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Fruit peel polyphenols demonstrate substantial anti-tumour effects in the model of breast cancer
P. Kubatka, A. Kapinová, M. Kello, P. Kruzliak, K. Kajo, D. Výbohová, S. Mahmood, R. Murin, T. Viera, J. Mojžiš, A. Zulli, M. Péč, M. Adamkov, M. Kassayová, B. Bojková, N. Stollárová, D. Dobrota,
Jazyk angličtina Země Německo
Typ dokumentu časopisecké články, práce podpořená grantem
CINAHL Plus with Full Text (EBSCOhost) od 2006-02-01 do Před 1 rokem
Medline Complete (EBSCOhost) od 1999-02-01 do Před 1 rokem
Nursing & Allied Health Database (ProQuest) od 1999-01-01 do Před 1 rokem
Health & Medicine (ProQuest) od 1999-01-01 do Před 1 rokem
Family Health Database (ProQuest) od 1999-01-01 do Před 1 rokem
Public Health Database (ProQuest) od 1999-01-01 do Před 1 rokem
Odkazy
PubMed
25930965
DOI
10.1007/s00394-015-0910-5
Knihovny.cz E-zdroje
- MeSH
- antigen Ki-67 genetika metabolismus MeSH
- antitumorózní látky fytogenní analýza farmakologie MeSH
- apoptóza účinky léků MeSH
- experimentální nádory mléčných žláz farmakoterapie MeSH
- flavonoidy analýza farmakologie MeSH
- fragmentace DNA účinky léků MeSH
- kaspasa 3 genetika metabolismus MeSH
- krysa rodu rattus MeSH
- lidé MeSH
- methylnitrosomočovina toxicita MeSH
- MFC-7 buňky MeSH
- modely nemocí na zvířatech MeSH
- ovoce chemie MeSH
- polyfenoly analýza farmakologie MeSH
- proliferace buněk účinky léků MeSH
- protein X asociovaný s bcl-2 genetika metabolismus MeSH
- receptor 2 pro vaskulární endoteliální růstový faktor genetika metabolismus MeSH
- stilbeny analýza farmakologie MeSH
- tyrosin analogy a deriváty metabolismus MeSH
- vztah mezi dávkou a účinkem léčiva MeSH
- zvířata MeSH
- Check Tag
- krysa rodu rattus MeSH
- lidé MeSH
- ženské pohlaví MeSH
- zvířata MeSH
- Publikační typ
- časopisecké články MeSH
- práce podpořená grantem MeSH
PURPOSE: Fruit and vegetable intake is inversely correlated with cancer; thus, it is proposed that an extract of phytochemicals as present in whole fruits, vegetables, or grains may have anti-carcinogenic properties. Thus, the anti-tumour effects of fruit peel polyphenols (Flavin7) in the chemoprevention of N-methyl-N-nitrosourea-induced mammary carcinogenesis in female rats were evaluated. METHODS: Lyophilized substance of Flavin7 (F7) was administered at two concentrations of 0.3 and 3 % through diet. The experiment was terminated 14 weeks after carcinogen administration, and mammary tumours were removed and prepared for histopathological and immunohistochemical analysis. In addition, using an in vitro cytotoxicity assay, apoptosis and proliferation after F7 treatment in human breast adenocarcinoma (MCF-7) cells were performed. RESULTS: High-dose F7 suppressed tumour frequency by 58 % (P < 0.001), tumour incidence by 24 % (P < 0.05), and lengthened latency by 8 days (P > 0.05) in comparison with the control rats, whereas lower dose of F7 was less effective. Histopathological analysis of tumours showed significant decrease in the ratio of high-/low-grade carcinomas after high-dose F7 treatment. Immunohistochemical analysis of rat carcinoma cells in vivo found a significant increase in caspase-3 expression and significant decrease in Bcl-2, Ki67, and VEGFR-2 expression in the high-dose group. Both doses demonstrated significant positive effects on plasma lipid metabolism in rats. F7 significantly decreased survival of MCF-7 cells in vitro in MTT assay by dose- and time-dependent manner compared to control. F7 prevented cell cycle progression by significant enrichment in G1 cell populations. Incubation with F7 showed significant increase in the percentage of annexin V-/PI-positive MCF-7 cells and DNA fragmentation. CONCLUSIONS: Our results reveal a substantial tumour-suppressive effect of F7 in the breast cancer model. We propose that the effects of phytochemicals present in this fruit extract are responsible for observed potent anti-cancer activities.
Department of Anatomy Comenius University Martin Slovakia
Department of Histology and Embryology Comenius University Martin Slovakia
Department of Medical Biochemistry Comenius University Martin Slovakia
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- $a Kubatka, Peter $u Department of Medical Biology, Jessenius Faculty of Medicine, Comenius University, Malá Hora 4, 036 01, Martin, Slovakia. kubatka@jfmed.uniba.sk.
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- $a Fruit peel polyphenols demonstrate substantial anti-tumour effects in the model of breast cancer / $c P. Kubatka, A. Kapinová, M. Kello, P. Kruzliak, K. Kajo, D. Výbohová, S. Mahmood, R. Murin, T. Viera, J. Mojžiš, A. Zulli, M. Péč, M. Adamkov, M. Kassayová, B. Bojková, N. Stollárová, D. Dobrota,
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- $a PURPOSE: Fruit and vegetable intake is inversely correlated with cancer; thus, it is proposed that an extract of phytochemicals as present in whole fruits, vegetables, or grains may have anti-carcinogenic properties. Thus, the anti-tumour effects of fruit peel polyphenols (Flavin7) in the chemoprevention of N-methyl-N-nitrosourea-induced mammary carcinogenesis in female rats were evaluated. METHODS: Lyophilized substance of Flavin7 (F7) was administered at two concentrations of 0.3 and 3 % through diet. The experiment was terminated 14 weeks after carcinogen administration, and mammary tumours were removed and prepared for histopathological and immunohistochemical analysis. In addition, using an in vitro cytotoxicity assay, apoptosis and proliferation after F7 treatment in human breast adenocarcinoma (MCF-7) cells were performed. RESULTS: High-dose F7 suppressed tumour frequency by 58 % (P < 0.001), tumour incidence by 24 % (P < 0.05), and lengthened latency by 8 days (P > 0.05) in comparison with the control rats, whereas lower dose of F7 was less effective. Histopathological analysis of tumours showed significant decrease in the ratio of high-/low-grade carcinomas after high-dose F7 treatment. Immunohistochemical analysis of rat carcinoma cells in vivo found a significant increase in caspase-3 expression and significant decrease in Bcl-2, Ki67, and VEGFR-2 expression in the high-dose group. Both doses demonstrated significant positive effects on plasma lipid metabolism in rats. F7 significantly decreased survival of MCF-7 cells in vitro in MTT assay by dose- and time-dependent manner compared to control. F7 prevented cell cycle progression by significant enrichment in G1 cell populations. Incubation with F7 showed significant increase in the percentage of annexin V-/PI-positive MCF-7 cells and DNA fragmentation. CONCLUSIONS: Our results reveal a substantial tumour-suppressive effect of F7 in the breast cancer model. We propose that the effects of phytochemicals present in this fruit extract are responsible for observed potent anti-cancer activities.
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- $a Kapinová, Andrea $u Department of Medical Biochemistry, Comenius University, Martin, Slovakia.
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- $a Kruzliak, Peter $u International Clinical Research Center, St. Anne's University Hospital, Masaryk University, Pekarska 53, 656 91, Brno, Czech Republic.
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- $a Kajo, Karol $u Department of Pathology, St. Elisabeth Oncology Institute, Slovak Medical University, Heydukova 10, 812 50, Bratislava, Slovakia.
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- $a Výbohová, Desanka $u Department of Anatomy, Comenius University, Martin, Slovakia.
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