Abstract
Cell culture systems are widely used for molecular, genetic and biochemical studies. Primary cell cultures of animal tissues offer the advantage that specific cell types can be studied in vitro outside of their normal environment. We provide a detailed protocol for generating primary neural cell cultures derived from larval brains of Drosophila melanogaster. The developing larval brain contains stem cells such as neural precursors and intermediate neural progenitors, as well as fully differentiated and functional neurons and glia cells. We describe how to analyze these cell types in vitro by immunofluorescent staining and scanning confocal microscopy. Cell type–specific fluorescent reporter lines and genetically encoded calcium sensors allow the monitoring of developmental, cellular processes and neuronal activity in living cells in vitro. The protocol provides a basis for functional studies of wild-type or genetically manipulated primary neural cells in culture, both in fixed and living samples. The entire procedure takes ∼3 weeks.
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Acknowledgements
We thank the Bloomington Stock Center, K. Matthews, Y. Bellaiche and L. Looger for fly lines, and the DHSB for antibodies. Special thanks to our colleagues at the Department of Biology, the Institute of Developmental and Cell Biology and the Sprecher lab for helpful discussions. This work was funded by grant no. PP00P3_123339 from the Swiss National Science Foundation to S.G.S., the Novartis Foundation for Biomedical Research to S.G.S. and by the Swiss University Conference (SUK/CUS) to B.E.
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B.E., L.v.G. and M.M. performed the experiments. M.M., B.E., L.v.G. and S.G.S. developed the protocol. B.E. and S.G.S. wrote the paper.
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Egger, B., van Giesen, L., Moraru, M. et al. In vitro imaging of primary neural cell culture from Drosophila. Nat Protoc 8, 958–965 (2013). https://doi.org/10.1038/nprot.2013.052
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DOI: https://doi.org/10.1038/nprot.2013.052
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