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بیوشیمی مولکولی و سلولی 2013
جزئیات رویداد
همایش ، رویداد ، ژورنال
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  • peroxiredoxin 2 is upregulated in colorectal cancer and contributes to colorectal cancer cells’ survival by protecting cells from oxidative stress

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    • تاریخ ارائه: 1392/07/24
    • تاریخ انتشار در تی پی بین: 1392/07/24
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    • شماره تماس دبیرخانه رویداد: -
     peroxiredoxin 2 (prdx2) is a member of the peroxiredoxin family, which is responsible for neutralizing reactive oxygen species. prdx2 has been found to be elevated in several human cancer cells and tissues, including colorectal cancer (crc), and it influences diverse cellular processes involving cells’ survival, proliferation, and apoptosis, which suggests a possible role for prdx2 in the maintenance of cancer cell. however, the mechanism by which prdx2 modulates crc cells’ survival is unknown. the current study aimed to determine the effect of elevated prdx2 on crc cells and to further understand the underlying mechanisms. the results of this study showed that prdx2 was upregulated in crc tissues compared with the matched noncancer colorectal mucosa tissues and that prdx2 expression was positively associated with tumor metastasis and the tnm stage. in the lovo crc cell line, prdx2 was upregulated at both the rna and protein levels compared with the normal fhc colorectal mucosa cell line. in addition, the lovo crc cell line was significantly more resistant to hydrogen peroxide (h2o2)-induced apoptosis because of a failure to activate pro-apoptotic pathways in contrast to prdx2 knockdown cells. suppression of prdx2 using a lentiviral vector-mediated prdx2-specific shrna in the lovo cell line restored h2o2 sensitivity. our results suggested that prdx2 has an essential role in regulating oxidation-induced apoptosis in crc cells. prdx2 may have potential as a therapeutic target in crc.

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