Hi Cathy, When I was doing work with NHP tissue (both flow cytometry and IHC) there were several sources that I utilized for info on antibodies that were cross-reactivity with various NHP species. The NIH hosts a NHP reagent resource website (nhpreagents.org) that shows which commercially available antibodies cross react with non-human primate tissues. They note that there are discrepancies reported about cross-reactivity with the QBEND10 antibody for rhesus and possibly cynos. You will need to still check with the vendors to confirm if the antibody has been tested in FFPE specimens as that is not indicated on the site but it should give you a starting point to work from.
I've had personal experience with cyno & rhesus T cells where individual monkeys would not react with certain anti-human antibodies. For example, I had a couple of research animals that were negative for a CD3 antibody but yet they stained with CD4 and CD8 antibodies. Good luck! Denise -- [image: Powered by Sigstr] <https://rochediagnostic.sigstr.net/uc/56dd9d91825be9040100000b/watermark>*Denise A Croix, Ph.D.* Pathology Solutions Specialist - PD-L1 SP142 Assay Roche Diagnostics Corporation Tissue Diagnostics Division 972-207-7305 denise.cr...@roche.com www.ventana.com [image: Powered by Sigstr] <https://rochediagnostic.sigstr.net/uc/56dd9d91825be9040100000b/watermark> <https://rochediagnostic.sigstr.net/uc/56dd9d91825be90401000032> [image: Powered by Sigstr] <https://rochediagnostic.sigstr.net/uc/56dd9d91825be90401000032/watermark> _______________________________________________ Histonet mailing list Histonet@lists.utsouthwestern.edu http://lists.utsouthwestern.edu/mailman/listinfo/histonet