eLife Assessment
This useful study presents findings on the developmental roles of Nup107, a key nucleoporin, in regulating the larval-to-pupal transition in Drosophila melanogaster through its involvement in ecdysone signaling. The evidence supporting the authors' claims is solid, with robust experimental approaches including RNAi knockdown and rescue experiments. The findings highlight Nup107's function in regulating ecdysone biosynthesis, specifically through the regulation of EcR levels and Halloween genes expression in the prothoracic gland; additionally, rescue experiments suggest that the RTK PTTH/Torso signaling pathway is disrupted upon Nup107 depletion, further emphasizing its role in ecdysone regulation. However, finding a mechanism, addressing potential off-target effects of RNAi, and exploring alternative mutant models would strengthen the findings as the currently proposed mechanism is not fully supported by the data.