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靶向过表达 FRα 的宫颈癌细胞的 PEDF 基因递释:有前途的纳米载体

Promising Nanocarriers for PEDF Gene Targeting Delivery to Cervical Cancer Cells Mediated by the Over-expressing FRα.

机构信息

State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University, and Collaborative Innovation Center for Biotherapy, Sichuan University, Chengdu 610041, China.

College of Pharmacy, Southwest University for Nationalities, Chengdu 610041, China.

出版信息

Sci Rep. 2016 Aug 31;6:32427. doi: 10.1038/srep32427.


DOI:10.1038/srep32427
PMID:27576898
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5006243/
Abstract

Cervical cancer presents extremely low PEDF expression which is associated with tumor progression and poor prognosis. In this study, folate receptor α (FRα)-targeted nano-liposomes (FLP) were designed to enhance the anti-tumor effect by targeting delivery of exogenous PEDF gene to cervical cancer cells. The targeting molecule F-PEG-Chol was firstly synthesized by a novel simpler method. FLP encapsulating PEDF gene (FLP/PEDF) with a typical lipid-membrane structure were prepared by a film dispersion method. The transfection experiment found FLP could effectively transfect human cervical cancer cells (HeLa cells). FLP/PEDF significantly inhibited the growth of HeLa cells and human umbilical vein endothelial cells (HUVEC cells) and suppressed adhension, invasion and migration of HeLa cells in vitro. In the abdominal metastatic tumor model of cervical cancer, FLP/PEDF administered by intraperitoneal injection exhibited a superior anti-tumor effect probably due to the up-regulated PEDF. FLP/PEDF could not only sharply reduce the microvessel density but also dramatically inhibit proliferation and markedly induce apoptosis of tumor cells in vivo. Moreover, the preliminary safety investigation revealed that FLP/PEDF had no obvious toxicity. These results clearly showed that FLP were desired carriers for PEDF gene and FLP/PEDF might represent a potential novel strategy for gene therapy of cervical cancer.

摘要

宫颈癌中 PEDF 表达极低,与肿瘤进展和不良预后相关。本研究设计了叶酸受体α(FRα)靶向的纳米脂质体(FLP),通过靶向递送来增强外源性 PEDF 基因对宫颈癌的治疗效果。首先通过一种新的更简单的方法合成靶向分子 F-PEG-Chol。采用薄膜分散法制备了具有典型脂质膜结构的包载 PEDF 基因的 FLP(FLP/PEDF)。转染实验发现 FLP 能够有效地转染人宫颈癌(HeLa)细胞。FLP/PEDF 显著抑制了 HeLa 细胞和人脐静脉内皮细胞(HUVEC)的生长,并抑制了 HeLa 细胞在体外的黏附、侵袭和迁移。在宫颈癌的腹腔转移肿瘤模型中,通过腹腔注射给予的 FLP/PEDF 由于 PEDF 的上调表现出更好的抗肿瘤作用。FLP/PEDF 不仅可以显著降低微血管密度,而且可以显著抑制肿瘤细胞的增殖并诱导其凋亡。此外,初步的安全性研究表明,FLP/PEDF 没有明显的毒性。这些结果清楚地表明,FLP 是 PEDF 基因的理想载体,FLP/PEDF 可能代表了宫颈癌基因治疗的一种有潜力的新策略。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/6c30b4a26014/srep32427-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/2fa05df3e318/srep32427-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/e24b7baa3796/srep32427-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/8f031b71c0d4/srep32427-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/abf6087bd8df/srep32427-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/aa5229893542/srep32427-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/6bf5a2aa6109/srep32427-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/eb58674b1776/srep32427-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/a7cf066a46d1/srep32427-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/6c30b4a26014/srep32427-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/2fa05df3e318/srep32427-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/e24b7baa3796/srep32427-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/8f031b71c0d4/srep32427-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/abf6087bd8df/srep32427-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/aa5229893542/srep32427-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/6bf5a2aa6109/srep32427-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/eb58674b1776/srep32427-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/a7cf066a46d1/srep32427-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/0042/5006243/6c30b4a26014/srep32427-f9.jpg

相似文献

[1]
Promising Nanocarriers for PEDF Gene Targeting Delivery to Cervical Cancer Cells Mediated by the Over-expressing FRα.

Sci Rep. 2016-8-31

[2]
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[3]
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[8]
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本文引用的文献

[1]
Pigment epithelial-derived factor gene loaded novel COOH-PEG-PLGA-COOH nanoparticles promoted tumor suppression by systemic administration.

Int J Nanomedicine. 2016-2-25

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Nanoscale. 2016-2-28

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