Probiotic metabolite found to suppress melanoma tumor growth in mice - 2026世界杯

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一项新的研究表明,一种益生菌产生的代谢物能够抑制小鼠黑色瘤的生长。

尽管免疫检查点抑制剂(如抗PD-1疗法)已显著改变了黑色瘤的治疗格局,但仍有超过一半的患者对此类疗法反应不佳或最终产生耐药性。目前,肿瘤微环境和肠道微生物组被越来越广泛地认为是影响治疗效果的关键因素。

研究人员发现,一种名为3-indolepropionic acid(IPA)的代谢物,由某些肠道细菌产生,能够显著减缓小鼠黑色瘤的生长速度。在接受IPA治疗的小鼠模型中,肿瘤体积和数量均有所下降。

进一步的实验揭示了IPA的作用机制。研究发现,IPA能够增强T细胞的功能,使其更有效地识别并攻击肿瘤细胞。具体而言,IPA能够促进T细胞内一种关键信号通路,从而提高其抗肿瘤活性。此外,IPA还有助于改变肿瘤微环境,减少免疫抑制细胞的存在,为免疫细胞的浸润和杀伤创造更有利的条件。

该研究的通讯作者,来自[大学/研究机构名称]的[教授姓名]博士表示:“我们的研究为利用肠道微生物群来增强癌症免疫疗法提供了新的视角。IPA作为一种潜在的治疗辅助手段,有望改善那些对现有疗法反应不佳的黑色瘤患者的预后。”

研究团队还对接受抗PD-1治疗的黑色瘤患者进行了分析,发现肠道中IPA水平较高的患者,其治疗反应和生存率普遍优于IPA水平较低的患者。这为IPA在临床上的应用提供了初步的证据支持。

尽管这项研究在小鼠模型中取得了令人鼓舞的结果,但研究人员也强调,在将IPA应用于人体临床试验之前,还需要进行更深入的研究,以评估其安全性和有效性。未来的研究将侧重于确定最佳的给药剂量和方案,以及与其他治疗方法的联合应用潜力。

这项发现为开发新型的黑色瘤治疗策略开辟了新的途径,有望为广大患者带来新的希望。

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HomeScoreAwayLeagueTime (CST)
Valencia BasketFC Barcelona BasquetSpanish Liga ACB02:00
Hapoel Tel Aviv BCMaccabi Tel Aviv BCIsraeli Basketball Premier League01:50
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Élan BéarnaisPoitiers Basket 86French LNB Pro B02:30
Indiana FeverAtlanta DreamWNBA07:30
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Updated 2026-06-18 22:09 (CST)

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