The word "immunohistochemical" is spelled with the prefix "immuno-", meaning immune, followed by "histo-", meaning tissue, and "chemical", indicating the use of chemicals to detect specific molecules in tissue samples. The IPA phonetic transcription of "immunohistochemical" is /ˈɪmjʊnoʊhɪstəˌkɛmɪkəl/, and understanding this transcription can help with proper pronunciation and spelling of the word. This term is often used in medical and scientific research to describe techniques used to detect specific proteins or antigens in tissue samples.
The term "immunohistochemical" refers to a scientific technique used in pathology and research to detect and visualize specific proteins or antigens within tissue samples. It combines the principles of immunology and histology, making it an essential tool in the field of medicine and biomedical research.
Immunohistochemical staining involves the use of labeled antibodies that selectively bind to the target protein or antigen of interest within the tissue specimen. These labeled antibodies are usually made from animal sources or produced using recombinant DNA technology. They are specifically designed to recognize and bind to the target protein, allowing for its identification and localization within the tissue.
The process begins by treating the tissue sample with fixatives and embedding it in paraffin or freezing it in a cryoprotectant. Thin sections of the tissue are then placed on glass slides, and the target protein is exposed by removing any barriers such as cell membranes. The sample is then incubated with the primary antibody, followed by a secondary antibody conjugated to a detectable marker, such as an enzyme or a fluorescent dye. The bound antibodies can be visualized using a variety of microscopy techniques, providing detailed information about the distribution and localization of the target protein within the tissue.
Overall, immunohistochemical techniques play a crucial role in diagnosing diseases, identifying specific cell types, investigating molecular pathways, and studying the progression of various conditions. It enables scientists and pathologists to gain valuable insights into the cellular and molecular mechanisms underlying diseases and helps guide treatment strategies.
The word "immunohistochemical" comes from the combination of three components: immunology, histology, and chemistry.
1. "Immuno-" is derived from the Greek word "immunos", meaning "exempt", "free", or "protected". It is often associated with the immune response of the body to foreign substances, such as pathogens or antigens.
2. "Histo-" comes from the Greek word "histos", which means "tissue". In the medical context, "histo-" refers to the study of the microscopic structure of tissues and organs and their cells.
3. "-chemical" is the suffix indicating the involvement of chemistry. In this context, it signifies that the techniques and processes used involve the use of chemicals.