Ddx47, also known as DEAD-box helicase 47, is involved in RNA processing, cell division, and R-loop resolution. It plays a crucial role in maintaining genome stability and tissue homeostasis, and is associated with various biological processes and diseases [2,3,4]. It is part of the small subunit processome (SSUP) which mediates 18S rRNA biogenesis and is important for translational control in stem cells [5].

In lung adenocarcinoma, high expression of Ddx47 predicts a poor prognosis, and its knockdown reduces cell proliferation and migration in vitro, confirming its cancer-promoting effect [1]. In Locusta migratoria, knockdown of LmDDX47 (the ortholog of Ddx47) leads to midgut atrophy, a reduction in the number of regenerative and columnar cells, and increased cell death, indicating its role in maintaining midgut homeostasis [4]. It has also been identified as an R-loop resolvase, protecting cells from harmful R loops [3].

In conclusion, Ddx47 is essential for RNA-related processes, tissue homeostasis, and genome stability. Its study in model organisms like Locusta migratoria and in in vitro cancer cell models has revealed its role in promoting cancer cell proliferation and maintaining midgut integrity, which could provide insights into related disease mechanisms and potential treatment strategies.