Hi,
I'm working on the immunity of tumor. I injected tumor cells into the mice subcutaneously. After harvesting the tumor, I used percoll and isolated immune cells. Then I added trypan blue and counted cells using a cell counting chamber before flow cytometry staining.
I found in most of the papers, they just said "Count cells for staining". But they didn't say count which kind of cells. Because I saw there were different type of cells in the microscope.
Do I need to count all living cells, no matter how different the shape they are. Or do I just count one specific cell?
Many thanks.