John Garner

mPEG-PLA and PLA-PEG-COOH from PolySciTech used in the development of nanoparticles to treat colon cancer

Blog Post created by John Garner on Nov 6, 2018

Maryam cancer polyscitech galbanic.jpg

Galbanic acid is a naturally occurring compound extracted from Ferula (wild carrots) which has potent activity against cancer, as well as anticoagulative, antiviral, and antibacterial properties. Despite its promising biological activity, it has very poor water solubility, which limits its clinical usefulness. Recently, researchers at Mashhad University of Medical Sciences (Iran) used mPEG-PLA (Cat# AK054) and PLA-PEG-COOH (Cat# AI030) from PolySciTech ( to create galbanic-acid loaded nanoparticles. They assayed these particles against colorectal cancer and found promising results for efficacy against this form of cancer. This research holds promise for improved therapy against cancer with lower side-effects. Read more: Afsharzadeh, Maryam, Khalil Abnous, Rezvan Yazdian–Robati, Armin Ataranzadeh, Mohammad Ramezani, and Maryam Hashemi. "Formulation and evaluation of anticancer and antiangiogenesis efficiency of PLA–PEG nanoparticles loaded with galbanic acid in C26 colon carcinoma, in vitro and in vivo." Journal of cellular physiology (2018).


“Abstract: Galbanic acid (GBA) is an active sesquiterpene coumarin derivative, with various medicinal benefits, including anticancer properties. However, the low solubility of GBA is the main limitation of its clinical applications. In this study, we used a nanosystem based on poly (D, l‐lactide)–polyethylene glycol (PLA–PEG), for the delivery of GBA to C26 colon carcinoma cells. The physicochemical characteristics of nanoparticles (NPs) prepared by the emulsification–evaporation method were evaluated. MTT assay was used to compare the anticell proliferation of GBA and PLA–PEG–GBA against C26 cell lines. PLA–PEG‐NPs with an average size of about 140 nm had an enhanced release of GBA at a pH of 5.5 compared with a pH of 7.4. Cytotoxicity studies showed that the IC 50 of the PLA–PEG–GBA NPs (8 µM) was significantly lower than free GBA (15 µM). In the in vivo study, PLA–PEG–GBA NPs exhibited remarkable efficacy and reduced in vivo toxicity in C26 colon carcinoma tumor‐bearing female BALB/c mice. To study the antiangiogenesis effect of the NPs, tumor sections were stained with an anti CD34 antibody. The results show the CD34 vessels were decreased in the GBA and PLA–PEG–GBA treated mice by more than 75% and 90%, respectively. These results suggest that the encapsulation of GBA into the PLA–PEG could potentially be used for the treatment of colorectal cancer.”