327-Paneth 样转变驱动结直肠癌双靶向耐药 episode artwork

EPISODE · Dec 20, 2025 · 19 MIN

327-Paneth 样转变驱动结直肠癌双靶向耐药

from 聊聊Sci

这篇文章重点探讨了KRAS突变结直肠癌 (CRC)对KRAS和EGFR双靶向治疗产生获得性耐药的机制。研究人员发现,CRC细胞通过谱系可塑性,转化为一种特殊的潘氏细胞样状态以逃避药物作用。该耐药机制的关键在于SMAD1-FGFR3信号轴的激活,该信号轴驱动了细胞转变,并促使癌细胞内的MAPK通路重新激活。通过在多种模型和患者活检样本中进行验证,作者证实了这种潘氏细胞样可塑性是保守的耐药策略。功能性实验表明,靶向FGFR3能够有效阻断这一细胞状态转变,并恢复肿瘤细胞对双重抑制剂的敏感性。因此,联合使用FGFR3抑制剂为克服CRC中由细胞可塑性驱动的耐药性提供了一种有前景的临床策略。References: Zhang Y, Chen J, She Y, et al. Paneth-like transition drives resistance to dual targeting of KRAS and EGFR in colorectal cancer[J]. Cancer Cell, 2025.前往小宇宙评论区与主播互动

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327-Paneth 样转变驱动结直肠癌双靶向耐药

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