Monday, June 4, 2018

in vivo RNAi screen focused on the female germline

Cho Y, Lai CM, Lin KY, Hsu HJ. A Targeted RNAi Screen Reveals Drosophila Female-Sterile Genes That Control the Size of Germline Stem Cell Niche During Development. G3 (Bethesda). 2018 May 15. PMID: 29764959.

From the abstract: "... we conducted a small-scale RNAi screen of 560 individually expressed UAS-RNAi lines with targets implicated in female fertility. RNAi was expressed in the soma of larval gonads, and screening for reduced egg production and abnormal ovarian morphology was performed in adults. Twenty candidates that affect ovarian development were identified and subsequently knocked down in the soma only during niche formation. ..."

Genome-wide cell-based RNAi screen related to JAK/STAT signaling

Fisher KH, Fragiadaki M, Pugazhendhi D, Bausek N, Arredondo MA, Thomas SJ, Brown S, Zeidler MP. A genome-wide RNAi screen identifies MASK as a positive regulator of cytokine receptor stability. J Cell Sci. 2018 May 30. PMID: 29848658.

From the abstract: "... In order to transduce ligand activation, cytokine receptors must dimerise. However, mechanisms regulating their dimerisation are poorly understood. In order to better understand the processes regulating cytokine receptor levels, activity and dimerisation, we used the highly conserved JAK/STAT pathway in Drosophila, which acts via a single receptor, known as Domeless. We have performed a genome-wide RNAi screen in Drosophila cells, identifying MASK as a positive regulator of Domeless dimerisation and protein levels. ... our results identify MASK as a novel regulator of cytokine receptor levels, and suggest functional conservation, which may have implications for human health."