Selective Translation of ZNF281 as Part of the Integrated Stress Response System has Therapeutic Relevance for Cardio-Oncology

Using a C57BL/6 mouse model, we isolated cardiomyocytes from ZNF281 overexpression (OE) and knockdown (Kd) mice, along with their respective controls, to analyze transcriptomic changes and ZNF281 genome-wide binding patterns. Additionally, we included tumor samples from nude mice, specifically A549 ZNF281 knockout (KO) tumors and parental A549 tumors, to explore the differential regulation and binding patterns of ZNF281 between cardiac tissue and tumors.

RNA-seq was performed to identify differentially expressed genes regulated by ZNF281 in both contexts, while ChIP-seq was conducted to map ZNF281 DNA-binding sites and its role in transcriptional regulation. This study will provide insights into the context-dependent functions of ZNF281 in the heart and tumors, enhancing our understanding of its role in cardiac biology and cancer progression.