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Antiproliferative Activity of Melanoidins Isolated from Heated Potato Fiber (Potex) in Glioma Cell Culture Model

Langner, Ewa; Nunes, Fernando M.; Pozarowski, Piotr; Kandefer-Szerszen, Martyna; Pierzynowski, Stefan LU and Rzeski, Wojciech (2011) In Journal of Agricultural and Food Chemistry 59(6). p.2708-2716
Abstract
Potex constitutes a potato fiber preparation widely used as an ingredient to meat and bakery products which thermal treatment results in creation of new compounds. Melanoidins are high molecular weight brown end products of Maillard reaction, and few data presenting tumor cell growth inhibiting activity of melanoidins have been reported. Thus, in present study we utilized water extract of Potex roasted (180 degrees C for 2 h), whose chemical characterization revealed the presence of melanoidin complexes. Heated Potex extract inhibited C6 glioma cell proliferation in a dose-dependent manner measured by MTT method. High molecular weight components present in initial extract were responsible for stronger antiproliferative effect compared with... (More)
Potex constitutes a potato fiber preparation widely used as an ingredient to meat and bakery products which thermal treatment results in creation of new compounds. Melanoidins are high molecular weight brown end products of Maillard reaction, and few data presenting tumor cell growth inhibiting activity of melanoidins have been reported. Thus, in present study we utilized water extract of Potex roasted (180 degrees C for 2 h), whose chemical characterization revealed the presence of melanoidin complexes. Heated Potex extract inhibited C6 glioma cell proliferation in a dose-dependent manner measured by MTT method. High molecular weight components present in initial extract were responsible for stronger antiproliferative effect compared with low molecular weight fraction. Impaired MAPK (mitogen-activated protein kinase) and Akt signaling was found in cells treated with the extract. Moreover, flow cytometry analyses revealed the extract to induce G(1)/S arrest in glioma cells. Simultaneously, Western blot analysis showed elevated levels of p21 protein with concomitant decrease of cyclin D1. In conclusion, observed antiproliferative activity of melanoidins present in heated Potex was linked to disregulated MAPK and Akt signaling pathways, as well as to cell cycle cessation. These results suggest potential application of Potex preparation as a functional food ingredient and chemopreventive agent. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
antiproliferative effect, cell cycle, melanoidins, potato fiber, protein kinase signaling
in
Journal of Agricultural and Food Chemistry
volume
59
issue
6
pages
2708 - 2716
publisher
The American Chemical Society
external identifiers
  • wos:000288401800072
  • scopus:79952763816
ISSN
0021-8561
DOI
10.1021/jf1047223
language
English
LU publication?
yes
id
67aafd3c-8763-4487-a4e9-3f4ae962ee5a (old id 1936192)
date added to LUP
2011-05-10 09:36:45
date last changed
2017-10-01 03:30:36
@article{67aafd3c-8763-4487-a4e9-3f4ae962ee5a,
  abstract     = {Potex constitutes a potato fiber preparation widely used as an ingredient to meat and bakery products which thermal treatment results in creation of new compounds. Melanoidins are high molecular weight brown end products of Maillard reaction, and few data presenting tumor cell growth inhibiting activity of melanoidins have been reported. Thus, in present study we utilized water extract of Potex roasted (180 degrees C for 2 h), whose chemical characterization revealed the presence of melanoidin complexes. Heated Potex extract inhibited C6 glioma cell proliferation in a dose-dependent manner measured by MTT method. High molecular weight components present in initial extract were responsible for stronger antiproliferative effect compared with low molecular weight fraction. Impaired MAPK (mitogen-activated protein kinase) and Akt signaling was found in cells treated with the extract. Moreover, flow cytometry analyses revealed the extract to induce G(1)/S arrest in glioma cells. Simultaneously, Western blot analysis showed elevated levels of p21 protein with concomitant decrease of cyclin D1. In conclusion, observed antiproliferative activity of melanoidins present in heated Potex was linked to disregulated MAPK and Akt signaling pathways, as well as to cell cycle cessation. These results suggest potential application of Potex preparation as a functional food ingredient and chemopreventive agent.},
  author       = {Langner, Ewa and Nunes, Fernando M. and Pozarowski, Piotr and Kandefer-Szerszen, Martyna and Pierzynowski, Stefan and Rzeski, Wojciech},
  issn         = {0021-8561},
  keyword      = {antiproliferative effect,cell cycle,melanoidins,potato fiber,protein kinase signaling},
  language     = {eng},
  number       = {6},
  pages        = {2708--2716},
  publisher    = {The American Chemical Society},
  series       = {Journal of Agricultural and Food Chemistry},
  title        = {Antiproliferative Activity of Melanoidins Isolated from Heated Potato Fiber (Potex) in Glioma Cell Culture Model},
  url          = {http://dx.doi.org/10.1021/jf1047223},
  volume       = {59},
  year         = {2011},
}