IndraLab

Statements


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"USP22 Induces Cisplatin Resistance in Lung Adenocarcinoma by Regulating gammaH2AX Mediated DNA Damage Repair and Ku70 and Bax Mediated Apoptosis."

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"According to that model, USP22 enhances DNA damage repair and cisplatin resistance by deubiquitinating histone H2A, which in turn facilitates the phosphorylation of histone H2AX."

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"Combining with our previous results, we concluded that both USP22 and Sirt1 can induce cisplatin resistance, but Sirt1 overexpression ca n't phenocopy USP22 mediated cisplatin resistance."

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"The study reveal the dual mechanism of USP22 involvement in cisplatin resistance : (1) USP22 enhances DNA damage repair and induce cisplatin resistance by promoting the phosphorylation of histone H2AX via deubiquitinating histone H2A."

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"These results confirm that USP22 is involved in the cisplatin resistance of A549 and CDDP cells and H2AX, gammaH2AX, and Sirt1 may be responsible for USP22 mediated cisplatin resistance."

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"To verify whether inhibition of USP22 expression could reverse the cisplatin resistance of A549 and CDDP cells, CCK8 assays showed that, after the inhibition of USP22 expression, the 48h IC50 of A549 and CDDP decreased from 0.925 +/- 0.04 muM to 0.337 +/- 0.03 muM."

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"To verify whether inhibition of USP22 expression could reverse the cisplatin resistance of A549 and CDDP cells, CCK8 assays showed that, after the inhibition of USP22 expression, the 48h IC50 of A549 and CDDP decreased from 0.925 +/- 0.04 muM to 0.337 +/- 0.03 muM."

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"Moreover, the resistance degree of USP22 mediated cisplatin resistance was higher than Sirt1 mediated cisplatin resistance."

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"To further confirm that USP22 induces cisplatin resistance via Sirt1, we added flow cytometric analysis results."