Development of Stem-Cell-Mobilizing Agents Targeting CXCR4 Receptor for Peripheral Blood Stem Cell Transplantation and Beyond
作者:Chien-Huang Wu、Jen-Shin Song、Hsuan-Hao Kuan、Szu-Huei Wu、Ming-Chen Chou、Jiing-Jyh Jan、Lun K. Tsou、Yi-Yu Ke、Chiung-Tong Chen、Kai-Chia Yeh、Sing-Yi Wang、Teng-Kuang Yeh、Chen-Tso Tseng、Chen-Lung Huang、Mine-Hsine Wu、Po-Chu Kuo、Chia-Jui Lee、Kak-Shan Shia
DOI:10.1021/acs.jmedchem.7b01322
日期:2018.2.8
The function of the CXCR4/CXCL12 axis accounts for many disease indications, including tissue/nerve regeneration, cancer metastasis, and inflammation. Blocking CXCR4 signaling with its antagonists may lead to moving out CXCR4(+) cell types from bone marrow to peripheral circulation. We have discovered a novel series of pyrimidine-based CXCR4 antagonists, a representative (i.e., 16) of which was tolerated at a higher dose and showed better HSC-mobilizing ability at the maximal response dose relative to the approved drug 1 (AMD3100), and thus considered a potential drug candidate for PBSCT indication. Docking compound 16 into the X-ray crystal structure of CXCR4 receptor revealed that it adopted a spider-like conformation striding over both major and minor subpockets. This putative binding mode provides a new insight into CXCR4 receptor-ligand interactions for further structural modifications.