The Role of Reactive Sulfur Species in Refractory Respiratory Diseases
Project/Area Number |
20H03684
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Research Category |
Grant-in-Aid for Scientific Research (B)
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Allocation Type | Single-year Grants |
Section | 一般 |
Review Section |
Basic Section 53030:Respiratory medicine-related
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Research Institution | Tohoku University |
Principal Investigator |
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Project Period (FY) |
2020-04-01 – 2023-03-31
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Project Status |
Completed (Fiscal Year 2022)
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Budget Amount *help |
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2022: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2021: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2020: ¥6,630,000 (Direct Cost: ¥5,100,000、Indirect Cost: ¥1,530,000)
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Keywords | 活性硫黄分氏種 / 酸化ストレス / 慢性閉塞性肺疾患 / 組織障害 / 間質性肺炎 / 活性硫黄分子種 / 組織保護 / 組織傷害 |
Outline of Research at the Start |
本研究の目的は慢性閉塞性肺疾患(COPD)や間質性肺炎(IP)といった難治性呼吸器疾患動物モデルを作成し、新規に発見した活性硫黄分子種(RSS)の役割を明らかにするために産生酵素であるCARS2遺伝子欠損マウスやRSS供与体を用いて、病態に及ぼす作用を個体レベルで明らかにすることである。またCOPD患者の肺組織・細胞及び喀痰を採取し、肺細胞内外におけるCARS2の発現やRSS含有量を測定する。大規模COPD患者コホートを用いて、RSSの気道における産生量と臨床病態(呼吸機能や身体活動性の経年低下、増悪回数)との関連を前向き研究で明らかにする。
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Outline of Final Research Achievements |
This study elucidated the role of the reactive species (RSS) in refractory respiratory disease. Mice heterozygous for the CARS2 gene, the enzyme responsible for the production of RSS, showed exacerbation of emphysema lesions by elastase or tobacco smoke extract. In vitro studies of lung constructs showed that RSS was important for suppressing inflammatory cytokine production, reducing oxidative stress, and inhibiting cellular senescence. COPD-derived lung constructs showed decreased expression of CARS2, which was associated with respiratory function. In a bleomycin-induced pulmonary fibrosis model, CARS2-deficient mice showed worsening of fibrotic lesions.
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Academic Significance and Societal Importance of the Research Achievements |
COPDをはじめとする難治性呼吸器疾患の病態は不明な点が多く、肺の抗酸化分子の観点からの研究は少ない。我々は肺における活性硫黄分子種(reactive sulfur species: RSS)の存在を明らかにした。RSSの産生酵素であるCARS2のヘテロ欠損マウスを作成し、このマウスを元にCOPDモデル及び肺線維症モデルマウスを作成し検討したところ野生型と比較して欠損マウスでは各疾患モデルの病態の悪化が認められた。さらにCOPD患者由来の肺組織、肺細胞ではCARS2の発現が低下し、肺の呼吸機能とも関連することを明らかにした。以上より難治性呼吸器疾患の病態改善に寄与する可能性が示唆された。
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Report
(4 results)
Research Products
(87 results)
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[Journal Article] The efficacy profiles of concurrent chemoradiotherapy with intensity-modulated radiotherapy followed by durvalumab in patients with unresectable stage Ⅲ non- smaii cell lung cancer: A multicenter retrospective cohort study.2022
Author(s)
Takeda Y, Kusaba Y, Tsukita Y, Uemura Y, Miyauti E, Yamamoto T, Mayahara H, Hata A, Nakayama H, Tanaka S, Uchida J, Usui K Toyoda T, Tamiya M, Morimoto M,Oya Y, Kodaira T, Jingu K, Sugiura H
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Journal Title
Clin Transl Radiat Oncol.
Volume: 37
Pages: 57-63
DOI
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Peer Reviewed / Open Access
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[Journal Article] A Prospective Cohort Study to Assess Obstructive Respiratory Disease Phenotypes and Endotypes in Japan: The TRAIT Study Design.2021
Author(s)
Hizawa N, Fukunaga K, Sugiura H, Nakano Y, Kato M, Sugiyama Y, Hanazawa T, Kaise T, Ruth Tal-Singer, Paul W Jones, Neil Barnes, Chris Compton, Takeo Ishii T.
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Journal Title
Int J Chron Obstruct Pulmon Dis.
Volume: 16
Pages: 1813-1822
DOI
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Peer Reviewed / Open Access
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[Journal Article] Upregulation of leukocyte immunoglobulin-like receptor B4 on interstitial macrophages in COPD; their possible protective role against emphysema formation.2021
Author(s)
Mitsune A, Yamada M, Fujino N, Numakura T, Ichikawa T, Suzuki A, Matsumoto S, Mitsuhashi Y, Itakura K, Makiguchi T, Koarai A, Tamada T, Endo S, Takai T, Okada Y, Suzuki S, Ichinose M, Sugiura H.
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Journal Title
Respir Res
Volume: 22
Issue: 1
Pages: 232-232
DOI
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Peer Reviewed / Open Access
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[Journal Article] Intensity-modulated radiation therapy with concurrent chemotherapy followed by durvalumab for stage III non-small cell lung cancer: A multi-center retrospective study.2021
Author(s)
Tsukita Y, Yamamoto T, Mayahara H, Hata A, Takeda Y, Nakayama H, Tanaka S, Uchida J, Usui K, Toyoda T, Tamiya M, Morimoto M, Oya Y, Kodaira T, Miyauchi E, Jingu K, Sugiura H.
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Journal Title
Radiother Oncol.
Volume: 160
Pages: 266-272
DOI
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Peer Reviewed / Open Access
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[Journal Article] A case of localized tracheobronchial relapsing polychondritis with positive matrilin-1 staining.2020
Author(s)
Makiguchi T, Koarai A, Inoue C, Aoyama Y, Hirano T, Ohe T, Ichikawa T, Shishikura Y, Komuro H, Tsukita Y, Tode N, Numakura T, Saito T, Sato T, Mitsuhashi Y, Tamada T, Sugiura H, Ichinose M.
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Journal Title
BMC Rheumatol.
Volume: 4
Issue: 1
Pages: 1-1
DOI
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Peer Reviewed / Open Access
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[Presentation] Reactive sulfur species regulate immuno response via T cell receptor signaling.2022
Author(s)
Morita M, Yamada M, Sasaki Y, Numakura T, Ida T, Matsunaga T, Takata T, Watanabe A, Inaba K, Ishii N, Sugiura H, Moyohashi H, Akaike T
Organizer
The22nd Nitric oxide society of Japan
Related Report
Int'l Joint Research
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[Presentation] The Role of the Principal Cysteine Persulfide Synthase in the innate Immunity of Type 2 Airway Inflammation.2021
Author(s)
Suzuki A, Numakura T, Yamada M, Sasaki Y, Tanaka R, Mitsune A, Okuyama Y, Ishii N, Akaike T, Ichinose M, Sugiura H
Organizer
2021 ATS International Conference
Related Report
Int'l Joint Research
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[Presentation] Reactive sulfur species are involved in the regulation of innate immunity of type 2 airway inflammation2021
Author(s)
Suzuki A,Yamada M, Numakura T, Sasaki Y, Kyogoku Y, Tanaka R, Mitsune A, Matsumoto S, Okuyama Y,Ishii N, Akaike T, Ichinose M, Sugiura H.
Organizer
The 25th Congress of the Asian Pacific Society of Respirology
Related Report
Int'l Joint Research
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[Presentation] The role of the principal cysteine persulfide synthase in the innate immunity of type 2 airway inflammation2021
Author(s)
Suzuki A,Yamada M, Numakura T, Sasaki Y, Kyogoku Y, Tanaka R, Mitsune A, Okuyama Y, Ishii N, Akaike T, Ichinose M, Sugiura H
Organizer
第70回日本アレルギー学会学術大会
Related Report
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[Presentation] Deficiency of CARS2, a principal cysteine persulfide synthase, aggravated house dust mite induced allergic inflammation in a mouse model of asthma2020
Author(s)
Sasaki Y, Yamada M, Numakura T, Ida T, Morita M, Tanaka R, Fujino N, Ichikawa T, Okuyama Y, Ishii N, Akaike T, Sugiura H, Ichinose M
Organizer
ERS International Congress
Related Report
Int'l Joint Research
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[Presentation] Deficiency of a principal cysteine persulfide synthase aggravated airway allergic inflammation in a mouse model of asthma2020
Author(s)
Sasaki Y , Numakura T, Yamada M, Suzuki A, Fujino N, Ichikawa T, Koarai A, Akaike T, Ishii N, Sugiura H, Ichinose M
Organizer
JSA/WAO Joint Congress
Related Report
Int'l Joint Research
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