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  1. 原著論文

Antiemesis Corticosteroids Potentiate Checkpoint Blockade Efficacy by Normalizing the Immune Microenvironment in Metastatic Murine Breast Cancer.

https://repo.qst.go.jp/records/2002821
https://repo.qst.go.jp/records/2002821
3d1a31fd-6248-4584-ad77-4b49700c5558
アイテムタイプ 学術雑誌論文 / Journal Article(1)
公開日 2026-02-24
タイトル
タイトル Antiemesis Corticosteroids Potentiate Checkpoint Blockade Efficacy by Normalizing the Immune Microenvironment in Metastatic Murine Breast Cancer.
言語 en
言語
言語 eng
資源タイプ
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
資源タイプ journal article
著者 John D Martin

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John D Martin

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Koji Nagaoka

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Koji Nagaoka

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Myrofora Panagi

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Myrofora Panagi

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Akihiro Hosoi

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Akihiro Hosoi

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Fotios Mpkeris

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Fotios Mpkeris

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Pengwen Chen

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Pengwen Chen

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Thahomina T Khan

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Thahomina T Khan

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Margaret R Martin

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Margaret R Martin

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Changbo Sun

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Changbo Sun

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Chrysovalantis Voutouri

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Chrysovalantis Voutouri

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Maria Louca

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Maria Louca

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Panagiotis Papageorgis

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Panagiotis Papageorgis

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Akira Sumiyoshi

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Akira Sumiyoshi

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Nobuhiro Nitta

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Nobuhiro Nitta

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Kazuyoshi Takeda

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Kazuyoshi Takeda

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Ichio Aoki

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Ichio Aoki

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Kazunori Kataoka

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Kazunori Kataoka

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Triantafyllos Stylianopoulos

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Triantafyllos Stylianopoulos

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Kazuhiro Kakimi

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Kazuhiro Kakimi

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Horacio Cabral

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Horacio Cabral

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抄録
内容記述タイプ Abstract
内容記述 Glucocorticoid steroids are widely prescribed in oncology for managing treatment-related side effects, though their use is discouraged in patients undergoing immune checkpoint blockade (ICB). Given the crucial role of steroids in supportive care, it is imperative to develop integrated strategies that do not compromise ICB therapy effectiveness. Here, protocols of dexamethasone resembling clinical antiemesis regimens are tested in murine models of ICB-resistant breast cancer. Unexpectedly, dexamethasone enhanced the efficacy of ICB in models of primary cancer and spontaneous metastasis. Dexamethasone increased the volume of blood vessels within tumors, thereby facilitating lymphocyte infiltration and intratumor distribution. Additionally, dexamethasone depleted immunosuppressive cells and potentiated the capacity of ICB to enrich tumors of antigen-recognizing cytotoxic lymphocytes. Importantly, it is found that dexamethasone does not abolish the functions of antigen-naïve lymphocytes and has no effect on the activity of antigen-experienced lymphocytes. These findings align with recent clinical guidelines and meta-analyses, suggesting that dexamethasone deserves further exploration in ICB protocols to potentially benefit efficacy. Our study supports the notion that the current practice of avoiding short-term glucocorticoid steroids in patients receiving ICB should be reconsidered toward enabling the use of steroids in clinical trials of new drug combinations.
書誌情報 Advanced science (Weinheim, Baden-Wurttemberg, Germany)

p. e14261, 発行日 2025-11
出版者
出版者 Weinheim
ISSN
収録物識別子タイプ ISSN
収録物識別子 2198-3844
PubMed番号
識別子タイプ PMID
関連識別子 41313745
DOI
識別子タイプ DOI
関連識別子 10.1002/advs.202514261
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