Imaging Cancer Cells Expressing the Folate Receptor with Carbon Dots Produced from Folic Acid

ChemBioChem ◽  
2016 ◽  
Vol 17 (7) ◽  
pp. 614-619 ◽  
Author(s):  
Susanta Kumar Bhunia ◽  
Amit Ranjan Maity ◽  
Sukhendu Nandi ◽  
David Stepensky ◽  
Raz Jelinek
Keyword(s):  
Folic Acid ◽  
Cancer Cells ◽  
Carbon Dots ◽  
Folate Receptor

Folic acid-conjugated green luminescent carbon dots as a nanoprobe for identifying folate receptor-positive cancer cells

Talanta ◽  
2018 ◽  
Vol 183 ◽  
pp. 39-47 ◽  
Author(s):  
Junli Zhang ◽  
Xuewei Zhao ◽  
Ming Xian ◽  
Chuan Dong ◽  
Shaomin Shuang
Keyword(s):  
Folic Acid ◽  
Cancer Cells ◽  
Carbon Dots ◽  
Folate Receptor

scholarly journals Back Cover: Imaging Cancer Cells Expressing the Folate Receptor with Carbon Dots Produced from Folic Acid (ChemBioChem 7/2016)

ChemBioChem ◽  
2016 ◽  
Vol 17 (7) ◽  
pp. 641-641
Author(s):  
Susanta Kumar Bhunia ◽  
Amit Ranjan Maity ◽  
Sukhendu Nandi ◽  
David Stepensky ◽  
Raz Jelinek
Keyword(s):  
Folic Acid ◽  
Cancer Cells ◽  
Carbon Dots ◽  
Folate Receptor ◽  
Back Cover

scholarly journals Optimisation of Folate-Mediated Liposomal Encapsulated Arsenic Trioxide for Treating HPV-Positive Cervical Cancer Cells In Vitro

2019 ◽  
Vol 20 (9) ◽  
pp. 2156 ◽  
Author(s):  
Akhtar ◽  
Ghali ◽  
Wang ◽  
Bell ◽  
Li ◽  
...  
Keyword(s):  
Cervical Cancer ◽  
Folic Acid ◽  
Cancer Cells ◽  
Arsenic Trioxide ◽  
Folate Receptor ◽  
Hpv Infection ◽  
Cytotoxicity Studies ◽  
Cervical Cancer Cells ◽  
Infected Cells

High-risk human papilloma virus (HPV) infection is directly associated with cervical cancer development. Arsenic trioxide (ATO), despite inducing apoptosis in HPV-infected cervical cancer cells in vitro, has been compromised by toxicity and poor pharmacokinetics in clinical trials. Therefore, to improve ATO’s therapeutic profile for HPV-related cancers, this study aims to explore the effects of length of ligand spacers of folate-targeted liposomes on the efficiency of ATO delivery to HPV-infected cells. Fluorescent ATO encapsulated liposomes with folic acid (FA) conjugated to two different PEG lengths (2000 Da and 5000 Da) were synthesised, and their cellular uptake was examined for HPV-positive HeLa and KB and HPV-negative HT-3 cells using confocal microscopy, flow cytometry, and spectrophotometer readings. Cellular arsenic quantification and anti-tumour efficacy was evaluated through inductively coupled plasma-mass spectrometry (ICP-MS) and cytotoxicity studies, respectively. Results showed that liposomes with a longer folic acid-polyethylene glycol (FA-PEG) spacer (5000 Da) displayed a higher efficiency in targeting folate receptor (FR) + HPV-infected cells without increasing any inherent cytotoxicity. Targeted liposomally delivered ATO also displayed superior selectivity and efficiency in inducing higher cell apoptosis in HPV-positive cells per unit of arsenic taken up than free ATO, in contrast to HT-3. These findings may hold promise in improving the management of HPV-associated cancers.

Folate Receptor-Mediated Cancer Cell Specific Gene Delivery Using Folic Acid-Conjugated Oligochitosans

2006 ◽  
Vol 6 (9) ◽  
pp. 2860-2866 ◽  
Author(s):  
Dongwon Lee ◽  
Richard Lockey ◽  
Shyam Mohapatra
Keyword(s):  
Folic Acid ◽  
Gene Transfer ◽  
Gene Delivery ◽  
Cancer Cells ◽  
Transfection Efficiency ◽  
Folate Receptor ◽  
Weight Ratio ◽  
Specific Gene ◽  
Transfer Potential

Chitosan-mediated gene delivery has gained an increasing interest due to its ability to treat cancers and genetic diseases. However, low transfection efficiency and lack of target specificity limit its application for gene and drug delivery. In the present work, folic acid was covalently conjugated to chitosan as a targeting ligand in an attempt to specifically deliver DNA to folate receptor-overexpressing cancer cells. Folic acid-conjugated chitosan (FACN) was successfully synthesized and characterized by 1H-NMR and is biocompatible. In vitro gene transfer potential of FACN was evaluated in human epithelial ovarian cancer OV2008 cells and human breast cancer MCF-7 cells. FACN at a weight ratio of 10 : 1 exhibited significantly (< 0.01) enhanced gene transfer potential in folate receptor-overexpressing cancer cells as compared to unmodified chitosan. Transfection of FACN/pDNA nanocomplexes is competitively inhibited by free folic acid, suggesting the specific gene delivery of FACN/pDNA nanocomplexes is achieved through folate receptor-mediated endocytosis. Taken together, these results demonstrate that FACN provides a promising carrier for cancer gene therapy.

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