Definition

1. Noun:
   • A substance that partly or completely destroys animal cells: A cytolysin is a chemical agent or toxin capable of causing the lysis (rupture and destruction) of animal cells by damaging their cell membranes.

Examples of Usage

• Noun:
  • The bacterium produces a potent cytolysin that damages red blood cells.
  • Researchers are studying the mechanism of action of this new cytolysin.
  • The venom's primary toxic component is a cytolysin that targets muscle cells.

Advanced Usage

• Scientific Context: In immunology and microbiology, "cytolysin" often refers to specific proteins, such as perforin released by immune cells or toxins produced by pathogens like bacteria.
  • Perforin is a cytolysin crucial for the cytotoxic activity of T-cells.
• As a count noun: It can be used in both singular and plural forms when referring to different types.
  • Several distinct cytolysins have been identified in the venom of that species.

Variants and Related Words

• Cytolysis (n): The event or process of cell destruction or dissolution.
  • The cytolysis was observed under the microscope.
• Cytolytic (adj): Describing something that causes or relates to cytolysis.
  • The drug has a cytolytic effect on the tumor cells.
• Hemolysin (n): A specific type of cytolysin that targets and destroys red blood cells (erythrocytes).
  • Streptolysin O is a bacterial hemolysin.

Synonyms

• Cell-lysing agent
• Cytotoxin (Note: This is a broader term for any substance toxic to cells; not all cytotoxins are specifically cytolysins, but many cytolysins are considered cytotoxins.)

Related Phrases and Compounds

• Pore-forming cytolysin: A common subclass that works by creating pores in the cell membrane.
  • The toxin is a pore-forming cytolysin.
• Cytolysin activity: Refers to the functional capability to lyse cells.
  • They measured the cytolysin activity of the sample.

Noun

1. a substance that partly or completely destroys animal cells