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Abstract Title:

Efficacy of liposomal curcumin in a human pancreatic tumor xenograft model: inhibition of tumor growth and angiogenesis.

Abstract Source:

Anticancer Res. 2013 Sep ;33(9):3603-9. PMID: 24023285

Abstract Author(s):

Amalendu P Ranjan, Anindita Mukerjee, Lawrence Helson, Rohan Gupta, Jamboor K Vishwanatha

Article Affiliation:

Department of Molecular Biology and Immunology, and Institute for Cancer Research, Graduate School of Biomedical Sciences, University of North Texas Health Science Center, Fort Worth, Texas, 76107, USA. Jamboor.vishwanatha@unthsc.edu.

Abstract:

BACKGROUND: Liposome-based drug delivery has been successful in the past decade, with some formulations being Food and Drug Administration (FDA)-approved and others in clinical trials around the world. The major disadvantage associated with curcumin, a potent anticancer agent, is its poor aqueous solubility and hence low systemic bioavailability. However, curcumin can be encapsulated into liposomes to improve systemic bioavailability.

MATERIALS AND METHODS: We determined the antitumor effects of a liposomal curcumin formulation against human MiaPaCa pancreatic cancer cells both in vitro and in xenograft studies. Histological sections were isolated from murine xenografts and immunohistochemistry was performed.

RESULTS: The in vitro (IC50) liposomal curcumin proliferation-inhibiting concentration was 17.5μM. In xenograft tumors in nude mice, liposomal curcumin at 20 mg/kg i.p. three-times a week for four weeks induced 42% suppression of tumor growth compared to untreated controls. A potent antiangiogenic effect characterized by a reduced number of blood vessels and reduced expression of vascular endothelial growth factor and annexin A2 proteins, as determined by immunohistochemistry was observed in treated tumors.

CONCLUSION: These data clearly establish the efficacy of liposomal curcumin in reducing human pancreatic cancer growth in the examined model. The therapeutic curcumin-based effects, with no limiting side-effects, suggest that liposomal curcumin may be beneficial in patients with pancreatic cancer.

Study Type : Animal Study, In Vitro Study

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Sayer Ji
Founder of GreenMedInfo.com

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