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Abstract Title:

Tomatidine inhibits cell invasion through the negative modulation of gelatinase and inactivation of p38 and ERK.

Abstract Source:

Chem Biol Interact. 2019 Nov 1 ;313:108826. Epub 2019 Sep 20. PMID: 31545954

Abstract Author(s):

Sojeong Jeon, Moon-Moo Kim

Article Affiliation:

Sojeong Jeon

Abstract:

BACKGROUND: Despite of the most effective surgical removal of malignant tumors, metastasis makes cancer treatment difficult. The studies on natural compounds to inhibit this metastasis have been actively performed until now. However, the effect of tomatidine on metastasis remains unclear.

METHOD: The effect of tomatidine on antioxidative activity was measured with DPPH radical assay and reducing power assay. After treatment with tomatidine, the viability of human fibrosarcoma cells (HT1080 cells) was evaluated with MTT assay. The effect of tomatidine on the inhibition of matrix metalloproteinase-2 (MMP-2) and MMP-9, gelatinases related to metastasis, was analyzed using gelatin zymography, western blot and immunofluorescence staining. Cell invasion assay was used to investigate anti-metastasis activity of tomatidine.

RESULT: Tomatidine showed no DPPH radical scavenging effect and showed 8% of reduction power at 8 μM. Furthermore, tomatidine below 8 μM showed more than 80% of cell viability in MTT assay. The inhibition of tomatidine on MMP-2 activity and its protein expression levels were observed by gelatin zymography, western blot and immunofluorescence. It was observed that tomatidine inhibited notonly p38 and ERK but also cell invasion.

CONCLUSION: Above results suggest that tomatidine could use as a potential candidate for cancer prevention and metastasis through the inhibitory effect on gelatinase.

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