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光可以内化HeLa细胞并杀死耐多药临床细菌分离物

Daniel Castellar-Almonacid¹, Kelin Johana Cuero-Amu², Jose David Mendoza-Mendoza²

¹Departamento de Farmacia, Facultad de Ciencias, Universidad Nacional de Colombia-Sede Bogotá, Carrera 45 No 26-85, Building 451, Bogotá D.C. 111321, Colombia.

Antibiotics (Basel, Switzerland)

|August 28, 2025

概括

用标记的巴林德罗姆抗菌 (PAM) 对各种癌细胞和细菌菌株具有强烈的抗癌活性. 这些新结合物对于了解抗癌机制和开发向癌症疗法具有价值.

科学领域:

医学化学
抗菌
癌症治疗方法

背景情况:

帕林德罗姆抗菌 (PAM) 是开发抗癌药物的多功能支架.
标记允许跟踪和研究生物系统中的行为.
了解新型抗癌药物的作用机制对于治疗开发至关重要.

研究的目的:

来自RWQWRWQWR序列的标记型的合成和表征.
评估这些新型联体的抗菌和抗癌活性.
研究细胞内化在这些的作用机制中的作用.

主要方法:

使用光探针 (2-Aminobenzoyl,5(6) -Carboxyfluorescein,Rhodamine B) 合成有标记的.
使用RP-HPLC分析的纯度和同位素的存在.
对细菌菌株的最小抑制度 (MIC) 的确定.
使用IC50值对癌细胞系 (HeLa,MCF-7) 的细胞毒性影响的评估.
形态分析以确定由亡诱导的细胞死亡.

主要成果:

含有标记的,特别是含有罗达胺B的,对包括耐药菌株在内的格兰阳性和格兰阴性细菌具有不同的抗菌活性.
一些用标记的对HeLa和MCF-7癌细胞表现出显著的度依赖性细胞毒性,诱导细胞亡.
罗达胺标记的具有与未标记的类似物相比较的细胞毒性,这表明细胞内化是一个关键步骤.
在一些依赖于序的罗达胺B结合中观察到异构体的形成.

结论:

含标记的是有效的抗菌和抗癌药物.
细胞内化对于这些的细胞毒性机制显得至关重要,主要诱导亡.
这些发现支持功能化PAM用于向癌症治疗和药物输送系统的潜力.

关键词:

没有.一个SPPS 细胞质局部化内部化基于的治疗罗达的标签

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