What is CD19 Lymphs?
What is CD19 Lymphs?
– CD19 is a biomarker for B cell development, lymphoma diagnosis and therapy. Lymphoma is a group of blood cancers that develop from lymphocytes. – CD19 plays a large role in regulating B-cell growth. – CD19 is a biomarker for normal and neoplastic B cells, as well as follicular dendritic cells.
What is a normal CD19 count?
Reference Range
0-3 mo | 12-18 yr | |
---|---|---|
CD3 | 2500-5500 | 1000-2200 |
CD19 | 300-2000 | 110-570 |
CD16/56 | 170-1100 | 70-480 |
CD3/CD4 | 1600-4000 | 530-1300 |
What does lack of CD19 mean?
Both CD21 and CD19 deficiencies cause hypogammaglobulinemia and reduced memory B cells. CD19 deficiency causes a more severe clinical phenotype. B-cell characteristics reflect this, both after in vitro stimulation as in affinity maturation.
What is the function of CD19 B cells?
Physiological function. CD19 is critically involved in establishing intrinsic B cell signaling thresholds through modulating both B cell receptor (BCR)-dependent and independent signaling [16, 17]. It plays roles in the antigen-independent development as well as the immunoglobulin-induced activation of B cells.
Is CD19 a tumor associated antigen?
Unlike cancers such as ALL or CLL in which the tumor cells universally express the B-cell marker CD19, solid tumors rarely express one tumor specific antigen.
What is B cell lymphoma?
B-cell lymphoma is a type of non-Hodgkin lymphoma that originates in the B-cells. It is the most common type of lymphoma and about 85% of all lymphomas in the United States are B-cell.
What does CD stand for in immunology?
cluster of differentiation
CD (cluster of differentiation) Ags are cell surface molecules expressed on leukocytes and other cells relevant for the immune system.