Horus Scientific employs ASCP certified and long experienced technical staff proficient in Immunohistochemistry (IHC).

Immunohistochemistry – Immunohistochemistry (IHC) refers to the process of detecting antigens (e.g., proteins) in cells of a tissue section by using the principle of antibodies binding specifically to antigens in the tissue. IHC takes its name from the roots “immuno,” in reference to antibodies used in the procedure and “histo,” meaning tissue. Immunohistochemical staining is widely used in the diagnosis of abnormal cells such as those found in cancerous tumors. Specific molecular markers are characteristic of particular cellular events such as proliferation or cell death (apoptosis). IHC is also widely used in basic research to understand the distribution and localization of biomarkers and differentially expressed proteins in different parts of a biological tissue. Visualizing an antibody-antigen interaction can be accomplished in a number of ways. In the most common instance, an antibody is conjugated to an enzyme, such as peroxidase, that can catalyze a color-producing reaction.

Horus Scientific offers a variety of HIS services:

Diagnostic IHC – For our veterinary diagnostic services, we offer a full complement of IHC markers to phenotype lymphomas and differentiate various soft tissue tumors. 

Research IHC – We can work up (optimize) any antibody for you. We have a list of hundreds of antibodies we’ve already optimized and can suggest to you which antibodies to purchase and which ones to avoid.

New antibody optimization – If we haven’t worked up an antibody yet, we will work with you to optimize it specifically for your specimens. We will utilize a variety of pre-treatments (heat, enzyme digestion, etc.), try different titrations of the primary antibody (from “neat” to 1:10,000) at different incubation times (1 hour and overnight) to see what works the best. We can also try different fixatives, frozen sections or whatever it will take to have the antibody work on your tissue. Contact us for confirmation of optimization on your intended marker. 

Antibody Validation – Using tissue array blocks, we can also validate your antibodies on a variety of tissues and species.

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