What are immune cells? Protect the human body from being invaded by germs

Immune cells are the general term for cells in the human body that participate in immune responses. When the body is invaded by viruses or bacteria, immune cells can recognize antigens and activate the body's immune response to protect the body from illness. Immune cells can be divided into three types: specific immune cells, non-specific immune cells and antigen-presenting cells according to different functions:

Specific immune cells: T cells, B cells

Specific immune cells include T cells and B cells, which play a memory role in the immune response. 

They can remember different antigens and make targeted immune responses to the antigens.

Non-specific immune cells: NK cells, macrophages, neutrophils, mast cells

Non-specific immune cells are the first line of defense of the human immune system. 

They can recognize a variety of antigens and destroy invading bacteria, but they cannot make specific immune responses to different antigens. Macrophages, neutrophils, NK cells, mast cells, etc. are all non-specific immune cells.

Antigen-presenting cells: dendritic cells, macrophages, B cells

Helps capture antigens in the human body, presents the antigens to T cells, and enhances the ability of T cells to recognize antigens. Dendritic cells, macrophages, and B cells can all play the role of antigen presentation.

What is the role of immune cell storage? Provide a guarantee for immune function

Human immune cells will gradually decline with age and the influence of innate genetic and acquired environmental factors. If immune cells can be stored at a young age, the health and activity of immune cells can be maintained. When immune cell therapy is required in the future, more Get immediate medical resources.