We are having troubles with contamination in our primary cell cultures of neurons. I have been working with cell cultures for more than 7 years and I’ve never faced a contamination. The interesting part is that only our neurons culture get contaminated; our glial cells are always safe. For culturing neurons we use Neurobasal-A (Gibco 10888-022) supplemented with 1% antibiotics/antimycotic (Gibco 15240-062) and for culturing glia cells, we use DMEM. In our last experiment, we increased antibiotics/antimycotic concentration for 2%, but we still had contamination in some wells of the cell culture plate (with bacteria and fungi). What may be happening? Do you have some advice for us?
This question is part of the following Ask The Expert session:
Antibiotics in Cell Culture – What types are available and when and how to utilize them
Answered by:
Answer
So I have some questions. For your neuron growth do you add serum to your Neurobasal A medium and do you use a feeder layer for growth or coat the wells?. I guess the question is what is different about your two cultures. I assume both cell types are isolated from the same tissue at the same time?