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CD38 (cluster of differentiation 38), also known as cyclic ADP ribose hydrolase, is a glycoprotein ... which becomes the major cause of NAD+ depletion with age.
Daratumumab binds to a different CD38 epitope amino-acid sequence than does the anti-CD38 monoclonal antibody isatuximab. [21] Daratumumab binds to CD38, causing cells to apoptose via antibody-dependent cellular cytotoxicity , complement-dependent cytotoxicity , inhibition of mitochondrial transfer or antibody-dependent cellular phagocytosis .
Isatuximab, sold under the brand name Sarclisa, is a monoclonal antibody (mAb) medication for the treatment of multiple myeloma. [6] [4]The most common side effects include neutropenia (low levels of neutrophils, a type of white blood cell), infusion reactions, pneumonia (infection of the lungs), upper respiratory tract infection (such as nose and throat infections), diarrhoea and bronchitis ...
Human LLPC population can be identified as CD19 – CD38 hi CD138 + cells. [17] The long-term survival of LLPC are dependent on a specific environment in the bone marrow, the plasma cell survival niche. [18] Removal of an LLPC from its survival niche results in its rapid death.
MDSC depletion restored the function of impaired hepatic NK cells. An MDSC derived from chronic inflammation caused T and NK-cell dysfunction along with downregulation of the TCR z chain (CD247). The immunosuppressive milieu directly affects CD247, which is crucial in initiating immune responses.
CD19 is widely expressed during all phases of B cell development until terminal differentiation into plasma cells. During B cell lymphopoiesis, CD19 surface expression starts during immunoglobulin (Ig) gene rearrangement, which coincides during B lineage commitment from hematopoietic stem cell. [8]