Devising new lipid-coated calcium phosphate/carbonate hybrid nanoparticles for controlled release in endosomes for efficient gene delivery

2017 ◽  
Vol 5 (34) ◽  
pp. 7194-7203 ◽  
Author(s):  
Yilun Wu ◽  
Wenyi Gu ◽  
Jie Tang ◽  
Zhi Ping Xu

New hybrid nanoparticles can efficiently deliver dsDNA/siRNA to cancer cells, with the gene release precisely controlled in the endosomal pH range.

Author(s):  
Yao-Hua Liu ◽  
Yu Liu

Nucleic acids condensation and controlled release remain significant challenges of gene therapy in chemical biology and nanotechnology fields. In this work, we have reported a polysaccharide supramolecular assembly constructed by...


2015 ◽  
Vol 3 (33) ◽  
pp. 6805-6812 ◽  
Author(s):  
Jie Tang ◽  
Li Li ◽  
Christopher B. Howard ◽  
Stephen M. Mahler ◽  
Leaf Huang ◽  
...  

The optimized lipid coated calcium phosphate nanoparticles more efficiently deliver functional siRNA and inhibit the cancer cell growth, in comparison with the commercial transfection agent OligofactamineTM.


2004 ◽  
Vol 12 (1) ◽  
pp. 11-18 ◽  
Author(s):  
Mohsen M. Mady ◽  
M.M. Ghannam ◽  
W.A. Khalil ◽  
R. Repp ◽  
M. Markus ◽  
...  

Pharmaceutics ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 468 ◽  
Author(s):  
Zhao ◽  
Li ◽  
Chen ◽  
Hu

Calcium phosphate (CaP) nanoparticles, as a promising vehicle for gene delivery, have been widely used owing to their biocompatibility, biodegradability and adsorptive capacity for nucleic acids. Unfortunately, their utility in vivo has been profoundly restricted due to numerous technical barriers such as the lack of tissue specificity and limited transfection efficiency, as well as uncontrollable aggregation over time. To address these issues, an effective conjugate folate-polyethylene glycol-pamidronate (shortened as FA-PEG-Pam) was designed and coated on the surface of CaP/NLS/pDNA (CaP/NDs), forming a versatile gene carrier FA-PEG-Pam/CaP/NDs. Inclusion of FA-PEG-Pam significantly reduced the size of CaP nanoparticles, thus inhibiting the aggregation of CaP nanoparticles. FA-PEG-Pam/CaP/NDs showed better cellular uptake than mPEG-Pam/CaP/NDs, which could be attributed to the high-affinity interactions between FA and highly expressed FR. Meanwhile, FA-PEG-Pam/CaP/NDs had low cytotoxicity and desired effect on inducing apoptosis (71.1%). Furthermore, FA-PEG-Pam/CaP/NDs showed admirable transfection efficiency (63.5%) due to the presence of NLS peptides. What’s more, in vivo studies revealed that the hybrid nanoparticles had supreme antitumor activity (IR% = 58.7%) among the whole preparations. Altogether, FA-PEG-Pam/CaP/NDs was expected to be a hopeful strategy for gene delivery.


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