Cyclodextrin-covered gold nanoparticles for targeted delivery of an anti-cancer drug

2009 ◽  
Vol 19 (16) ◽  
pp. 2310 ◽  
Author(s):  
Chiyoung Park ◽  
Hyewon Youn ◽  
Hana Kim ◽  
Taiho Noh ◽  
Yeon Hee Kook ◽  
...  
2009 ◽  
Vol 56 (4) ◽  
pp. 703-708 ◽  
Author(s):  
Ching-Ming Wu ◽  
Ping-Ching Wu ◽  
Yun-Han Wang ◽  
Tsung-Ju Li ◽  
Li-Xing Yang ◽  
...  

Author(s):  
Wenxing Song ◽  
Xing Su ◽  
David Gregory ◽  
Wei Li ◽  
Zhiqiang Cai ◽  
...  

Curcumin is a promising anti-cancer drug but its applications in cancer therapy are limited due to its poor solubility, short half-life and low bioavailability. In this study, curcumin loaded magnetic alginate / chitosan nanoparticles were fabricated to improve the bioavailability, uptake efficiency and cytotoxicity of curcumin to MDA-MB-231 breast cancer cells. Alginate and chitosan were deposited on Fe3O4 magnetic nanoparticles based on their electrostatic properties. The sizes of the nanoparticles (120-200 nm) were within the optimum range for drug delivery. Sustained curcumin release was obtained use the nanoparticles with the ability to control the curcumin release rate by altering the number of chitosan and alginate layers. Confocal fluorescence microscopy results showed that targeted delivery of curcumin with the aid of magnetic field were achieved. The FACS assay indicated that MDA-MB-231 cells treated with curcumin loaded nanoparticles had a 3-6 folds uptake efficiency to those treated with free curcumin. MTT assay indicated that the curcumin loaded nanoparticles exhibited significantly higher cytotoxicity toward MDA-MB-231 cells than toward HDF cells. The sustained release profiles, enhanced uptake efficiency and cytotoxicity to cancer cells as well as the targeting potential make MACPs a promising candidate for cancer therapy.


2021 ◽  
Author(s):  
Celina Yang

Gold nanoparticles (GNPs) have been extensively used in cancer research due to their abilities as anti-cancer drug carriers for chemotherapy and as dose enhancers in radiotherapy. Although most GNP research in the past involved cytoplasm localized GNPs, it is predicted that therapy response can be enhanced if GNPs can be effectively targeted into the nucleus. A strategy for designing a GNP-peptide complex for targeting the nucleus will be presented. Three different sequences of peptides (CKKKKKKGGAGDMFG, CGGRKKRRGRRRAP, CALNN) were conjugated onto GNPs. The first peptide was used to stabilize the complex, the second peptide to enhance uptake into the cell, while the third peptide was used to induce nuclear delivery. With nuclear targeting, more damage can be caused to the DNP of cancer cells upon irradiation. This research will establish a more successful NP-based platform that combines treatment modalities and more effectively approach cancer treatment.


2020 ◽  
Vol 7 (8) ◽  
pp. 1996-2010 ◽  
Author(s):  
Stephanie J. Franks ◽  
Kate Firipis ◽  
Rita Ferreira ◽  
Katherine M. Hannan ◽  
Richard J. Williams ◽  
...  

Self-assembling peptide hydrogels can effectively transport, hold and release therapeutic molecules in a spatially and temporally controlled manner and, in doing so, improve anti-cancer drug efficacy while reducing non-specific toxicity.


2021 ◽  
Author(s):  
Celina Yang

Gold nanoparticles (GNPs) have been extensively used in cancer research due to their abilities as anti-cancer drug carriers for chemotherapy and as dose enhancers in radiotherapy. Although most GNP research in the past involved cytoplasm localized GNPs, it is predicted that therapy response can be enhanced if GNPs can be effectively targeted into the nucleus. A strategy for designing a GNP-peptide complex for targeting the nucleus will be presented. Three different sequences of peptides (CKKKKKKGGAGDMFG, CGGRKKRRGRRRAP, CALNN) were conjugated onto GNPs. The first peptide was used to stabilize the complex, the second peptide to enhance uptake into the cell, while the third peptide was used to induce nuclear delivery. With nuclear targeting, more damage can be caused to the DNP of cancer cells upon irradiation. This research will establish a more successful NP-based platform that combines treatment modalities and more effectively approach cancer treatment.


Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7436-7442 ◽  
Author(s):  
Alfonso Latorre ◽  
Christian Posch ◽  
Yolanda Garcimartín ◽  
Anna Celli ◽  
Martina Sanlorenzo ◽  
...  

Aptamer modified gold nanoparticles target malignant cells. Anti-cancer therapeutics are released after cleavage of a self-immolative linker by intracellular triggers.


2020 ◽  
Vol 20 (2) ◽  
pp. 815-821
Author(s):  
Mingmei Li

Background and Objective: Chemotherapy is one of the important medical option for the cancer therapy, but still new combination of therapeutic treatment methods are needed to achieve efficient anti tumor activity. In this work, Pueraria lobata leaf extract was utilized as a bio reductant for the fabrication of the Gold nanoparticles (Au-NPs) by an ecological approach without using any harmful chemical. This work also evaluates whether the combined effect of chemotherapy along with Au-NPs and Ultrasound (US) is effective over the tumors or not. Materials and methods: About 10 mL of plant extract was added to 1mM of HAuCl4 solution (20.0 mL) and pH was maintained at 12 and allowed for stirring for half an hour. The change in solution color from yellow to purple signified the Au-NPs formation. Results: XRD results and TEM images confirmed the formation of crystalline Au-NPs with sizes ranging from 23-30 nm. Further, biological studies revealed that the combination of Au-NPs and US along with chemotherapy improved the impact of anti-cancer drug. Conclusion: In conclusion, Pueraria lobata leaf extract mediated synthesis of Au-NPs by an eco-friendly approach was reported in this work. The plant biomolecules of the extract were involved in the reduction and capping of the Au-NPs formed. The major conclusion is that addition of Au-NPs with chemotherapy and ultrasound has shown more effective anti-tumor activity. Keywords: Au-NPs; chemotherapy; ultrasound; plant bio-constituents.


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