scholarly journals Co-delivery of gambogic acid and TRAIL plasmid by hyaluronic acid grafted PEI-PLGA nanoparticles for the treatment of triple negative breast cancer

Drug Delivery ◽  
2017 ◽  
Vol 24 (1) ◽  
pp. 1791-1800 ◽  
Author(s):  
Shengpeng Wang ◽  
Min Shao ◽  
Zhangfeng Zhong ◽  
Anqi Wang ◽  
Jiliang Cao ◽  
...  
Materials ◽  
2020 ◽  
Vol 13 (23) ◽  
pp. 5309
Author(s):  
Jamila Djafari ◽  
Javier Fernández-Lodeiro ◽  
Hugo M. Santos ◽  
Julia Lorenzo ◽  
Sergi Rodriguez-Calado ◽  
...  

Non-viral gene delivery using exogenous microRNAs is a potential strategy for fighting cancers with poor prognosis and which lack specific therapies, such as triple-negative breast cancer (TNBC). Herein we report the synthesis of six nontoxic electrostatic polymeric nanocapsules (P1 to P6) for microRNA delivery in TNBC cells. 1H Nuclear Magnetic Resonance (NMR) spectroscopy and Scanning Electron Microscopy (SEM) were used to characterize the nanopolyplexes, synthesized with Poly(L-Lysine) and hyaluronic acid (Ha). Studies on the activity of the ternary HA/PLI/miRNA-34 nanopolyplexes towards TNBC cell line MDA-MB-231 were conducted. The nanopolyplexes mediated intracellular restoration of tumor suppressor miR34a was evaluated by using Western blotting to quantify the expression level of the Bcl-2 protein. The results suggest that the P5, with a ratio PLI/Ha of 0.05, was the most promising for the delivery of miR-34a into TNBC cells; the P5 nanocapsules were able to reduce Bcl-2 expression at a protein level, and had an effect in the overall cell viability after 24 h treatment.


Biomolecules ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 436 ◽  
Author(s):  
Wenwei Han ◽  
Lili Song ◽  
Yingdi Wang ◽  
Youjing Lv ◽  
Xiangyan Chen ◽  
...  

Hyaluronic acid (hyaluronan, HA) is a critical component of the extracellular matrix and plays an important biological function of interacting with different molecules and receptors. In this study, both odd- and even-numbered HA oligosaccharides (HAOs) with specific degrees of polymerization (DP) were prepared by different hydrochloric acid hydrolyses, and their structures were characterized by means of HPLC, ESI-MS, and NMR. The data show that the odd-numbered HAOs (DP3-11) have a glucuronic acid reducing end, while the even-numbered HAOs (DP2-10) have an N-acetylglucosamine reducing end. Biological evaluations indicated that all HAOs significantly inhibited the growth and migration of triple-negative breast cancer (TNBC) MDA-MB-231 cells. Among these oligosaccharides, the HA tetrasaccharide (DP4) was confirmed to be the minimum fragment necessary to inhibit MDA-MB-231 cells. Our data suggest that HAOs have potential value in the treatment of TNBC.


2020 ◽  
Vol 8 (1) ◽  
pp. 212-223 ◽  
Author(s):  
Mangmang Sang ◽  
Lingfei Han ◽  
Renjie Luo ◽  
Wei Qu ◽  
Feng Zheng ◽  
...  

Scheme of mPEG-HA/CSO-SS-Hex/SPION/GA self-assembly preparation and the magnetism-enhanced EPR in vivo and in vitro trafficking pathways of the polymeric self-assembly.


Sign in / Sign up

Export Citation Format

Share Document