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2015 ; 5
(ä): 14570
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Ursolic acid exerts anti-cancer activity by suppressing vaccinia-related kinase
1-mediated damage repair in lung cancer cells
#MMPMID26412148
Kim SH
; Ryu HG
; Lee J
; Shin J
; Harikishore A
; Jung HY
; Kim YS
; Lyu HN
; Oh E
; Baek NI
; Choi KY
; Yoon HS
; Kim KT
Sci Rep
2015[Sep]; 5
(ä): 14570
PMID26412148
show ga
Many mitotic kinases have been targeted for the development of anti-cancer drugs,
and inhibitors of these kinases have been expected to perform well for cancer
therapy. Efforts focused on selecting good targets and finding specific drugs to
target are especially needed, largely due to the increased frequency of
anti-cancer drugs used in the treatment of lung cancer. Vaccinia-related kinase 1
(VRK1) is a master regulator in lung adenocarcinoma and is considered a key
molecule in the adaptive pathway, which mainly controls cell survival. We found
that ursolic acid (UA) inhibits the catalytic activity of VRK1 via direct binding
to the catalytic domain of VRK1. UA weakens surveillance mechanisms by blocking
53BP1 foci formation induced by VRK1 in lung cancer cells, and possesses
synergistic anti-cancer effects with DNA damaging drugs. Taken together, UA can
be a good anti-cancer agent for targeted therapy or combination therapy with DNA
damaging drugs for lung cancer patients.