title: Inhibition of metastasis and growth of breast cancer by pH-sensitive poly (β-amino ester) nanoparticles co-delivering two siRNA and paclitaxel.
abstract: Breast cancer is the most vicious killer for women's health, while metastasis is the main culprit, which leads to failure of treatment by increasing relapse rate. In this work, a new complexes nanoparticles loading two siRNA (Snail siRNA (siSna) and Twist siRNA (siTwi)) and paclitaxel (PTX) were designed and constructed using two new amphiphilic polymer, polyethyleneimine-block-poly[(1,4-butanediol)-diacrylate-β-5-hydroxyamylamine] (PEI-PDHA) and polyethylene glycol-block-poly[(1,4-butanediol)-diacrylate-β-5-hydroxyamylamine] (PEG-PDHA) by self-assembly. The experimental results showed that in the 4T1 tumor-bearing mice models, PEI-PDHA/PEG-PDHA/PTX/siSna/siTwi) complex nanoparticles (PPSTs) raised the accumulation and retention of both PTX and siRNA in tumor after administrated intravenously, resulted in the strong inhibition of the tumor growth and metastasis simultaneously. It was found that co-delivery of siSna and siTwi had more significant anti-metastasis effect than delivering a single siRNA, as a result of simultaneously inhibiting the motility of cancer cells and degradation of ECM. Therefore, PPSTs could be a promising co-delivery vector for effective therapy of metastatic breast cancer.
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Shan
authors.initials: S
authors.lastname: Tang
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China. Electronic address: yinqi0607@126.com.
authors.forename: Qi
authors.initials: Q
authors.lastname: Yin
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Jinghan
authors.initials: J
authors.lastname: Su
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Huiping
authors.initials: H
authors.lastname: Sun
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Qingshuo
authors.initials: Q
authors.lastname: Meng
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Lingli
authors.initials: L
authors.lastname: Chen
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Yongzhuo
authors.initials: Y
authors.lastname: Huang
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Wangwen
authors.initials: W
authors.lastname: Gu
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Minghua
authors.initials: M
authors.lastname: Xu
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Haijun
authors.initials: H
authors.lastname: Yu
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China.
authors.forename: Zhiwen
authors.initials: Z
authors.lastname: Zhang
authors.affiliation: State Key Laboratory of Drug Research & Center of Pharmaceutics, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, 501 Haike Road, Shanghai 201203, China. Electronic address: ypli@simm.ac.cn.
authors.forename: Yaping
authors.initials: Y
authors.lastname: Li
mesh_terms: D000818:Animals; D000972:Antineoplastic Agents, Phytogenic / Q000494:pharmacology*; D001943:Breast Neoplasms / Q000473:pathology*; D049109:Cell Proliferation / Q000187:drug effects*; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D051379:Mice; D053758:Nanoparticles; D009362:Neoplasm Metastasis / Q000517:prevention & control*; D017239:Paclitaxel / Q000494:pharmacology*; D011091:Polyesters / Q000008:administration & dosage*; D034741:RNA, Small Interfering / Q000008:administration & dosage*; D023041:Xenograft Model Antitumor Assays
chemical_list: D000972:Antineoplastic Agents, Phytogenic; D011091:Polyesters; D034741:RNA, Small Interfering; D017239:Paclitaxel
keywords: Co-delivery; Metastasis; Paclitaxel; Poly (β-amino ester); RNA interference; pH-sensitive