In this video, we highlight a dissection of the adult Drosophila intestine and collection of midguts suitable for single-cell dissociation and FACS in order to isolate intestinal stem cells.
Protocol
This protocol is an excerpt from Tauc et al., Isolating Intestinal Stem Cells from Adult Drosophila Midguts by FACS to Study Stem Cell Behavior During Aging, J. Vis. Exp. (2014). NOTE: If this protocol is used for the first time to isolate ISCs by FAC sorting, the following controls are mandatory in order to initially set the FACS parameters properly: Dissociated cells from wild type (e…
Materials
Forceps: Dumont, Inox Biologie #5
Fine Science Tools
11252-20
SefarNitex 03-150um/38 (35 µm nylon mesh)
Sefar
3A03-0150-102-00
Falcon 5 ml Round Bottom Polystyrene Test Tube with Cell Strainer Snap Cap
Corning
352235
Polymax 1040
Heidolph
543-42210-00
Albumin from bovine serum (BSA)
Sigma
A4503-50G
0.5% Trypsin-EDTA
Invitrogen
15400-054
Trypsin obtained from a different company most likely has a different activity and the duration of the trypsin digest has to be adjusted accordingly.
SYTOX Blue Dead Cell Stain for flow cytometry
Life Technologies
S34857
RNAlater Stabilization Solution
Life Technologies
AM7023
Other solutions, e.g., Trizol can be used for subsequent RNA isolation