{"title":"大肠癌ddr1靶向示踪剂的合成及临床前评价","authors":"Yuze Ma,Jingyue Gao,Kunyao Wang,Wenqi Zhao,Feng Gao","doi":"10.1021/acs.jmedchem.5c01224","DOIUrl":null,"url":null,"abstract":"Colorectal cancer (CRC) is one of the most common tumors, and discoidin domain receptor 1 (DDR1) expression is significantly higher in CRC. In this study, we designed and synthesized eight novel 68Ga-labeled DDR1-targeted radiotracers. The radiochemical purities (RCPs) of radiotracers were all over 95%; except for [68Ga]Ga-MYZ02 and [68Ga]Ga-MYZ06, other six radiotracers showed high stability in vitro and in vivo. The equilibrium dissociation constants (KD) of radiotracers were all in the nanomolar range. Micro-PET/CT imaging and biodistribution study showed that [68Ga]Ga-MYZ04, which exhibits favorable pharmacokinetic properties, could clearly visualize tumors at 1 h postinjection. Among the six radiotracers, [68Ga]Ga-MYZ04 had the highest tumor-to-muscle ratio (T/M: 4.21 ± 0.51), a higher tumor-to-liver ratio (T/L: 0.71 ± 0.06), and the lowest tumor-to-kidney ratio (T/K: 0.55 ± 0.03), suggesting a superior metabolic pathway with primary clearance through the urinary system. This makes it promising for the imaging diagnosis of DDR1-positive expressing CRC.","PeriodicalId":46,"journal":{"name":"Journal of Medicinal Chemistry","volume":"108 1","pages":""},"PeriodicalIF":6.8000,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Synthesis and Preclinical Evaluation of DDR1-Targeted Radiotracers for Colorectal Cancer Diagnosis.\",\"authors\":\"Yuze Ma,Jingyue Gao,Kunyao Wang,Wenqi Zhao,Feng Gao\",\"doi\":\"10.1021/acs.jmedchem.5c01224\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Colorectal cancer (CRC) is one of the most common tumors, and discoidin domain receptor 1 (DDR1) expression is significantly higher in CRC. In this study, we designed and synthesized eight novel 68Ga-labeled DDR1-targeted radiotracers. The radiochemical purities (RCPs) of radiotracers were all over 95%; except for [68Ga]Ga-MYZ02 and [68Ga]Ga-MYZ06, other six radiotracers showed high stability in vitro and in vivo. The equilibrium dissociation constants (KD) of radiotracers were all in the nanomolar range. Micro-PET/CT imaging and biodistribution study showed that [68Ga]Ga-MYZ04, which exhibits favorable pharmacokinetic properties, could clearly visualize tumors at 1 h postinjection. Among the six radiotracers, [68Ga]Ga-MYZ04 had the highest tumor-to-muscle ratio (T/M: 4.21 ± 0.51), a higher tumor-to-liver ratio (T/L: 0.71 ± 0.06), and the lowest tumor-to-kidney ratio (T/K: 0.55 ± 0.03), suggesting a superior metabolic pathway with primary clearance through the urinary system. This makes it promising for the imaging diagnosis of DDR1-positive expressing CRC.\",\"PeriodicalId\":46,\"journal\":{\"name\":\"Journal of Medicinal Chemistry\",\"volume\":\"108 1\",\"pages\":\"\"},\"PeriodicalIF\":6.8000,\"publicationDate\":\"2025-10-24\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Medicinal Chemistry\",\"FirstCategoryId\":\"3\",\"ListUrlMain\":\"https://doi.org/10.1021/acs.jmedchem.5c01224\",\"RegionNum\":1,\"RegionCategory\":\"医学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"CHEMISTRY, MEDICINAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Medicinal Chemistry","FirstCategoryId":"3","ListUrlMain":"https://doi.org/10.1021/acs.jmedchem.5c01224","RegionNum":1,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"CHEMISTRY, MEDICINAL","Score":null,"Total":0}
Synthesis and Preclinical Evaluation of DDR1-Targeted Radiotracers for Colorectal Cancer Diagnosis.
Colorectal cancer (CRC) is one of the most common tumors, and discoidin domain receptor 1 (DDR1) expression is significantly higher in CRC. In this study, we designed and synthesized eight novel 68Ga-labeled DDR1-targeted radiotracers. The radiochemical purities (RCPs) of radiotracers were all over 95%; except for [68Ga]Ga-MYZ02 and [68Ga]Ga-MYZ06, other six radiotracers showed high stability in vitro and in vivo. The equilibrium dissociation constants (KD) of radiotracers were all in the nanomolar range. Micro-PET/CT imaging and biodistribution study showed that [68Ga]Ga-MYZ04, which exhibits favorable pharmacokinetic properties, could clearly visualize tumors at 1 h postinjection. Among the six radiotracers, [68Ga]Ga-MYZ04 had the highest tumor-to-muscle ratio (T/M: 4.21 ± 0.51), a higher tumor-to-liver ratio (T/L: 0.71 ± 0.06), and the lowest tumor-to-kidney ratio (T/K: 0.55 ± 0.03), suggesting a superior metabolic pathway with primary clearance through the urinary system. This makes it promising for the imaging diagnosis of DDR1-positive expressing CRC.
期刊介绍:
The Journal of Medicinal Chemistry is a prestigious biweekly peer-reviewed publication that focuses on the multifaceted field of medicinal chemistry. Since its inception in 1959 as the Journal of Medicinal and Pharmaceutical Chemistry, it has evolved to become a cornerstone in the dissemination of research findings related to the design, synthesis, and development of therapeutic agents.
The Journal of Medicinal Chemistry is recognized for its significant impact in the scientific community, as evidenced by its 2022 impact factor of 7.3. This metric reflects the journal's influence and the importance of its content in shaping the future of drug discovery and development. The journal serves as a vital resource for chemists, pharmacologists, and other researchers interested in the molecular mechanisms of drug action and the optimization of therapeutic compounds.