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Immunohistochemistry (IHC) is an essential technique in cancer diagnosis, providing crucial insights into the molecular characteristics of tumors. This powerful tool helps pathologists identify specific antigens in tissue samples, offering precise information that guides treatment decisions.
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The Role of Immunohistochemistry in Cancer Diagnosis: A Step-by-Step Protocol https://ihc-prs.com/
Immunohistochemistry (IHC) is an essential technique in cancer diagnosis, providing crucial insights into the molecular characteristics of tumors. This powerful tool helps pathologists identify specific antigens in tissue samples, offering precise information that guides treatment decisions.
Immunohistochemistry Protocol: A Detailed Overview The IHC protocol begins with the preparation of tissue sections, typically from a biopsy. These sections are carefully mounted on glass slides and fixed to preserve the cellular structure. Following fixation, the tissue is treated with a blocking solution to prevent non-specific binding of antibodies, ensuring that the staining is accurate and specific. Next, the primary antibody is applied. This antibody is designed to bind specifically to the antigen of interest, such as a cancer-related protein. After incubation, a secondary antibody, which is linked to a detectable marker (often an enzyme or a fluorescent dye), is added. This secondary antibody binds to the primary antibody, amplifying the signal.
The final step in the immunohistochemistry protocol involves the visualization of the antigen-antibody complex. This is typically achieved through the application of a substrate that reacts with the marker on the secondary antibody, producing a visible color change in the tissue. Pathologists then examine the stained slides under a microscope, identifying the presence and intensity of the antigen.
Immunohistochemistry in Cancer Diagnosis In cancer diagnosis, immunohistochemistry is invaluable. It allows for the detection of specific cancer markers, such as HER2 in breast cancer or PD-L1 in lung cancer. These markers provide vital information about the type of cancer and its likely behavior, enabling tailored treatment strategies. By following a meticulous immunohistochemistry protocol, pathologists can deliver accurate and detailed cancer diagnoses, significantly improving patient outcomes.
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