Synthesis, preclinical, and initial clinical evaluation of integrin αVβ3 and gastrin-releasing peptide receptor (GRPR) dual-targeting radiotracer [68Ga]Ga-RGD-RM26-03

Wen, Xuejun; Wang, Rongxi; Xu, Pengfei; Shi, Mengqi; Shang, Qingyao; Zeng, Xueyuan; Zeng, Xinying; Liu, Jia; Wang, Xin; Zhu, Zhaohui; Guo, Zhide; Chen, Xiaoyuan; Zhang, Jingjing

doi:10.1007/s00259-024-06634-9

Cited by 2 publications

(1 citation statement)

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“…68 Ga-LNC1015 was preliminarily evaluated in breast cancer patients, and its clinical feasibility was confirmed. 94 However, the use of αvβ3-GRPR antagonist radiopharmaceuticals in PC patients has not been implemented so far.…”

Section: αVβ3-grprmentioning

confidence: 99%

Radiopharmaceuticals Targeting Gastrin-Releasing Peptide Receptor for Diagnosis and Therapy of Prostate Cancer

Zou,

Huang,

et al. 2024

Mol. Pharmaceutics

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The high incidence and heavy disease burden of prostate cancer (PC) require accurate and comprehensive assessment for appropriate disease management. Prostate-specific membrane antigen (PSMA) positron emission tomography (PET) cannot detect PSMA-negative lesions, despite its key role in PC disease management. The overexpression of gastrin-releasing peptide receptor (GRPR) in PC lesions reportedly performs as a complementary target for the diagnosis and therapy of PC. Radiopharmaceuticals derived from the natural ligands of GRPR have been developed. These radiopharmaceuticals enable the visualization and quantification of GRPR within the body, which can be used for disease assessment and therapeutic guidance. Recently developed radiopharmaceuticals exhibit improved pharmacokinetic parameters without deterioration in affinity. Several heterodimers targeting GRPR have been constructed as alternatives because of their potential to detect tumor lesions with a low diagnostic efficiency of single target detection. Moreover, some GRPR-targeted radiopharmaceuticals have entered clinical trials for the initial staging or biochemical recurrence detection of PC to guide disease stratification and therapy, indicating considerable potential in PC disease management. Herein, we comprehensively summarize the progress of radiopharmaceuticals targeting GRPR. In particular, we discuss the impact of ligands, chelators, and linkers on the distribution of radiopharmaceuticals. Furthermore, we summarize a potential design scheme to facilitate the advancement of radiopharmaceuticals and, thus, prompt clinical translation.

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Section: αVβ3-grprmentioning

confidence: 99%