Jennifer Hoover wrote:

>  This would greatly improve our ability to confirm which cells are rat
> derived and which cells are mouse derived
> without the issue of x-reactivity which is currently a problem.   Any
> suggestions would be very much appreciated!  
> 
	Althoug not quite CD45, something you could try staining for is Thy
1.1
	It is expressed by rat and mouse cells and is detectable with MRC
OX7 and ( oh hell, i cant remember the mouse one....)

	Anyways, i have used it when looking at xenografts in the rodent
brain, and you get _wonderful_ staining effects...looks like negative
photographs!!

	Good luck anyway,
	hope this helps some (probably not, but it was worth a shot...) Give
me time, and i will remember the mouse thy 1.1...

	emma carter