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CD 22

Also known as Cd 22 Immunohistochemistry Blood
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What is this test?

CD22 is expressed on B lymphocytes. It can be used as an alternative B-cell marker to CD20 or CD79a. Diagnostically, CD22 is useful to confirm B-cell lineage in malignant lymphomas. CD22, or cluster of differentiation-22, is a molecule belonging to the SIGLEC family of lectins. It is found on the surface of mature B cells and to a lesser extent on some immature B cells. Generally speaking, CD22 is a regulatory molecule that prevents the overactivation of the immune system and the development of autoimmune diseases. CD22 is a sugar binding transmembrane protein, which specifically binds sialic acid with an immunoglobulin (Ig) domain located at its N-terminus. The presence of Ig domains makes CD22 a member of the immunoglobulin superfamily. CD22 functions as an inhibitory receptor for B cell receptor (BCR) signaling.

Also known as IHC Marker CD 22 Immunohistochemistry Blood, CD 22 Count Immunohistochemistry Blood, CD 22 Count, IHC Marker CD 22.

Test Preparation

No special preparation is needed for CD 22. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing CD 22. Your doctor depending on your condition will give specific instructions.

Understanding your test results

GenderAge groupsValue
UNISEXAll age groupsTest is positive if the conditions listed are detected
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