Multiple choice

Macrophages are the body's first line of defense and have many roles.The protein present on the surface of macrophages is

  1. calnexin

  2. galectins

  3. calreticulin

  4. sialoadhesin
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sialoadhesin is a cell adhesion molecule found on the surface of certain cells of the immune system called macrophages. It is found in especially high amounts on macrophages of the spleen, liver, lymph node, bone marrow, colon, and lungs. Also, in patients suffering from rheumatoid arthritis, the protein has been found in great amounts on macrophages of the affected tissues.

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