RBC

Mitapivat (PKR-IN-1), also known as PKM2 activator 1020 is a PKM2 activator (pyruvate kinase activator) for the treatment of pyruvate kinase deficiency.

Globotetraosylceramides are bioactive neutral glycosphingolipids. They are the major glycolipids in human erythrocytes. They act as receptors for the Shiga toxins Stx1, Stx2, and Stx2e, the cytotoxic protein pierisin-1, and parvovirus B19. Globotetraosylceramides increase the expression of proteins responsible for enamel deposition, including ameloblastin, amelogenin, and enamelin, in dental epithelial cells and activate the ERK and p38 MAPK signaling pathways. Levels of globotetraosylceramides are elevated in fibroblasts from patients with salt and pepper syndrome, a neurocutaneous condition characterized by intellectual disability and hyper- and hypo-pigmented skin. Globotetraosylceramides (porcine RBC) contains a mixture of globotetraosylceramides with variable fatty acyl chain lengths isolated from porcine red blood cells.

Lactosylceramide (LacCer) (porcine RBC) is an endogenous bioactive sphingolipid that plays a crucial role in mediating innate immune functions.

RBC8 is a specific GTPases RalA RalB inhibitor by inhibiting the binding of Ral to its effector RALBP1, no inhibition on the GTPases RhoA and Ras.

RBC10 inhibits the binding of Ral to its effector RALBP1, as well as inhibiting Ral-mediated cell spreading of murine embryonic fibroblasts and anchorage-independent growth of human cancer cell lines.

RBC6 is an inhibitor of the binding of Ral to its effector RALBP1.

Peldesine (BCX 34) is an effective, competitive, reversible, and orally active inhibitor of purine nucleoside phosphorylase. Peldesine inhibits T-cell proliferation with an IC50 of 800 nM. Peldesine can be used in research on cutaneous T-cell lymphoma, psoriasis and HIV infection.

Digitonin is a natural product of the glycoside family and is a detergent. Digitonin has antitumor activity, binds to cholesterol molecules to increase the permeability of cell membranes, and is active in the cleavage of cell membranes in a wide range of cells.

Senicapoc (ICA-17043) is a potent inhibitor of the Gardos channel that ameliorates RBC dehydration in the SAD mouse. It blocks Ca2+-induced rubidium flux from human RBCs with an IC50 value of 11 ± 2 nM (CLT IC50 = 100 ± 12 nM) and inhibits RBC dehydration with an IC50 of 30 ± 20 nM. Senicapoc is used in the treatment of Sickle Cell Disease and Sickle Cell Anemia.

1. Columbin has anti-inflammatory activity. 2. Columbin has chemopreventive ability against human colon cancer. 3. Columbin inhibits PLA2 hydrolysis of ghost RBC in a dose-dependent fashion.

Peldesine (BCX 34) dihydrochloride is a potent, competitive, reversible, and orally active inhibitor of purine nucleoside phosphorylase (PNP), with IC50 values of 36 nM, 5 nM, and 32 nM against human, rat, and mouse red blood cell (RBC) PNP, respectively. Additionally, it inhibits T-cell proliferation with an IC50 of 800 nM, showing promise for research into cutaneous T-cell lymphoma, psoriasis, and HIV infection [1] [2] [3] [4].

Ligufalimab (AK 117), a humanized IgG4 monoclonal antibody targeting CD47, does not lead to red blood cell (RBC) hemagglutination but promotes phagocytosis and exhibits anti-tumor activity [1].