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Relationship between microbiota changes on the epithelium and onset of epithelial infectious diseases caused by HIV infection, and application to palliative care against the diseases

Research Project

Project/Area Number 19KK0243
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 58:Society medicine, nursing, and related fields
Research InstitutionKanazawa University

Principal Investigator

Okamoto Shigefumi  金沢大学, 新学術創成研究機構, 教授 (50311759)

Co-Investigator(Kenkyū-buntansha) 倉石 貴透  金沢大学, 薬学系, 准教授 (90613167)
大貝 和裕  金沢大学, AIホスピタル・マクロシグナルダイナミクス研究開発センター(保), 准教授 (40706983)
須釜 淳子  藤田医科大学, 保健衛生学部, 教授 (00203307)
Project Period (FY) 2019-10-07 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Fiscal Year 2022: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Keywords皮膚 / HIV / マイクロバイオーム / ディスバイオーシス / 皮膚細菌叢 / カメルーン / HIV感染 / 皮膚常在細菌叢 / α多様性 / β多様性 / Micrococcus / 採取方法 / 難治性皮膚粘膜感染症 / 緩和ケア
Outline of Research at the Start

HIV感染者は,無症候期末期以降に皮膚・粘膜などに不快な症状を持続的に呈する難治性の皮膚粘膜感染症(口腔カンジダ症,白癬,脂漏性皮膚炎など)を頻発し、QOLの重大な低下をもたらす.しかし,その発症の詳細について不明な点が多く残されている.申請者らは,カメルーン・ヤウンデ第一大学と共同で「HIV感染による難治性の皮膚粘膜感染症の発症における皮膚粘膜常在細菌叢変化との関連性」を明らかにし,その原因の解明を目指す.さらにその結果に基づくHIV感染者のQOL向上を目的とした皮膚粘膜感染症発症予防ならびに軽減を目的とした緩和ケア方法の確立を目指す.

Outline of Final Research Achievements

In collaboration with Cameroon and the United States, we investigated the relationship between HIV infection and changes in skin microbiota composition in Cameroon.
In order to understand the characteristics of the composition of Cameroonian skin microflora, a comparative study was conducted with that of Japanese skin microbiota. As a result, it became clear that the composition differs greatly between the two.
Next, we examined the composition of the skin microflora in Cameroonians between healthy, HIV-infected, and AIDS patients. HIV-infected Cameroonians had higher skin microbiome alpha diversity and significantly altered beta diversity. In addition, HIV-infected individuals had increased prevalence of Micrococcus and Kocuria, and significantly decreased prevalence of Cutibacterium.

Academic Significance and Societal Importance of the Research Achievements

我々は、HIVに感染したカメルーン人において、一部の細菌の相対数が増加し、一部の細菌が減少していることを示し、皮膚細菌叢のアルファ多様性がより大きく、ベータ多様性が健康な対応物とは異なることを明らかにした。 これらの発見は総合し、HIV 感染がヒトの皮膚マイクロバイオームに影響を与えることを示唆した。この研究は、HIV感染の影響下での皮膚症状と、皮膚マイクロバイオームを介した皮膚と身体間のクロストークをよりよく理解するための基本的な情報を提供する可能性を示すものであり、HIV感染による様々な皮膚における日和見感染症の発症原因を検討する新たな検討事項になることが期待される。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (9 results)

All 2022 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (4 results)

  • [Int'l Joint Research] University of Yaaunde 1(カメルーン)

    • Related Report
      2019 Research-status Report
  • [Int'l Joint Research] University of Hawaii at Manoa(米国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Skin microbiome profile of healthy Cameroonians and Japanese2022

    • Author(s)
      Ogai Kazuhiro、Nana Benderli Christine、Lloyd Yukie Michelle、Arios John Paul、Jiyarom Boonyanudh、Awanakam Honore、Esemu Livo Forgu、Hori Aki、Matsuoka Ayaka、Nainu Firzan、Megnekou Rosette、Leke Rose Gana Fomban、Ekali Gabriel Loni、Okamoto Shigefumi、Kuraishi Takayuki
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 1364-1364

    • DOI

      10.1038/s41598-022-05244-5

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct Skin Microbiome and Skin Physiological Functions Between Bedridden Older Patients and Healthy People: A Single-Center Study in Japan2020

    • Author(s)
      Nagase Satoshi、Ogai Kazuhiro、Urai Tamae、Shibata Kana、Matsubara Emi、Mukai Kanae、Matsue Miki、Mori Yumiko、Aoki Miku、Arisandi Defa、Sugama Junko、Okamoto Shigefumi
    • Journal Title

      Frontiers in Medicine

      Volume: 7 Pages: 101-101

    • DOI

      10.3389/fmed.2020.00101

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Feasibility of microbial sample collection on the skin from people in Yaoundé, Cameroon2019

    • Author(s)
      4.Benderli NC†, Ogai K†, Lloyd YM, Arios JP, Jiyarom B, Awanakam AH, Esemu LF, Hori A, Megnekou R, Leke RGF, Kuraishi T*, Okamoto S*, Ekali GL
    • Journal Title

      Drug Discoveries & Therapeutics

      Volume: 13 Issue: 6 Pages: 360-364

    • DOI

      10.5582/ddt.2019.01075

    • NAID

      130007788549

    • ISSN
      1881-7831, 1881-784X
    • Year and Date
      2019-12-31
    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] A new measuring method for antimicrobial activity of lauric acid against various human gut microbes2020

    • Author(s)
      松岡礼華,大貝和裕,倉石貴透,岡本成史
    • Organizer
      第93回日本細菌学会総会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 寝たきり高齢者における皮膚細菌叢の変化と褥瘡後感染の発症への影響2020

    • Author(s)
      長瀬賢史,大貝和裕,浦井珠恵,柴田佳奈,向井加奈恵,松榮美希,青木未来,Defa Alsandi,須釜淳子,岡本成史
    • Organizer
      第93回日本細菌学会総会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] A new measuring method for antimicrobial activity of lauric acid against various human gut microbes.2020

    • Author(s)
      松榮美希,森裕美子,長瀬賢史,小倉康平,大貝和裕,杉山友太,平野里佳,栗原 新,岡本成史
    • Organizer
      第93回日本細菌学会総会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 富山県立中央病院において分離されたLancefield A群 Streptococcus dysgalactiae subsp. equisimilis のゲノム解析.2020

    • Author(s)
      石原春香,小倉康平,彼谷裕康,中村雅彦,秋山徹,岡本成史.
    • Organizer
      第93回日本細菌学会総会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2019-10-10   Modified: 2024-01-30  

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