脱细胞化细胞外矩阵基调3D水凝:开发一个多克索鲁比独立的3D乳腺癌微生理化学抵抗模型的替代方法
Mohammed Shabib1, Mamta Kumari2, Ujjwal Gupta2
1Department of Pharmacology and Toxicology, National Institute of Pharmaceutical Education and Research, Kolkata, West Bengal 700054, India.
ACS applied bio materials
|February 12, 2026
概括
这项研究从脱细胞化的猪肉阿基里斯肌中设计了一个3D水凝,以模仿乳腺癌细胞外矩阵刚度. 这种生物材料模型成功诱导了乳腺癌细胞中的化学抵抗,为矩阵驱动的耐药性提供了新的见解.
科学领域:
- 生物材料科学 生物材料科学
- 癌症生物学 癌症生物学
- 生物技术是生物技术.
背景情况:
- 乳腺癌是全球主要的死亡原因,治疗因瘤微环境因素 (如细胞外基质 (ECM) 硬) 而复杂.
- 瘤ECM刚度明显高于健康组织,影响癌细胞行为并促进化学抵抗.
- 目前的3D模型难以复制乳腺癌ECM的复杂生物力学,阻碍了对矩阵驱动治疗耐药性的研究.
研究的目的:
- 开发一个3D水凝模型,准确地复制乳腺癌ECM硬性和生物力学.
- 调查矩阵刚度在推动乳腺癌细胞化学抵抗中的机械作用.
- 探索创建独立于药物暴露的体外化学抵抗模型的可能性.
主要方法:
- 使用表面活性剂和酶去细胞化猪肉阿基里斯肌,以保持ECM结构和生物力学.
- 从脱细胞化ECM粉末制造一个光交联的3D水凝,具有可调节的交联和rheology.
- 通过在变硬度水凝中培养MDA-MB-231细胞并评估CD44+/CD24-癌症干细胞表型,评估耐药性.
主要成果:
- 脱细胞化ECM成功地被加工成具有受控机械性能的3D水凝.
- 在更硬的水凝中培养的乳腺癌细胞表现出与化学抵抗性和攻击性相关的表型.
- 该研究表明,仅仅矩阵刚性就能在体外诱导一种耐化学反应的表型.
结论:
- 成功开发了一种模仿乳腺癌ECM刚性的新型3D水凝模型.
- 矩阵生物力学,特别是刚性,在机械调节乳腺癌治疗阻力方面发挥着至关重要的作用.
- 该模型为研究矩阵驱动的化学抵抗和开发新的治疗策略提供了一个平台.
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