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Title: Mangiferin, a novel nuclear factor kappa B-inducing kinase inhibitor, suppresses metastasis and tumor growth in a mouse metastatic melanoma model

Journal Article · · Toxicology and Applied Pharmacology
; ; ; ; ;  [1];  [2];  [3]; ;  [4];  [5];  [6];  [1]
  1. Division of Pharmacotherapy, Kinki University School of Pharmacy, Kowakae, Higashi-, Osaka (Japan)
  2. Department of Food Science and Nutrition, Kinki University School of Agriculture, Nara, Nara (Japan)
  3. Department of Surgery, Kinki University School of Medicine, Osakasayama, Osaka (Japan)
  4. Laboratory of Pharmaceutical Organic Chemistry, School of Pharmacy, Kinki University, Kowakae, Higashi-, Osaka (Japan)
  5. Department of Natural Drugs Resources, Kinki University School of Pharmacy, Kowakae, Higashi-, Osaka (Japan)
  6. Department of Pathology, Kinki University School of Medicine, Osakasayama, Osaka (Japan)

Advanced metastatic melanoma, one of the most aggressive malignancies, is currently without reliable therapy. Therefore, new therapies are urgently needed. Mangiferin is a naturally occurring glucosylxanthone and exerts many beneficial biological activities. However, the effect of mangiferin on metastasis and tumor growth of metastatic melanoma remains unclear. In this study, we evaluated the effect of mangiferin on metastasis and tumor growth in a mouse metastatic melanoma model. We found that mangiferin inhibited spontaneous metastasis and tumor growth. Furthermore, mangiferin suppressed the nuclear translocation of nuclear factor kappa B (NF-κB) and expression of phosphorylated NF-κB-inducing kinase (NIK), inhibitor of kappa B kinase (IKK), and inhibitor of kappa B (IκB) and increases the expression of IκB protein in vivo. In addition, we found that mangiferin inhibited the expression of matrix metalloproteinases (MMPs) and very late antigens (VLAs) in vivo. Mangiferin treatment also increased the expression of cleaved caspase-3, cleaved Poly ADP ribose polymerase-1 (PARP-1), p53 upregulated modulator of apoptosis (PUMA), p53, and phosphorylated p53 proteins, and decreased the expression of Survivin and Bcl-associated X (Bcl-xL) proteins in vivo. These results indicate that mangiferin selectivity suppresses the NF-κB pathway via inhibition of NIK activation, thereby inhibiting metastasis and tumor growth. Importantly, the number of reported NIK selective inhibitors is limited. Taken together, our data suggest that mangiferin may be a potential therapeutic agent with a new mechanism of targeting NIK for the treatment of metastatic melanoma. - Highlights: • Mangiferin prolongs survival in mice by inhibiting metastasis and tumor growth • Mangiferin selectivity suppresses the NF-κB pathway via inhibition of NIK activation • Mangiferin regulates the expression of MMPs, VLAs, and apoptosis regulatory proteins.

OSTI ID:
22689257
Journal Information:
Toxicology and Applied Pharmacology, Vol. 306; Other Information: Copyright (c) 2016 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 0041-008X
Country of Publication:
United States
Language:
English