Title : GPx2 suppression of H2O2 stress links the formation of differentiated tumor mass to metastatic capacity in colorectal cancer.

Pub. Date : 2014 Nov 15

PMID : 25261240






8 Functional Relationships(s)
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1 GPx2 suppression of H2O2 stress links the formation of differentiated tumor mass to metastatic capacity in colorectal cancer. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
2 Here, we studied how the H2O2-reducing enzyme glutathione peroxidase 2 (GPx2) regulates H2O2 stress and differentiation in patient-derived "colonosphere" cultures. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
3 Here, we studied how the H2O2-reducing enzyme glutathione peroxidase 2 (GPx2) regulates H2O2 stress and differentiation in patient-derived "colonosphere" cultures. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
4 Here, we studied how the H2O2-reducing enzyme glutathione peroxidase 2 (GPx2) regulates H2O2 stress and differentiation in patient-derived "colonosphere" cultures. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
5 Here, we studied how the H2O2-reducing enzyme glutathione peroxidase 2 (GPx2) regulates H2O2 stress and differentiation in patient-derived "colonosphere" cultures. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
6 GPx2 silencing caused accumulation of radical oxygen species, sensitization to H2O2-induced apoptosis, and strongly reduced clone- and metastasis-forming capacity. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
7 Finally, GPx2 expression was inversely correlated with H2O2-stress signatures in human colon tumor cohorts, but positively correlated with differentiation and proliferation. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens
8 We conclude that H2O2 neutralization by GPx2 is essential for maintaining clonogenic and metastatic capacity, but also for the generation of differentiated proliferating tumor mass. Hydrogen Peroxide glutathione peroxidase 2 Homo sapiens