Amos Hong Pheng Loh, Min Thura, Abhishek Gupta, Sheng Hui Tan, Kelvin Kam Yew Kuan, Koon Hwee Ang, Khurshid Merchant, Kenneth Tou En Chang, Hui Yi Yon, Yong Chen, Mathew Hern Wang Cheng, Arjandas Mahadev, Matthew Chau Hsien Ng, Michaela Su-Fern Seng, Prasad Iyer, Pei Ling Chia, Shui Yen Soh, Qi Zeng
Phosphatase of regenerating liver 3 (PRL3) is a specific tumor antigen overexpressed in a broad range of adult cancer types. However, its physiological expression in pediatric embryonal and mesenchymal tumors and its association with clinical outcomes in children is unknown. We sought to profile the expression of PRL3 in pediatric tumors in relation to survival outcomes, expression of angiogenesis markers, and G-protein-coupled receptor (GPCR)-mitogen-activated protein kinase (MAPK) signaling targets. PRL3-zumab, a first-in-class humanized antibody, was administered in a dose escalation schedule in a first-in-child clinical trial to study toxicity, pharmacokinetics, and clinical outcomes...
September 21, 2023: Molecular Therapy Oncolytics