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一种新型,高效的胺基抗癌药物的脂体配方

Sofia Teixeira^1,2, Débora Ferreira^3,4, Ana Rita O Rodrigues²

¹Chemistry Centre of University of Minho (CQ-UM), Campus de Gualtar, 4710-057 Braga, Portugal.

Pharmaceuticals (Basel, Switzerland)

|August 28, 2025

概括

一种新型的pyrimido[5,4-d]pyrimidine (PP) 抗癌化合物被合成并封装成脂质体. 这种含有PP的脂质体配方对结直肠癌和三阴性乳腺癌细胞具有强烈的抗癌活性,并提高了安全性.

科学领域:

纳米技术和药物交付
瘤和癌症治疗
药物化学和药物合成

背景情况:

癌症仍然是全球死亡的主要原因,目前的治疗方法面临药物耐药性和严重副作用的挑战.
皮里米多[5,4-d]皮里米丁 (PP) 化合物对结直肠癌和三阴性乳腺癌具有有前途的抗癌潜力,但溶解性和安全性不佳.
开发有效的药物输送系统对于提高新型抗癌药物的治疗指数至关重要.

研究的目的:

通过改进的方法合成pyrimido[5,4-d]pyrimidine (PP) 化合物.
将PP封装为使用酸丁胆 (PC) 的脂肪体配方.
描述脂质体配方并评估它们的生物疗效和安全性.

主要方法:

实现了 PP 化合物的有效合成.
PP被纳入各种脂肪体配方,其特点是动态光散射 (DLS) 尺寸,多分散性和泽塔潜力.
对结直肠癌 (HCT 116),三阴性乳腺癌 (MDA- MB-231) 和正常 (BJ- 5ta) 细胞系进行了细胞毒性评估.

主要成果:

用PP装载的脂质体成功制备,尺寸小于150nm,多分散性低,存储稳定性好.
对PP化合物观察到高封装效率和持续释放特征.
与免费PP或其他配方相比,PP- EggPC- Chol- L配方表现出强大的抗癌活性 (IC50值:HCT 116的2. 04μM,MDA- MB-231的5. 24μM),对正常BJ-5ta细胞的毒性显著降低.

结论:

脂质体配方PP-EggPC-Chol-L,包括70%的卵黄酸胆 (EggPC) 和30%的胆固醇 (Chol),是一种非常有前途的PP纳米输送系统.
这种配方有效地向癌细胞,同时表现出良好的安全性,表明其潜在的进一步临床前发展.
通过脂质体改善溶解度和向输送,克服了自由PP的局限性,为先进的癌症治疗铺平了道路.

关键词:

抗癌活性大肠直肠癌脂肪体皮里米多[5,4-d]皮里米丁三重阴性乳腺癌

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