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Combination therapy of RRM2 siRNA and endocrine therapy or chemotherapy for treatment of Luminal A breast cancer : Luminal A 유방암 치료를 위한 RRM2 siRNA와 호르몬 요법 또는 화학요법과의 병용 치료 시 시너지 효과 분석
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- Authors
- Advisor
- Shin Young Kee
- Major
- 약학대학 약학과
- Issue Date
- 2016-02
- Publisher
- 서울대학교 대학원
- Keywords
- Luminal A breast cancer ; Ribonucleotide reductase M2 subunit ; small interfering RNA ; Synergistic effect
- Description
- 학위논문 (석사)-- 서울대학교 대학원 : 약학대학 약학과, 2016. 2. 신영기.
- Abstract
- Ribonucleotide reductase M2 (RRM2) subunit is one of two subunits that constitute ribonucleotide reductase, the enzyme that converts ribonucleotide 5'-diphosphates into 2'-deoxyribonucleotides, which are required for DNA synthesis. The overexpression of RRM2 was associated with tumor aggression and higher risk of relapse in even Luminal A– the least aggressive breast cancer subtype. In this study, the therapeutic potential of targeting RRM2 was investigated in Luminal A subtype. Suppression of ribonucleotide reductase M2 subunit synthesis, using small interfering RNA, inhibited cell growth, clonogenicity, wound healing ability and triggered G1 phase cell cycle arrest in Luminal A breast cancer cell lines. Targeting RRM2 as a therapy was demonstrated to show synergistic effect with Tamoxifen and Doxorubicin in the inhibition of MCF-7 cell line. The study suggests that suppression of RRM2 (and its function) is a potential therapeutic strategy and combined therapy of targeting RRM2 and endocrine or chemotherapy is recommended for poor prognosis Luminal A patients whose RRM2 expression is elevated.
- Language
- English
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