IndraLab

Statements


USP28 activates KDM1A. 6 / 6
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"In agreement with this notion, knockdown of USP28 reduced the protein level and functional activity of LSD1, but these could be rescued by exogenous LSD1 expression (XREF_FIG)."

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"Overexpression of USP28 largely reversed HDAC5-KD-induced LSD1 protein degradation, suggesting a role of HDAC5 as a positive regulator of LSD1 through upregulation of USP28 protein."

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"To test whether USP28 directly regulates protein stability of LSD1, we co-expressed LSD1 with USP28 or vector control in HEK293 cells and examined the degradation of LSD1."

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"First, our data indicates that USP28 is a specific DUB for LSD1, as knockdown of USP28 reduced LSD1 stability, whereas overexpression of USP28 stabilized LSD1."

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"Overexpression of USP28 largely reversed HDAC5-knockdown-induced LSD1 protein degradation, suggesting HDAC5 positively regulates LSD1 by stabilizing USP28."

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"Interestingly, the downregulation of LSD1 by two independent USP28 shRNAs in HCT116 cells could be restored by MG132 treatment (XREF_FIG), indicating that USP28 enhances LSD1 stabilization through a deubiquitination event."