Hello all,
I using formalin fixed paraffin embedded specimens from fetuses from
sheep to examine which cells are virally infected within the CNS.
I am using IBA-1 to identify microglial cells. The IBA-1 antibody is a
rabbit antibody and it works really well in my specimens.
At the same time I am also using an antibody against the virus that I
am studying that is also a rabbit Ab.
For these samples I am using double labeling to determine if cells are
infected or not.
Both antibodies work, but I can use them together otherwise there is x-
reaction.
Does anyone has any suggestions of how to label tissues with two
different antibodies that come from the same species.
On immunoportal someone suggested to use 4%PFA to fix the tissues in
between the first (primary and secondary Ab) and the second (primary
and secondary Ab), however it did not work. PFA did not block the
previously bound Abs.
The other option that I would have would be to use IBA-1 from goat. My
problem with this antibody coming from goat is that I can have x-
reaction and moderate background since goat and sheep are very closely
related.
Please, if someone has any suggestions I would immensely appreciate!
Thank you very much!
I hope you have a wonderful day!
Aline
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