Merdan Orunoğlu1, Abbas Kaffashi2, Sibel Bozdağ Pehlivan3, Selma Şahin3, Figen Söylemezoğlu4, Kader Karli Oğuz5, Melike Mut6. 1. Bayburt State Hospital, Department of Neurosurgery, Bayburt, Turkey. 2. Hacettepe University, Department of Nanotechnology and Nanomedicine, Ankara, Turkey. 3. Hacettepe University, Faculty of Pharmacy, Department of Pharmaceutical Technology, Ankara, Turkey. 4. Hacettepe University, Faculty of Medicine, Department of Pathology, Ankara, Turkey. 5. Hacettepe University, Faculty of Medicine, Department of Radiology, Ankara, Turkey. 6. Hacettepe University, Faculty of Medicine, Department of Neurosurgery, Ankara, Turkey. Electronic address: melikem@hacettepe.edu.tr.
Abstract
BACKGROUND: Curcumin, the active ingredient of turmeric, has a remarkable antitumor activity against various cancers, including glioblastoma. However, it has poor absorption and low bioavailability; thus, to cross the blood-brain barrier and reach tumor tissue, it needs to be transferred to tumor site by special drug delivery systems, such as nanoparticles. OBJECTIVE: We aimed to evaluate the antitumor activity of curcumin on glioblastoma tissue in the rat glioma-2 (RG2) tumor model when it is loaded on poly(lactic-co-glycolic acid)-1,2-distearoyl-glycerol-3-phospho-ethanolamine-N-[methoxy (polyethylene glycol)-2000] ammonium salt (PLGA-DSPE-PEG) hybrid nanoparticles. METHODS: Glioblastoma was induced in 42 adult female Wistar rats (250-300g) by RG2 tumor model. The curcumin-loaded nanoparticles were injected by intravenous (n=6) or intratumoral route (n=6). There were five control groups, each containing six rats. First control group was not applied any treatment. The remaining four control groups were given empty nanoparticles or curcumin alone by intravenous or intratumoral route, respectively. The change in tumor volume was assessed by magnetic resonance imaging and histopathology before and 5days after drug injections. RESULTS: Tumor size decreased significantly after 5days of intratumoral injection of curcumin-loaded nanoparticle (from 66.6±44.6 to 34.9±21.7mm3, p=0.028), whereas it significantly increased in nontreated control group (from 33.9±21.3 to 123.7±41.1mm3, p=0.036) and did not significantly change in other groups (p>0.05 for all). CONCLUSION: In this in vivo experimental model, intratumoral administration of curcumin-loaded PLGA-DSPE-PEG hybrid nanoparticles was effective against glioblastoma. Curcumine-loaded nanoparticles may have potential application in chemotherapy of glioblastoma.
BACKGROUND:Curcumin, the active ingredient of turmeric, has a remarkable antitumor activity against various cancers, including glioblastoma. However, it has poor absorption and low bioavailability; thus, to cross the blood-brain barrier and reach tumor tissue, it needs to be transferred to tumor site by special drug delivery systems, such as nanoparticles. OBJECTIVE: We aimed to evaluate the antitumor activity of curcumin on glioblastoma tissue in the ratglioma-2 (RG2) tumor model when it is loaded on poly(lactic-co-glycolic acid)-1,2-distearoyl-glycerol-3-phospho-ethanolamine-N-[methoxy (polyethylene glycol)-2000] ammonium salt (PLGA-DSPE-PEG) hybrid nanoparticles. METHODS:Glioblastoma was induced in 42 adult female Wistar rats (250-300g) by RG2 tumor model. The curcumin-loaded nanoparticles were injected by intravenous (n=6) or intratumoral route (n=6). There were five control groups, each containing six rats. First control group was not applied any treatment. The remaining four control groups were given empty nanoparticles or curcumin alone by intravenous or intratumoral route, respectively. The change in tumor volume was assessed by magnetic resonance imaging and histopathology before and 5days after drug injections. RESULTS:Tumor size decreased significantly after 5days of intratumoral injection of curcumin-loaded nanoparticle (from 66.6±44.6 to 34.9±21.7mm3, p=0.028), whereas it significantly increased in nontreated control group (from 33.9±21.3 to 123.7±41.1mm3, p=0.036) and did not significantly change in other groups (p>0.05 for all). CONCLUSION: In this in vivo experimental model, intratumoral administration of curcumin-loaded PLGA-DSPE-PEG hybrid nanoparticles was effective against glioblastoma. Curcumine-loaded nanoparticles may have potential application in chemotherapy of glioblastoma.
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