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Anti-CD19 immunotoxin is a monoclonal antibody linked to a toxic substance. It is being studied in the treatment of some types of B-cell cancer. Anti-CD19 immunotoxin is made in the laboratory. It binds to CD19, a protein on the surface of normal B cells and B-cell tumors, and kills the cells.
Splenic B-cell lymphoma/leukemia unclassifiable: The rare reports on this lymphoma find the monoclonal B cells to be CD19+, CD20+ (bright, CD23+, CD11+, CD25−, CD103−, CD72+, and annexin A1−. [18] These cells, similar to the monoclonal cells in Hairy cell leukemia, [19] may have the V600E mutation in the BRAF gene. Patients with this ...
An anti-CD22 immunotoxin is a monoclonal antibody targeting CD22 linked to a cytotoxic agent. As of August 2009, it was studied in the treatment of some types of B-cell cancer. It binds to CD22, a receptor protein on the surface of normal B cells and B-cell tumors , and, upon internalization, kills the cells, acting as immunotoxin .
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The cause is typically the emergence of leukemia cells that do not express CD19 and so evade recognition by the CD19–CAR T cells, a phenomenon known as antigen escape. [33] Preclinical studies developing CAR T cells with dual targeting of CD19 plus CD22 or CD19 plus CD20 have demonstrated promise, and trials studying bispecific targeting to ...
CD22, or cluster of differentiation-22, is a molecule belonging to the SIGLEC family of lectins. [4] 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 .
CD19 has also been implicated in autoimmune diseases, including rheumatoid arthritis and multiple sclerosis, and may be a useful treatment target. [ 13 ] [ 16 ] [ 33 ] Mouse model research shows that CD19 deficiency can lead to hyporesponsiveness to transmembrane signals and weak T cell dependent humoral response , that in turn leads to an ...
12482 Ensembl ENSG00000156738 ENSMUSG00000024673 UniProt P11836 P19437 RefSeq (mRNA) NM_152866 NM_021950 NM_152867 NM_007641 RefSeq (protein) NP_068769 NP_690605 NP_690606 NP_031667 Location (UCSC) Chr 11: 60.46 – 60.47 Mb Chr 19: 11.23 – 11.24 Mb PubMed search Wikidata View/Edit Human View/Edit Mouse B-lymphocyte antigen CD20 or CD20 is B lymphocyte cell-surface molecule. It is a 33-37 ...