Sample Preparation and Imaging of the Pupal Drosophila Abdominal Epidermis.

Daiki Umetsu

Methods in molecular biology (Clifton, N.J.) 2022

filter terms:

The epithelium is one of the best studied tissues for morphogenesis, pattern formation, cell polarity, cell division, cell competition, tumorigenesis, and metastatic behaviors. However, it has been challenging to analyze real-time cell interactions or cell dynamics within the epithelia under physiological conditions. The Drosophila pupal abdominal epidermis is a model system that allows to combine long-term real-time imaging under physiological conditions with the use of powerful Drosophila genetics tools. The abdominal epidermis displays a wide range of stereotypical characteristics of the epithelia and cellular behaviors including cell division, cell death, cell rearrangement, apical constriction, and apicobasal/planar polarity, making this tissue a first choice for the study of epithelial morphogenesis and relevant phenomena. In this chapter, I describe the staging and mounting of pupae and the live imaging of the abdominal epidermis. Moreover, methods to combine live imaging with mosaic analysis or drug injection will be presented. The long-term live imaging of the pupal abdominal epidermis is straightforward and opens up the possibility to analyze cell dynamics during epithelial morphogenesis at an unprecedented resolution. © 2022. The Author(s), under exclusive license to Springer Science+Business Media, LLC, part of Springer Nature.

Citation

Daiki Umetsu. Sample Preparation and Imaging of the Pupal Drosophila Abdominal Epidermis. Methods in molecular biology (Clifton, N.J.). 2022;2540:335-347