I am growing epithelial cells on transwells at ALI. I want to measure the ROS production in response to exposure to cigarette smoke. I was wondering if the following would be an ideal procedure:

  • Serum starve cells 24h prior to cigarette exposure
  • Pre-incubate the cells with DCFDA loaded in DMEM (colourless without FBS) for 30 min
  • Wash the cells with DPBS
  • Expose to Cigarette smoke
  • Trypsinize the cells from transwells immediately and transfer into a 96 well plate 
  • Read in a fluorescence plate reader
  • Any suggestions/recommendations to the protocol?

    Also, does the DPBS used in washing need to contain Mg+ and Ca+ compulsorily?

    Even if people have not worked with cells on Transwells, I would be happy to hear about people's experience of working with DCFDA.

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