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Regulation and determining mechanisms of melanocyte killing in vitiligo

Research Project

Project/Area Number 21K08356
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53050:Dermatology-related
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Fukuda Keitaro  国立研究開発法人理化学研究所, 生命医科学研究センター, 上級研究員 (60464848)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords尋常性白斑 / CD8+T細胞 / FASL / IFNγ / ヘモグロビンA / ケラチノサイト / 酸化ストレス / メラノサイト細胞死 / ロドデンドロール / 細胞内Caイオン / 細胞内pH / ヘモグロビン / 細胞内酸性化 / メラノサイト / 細胞死 / 消失 / メカニズム / 制御
Outline of Research at the Start

申請者らは、ヒト同様、表皮基底層にメラノサイトが分布するK14-Scfマウスに、gp100特異的CD8+T細胞(PMELs)の静注、放射線照射、IL-2の腹腔内投与およびgp100ペプチドパルス樹状細胞ワクチンの静注を行い、5-7週後にヒト尋常性白斑に酷似した白斑を形成するマウスの作製に成功した。本研究では、このin vivoの系に、IFN-γなどの細胞傷害性分子の遺伝子を欠失したPMELs、メラノサイトレポーターマウスなどを導入し、免疫学的解析・遺伝子解析・3次元ライブイメージングを行うことで、尋常性白斑におけるメラノサイト消失機構を明らかにする。

Outline of Final Research Achievements

In this study, we attempted to determine molecules involved in melanocyte clearance in vitiligo. We generated multiple vitiligo mouse models by injecting melanocyte-specific CD8+ T cells lacking single effector molecules, such as IFN-γ, TNF-α, and FASL. We found that FASL is involved in melanocyte clearance in vitiligo in addition to IFN-γ. Furthermore, we performed RNA-seq analysis of the whole epidermis and upper epidermis to determine candidates for unidentified molecules expressed in the epidermis that contribute to melanocyte clearance in vitiligo. During this process, we unexpectedly identified that hemoglobin α (HBA), which serves as an oxygen carrier in erythroid cells, was expressed in the upper epidermis keratinocytes and hair follicle keratinocytes in the isthmus region. Functional analysis revealed that HBA in keratinocytes is induced by oxidative stress and plays a role in reducing the oxidative stress of keratinocytes, contributing to the skin barrier function.

Academic Significance and Societal Importance of the Research Achievements

最近、尋常性白斑に対し、欧米でJAK阻害薬が認可されたが、過半数の症例は治療に奏効せず、より有効な治療法の開発のため、更なる尋常性白斑の病態機構の解明が望まれている。我々は、尋常性白斑モデルマウスの解析からIFNγに加え、CD8+T細胞に発現するFASLが治療標的となることを明らかにした。また表皮の解析を通じて、ヘモグロビンA(HBA)が、紫外線などの酸化ストレスにより表皮上層のケラチノサイトに誘導され、酸化ストレスを軽減することで皮膚バリアの一端を担うことを発見した。尋常性白斑の病態に酸化ストレスが関与されていることが知られているが、そこにHBAがどのように関与するか更なる解析が望まれる。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (18 results)

All 2024 2023 2022 2021

All Journal Article (12 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 12 results,  Open Access: 6 results) Presentation (6 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] Three stepwise pH progressions in stratum corneum for homeostatic maintenance of the skin.2024

    • Author(s)
      Fukuda Keitaro, Ito Yoshihiro, Furuichi Yuki, Matsui Takeshi, Horikawa Hiroto, Miyano Takuya, Okada Takaharu, van Logtestijn Mark, Tanaka Reiko J, Miyawaki Atsushi, Amagai Masayuki
    • Journal Title

      Nature Communications

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Visualization of intradermal blood vessel structures by dual-wavelength photoacoustic microscopy and characterization of three-dimensional construction of livedo-racemosa in cutaneous polyarteritis nodosa2024

    • Author(s)
      Sujino Kazuyo、Tanese Keiji、Saito Yasuko、Kuramoto Junko、Iwazaki Hideaki、Ida Taiichiro、Aiso Sadakazu、Imanishi Nobuaki、Kajita Hiroki、Fukuda Keitaro、Amagai Masayuki、Tanikawa Akiko
    • Journal Title

      Journal of Dermatological Science

      Volume: - Issue: 2 Pages: 71-78

    • DOI

      10.1016/j.jdermsci.2024.03.010

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Keratinocytes of the Upper Epidermis and Isthmus of Hair Follicles Express Hemoglobin mRNA and Protein2023

    • Author(s)
      Tahara Umi、Matsui Takeshi、Atsugi Toru、Fukuda Keitaro、Terooatea Tommy W.、Minoda Aki、Kubo Akiharu、Amagai Masayuki
    • Journal Title

      Journal of Investigative Dermatology

      Volume: 143 Issue: 12 Pages: 2346-2355.e10

    • DOI

      10.1016/j.jid.2023.08.008

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Successful management of severe alopecia areata and vitiligo using topical delgocitinib and a 308-nm excimer laser2023

    • Author(s)
      Murakami Kaori、Saito Yasuko、Takeuchi Sakiko、Sujino Kasuyu、Tanikawa Akiko、Tanese Kenji、Fukuda Keitaro
    • Journal Title

      European Journal of Dermatology

      Volume: 33 Issue: 4 Pages: 428-430

    • DOI

      10.1684/ejd.2023.4513

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Immune Regulation by Cytosolic DNA Sensors in the Tumor Microenvironment2023

    • Author(s)
      Fukuda Keitaro
    • Journal Title

      Cancers

      Volume: 15 Issue: 7 Pages: 2114-2114

    • DOI

      10.3390/cancers15072114

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] IFNγ score-based neoadjuvant immunotherapy for stage III melanoma2023

    • Author(s)
      Fukuda Keitaro
    • Journal Title

      Journal of Experimental Medicine

      Volume: 220 Issue: 5

    • DOI

      10.1084/jem.20230160

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Successful management of tumor necrosis factor‐α inhibitor‐induced erythema multiforme by switching to a Janus kinase inhibitor in a patient with rheumatoid arthritis and ulcerative colitis2022

    • Author(s)
      Takeuchi Sakiko、Fukuda Keitaro、Tanaka Ryo、Funakoshi Takeru、Takahashi Hayato、Amagai Masayuki、Tanikawa Akiko
    • Journal Title

      The Journal of Dermatology

      Volume: 50 Issue: 4

    • DOI

      10.1111/1346-8138.16643

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Management and outcomes of hydronephrosis in patients with metastatic extramammary Paget’s disease: A retrospective analysis2022

    • Author(s)
      Fusumae Takayuki、Fukuda Keitaro、Hirai Ikuko、Nakamura Yoshio、Kobayashi Kenta、Tanese Keiji、Matsumoto Kazuhiro、Iwata Takashi、Funakoshi Takeru
    • Journal Title

      The Journal of Dermatology

      Volume: 49 Issue: 8 Pages: 787-791

    • DOI

      10.1111/1346-8138.16407

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Networks of CD8+ T Cell Response Activation in Melanoma and Vitiligo2022

    • Author(s)
      Fukuda Keitaro
    • Journal Title

      Frontiers in Immunology

      Volume: 13 Pages: 866703-866703

    • DOI

      10.3389/fimmu.2022.866703

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] AIM2 regulates anti-tumor immunity and is a viable therapeutic target for melanoma2021

    • Author(s)
      Fukuda Keitaro、Okamura Ken、Riding Rebecca L.、Fan Xueli、Afshari Khashayar、Haddadi Nazgol-Sadat、McCauley Sean M.、Guney Mehmet H.、Luban Jeremy、Funakoshi Takeru、Yaguchi Tomonori、Kawakami Yutaka、Khvorova Anastasia、Fitzgerald Katherine A.、Harris John E.
    • Journal Title

      Journal of Experimental Medicine

      Volume: 218 Issue: 9

    • DOI

      10.1084/jem.20200962

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Adoptive cell therapy using tumor-infiltrating lymphocytes for melanoma refractory to immune-checkpoint inhibitors.2021

    • Author(s)
      Hirai I, Funakoshi T, Kamijuku H, Fukuda K, Mori M, Sakurai M, Koda Y, Kato J, Mori T, Watanabe N, Noji S, Yaguchi T, Iwata T, Ohta S, Fujita T, Tanosaki R, Handa M, Okamoto S, Amagai M, Kawakami Y.
    • Journal Title

      Cancer Sci.

      Volume: 112 Issue: 8 Pages: 3163-3172

    • DOI

      10.1111/cas.15009

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Type I interferon signaling limits viral vector priming of CD8 + T cells during initiation of vitiligo and melanoma immunotherapy2021

    • Author(s)
      Riding Rebecca L.、Richmond Jillian M.、Fukuda Keitaro、Harris John E.
    • Journal Title

      Pigment Cell & Melanoma Research

      Volume: 34 Issue: 4 Pages: 683-695

    • DOI

      10.1111/pcmr.12935

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] ヘモグロビンαは表皮上層と毛包峡部の角化細胞に発現し、酸化ストレスにより誘導される2023

    • Author(s)
      田原海、松井毅、福田桂太郎、天谷雅行.
    • Organizer
      第44回日本炎症・再生医学会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Stratum corneum homeostasis requires three-stepwise pH zones mediated by the functional cell death of keratinocytes, corneoptosis.2023

    • Author(s)
      Fukuda Keitaro, Ito Yoshihiro, Furuichi Yuki, Miyano Takuya, Tanaka Reiko J, Matsui Takeshi, Amagai Masayuki
    • Organizer
      1st International Society for Investigative Dermatology Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Hemoglobin A is expressed as a potential endogenous antioxidant in differentiated epidermal keratinocytes2022

    • Author(s)
      Umi Tahara, Takeshi Matsui, Toru Atsugi, Keitaro Fukuda, Akiharu Kubo, Masayuki Amagai
    • Organizer
      2022 ESDR Annual Meeting
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] AIM2 regulates anti-tumor immunity and serves as a viable therapeutic target for melanoma2021

    • Author(s)
      Fukuda K, Riding RL, Xueli F, McCauley SM, Luban J, Yaguchi T, Kawakami Y, Khvorova A, Fitzgerald KA, and Harris JE
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] AIM2 regulates anti-tumor immunity and serves as a viable therapeutic target for melanoma immunotherapy2021

    • Author(s)
      Fukuda K, Okamura K, Riding RL, Xueli F, McCauley SM, Luban J, Funakoshi T, Yaguchi T, Kawakami Y, Khvorova A, Fitzgerald KA, and Harris JE
    • Organizer
      JSID 2021 Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] An important role of Syntaxin-4 in nuclear degradation in corneoptosis, a unique cell death of keratinocytes2021

    • Author(s)
      Maekubo-Kadono N, Fukuda K, Matsui T, and Amagai M
    • Organizer
      JSID 2021 Annual Meeting
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-04-28   Modified: 2025-01-30  

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