用于有效治疗乳腺癌的叶酸受体靶向喜树碱负载型 PLGA 谷登素纳米粒子

IF 4.7 3区 工程技术 Q2 ENGINEERING, ENVIRONMENTAL
Raja Rajeswari Rajeshkumar, Theivendren Panneerselvam, Parasuraman Pavadai, Sureshbabu Ram Kumar Pandian, Alagarsamy Santhana Krishna Kumar, Murugesan Sankaranarayan, Shanmugampillai Jeyarajaguru Kabilan, Selvaraj Kunjiappan
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引用次数: 0

摘要

将天然聚合物和合成聚合物结合起来开发纳米药物具有许多优点,包括毒性低、生物相容性好、可延长循环时间、稳定性高以及易于表面修饰。本文制备了一种新型叶酸共轭喜树碱负载聚(乳酸-聚甘醇酸)-谷氨酰胺纳米粒子(FA-CPT-PLGA-Glu NPs),用于治疗乳腺癌。FA-CPT-PLGA-Glu NPs 通过上调的叶酸受体靶向乳腺癌细胞,并在不破坏健康细胞的情况下释放其毒性载荷。首先,使用改良的乳化/蒸发技术制备出了载CPT的PLGA NPs。其次,采用逐层组装法合成了基于 Glu 的 CPT-PLGA NPs,并验证了它们的理化性质。CPT 在 PLGA-Glu NPs 中的包封效率和负载能力分别为 74.95 ± 1.34% 和 4.78 ± 1.08%。CPT-PLGA-Glu NPs表现出负载CPT从NPs中的持续和可控释放,并且在酸性环境(pH 5.3)中释放的含量最高,这将有利于癌症治疗。随后,通过简单的共轭化学反应合成了FA-CPT-PLGA-Glu NPs。合成的 FA-CPT-PLGA-Glu NPs 大小约为 100 nm,呈球形,具有结晶性。FA-CPT-PLGA-Glu NPs 具有很强的细胞毒性活性,其对乳腺癌细胞株(MCF-7)的 IC50 值为 16.33 µg × mL-1。这种叶酸受体靶向 NPs 能更有效地被 MCF-7 细胞内化,导致 ROS 生成、细胞生长抑制和细胞凋亡。内化的叶酸受体靶向 NPs 能更有效地内化 MCF-7 细胞,导致 ROS 生成、细胞生长抑制和细胞凋亡。此外,内化的 CPT 会诱导线粒体跨膜的潜在损失,并破坏癌细胞核的完整性。这些结果表明,FA-CPT-PLGA-Glu NPs 可靶向 MCF-7 细胞表面上调的叶酸受体。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Folate Receptor-Targeted Camptothecin-Loaded PLGA-Glutenin Nanoparticles for Effective Breast cancer Treatment

Folate Receptor-Targeted Camptothecin-Loaded PLGA-Glutenin Nanoparticles for Effective Breast cancer Treatment

The combination of natural and synthetic polymers for nanomedicine development had many advantages, including less toxicity, biocompatibility, prolonged circulation, higher stability, and ease of surface modification. Here, a novel folic acid-conjugated Camptothecin-loaded-poly (lactic-co-glycolic) acid-glutenin nanoparticles (FA-CPT-PLGA-Glu NPs) was fabricated to treat breast cancer. FA-CPT-PLGA-Glu NPs target breast cancer cells via upregulated folate receptors and delivered their toxic payloads without disrupting healthy cells. First, CPT-loaded PLGA NPs were created using a modified emulsification/evaporation technique. Second, Glu-based CPT-PLGA NPs were synthesized using a layer-by-layer assembly, and their physiochemical properties were validated. CPT encapsulation efficiency and loading capacity into PLGA-Glu NPs were 74.95 ± 1.34% and 4.78 ± 1.08%, respectively. CPT-PLGA-Glu NPs exhibited sustained and controlled release of loaded-CPT from NPs, and the highest content was released in an acidic environment (pH 5.3), which will be advantageous for cancer treatment. Later, FA-CPT-PLGA-Glu NPs were synthesized by simple conjugation chemistry. The fabricated FA-CPT-PLGA-Glu NPs were around 100 nm in size, with a spherical form and crystalline nature. FA-CPT-PLGA-Glu NPs show strong cytotoxicity activity, and its IC50 value was 16.33 µg × mL− 1 against breast cancer cell line (MCF-7). This folate-receptor-targeted NPs are more effectively internalized into MCF-7 cells, causing ROS generation, cell growth inhibition, and apoptosis. The activity of caspase-3 and − 9 causes MCF-7 cells apoptosis by internalized CPT. Further, internalized CPT induces potential loss of mitochondrial transmembrane and damages the nuclear integrity of the cancer cells. These results showed that the FA-CPT-PLGA-Glu NPs target upregulated folate receptors on the surface of MCF-7 cells.

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来源期刊
Journal of Polymers and the Environment
Journal of Polymers and the Environment 工程技术-高分子科学
CiteScore
9.50
自引率
7.50%
发文量
297
审稿时长
9 months
期刊介绍: The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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