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Subcellular localization of X-linked inhibitor of apoptosis protein (XIAP) in cancer: does that matter? BBA ADVANCES 2022; 2:100050. [PMID: 37082602 PMCID: PMC10074912 DOI: 10.1016/j.bbadva.2022.100050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2021] [Revised: 02/25/2022] [Accepted: 03/15/2022] [Indexed: 11/20/2022] Open
Abstract
X-linked inhibitor of apoptosis protein (XIAP) finely tunes the balance between survival and death to control homeostasis. XIAP is found aberrantly expressed in cancer, which has been shown to promote resistance to therapy-induced apoptosis and confer poor outcome. Despite its predominant cytoplasmic localization in human tissues, growing evidence implicates the expression of XIAP in other subcellular compartments in sustaining cancer hallmarks. Herein, we review our current knowledge on the prognostic role of XIAP localization and discuss molecular mechanisms underlying differential biological functions played in each compartment. The comprehension of XIAP subcellular shuttling and functional dynamics might provide the rationale for future anticancer therapeutics.
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Bae I, Kim D, Choi J, Kim J, Kim M, Park B, Kim YH, Ahn YG, Hyung Kim H, Kim DK. Design, synthesis and biological evaluation of new bivalent quinazoline analogues as IAP antagonists. Bioorg Med Chem Lett 2020; 34:127676. [PMID: 33166687 DOI: 10.1016/j.bmcl.2020.127676] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2020] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 11/17/2022]
Abstract
We recently reported the biological evaluations of monovalent IAP antagonist 7 with good potency (MDA-MB-231, IC50 = 19 nM). In an effort to increase cellular activity and improve favorable drug-like properties, we newly designed and synthesized bivalent analogues based on quinazoline structure of 7. Optimization of cellular potency and CYP inhibition led to the identification of 27, which showed dramatic increase of over 100-fold (IC50 = 0.14 nM) and caused substantial tumor regressions in MDA-MB-231 xenograft model. These results strongly support 27 as a promising bivalent antagonist for the development of an effective anti-tumor approaches.
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Affiliation(s)
- Inhwan Bae
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, 84, Heukseok-gu, Seoul 06974, Republic of Korea; Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Daejin Kim
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, 84, Heukseok-gu, Seoul 06974, Republic of Korea; Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Jaeyul Choi
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Jisook Kim
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Minjeong Kim
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Bokyung Park
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, 84, Heukseok-gu, Seoul 06974, Republic of Korea
| | - Young Hoon Kim
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Young Gil Ahn
- Hanmi Research Center, Hanmi Pharm. Co. Ltd., 550 Dongtangiheung-Ro, Hwaseong-Si, Gyeonggi-Do 18469, Republic of Korea.
| | - Ha Hyung Kim
- Biotherapeutics and Glycomics Laboratory, College of Pharmacy, Chung-Ang University, 84, Heukseok-gu, Seoul 06974, Republic of Korea.
| | - Dae Kyong Kim
- Department of Environmental & Health Chemistry, College of Pharmacy, Chung-Ang University, 84, Heukseok-gu, Seoul 06974, Republic of Korea.
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