What does it mean to be CD20 positive?

A protein found on B cells (a type of white blood cell). It may be found in higher than normal amounts in patients with certain types of B-cell lymphomas and leukemias. Measuring the amount of CD20 on blood cells may help to diagnose cancer or plan cancer treatment. CD20 is a type of tumor marker.

What does CD20 stand for?

CD20 (cluster of differentiate 20) is a protein that is expressed on the surface of B cells, starting at the pre-B cell stage and also on mature B cells in the bone marrow and in the periphery. CD20 is not expressed on hematopoietic stem cells, pro-B cells, or normal plasma cells.

Is classic Hodgkin lymphoma aggressive?

Overview of classical Hodgkin lymphoma (cHL) Hodgkin lymphoma (HL) is potentially an aggressive (or fast growing) B-cell lymphoma. HL is characterised by the presence of very large cells called Reed-Sternberg (RS) cells, although other abnormal cell types may be present.

Does Hodgkin lymphoma have CD20?

CD15 negativity with CD20 positivity was seen in 7 (7.7%) cases of otherwise typical classical Hodgkin’s Lymphoma. Conclusions/recommendations: CD20 expression is frequent in classical Hodgkin’s Lymphoma and our results are in consensus with reported literature on this subject.

What is anti CD20 therapy?

Anti-CD20 monoclonal antibodies (mAbs) are used to achieve B cell depletion, and were initially developed to treat B cell proliferative disorders, including non-Hodgkin’s lymphoma (NHL) and chronic lymphocytic leukemia (CLL).

What is a CD20 drug?

CD20 monoclonal antibodies are targeted against B-cell antigens, and are used in the treatment of B-cell Non-Hodgkin’s lymphoma.

Do plasma cells have CD20?

CD20 is a trans-membrane protein expressed on mature B cells through all stages of their development. However, its expression is down regulated at the point of differentiation into plasma cells and expressed only in 16-22% of mature plasma cells.

Is classic Hodgkin lymphoma curable?

Hodgkin lymphoma is a highly curable disease. Although most patients achieve complete response following frontline therapy, key unmet clinical needs remain including relapsed/refractory disease, treatment-related morbidity, impaired quality of life and poor outcome in patients older than 60 years.

Can classic Hodgkin’s lymphoma be cured?

Classical Hodgkin lymphoma is considered a highly curable disease; however, 20% of patients cannot be cured with standard first-line chemotherapy and have a dismal outcome. Current clinical parameters do not allow accurate risk stratification, and personalized therapies are lacking.

What are infusions for non Hodgkin’s lymphoma?

Alemtuzumab (Campath) is an antibody directed at the CD52 antigen. It is useful in some cases of SLL/CLL and some types of peripheral T-cell lymphomas. This drug is infused into a vein (IV), usually 3 times a week for up to 12 weeks. The most common side effects are fever, chills, nausea, and rashes.

What do CD20 B cells do?

Not only do they produce autoantibodies, but they regulate other cell types, secrete cytokines, and present antigens. They are thus potential targets for therapeutic intervention. CD20 is a B-cell specific cell surface molecule of uncertain function.