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Mifamurtide

MCE China：Mifamurtide

Brand：MedChemExpress (MCE)

Cat. No.HY-13682

CAS：83461-56-7

Synonyms：MTP-PE; L-MTP-PE; CGP 19835

Purity：98.0%

Storage：-20°C, stored under nitrogen *In solvent : -80°C, 6 months; -20°C, 1 month (stored under nitrogen)

Shipping：Room temperature in continental US; may vary elsewhere.

Description：Mifamurtide (MTP-PE), an analog of the muramyl dipeptide (MDP), is a nonspecific immunomodulator by stimulating the immune response activating macrophages and monocytes. Mifamurtide is a specific ligand for NOD2 and acts as an insulin sensitizer. Mifamurtide has potential for use in rare disease and osteosarcoma research.

In Vitro：Mifamurtide (MTP-PE; 100 μM) induces a reduction of MG63 cells number when co-cultured with macrophages[3]. Mifamurtide (100 μM) increases both the M1 polarization marker iNOS and the M2 polarization marker CD206 mRNAs; both pro-inflammatory (IL-1β, IL-6) and anti-inflammatory (IL-4, IL-10) cytokines. Mifamurtide increases the iron transporter DMT1 protein[3]. L-mifamurtide (5, 5000 nM; for 48 hours) alone has no direct effect on the proliferation rate of the two osteosarcoma cell lines MOS-J and KHOS in vitro or in vivo[1]. Mifamurtide acts as a nonspecific immunomodulator by activating macrophages and monocytes related to the upregulation of tumoricidal activity and secretion of pro-inflammatory cytokines including tumor necrosis factor (TNF)-a, interleukin (IL)-1, IL-6, IL-8, IL-12, nitric oxide (NO), prostaglandin E2 (PGE2) and PGD2[3].

In Vivo：Mifamurtide (MTP-PE; 1 mg/kg; i.v.; twice per week for 4 weeks) causes a trend of diminished spontaneous lung metastasis dissemination[1]. Mifamurtide (50 μg/mouse) improves glucose tolerance during endotoxemia in mice. Mifamurtide (equivalent to 20 μg MDP; 4 times per week for 5 weeks) improves glucose tolerance in HFD-fed mice without altering body mass[2].

IC50 & Target：NOD2

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References：

[1]. Kevin Biteau, et al. L-MTP-PE and zoledronic acid combination in osteosarcoma: preclinical evidence of positive therapeutic combination for clinical transfer. Am J Cancer Res. 2016 Feb 15;6(3):677-89.  [Content Brief]

[2]. Mifamurtide: CGP 19835, CGP 19835A, L-MTP-PE, liposomal MTP-PE, MLV 19835A, MTP-PE, muramyltripeptide phosphatidylethanolamine. Drugs R D, 2008. 9(2): p. 131-5.  [Content Brief]

[3]. Joseph F Cavallari, et al. Muramyl Dipeptide-Based Postbiotics Mitigate Obesity-Induced Insulin Resistance via IRF4. Cell Metab. 2017 May 2;25(5):1063-1074.e3.  [Content Brief]

[4]. Francesca Punzo, et al. Mifamurtide and TAM-like macrophages: effect on proliferation, migration and differentiation of osteosarcoma cells. Oncotarget. 2020 Feb 18;11(7):687-698.  [Content Brief]