什么是节拍化疗?节拍化疗在乳腺癌和肺癌中的研究汇总

2020-07-29 MedSci原创 MedSci原创

1971年美国哈佛医学院Folkman教授首次大胆地提出抑制肿瘤血管新生可以抑制肿瘤组织持续生长转移的假说,随着研究的深入,发现如果能够连续性给予低剂量的化疗药物,可能通过有效抑制肿瘤血管生长而控制肿

1971年美国哈佛医学院Folkman教授首次大胆地提出抑制肿瘤血管新生可以抑制肿瘤组织持续生长转移的假说,随着研究的深入,发现如果能够连续性给予低剂量的化疗药物,可能通过有效抑制肿瘤血管生长而控制肿瘤。加拿大多伦多大学学者Kerbel提出了节拍化疗(metronomic chemotherapy)的概念,指采用低剂量化疗药物,即相当于常规剂量的1/10~1/3,不间断、持续性或高频率(每周1~3次)给药,以肿瘤内活化内皮细胞为治疗靶点的化疗模式。由于节拍化疗给药频繁,靶标主要是肿瘤内活化的血管内皮细胞,而不再是肿瘤细胞。 由于给药剂量降低,节拍化疗具有低化疗毒副作用、低耐药性、方便长期给药、低治疗费用等优点。口服化疗药物由于其方便服用,更适合作节拍化疗。其中,代表性的药物有长春瑞滨、甲氨蝶呤、环磷酰胺、S-1、卡培他滨。 一. 节拍化疗的作用机制 相比于传统化疗,节拍化疗为多靶点疗法,其对肿瘤细胞及其微环境发挥着直接和间接作用,这些部分之间复杂的相互作用可能提高抗肿瘤作用,并潜在诱导肿瘤休眠。节拍化疗的抗肿瘤作用机制主要体现在以下三个方面: 第一,对肿瘤的直接作用:体外模型

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    2020-08-04 phoebeyan520

    学习了

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    2020-08-03 12501267m20暂无昵称

    谢谢分享

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    2020-07-30 ms8000002066695668

    谢谢

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    2020-07-30 新斯的明

    谢谢分享

    0

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    2020-07-30 lovetcm

    #节拍化疗#总结全面

    0

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