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의료용 고분자 부문위원회
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A Targeted FerroTAC System Achieves Tumor-Specific Penetration and Overcomes Drug Resistance
발표자

홍지민 (서울대학교)

연구책임자

이강원 (서울대학교)

공동저자
홍지민 (서울대학교), 이예진 (서울대학교), 류수현 (서울대학교), 이강원 (서울대학교)

초록

내용
Drug resistance remains a major unresolved challenge in cancer treatment. Here, we introduce a FerroTAC system, a targeted liposome platform co-delivering Oligo-PROTACs and iron nanoparticles to overcome drug resistance. Oligo-PROTACs degrade NRF2, a key transcription factor in drug resistance, while iron nanoparticles trigger ferroptosis to bypass conventional resistance pathways. For efficient tumor delivery, we designed a liposome vehicle functionalized with iRGD peptides and tumor microenvironment-responsive ECM-degrading enzymes. Liposomes modified with iRGD selectively target and penetrate αvβ3/5 integrin-overexpressing cancer cells. Furthermore, collagenases are selectively released via hypoxia-cleavable linkers, effectively degrading ECM barriers and maximizing drug penetration into the tumor. Collectively, FerroTAC provides a multi-mechanism strategy to overcome resistance and enhance anticancer therapeutic efficacy.
발표코드
2PS-065
발표일정
2026-04-09  17:00 - 18:30