科学者が子宮内膜癌治療を改善するバイオマーカーを発見(Mount Sinai Scientists Discover Biomarkers That Could Improve Endometrial Cancer Treatment)

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2025-03-04 マウントサイナイ医療システム (MSHS)

マウントサイナイ医科大学の研究者たちは、再発性子宮内膜癌患者の治療効果を予測する血中バイオマーカーを特定しました。 この研究では、カボザンチニブとニボルマブの併用療法を受けた患者の血液中の特定のタンパク質が、治療反応性や副作用の発生と関連していることが示されました。具体的には、治療前にマクロファージ関連タンパク質のレベルが低い患者は、併用療法に対して良好な反応を示し、生存期間が延長する傾向がありました。一方、好中球関連タンパク質の高レベルは、副作用の増加と関連していました。これらの発見は、将来的に血液検査を用いて、患者ごとに最適な治療法を選択する個別化医療の実現に寄与する可能性があります。

<関連情報>

再発子宮内膜癌におけるカボザンチニブとニボルマブによる治療に対する反応性と抵抗性の免疫学的バイオマーカー Immunological biomarkers of response and resistance to treatment with cabozantinib and nivolumab in recurrent endometrial cancer

Vladimir Roudko,Marie Del Valle,Emir Radkevich,Geoffrey Kelly,Xie Hui,Manishkumar Patel,Edgar Gonzalez-Kozlova,Kevin Tuballes,Howard Streicher,Swati Atale,Lisa Wang,Benito CzinCzin,Seunghee Kim-Schulze,,Ignacio I Wistuba,Cara L Haymaker,Gheath Al-Atrash,Ganiraju Manyam,Jianjun Zhang,Ryan Thompson,Mayte Suarez-Farinas,Stephanie Lheureux andSacha Gnjatic
Journal for ImmunoTherapy of Cancer  Published:February 25, 2025
DOI:10.1136/jitc-2024-010541

科学者が子宮内膜癌治療を改善するバイオマーカーを発見(Mount Sinai Scientists Discover Biomarkers That Could Improve Endometrial Cancer Treatment)

Abstract

Background Antiangiogenics combined with immune checkpoint blockade have become standard of care for recurrent endometrial cancer after standard platinum-based chemotherapy. To dissect mechanisms and define biomarkers associated with clinical outcomes to these combinations, we applied multidimensional immune monitoring to peripheral blood specimens collected from a randomized phase 2 trial of nivolumab with or without cabozantinib in 75 evaluable patients with recurrent endometrial cancer (NCI ETCTN 10104, NCT03367741). This trial demonstrated superiority of the combination to nivolumab alone.

Methods and results Using Olink proteomics, mass cytometry, tumor antigen-specific ELISA, and whole exome tumor sequencing, we identified longitudinal immune signatures specific to cabozantinib use, including an increase in plasma HO-1 and reduction in plasma vascular endothelial growth factor receptor 2, interleukin-12, and circulating plasmacytoid dendritic cells. Prior exposure to immunotherapy and carcinosarcoma histology had no adverse impact on clinical benefit or biomarkers, and copy-number high tumors were associated with increased plasma granzymes on combination treatment. Higher baseline plasma levels of myeloid-related markers (chemokine ligand 23/CCL23, colony-stimulating factor-1/macrophage colony-stimulating factor/CSF1) were associated with poor overall and progression-free survival, and lack of clinical benefit (defined as progressive or stable disease <6 months) following combination treatment (Kaplan-Meier, multivariate Cox, false discover rate <0.05). Patients with favorable outcomes had higher levels of activated T-cell markers (plasma ICOS-L, CD28) and exhibited spontaneous autoantibody titers to tumor antigen NY-ESO-1. Patients experiencing severe adverse events from the combination therapy had higher baseline levels of neutrophil-derived markers (CXCL1).

Conclusions Overall, this study highlights potential resistance and response mechanisms to nivolumab+cabozantinib and suggests prioritizing combination treatment in patients with activated T-cell immunogenicity profiles while exploring future combinatorial therapies targeting myeloid populations to overcome resistance.

医療・健康
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