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2020 Fiscal Year Research-status Report

がん免疫療法効果予測に資する病理学的指標の探索

Research Project

Project/Area Number 18K07036
Research InstitutionNational Cancer Center Japan

Principal Investigator

元井 紀子  国立研究開発法人国立がん研究センター, 中央病院, 医長 (70292878)

Project Period (FY) 2018-04-01 – 2022-03-31
Keywords病理形態学 / 予後予測指標 / デジタル画像解析 / がん免疫環境 / バイオマーカー
Outline of Annual Research Achievements

本研究の目的は、がんの最適医療のために必要な病理学的指標の確立である。肺癌は、個別化医療が進み、活性化キナーゼ阻害剤や免疫チェックポイント阻害剤(ICI)の開発は、一部の患者に大きな恩恵をもたらしている。治療方針の最適化のためには、がんの個性を読み解き、適した治療を選択する指標(バイオマーカー)を確立する必要がある。ICIでPD-L1が普及しているが、その性能は不十分で、より精度の高いバイオマーカーの探索と確立は喫緊の課題である。
本研究では、ICIに対する病理学的予測指標を探索し、その意義を検討した。(1)ICI治療を受けた肺がんの病理検体の特徴を検討し、病理形態学的な指標(核異型度、炎症の程度)が予後予測指標となることを見出した。病理医の目視評価を客観化するために、HE染色標本のデジタル画像を作成し、がん細胞の形態学的特徴量(MBM)を画像解析により定量化した。前年までに、MBMは決定木法モデルで妥当な性能が期待できることを示したが、本年度は、症例数を増やした深層学習(DNN)による最適化と検証実験を実施した。DNN-MBMは従来のバイオマーカーであるPD-L1を超える治療効果および予後予測性能を示した。(2)生物学的意義の検討のために、がんのMBMと腫瘍浸潤免疫細胞(TIL)、ゲノム情報、臨床情報との関連性を統計学的に解析した。MBMは、遺伝子変異、TMBと中等度に関連、PD-L1 IHCと弱く関連した。MBMは全例で解析可能であり、TMB, PD-L1と比して解析成功率が高かった。(3)非小細胞癌の免疫染色によるTIL検討の結果、CD8陽性Tリンパ球の腫瘍内への浸潤は予後、ICIの治療効果と関連することを示した。
以上より、腫瘍組織の病理学的特徴は、客観的に抽出可能な因子であり、PD-L1とは独立しており、実臨床に応用可能な新規バイオマーカーとして有望といえる。

Current Status of Research Progress
Current Status of Research Progress

3: Progress in research has been slightly delayed.

Reason

新型コロナの流行により、ゲノム解析等の遅れがあり、統合解析にやや遅れが生じた。

Strategy for Future Research Activity

本研究で、形態学的バイオマーカーはICI治療効果予測に有用であることが示された。これまでの研究対象は、ICI単剤による解析であったが、実臨床ではICIと化学療法の併用療法が登場し、治療法の変化に対応できるかどうかを検索する必要がある。また、実用化を目指し、その他のバイオマーカーとの役割検証、検体種、検体採取時期などの解析結果への影響、AI画像解析の自動化など、課題について研究を進める必要がある。平行して、殺細胞性抗癌剤やキナーゼ阻害剤など他の治療法に対する本技術の応用可能性も検討を進めたい。

Causes of Carryover

新型コロナの流行により、研究解析の遅れが生じたため。次年度には、解析、研究を完了すべく鋭意研究を進めている。

  • Research Products

    (20 results)

All 2021 2020

All Journal Article (18 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 18 results,  Open Access: 4 results) Presentation (2 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Influence of degree of DNA degradation in formalin-fixed and paraffin-embedded tissue samples on accuracy of genome-wide DNA methylation analysis2021

    • Author(s)
      Ueda S, Yamashita S, Watanabe S-i, Wakabayashi M, Motoi N, Noguchi M, Sekine S, Sato Y, Ushijima T.
    • Journal Title

      Epigenomics

      Volume: - Pages: -

    • DOI

      10.2217/epi-2020-0431

    • Peer Reviewed
  • [Journal Article] HSP90 inhibition overcomes EGFR amplification-induced resistance to third-generation EGFR-TKIs2021

    • Author(s)
      Watanabe S, Goto Y, Yasuda H, Kohno T, Motoi N, Ohe Y, Nishikawa H, Kobayashi SS, Kuwano K, Togashi Y.
    • Journal Title

      Thoracic Cancer

      Volume: 12 Pages: 631-42

    • DOI

      10.1111/1759-7714.13839

    • Peer Reviewed
  • [Journal Article] Disease flare of leptomeningeal metastases without radiological and cytological findings after the discontinuation of osimertinib2021

    • Author(s)
      Takahashi T, Umeguchi H, Tateishi A, Yoshida T, Motoi N, Ohe Y.
    • Journal Title

      Lung Cancer

      Volume: 151 Pages: p1-4

    • DOI

      10.1016/j.lungcan.2020.11.010

    • Peer Reviewed
  • [Journal Article] Pulmonary microinvasive small cell carcinoma with extensive in situ component identified after photodynamic therapy for 窶?squamous cell carcinoma in situ窶?: A case report2021

    • Author(s)
      Ota M, Nakatani Y, Nakajima T, Hiroshima K, Motoi N, Yoshino I, Ikeda J-i.
    • Journal Title

      Histopathology

      Volume: 78 Pages: 912-6

    • DOI

      10.1111/his.14308

    • Peer Reviewed
  • [Journal Article] Vaginal Transmission of Cancer from Mothers with Cervical Cancer to Infants2021

    • Author(s)
      Arakawa A, Ichikawa H, Kubo T, Motoi N, Kumamoto T, Nakajima M, Yonemori K, Noguchi E, Sunami K, Shiraishi K, Kakishima H, Yoshida H, Hishiki T, Kawakubo N, Kuroda T, Kiyokawa T, Yamada K, Yanaihara N, et al, and Kohno T, Ogawa C.
    • Journal Title

      New England Journal of Medicine

      Volume: 384 Pages: 42-50

    • DOI

      10.1056/NEJMoa2030391

    • Peer Reviewed
  • [Journal Article] Feasibility of next-generation sequencing (Oncomine邃「 DX Target Test) for the screening of oncogenic mutations in advanced non-small-cell lung cancer patients2021

    • Author(s)
      Takeyasu Y, Yoshida T, Motoi N, Teishikata T, Tanaka M, Matsumoto Y, Shinno Y, Okuma Y, Goto Y, Horinouchi H, Kakishima H, Tsuchida T, Yamamoto N, Ohe Y, Yatabe Y.
    • Journal Title

      Jpn J Clin Oncol

      Volume: 繝シ Pages: 繝シ

    • DOI

      10.1093/jjco/hyab059

    • Peer Reviewed
  • [Journal Article] Differential Efficacy of Pembrolizumab According to Metastatic Sites in Patients With PD-L1 Strongly Positive (TPS >/= 50%) NSCLC2020

    • Author(s)
      Takeyasu Y, Yoshida T, Shibaki R, Matsumoto Y, Goto Y, Kanda S, Horinouchi H, Yamamoto N, Motoi N, Ohe Y.
    • Journal Title

      Clin Lung Cancer

      Volume: - Pages: -

    • DOI

      10.1016/j.cllc.2020.10.002

    • Peer Reviewed
  • [Journal Article] Impact of chemoradiotherapy (CRT) on immune-related tumor microenvironment and efficacy of anti-PD-1 therapy for recurrences after CRT in patients with unresectable locally advanced NSCLC2020

    • Author(s)
      Shirasawa M, Yoshida T, Matsumoto Y, Shinno Y, Okuma Y, Goto Y, Horinouchi H, Yamamoto N, Watanabe S-i, Ohe Y, Motoi N.
    • Journal Title

      European Journal of Cancer

      Volume: 140 Pages: 28-36

    • Peer Reviewed
  • [Journal Article] Prognostic impact of peripheral blood neutrophil to lymphocyte ratio in advanced-stage pulmonary large cell neuroendocrine carcinoma and its association with the immune-related tumour microenvironment2020

    • Author(s)
      Shirasawa M, Yoshida T, Horinouchi H, Kitano S, Arakawa S, Matsumoto Y, Shinno Y, Okuma Y, Goto Y, Kanda S, Watanabe R, Yamamoto N, Watanabe S-i, Ohe Y, Motoi N.
    • Journal Title

      British Journal of Cancer

      Volume: - Pages: -

    • DOI

      10.1038/s41416-020-01188-7

    • Peer Reviewed
  • [Journal Article] CD20(+) tumor-infiltrating immune cells and CD204(+) M2 macrophages are associated with prognosis in thymic carcinoma2020

    • Author(s)
      Sato J, Kitano S, Motoi N, Ino Y, Yamamoto N, Watanabe S, Ohe Y, Hiraoka N.
    • Journal Title

      Cancer Sci

      Volume: 111 Pages: 1921-32

    • DOI

      10.1111/cas.14409

    • Peer Reviewed / Open Access
  • [Journal Article] Long-read sequencing for non-small-cell lung cancer genomes2020

    • Author(s)
      Sakamoto Y, Xu L, Seki M, Yokoyama TT, Kasahara M, Kashima Y, Ohashi A, Shimada Y, Motoi N, Tsuchihara K, Kobayashi SS, Kohno T, Shiraishi Y, Suzuki A, Suzuki Y.
    • Journal Title

      Genome Res

      Volume: 30 Pages: 1243-57

    • DOI

      10.1101/gr.261941.120

    • Peer Reviewed / Open Access
  • [Journal Article] Feasibility study of cryobiopsy for practical pathological diagnosis of primary lung cancer including immunohistochemical assessment2020

    • Author(s)
      Nishida T, Matsumoto Y, Sasada S, Tanaka M, Nakai T, Fukai R, Ohe Y, Watanabe SI, Motoi N.
    • Journal Title

      Jpn J Clin Oncol

      Volume: 繝シ Pages: 繝シ

    • DOI

      10.1093/jjco/hyaa174

    • Peer Reviewed
  • [Journal Article] A Grading System for Invasive Pulmonary Adenocarcinoma: A Proposal From the International Association for the Study of Lung Cancer Pathology Committee2020

    • Author(s)
      Moreira AL, Ocampo PSS, Xia Y, Zhong H, Russell PA, Minami Y, Cooper WA, Yoshida A, Bubendorf L, Papotti M, Pelosi G, Lopez-Rios F, Kunitoki K, Ferrari-Light D, Sholl LM, et al., Motoi N, Noguchi M, et al., and Nicholson AG, Mino-Kenudson M.
    • Journal Title

      J Thorac Oncol

      Volume: 15 Pages: 1599-610

    • DOI

      10.1016/j.jtho.2020.06.001

    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] PD-L1 Testing for Lung Cancer in 2019: Perspective From the IASLC Pathology Committee2020

    • Author(s)
      Lantuejoul S, Sound-Tsao M, Cooper WA, Girard N, Hirsch FR, Roden AC, Lopez-Rios F, Jain D, Chou TY, Motoi N, et al. and Wistuba, II, Mino-Kenudson M.
    • Journal Title

      J Thorac Oncol

      Volume: 15 Pages: 499-519

    • DOI

      10.1016/j.jtho.2019.12.107

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical outcomes of pembrolizumab therapy in advanced-NSCLC patients with poor performance status (竕・3) and high PD-L1 expression (TPS 竕・50%): A case series2020

    • Author(s)
      Inaba-Higashiyama R, Yoshida T, Jo H, Shirasawa M, Motoi N, Ohe Y.
    • Journal Title

      Thoracic Cancer

      Volume: 11 Pages: 3618-21

    • DOI

      10.1111/1759-7714.13713

    • Peer Reviewed
  • [Journal Article] Chaperone-mediated autophagy receptor modulates tumor growth and chemoresistance in non-small cell lung cancer2020

    • Author(s)
      Ichikawa A, Fujita Y, Hosaka Y, Kadota T, Ito A, Yagishita S, Watanabe N, Fujimoto S, Kawamoto H, Saito N, Yoshida M, Hashimoto M, Minagawa S, Hara H, Motoi N, Yamamoto Y, Ochiya T, Araya J, Kuwano K.
    • Journal Title

      Cancer Sci

      Volume: 111 Pages: 4154-65

    • DOI

      10.1111/cas.14629

    • Peer Reviewed / Open Access
  • [Journal Article] RB1 loss induced small cell lung cancer transformation as acquired resistance to pembrolizumab in an advanced NSCLC patient2020

    • Author(s)
      Arakawa S, Yoshida T, Shirasawa M, Takayanagi D, Yagishita S, Motoi N, Ohe Y.
    • Journal Title

      Lung Cancer

      Volume: 繝シ Pages: 繝シ

    • DOI

      10.1016/j.lungcan.2020.11.016

    • Peer Reviewed
  • [Journal Article] Small Cell Cancer Transformation of Lung Adenocarcinoma During Durvalumab Treatment After Chemoradiotherapy2020

    • Author(s)
      Arakawa S, Yoshida T, Nakayama Y, Motoi N, Ohe Y.
    • Journal Title

      J Thorac Oncol

      Volume: 15 Pages: e145-e6

    • DOI

      10.1016/j.jtho.2019.12.117

    • Peer Reviewed
  • [Presentation] Predictive Efficacy of Morphological Biomarkers Based on Digital Pathology for ICI Therapy of Non-Small Cell Lung Cancer2020

    • Author(s)
      ?サソMotoi N, Yoshida H, Kiyuna T, Saiga H, Horinouchi H, Yoshida T, Kohno T, Watanabe S-i, Ohe Y, Ochiai A
    • Organizer
      2020 World Conference on Lung Cancer (WCLC)
    • Int'l Joint Research
  • [Presentation] Impact of SWI/SNF complex mutations in patients with non-small cell lung cancer (NSCLC) treated with immune checkpoint inhibitors: Immuno-oncology biomarker study in LC-SCRUM-Japan (LC-SCRUM-IBIS)2020

    • Author(s)
      Yoh K, Matsumoto S, Furuya N, Nishino K, Miyamoto S, Oizumi S, Okamoto N, Itani H, Kuyama S, Nakamura A, Hayashi Y, Motoi N, Ishii G, Goto K
    • Organizer
      2020 ASCO
    • Int'l Joint Research

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Published: 2021-12-27  

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