMIN000042635.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan.
| | - Akiko Kaneko
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Takahiro Fujiki
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Yusuke Kusakabe
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Emi Nakayama
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Ayaka Tanaka
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Naoki Yamamoto
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Kensaku Aihara
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Shinpachi Yamaoka
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
| | - Michiaki Mishima
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Osaka, Japan
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3
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Matsumoto T, Sakurai Y, Fujiki T, Kusakabe Y, Nakayama E, Tanaka A, Yamamoto N, Aihara K, Yamaoka S, Mishima M. Allergy to Omalizumab: Lessons from a Reaction to the Coronavirus 2019 Vaccine. Intern Med 2023; 62:1219-1222. [PMID: 36725035 PMCID: PMC10183271 DOI: 10.2169/internalmedicine.1169-22] [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: 02/03/2023] Open
Abstract
Omalizumab can cause hypersensitivity reactions. We herein report the first case of an 18-year-old woman with refractory cough-predominant asthma that correlated with allergic reactions caused by omalizumab and the coronavirus disease 2019 (COVID-19) vaccine. The patient developed angioedema after taking omalizumab. She had previously experienced intense coughing immediately after receiving a COVID-19 vaccine. A skin prick test was positive for polysorbate 20, which was probably the cause of the allergic reactions to omalizumab and the COVID-19 vaccine. Clinicians should check for an allergic reaction, irrespective of its intensity, triggered by polysorbate and be careful when prescribing biologics to patients in order to avoid allergic reactions.
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Affiliation(s)
| | - Yumiko Sakurai
- Department of Dermatology, Saiseikai-Noe Hospital, Japan
| | - Takahiro Fujiki
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | - Yusuke Kusakabe
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | - Emi Nakayama
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | - Ayaka Tanaka
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | - Naoki Yamamoto
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | - Kensaku Aihara
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
| | | | - Michiaki Mishima
- Department of Respiratory Medicine, Saiseikai-Noe Hospital, Japan
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4
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Matsumoto T, Kaneko A, Kusakabe Y, Nakayama E, Tanaka A, Yamamoto N, Aihara K, Yamaoka S, Mishima M. Severe eosinophilia and subsequent dermatologic immune‐related adverse event with squamous cell carcinoma antigen elevation induced by nivolumab and ipilimumab. Respirol Case Rep 2022; 10:e01037. [PMID: 36176718 PMCID: PMC9459412 DOI: 10.1002/rcr2.1037] [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: 06/24/2022] [Accepted: 08/30/2022] [Indexed: 11/21/2022] Open
Abstract
Immune checkpoint inhibitors (ICIs) for malignant lesions are associated with immune‐related adverse events (irAEs), but reports about severe eosinophilia induced by ICIs are scarce. A 73‐year‐old man with lung squamous cell carcinoma was treated by chemotherapy (carboplatin plus paclitaxel) and ICIs (nivolumab plus ipilimumab). After two cycles of chemotherapy, the ICIs were continued. After 5 months, the eosinophilia, which had exceeded 5000/μl, increasingly deteriorated, and the only detected irAE was a grade 1 rash. Under continuation of the ICIs, although the eosinophilia decreased, a grade 3 rash and severe pruritis subsequently appeared. Squamous cell carcinoma antigen (SCCA) was steeply increased simultaneously. A complete response had been achieved, and oral prednisolone markedly improved the rash, pruritis, and eosinophilia. Clinicians should be aware that precedent severe eosinophilia and subsequent severe irAE could occur in patients treated by nivolumab and ipilimumab, and SCCA elevation could be associated with dermatologic irAE.
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Affiliation(s)
- Takeshi Matsumoto
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Akiko Kaneko
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Yusuke Kusakabe
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Emi Nakayama
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Ayaka Tanaka
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Naoki Yamamoto
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Kensaku Aihara
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Shinpachi Yamaoka
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
| | - Michiaki Mishima
- Department of Respiratory Medicine Saiseikai‐Noe Hospital Osaka Japan
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5
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Pawestri A, Padungsombat J, Deesitthivech O, Nakayama E, Shioda T, Moonsom S. Blastocystis spp. Subtype Distribution from Human and Animals at the Thai-Myanmar Border: The Public Health Implication. Int J Infect Dis 2022. [DOI: 10.1016/j.ijid.2021.12.190] [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: 11/29/2022] Open
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6
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Xing J, Pan H, Lin H, Nakanishi R, Hirabayashi T, Nakayama E, Ma X, Maeshige N, Kondo H, Fujino H. Protective effects of chlorogenic acid on capillary regression caused by disuse muscle atrophy. Biomed Res 2021; 42:257-264. [PMID: 34937825 DOI: 10.2220/biomedres.42.257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Inactivity causes muscle atrophy and capillary regression in skeletal muscle. Chlorogenic acid has an antioxidant capacity and may prevent capillary regression. Therefore, the protective effects of chlorogenic acid on inactivity-induced capillary regression in rat soleus muscle were investigated. Twenty male Wistar rats were randomly divided into four groups: control (CON), chlorogenic acid supplementation (CGA), 2-week hindlimb unloading (HU), 2-week hindlimb unloading plus chlorogenic acid supplementation (HU+CGA). The rats in CGA and HU+CGA groups were orally administrated chlorogenic acid (850 mg/kg/day). Unloading resulted in a decrease in capillary number, oxidative capacity, and an increase in oxidative stress of the soleus muscle, whereas chlorogenic acid supplementation prevented capillary and metabolic changes resulting from unloading by reducing oxidative stress. In conclusion, chlorogenic acid supplementation may qualify as an effective treatment to reduce capillary regression in skeletal muscle caused by disuse muscle atrophy.
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Affiliation(s)
- Jihao Xing
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Han Pan
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Hao Lin
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Ryosuke Nakanishi
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Takumi Hirabayashi
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Emi Nakayama
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Xiaoqi Ma
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Noriaki Maeshige
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
| | - Hiroyo Kondo
- Department of Food Science and Nutrition, Nagoya Women's University
| | - Hidemi Fujino
- Department of Rehabilitation Science, Kobe University Graduate School of Health Sciences
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7
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Hashimoto S, Yoshizaki K, Uno K, Kitajima H, Arai T, Tamura Y, Morishita H, Matsuoka H, Han Y, Minamoto S, Hirashima T, Yamada T, Kashiwa Y, Kameda M, Yamaguchi S, Tsuchihashi Y, Iwahashi M, Nakayama E, Shioda T, Nagai T, Tanaka T. Prompt Reduction in CRP, IL-6, IFN-γ, IP-10, and MCP-1 and a Relatively Low Basal Ratio of Ferritin/CRP Is Possibly Associated With the Efficacy of Tocilizumab Monotherapy in Severely to Critically Ill Patients With COVID-19. Front Med (Lausanne) 2021; 8:734838. [PMID: 34631752 PMCID: PMC8494777 DOI: 10.3389/fmed.2021.734838] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2021] [Accepted: 08/18/2021] [Indexed: 12/15/2022] Open
Abstract
Background and Aim: Tocilizumab, a humanized anti-IL-6 receptor antibody, has been used to treat severely to critically ill patients with COVID-19. A living systematic review with meta-analysis of recent RCTs indicates that the combination therapy of corticosteroids and tocilizumab produce better outcomes, while previous observational studies suggest that tocilizumab monotherapy is beneficial for substantial numbers of patients. However, what patients could respond to tocilizumab monotherapy remained unknown. Methods: In this retrospective study we evaluated the effects of tocilizumab monotherapy on the clinical characteristics, serum biomediator levels, viral elimination, and specific IgG antibody induction in 13 severely to critically ill patients and compared with those of dexamethasone monotherapy and dexamethasone plus tocilizumab. Results: A single tocilizumab administration led to a rapid improvement in clinical characteristics, inflammatory findings, and oxygen supply in 7 of 11 patients with severe COVID-19, and could recover from mechanical ventilation management (MVM) in 2 patients with critically ill COVID-19. Four patients exhibited rapidly worsening even after tocilizumab administration and required MVM and additional methylprednisolone treatment. Tocilizumab did not delay viral elimination or inhibit IgG production specific for the virus, whereas dexamethasone inhibited IgG induction. A multiplex cytokine array system revealed a significant increase in the serum expression of 54 out of 80 biomediators in patients with COVID-19 compared with that in healthy controls. Compared with those who promptly recovered in response to tocilizumab, patients requiring MVM showed a significantly higher ratio of basal level of ferritin/CRP and a persistent increase in the levels of CRP and specific cytokines and chemokines including IL-6, IFN-γ, IP-10, and MCP-1. The basal high ratio of ferritin/CRP was also associated with clinical deterioration even in patients treated with dexamethasone and tocilizumab. Conclusion: Tocilizumab as monotherapy has substantial beneficial effects in some patients with severe COVID-19, who showed a relatively low level of the ratio of ferritin/CRP and prompt reduction in CRP, IL-6, IFN-γ, IP-10, and MCP-1. The high ratio of ferritin/CRP is associated with rapid worsening of pneumonia. Further evaluation is warranted to clarify whether tocilizumab monotherapy or its combination with corticosteroid is preferred for severely to critically ill patients with COVID-19.
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Affiliation(s)
- Shoji Hashimoto
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Kazuyuki Yoshizaki
- Department of Organic Fine Chemicals, Institute of Scientific and Industry Research, Osaka University, Osaka, Japan
| | - Kazuko Uno
- Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto, Japan
| | - Heita Kitajima
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Tsuyoshi Arai
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Yoshitaka Tamura
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Hiroshi Morishita
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Hiroto Matsuoka
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Yuki Han
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Seijiro Minamoto
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Tomonori Hirashima
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Tomoki Yamada
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Yozo Kashiwa
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Makoto Kameda
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Seiji Yamaguchi
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Yasunari Tsuchihashi
- Division of Basic Research, Louis Pasteur Center for Medical Research, Kyoto, Japan
| | | | - Emi Nakayama
- Department of Viral Infection, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Tatsuo Shioda
- Department of Viral Infection, Research Institute for Microbial Diseases, Osaka University, Osaka, Japan
| | - Takayuki Nagai
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
| | - Toshio Tanaka
- Osaka Prefectural Hospital Organization Osaka Habikino Medical Center, Osaka, Japan
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8
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Kondo H, Amano H, Fujisawa A, Mizushima A, Nisa BU, Nakayama E, Fujino H. Effects Of Mild Hyperbaric Oxygen Exposure On Breath Acetone And Urine Ketones Levels In Young Women. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000765000.16985.9b] [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: 11/21/2022]
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9
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Fujino H, Amano H, Fujisawa A, Mizushima A, Nisa BU, Nakayama E, Kondo H. Mild Hyperbaric Oxygen Exposure Increases Cd16dim-cd56bright Natural Killer Cells In Healthy Individuals. Med Sci Sports Exerc 2021. [DOI: 10.1249/01.mss.0000764996.55571.63] [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: 11/21/2022]
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10
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Imad HA, Phumratanaprapin W, Phonrat B, Chotivanich K, Charunwatthana P, Muangnoicharoen S, Khusmith S, Tantawichien T, Phadungsombat J, Nakayama E, Konishi E, Shioda T. Cytokine Expression in Dengue Fever and Dengue Hemorrhagic Fever Patients with Bleeding and Severe Hepatitis. Am J Trop Med Hyg 2020; 102:943-950. [PMID: 32124729 PMCID: PMC7204576 DOI: 10.4269/ajtmh.19-0487] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [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] [Indexed: 12/23/2022] Open
Abstract
Dengue is the most common mosquito-borne flaviviral infection in the world today. Several factors contribute and act synergistically to cause severe infection. One of these is dysregulated host immunological mediators that cause transient pathophysiology during infection. These mediators act on the endothelium to increase vascular permeability, which leads to plasma leakage compromising hemodynamics and coagulopathy. We conducted a prospective study to explore the expression of pro- and anti-inflammatory cytokines and how they relate to clinical dengue manifestations, by assessing their dynamics through acute dengue infection in adults admitted to the Hospital for Tropical Diseases, Bangkok, Thailand. We performed cytokine analysis at three phases of infection for 96 hospitalized adults together with serotyping of confirmed dengue infection during the outbreaks of 2015 and 2016. The serum concentrations of seven cytokines (interleukin [IL]-2, IL-4, IL-6, IL-8, IL-10, tumor necrosis factor alpha, and interferon gamma) were measured in duplicate using a commercial kit (Bio-Plex Human Cytokine Assay). In this study, the cytokine profile was suggestive of a T-helper 2 response. Most patients had secondary infection, and the levels of viremia were higher in patients with plasma leakage than those without plasma leakage. In addition, we observed that bleeding and hepatitis were associated with significantly higher levels of IL-8 during the early phases of infection. Furthermore, IL-6 levels in the early phase of infection were also elevated in bleeding patients with plasma leakage. These results suggest that IL-6 and IL-8 may act in synergy to cause bleeding in patients with plasma leakage.
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Affiliation(s)
- Hisham Ahmed Imad
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Weerapong Phumratanaprapin
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Benjaluck Phonrat
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Kesinee Chotivanich
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Prakaykaew Charunwatthana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Sant Muangnoicharoen
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Srisin Khusmith
- Department of Microbiology and Immunology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Terapong Tantawichien
- Division of Infectious Diseases, Department of Medicine, Chulalongkorn University, Bangkok, Thailand
| | - Juthamas Phadungsombat
- Mahidol-Osaka Center for Infectious Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Emi Nakayama
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Mahidol-Osaka Center for Infectious Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Eiji Konishi
- BIKEN Endowed Department of Dengue Vaccine Development, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
| | - Tatsuo Shioda
- Research Institute for Microbial Diseases, Osaka University, Osaka, Japan.,Mahidol-Osaka Center for Infectious Diseases, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand
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11
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Uttayamakul S, Reawrang S, Nitiyanontakij R, Phadungsombat J, Nakayama E, Suttha P, Moolasart V, Shioda T. Molecular Characteristics of Dengue Viruses in Patients Hospitalized at the Bamrasnaradura Infectious Diseases Institute, Thailand. Jpn J Infect Dis 2020; 73:411-420. [PMID: 32475871 DOI: 10.7883/yoken.jjid.2020.063] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 11/17/2022]
Abstract
Dengue virus (DENV), one of the rapidly spreading mosquito-borne pathogens, causes acute febrile illness with various clinical symptoms. Four DENV serotypes are known, designated DENV-1 to 4. We previously determined whole-genome sequences of 21 DENV isolates during 2016-2017 and reported the emergence of the Cosmopolitan genotype of DENV-2 and genotype III of DENV-3 in Thailand. The objective of this study, conducted in 2018 at the Bamrasnaradura Infectious Diseases Institute, was to study the prevalence of DENV genotype. A total of 100 patients, hospitalized with severe dengue infection, were enrolled with written informed consent. Serum specimens were tested by multiplex real-time reverse transcription-polymerase chain reaction. Among them, 94 were DENV-positive, with 46 DENV-1, 38 DENV-2, 10 DENV-4, and no DENV-3 cases. Nucleotide sequence of DENV gene for envelope-protein was determined in 73 cases. Genotyping of the sequences revealed 40 cases with DENV-1 genotype I, 26 with DENV-2, that included 18 of Cosmopolitan and 8 Asian I genotypes, and 7 with DENV-4 genotype I. DENV-1 was the most prevalent in this study, and the frequency of DENV-2 Cosmopolitan genotype appears to have increased since our previous study, indicating that genotypic diversity of DENV is increasing in Thailand.
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Affiliation(s)
- Sumonmal Uttayamakul
- Bamrasnaradura Infectious Diseases Institute, Department of Disease Control, Ministry of Public Health, Thailand
| | - Sarinee Reawrang
- Bamrasnaradura Infectious Diseases Institute, Department of Disease Control, Ministry of Public Health, Thailand
| | - Ravee Nitiyanontakij
- Bamrasnaradura Infectious Diseases Institute, Department of Disease Control, Ministry of Public Health, Thailand
| | - Juthamas Phadungsombat
- Mahidol-Osaka Center for Infectious Diseases (MOCID), Faculty of Tropical Medicine, Mahidol University, Thailand
| | - Emi Nakayama
- Mahidol-Osaka Center for Infectious Diseases (MOCID), Faculty of Tropical Medicine, Mahidol University, Thailand.,Research Institute for Microbial Diseases, Osaka University, Japan
| | - Patama Suttha
- Bamrasnaradura Infectious Diseases Institute, Department of Disease Control, Ministry of Public Health, Thailand
| | - Visal Moolasart
- Bamrasnaradura Infectious Diseases Institute, Department of Disease Control, Ministry of Public Health, Thailand
| | - Tatsuo Shioda
- Mahidol-Osaka Center for Infectious Diseases (MOCID), Faculty of Tropical Medicine, Mahidol University, Thailand.,Research Institute for Microbial Diseases, Osaka University, Japan
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12
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Jain J, Okabayashi T, Kaur N, Nakayama E, Shioda T, Gaind R, Kurosu T, Sunil S. Evaluation of an immunochromatography rapid diagnosis kit for detection of chikungunya virus antigen in India, a dengue-endemic country. Virol J 2018; 15:84. [PMID: 29751761 PMCID: PMC5948817 DOI: 10.1186/s12985-018-1000-0] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [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: 02/08/2018] [Accepted: 05/07/2018] [Indexed: 11/11/2022] Open
Abstract
Background Chikungunya virus (CHIKV) and dengue virus (DENV) are arboviruses that share the same Aedes mosquito vector, and there is much overlap in endemic areas. In India, co-infection with both viruses is often reported. Clinical manifestations of Chikungunya fever is often confused with dengue fever because clinical symptoms of both infections are similar. It is, therefore, difficult to differentiate from those of other febrile illnesses, especially dengue fever. We previously developed a CHIKV antigen detection immunochromatography (IC) rapid diagnosis kit [1]. The current study examined the efficacy of previously mentioned IC kit in India, a dengue-endemic country. Methods Sera from 104 CHIKV-positive (by qRT-PCR) and/or IgM-positive (ELISA) subjects collected in 2016, were examined. Fifteen samples from individuals with CHIKV-negative/DENV-positive and 4 samples from healthy individuals were also examined. Of the 104 CHIKV-positive sera, 20 were co-infected with DENV. Results The sensitivity, specificity and overall agreement of the IC assay were 93.7, 95.5 and 94.3%, respectively, using qRT-PCR as a gold standard. Also, there was a strong, statistically significant positive correlation between the IC kit device score and the CHIKV RNA copy number. The IC kit detected CHIKV antigen even in DENV-co-infected patient sera and did not cross-react with DENV NS1-positive/CHIKV-negative samples. Conclusions The results suggest that the IC kit is useful for rapid diagnosis of CHIKV in endemic areas in which both CHIKV and DENV are circulating. Electronic supplementary material The online version of this article (10.1186/s12985-018-1000-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Jaspreet Jain
- Vector Borne Disease Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
| | - Tamaki Okabayashi
- Department of Veterinary science, Faculty of Agriculture, University of Miyazaki, Musashimurayama, Japan.,Center for Animal Disease Control, University of Miyazaki, Musashimurayama, Japan.,Mahidol Osaka Center for Infectious Diseases, Osaka University, Musashimurayama, Japan
| | - Navjot Kaur
- Department of Microbiology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India
| | - Emi Nakayama
- Research Institute of Microbial Diseases, Osaka University, Osaka, Japan
| | - Tatsuo Shioda
- Mahidol Osaka Center for Infectious Diseases, Osaka University, Musashimurayama, Japan.,Research Institute of Microbial Diseases, Osaka University, Osaka, Japan
| | - Rajni Gaind
- Department of Microbiology, Vardhman Mahavir Medical College & Safdarjung Hospital, New Delhi, India.
| | - Takeshi Kurosu
- Special Pathogens Laboratory, Department of Virology 1, National Institute of Infectious Diseases, 4-7-1 Gakuen Musashimurayama, Musashimurayama, Japan.
| | - Sujatha Sunil
- Vector Borne Disease Group, International Centre for Genetic Engineering and Biotechnology, New Delhi, India.
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Ohue Y, Kurose K, Isobe M, Fukuda M, Nakayama E, Oka M. P2.07-018 Correlation of Clinical Response and XAGE1 Immunity in Lung Adenocarcinoma. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Kurose K, Ohue Y, Isobe M, Suzuki S, Wada H, Ueda R, Nakayama E, Oka M. P2.07-015 Reviving Chemotherapy Sensitivity after Anti-CCR4 mAb (Mogamulizumab) Treatment in Lung Cancer Patients. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.11.074] [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: 11/16/2022]
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15
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Asanuma M, Miyazaki I, Isooka N, Kikuoka R, Wada K, Nakayama E, Shin K, Yamamoto D, Kitamura Y. Neuroprotective effects of rotigotine against dopaminergic neurodegeneration by targeting astrocytes. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.617] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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16
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Nakayama E, Tohara H, Sakai K, Hayata M, Ohnishi S, Sekino J, Tsuzuki H, Hirai T, Hayashi A, Ueda K. Predictive Factors Associated with Oral Intake Ability in Gastrostomy Patients Under Long-Term Care. J Nutr Health Aging 2017; 21:715-720. [PMID: 28537338 DOI: 10.1007/s12603-016-0796-9] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
OBJECTIVE To determine the physical indicators associated with oral intake status and swallowing function in gastrostomy patients under long-term care. DESIGN Cross-sectional study. SETTING Thirty-one hospitals that perform gastrostomy insertion, replacement and management. PARTICIPANTS A total of 117 respondents from 31 hospitals in Japan underwent gastrostomy tube replacement and management between September 2012 and January 2014. Each participant underwent a gastrostomy at least 6 months prior to the study, and received long-term care either at home, a care facility, or a hospital. MEASUREMENTS We conducted a questionnaire survey at Japanese hospitals and used the data obtained from 117 respondents for analysis. The survey was conducted using a questionnaire form that collected information about the following items: oral intake status, sex, age, disease history, number of days elapsed since gastrostomy, residence status, modified Rankin Scale score, consciousness, oral hygiene status, articulation and phonation, voluntary saliva swallow, Modified Water Swallow Test, and Food Test. RESULTS Results revealed significant differences in modified Rankin Scale scores, sputum production, articulation and phonation, and voluntary saliva swallowing between patients who were orally fed and those who were not. Moreover, sputum production and voluntary saliva swallowing were strongly associated with oral intake status. Finally, sputum production, articulation and phonation, and voluntary saliva swallowing were strongly associated with swallowing function test results. CONCLUSION Results from this study suggested that sputum production, articulation and phonation, and voluntary saliva swallowing could be used as indicators for estimating oral intake status and swallowing function in gastrostomy patients under long-term care.
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Affiliation(s)
- E Nakayama
- Enri Nakayama, Nihon University School of Dentistry, Japan,
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17
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Goto TK, Yoshiura K, Nakayama E, Yuasa K, Tabata O, Nakano T, Kawazu T, Tanaka T, Miwa K, Shimizu M, Chikui T, Okamura K, Kanda S. The combined use of US and MR imaging for the diagnosis of masses in the parotid region. Acta Radiol 2016; 42:88-95. [PMID: 11167339 DOI: 10.1080/028418501127346305] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [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: 10/26/2022]
Abstract
Purpose: To evaluate the usefulness of the combination of the two non-invasive modalities US and MR imaging to diagnose masses in the parotid region. Material and Methods: The US and MR findings of 21 patients with parotid masses were analyzed retrospectively by two radiologists without any clinical or histopathological information. The specific points evaluated were location, shape, margin, internal architecture, and intensity level on both US and MR, posterior echo enhancement on US, and capsule-like lining of the tumor on MR. Results: The findings concerning the shape and margin on US and MR were in fairly good agreement. Concerning the findings of the internal architecture, US could reveal the minute structures of the tumor while MR demonstrated differences in the signal intensities of histological tissue types of the various tumors. The posterior echo enhancement on US and the capsule-like lining on MR of the tumors were also useful for the diagnosis. Conclusion: Our results suggest that the combination of US and MR is useful for examining soft tissue masses in the parotid region to make a more accurate diagnosis, and not just differentiate malignant lesions from those which are benign.
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Affiliation(s)
- T K Goto
- Department of Oral and Maxillofacial Pathophysiology, Faculty of Dentistry, Kyushu University, Fukuoka, Japan
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18
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Uechi J, Tsuji Y, Konno M, Hayashi K, Shibata T, Nakayama E, Mizoguchi I. Generation of virtual models for planning orthognathic surgery using a modified multimodal image fusion technique. Int J Oral Maxillofac Surg 2015; 44:462-9. [DOI: 10.1016/j.ijom.2014.11.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2013] [Revised: 07/29/2014] [Accepted: 11/07/2014] [Indexed: 11/16/2022]
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19
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Nakayama E, Tohara H, Hino T, Sato M, Hiraba H, Abe K, Ueda K. The effects of ADL on recovery of swallowing function in stroke patients after acute phase. J Oral Rehabil 2014; 41:904-11. [PMID: 25041090 DOI: 10.1111/joor.12212] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/15/2014] [Indexed: 11/29/2022]
Abstract
This study aimed to examine the association between the degree of recovery from dysphagia and changes in functional independence measure (FIM) items in stroke patients after acute phase by conducting a historical cohort study, because none explains the effects of activities of daily living (ADL) on recovery of swallowing function. Study patients included hospitalised stroke patients after acute phase in whom dysphagia was confirmed (n = 72). Change in nutritional intake method score was examined for association with age, days from stroke onset to admission, length of hospital stay and change in FIM score. Moreover, to examine characteristics of patients who were removed from tube feeding, all patients who required tube feeding at the time of admission were divided into two groups comprising those who required tube feeding at discharge and those who did not. A significant and positive association was observed between change in nutritional intake method and FIM for all items other than self-care of bathing, locomotion of stairs and problem solving. Patients who were removed from tube feeding were significantly younger than those who required tube feeding at the time of discharge (P < 0.041) and also showed significantly higher FIM scores for transfer and all cognitive FIM items at the time of admission (P < 0.05). This study demonstrated that nutritional intake methods improve in conjunction with FIM improvements in patients with dysphagia following the acute phase of stroke. Our results suggest that the age and cognitive function may influence the recovery of patient ability of oral intake.
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Affiliation(s)
- E Nakayama
- Department of Dysphagia Rehabilitation, Nihon University School of Dentistry, Tokyo, Japan
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20
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Pandey JP, Namboodiri AM, Ohue Y, Oka M, Nakayama E. Genetic variants of immunoglobulin γ and κ chains influence humoral immunity to the cancer-testis antigen XAGE-1b (GAGED2a) in patients with non-small cell lung cancer. Clin Exp Immunol 2014; 176:78-83. [PMID: 24304136 DOI: 10.1111/cei.12247] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/30/2013] [Indexed: 01/01/2023] Open
Abstract
GM (γ marker) allotypes, genetic variants of immunoglobulin γ chains, have been reported to be associated strongly with susceptibility to lung cancer, but the mechanism(s) underlying this association is not known. One mechanism could involve their contribution to humoral immunity to lung tumour-associated antigens. In this study, we aimed to determine whether particular GM and KM (κ marker) allotypes were associated with antibody responsiveness to XAGE-1b, a highly immunogenic lung tumour-associated cancer-testis antigen. Sera from 89 patients with non-small cell lung cancer (NSCLC) were allotyped for eight GM and two KM determinants and characterized for antibodies to a synthetic XAGE-1b protein. The distribution of various GM phenotypes was significantly different between XAGE-1b antibody-positive and -negative patients (P = 0·023), as well as in the subgroup of XAGE-1b antigen-positive advanced NSCLC (P = 0·007). None of the patients with the GM 1,17 21 phenotype was positive for the XAGE-1b antibody. In patients with antigen-positive advanced disease, the prevalence of GM 1,2,17 21 was significantly higher in the antibody-positive group than in those who lacked the XAGE-1b antibody (P = 0·026). This phenotype also interacted with a particular KM phenotype: subjects with GM 1,2,17 21 and KM 3,3 phenotypes were almost four times (odds ratio = 3·8) as likely to be positive for the XAGE-1b antibody as the subjects who lacked these phenotypes. This is the first report presenting evidence for the involvement of immunoglobulin allotypes in immunity to a cancer-testis antigen, which has important implications for XAGE-1b-based immunotherapeutic interventions in lung adenocarcinoma.
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Affiliation(s)
- J P Pandey
- Department of Microbiology and Immunology, Medical University of South Carolina, Charleston, SC, USA
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21
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Kato N, Kinugawa K, Nakayama E, Tsuji T, Kumagai Y, Hatano M, Yao A, Jaarsma T, Komuro I, Nagai R. Insufficient self-care is an independent risk factor for cardiac events in Japanese patients with heart failure: a 2-year follow-up study. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht308.1614] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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22
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Nakayama E, Tohara H, Hiraba H, Sanpei R, Wakasa H, Ohno S, Kumakura A, Gora K, Abe K, Ueda K. Effects of reclining posture on velopharyngeal closing pressure during swallowing and phonation. J Oral Rehabil 2013; 40:450-6. [DOI: 10.1111/joor.12050] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/08/2013] [Indexed: 12/01/2022]
Affiliation(s)
- E. Nakayama
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - H. Tohara
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - H. Hiraba
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - R. Sanpei
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - H. Wakasa
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - S. Ohno
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - A. Kumakura
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - K. Gora
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - K. Abe
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
| | - K. Ueda
- Department of Dysphagia Rehabilitation; Nihon University School of Dentistry; Tokyo Japan
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23
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Kami YN, Chikui T, Okamura K, Kubota Y, Oobu K, Yabuuchi H, Nakayama E, Hashimoto K, Yoshiura K. Imaging findings of neurogenic tumours in the head and neck region. Dentomaxillofac Radiol 2011; 41:18-23. [PMID: 22074867 DOI: 10.1259/dmfr/81000210] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVE The aim of this study was to describe the CT, MRI and ultrasonography findings of five cases of neurogenic tumours in the head and neck region. METHODS Five neurogenic tumours were analysed with respect to their CT value, the presence of cystic change, target sign, lobulation, connection to the nerve and vascularity. RESULTS The contrast-enhanced CT (ECT) of the schwannomas demonstrated either a mass with low enhancement (two out of three cases), which reflected the predominant Antoni B components, or a mass with cystic changes, which was an Antoni A-based schwannoma displaying cystic changes (one out of three cases). On MRI, all tumours showed homogeneous and isointense signals for muscle on T₁ weighted images (T₁ WIs). T₂ weighted images (T₂ WIs) and gadolinium (Gd)-enhanced T₁ WIs demonstrated target sign in both schwannomas. Ultrasound examination showed a well-defined, ovoid or round hypoechoic mass. The direct connection to the nerve was demonstrated in two of the five cases. Lobulation was observed in only one of the five cases and cystic changes were observed in one of the five cases. In all of the cases, no vascularity was seen in power Doppler images (PDIs) obtained percutaneously. CONCLUSIONS Low-enhanced areas on ECTs can be specific for schwannomas, which suggests the predominance of Antoni B components. The target sign on T₂ WIs and Gd-enhanced T₁ WIs can be specific, which can be used to differentiate the two different components (Antoni A and Antoni B). The direct connection to the nerve can be a specific finding for neurogenic tumours; however, at present the sensitivity is 40%.
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Affiliation(s)
- Y N Kami
- Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, Higashi-ku, Fukuoka, Japan.
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Okamoto T, Chen F, Zhang J, Choi H, Yamada T, Morikawa H, Nakayama E, Bando T, Date H. Comparison of Extracellular-Type–Kyoto Solution and Perfadex as a Preservation Solution in a Pig Ex Vivo Lung Perfusion Model: Impact of Potassium Level. Transplant Proc 2011; 43:1525-8. [DOI: 10.1016/j.transproceed.2011.03.012] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2010] [Revised: 02/02/2011] [Accepted: 03/01/2011] [Indexed: 11/16/2022]
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25
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Nakayama E, Shiratsuchi Y, Kobayashi Y, Nagata K. The importance of infiltrating neutrophils in SDF-1 production leading to regeneration of the thymus after whole-body X-irradiation. Cell Immunol 2011; 268:24-8. [DOI: 10.1016/j.cellimm.2011.01.006] [Citation(s) in RCA: 11] [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] [Received: 06/09/2010] [Revised: 01/11/2011] [Accepted: 01/24/2011] [Indexed: 01/13/2023]
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26
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Nakatsuka MA, Lee JH, Nakayama E, Hung AM, Hsu MJ, Mattrey RF, Esener SC, Cha JN, Goodwin AP. Facile One-Pot Synthesis of Polymer-Phospholipid Composite Microbubbles with Enhanced Drug Loading Capacity for Ultrasound-Triggered Therapy. Soft Matter 2011; 2011:1656-1659. [PMID: 21799701 PMCID: PMC3143006 DOI: 10.1039/c0sm01131b] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
This paper reports the one-pot synthesis of perfluorocarbon microbubbles with crosslinked shells of poly(acrylic acid) and phospholipid that boast excellent ultrasound contrast enhancement, enhanced loading capacity, and the ability to retain or release their contents through variation in the level of ultrasound exposure.
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Affiliation(s)
- Matthew A. Nakatsuka
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
| | - Joo Hye Lee
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
| | - Emi Nakayama
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
| | - Albert M. Hung
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
| | - Mark J. Hsu
- University of California, San Diego, Department of Electrical and Computer Engineering, 9500 Gilman Dr. #0407, La Jolla, CA 92093, USA
| | - Robert F. Mattrey
- University of California, San Diego, Department of Radiology, 410 Dickinson St., San Diego, CA 92103
| | - Sadik C. Esener
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
- University of California, San Diego, Department of Electrical and Computer Engineering, 9500 Gilman Dr. #0407, La Jolla, CA 92093, USA
- , ,
| | - Jennifer N. Cha
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
- , ,
| | - Andrew P. Goodwin
- University of California, San Diego, Department of Nanoengineering, 9500 Gilman Dr. #0048, La Jolla, CA 92093, USA
- , ,
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Takaki A, Tatsukawa M, Iwasaki Y, Koike K, Noguchi Y, Shiraha H, Sakaguchi K, Nakayama E, Yamamoto K. Hepatitis C virus NS4 protein impairs the Th1 polarization of immature dendritic cells. J Viral Hepat 2010; 17:555-62. [PMID: 19804500 PMCID: PMC2916225 DOI: 10.1111/j.1365-2893.2009.01213.x] [Citation(s) in RCA: 10] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Dendritic cells (DCs) in chronic hepatitis C patients display impaired function, although the details remain unclear. To investigate the hepatitis C virus (HCV) protein that has the most impact on DC function, we compared five recombinant proteins and seven HCV protein genes in modulating DC phenotype and function. Immature DCs (iDCs) were established from healthy donor peripheral blood monocytes with granulocyte-macrophage colony stimulating factor (GM-CSF) and IL-4. Lipopolysaccharide was used to establish mature DCs (mDCs). Cells were then pulsed with HCV recombinant proteins or transfected with HCV plasmids and subsequently assayed for cell surface marker expression by flow cytometry. For cytokine and proliferative T-cell response analysis, DCs were cultured with autologous CD4 T cells and tuberculin purified protein derivative (PPD). Mean fluorescent intensity of CD86 was reduced in HCV protein-pulsed iDCs. Proliferative T-cell responses and Th1 cytokine concentrations were reduced with HCV nonstructural proteins (NS), particularly with HCV NS4. HCV nonstructural proteins, particularly NS4, change the iDC phenotype and reduce antigen-specific T-cell stimulatory function with Th1 cytokine reductions.
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Affiliation(s)
- A Takaki
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - M Tatsukawa
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Y Iwasaki
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Koike
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - Y Noguchi
- Departments of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - H Shiraha
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Sakaguchi
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - E Nakayama
- Departments of Immunology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
| | - K Yamamoto
- Departments of Gastroenterology and Hepatology, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical SciencesOkayama, Japan
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28
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Okamoto T, Chen F, Zhang J, Yamada T, Nakayama E, Morikawa H, Bando T, Date H. Establishment of an Ex Vivo Lung Perfusion Model Using Non-Heart-Beating Large Pigs. Transplant Proc 2010; 42:1598-601. [DOI: 10.1016/j.transproceed.2010.03.140] [Citation(s) in RCA: 11] [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] [Received: 01/29/2010] [Accepted: 03/10/2010] [Indexed: 11/25/2022]
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29
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Hirata T, Takenaka K, Nakayama E, Sonobe M, Chen F, Shoji T, Fujinaga T, Sakai H, Sato K, Miyahara R, Date H. Detection of circulating tumor cells in peripheral blood of patients who underwent lung cancer surgery. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.7564] [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: 11/20/2022] Open
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30
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Yoshiura K, Okamura K, Tokumori K, Nakayama E, Chikui T, Goto TK, Shimizu M, Kawazu T. Correlation between diagnostic accuracy and perceptibility. Dentomaxillofac Radiol 2005; 34:350-2. [PMID: 16227477 DOI: 10.1259/dmfr/13550415] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
OBJECTIVES To correlate diagnostic accuracy for proximal caries with perceptibility of low contrast image details using regression analysis. The other purpose was to determine the attenuation range required for proximal caries diagnosis. METHODS The results of the two types of observer performance tests described above were retrieved from previous studies. Recording media included in those studies were the Compuray and the Dixel, direct digital radiographic systems, and Ektaspeed Plus film. The average numbers of perceptibility of image details from five observers were calculated for each step and for every combination of contiguous steps of the aluminium test phantom from the perceptibility test. The average diagnostic accuracy for proximal caries from the same five observers was correlated with the total number of perceptible details from the phantom using regression analysis. Finally, attenuation range required for proximal caries diagnosis was calculated from the attenuation range of the phantom where the maximum correlation coefficient was obtained. RESULTS Maximum correlation (r=0.68) was obtained at the combination of five contiguous steps of the aluminium test phantom. Attenuation range required for proximal caries diagnosis corresponded to the 2 mm to 6 mm thickness of aluminium with acrylic block of 12 mm thickness. CONCLUSIONS There is a correlation between perceptibility of low contrast image details and diagnostic accuracy for proximal caries. There may be a possibility to simplify observer performance tests for proximal caries diagnosis by using the standardized phantom simulating its attenuation range.
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Affiliation(s)
- K Yoshiura
- Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582 Japan.
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Yoshiura K, Nakayama E, Shimizu M, Goto TK, Chikui T, Kawazu T, Okamura K. Effects of the automatic exposure compensation on the proximal caries diagnosis. Dentomaxillofac Radiol 2005; 34:140-4. [PMID: 15897283 DOI: 10.1259/dmfr/88681265] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [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: 11/05/2022] Open
Abstract
OBJECTIVE To elucidate the effect of automatic exposure compensation (AEC) on the diagnostic accuracy of proximal caries by comparing several digital intraoral imaging systems with a film. MATERIALS AND METHODS Twenty-seven extracted teeth served as proximal caries samples. Three digital radiographic systems; the Compuray, the Dixel, and the Sens-A-Ray without scintillator layer, and Kodak Ekta-speed Plus films were used as recording media. Radiographs of the teeth samples were obtained with each recording medium under seven to eight different exposures including the optimum level. Six oral radiologists evaluated the possibility of proximal caries with the five-grade-confidence-scale. On digital radiographs, image manipulations were allowed after the initial assessment. Receiver operating characteristic (ROC) curves were obtained at each exposure in each recording medium. The area under the ROC curve (Az) was used as the representative value of diagnostic accuracy. Diagnostic accuracy (DA) curves were obtained by plotting averaged Az values from all observers as a function of incident exposure in each system. RESULTS The effect of exposure variation on the DA was slight in the film while it was significantly larger in the digital systems without AEC. Among digital systems, the effect of exposure variation was smaller in the system with AEC than those without AEC. There was no significant effect on the diagnostic accuracy even if digital image manipulation was employed. CONCLUSION AEC minimizes the decrease of DA due to inadequate exposures. Since it compensates for the narrow exposure range in the digital intraoral sensor systems, the system with AEC may be preferable for the clinical diagnostic tasks.
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Affiliation(s)
- K Yoshiura
- Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, Maidashi 3-1-1, Higashi-ku, Fukuoka, 812-8582 Japan.
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Nakayama E, Sugiura K, Ishibashi H, Oobu K, Kobayashi I, Yoshiura K. The clinical and diagnostic imaging findings of osteosarcoma of the jaw. Dentomaxillofac Radiol 2005; 34:182-8. [PMID: 15897290 DOI: 10.1259/dmfr/71175262] [Citation(s) in RCA: 32] [Impact Index Per Article: 1.7] [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: 11/05/2022] Open
Abstract
OBJECTIVE To clarify the valuable clinical features and diagnostic imaging findings regarding the diagnosis of osteosarcoma of the jaw (OSJ). MATERIALS AND METHODS The initial symptoms and diagnostic imaging findings of 10 patients with OSJ were analysed. The points analysed on the diagnostic images were as follows: any widening of the periodontal ligament space of the teeth on the periphery of the OSJ; the presence of radial spicules and Codman's triangle; any signs of bone destruction; and the patterns of osteogenesis. RESULTS All patients had pain and/or swelling of the affected site, and all OSJs, except for one edentulous case, showed a widening of the periodontal ligament space of the teeth on the periphery of the OSJ. Radial spicules or Codman's triangle were observed in only three cases (30%). Four out of five mandibular OSJs were osteolytic or osteolytic dominant with bone destruction, while, in contrast, four out of five maxillary OSJs were osteogenic or osteogenic dominant, and three out of the four maxillary OSJs did not show bone destruction. The osteogenic OSJ without bone destruction was similar to some benign cemento-osseous lesions of the jaw and thus was difficult to diagnose as OSJ based on the diagnostic imaging findings alone. CONCLUSION Even though some OSJ showed features similar to the benign tumours of the jaw bone based on the diagnostic imaging findings, the pain and swelling of the affected site, and the widening of the periodontal ligament space of the teeth on the periphery of OSJ were considered to be common findings, which may help in making an accurate diagnosis of OSJ in this limited series.
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Affiliation(s)
- E Nakayama
- Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
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33
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Yoshiura K, Welander U, McDavid WD, Li G, Shi XQ, Nakayama E, Shimizu M, Okamura K, Kanda S. Comparison of the psychophysical properties of various intraoral film and digital systems by means of the perceptibility curve test. Dentomaxillofac Radiol 2004; 33:98-102. [PMID: 15314001 DOI: 10.1259/dmfr/29102849] [Citation(s) in RCA: 9] [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: 11/05/2022] Open
Abstract
OBJECTIVES To compare psychophysical properties of two intraoral films and three digital systems using the perceptibility curve (PC) test. MATERIALS AND METHODS A test object was used to determine the exposures and exposure differences between the total thickness of the test object and details consisting of holes of increasing depth. The PCs for the two intraoral films, UltraSpeed and EktaSpeed Plus, were constructed employing exposure and exposure differences from dose response functions. Integrals of the PCs were calculated to obtain the psychophysical properties of the two films. Psychophysical properties of the two films were compared with those of the three digital systems published previously (CDR, Dixel and Digora). RESULTS The PC for the EktaSpeed Plus showed a slightly higher peak than that for the UltraSpeed. Available exposure ranges were comparable. The PC for the EktaSpeed Plus was shifted to the left of the exposure axis indicating its higher sensitivity as compared with UltraSpeed. All three digital systems had narrower but higher peaks compared with the films. The integrals for the digital systems were considerably larger than those for the two film types. CONCLUSIONS All the three digital systems have superior psychophysical properties compared with the two tested films.
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Affiliation(s)
- K Yoshiura
- Department of Oral and Maxillofacial Radiology, Faculty of Dental Science, Kyushu University, Fukuoka, Japan.
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Goto M, Karita S, Yahaya MS, Kim W, Nakayama E, Yamada Y. Utilization of Ruminal Epithelial Cells by Ruminococcus albus, with or without Rumen Protozoa, and Its Effect on Bacterial Growth. Asian Australas J Anim Sci 2003. [DOI: 10.5713/ajas.2003.44] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Abstract
This review is a research update of recent literature related to childhood-onset schizophrenia (onset of psychotic symptoms by age 12 years). This subgroup of patients has attracted considerable research interest because patients with a childhood onset may represent a more homogeneous patient population in which to search for risk or etiologic factors. We examine data indicating that childhood-onset schizophrenia (COS) shares the same clinical and neurobiologic features as later-onset forms of the disorder. Compared with adults with schizophrenia, however, this subgroup of patients appears to have more severe premorbid neuro-developmental abnormalities, more cytogenetic anomalies, and potentially greater family histories of schizophrenia and associated spectrum disorders. While preliminary, these data indicate that a greater genetic vulnerability may be one of the underpinnings of COS. Future studies of this subgroup may provide important clues as to the genetic basis for schizophrenia and how gene products influence certain features of the disease, such as age of onset and mode of inheritance.
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Affiliation(s)
- S Kumra
- Albert Einstein College of Medicine, Bronx, New York, USA.
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36
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Okano M, Azuma M, Yoshino T, Hattori H, Nakada M, Satoskar AR, Harn DA, Nakayama E, Akagi T, Nishizaki K. Differential role of CD80 and CD86 molecules in the induction and the effector phases of allergic rhinitis in mice. Am J Respir Crit Care Med 2001; 164:1501-7. [PMID: 11704603 DOI: 10.1164/ajrccm.164.8.2011072] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.2] [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: 11/16/2022] Open
Abstract
Selective involvement of CD80 and/or CD86 in the differentiation of T-helper (Th)1 and Th2 was seen in several diseases. In this study, we sought to determine the differential roles of CD80 and CD86 in the induction and effector phase of allergic rhinitis using Schistosoma mansoni egg antigen (SEA) as a specific Ag. Intranasal sensitization with SEA in BALB/c mice elicited a strong Th2 response including SEA-specific IgE production, nasal eosinophilia, and IL-4 and IL-5 production by nasal lymphocytes after Ag challenge. Blockade of CD80 at the induction phase significantly inhibited these manifestations, whereas no effect was observed by CD86 blockade. In contrast, the simultaneous blockade of both CD80 and CD86 during the effector phase partially inhibited IgE and IgG(1) production and nasal eosinophilia, although either blockade of CD80 or CD86 during the phase failed to inhibit these responses. Flow cytometric analysis on nasal mononuclear cells showed that CD80 but not CD86 was preferentially expressed on non-B cells by in vitro SEA stimulation in unsensitized mice. However, both CD80 and CD86 expression were significantly augmented by in vitro SEA stimulation in sensitized mice. Our results suggest the differential roles and expression of CD80 and CD86 in the development of allergic rhinitis.
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Affiliation(s)
- M Okano
- Department of Otolaryngology, Okayama University Medical School, Okayama, Japan.
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37
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Hattori H, Okano M, Yoshino T, Akagi T, Nakayama E, Saito C, Satoskar AR, Ogawa T, Azuma M, Nishizaki K. Expression of costimulatory CD80/CD86-CD28/CD152 molecules in nasal mucosa of patients with perennial allergic rhinitis. Clin Exp Allergy 2001; 31:1242-9. [PMID: 11529894 DOI: 10.1046/j.1365-2222.2001.01021.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [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]
Abstract
BACKGROUND B7 molecules (CD80, CD86) and their counter-receptors, CD28 and CD152 (CTLA-4), play an important role in T cell-mediated immune responses. We previously demonstrated that B7 molecules are selectively up-regulated not only on B cells but also on T cells from the peripheral blood mononuclear cells of patients with perennial rhinitis cultured with allergen. However, the expression of CD80/CD86 molecules and their counter-receptors in nasal mucosa, the actual inflammatory site of allergic rhinitis, has not yet been clarified. PATIENTS AND METHODS Inferior turbinates from patients with either allergy to house dust or non-allergic rhinitis were excised and immunohistologically stained. In addition, the inferior turbinates were challenged with paper discs containing extracts of house dust and subsequently excised. Samples were double stained with immunofluorescent-labelled antibody to identify cells bearing CD86. RESULTS Without the nasal provocation, only the expression of CD86 was increased in nasal mucosa of patients with allergic rhinitis compared with those with non-allergic rhinitis. However, following the nasal provocation with house dust, not only CD86, but also CD80, CD28, and CD152 were significantly expressed in allergic patients. Immunofluorescent double staining revealed CD86 expression in CD19, CD1a, CD14 and CD3 lymphocytes. CONCLUSION These results indicate that the expression of CD80/CD86 molecules and their counter-receptors is induced in allergic patients following nasal provocation with allergen, suggesting a local amplification of allergen-specific immune responses in perennial rhinitis.
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Affiliation(s)
- H Hattori
- Department of Otolaryngology, Okayama University Medical School, Okayama, Japan
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38
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Uenaka A, Hata H, Win S, Ono T, Wada H, Nakayama E. ELISPOT cloning of tumor antigens recognized by cytotoxic T-lymphocytes from a cDNA expression library. Cancer Immun 2001; 1:8. [PMID: 12747769] [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] [Received: 05/01/2001] [Accepted: 06/08/2001] [Indexed: 03/02/2023]
Abstract
The methodology of cloning genes coding for antigens recognized by T-cells from cDNA expression libraries was improved technically by using enzyme-linked immunospot (ELISPOT) assays instead of enzyme-linked immunosorbent assays (ELISA) or bioassays to detect cytokines produced by T-cells in response to antigens. Combining large and small scale ELISPOT assays for expression cloning has the following advantages compared to conventional cDNA expression cloning: i) the number of recombinant plasmids which can be screened is greater than 10,000 per well in a 24-well plate in a large scale ELISPOT assay compared to fewer than 100 per well in a 96-well plate in an IFN-gamma ELISA or a TNF-alpha bioassay; ii) the total number of recombinant plasmids which can be screened in a routine assay is 2 x 10 (5) in only one 24-well plate in a large scale ELISPOT assay compared to 1 x 10 (5) in ten 96-well plates in an IFN-gamma ELISA or a TNF-alpha bioassay. Thus the screening efficiency of large scale ELISPOT cloning is approximately 200 times that of conventional expression cloning approaches. The efficiency of the method was confirmed by detecting the model gene RLakt from a cDNA library of a murine leukemia RL male 1.
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MESH Headings
- Animals
- Antigens, Neoplasm/genetics
- Antigens, Neoplasm/immunology
- Clone Cells/cytology
- Clone Cells/immunology
- Cloning, Molecular
- Cytotoxicity Tests, Immunologic
- Cytotoxicity, Immunologic/immunology
- Gene Expression Regulation, Neoplastic
- Gene Library
- Immunoenzyme Techniques/methods
- Interferon-gamma/blood
- Leukemia, Radiation-Induced/genetics
- Leukemia, Radiation-Induced/immunology
- Leukemia, Radiation-Induced/pathology
- Mice
- Mice, Inbred BALB C
- Protein Serine-Threonine Kinases
- Proto-Oncogene Proteins/genetics
- Proto-Oncogene Proteins/immunology
- Proto-Oncogene Proteins c-akt
- RNA, Messenger/genetics
- RNA, Messenger/metabolism
- Reverse Transcriptase Polymerase Chain Reaction
- T-Lymphocytes, Cytotoxic/cytology
- T-Lymphocytes, Cytotoxic/immunology
- T-Lymphocytes, Cytotoxic/metabolism
- Tumor Cells, Cultured
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Affiliation(s)
- A Uenaka
- Department of Immunology, Okayama University Graduate School of Medicine and Dentistry, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
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Hiraki A, Ono T, Tanaka M, Kiura K, Ueoka H, Kawai H, Harada M, Nakayama E, Noguchi Y. Generation of cytotoxic T lymphocytes against autologous lung cancer cells resistant to apoptosis. Anticancer Res 2001; 21:2561-7. [PMID: 11724322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
BACKGROUND [corrected] Non-small cell lung cancer (NSCLC) is resistant to conventional treatment; so the development of a new therapy is urgent. MATERIALS AND METHODS 50 patients with NSCLC and malignant effusion were enrolled in this study. Seventeen autologous lung cancer cell lines were established. Peripheral lymphocytes and irradiated autologous tumor cell lines were co-cultured to generate cytotoxic T lymphocytes (CTL). Expression of apoptosis-related molecules were analysed by RT-PCR or FACS. RESULTS CTL lines were established in 2 patients. Both CTL lines were CD3+, CD8+ and MHC class I-restricted T cells and showed cytotoxic activities not only against autologous tumor cell lines but against allogenic cancer cell lines. Two lung cancer cell lines were established from one patient before and after cisplatin-based chemotherapy. The tumor cell line established after chemotherapy was apoptosis-resistant, but was sensitive to cytotoxicity of CTL. CONCLUSION CTL-based immunotherapy may be one of the candidates for future therapies against NSCLC.
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Affiliation(s)
- A Hiraki
- Department of Immunology, Okayama University Medical School, Japan
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40
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Kurashige T, Noguchi Y, Saika T, Ono T, Nagata Y, Jungbluth A, Ritter G, Chen YT, Stockert E, Tsushima T, Kumon H, Old LJ, Nakayama E. Ny-ESO-1 expression and immunogenicity associated with transitional cell carcinoma: correlation with tumor grade. Cancer Res 2001; 61:4671-4. [PMID: 11406534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Abstract
NY-ESO-1 mRNA expression in transitional cell carcinoma was investigated by reverse transcription-PCR and immunohistochemistry. NY-ESO-1 mRNA was detected in 20 of 62 (32%) tumor specimens. There was a correlation between NY-ESO-1 expression and tumor grade: 0 of 4 (0%) grade 1 (G1), 6 of 26 (23%) grade 2 (G2), and 14 of 32 (44%) grade 3 (G3) tumors were NY-ESO-1 mRNA positive. Immunohistochemical analysis using NY-ESO-1-specific monoclonal antibody ES121 showed that 2 of 14 NY-ESO-1 mRNA-expressing G3 tumors were positive for NY-ESO-1. No NY-ESO-1 staining was observed in the panel of 30 G1 or G2 tumor specimens, including 6 NY-ESO-1 mRNA-positive cases. Sera from an expanded panel of 124 patients with transitional cell carcinoma were tested for the presence of NY-ESO-1 antibody. Seropositivity was observed in 9 of 72 (12.5%) patients with G3 tumors, whereas none of 52 patients with G1 or G2 tumors produced antibody against NY-ESO-1. In the 9 positive patients with NY-ESO-1 antibody, 4 had muscular invasive tumors, and 5 had carcinoma in situ.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antibodies, Neoplasm/biosynthesis
- Antibodies, Neoplasm/blood
- Antigens, Neoplasm/biosynthesis
- Antigens, Neoplasm/immunology
- Carcinoma, Transitional Cell/genetics
- Carcinoma, Transitional Cell/immunology
- Carcinoma, Transitional Cell/pathology
- Enzyme-Linked Immunosorbent Assay
- Female
- Humans
- Immunohistochemistry
- Male
- Membrane Proteins
- Middle Aged
- Protein Biosynthesis
- Proteins/genetics
- Proteins/immunology
- RNA, Messenger/biosynthesis
- RNA, Messenger/genetics
- Ureteral Neoplasms/genetics
- Ureteral Neoplasms/immunology
- Ureteral Neoplasms/pathology
- Urinary Bladder Neoplasms/genetics
- Urinary Bladder Neoplasms/immunology
- Urinary Bladder Neoplasms/pathology
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Affiliation(s)
- T Kurashige
- Department of Urology, Okayama University Medical School, Okayama 700-8558, Japan
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41
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Abstract
BACKGROUND Several clinical and epidemiologic studies have investigated sex differences in the prevalence of allergic rhinitis. At present, however, no reports have demonstrated such differences in experimental models with local, but not parenteral, sensitization with antigens that may reflect natural exposure to allergens. We have recently developed murine models of allergic rhinitis after repeated intranasal sensitization with antigens in the absence of adjuvants. In this study, we investigated the role of sex in the initiation of the disease in vivo. METHODS Male and female CBA/J and BALB/c mice were sensitized intranasally with phospholipase A2 (PLA2) and Schistosoma mansoni egg antigen (SEA), respectively, in the absence of adjuvants. After the repeated sensitization, serum Ab titers against the sensitizing antigen and nasal eosinophilia were determined. In addition, the involvement of androgen in IgE synthesis was investigated in castrated CBA/J male mice with or without testosterone administration. RESULTS Females produced significantly higher levels of PLA2-specific IgE than males in CBA/J mice sensitized with PLA2. On the other hand, both titers of PLA2-specific IgG1 and nasal eosinophilia did not significantly differ between the two groups. Castrated male mice produced significantly higher amounts of PLA2-specific IgE than sham-treated male mice. In addition, PLA2-specific IgE production decreased in castrated mice treated with testosterone. Sexual differences in the production of Ag-specific IgE were not seen in BALB/c mice after the sensitization with SEA. CONCLUSION These results suggest that sex is responsible for the production of Ag-specific IgE, but not IgG1 or nasal eosinophilia, and that androgen appears to be involved in the in vivo production of specific IgE in male mice.
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Affiliation(s)
- T Yamatomo
- Department of Otolaryngology, Okayama University Medical School, Okayama, Japan
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42
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Sakamoto N, Shibuya K, Shimizu Y, Yotsumoto K, Miyabayashi T, Sakano S, Tsuji T, Nakayama E, Nakauchi H, Shibuya A. A novel Fc receptor for IgA and IgM is expressed on both hematopoietic and non-hematopoietic tissues. Eur J Immunol 2001; 31:1310-6. [PMID: 11465087 DOI: 10.1002/1521-4141(200105)31:5<1310::aid-immu1310>3.0.co;2-n] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.7] [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: 11/10/2022]
Abstract
By contrast to well-defined Fc gamma and Fc epsilon receptors, the structural and functional characteristics of Fc mu receptor are unclear. We have recently described a novel mouse Fc receptor, designated Fc alpha/mu receptor, and its human homologue, which bind both IgM and IgA. Here we show that the Fc alpha/mu receptor is expressed on mature, but not immature, B lymphocytes and acquires the ability to bind IgM and IgA antibodies after stimulation of B lymphocytes. Moreover, stimulation with phorbol 12-myristate 13-acetate increased endocytosis of IgM-coated microparticles mediated by the Fc alpha/mu receptor expressed on pro-B cell line Ba/F3 cells. We also show that the Fc alpha/mu receptor is expressed in secondary lymphoid organs, such as lymph node and appendix, kidney and intestine, suggesting an important role of the receptor for immunity in these organs.
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Affiliation(s)
- N Sakamoto
- Department of Immunology, Institute of Basic Medical Sciences, University of Tsukuba, Ibaraki, Japan
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43
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Ono T, Kurashige T, Harada N, Noguchi Y, Saika T, Niikawa N, Aoe M, Nakamura S, Higashi T, Hiraki A, Wada H, Kumon H, Old LJ, Nakayama E. Identification of proacrosin binding protein sp32 precursor as a human cancer/testis antigen. Proc Natl Acad Sci U S A 2001; 98:3282-7. [PMID: 11248070 PMCID: PMC30645 DOI: 10.1073/pnas.041625098] [Citation(s) in RCA: 85] [Impact Index Per Article: 3.7] [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: 12/31/2022] Open
Abstract
Serological expression cloning of antigens eliciting a humoral immune response to a syngeneic mouse sarcoma identified pem (mouse placenta and embryonic expression gene) as a new member of the cancer/testis family. To identify the human homologue of pem, mouse pem sequences and pem-related expressed sequence tags from human testis were used as PCR primers for amplification using human testis cDNA. However, rather than pem, another gene, designated OY-TES-1, was isolated and found to be the human homologue of proacrosin binding protein sp32 precursor originally identified in mouse, guinea pig, and pig. OY-TES-1 maps to chromosome 12p12-p13 and contains 10 exons. Southern blot analysis suggests the presence of two OY-TES-1-related genes in the human genome. In normal tissues, OY-TES-1 mRNA was expressed only in testis, whereas in malignant tissues, a variable proportion of a wide array of cancers, including bladder, breast, lung, liver, and colon cancers, expressed OY-TES-1. Serological survey of 362 cancer patients with a range of different cancers showed antibody to OY-TES-1 in 25 patients. No OY-TES-1 sera reactivity was found in 20 normal individuals. These findings indicate that OY-TES-1 is an additional member of the cancer/testis family of antigens and that OY-TES-1 is immunogenic in humans.
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Affiliation(s)
- T Ono
- Department of Immunology, Okayama University Medical School, Okayama 700-8558, Japan.
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Takagi K, Miyake K, Takagi N, Tadokoro M, Nakayama E, Nagakura A, Takeo S. Characterization of microsphere embolism-induced impairment of learning and memory function and the cholinergic system. Biol Pharm Bull 2001; 24:43-9. [PMID: 11201244 DOI: 10.1248/bpb.24.43] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The impairments of learning and memory function and of the cholinergic system were examined in rats with microsphere embolism. Microsphere embolism was induced by injection of 900 microspheres with a diameter of 48 microm into the right internal carotid artery. The retention latency of a passive avoidance test was shortened and the escape latency of a water maze test was prolonged, when the animals were tested on the 5th to 10th day after the embolism, suggesting learning and memory dysfunction. Cholinergic parameters of the striatum and hippocampus, such as acetylcholine (ACh) content (67 and 60% decrease, respectively), choline acetyltransferase (ChAT) activity (45 and 56% decrease, respectively), and Bmax of muscarinic acetylcholine M1-receptor (43 and 37% decrease, respectively), were reduced on the 11th day after the embolism, suggesting attenuation of ACh synthesis and a decrease in the number of muscarinic acetylcholine M1-receptors mainly in the striatum and hippocampus. Areas not stained with triphenyltetrazolium chloride, an indication of infarction, were detected mainly in the striatum and hippocampus and partly in the frontal cortex on the 11th day after the embolism. The results suggest that an animal with microsphere embolism may be a good ischemic model with relatively sustained impairments of learning and memory function and of the striatal and hippocampal cholinergic system.
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Affiliation(s)
- K Takagi
- Department of Pharmacology, Tokyo University of Pharmacy & Life Science, Hachioji, Japan
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45
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Ono T, Sato S, Kimura N, Tanaka M, Shibuya A, Old LJ, Nakayama E. Serological analysis of BALB/C methylcholanthrene sarcoma Meth A by SEREX: identification of a cancer/testis antigen. Int J Cancer 2000. [PMID: 11093803 DOI: 10.1002/1097-0215(20001215)88:6%3c845::aid-ijc1%3e3.0.co;2-n] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Antigens of BALB/c methylcholanthrene-induced fibrosarcoma Meth A recognized by the host humoral immune response were investigated by serological analysis of antigens by recombinant expression cloning (SEREX). Immunoscreening a cDNA library from Meth A (Kgamma) cells (Meth A retrovirally transfected with murine IFN-gamma cDNA) with sera from BALB/c mice growing parental Meth A transplants identified 10 antigens. One of them, OY-MS-4, showed characteristics of a cancer/testis (CT) antigen. Nucleotide sequence analysis revealed that OY-MS-4 was identical to a mouse placenta and embryonic expression gene (pem) known to be selectively expressed during embryogenesis and in transformed cell lines. In adult mice, expression of OY-MS-4 was restricted to testis and placenta. Four of 6 methylcholanthrene-induced fibrosarcomas in BALB/c mice showed strong expression of OY-MS-4. In 6 T-cell leukemias, only a dimethylbenzanthracene-induced leukemia, EL4 (C57BL), showed strong expression. Two other tumors, A20.2J and P815, induced by ethylnitrosourea and methylcholanthrene, respectively, also strongly expressed OY-MS-4. The other 9 gene products identified in Meth A by SEREX were expressed in all 15 tumors tested and in a range of normal tissues. Sequence analysis of cDNA inserts coding for the SEREX-defined antigens showed no evidence of mutation. Despite the expression of OY-MS-1-10 antigens in methylcholanthrene sarcomas other than Meth A, no antibody was detected in the sera of mice bearing these other sarcomas. The basis for the unique immunogenicity of OY-MS-1-10 presented by Meth A, but not by other syngeneic tumors expressing these gene products, is unknown.
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Affiliation(s)
- T Ono
- Department of Immunology, Okayama University Medical School, Okayama, Japan
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Ono T, Sato S, Kimura N, Tanaka M, Shibuya A, Old LJ, Nakayama E. Serological analysis of BALB/C methylcholanthrene sarcoma Meth A by SEREX: identification of a cancer/testis antigen. Int J Cancer 2000. [PMID: 11093803 DOI: 10.1002/1097-0215(20001215)88:6<845::aid-ijc1>3.0.co;2-n] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Antigens of BALB/c methylcholanthrene-induced fibrosarcoma Meth A recognized by the host humoral immune response were investigated by serological analysis of antigens by recombinant expression cloning (SEREX). Immunoscreening a cDNA library from Meth A (Kgamma) cells (Meth A retrovirally transfected with murine IFN-gamma cDNA) with sera from BALB/c mice growing parental Meth A transplants identified 10 antigens. One of them, OY-MS-4, showed characteristics of a cancer/testis (CT) antigen. Nucleotide sequence analysis revealed that OY-MS-4 was identical to a mouse placenta and embryonic expression gene (pem) known to be selectively expressed during embryogenesis and in transformed cell lines. In adult mice, expression of OY-MS-4 was restricted to testis and placenta. Four of 6 methylcholanthrene-induced fibrosarcomas in BALB/c mice showed strong expression of OY-MS-4. In 6 T-cell leukemias, only a dimethylbenzanthracene-induced leukemia, EL4 (C57BL), showed strong expression. Two other tumors, A20.2J and P815, induced by ethylnitrosourea and methylcholanthrene, respectively, also strongly expressed OY-MS-4. The other 9 gene products identified in Meth A by SEREX were expressed in all 15 tumors tested and in a range of normal tissues. Sequence analysis of cDNA inserts coding for the SEREX-defined antigens showed no evidence of mutation. Despite the expression of OY-MS-1-10 antigens in methylcholanthrene sarcomas other than Meth A, no antibody was detected in the sera of mice bearing these other sarcomas. The basis for the unique immunogenicity of OY-MS-1-10 presented by Meth A, but not by other syngeneic tumors expressing these gene products, is unknown.
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Affiliation(s)
- T Ono
- Department of Immunology, Okayama University Medical School, Okayama, Japan
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Ono T, Sato S, Kimura N, Tanaka M, Shibuya A, Old LJ, Nakayama E. Serological analysis of BALB/C methylcholanthrene sarcoma Meth A by SEREX: identification of a cancer/testis antigen. Int J Cancer 2000; 88:845-51. [PMID: 11093803 DOI: 10.1002/1097-0215(20001215)88:6<845::aid-ijc1>3.0.co;2-n] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.8] [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: 12/26/2022]
Abstract
Antigens of BALB/c methylcholanthrene-induced fibrosarcoma Meth A recognized by the host humoral immune response were investigated by serological analysis of antigens by recombinant expression cloning (SEREX). Immunoscreening a cDNA library from Meth A (Kgamma) cells (Meth A retrovirally transfected with murine IFN-gamma cDNA) with sera from BALB/c mice growing parental Meth A transplants identified 10 antigens. One of them, OY-MS-4, showed characteristics of a cancer/testis (CT) antigen. Nucleotide sequence analysis revealed that OY-MS-4 was identical to a mouse placenta and embryonic expression gene (pem) known to be selectively expressed during embryogenesis and in transformed cell lines. In adult mice, expression of OY-MS-4 was restricted to testis and placenta. Four of 6 methylcholanthrene-induced fibrosarcomas in BALB/c mice showed strong expression of OY-MS-4. In 6 T-cell leukemias, only a dimethylbenzanthracene-induced leukemia, EL4 (C57BL), showed strong expression. Two other tumors, A20.2J and P815, induced by ethylnitrosourea and methylcholanthrene, respectively, also strongly expressed OY-MS-4. The other 9 gene products identified in Meth A by SEREX were expressed in all 15 tumors tested and in a range of normal tissues. Sequence analysis of cDNA inserts coding for the SEREX-defined antigens showed no evidence of mutation. Despite the expression of OY-MS-1-10 antigens in methylcholanthrene sarcomas other than Meth A, no antibody was detected in the sera of mice bearing these other sarcomas. The basis for the unique immunogenicity of OY-MS-1-10 presented by Meth A, but not by other syngeneic tumors expressing these gene products, is unknown.
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Affiliation(s)
- T Ono
- Department of Immunology, Okayama University Medical School, Okayama, Japan
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Shibuya A, Sakamoto N, Shimizu Y, Shibuya K, Osawa M, Hiroyama T, Eyre HJ, Sutherland GR, Endo Y, Fujita T, Miyabayashi T, Sakano S, Tsuji T, Nakayama E, Phillips JH, Lanier LL, Nakauchi H. Fc alpha/mu receptor mediates endocytosis of IgM-coated microbes. Nat Immunol 2000; 1:441-6. [PMID: 11062505 DOI: 10.1038/80886] [Citation(s) in RCA: 283] [Impact Index Per Article: 11.8] [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: 11/08/2022]
Abstract
IgM is the first antibody to be produced in a humoral immune response and plays an important role in the primary stages of immunity. Here we describe a mouse Fc receptor, designated Fc alpha/microR, and its human homolog, that bind both IgM and IgA with intermediate or high affinity. Fc alpha/microR is constitutively expressed on the majority of B lymphocytes and macrophages. Cross-linking Fc alpha/microR expressed on a pro-B cell line Ba/F3 transfectant with soluble IgM or IgM-coated microparticles induced internalization of the receptor. Fc alpha/microR also mediated primary B lymphocyte endocytosis of IgM-coated Staphylococcus aureus. Thus, Fc alpha/microR is involved in the primary stages of the immune response to microbes.
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Affiliation(s)
- A Shibuya
- Department of Immunology, Institute of Basic Medical Sciences, University of Tsukuba, Ibaraki, Japan.
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Tatsumi M, Yoshiura K, Yuasa K, Tabata O, Nakayama E, Kawazu T, Chikui T, Katoh M, Kanda S. Clinical evaluation of "veraviewpocs" digital panoramic X-ray system. Int J Comput Dent 2000; 3:183-95. [PMID: 11410969] [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] [Subscribe] [Scholar Register] [Indexed: 02/20/2023]
Affiliation(s)
- M Tatsumi
- Kyusyu University, Faculty of Dentistry, Dept. of Oral and Maxillofacial Radiology, 3-1-1 Maidashi, Higashi-ku, Fukuoka-shi 812-8582 Fukuoka, Japan.
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Yamamoto T, Yamaguchi J, Nakayama E, Kanematsu T. Anti-CD4 induced rat heart tolerance: no presence of primed T cells and regulatory mechanisms for cytotoxic T cells. Transpl Immunol 2000; 8:101-7. [PMID: 11005315 DOI: 10.1016/s0966-3274(00)00005-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
Treatment with anti-CD4 monoclonal antibody (mAb) (OX38) induces heart, but not skin graft tolerance in WF (RT1u) to Lewis (RT1l) rat strain combinations. We examined differences in cellular responses between heart-bearing and skin-rejected hosts that were both treated with anti-CD4 mAb. In the tolerant LEW rats bearing WF heart transplants, the secondary WF heart but not skin grafts were accepted. On the other hand, in anti-CD4 treated WF skin-rejected hosts, both secondary WF heart and skin grafts were rapidly rejected. Spleen cells from anti-CD4 treated WF skin-rejected LEW rats but not from WF heart-bearing LEW rats received the same treatment generated CTL after in vitro stimulation with paraformaldehyde (PFA) treated donor WF stimulator spleen cells. Adoptive transfer of spleen cells from WF skin-rejected LEW rats with or without anti-CD4 therapy into the tolerant LEW rats at the secondary WF heart transplantation blocked the secondary heart graft acceptance. However, transfer of spleen cells from WF heart-rejected rats without immunosuppression failed to block acceptance of the secondary heart graft. Our results indicated the lack of primed T cells and presence of regulatory mechanisms for tissue specific T cells in anti-CD4 treated heart bearing hosts.
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Affiliation(s)
- T Yamamoto
- The Department of Surgery II, Nagasaki University School of Medicine, Japan
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