KLF5 Promotes Tumor Progression and Parp Inhibitor Resistance in Ovarian Cancer
Abstract: One major characteristic of tumor cells is the aberrant activation of epigenetic regulatory elements, which remodel the tumor transcriptome and ultimately promote cancer progression and drug resistance. However, the oncogenic functions and mechanisms of ovarian cancer (OC) remain elusive. Here, super‐enhancer (SE) regulatory elements that are aberrantly activated in OC are identified and it is found that SEs drive the relative specific expression of the transcription factor KLF5 in OC patients and poly (ADP‐ribose) polymerase inhibitor (PARPi)‐resistant patients. KLF5 expression is associated with poor outcomes in OC patients and can drive tumor progression in vitro and in vivo. Mechanistically, KLF5 forms a transcriptional complex with EHF and ELF3 and binds to the promoter region of RAD51 to enhance its transcription, strengthening the homologous recombination repair (HRR) pathway. Notably, the combination of suberoylanilide hydroxamic acid (SAHA) and olaparib significantly inhibits tumor growth and metastasis of PARPi‐resistant OC cells with high KLF5. In conclusion, it is discovered that SEs‐driven KLF5 is a key regulatory factor in OC progression and PARPi resistance; and potential therapeutic strategies for OC patients with PARPi resistance and high KLF5 are identified.
- Location
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Deutsche Nationalbibliothek Frankfurt am Main
- Extent
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Online-Ressource
- Language
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Englisch
- Bibliographic citation
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KLF5 Promotes Tumor Progression and Parp Inhibitor Resistance in Ovarian Cancer ; day:13 ; month:09 ; year:2023 ; extent:19
Advanced science ; (13.09.2023) (gesamt 19)
- Creator
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Wu, Yong
Chen, Siyu
Shao, Yang
Su, Ying
Li, Qin
Wu, Jiangchun
Zhu, Jun
Wen, Hao
Huang, Yan
Zheng, Zhong
Chen, Xiaojun
Ju, Xingzhu
Huang, Shenglin
Wu, Xiaohua
Hu, Zhixiang
- DOI
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10.1002/advs.202304638
- URN
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urn:nbn:de:101:1-2023091316062036055920
- Rights
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Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.
- Last update
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14.08.2025, 10:46 AM CEST
Data provider
Deutsche Nationalbibliothek. If you have any questions about the object, please contact the data provider.
Associated
- Wu, Yong
- Chen, Siyu
- Shao, Yang
- Su, Ying
- Li, Qin
- Wu, Jiangchun
- Zhu, Jun
- Wen, Hao
- Huang, Yan
- Zheng, Zhong
- Chen, Xiaojun
- Ju, Xingzhu
- Huang, Shenglin
- Wu, Xiaohua
- Hu, Zhixiang
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