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Akashi N, Ogawa-Momohara M, Taki T, Fukaura R, Wakahara K, Kamiya S, Yamashita Y, Koizumi H, Takeichi T, Muro Y, Akiyama M. Correlation of serum allergen-specific IgE with total serum IgE and IgE specific to other allergens in Atopic dermatitis patients. J Eur Acad Dermatol Venereol 2024. [PMID: 38372194 DOI: 10.1111/jdv.19872] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Accepted: 02/02/2024] [Indexed: 02/20/2024]
Affiliation(s)
- Norika Akashi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Ogawa-Momohara
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoki Taki
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryo Fukaura
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Satoshi Kamiya
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuta Yamashita
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Haruka Koizumi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takuya Takeichi
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinao Muro
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Fukutani E, Wakahara K, Nakamura S, Yokoi E, Yoshimi A, Miyazaki M, Nakamura M, Shindo Y, Sakamoto K, Okachi S, Tanaka I, Hamajima N, Noda Y, Hashimoto N, Ishii M. Inhalation adherence for asthma and COPD improved during the COVID-19 pandemic: a questionnaire survey at a university hospital in Japan. J Asthma 2023; 60:2002-2013. [PMID: 37133903 DOI: 10.1080/02770903.2023.2209173] [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: 01/30/2023] [Revised: 04/22/2023] [Accepted: 04/26/2023] [Indexed: 05/04/2023]
Abstract
Background: Good adherence to an inhaled medication protocol is necessary for the management of asthma and chronic obstructive pulmonary disease (COPD), and several interventions to improve adherence have been reported. However, the impact of patient life changes and psychological aspects on treatment motivation is obscure. Here, we investigated changes in inhaler adherence during the COVID-19 pandemic and how lifestyle and psychological changes affected it.Methods: Seven-hundred sixteen adult patients with asthma and COPD who had visited Nagoya University Hospital between 2015 and 2020 were selected. Among them, 311 patients had received instruction at a pharmacist-managed clinic (PMC). We distributed one-time cross-sectional questionnaires from January 12 to March 31, 2021. The questionnaire covered the status of hospital visits, inhalation adherence before and during the COVID-19 pandemic, lifestyles, medical conditions, and psychological stress. The Adherence Starts with Knowledge-12 (ASK-12) was used to assess adherence barriers.Results: Four-hundred thirty-three patients answered the questionnaire. Inhalation adherence was significantly improved in both diseases during the COVID-19 pandemic. The most common reason for improved adherence was fear of infection. Patients with improved adherence were more likely to believe that controller inhalers could prevent COVID-19 from becoming more severe. Improved adherence was more common in patients with asthma, those not receiving counseling at PMC, and those with poor baseline adherence.Conclusions: Inhalation adherence for asthma and COPD improved in the COVID-19 pandemic. The patients seemed to realize the necessity and benefits of the medication more strongly than before the pandemic, which motivated them to improve adherence.
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Affiliation(s)
- Eriko Fukutani
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Saya Nakamura
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Eito Yokoi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akira Yoshimi
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Masayuki Miyazaki
- Department of Hospital Pharmacy, Nagoya University Hospital, Nagoya, Japan
| | - Mariko Nakamura
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Yuichiro Shindo
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Koji Sakamoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ichidai Tanaka
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Nobuyuki Hamajima
- Department of Healthcare Administration, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukihiro Noda
- Division of Clinical Sciences and Neuropsychopharmacology, Faculty and Graduate School of Pharmacy, Meijo University, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Makoto Ishii
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Okachi S, Sakurai M, Matsui T, Ito T, Matsuzawa R, Morise M, Wakahara K, Ishii M, Fujiwara M. The Application of Mixed Reality in Bronchoscopy Simulation Training: A Feasibility Study. Surg Innov 2023; 30:685-686. [PMID: 36855866 DOI: 10.1177/15533506231160201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Affiliation(s)
- Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Medical xR Center, Nagoya University Graduate School of Medicine, Japan
| | - Manami Sakurai
- Medical xR Center, Nagoya University Graduate School of Medicine, Japan
| | - Toshinori Matsui
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Medical xR Center, Nagoya University Graduate School of Medicine, Japan
| | - Takayasu Ito
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Reiko Matsuzawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Department of Thoracic Oncology, Aichi Cancer Center Hospital, Japan
| | - Masahiro Morise
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Makoto Ishii
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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Ito T, Okachi S, Iwano S, Kinoshita F, Wakahara K, Hashimoto N, Chen-Yoshikawa TF. Diagnostic value and safety of endobronchial ultrasonography with a guide sheath transbronchial biopsy for diagnosing peripheral pulmonary lesions in patients with interstitial lung disease. J Thorac Dis 2022; 14:4361-4371. [DOI: 10.21037/jtd-22-809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 10/13/2022] [Indexed: 11/30/2022]
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5
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Ito T, Makino Y, Mashimo S, Baba T, Otsuki R, Yasui H, Fukui Y, Odate M, Arai Y, Okachi S, Wakahara K, Hashimoto N. Epidermal growth factor receptor mutation‐positive advanced lung adenocarcinoma presenting with acute respiratory failure diagnosed by thin bronchoscope through transnasal route under high‐concentration oxygen mask. Respirol Case Rep 2022; 10:e01007. [PMID: 35958513 PMCID: PMC9361003 DOI: 10.1002/rcr2.1007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2022] [Accepted: 06/26/2022] [Indexed: 11/16/2022] Open
Abstract
A 59‐year‐old woman complained of continuous dyspnea. Computed tomography revealed multiple pulmonary nodules, mildly small enlarged mediastinal lymph nodes and a nodule in the liver segment 8. Her dyspnea worsened with respiratory failure 4 days after presentation. Liver biopsy was not possible as she could not hold her breath; thus, we performed bronchoscopy. For biopsy, the pulmonary nodules with a positive bronchus sign were preferred over the mildly small enlarged mediastinal lymph nodes. Bronchoscopy under non‐invasive positive pressure ventilation (NPPV) or high‐flow nasal cannula (HFNC) was impossible because of the lack of equipment. Therefore, we biopsied via thin bronchoscope through nasal cavity under a high‐concentration oxygen mask. Pathological findings revealed epidermal growth factor receptor mutation‐positive lung adenocarcinoma. For patients with respiratory failure who cannot undergo bronchoscopy under NPPV or HFNC, thin bronchoscopy through the nasal cavity under a high‐concentration oxygen mask may be clinically useful to prevent hypoxaemia during the procedure
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Affiliation(s)
- Takayasu Ito
- Department of Respiratory Medicine Nagoya University Graduate School of Medicine Nagoya Japan
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Yasushi Makino
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Shuko Mashimo
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Tomoya Baba
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Ryo Otsuki
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Hirotoshi Yasui
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Yasutaka Fukui
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Mitsuru Odate
- Department of Respiratory Medicine Toyohashi Municipal Hospital Toyohashi Japan
| | - Yoshifumi Arai
- Department of Clinical Pathology Toyohashi Municipal Hospital Toyohashi Japan
| | - Shotaro Okachi
- Department of Respiratory Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine Nagoya University Graduate School of Medicine Nagoya Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine Nagoya University Graduate School of Medicine Nagoya Japan
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6
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Matsuzawa R, Morise M, Kinoshita F, Tanaka I, Koyama J, Kimura T, Kondoh Y, Tanaka T, Shima K, Hase T, Wakahara K, Ishii M, Hashimoto N. Non-invasive early prediction of immune checkpoint inhibitor efficacy in non-small-cell lung cancer patients using on-treatment serum CRP and NLR. J Cancer Res Clin Oncol 2022:10.1007/s00432-022-04300-x. [PMID: 36006483 DOI: 10.1007/s00432-022-04300-x] [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: 07/11/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022]
Abstract
PURPOSE We determined the clinical relevance of early C-reactive protein (CRP) and neutrophil-lymphocyte ratio (NLR) change in blood as surrogate markers of pro-tumor inflammation (PTI) for predicting clinical outcome of programmed cell death (PD)-1/programmed cell death ligand (PD-L) 1 inhibitor treatment in non-small-cell lung carcinoma (NSCLC). METHODS We retrospectively reviewed NSCLC patients treated with anti-PD-1 or PD-L1 inhibitors. Early CRP change was defined as the ratio of 6 weeks CRP to baseline CRP, and early NLR change was defined as that of the 6 weeks NLR to baseline NLR. PTI index was determined by combinatorial evaluation of early CRP change and early NLR change, PTI index low: both of these were low, intermediate: either of these was low, high; both of these were high. RESULTS The study included 217 patients. Early CRP change and early NLR change were both associated with PFS and OS. The combinatorial evaluation using these two markers enabled the clear stratification of PFS and OS. The median PFS in patient with PTI index low was 13.9 months, while the median PFS in those with PTI index high was 2.5 months (p < 0.01, log-rank test). The median OS in patients with PTI index low was not reached; the median OS in those with PTI index high was only 15.4 months (p < 0.01, log-rank test). CONCLUSIONS The combinatorial early CRP change and early NLR change as PTI biomarkers have clinical potential in identifying NSCLC patients who can achieve a durable response and long-term survival using PD-1/PD-L1 inhibitors.
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Affiliation(s)
- Reiko Matsuzawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Masahiro Morise
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan.
| | - Fumie Kinoshita
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Ichidai Tanaka
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Junji Koyama
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Tomoki Kimura
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Yasuhiro Kondoh
- Department of Respiratory Medicine and Allergy, Tosei General Hospital, Seto, Japan
| | - Taro Tanaka
- Department of Respiratory Medicine, Ekisaikai Hospital, Nagoya, Japan
| | - Koichiro Shima
- Department of Respiratory Medicine, Ekisaikai Hospital, Nagoya, Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Makoto Ishii
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 tsurumai, Showa-ku, Nagoya, 466-8560, Japan
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Wang QS, Edahiro R, Namkoong H, Hasegawa T, Shirai Y, Sonehara K, Tanaka H, Lee H, Saiki R, Hyugaji T, Shimizu E, Katayama K, Kanai M, Naito T, Sasa N, Yamamoto K, Kato Y, Morita T, Takahashi K, Harada N, Naito T, Hiki M, Matsushita Y, Takagi H, Ichikawa M, Nakamura A, Harada S, Sandhu Y, Kabata H, Masaki K, Kamata H, Ikemura S, Chubachi S, Okamori S, Terai H, Morita A, Asakura T, Sasaki J, Morisaki H, Uwamino Y, Nanki K, Uchida S, Uno S, Nishimura T, Ishiguro T, Isono T, Shibata S, Matsui Y, Hosoda C, Takano K, Nishida T, Kobayashi Y, Takaku Y, Takayanagi N, Ueda S, Tada A, Miyawaki M, Yamamoto M, Yoshida E, Hayashi R, Nagasaka T, Arai S, Kaneko Y, Sasaki K, Tagaya E, Kawana M, Arimura K, Takahashi K, Anzai T, Ito S, Endo A, Uchimura Y, Miyazaki Y, Honda T, Tateishi T, Tohda S, Ichimura N, Sonobe K, Sassa CT, Nakajima J, Nakano Y, Nakajima Y, Anan R, Arai R, Kurihara Y, Harada Y, Nishio K, Ueda T, Azuma M, Saito R, Sado T, Miyazaki Y, Sato R, Haruta Y, Nagasaki T, Yasui Y, Hasegawa Y, Mutoh Y, Kimura T, Sato T, Takei R, Hagimoto S, Noguchi Y, Yamano Y, Sasano H, Ota S, Nakamori Y, Yoshiya K, Saito F, Yoshihara T, Wada D, Iwamura H, Kanayama S, Maruyama S, Yoshiyama T, Ohta K, Kokuto H, Ogata H, Tanaka Y, Arakawa K, Shimoda M, Osawa T, Tateno H, Hase I, Yoshida S, Suzuki S, Kawada M, Horinouchi H, Saito F, Mitamura K, Hagihara M, Ochi J, Uchida T, Baba R, Arai D, Ogura T, Takahashi H, Hagiwara S, Nagao G, Konishi S, Nakachi I, Murakami K, Yamada M, Sugiura H, Sano H, Matsumoto S, Kimura N, Ono Y, Baba H, Suzuki Y, Nakayama S, Masuzawa K, Namba S, Shiroyama T, Noda Y, Niitsu T, Adachi Y, Enomoto T, Amiya S, Hara R, Yamaguchi Y, Murakami T, Kuge T, Matsumoto K, Yamamoto Y, Yamamoto M, Yoneda M, Tomono K, Kato K, Hirata H, Takeda Y, Koh H, Manabe T, Funatsu Y, Ito F, Fukui T, Shinozuka K, Kohashi S, Miyazaki M, Shoko T, Kojima M, Adachi T, Ishikawa M, Takahashi K, Inoue T, Hirano T, Kobayashi K, Takaoka H, Watanabe K, Miyazawa N, Kimura Y, Sado R, Sugimoto H, Kamiya A, Kuwahara N, Fujiwara A, Matsunaga T, Sato Y, Okada T, Hirai Y, Kawashima H, Narita A, Niwa K, Sekikawa Y, Nishi K, Nishitsuji M, Tani M, Suzuki J, Nakatsumi H, Ogura T, Kitamura H, Hagiwara E, Murohashi K, Okabayashi H, Mochimaru T, Nukaga S, Satomi R, Oyamada Y, Mori N, Baba T, Fukui Y, Odate M, Mashimo S, Makino Y, Yagi K, Hashiguchi M, Kagyo J, Shiomi T, Fuke S, Saito H, Tsuchida T, Fujitani S, Takita M, Morikawa D, Yoshida T, Izumo T, Inomata M, Kuse N, Awano N, Tone M, Ito A, Nakamura Y, Hoshino K, Maruyama J, Ishikura H, Takata T, Odani T, Amishima M, Hattori T, Shichinohe Y, Kagaya T, Kita T, Ohta K, Sakagami S, Koshida K, Hayashi K, Shimizu T, Kozu Y, Hiranuma H, Gon Y, Izumi N, Nagata K, Ueda K, Taki R, Hanada S, Kawamura K, Ichikado K, Nishiyama K, Muranaka H, Nakamura K, Hashimoto N, Wakahara K, Koji S, Omote N, Ando A, Kodama N, Kaneyama Y, Maeda S, Kuraki T, Matsumoto T, Yokote K, Nakada TA, Abe R, Oshima T, Shimada T, Harada M, Takahashi T, Ono H, Sakurai T, Shibusawa T, Kimizuka Y, Kawana A, Sano T, Watanabe C, Suematsu R, Sageshima H, Yoshifuji A, Ito K, Takahashi S, Ishioka K, Nakamura M, Masuda M, Wakabayashi A, Watanabe H, Ueda S, Nishikawa M, Chihara Y, Takeuchi M, Onoi K, Shinozuka J, Sueyoshi A, Nagasaki Y, Okamoto M, Ishihara S, Shimo M, Tokunaga Y, Kusaka Y, Ohba T, Isogai S, Ogawa A, Inoue T, Fukuyama S, Eriguchi Y, Yonekawa A, Kan-o K, Matsumoto K, Kanaoka K, Ihara S, Komuta K, Inoue Y, Chiba S, Yamagata K, Hiramatsu Y, Kai H, Asano K, Oguma T, Ito Y, Hashimoto S, Yamasaki M, Kasamatsu Y, Komase Y, Hida N, Tsuburai T, Oyama B, Takada M, Kanda H, Kitagawa Y, Fukuta T, Miyake T, Yoshida S, Ogura S, Abe S, Kono Y, Togashi Y, Takoi H, Kikuchi R, Ogawa S, Ogata T, Ishihara S, Kanehiro A, Ozaki S, Fuchimoto Y, Wada S, Fujimoto N, Nishiyama K, Terashima M, Beppu S, Yoshida K, Narumoto O, Nagai H, Ooshima N, Motegi M, Umeda A, Miyagawa K, Shimada H, Endo M, Ohira Y, Watanabe M, Inoue S, Igarashi A, Sato M, Sagara H, Tanaka A, Ohta S, Kimura T, Shibata Y, Tanino Y, Nikaido T, Minemura H, Sato Y, Yamada Y, Hashino T, Shinoki M, Iwagoe H, Takahashi H, Fujii K, Kishi H, Kanai M, Imamura T, Yamashita T, Yatomi M, Maeno T, Hayashi S, Takahashi M, Kuramochi M, Kamimaki I, Tominaga Y, Ishii T, Utsugi M, Ono A, Tanaka T, Kashiwada T, Fujita K, Saito Y, Seike M, Watanabe H, Matsuse H, Kodaka N, Nakano C, Oshio T, Hirouchi T, Makino S, Egi M, Omae Y, Nannya Y, Ueno T, Takano T, Katayama K, Ai M, Kumanogoh A, Sato T, Hasegawa N, Tokunaga K, Ishii M, Koike R, Kitagawa Y, Kimura A, Imoto S, Miyano S, Ogawa S, Kanai T, Fukunaga K, Okada Y. The whole blood transcriptional regulation landscape in 465 COVID-19 infected samples from Japan COVID-19 Task Force. Nat Commun 2022; 13:4830. [PMID: 35995775 PMCID: PMC9395416 DOI: 10.1038/s41467-022-32276-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 07/25/2022] [Indexed: 11/12/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is a recently-emerged infectious disease that has caused millions of deaths, where comprehensive understanding of disease mechanisms is still unestablished. In particular, studies of gene expression dynamics and regulation landscape in COVID-19 infected individuals are limited. Here, we report on a thorough analysis of whole blood RNA-seq data from 465 genotyped samples from the Japan COVID-19 Task Force, including 359 severe and 106 non-severe COVID-19 cases. We discover 1169 putative causal expression quantitative trait loci (eQTLs) including 34 possible colocalizations with biobank fine-mapping results of hematopoietic traits in a Japanese population, 1549 putative causal splice QTLs (sQTLs; e.g. two independent sQTLs at TOR1AIP1), as well as biologically interpretable trans-eQTL examples (e.g., REST and STING1), all fine-mapped at single variant resolution. We perform differential gene expression analysis to elucidate 198 genes with increased expression in severe COVID-19 cases and enriched for innate immune-related functions. Finally, we evaluate the limited but non-zero effect of COVID-19 phenotype on eQTL discovery, and highlight the presence of COVID-19 severity-interaction eQTLs (ieQTLs; e.g., CLEC4C and MYBL2). Our study provides a comprehensive catalog of whole blood regulatory variants in Japanese, as well as a reference for transcriptional landscapes in response to COVID-19 infection. Genetic mechanisms influencing COVID-19 susceptibility are not well understood. Here, the authors analyzed whole blood RNA-seq data of 465 Japanese individuals with COVID-19, highlighting thousands of fine-mapped variants affecting expression and splicing of genes, as well as the presence of COVID-19 severity-interaction eQTLs.
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Majima S, Wakahara K, Iwano S, Kinoshita F, Nakamura M, Hashimoto N, Fujishiro M, Hasegawa Y. Airway involvement in inflammatory bowel disease: Inflammatory bowel disease patients have bronchial wall thickening. Respir Investig 2022; 60:713-719. [PMID: 35821190 DOI: 10.1016/j.resinv.2022.06.003] [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: 01/12/2022] [Revised: 05/11/2022] [Accepted: 06/05/2022] [Indexed: 11/29/2022]
Abstract
BACKGROUND Recent epidemiological studies have revealed a high co-occurrence of asthma or COPD and IBD. Herein, we examined the impact of IBD on the bronchial wall structure using three-dimensional computed tomography (3D-CT). METHODS Subjects who were diagnosed with IBD and had undergone chest CT were recruited from consecutive medical records. Screening chest CT scan data during the same period were used as normal controls. Airway dimensions were measured by validated software. RESULTS Overall, 136 IBD and 99 control subjects were recruited. The bronchial walls of patients with IBD were significantly thicker than those of control subjects. Multiple linear regression analysis showed that Crohn's disease and ulcerative colitis were independent determinants of wall area percentage after adjusting for age, sex, and smoking status. CONCLUSIONS Airway walls in patients with IBD were thicker than those in normal control subjects. Airway involvement in IBD may be more frequent than recognized.
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Affiliation(s)
- Suguru Majima
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Shingo Iwano
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumie Kinoshita
- Department of Advanced Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Masanao Nakamura
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mitsuhiro Fujishiro
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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Iwama S, Kobayashi T, Yasuda Y, Okuji T, Ito M, Ando M, Zhou X, Yamagami A, Onoue T, Kawaguchi Y, Miyata T, Sugiyama M, Takagi H, Hagiwara D, Suga H, Banno R, Hase T, Morise M, Wakahara K, Yokota K, Kato M, Nishio N, Tanaka C, Miyata K, Ogura A, Ito T, Sawada T, Shimokata T, Niimi K, Ohka F, Ishigami M, Gotoh M, Hashimoto N, Saito R, Kiyoi H, Kajiyama H, Ando Y, Hibi H, Sone M, Akiyama M, Kodera Y, Arima H. Increased Risk of Thyroid Dysfunction by PD-1 and CTLA-4 Blockade in Patients Without Thyroid Autoantibodies at Baseline. J Clin Endocrinol Metab 2022; 107:e1620-e1630. [PMID: 34791304 DOI: 10.1210/clinem/dgab829] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/22/2021] [Indexed: 11/19/2022]
Abstract
BACKGROUND Previous studies showed that although the risk of thyroid dysfunction [thyroid immune-related adverse events (irAEs)] induced by anti-programmed cell death-1 antibodies (PD-1-Ab) was as low as 2% to 7% in patients negative for anti-thyroid antibodies (ATAs) at baseline, it was much higher (30%-50%) in patients positive for ATAs. However, whether a similar increase occurs with combination therapy using PD-1-Ab plus anti-cytotoxic T-lymphocyte antigen-4 antibody (CTLA-4-Ab) is unknown. METHODS A total of 451 patients with malignancies treated with PD-1-Ab, CTLA-4-Ab, or a combination of PD-1-Ab and CTLA-4-Ab (PD-1/CTLA-4-Abs) were evaluated for ATAs at baseline and for thyroid function every 6 weeks for 24 weeks after treatment initiation and then observed until the last clinical visit. RESULTS Of the 451 patients, 51 developed thyroid irAEs after immunotherapy [41 of 416 (9.9%) treated with PD-1-Ab, 0 of 8 (0%) treated with CTLA-4-Ab, and 10 of 27 (37.0%) treated with PD-1/CTLA-4-Abs]. The cumulative incidence of thyroid irAEs was significantly higher in patients who were positive vs negative for ATAs at baseline after both PD-1-Ab [28/87 (32.2%) vs 13/329 (4.0%), P < 0.001] and PD-1/CTLA-4-Abs [6/10 (60.0%) vs 4/17 (23.5%), P < 0.05] treatments. The risk of thyroid irAEs induced by PD-1/CTLA-4Abs, which was significantly higher than that induced by PD-1-Ab, in patients negative for ATAs at baseline was not statistically different from that induced by PD-1-Ab in patients positive for ATAs at baseline. CONCLUSIONS This study showed that the incidence of thyroid irAEs was high and not negligible after PD-1/CTLA-4-Abs treatment even in patients negative for ATAs at baseline.
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Affiliation(s)
- Shintaro Iwama
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoko Kobayashi
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Yasuda
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayuki Okuji
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaaki Ito
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiko Ando
- Center for Advanced Medicine and Clinical Research, Nagoya University Hospital, Nagoya, Japan
| | - Xin Zhou
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ayana Yamagami
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takeshi Onoue
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yohei Kawaguchi
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takashi Miyata
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mariko Sugiyama
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Takagi
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Daisuke Hagiwara
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hidetaka Suga
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryoichi Banno
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
- Research Center of Health, Physical Fitness and Sports, Nagoya University, Nagoya, Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahiro Morise
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kenji Yokota
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Kato
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoki Nishio
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Chie Tanaka
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazushi Miyata
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsushi Ogura
- Division of Surgical Oncology, Department of Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takanori Ito
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tsunaki Sawada
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Tomoya Shimokata
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Japan
| | - Kaoru Niimi
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Fumiharu Ohka
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Momokazu Gotoh
- Department of Urology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ryuta Saito
- Department of Neurosurgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hitoshi Kiyoi
- Department of Hematology and Oncology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroaki Kajiyama
- Department of Obstetrics and Gynecology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuichi Ando
- Department of Clinical Oncology and Chemotherapy, Nagoya University Hospital, Nagoya, Japan
| | - Hideharu Hibi
- Department of Oral and Maxillofacial Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Michihiko Sone
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masashi Akiyama
- Department of Dermatology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuhiro Kodera
- Department of Gastroenterological Surgery (Surgery II), Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Hiroshi Arima
- Department of Endocrinology and Diabetes, Nagoya University Graduate School of Medicine, Nagoya, Japan
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10
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Matsuzawa R, Morise M, Tanaka I, Hayai S, Tamiya Y, Koyama J, Hase T, Wakahara K, Kim D, Shimoyama Y, Hashimoto N. Amelanotic Malignant Melanoma with a BRAF V600E Mutation Mimicking Primary Lung Cancer. Intern Med 2022; 61:703-708. [PMID: 34433708 PMCID: PMC8943366 DOI: 10.2169/internalmedicine.6657-20] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
Amelanotic melanoma is a rare type of melanoma that shows little or no melanin pigmentation. When tumor lesions are not detected in cutaneous sites, the presence of melanin is the hallmark sign of malignant melanoma. We herein report a case of amelanotic melanoma with a BRAF V600E mutation mimicking primary lung cancer that was finally diagnosed on an autopsy. The current case suggests important caveats for the differential diagnosis of patients with BRAF V600E mutation-positive poorly differentiated lung tumors. In terms of the pathological diagnosis, routine immunohistochemical staining may be useful, especially in patients with a poorly differentiated lung tumor without TTF-1 expression.
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Affiliation(s)
- Reiko Matsuzawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Masahiro Morise
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Ichidai Tanaka
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Shunsaku Hayai
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Yutaro Tamiya
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Junji Koyama
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Deoksu Kim
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Japan
| | - Yoshie Shimoyama
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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11
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Fukihara J, Maiolo S, Kovac J, Sakamoto K, Wakahara K, Hashimoto N, Reynolds PN. Overexpression of bone morphogenetic protein receptor type 2 suppresses transforming growth factor β-induced profibrotic responses in lung fibroblasts. Exp Lung Res 2022; 48:35-51. [PMID: 35037801 DOI: 10.1080/01902148.2021.2024301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
MATERIALS AND METHODS We investigated BMPR2 expression in pulmonary fibrosis and TGF-β/BMP signaling in lung fibroblasts. Then we evaluated the impact of BMPR2 upregulation using adenoviral transduction on TGF-β-induced Smad2/3 phosphorylation and fibronectin production in lung fibroblasts. RESULTS BMPR2 was distributed in airway epithelium and alveolar walls in rat lungs. BMPR2 expression was decreased in fibrotic lesions in the lungs of rats with bleomycin-induced pulmonary fibrosis and in human lung fibroblasts (HLFs) stimulated with TGF-β. Although Smad2/3 phosphorylation and fibronectin production were not suppressed solely by BMPs, phosphorylated Smad2/3 was decreased in BMPR2-transduced cells even without BMP stimulation. Fibronectin was decreased only when BMPR2-transduced HLFs were stimulated with BMP7 (but not BMP4). Similar results were also observed in IPF patient HLFs and rat lung fibroblasts. CONCLUSIONS BMPR2 expression was reduced in fibrotic lungs and lung fibroblasts stimulated with TGF-β. BMPR2 transduction to lung fibroblasts reduced Smad2/3 phosphorylation, and reduced fibronectin production when treated with BMP7. Upregulation of BMPR2 may be a possible strategy for treating pulmonary fibrosis.
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Affiliation(s)
- Jun Fukihara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan.,Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Suzanne Maiolo
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Jessica Kovac
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Koji Sakamoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Aichi, Japan
| | - Paul N Reynolds
- Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia.,Department of Thoracic Medicine, Royal Adelaide Hospital, Adelaide, South Australia, Australia
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12
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Nishio N, Hiramatsu M, Goto Y, Shindo Y, Yamamoto T, Jingushi N, Wakahara K, Sone M. Surgical strategy and optimal timing of tracheostomy in patients with COVID-19: Early experiences in Japan. Auris Nasus Larynx 2021; 48:518-524. [PMID: 33272716 PMCID: PMC7674116 DOI: 10.1016/j.anl.2020.11.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 10/23/2020] [Accepted: 11/12/2020] [Indexed: 12/23/2022]
Abstract
OBJECTIVE Tracheostomy is an important surgical procedure for coronavirus disease-2019 (COVID-19) patients who underwent prolonged tracheal intubation. Surgical indication of tracheostomy is greatly affected by the general condition of the patient, comorbidity, prognosis, hospital resources, and staff experience. Thus, the optimal timing of tracheostomy remains controversial. METHODS We reviewed our early experience with COVID-19 patients who underwent tracheostomy at one tertiary hospital in Japan from February to September 2020 and analyzed the timing of tracheostomy, operative results, and occupational infection in healthcare workers (HCWs). RESULTS Of 16 patients received tracheal intubation with confirmed severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection, five patients (31%) received surgical tracheostomy in our hospital. The average consultation time for surgical tracheostomy was 7.4 days (range, 6 - 9 days) from the COVID-19 team to the otolaryngologist. The duration from tracheal intubation to tracheostomy ranged from 14 to 27 days (average, 20 days). The average time of tracheostomy was 27 min (range, 17 - 39 min), and post-wound bleeding occurred in only one patient. No significant differences in hemoglobin (Hb) levels were found between the pre- and postoperative periods (mean: 10.2 vs. 10.2 g/dl, p = 0.93). Similarly, no difference was found in white blood cell (WBC) count (mean: 12,200 vs. 9,900 cells /µl, p = 0.25). After the tracheostomy, there was no occupational infection among the HCWs who assisted the tracheostomy patients during the perioperative period. CONCLUSION We proposed a modified weaning protocol and surgical indications of tracheostomy for COVID-19 patients and recommend that an optimal timing for tracheostomy in COVID-19 patients of 2 - 3 weeks after tracheal intubation, from our early experiences in Japan. An experienced multi-disciplinary tracheostomy team is essential to perform a safe tracheostomy in patients with COVID-19 and to minimize the risk of occupational infection in HCWs.
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Affiliation(s)
- Naoki Nishio
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan.
| | - Mariko Hiramatsu
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yukari Goto
- Department of Emergency and Critical Care Medicine, Nagoya University Hospital, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Yuichiro Shindo
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Takanori Yamamoto
- Department of Emergency and Critical Care Medicine, Nagoya University Hospital, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Naruhiro Jingushi
- Department of Emergency and Critical Care Medicine, Nagoya University Hospital, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
| | - Michihiko Sone
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, 65, Tsurumai-cho, Showa-ku, Nagoya 466-8550, Japan
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13
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Nakahara Y, Hashimoto N, Sakamoto K, Enomoto A, Adams TS, Yokoi T, Omote N, Poli S, Ando A, Wakahara K, Suzuki A, Inoue M, Hara A, Mizutani Y, Imaizumi K, Kawabe T, Rosas IO, Takahashi M, Kaminski N, Hasegawa Y. Fibroblasts positive for meflin have anti-fibrotic property in pulmonary fibrosis. Eur Respir J 2021; 58:13993003.03397-2020. [PMID: 34049947 DOI: 10.1183/13993003.03397-2020] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2020] [Accepted: 05/07/2021] [Indexed: 11/05/2022]
Abstract
The prognosis of elderly individuals with idiopathic pulmonary fibrosis (IPF) remains poor. Fibroblastic foci, in which aggregates of proliferating fibroblasts and myofibroblasts are involved, are the pathological hallmark lesions in IPF to represent focal areas of active fibrogenesis. Fibroblast heterogeneity in fibrotic lesions hampers the discovery of the pathogenesis of pulmonary fibrosis. Therefore, to determine of the pathogenesis of IPF, identification of functional fibroblasts is warranted. This study was aimed to determine the role of fibroblasts positive for meflin, identified as a potential marker for mesenchymal stromal cells, during the development of pulmonary fibrosis. We characterised meflin-positive cells in a single cell atlas established by single-cell RNA sequencing (scRNA-seq)-based profiling of 243 472 cells from 32 IPF lungs and 29 normal lung samples. scRNA-seq combined with in situ RNA hybridisation identified proliferating fibroblasts positive for meflin in fibroblastic foci, not dense fibrosis, of fibrotic lungs in IPF patients. We determined the role of fibroblasts positive for meflin using bleomycin (BLM)-induced pulmonary fibrosis. A BLM-induced lung fibrosis model for meflin-deficient mice showed that fibroblasts positive for meflin had anti-fibrotic property to prevent pulmonary fibrosis. Although transforming growth factor-β-induced fibrogenesis and cell senescence with senescence-associated secretory phenotype were exacerbated in fibroblasts via the repression or lack of meflin, these were inhibited in meflin-deficient fibroblasts with meflin reconstitution. These findings provide evidence to show the biological importance of meflin expression on fibroblasts and myofibroblasts in the active fibrotic region of pulmonary fibrosis.
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Affiliation(s)
- Yoshio Nakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,These authors contributed equally to this work
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan .,These authors contributed equally to this work
| | - Koji Sakamoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,These authors contributed equally to this work
| | - Atsushi Enomoto
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Taylor S Adams
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT, United States
| | | | - Norihito Omote
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT, United States
| | - Sergio Poli
- Department of Medicine, Mount Sinai Medical Center, Miami Beach, FL, USA
| | - Akira Ando
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Atsushi Suzuki
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masahide Inoue
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akitoshi Hara
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Cardiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yasuyuki Mizutani
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Gastroenterology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kazuyoshi Imaizumi
- Department of Respiratory Medicine and Allergy, Fujita Health University, Toyoake, Japan
| | - Tsutomu Kawabe
- Department of Pathophysiological Laboratory Sciences, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Ivan O Rosas
- Department of Medicine, Section of Pulmonary, Critical Care and Sleep Medicine, Baylor College of Medicine, Houston, TX, USA
| | - Masahide Takahashi
- Department of Pathology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naftali Kaminski
- Section of Pulmonary, Critical Care and Sleep Medicine, Yale School of Medicine, New Haven, CT, United States
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14
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Nishine H, Hiramoto T, Handa H, Inoue T, Wakahara K, Saka H, Miyazawa T, Mineshita M. Assessment of Extensive Airway Obstruction Using Point-by-Point Lateral Pressure Measurements during Bronchoscopy. Respiration 2021; 100:611-617. [PMID: 33946078 DOI: 10.1159/000515442] [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: 10/13/2020] [Accepted: 02/22/2021] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND The positioning of the stent at the flow-limiting segment is crucial for patients with extensive airway obstruction to relieve dyspnea. However, CT and flow-volume curves cannot detect the area of maximal obstruction. OBJECTIVES The aim of this study is to physiologically evaluate extensive airway obstruction during interventional bronchoscopy. METHODS We prospectively measured point-by-point lateral airway pressure (Plat) at multiple points from the lower lobe bronchus to the upper trachea using a double-lumen catheter in 5 patients. The site of maximal obstruction was evaluated continuously to measure point-by-point Plat at multiple points when the airway catheter was withdrawn from the lower lobe bronchus to the upper trachea. RESULTS Remarkable pressure differences occurred at the site of maximal obstruction assessed by point-by-point Plat measurements. After initial stenting in 1 case, migration of the maximal obstruction to a nonstented segment of the weakened airway was seen with extensive stenosis from the trachea to the bronchi. In the second case, in addition to radiological analysis, point-by-point Plat measurements could identify the location of the maximal obstruction which contributed to dyspnea. CONCLUSIONS Point-by-point Plat measurement could be used to detect the site of maximal obstruction physiologically. Furthermore, Plat measurement could assess the need for additional procedures in real time in patients with extensive airway obstruction.
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Affiliation(s)
- Hiroki Nishine
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Takehiko Hiramoto
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Hiroshi Handa
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Takeo Inoue
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Keiko Wakahara
- Division of Respirology, Department of Internal Medicine, Nagoya University School of Medicine, Nagoya, Japan
| | - Hideo Saka
- Departments of Respiratory Medicine and Medical Oncology, National Organization Nagoya Medical Center, Nagoya, Japan
| | - Teruomi Miyazawa
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
| | - Masamichi Mineshita
- Division of Respiratory Medicine, Department of Internal Medicine, St. Marianna University School of Medicine, Kawasaki, Japan
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15
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Ito T, Okachi S, Ishikawa Y, Shimada S, Wakahara K, Hashimoto N. Unusual presentation of recurrent follicular lymphoma as diffuse granular shadow. Respirol Case Rep 2021; 9:e00710. [PMID: 33628450 PMCID: PMC7898273 DOI: 10.1002/rcr2.710] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 12/12/2020] [Accepted: 12/25/2020] [Indexed: 11/12/2022] Open
Abstract
A 75-year-old man was diagnosed with advanced follicular lymphoma because of enlarged cervical lymph nodes. He received chemotherapy and was in complete remission for four years. However, after four years, he developed diffuse lymphadenopathy in the abdominal and iliac area suspected to be recurrent follicular lymphoma. At the time, he was asymptomatic and did not have any accompanying lung lesions. Due to his asymptomatic state, careful monitoring was chosen. Later, he developed diffuse granular shadow in the lung fields. A definite diagnosis was difficult to achieve without histological findings. Therefore, transbronchial lung biopsy of the lesions was performed. The pathology and immunohistochemistry of the lesions revealed recurrent follicular lymphoma. Although the frequency of recurrent follicular lymphoma presenting with diffuse granular shadow is uncommon, recurrent malignant lymphoma should be considered as a differential diagnosis in case with a history of malignant lymphoma.
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Affiliation(s)
- Takayasu Ito
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Shotaro Okachi
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Yuichi Ishikawa
- Department of Hematology and OncologyNagoya University Graduate School of MedicineNagoyaJapan
| | - Satoko Shimada
- Department of Pathology and Laboratory MedicineNagoya University HospitalNagoyaJapan
| | - Keiko Wakahara
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
| | - Naozumi Hashimoto
- Department of Respiratory MedicineNagoya University Graduate School of MedicineNagoyaJapan
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16
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Hayashi H, Fukutomi Y, Mitsui C, Kajiwara K, Watai K, Kamide Y, Iwata M, Nagayama K, Nakamura Y, Hamada Y, Tomita Y, Sekiya K, Tsuburai T, Mori A, Izuhara K, Wakahara K, Hashimoto N, Hasegawa Y, Taniguchi M. Efficacy of Omalizumab against Aspirin-hypersensitivity and Overproduction of Cysteinyl Leukotrienes in Aspirin-exacerbated Respiratory Disease: A Randomized Trial. J Allergy Clin Immunol 2021. [DOI: 10.1016/j.jaci.2020.12.226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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17
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Suzuki M, Cao K, Kato S, Mizutani N, Tanaka K, Arima C, Tai MC, Nakatani N, Yanagisawa K, Takeuchi T, Shi H, Mizutani Y, Niimi A, Taniguchi T, Fukui T, Yokoi K, Wakahara K, Hasegawa Y, Mizutani Y, Iwaki S, Fujii S, Satou A, Tamiya-Koizumi K, Murate T, Kyogashima M, Tomida S, Takahashi T. CERS6 required for cell migration and metastasis in lung cancer. J Cell Mol Med 2020; 24:11949-11959. [PMID: 32902157 PMCID: PMC7579715 DOI: 10.1111/jcmm.15817] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 07/19/2020] [Accepted: 07/30/2020] [Indexed: 02/01/2023] Open
Abstract
Sphingolipids constitute a class of bio‐reactive molecules that transmit signals and exhibit a variety of physical properties in various cell types, though their functions in cancer pathogenesis have yet to be elucidated. Analyses of gene expression profiles of clinical specimens and a panel of cell lines revealed that the ceramide synthase gene CERS6 was overexpressed in non–small‐cell lung cancer (NSCLC) tissues, while elevated expression was shown to be associated with poor prognosis and lymph node metastasis. NSCLC profile and in vitro luciferase analysis results suggested that CERS6 overexpression is promoted, at least in part, by reduced miR‐101 expression. Under a reduced CERS6 expression condition, the ceramide profile became altered, which was determined to be associated with decreased cell migration and invasion activities in vitro. Furthermore, CERS6 knockdown suppressed RAC1‐positive lamellipodia/ruffling formation and attenuated lung metastasis efficiency in mice, while forced expression of CERS6 resulted in an opposite phenotype in examined cell lines. Based on these findings, we consider that ceramide synthesis by CERS6 has important roles in lung cancer migration and metastasis.
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Affiliation(s)
- Motoshi Suzuki
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan.,Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Ke Cao
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Seiichi Kato
- Department of Pathology and Laboratory Medicine, Nagoya University Hospital, Nagoya, Japan
| | - Naoki Mizutani
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Kouji Tanaka
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Chinatsu Arima
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Mei Chee Tai
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Norie Nakatani
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoshi Yanagisawa
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Toshiyuki Takeuchi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Hanxiao Shi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Yasuyoshi Mizutani
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Atsuko Niimi
- Department of Molecular Oncology, Fujita Health University, Toyoake, Japan
| | - Tetsuo Taniguchi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Takayuki Fukui
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kohei Yokoi
- Department of Thoracic Surgery, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yukiko Mizutani
- Laboratory of Biomembrane and Biofunctional Chemistry, Faculty of Advanced Life Science, Hokkaido University, Sapporo, Japan
| | - Soichiro Iwaki
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Satoshi Fujii
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Akira Satou
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Keiko Tamiya-Koizumi
- Department of Molecular and Cellular Pathobiology and Therapeutics, Graduate School of Pharmaceutical Sciences, Nagoya City University, Nagoya, Japan
| | - Takashi Murate
- Department of Medical Technology, Nagoya University Graduate School of Health Sciences, Nagoya, Japan
| | - Mamoru Kyogashima
- Division of Microbiology and Molecular Cell Biology, Nihon Pharmaceutical University, Saitama, Japan
| | - Shuta Tomida
- Department of Biobank, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Japan
| | - Takashi Takahashi
- Division of Molecular Carcinogenesis, Nagoya University Graduate School of Medicine, Nagoya, Japan
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18
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Hayashi H, Fukutomi Y, Mitsui C, Kajiwara K, Watai K, Kamide Y, Nakamura Y, Hamada Y, Tomita Y, Sekiya K, Tsuburai T, Izuhara K, Wakahara K, Hashimoto N, Hasegawa Y, Taniguchi M. Omalizumab for Aspirin Hypersensitivity and Leukotriene Overproduction in Aspirin-exacerbated Respiratory Disease. A Randomized Controlled Trial. Am J Respir Crit Care Med 2020; 201:1488-1498. [PMID: 32142372 PMCID: PMC7301746 DOI: 10.1164/rccm.201906-1215oc] [Citation(s) in RCA: 59] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Rationale: Aspirin-exacerbated respiratory disease is characterized by severe asthma, nonsteroidal antiinflammatory drug hypersensitivity, nasal polyposis, and leukotriene overproduction. Systemic corticosteroid therapy does not completely suppress lifelong aspirin hypersensitivity. Omalizumab efficacy against aspirin-exacerbated respiratory disease has not been investigated in a randomized manner. Objectives: To evaluate omalizumab efficacy against aspirin hypersensitivity, leukotriene E4 overproduction, and symptoms during an oral aspirin challenge in patients with aspirin-exacerbated respiratory disease using a randomized design. Methods: We performed a double-blind, randomized, crossover, placebo-controlled, single-center study at Sagamihara National Hospital between August 2015 and December 2016. Atopic patients (20–79 yr old) with aspirin-exacerbated respiratory disease diagnosed by systemic aspirin challenge were randomized (1:1) to a 3-month treatment with omalizumab or placebo, followed by a >18-week washout period (crossover design). The primary endpoint was the difference in area under logarithm level of urinary leukotriene E4 concentration versus time curve in the intent-to-treat population during an oral aspirin challenge. Measurements and Main Results: Sixteen patients completed the study and were included in the analysis. The area under the logarithm level of urinary leukotriene E4 concentration versus time curve during an oral aspirin challenge was significantly lower in the omalizumab phase (median [interquartile range], 51.1 [44.5–59.8]) than in the placebo phase (80.8 [interquartile range, 65.4–87.8]) (P < 0.001). Ten of 16 patients (62.5%) developed oral aspirin tolerance up to cumulative doses of 930 mg in the omalizumab phase (P < 0.001). Conclusions: Omalizumab treatment inhibited urinary leukotriene E4 overproduction and upper/lower respiratory tract symptoms during an oral aspirin challenge, resulting in aspirin tolerance in 62.5% of the patients with aspirin-exacerbated respiratory disease.
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Affiliation(s)
- Hiroaki Hayashi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yuma Fukutomi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Chihiro Mitsui
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Keiichi Kajiwara
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Kentaro Watai
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Yosuke Kamide
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Yuto Nakamura
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Allergy and Clinical Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yuto Hamada
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Allergy and Clinical Immunology, Juntendo University Graduate School of Medicine, Tokyo, Japan
| | - Yasuhiro Tomita
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Kiyoshi Sekiya
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan
| | - Takahiro Tsuburai
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Department of Respiratory Medicine, St. Marianna University School of Medicine, Yokohama City Seibu Hospital, Yokohama, Japan
| | - Kenji Izuhara
- Division of Medical Biochemistry, Department of Biomolecular Sciences, Saga Medical School, Saga, Japan; and
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masami Taniguchi
- Clinical Research Center for Allergy and Rheumatology, National Hospital Organization Sagamihara National Hospital, Sagamihara, Japan.,Center for Immunology and Allergology, Shonan Kamakura General Hospital, Kamakura, Japan
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19
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Majima S, Wakahara K, Nishio T, Nishio N, Teranishi M, Iwano S, Hirakawa A, Hashimoto N, Sone M, Hasegawa Y. Bronchial wall thickening is associated with severity of chronic rhinosinusitis. Respir Med 2020; 170:106024. [PMID: 32843166 DOI: 10.1016/j.rmed.2020.106024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2020] [Revised: 05/08/2020] [Accepted: 05/11/2020] [Indexed: 10/24/2022]
Abstract
BACKGROUND Though the relationship between chronic rhinosinusitis (CRS) and lower airway diseases is well recognized, the impact of CRS on bronchial wall structure has not been elucidated. Here, we evaluated the bronchial wall structure of CRS patients with or without diagnosed airway diseases by three-dimensional computed tomography (3D-CT). METHODS Subjects who underwent both chest CT and sinus CT within a year were recruited from consecutive medical records. CRS was defined as a Lund-Mackay score (LMS) of over 5 points. Airway dimensions were measured using validated software. Standard blood tests and pulmonary function tests were performed, and their correlation with airway thickness was examined. RESULTS One-hundred-seventy-two patients were recruited (93 CRS subjects and 79 non-CRS subjects). The bronchial walls of CRS subjects were significantly thicker than those of non-CRS subjects. CRS and asthma were related to bronchial wall thickening by multivariate linear regression analysis adjusted for age, smoking status, and chest symptoms. In addition, LMS was significantly correlated with bronchial wall thickening. CONCLUSION Airway walls in CRS subjects were thicker than those in non-CRS subjects and associated with the severity of CRS. These data indicate strong relationship between upper and lower airways regardless of chest symptoms or diagnosed airway diseases.
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Affiliation(s)
- Suguru Majima
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan.
| | - Tomoko Nishio
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Naoki Nishio
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Masaaki Teranishi
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Shingo Iwano
- Department of Radiology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Akihiro Hirakawa
- Department of Biostatistics and Bioinformatics, Graduate School of Medicine, The University of Tokyo, Hongo, Tokyo, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Michihiko Sone
- Department of Otorhinolaryngology, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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20
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Ito T, Okachi S, Ikenouchi T, Ushijima F, Ohashi T, Ogawa M, Nagahama M, Wakahara K, Hashimoto N. Endobronchial ultrasound-guided transbronchial needle aspiration under non-invasive positive pressure for the diagnosis of lung metastasis due to renal cell carcinoma in a patient with respiratory failure. Respir Med Case Rep 2020; 29:101028. [PMID: 32140404 PMCID: PMC7047012 DOI: 10.1016/j.rmcr.2020.101028] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2019] [Revised: 12/11/2019] [Accepted: 02/20/2020] [Indexed: 11/30/2022] Open
Abstract
A 65-year-old man with chronic respiratory failure caused by chronic obstructive pulmonary disease, had a pulmonary nodule adjacent to the inlet of right B1 and B3. The patient had undergone a surgery for right renal cell carcinoma and colon cancer 6 years prior. We attempted endobronchial ultrasound-guided transbronchial needle aspiration under non-invasive positive pressure ventilation for diagnosis, with rapid on-site cytology, which was performed without complications. The histological findings revealed lung metastasis involving renal cell carcinoma. Endobronchial ultrasound-guided transbronchial needle aspiration under non-invasive positive pressure ventilation is useful for diagnosing lesions that require access up to the segmental bronchus in patients with respiratory failure.
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Affiliation(s)
- Takayasu Ito
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Department of Respiratory Medicine, Handa City Hospital, Handa, Japan
| | - Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
- Corresponding author. Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, 65 Tsurumai-cho, Showa Ward, Nagoya, Aichi, 466-8560, Japan.
| | | | - Futoshi Ushijima
- Department of Respiratory Medicine, Handa City Hospital, Handa, Japan
| | - Takamasa Ohashi
- Department of Respiratory Medicine, Handa City Hospital, Handa, Japan
| | - Masahiro Ogawa
- Department of Respiratory Medicine, Handa City Hospital, Handa, Japan
| | - Masato Nagahama
- Department of Histopathology, Handa City Hospital, Handa, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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21
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Suzuki M, Cao K, Kato S, Komizu Y, Mizutani N, Tanaka K, Arima C, Tai MC, Yanagisawa K, Togawa N, Shiraishi T, Usami N, Taniguchi T, Fukui T, Yokoi K, Wakahara K, Hasegawa Y, Mizutani Y, Igarashi Y, Inokuchi JI, Iwaki S, Fujii S, Satou A, Matsumoto Y, Ueoka R, Tamiya-Koizumi K, Murate T, Nakamura M, Kyogashima M, Takahashi T. Targeting ceramide synthase 6-dependent metastasis-prone phenotype in lung cancer cells. J Clin Invest 2019; 129:5050. [PMID: 31674925 DOI: 10.1172/jci133806] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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22
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Nishio T, Wakahara K, Suzuki Y, Nishio N, Majima S, Nakamura S, Teranishi M, Nakatochi M, Sone M, Hasegawa Y. Mixed cell type in airway inflammation is the dominant phenotype in asthma patients with severe chronic rhinosinusitis. Allergol Int 2019; 68:515-520. [PMID: 31257167 DOI: 10.1016/j.alit.2019.05.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Revised: 04/25/2019] [Accepted: 05/11/2019] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Asthma often coexists with chronic rhinosinusitis (CRS). Recent studies revealed that sinus inflammation in asthmatic patients was related to eosinophilic inflammation. However, the relationship between the severity of CRS and four different sputum inflammatory phenotypes as defined by the proportion of eosinophils and neutrophils is unknown. The aim of this study was to examine the impact of the severity of CRS on lower airway and systemic inflammation in asthmatic patients. METHODS We enrolled 57 adult asthmatic patients who underwent sinus computed tomography (CT). The severity of CRS was evaluated by the Lund-Mackay score (LMS). The induced sputum inflammatory phenotype was defined by eosinophils (≥/<2%) and neutrophils (≥/<60%). Peripheral blood mononuclear cells (PBMC) were collected to examine cytokine productions. RESULTS The median LMS of subjects was 6 (interquartile range, 0-11.5). The sputum inflammatory cell phenotype was categorized as paucicellular (n = 14), neutrophilic (n = 11), eosinophilic (n = 20), or mixed (n = 12). LMS was positively correlated with the percentage of blood eosinophils, sputum eosinophils, and mean fluorescence intensity (MFI) of IL-5 on CD4+ T cells. In the severe CRS group (LMS, 12-24), the number of mixed cellular phenotypes was higher than that in the group without CRS (LMS, 0-4) and mild-to-moderate CRS group (LMS, 5-11). CONCLUSIONS In asthmatic patients with severe CRS, the proportion of the mixed cellular inflammatory phenotype was increased as well as eosinophilic inflammation.
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23
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Suzuki M, Cao K, Kato S, Komizu Y, Mizutani N, Tanaka K, Arima C, Tai MC, Yanagisawa K, Togawa N, Shiraishi T, Usami N, Taniguchi T, Fukui T, Yokoi K, Wakahara K, Hasegawa Y, Mizutani Y, Igarashi Y, Inokuchi JI, Iwaki S, Fujii S, Satou A, Matsumoto Y, Ueoka R, Tamiya-Koizumi K, Murate T, Nakamura M, Kyogashima M, Takahashi T. Targeting ceramide synthase 6-dependent metastasis-prone phenotype in lung cancer cells. J Clin Invest 2019; 129:3464. [PMID: 31264973 DOI: 10.1172/jci131245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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24
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Nishio T, Wakahara K, Suzuki Y, Majima S, Nishio N, Teranishi M, Sone M, Hasegawa Y. Mixed cellular inflammation is increased in adult asthma with severe chronic rhinosinusitis. J Allergy Clin Immunol 2019. [DOI: 10.1016/j.jaci.2018.12.579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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25
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Majima S, Okachi S, Asano M, Wakahara K, Hashimoto N, Sato M, Ishigami M, Hasegawa Y. Pseudomembranous Invasive Tracheobronchial Aspergillosis with Fulminant Hepatitis and Hemophagocytic Syndrome. Intern Med 2018; 57:2371-2375. [PMID: 29607975 PMCID: PMC6148184 DOI: 10.2169/internalmedicine.9673-17] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Invasive tracheobronchial aspergillosis (ITBA), a rare form of invasive pulmonary Aspergillus infection (IPA), is predominantly confined to the tracheobronchial tree. We herein report a case of ITBA with severe necrotic pseudomembrane in a 57-year-old woman with fulminant hepatitis and hemophagocytic syndrome. Bronchoscopic findings revealed a widespread pseudomembranous formation of the trachea and bronchi. Aspergillus fumigatus was cultured from bronchial lavage fluid, and the histological findings of an endobronchial biopsy revealed necrosis and invasive hyphae. Although she responded to antifungal treatment, she ultimately died of a septic shock with Burkholderia cepacia 57 days after admission.
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Affiliation(s)
- Suguru Majima
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Motoyo Asano
- Department of Respiratory Medicine and Allergology, Kariya Toyota General Hospital, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Mitsuo Sato
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Masatoshi Ishigami
- Department of Gastroenterology and Hepatology, Nagoya University School of Medicine, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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26
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Sato M, Okachi S, Fukihara J, Shimoyama Y, Wakahara K, Sakakibara T, Hase T, Onishi Y, Ogura Y, Maeda O, Hasegawa Y. Lung Metastases from Bile Duct Adenocarcinoma Mimicking Chronic Airway Infection and Causing Diagnostic Difficulty. Intern Med 2018; 57:1429-1432. [PMID: 29279503 PMCID: PMC5995711 DOI: 10.2169/internalmedicine.9718-17] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We herein report a case of lung metastases with unusual radiological appearances that mimicked those of chronic airway infection, causing diagnostic difficulty. A 60-year-old woman who underwent liver transplantation from a living donor was incidentally diagnosed with bile duct adenocarcinoma after a histopathological analysis of her explanted liver. Six months later, chest computed tomography (CT) revealed bilateral bronchogenic dissemination that had gradually worsened, suggesting chronic airway infection. A biopsy with bronchoscopy from a mass lesion beyond a segmental bronchus revealed adenocarcinoma identical to that of her bile duct adenocarcinoma, leading to the diagnosis of multiple lung metastases from bile duct adenocarcinoma.
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Affiliation(s)
- Mitsuo Sato
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Jun Fukihara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Yoshie Shimoyama
- Department of Pathology, Nagoya University Graduate School of Medicine, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Toshihiro Sakakibara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
| | - Yasuharu Onishi
- Department of Transplantation Surgery, Nagoya University Hospital, Japan
| | - Yasuhiro Ogura
- Department of Transplantation Surgery, Nagoya University Hospital, Japan
| | - Osamu Maeda
- Department of Clinical Chemotherapy and Pharmacology, Nagoya University Graduate School of Medicine, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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27
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Abstract
BACKGROUND The impact of basophils on asthma pathogenesis remains largely unexplored, particularly in humans. Here, we evaluated the frequencies and activation status of basophils in the sputum of adult asthmatic patients and related our findings to other parameters of eosinophilic airway inflammation. METHODS We enrolled 44 adult asthmatic patients who were being treated with inhaled corticosteroids (ICS). Analysis of the induced sputum, exhaled nitric oxide fraction (FeNO) measurement, and asthma control test (ACT) were carried out together with standard blood and pulmonary function tests. The cellular composition of the sputum was examined by flow cytometry, and the phenotypes of blood and sputum basophils were compared. RESULTS Basophils were increased in the sputum of asthmatic patients. The expression of CD203c on sputum basophils was significantly higher than that on blood basophils. The percentage of sputum basophils was positively correlated with those of eosinophils and mast cells; it was also correlated with that of blood eosinophils and FeNO. However, sputum basophils were not correlated with serum IgE, lung function, or the percentage of blood basophils. A receiver-operating characteristic (ROC) curve showed the superiority of sputum basophils as a surrogate marker of the percentages of sputum eosinophils compared with absolute numbers of blood eosinophils and FeNO. CONCLUSION The number of activated basophils was increased in the sputum of patients with eosinophilic asthma and correlated with airway and blood eosinophils. Our observations suggest that sputum basophils may serve as a biomarker to monitor new therapeutic approaches for the treatment of eosinophilic asthma.
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Affiliation(s)
- Y Suzuki
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - K Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - T Nishio
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - S Ito
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Y Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Nagoya, Japan
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28
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Ito S, Wakahara K, Kojima T, Takahashi N, Nishiwaki K, Yamaguchi E, Hasegawa Y. Two cases of autoimmune pulmonary alveolar proteinosis with rheumatoid arthritis. Allergol Int 2017; 66:507-509. [PMID: 28242199 DOI: 10.1016/j.alit.2017.02.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 12/19/2016] [Accepted: 12/22/2016] [Indexed: 11/27/2022] Open
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29
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Asano S, Mizuno S, Okachi S, Aso H, Wakahara K, Hashimoto N, Ito S, Kozaki Y, Katsuno T, Maruyama S, Hasegawa Y. Antineutrophil Cytoplasmic Antibody-associated Vasculitis Superimposed on Infection-related Glomerulonephritis Secondary to Pulmonary Mycobacterium avium Complex Infection. Intern Med 2016; 55:2439-45. [PMID: 27580547 DOI: 10.2169/internalmedicine.55.6588] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A 73-year-old woman was diagnosed with pulmonary Mycobacterium avium complex (MAC) infection and received no treatment. Disease progression was evident one year later with the development of myeloperoxidase-antineutrophil cytoplasmic antibody (ANCA) titers and systemic symptoms of a fever, polyarthritis, purpura, and rapidly progressive glomerulonephritis. Her symptoms did not improve with antibiotic treatment. A renal biopsy revealed crescentic glomerulonephritis with immunodeposition. According to these findings, she was diagnosed with ANCA-associated vasculitis (AAV) superimposed on infection-related glomerulonephritis (IRGN). Although there was a risk of aggravating an underlying infection, the combination therapy of corticosteroid and antibiotics improved AAV, IRGN, and even the lung radiological findings. To the best of our knowledge, this is the first case of AAV and IRGN secondary to pulmonary MAC infection.
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Affiliation(s)
- Shuichi Asano
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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Okachi S, Imai N, Imaizumi K, Iwano S, Ando M, Hase T, Aso H, Morise M, Wakahara K, Ito S, Hashimoto N, Sato M, Kondo M, Hasegawa Y. Factors Affecting the Diagnostic Yield of Transbronchial Biopsy Using Endobronchial Ultrasonography with a Guide Sheath in Peripheral Lung Cancer. Intern Med 2016; 55:1705-12. [PMID: 27374669 DOI: 10.2169/internalmedicine.55.6341] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/17/2023] Open
Abstract
Objective Endobronchial ultrasonography with a guide sheath (EBUS-GS) and virtual bronchoscopic navigation (VBN) improves the diagnostic yield in patients with peripheral pulmonary lesions (PPLs). Most previous reports on EBUS-GS-guided transbronchial biopsy (TBB) have included patients with benign and malignant diseases. We aimed to determine the factors that predicted a successful diagnosis by EBUS-GS-guided TBB diagnostic in patients with small peripheral lung cancer, with a focus on the high-resolution computed tomography (HRCT) findings before bronchoscopy. Methods We retrospectively reviewed the medical records of 173 consecutive patients with 175 small (≤30 mm) PPLs who were diagnosed with primary lung cancer between June 2010 and October 2013 at Nagoya University Hospital. All patients underwent EBUS-GS-guided TBB with VBN using a ZioStation computer workstation (Ziosoft, Osaka, Japan). We analyzed the patient characteristics, HRCT findings, diagnostic yield, and the diagnostic factors in small peripheral lung carcinoma. Results The EBUS probe position was within the PPL in 83 of the 175 lesions (47%) and 112 (64.0%) cases were successfully diagnosed by EBUS-GS-guided TBB. A univariate analysis revealed that the following factors were associated with a significantly higher diagnostic yield: CT bronchus sign positivity, a lesion of >20 mm in diameter, a solid nodule, and a probe position that was within the lesion. The following factors were not significant: the lesion location, the number of biopsies, and the lung cancer histology. A multivariate analysis revealed that the following factors significantly affected the diagnostic yield: CT bronchus sign positivity [odds ratio (OR) =2.479]; a probe position that was within the lesion (OR=2.542); and a solid nodule (OR=2.304). Conclusion The significant factors that were significantly associated with a successful diagnosis using EBUS-GS-guided TBB in small peripheral lung carcinoma were as follows: CT bronchus sign positivity, a solid nodule, and a probe position that was within the lesion.
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Affiliation(s)
- Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine, Japan
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Suzuki M, Cao K, Kato S, Komizu Y, Mizutani N, Tanaka K, Arima C, Tai MC, Yanagisawa K, Togawa N, Shiraishi T, Usami N, Taniguchi T, Fukui T, Yokoi K, Wakahara K, Hasegawa Y, Mizutani Y, Igarashi Y, Inokuchi JI, Iwaki S, Fujii S, Satou A, Matsumoto Y, Ueoka R, Tamiya-Koizumi K, Murate T, Nakamura M, Kyogashima M, Takahashi T. Targeting ceramide synthase 6-dependent metastasis-prone phenotype in lung cancer cells. J Clin Invest 2015; 126:254-65. [PMID: 26650179 DOI: 10.1172/jci79775] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2014] [Accepted: 11/03/2015] [Indexed: 01/28/2023] Open
Abstract
Sphingolipids make up a family of molecules associated with an array of biological functions, including cell death and migration. Sphingolipids are often altered in cancer, though how these alterations lead to tumor formation and progression is largely unknown. Here, we analyzed non-small-cell lung cancer (NSCLC) specimens and cell lines and determined that ceramide synthase 6 (CERS6) is markedly overexpressed compared with controls. Elevated CERS6 expression was due in part to reduction of microRNA-101 (miR-101) and was associated with increased invasion and poor prognosis. CERS6 knockdown in NSCLC cells altered the ceramide profile, resulting in decreased cell migration and invasion in vitro, and decreased the frequency of RAC1-positive lamellipodia formation while CERS6 overexpression promoted it. In murine models, CERS6 knockdown in transplanted NSCLC cells attenuated lung metastasis. Furthermore, combined treatment with l-α-dimyristoylphosphatidylcholine liposome and the glucosylceramide synthase inhibitor D-PDMP induced cell death in association with ceramide accumulation and promoted cancer cell apoptosis and tumor regression in murine models. Together, these results indicate that CERS6-dependent ceramide synthesis and maintenance of ceramide in the cellular membrane are essential for lamellipodia formation and metastasis. Moreover, these results suggest that targeting this homeostasis has potential as a therapeutic strategy for CERS6-overexpressing NSCLC.
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Sarfati M, Wakahara K, Chapuy L, Delespesse G. Mutual Interaction of Basophils and T Cells in Chronic Inflammatory Diseases. Front Immunol 2015; 6:399. [PMID: 26284078 PMCID: PMC4522868 DOI: 10.3389/fimmu.2015.00399] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2015] [Accepted: 07/20/2015] [Indexed: 12/25/2022] Open
Abstract
Basophils are, together with mast cells, typical innate effector cells of allergen-induced IgE-dependent allergic diseases. Both cell types express the high-affinity receptor for IgE (FcεR1), release histamine, inflammatory mediators, and cytokines following FcεR1 cross-linking. Basophils are rare granulocytes in blood, lymphoid, and non-lymphoid tissues, and the difficulties to detect and isolate these cells has hampered the study of their biology and the understanding of their possible role in pathology. Furthermore, the existence of other FcεR1-expressing cells, including professional Ag-presenting dendritic cells, generated some controversy regarding the ability of basophils to express MHC Class II molecules, present Ag and drive naïve T cell differentiation into Th2 cells. The focus of this review is to present the recent advances on the interactions between basophils and peripheral blood and tissue memory Th1, Th2, and Th17 cells, as well as their potential role in IgE-independent non-allergic chronic inflammatory disorders, including human inflammatory bowel diseases. Basophils interactions with the innate players of IgE-dependent allergic inflammation, particularly innate lymphoid cells, will also be considered. The previously unrecognized function for basophils in skewing adaptive immune responses opens novel perspectives for the understanding of their contribution to the pathogenesis of inflammatory diseases.
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Affiliation(s)
- Marika Sarfati
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal , Montréal, QC , Canada
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine , Nagoya , Japan
| | - Laurence Chapuy
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal , Montréal, QC , Canada
| | - Guy Delespesse
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Université de Montréal , Montréal, QC , Canada
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Okachi S, Wakahara K, Kato D, Umeyama T, Yagi T, Hasegawa Y. Massive mediastinal cryptococcosis in a young immunocompetent patient. Respirol Case Rep 2015; 3:95-8. [PMID: 26392855 PMCID: PMC4571737 DOI: 10.1002/rcr2.111] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/16/2015] [Accepted: 05/01/2015] [Indexed: 01/01/2023] Open
Abstract
Pulmonary cryptococcosis with lymph node involvement is relatively rare in immunocompetent patients. We report a case of pulmonary cryptococcosis with massive mediastinal lymphadenopathy in an immunocompetent young patient. In this report, a 17-year-old boy presented with high-grade fever and persistent cough. Chest X-ray and computed tomography showed massive mediastinal lymphadenopathy. Endobronchial ultrasound-guided transbronchial needle aspiration revealed histological evidence of cryptococcal lymphadenitis. He was treated with liposomal amphotericin B plus flucytosine followed by fluconazole and recovered.
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Affiliation(s)
- Shotaro Okachi
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine Nagoya, Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine Nagoya, Japan
| | - Daizo Kato
- Department of Infectious Diseases, Nagoya University Hospital Nagoya, Japan
| | - Takashi Umeyama
- Department of Chemotherapy and Mycoses, National Institute of Infectious Diseases Tokyo, Japan
| | - Tetsuya Yagi
- Department of Infectious Diseases, Nagoya University Hospital Nagoya, Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine Nagoya, Japan
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Baba N, Van VQ, Wakahara K, Rubio M, Fortin G, Panzini B, Soucy G, Wassef R, Richard C, Tamaz R, Lahaie R, Bernard EJ, Caussignac Y, Leduc R, Lougnarath R, Bergeron C, Racicot MA, Bergeron F, Panzini MA, Demetter P, Franchimont D, Schäkel K, Weckbecker G, Kolbinger F, Heusser C, Huber T, Welzenbach K, Sarfati M. CD47 fusion protein targets CD172a+ cells in Crohn's disease and dampens the production of IL-1β and TNF. ACTA ACUST UNITED AC 2013; 210:1251-63. [PMID: 23669395 PMCID: PMC3674701 DOI: 10.1084/jem.20122037] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [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: 12/14/2022]
Abstract
CD172a+ cells producing IL-1β and TNF are increased in inflamed tissues in Crohn’s disease and can be targeted by CD47 fusion protein. In mice, the transfer of CD172a+ (SIRP-α) dendritic cells (DCs) elicits T cell–driven colitis, whereas treatment with CD47-Fc protein, a CD172a-binding agent, confers protection. The aim of this study was to elucidate the nature and functional properties of human CD172a+ DCs in chronic intestinal inflammation. Here, we show that CD172a+CD11c+ cells accumulate in the mesenteric lymph nodes (mLNs) and inflamed intestinal mucosa in patients with Crohn’s disease (CD). These cells are distinct from resident DCs and may coexpress markers typically associated with monocyte-derived inflammatory DCs such as CD14 and/or DC-SIGN, E-Cadherin, and/or CX3CR1. Spontaneous IL-1β and TNF production by HLA-DR+ cells in CD tissues is restricted to those expressing CD172a. An avidity-improved CD47 fusion protein (CD47-Var1) suppresses the release of a wide array of inflammatory cytokines by CD172a+ cells, which may include HLA-DR−CD172a+ neutrophils, in inflamed colonic explant cultures and impairs the ability of HLA-DR+CD172a+ cells to activate memory Th17 but not Th1 responses in mLNs. In conclusion, targeting CD172a+ cells may represent novel therapeutic perspectives for patients with CD.
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Affiliation(s)
- Nobuyasu Baba
- Immunoregulation Laboratory, The Research Center of the Centre Hospitalier de L'Université de Montréal (CRCHUM), Montreal, Canada
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Okachi S, Imai N, Imaizumi K, Hase T, Shindo Y, Sakamoto K, Aso H, Wakahara K, Hashimoto I, Ito S, Hashimoto N, Sato M, Kondo M, Hasegawa Y. Endobronchial ultrasound transbronchial needle aspiration in older people. Geriatr Gerontol Int 2013; 13:986-92. [DOI: 10.1111/ggi.12043] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/27/2012] [Indexed: 11/29/2022]
Affiliation(s)
- Shotaro Okachi
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Naoyuki Imai
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Kazuyoshi Imaizumi
- Department of Internal Medicine, Division of Respiratory Medicine and Clinical Allergy; Fujita Health University; Toyoake; Aichi; Japan
| | - Tetsunari Hase
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | | | - Koji Sakamoto
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Hiromichi Aso
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Keiko Wakahara
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Izumi Hashimoto
- Department of Internal Medicine, Division of Respiratory Medicine and Clinical Allergy; Fujita Health University; Toyoake; Aichi; Japan
| | - Satoru Ito
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Naozumi Hashimoto
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Mitsuo Sato
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Masashi Kondo
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
| | - Yoshinori Hasegawa
- Department of Respiratory Medicine; Nagoya University Graduate School of Medicine; Nagoya; Japan
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Wakahara K, Van VQ, Baba N, Bégin P, Rubio M, Delespesse G, Sarfati M. Basophils are recruited to inflamed lungs and exacerbate memory Th2 responses in mice and humans. Allergy 2013. [PMID: 23205591 DOI: 10.1111/all.12072] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
BACKGROUND Although the contribution of basophils as inducers or amplifiers of Th2 responses is still debated, prolonged basophil/CD4 T cell interactions were observed in lungs but not lymph nodes (LNs) of parasite-infected mice. However, the impact of basophils on the function of tissue CD4 effector T cells remains unknown. METHODS Basophils were purified from the lungs of ovalbumin (OVA)-sensitized and OVA-challenged (OVA-immunized) mice or human peripheral blood for in vivo and in vitro functional studies. Pulmonary basophils were adoptively transferred to OVA-sensitized hosts to assess airway inflammation in bronchoalveolar lavage fluid (BALF) and Th2 responses in lung explants and draining LNs. Basophils were co-cultured with effector T cells or Ag-specific naïve T cells alone or in combination with dendritic cells (DCs); IL-4 production was determined by flow cytometry and ELISA. RESULTS Basophils accumulated in lungs of OVA-immunized mice. Adoptive transfer of basophils to OVA-sensitized hosts enhanced lung IL-4 and IL-13 release while co-administration of OVA further aggravated airway inflammation and Th2 responses in LNs. Mechanistic in vitro studies revealed that pulmonary basophils interacted with lung CD4 effectors, in the absence of DCs, to increase T cell survival and Th2 cytokine expression at the single cell level but amplified OVA-loaded DC-driven Th2 differentiation. Finally, human basophils augmented in vitro IL-4 expression in effector memory CD4 T cells that include CRTH2(+) cells through IL-4 and TCR-independent pathways. CONCLUSIONS Basophils may worsen Th2 inflammatory disorders through direct interactions with pathogenic CD4 T cells as well as by enhancing DC-induced Th2 cell development.
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Affiliation(s)
| | - V. Q. Van
- Immunoregulation Laboratory; Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Montreal; QC; Canada
| | - N. Baba
- Immunoregulation Laboratory; Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Montreal; QC; Canada
| | | | - M. Rubio
- Immunoregulation Laboratory; Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Montreal; QC; Canada
| | - G. Delespesse
- Allergy Laboratory; Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Montreal; QC; Canada
| | - M. Sarfati
- Immunoregulation Laboratory; Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM); Montreal; QC; Canada
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Van VQ, Baba N, Rubio M, Wakahara K, Panzini B, Richard C, Soucy G, Franchimont D, Fortin G, Torres ACM, Cabon L, Susin S, Sarfati M. CD47(low) status on CD4 effectors is necessary for the contraction/resolution of the immune response in humans and mice. PLoS One 2012; 7:e41972. [PMID: 22870271 PMCID: PMC3411572 DOI: 10.1371/journal.pone.0041972] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2012] [Accepted: 06/29/2012] [Indexed: 12/14/2022] Open
Abstract
How do effector CD4 T cells escape cell death during the contraction of the immune response (IR) remain largely unknown. CD47, through interactions with thrombospondin-1 (TSP-1) and SIRP-α, is implicated in cell death and phagocytosis of malignant cells. Here, we reported a reduction in SIRP-α-Fc binding to effector memory T cells (T(EM)) and in vitro TCR-activated human CD4 T cells that was linked to TSP-1/CD47-induced cell death. The reduced SIRP-α-Fc binding (CD47(low) status) was not detected when CD4 T cells were stained with two anti-CD47 mAbs, which recognize distinct epitopes. In contrast, increased SIRP-α-Fc binding (CD47(high) status) marked central memory T cells (T(CM)) as well as activated CD4 T cells exposed to IL-2, and correlated with resistance to TSP-1/CD47-mediated killing. Auto-aggressive CD4 effectors, which accumulated in lymph nodes and at mucosal sites of patients with Crohn's disease, displayed a CD47(high) status despite a high level of TSP-1 release in colonic tissues. In mice, CD47 (CD47(low) status) was required on antigen (Ag)-specific CD4 effectors for the contraction of the IR in vivo, as significantly lower numbers of Ag-specific CD47(+/+)CD4 T cells were recovered when compared to Ag-specific CD47(-/-) CD4 T cells. In conclusion, we demonstrate that a transient change in the status of CD47, i.e. from CD47(high) to CD47(low), on CD4 effectors regulates the decision-making process that leads to CD47-mediated cell death and contraction of the IR while maintenance of a CD47(high) status on tissue-destructive CD4 effectors prevents the resolution of the inflammatory response.
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Affiliation(s)
- Vu Quang Van
- Immunoregulation Laboratory, Centre Hospitalier de l’Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Nobuyasu Baba
- Immunoregulation Laboratory, Centre Hospitalier de l’Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Manuel Rubio
- Immunoregulation Laboratory, Centre Hospitalier de l’Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Keiko Wakahara
- Immunoregulation Laboratory, Centre Hospitalier de l’Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Benoit Panzini
- Department of Gastroenterology, Centre Hospitalier de l’Université de Montréal (CHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Carole Richard
- Department of Digestive Tract Surgery, Centre Hospitalier de l’Université de Montréal (CHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Genevieve Soucy
- Department of Pathology, Centre Hospitalier de l’Université de Montréal (CHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
| | - Denis Franchimont
- Department de Gastroenterology, Erasme Hospital, Université Libre de Bruxelles (ULB), Bruxelles, Belgique
| | - Genevieve Fortin
- Research Institute of McGill University Health Centre, McGill University, Montreal, Quebec, Canada
| | - Ana Carolina Martinez Torres
- INSERM U872, Mort Cellulaire Programmée et Physiopathologie des Cellules Tumorales, Equipe 19, Centre de Recherche des Cordeliers, Paris, France
- Université Pierre et Marie Curie-Sorbonne Universités, UMRS 872, Paris, France
- Université Paris Descartes, Paris, France
| | - Lauriane Cabon
- INSERM U872, Mort Cellulaire Programmée et Physiopathologie des Cellules Tumorales, Equipe 19, Centre de Recherche des Cordeliers, Paris, France
- Université Pierre et Marie Curie-Sorbonne Universités, UMRS 872, Paris, France
- Université Paris Descartes, Paris, France
| | - Santos Susin
- INSERM U872, Mort Cellulaire Programmée et Physiopathologie des Cellules Tumorales, Equipe 19, Centre de Recherche des Cordeliers, Paris, France
- Université Pierre et Marie Curie-Sorbonne Universités, UMRS 872, Paris, France
- Université Paris Descartes, Paris, France
| | - Marika Sarfati
- Immunoregulation Laboratory, Centre Hospitalier de l’Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
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Van VQ, Baba N, Rubio M, Wakahara K, Panzini B, Richard C, Susin G, Franchimont D, Fortin G, Martinez Torres AC, Cabon L, Susin S, Sarfati M. CD47low status on CD4 effectors is necessary for the contraction of the immune response in humans and mice (69.13). The Journal of Immunology 2012. [DOI: 10.4049/jimmunol.188.supp.69.13] [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] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Abstract
To execute a memory program, CD4 effector T cells must escape cell death and elimination and survive beyond the contraction of the immune response (IR). The involvement of Fas/FasL in the crash of IR has been challenged and the elimination of CD4 effector T cells appeared to occur independently of caspase activation. We report here that in vitro TCR-activated human CD4 T and ex vivo isolated effector memory T cells displayed a CD47low status that was linked to thrombospondin-1/CD47-induced caspase-independent cell death. By contrast, a CD47highstatus that was observed on central memory T cells and on activated CD4 T cells cultured in the presence of IL-2 correlated with resistance to CD47-mediated killing. A CD47low status was required on murine antigen (Ag)-specific CD4 effectors T cells for the contraction of the IR in vivo, as lower numbers of Ag-specific CD47low CD4 T cells were recovered when compared to Ag-specific CD47-/- CD4 T cells. Finally, the maintenance of a CD47high status on CD4 effectors despite high level of TSP-1 production was observed in inflamed tissues of patients with Crohn’s disease when compared to non-IBD donors, suggesting that a CD47high status on tissue-destructive CD4 effectors prevents the resolution of inflammatory response. In conclusion, a transient change in the status of the self-marker CD47, i.e. from CD47high to CD47low, regulates the decision-making process that leads to cell death during the IR.
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Affiliation(s)
- Vu Quang Van
- 1Immunoregulation, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Nobuyasu Baba
- 1Immunoregulation, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Manuel Rubio
- 1Immunoregulation, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Keiko Wakahara
- 1Immunoregulation, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Benoit Panzini
- 3Digestive tract surgery, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Carole Richard
- 4Pathology, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Genevieve Susin
- 2Gastroenterology, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
| | - Denis Franchimont
- 5Gastroenterology, Hôpital Erasme,Université Libre de Bruxelles, Bruxelles, Belgium
| | - Genevieve Fortin
- 6Research Institute of McGill University Health Centre, McGill University, Montreal, QC, Canada
| | | | - Lauriane Cabon
- 7INSERM, Centre de Recherche des Cordeliers, Montreal, QC, Canada
| | - Santos Susin
- 7INSERM, Centre de Recherche des Cordeliers, Montreal, QC, Canada
| | - Marika Sarfati
- 1Immunoregulation, Centre de Recherche de l'université de Montreal, Montreal, QC, Canada
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Van VQ, Raymond M, Baba N, Rubio M, Wakahara K, Susin SA, Sarfati M. CD47high Expression on CD4 Effectors Identifies Functional Long-Lived Memory T Cell Progenitors. J I 2012; 188:4249-55. [DOI: 10.4049/jimmunol.1102702] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Quang Van V, Raymond M, Wakahara K, Rubio M, Sarfati M. Reprogramming in vivo th17 into th17/th2 by Sirp-α dendritic cells in the lungs. Allergy Asthma Clin Immunol 2011. [PMCID: PMC3242189 DOI: 10.1186/1710-1492-7-s2-a27] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Raymond M, Van VQ, Wakahara K, Rubio M, Sarfati M. Lung dendritic cells induce T(H)17 cells that produce T(H)2 cytokines, express GATA-3, and promote airway inflammation. J Allergy Clin Immunol 2011; 128:192-201.e6. [PMID: 21601259 DOI: 10.1016/j.jaci.2011.04.029] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2010] [Revised: 03/11/2011] [Accepted: 04/14/2011] [Indexed: 12/24/2022]
Abstract
BACKGROUND Dendritic cells (DCs) are crucial to shape the adaptive immune response. Extensive in vitro manipulation reprograms T(H)2 and T(H)17 cell lines into T(H)1 cells, leading to the concept of CD4(+) T(H) cell subset plasticity. The conversion of memory T(H)17 cells into T(H)2 cells or vice versa remains to be clarified. OBJECTIVE We examined the localization of T(H)17/T(H)2 cells in vivo, their cellular origin (T(H)2 vs T(H)17), and the underlying mechanisms that drive the generation of these double T(H) producers. METHODS Antigen-loaded bone marrow-derived DCs (ovalbumin-DCs) were repeatedly administered locally (intratracheally) or systemically (intravenously) to naive mice to elicit chronic airway inflammation. Inflamed lungs and mediastinal lymph nodes were examined for the presence of IL-17(+)IL-13(+)IL-4(+)CD4(+) T cells that coexpressed retinoic acid receptor-related orphan receptor γt and GATA-3 (T(H)17/T(H)2). RESULTS We show that repetitive administration of inflammatory ovalbumin-DCs, locally or systemically, promoted the development of antigen-specific T(H)17/T(H)2 cells in lungs and mediastinal lymph nodes. Immunized mice had IgE-independent and steroid-resistant airway inflammation with a mixed neutrophil and eosinophil infiltration of the bronchoalveolar lavage fluid. Airway inflammatory signal regulatory protein α-positive DCs reprogrammed in vitro-generated T(H)17 but not T(H)2 cells, as well as lung effector T(H) cells, into T(H)17/T(H)2 cells. CONCLUSION We demonstrate the existence of T(H)17/T(H)2 cells that express GATA-3 in inflamed tissues and their T(H)17 origin. We further propose that repeated immunization with inflammatory DCs prevails on the route of DC administration to drive T(H)17/T(H)2-associated chronic lung inflammation.
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Affiliation(s)
- Marianne Raymond
- Immunoregulation Laboratory, Centre Hospitalier de l'Université de Montréal, Research Center (CRCHUM), Notre-Dame Hospital, Montreal, Quebec, Canada
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Takahashi G, Tanaka H, Wakahara K, Nasu R, Hashimoto M, Miyoshi K, Takano H, Yamashita H, Inagaki N, Nagai H. Effect of diesel exhaust particles on house dust mite-induced airway eosinophilic inflammation and remodeling in mice. J Pharmacol Sci 2010; 112:192-202. [PMID: 20093792 DOI: 10.1254/jphs.09276fp] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Recent research has focused on the effects of ambient particulate pollution and much evidence has indicated that particulate pollution is associated with the onset of asthma and allergy; however, the effect of diesel exhaust particles (DEP) on the development of allergen-induced airway remodeling has not been fully investigated in vivo. In the present study, we examined the effects of DEP on Dermatophagoides farinae allergens (Der f)-induced asthma-like phenotypes in mice. Mice were administered i.t. 8 times with Der f. DEP were injected i.t. with Der f 4 times throughout the experiment or twice at the sensitization period. In both cases, DEP aggravated Der f-induced increases in airway responsiveness to acetylcholine, the number of eosinophils and neutrophils in the bronchoalveolar lavage fluid (BALF), serum Der f-specific IgG1 levels, Th2 cytokines and transforming growth factor-beta1 levels in BALF, and amount of hydroxyproline in the right lungs. Furthermore, goblet cell hyperplasia and subepithelial fibrosis were also markedly aggravated. These findings indicate that DEP can potentiate airway remodeling induced by repeated allergen challenge as well as Th2-drived airway hyperresponsiveness, eosinophilic inflammation, and IgG1 production and that DEP can exhibit adjuvant activity for airway remodeling, probably due to the enhancement of allergen sensitization and/or of Th2 polarizing pathways.
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Affiliation(s)
- Go Takahashi
- Laboratory of Pharmacology, Department of Bioactive Molecules, Gifu Pharmaceutical University, Mitahora-higashi, Gifu 502-8585, Japan
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Ishizaki M, Tanaka H, Kajiwara D, Toyohara T, Wakahara K, Inagaki N, Nagai H. Nafamostat mesilate, a potent serine protease inhibitor, inhibits airway eosinophilic inflammation and airway epithelial remodeling in a murine model of allergic asthma. J Pharmacol Sci 2008; 108:355-63. [PMID: 19008643 DOI: 10.1254/jphs.08162fp] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
To clarify the involvement of serine proteases in the development of allergic airway inflammation, we investigated the effect of nafamostat mesilate, a serine protease inhibitor, in a murine model of allergic asthma. Mice were sensitized to ovalbumin (OA) with alum and then exposed to 1% OA for 30 min, three times every 4th day. Nafamostat mesilate was administered orally for 10 days during the allergen challenge. In sensitized mice, repeated allergen challenge induced an increase in tryptase proteolytic activity in bronchoalveolar lavage fluid (BALF). In addition, marked increases in the numbers of inflammatory cells, levels of T helper type 2 (Th2) cytokines and eotaxin in BALF, numbers of goblet cells in the epithelium, and level of OA-specific IgE in serum were observed after repetitive allergen inhalation. Treatment with nafamostat mesilate significantly inhibited not only increased proteolytic activities, but also increases in the numbers of eosinophils and lymphocytes in the BALF. Nafamostat mesilate also dose-dependently inhibited increases in the levels of interleukin-13 and eotaxin in BALF and goblet cell hyperplasia. These findings suggest that increased serine protease activity in the airways is involved in the development of antigen-induced allergic eosinophilic inflammation and epithelial remodeling in bronchial asthma.
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Affiliation(s)
- Masayuki Ishizaki
- Laboratory of Pharmacology, Department of Bioactive Molecules, Gifu Pharmaceutical University, Gifu, Japan
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Hirose I, Tanaka H, Takahashi G, Wakahara K, Tamari M, Sakamoto T, Kojima S, Inagaki N, Nagai H. Immunomodulatory effects of CpG oligodeoxynucleotides on house dust mite-induced airway inflammation in mice. Int Arch Allergy Immunol 2008; 147:6-16. [PMID: 18446048 DOI: 10.1159/000128581] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Accepted: 12/20/2007] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND CpG oligodeoxynucleotides (CpG ODNs) are reported to protect against airway eosinophilia and hyperresponsiveness in animal models of asthma. However, little is known about the effects of CpG ODNs on house dust mites, one of the most common environmental allergens, causing allergic asthma. In the present study, we evaluated the immunomodulatory effects of CpG ODNs on the development of house dust mite-induced airway inflammation and remodeling in mice. METHODS Mice were instilled with Dermatophagoides farinae (Der f) into the trachea 8 times without any additional adjuvants. 48 h after the final allergen instillation, the airway responsiveness to acetylcholine (Ach) was measured, and bronchoalveolar lavage (BAL) and histopathological examination were carried out. CpG ODNs were instilled into the trachea mixed with Der f at the first allergen instillation. RESULTS Repeated instillation of Der f induced increases in airway responsiveness to Ach, the numbers of inflammatory cells, the levels of T-helper type 2 cytokines and transforming growth factor-beta(1) in the BAL fluid. Furthermore, goblet cell hyperplasia, the thickness of the epithelium and subepithelial fibrosis were observed. The simultaneous instillation of CpG ODNs with Der f at the first allergen instillation showed significant inhibition of these parameters dose dependently. CONCLUSIONS Our results demonstrate that CpG ODNs have inhibitory effects on Der f-induced airway hyperresponsiveness and eosinophilia, as well as airway remodeling, and that CpG ODNs can be a therapeutic approach for the treatment of house dust mite-induced asthma.
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Affiliation(s)
- Izumi Hirose
- Department of Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
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Shiraki A, Ando M, Shindoh J, Abe T, Wakahara K, Makino Y, Asano T, Nakashima H, Hase T, Shigemitsu K, Horiba M, Shimokata K. [Prevalence of myeloperoxidase-anti-neutrophil cytoplasmic antibody (MPO-ANCA) in patients with interstitial pneumonia]. Nihon Kokyuki Gakkai Zasshi 2007; 45:921-926. [PMID: 18186236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Myeloperoxidase-anti-neutrophil cytoplasmic antibody (MPO-ANCA) is an autoantibody that is frequently found in patients with vasculitides. We encountered some MPO-ANCA positive patients with interstitial pneumonia who lacked vasculitides, but its meaning remains unclear. We measured MPO-ANCA titers in 69 patients with interstitial pneumonia (IP) who did not have collagen vascular diseases and observed their outcome. MPO-ANCA was positive in 5 patients and its prevalence was 7.2%. Patients with MPO-ANCA positive showed higher positivity in rheumatoid factor (RF) than patients with MPO-ANCA negative. The sensitivity and specificity of a combination of anti-nuclear antibody-negative and RF-positive were 80.0% and 87.7%, respectively. Two patients were accompanied by microscopic polyangiitis and the 3-year survival rate was 40% in all patients with MPO-ANCA. Measurement of MPO-ANCA titers in patients with IPs is meaningful for determining therapeutic strategy.
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Affiliation(s)
- Akira Shiraki
- Department of Respiratory Medicine, Nagoya University Graduate School of Medicine
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Wakahara K, Tanaka H, Takahashi G, Tamari M, Nasu R, Toyohara T, Takano H, Saito S, Inagaki N, Shimokata K, Nagai H. Repeated instillations of Dermatophagoides farinae into the airways can induce Th2-dependent airway hyperresponsiveness, eosinophilia and remodeling in mice: effect of intratracheal treatment of fluticasone propionate. Eur J Pharmacol 2007; 578:87-96. [PMID: 17915213 DOI: 10.1016/j.ejphar.2007.09.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2006] [Revised: 08/15/2007] [Accepted: 09/05/2007] [Indexed: 10/22/2022]
Abstract
Dermatophagoides farinae are known to be a common environmental allergen causing allergic asthma; however, little is known about their pathophysiological effect via the allergenicities in vivo. Therefore, we first established a mouse model of asthma induced by repeated instillations of D. farinae. Second, to investigate whether the asthmatic responses are Th2-dependent, we examined the effect of the deficiency of interleukin-4 (IL-4) receptor alpha chain gene. Finally, we examined the effect of fluticasone propionate on this model. Mice were instilled with D. farinae without additional adjuvants into the trachea 8 times. After the final allergen instillation, the airway responsiveness to acetylcholine was measured, and bronchoalveolar lavage and histological examination were carried out. The instillation of the allergen-induced airway hyperresponsiveness, the accumulation of inflammatory cells and increases in the levels of Th2 cytokines and transforming growth factor-beta(1) production in the bronchoalveolar lavage fluid dose dependently. The number of goblet cells in the epithelium and the extent of the fibrotic area beneath the basement membrane were also increased in the morphometric study. In contrast, the defect of IL-4/IL-13 signaling through IL-4 receptor alpha chain completely abrogated all these responses. Furthermore, the simultaneous instillation of fluticasone propionate with the allergen showed significant inhibition or an inhibitory tendency of these changes. These findings demonstrate that the repetitive intratracheal instillations of D. farinae can induce airway remodeling through Th2-type inflammation, and that fluticasone propionate inhibits D. farinae-induced airway remodeling in mice, and this model would be useful for studying mechanisms involved in the development of allergic asthma.
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Affiliation(s)
- Keiko Wakahara
- Department of Pharmacology, Gifu Pharmaceutical University, Gifu, Japan
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Kimura T, Asano F, Wakahara K, Oohashi T, Mizutani H, Shindoh J, Horiba M. [Early image of squamous cell carcinoma in the peripheral lung field on high-resolution CT scan]. Nihon Kokyuki Gakkai Zasshi 2002; 40:884-8. [PMID: 12645109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
Abstract
A 65-year-old man presented with the shadow of an abnormal nodule in the left lower lung field in a chest radiograph. We diagnosed this as an old inflammatory change because prior chest radiographs had shown the same nodule in the same lung field. However, a high-resolution CT scan showed a hazy ground-glass opacity (GGO) near the nodule. Two years later, this GGO changed into a small nodule. After a CT-guided transbronchial lung biopsy performed by ultra-thin fiberoptic bronchoscopy, we diagnosed this nodule as squamous cell carcinoma. We speculated that the hazy GGO detected in the peripheral lung field on high-resolution CT two years before diagnosis may have been an early image of squamous cell carcinoma.
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Affiliation(s)
- Tomoki Kimura
- Department of Respiratory Medicine, Ogaki Municipal Hospital, 4-86 Minaminokawa-cho, Ogaki, Gifu 503-8502, Japan
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Mizutani H, Horiba M, Shindoh J, Kimura T, Son M, Wakahara K. [A case of vanishing lung complicated with pneumothorax and improved significantly by surgery]. Nihon Kokyuki Gakkai Zasshi 2002; 40:365-8. [PMID: 12166255] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/18/2023]
Abstract
A case of vanishing lung is reported. A 36-year-old man complaining of chest discomfort was admitted to our hospital. He had smoked 40 cigarettes a day for 16 years. A chest radiograph and computed tomography revealed a giant bulla which occupied almost the entire left thoracic cavity. Chest tubes were inserted percutaneously under local anesthesia into the pleural cavity to drain the air. Although the shift of the mediastinum was improved, the size of the giant bulla remained unchanged. It was therefore resected using video-assisted thoracoscopic surgery (VATS) and mini-thoracotomy. Bullectomy was performed successfully. Residual lung re-expansion yielded good postoperative results without complications.
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Affiliation(s)
- Hiroshi Mizutani
- Department of Respiratory Medicine, Ogaki Municipal Hospital, 4-86 Minaminokawa-cho, Ogaki, 503-8502, Japan
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Mizutani H, Horiba M, Shindoh J, Kimura T, Son M, Wakahara K. [A case of pulmonary eosinophilic granuloma arising rapidly 30 years after the start of smoking and remitting spontaneously without smoking cessation]. Nihon Kokyuki Gakkai Zasshi 2001; 39:852-6. [PMID: 11855084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
A case of pulmonary eosinophilic granuloma which arose rapidly after 30 years of smoking and remitted spontaneously without smoking cessation is reported. The patient was a 54-year-old man complaining of a dry cough who had been smoking 30 cigarettes a day for 30 years. Chest roentgenography showed multiple nodular shadows and cystic lesions in the upper and middle fields of both lungs. Chest computed tomography revealed multiple small cysts and small nodular lesions, mainly in both upper lung fields. CT findings strongly suggested pulmonary eosinophilic granuloma. A transbronchial lung biopsy (TBLB) was performed and 4 specimens were obtained, of which 3 showed granulomatous lesions with eosinophils and histiocytes. Furthermore, the granulomatous lesions were positive for S-100 protein staining. The symptoms and radiographic findings improved markedly within about 6 months after the onset of symptoms without treatment. Many cases of this disease were diagnosed in the past by open lung biopsy, but the number of cases diagnosed by TBLB is now increasing. The effectiveness of open lung biopsy has been emphasized in the diagnosis of pulmonary eosinophilic granuloma, but TBLB is also useful for diagnosis, especially in the active or early stage of the disease.
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Affiliation(s)
- H Mizutani
- Department of Respiratory Medicine, Ogaki Municipal Hospital, 4-86 Minaminokawa-cho, Ogaki, 503-8502, Japan
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Mizutani H, Horiba M, Shindoh J, Kimura T, Son M, Wakahara K. [Two cases of multi-drug-resistant pulmonary tuberculosis with para-aminosalicylic acid (PAS)-induced hypothyroidism]. Kekkaku 2001; 76:667-72. [PMID: 11712388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
Abstract
Two cases of multi-drug-resistant pulmonary tuberculosis with para-aminosalicylic acid (PAS)-induced hypothyroidism were reported. Case 1; a 73-year-old male, complaining of edema, was admitted to our hospital. He had been treated for his multi-drug-resistant pulmonary tuberculosis during the past 1 year with an antituberculous regimen consisting of ethambutol (EB), ethionamide (ETH) and PAS. A thyroid profile performed when he was admitted to our hospital showed several marked abnormalities: serum thyroid stimulating hormone (TSH) was elevated (69.4 microIU/ml: normal, 0.4-4.2 mIU/ml), free thyroxine level (T4) (0.01 ng/dl; normal, 0.70-1.60 ng/dl) and free triiodothyronine level (Ts) (0.60 pg/ml; normal, 2.3-4.1 pg/ml) were low. PAS was discontinued after he was admitted to our hospital, since PAS was believed to be the cause of the hypothyroidism. A thyroid profile that was repeated after the exclusion of PAS from treatment showed the following results: the TSH level was decreased (13.4 mIU/ml), the free T4 (0.93 ng/dl) were normal. During treatment with PAS, he had never received thyroid replacement therapy. Case 2; A 22-year-old female, complaining of hemosputum. She had been treated for her multi-drug-resistant pulmonary tuberculosis during the past 11 months with an antituberculous regimen consisting of EB, ETH and PAS. A thryoid profile performed when she was admitted to our hospital showed several marked abnormalities: elevated serum TSH (112.7 mIU/ml), and low T4 (2.0 micrograms/dl) and T3 (1.1 ng/ml). A thyroid profile that was repeated after the exclusion of PAS from treatment showed the following results: the TSH level was decreased (5.1 mIU/ml). Drug-induced hypothyroidism is an infrequent side effect of therapy with PAS, and only a few cases of PAS-induced hypothyroidism have been reported so far. In this report, we describe patients with hypothyroidism who were receiving therapy for multi-drug-resistant tuberculosis, tuberculosis namely, resistant to at least isoniazid (INH) and rifampicin (RFP), with a regimen that contained PAS.
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Affiliation(s)
- H Mizutani
- Department of Respiratory Medicine, Ogaki Municipal Hospital, 4-86, Minaminokawa-cho, Ogaki-shi, Gifu 503-8502, Japan
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