What Are Cytotoxic Cells? Defining Cytotoxic Cells

What are cytotoxic cells?

Cytotoxic cells are a type of immune cell that can identify and destroy infected or abnormal cells in the body.

How do cytotoxic cells work?

Cytotoxic cells recognize specific markers on the surface of abnormal cells and create molecules designed to kill them.

What types of cytotoxic cells are there?

There are two main types of cytotoxic cells: natural killer cells (NK cells) and cytotoxic T cells (CD8+ T cells).

What is the difference between NK cells and cytotoxic T cells?

NK cells can quickly recognize and kill infected or abnormal cells without prior exposure to them, while cytotoxic T cells require prior activation and can only recognize cells that have been presented with specific antigens.

How do cytotoxic cells contribute to allergies?

The activation of cytotoxic cells and their release of toxic substances can lead to tissue damage and inflammation, which can exacerbate allergic reactions.

How do cytotoxic cells contribute to autoimmune disorders?

Cytotoxic cells can attack healthy cells in the body, leading to tissue damage and autoimmune disorders.

Can cytotoxic cells be involved in severe allergic reactions?

Yes, cytotoxic cells can release toxic substances that can worsen symptoms in severe allergic reactions, such as anaphylaxis.

How are cytotoxic cells related to asthma?

Cytotoxic cells can cause inflammation in the airways, contributing to the development and worsening of asthma symptoms.

What role do cytotoxic cells play in contact dermatitis?

Cytotoxic cells can cause skin inflammation and damage in contact dermatitis, a type of allergic skin reaction.