Enzyme-Responsive Cell-Penetrating Peptide Conjugated Mesoporous Silica Quantum Dot Nanocarriers for Controlled Release of Nucleus-Targeted Drug Molecules and Real-Time Intracellular Fluorescence Imaging of Tumor Cells

2014 ◽  
Vol 3 (8) ◽  
pp. 1230-1239 ◽  
Author(s):  
Jinming Li ◽  
Fang Liu ◽  
Qing Shao ◽  
Yuanzeng Min ◽  
Marianne Costa ◽  
...  
Keyword(s):  
Controlled Release ◽  
Quantum Dot ◽  
Mesoporous Silica ◽  
Tumor Cells ◽  
Cell Penetrating Peptide ◽  
Drug Molecules ◽  
Cell Penetrating ◽  
Targeted Drug ◽  
Intracellular Fluorescence ◽  
Responsive Cell

scholarly journals Stimuli-Sensitive Cell Penetrating Peptide-Modified Nanocarriers

Processes ◽  
2019 ◽  
Vol 7 (10) ◽  
pp. 727 ◽  
Author(s):  
Perche
Keyword(s):  
Therapeutic Index ◽  
Cell Penetrating Peptides ◽  
Cell Penetrating Peptide ◽  
Cellular Internalization ◽  
Normal Tissues ◽  
Formidable Challenge ◽  
Cell Penetrating ◽  
Stimuli Sensitive ◽  
Responsive Cell

The integration of drugs into nanocarriers favorably altered their pharmacodynamics and pharmacokinetics compared to free drugs, and increased their therapeutic index. However, selective cellular internalization in diseased tissues rather than normal tissues still presents a formidable challenge. In this chapter I will cover solutions involving environment-responsive cell-penetrating peptides (CPPs). I will discuss properties of CPPs as universal cellular uptake enhancers, and the modifications imparted to CPP-modified nanocarriers to confine CPP activation to diseased tissues.

scholarly journals Pharmacodynamics of siRNARANKL and Oestrogen Loaded MSNs-CADY on Human Periodontal Ligament Stem Cells with Porphyromonas gingivalis infection

2020 ◽  
Author(s):  
Liang Song ◽  
Xiaojun Shi ◽  
Fengling Hu ◽  
Huijuan Chen ◽  
Bin Xu ◽  
...  
Keyword(s):  
Stem Cells ◽  
Cell Proliferation ◽  
Drug Release ◽  
Mesoporous Silica ◽  
Porphyromonas Gingivalis ◽  
Periodontal Ligament ◽  
Mesoporous Silica Nanoparticles ◽  
Cell Penetrating Peptide ◽  
Periodontal Ligament Stem Cells ◽  
Cell Penetrating

Abstract Background: Periodontitis irreversibly invades and destroys periodontal supporting tissues, loses the ability of periodontal regeneration and restoration, and eventually leads to tooth loosening and loss. periodontal ligament stem cells (PDLSCs) hold great promises for periodontal tissue regeneration which was the potential target of periodontitis treatment, siRNARANKL and oestrogen can help PDLSCs maintain normal function, however, it was very difficult for siRNARANKL and oestrogen to get into PDLSCs. Here, Cell penetrating peptide CADY was modified on the surface of siRNARANKL and oestrogen loaded mesoporous silica nanoparticles (MSNs) to carry them into Porphyromonas gingivalis infected PDLSCs, Then further affect the proliferation of PDLSCs. Methods: 120-150 nm Mesoporous silica nanoparticles (MSNs) was prepared, and the biocompatibility, loading capacity and drug release properity were tested; MSNs was modified by penetrating peptide CADY and the prepared MSNs/CADY was loaded with siRNARANKL and oestrogen; In vitro drug release of siRNARANKL/MSNs-CADY and oestrogen/MSNs-CADY was tested by using semi-permeable dialysis bag diffusion; Cellular uptake and internalization of FITC-Labeled MSNs and FITC-Labeled MSNs-CADY was observed by use of Laser confocal microscopy; Finally, the effect of siRNARANKL and oestrogen loaded MSNs-CADY on cell proliferation of Porphyromonas gingivalis infected human periodontal ligament stem cells was tested by MTT assay. Results: according to the results, MSNs-CADY with a concentration of 6.25-200 ug/mL have no toxic to PDLSCs; 24.6 mg oestrogen and 0.5 mM siRNARANKL can be loaded into 1mg of MSNs-CADY; and drug loaded MSNs-CADY nanodrug carriers can release siRNARANKL and oestrogen stably for at least 48 h; After modification with cell penetrating peptide CADY, more MSNs-CADY can be taken by PDLSCs. siRNARANKL/oestrogen/MSNs-CADY can increase the proliferation of PDLSCs significantly. Conclusion: siRNARANKL/oestrogen/MSNs-CADY constructed can significantly improve the cell proliferation of P-gingivalis infected PDLSCs, this nano drug carrier has the potential to be used in PDLSCs -based periodontitis treatment, this work provided a useful theoretical basis and therapeutic ideas for the treatment of periodontitis.

Design of a new pH‐activatable cell‐penetrating peptide for drug delivery into tumor cells

2019 ◽  
Vol 94 (5) ◽  
pp. 1884-1893 ◽  
Author(s):  
Yun Zhang ◽  
Li Li ◽  
Linlin Chang ◽  
Hui Liu ◽  
Jingjing Song ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Tumor Cells ◽  
Cell Penetrating Peptide ◽  
Cell Penetrating

Preparation and characterization of photo-responsive cell-penetrating peptide-mediated nanostructured lipid carrier

2014 ◽  
Vol 22 (10) ◽  
pp. 891-900 ◽  
Author(s):  
Yang Yang ◽  
YanFang Yang ◽  
XiangYang Xie ◽  
XingShi Cai ◽  
XingGuo Mei
Keyword(s):  
Cell Penetrating Peptide ◽  
Nanostructured Lipid Carrier ◽  
Cell Penetrating ◽  
Responsive Cell
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