Copper metabolism domain-containing protein 1 mRNA (COMMD1 mRNA) (COMMD1 mRNA)

COMMD1 mRNA is the transcript encoding Copper metabolism domain-containing protein 1 (formerly MURR1), a critical scaffold protein involved in diverse cellular processes including copper excretion, NF-kappaB signaling, and DNA double-strand break repair [1, 2]. In copper homeostasis, the encoded protein interacts with the copper transporters ATP7A and ATP7B to facilitate biliary copper excretion; mutations or deletions in the COMMD1 gene lead to severe hepatic copper accumulation and cirrhosis, as seen in canine copper toxicosis [2, 5, 17]. In the field of oncology, particularly non-small cell lung cancer (NSCLC), COMMD1 mRNA is often overexpressed and correlates with poor prognosis, where it supports tumor cell survival by facilitating the repair of DNA double-strand breaks [1, 3, 6]. Consequently, COMMD1 mRNA has emerged as a therapeutic target for RNA interference (RNAi) strategies, such as siRNAs, which aim to downregulate its expression to inhibit tumor growth and sensitize cells to DNA-damaging treatments [1, 9]. Additionally, mRNA-based replacement therapies are a potential avenue for treating genetic copper storage disorders by restoring functional COMMD1 protein levels [19, 20]. The regulation of COMMD1 is also linked to the degradation of HIF-1alpha and the sodium channel ENaC, making its mRNA a focal point for research in hypoxia and hypertension [2, 5].

Other names

MURR1 mRNACopper metabolism MURR1 domain-containing protein 1 mRNAU2AF1-RS1 region 1 mRNA

RNA interference (siRNA-mediated knockdown) or antisense oligonucleotide (ASO) inhibition to reduce protein expression in overexpressing conditions like NSCLC.