Sal-like protein 4 messenger RNA 3' untranslated region (SALL4 mRNA 3'-UTR) (SALL4 mRNA 3'-UTR)

The Sal-like protein 4 (SALL4) messenger RNA 3'-untranslated region (3'-UTR) is a critical regulatory segment of the SALL4 transcript, which encodes a zinc-finger transcription factor essential for embryonic development and the maintenance of stem cell pluripotency (Zhang et al., 2015). While SALL4 is typically silenced in most adult tissues, it is frequently reactivated in various malignancies, including hepatocellular carcinoma (HCC) and acute myeloid leukemia (AML), where it acts as a potent oncofetal protein driving tumor growth and self-renewal (Yong et al., 2013). The 3'-UTR contains multiple binding sites for microRNAs (miRNAs) and RNA-binding proteins that post-transcriptionally control the stability and translation efficiency of the SALL4 message (Cheng et al., 2015). Therapeutic strategies targeting this region, such as antisense oligonucleotides (ASOs), small interfering RNAs (siRNAs), or miRNA mimics, aim to downregulate SALL4 expression to inhibit oncogenic signaling pathways. Because SALL4 is a key driver of cancer stemness, the 3'-UTR represents a high-value target for precision oncology, although challenges include ensuring delivery to target tissues and avoiding developmental toxicity, as SALL4 is a known neo-substrate for teratogenic drugs like thalidomide (Matyskiela et al., 2018).

Other names

SALL4 3'-UTRSpalt-like transcription factor 4 mRNA 3' untranslated regionZNF797 mRNA 3'-UTRSal-like 4 mRNA 3'-UTR

Binding to the 3'-untranslated region to induce mRNA degradation or inhibit translation, thereby reducing the expression of the SALL4 oncofetal protein.