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A small molecule approach to degrade RAS with EGFR repression is a potential therapy for KRAS mutation-driven colorectal cancer resistance to cetuximab

Authors
 Sang-Kyu Lee  ;  Yong-Hee Cho  ;  Pu-Hyeon Cha  ;  Jeong-Soo Yoon  ;  Eun Ji Ro  ;  Woo-Jeong Jeong  ;  Jieun Park  ;  Hyuntae Kim  ;  Tae Il Kim  ;  Do Sik Min  ;  Gyoonhee Han  ;  Kang-Yell Choi 
Citation
 EXPERIMENTAL AND MOLECULAR MEDICINE, Vol.50(11) : 153, 2018 
Journal Title
 EXPERIMENTAL AND MOLECULAR MEDICINE 
ISSN
 1226-3613 
Issue Date
2018
Abstract
Drugs targeting the epidermal growth factor receptor (EGFR), such as cetuximab and panitumumab, have been prescribed for metastatic colorectal cancer (CRC), but patients harboring KRAS mutations are insensitive to them and do not have an alternative drug to overcome the problem. The levels of β-catenin, EGFR, and RAS, especially mutant KRAS, are increased in CRC patient tissues due to mutations of adenomatous polyposis coli (APC), which occur in 90% of human CRCs. The increases in these proteins by APC loss synergistically promote tumorigenesis. Therefore, we tested KYA1797K, a recently identified small molecule that degrades both β-catenin and Ras via GSK3β activation, and its capability to suppress the cetuximab resistance of KRAS-mutated CRC cells. KYA1797K suppressed the growth of tumor xenografts induced by CRC cells as well as tumor organoids derived from CRC patients having both APC and KRAS mutations. Lowering the levels of both β-catenin and RAS as well as EGFR via targeting the Wnt/β-catenin pathway is a therapeutic strategy for controlling CRC and other types of cancer with aberrantly activated the Wnt/β-catenin and EGFR-RAS pathways, including those with resistance to EGFR-targeting drugs attributed to KRAS mutations.
Files in This Item:
T201804511.pdf.pdf Download
DOI
10.1038/s12276-018-0182-2
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kim, Tae Il(김태일) ORCID logo https://orcid.org/0000-0003-4807-890X
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/166713
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