opsonize
Definition
Verb: * To make a microorganism or other foreign cell more susceptible to being engulfed and destroyed by phagocytes (a type of white blood cell). This is a biological process where antibodies or complement proteins coat the surface of a pathogen, marking it for destruction by the immune system.
Usage
The verb "opsonize" is used specifically in immunology and microbiology. It describes a key defensive action of the immune system. The target (the cell being coated) is the direct object.
* Structure: Antibodies + opsonize + target cells.
* Voice: It is most commonly used in the passive voice (are opsonized) because the focus is often on the fate of the pathogen.
Examples
- Specific antibodies bind to the surface of bacteria to opsonize them.
- Once opsonized, the yeast cells were rapidly ingested by macrophages.
- The complement system can opsonize pathogens independently of antibodies.
- Encapsulated bacteria have evolved mechanisms to avoid being opsonized.
Advanced Usage
- Conceptual Use: The term can be used more broadly to describe the principle of marking a target for elimination.
- In a business analogy, the audit report effectively opsonized the inefficient department, making it a target for restructuring.
Variants and Related Words
- Opsonization (noun): The process or result of opsonizing.
- Opsonization is a critical step in the immune response.
- Opsonin (noun): The substance (e.g., antibody, complement protein) that carries out opsonization.
- IgG is a major opsonin in the bloodstream.
Synonyms
- Tag (in a general, non-technical sense)
- Mark (in a general, non-technical sense)
- Sensitize (in a specific immunological context)
Antonyms
- Protect (from phagocytosis)
- Shield (from immune recognition)
Verb
-
make (cells) more susceptible to the action of phagocytes
