Cell Culture Preparation of Domeless Eggs

20211109 Making Yeast Plates

  • Made sure the scooper/spatula was autoclaved
  • In the afternoon, made 2 apple juice yeast plates with 2 streaks of yeast on each plate
  • Made a new conical of 0% FBS medium:
    • 44.5mL 420 medium opened this day
    • 500ul 100X antibiotics
    • 50ul gentaminicin

20211110 Setting up Domeless Flies to Lay

  • Set up 4 vials of Domeless flies to lay on the yeast plate at about 2pm

20211111 Day 1 Cell Culture

  • Collected the apple juice plate at ~9:45am and replaced the cage with a new plate for more laying
  • Followed the Prepping Cell Culture Protocol
  • Used 0% FBS medium made on 20211109 and 10% FBS medium made on 20211102
  • Used Trypsin opened 20211111
  • For added sterility: after every time doing something out of the TC hood, I sprayed my gloves with ethanol before going back into the hood (centrifuges, etc.)
  • Yield of eggs was very good
  • They made a nice egg pellet
  • After processing, the cell pellet was smaller
  • And there was a small issue with the homogenized cells clumping with each other in the tube and in the flask. I tried pipette mixing many times to break it up and have the flasks be even
  • Flasks were left to settle overnight and checked the next day
  • Supplies were put in the autoclave in the lab to sterilize for the next day

20211112 Day 2 Cell Culture

  • Collected apple juice plate at ~9:30am, flies were placed in the morgue
  • Followed the Prepping Cell Culture Protocol
  • Used 0% FBS medium made on 20211109 and 10% FBS medium made on 20211102
  • Used Trypsin opened 20211111
  • For added sterility: after every time doing something out of the TC hood, I sprayed my gloves with ethanol before going back into the hood (centrifuges, etc.)
  • Again there was a lot of eggs, even more than the day before I thought
  • And they made a large egg pellet
  • Flasks were left to settle over the weekend before looking at them

Flasks were imaged on the following Monday
Flask from 20211111: Flask from 20211112