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Ossirene

Ossirene (AS101), an immunomodulatory tellurium compound, is a potent IL-1β inhibitor[1]. Ossirene abolishes phosphorylation of STAT3 by inhibiting IL-10. Ossirene potently inhibits Caspase-1 and is used for the autoimmune diseases and certain malignancies[2][3][4].

Product Specifications

CAS Number

106566-58-9

Product Name Alternative

AS101

UNSPSC

12352005

Hazard Statement

H302, H315, H319, H335

Target

Caspase; Interleukin Related

Type

Reference compound

Related Pathways

Apoptosis; Immunology/Inflammation

Applications

COVID-19-immunoregulation

Field of Research

Cancer; Inflammation/Immunology

Assay Protocol

https://www.medchemexpress.com/ossirene.html

Purity

98.0

Solubility

DMSO : 12.5 mg/mL (ultrasonic; warming; heat to 60°C)

Smiles

[Cl-][Te+4]1([Cl-])([Cl-])[O-]CC[O-]1.[NH4+]

Molecular Formula

C2H8Cl3NO2Te

Molecular Weight

312.05

Precautions

H302, H315, H319, H335

References & Citations

[1]Sredni B, et al. Ammonium trichloro (dioxoethylene-o, o') tellurate (AS101) sensitizes tumors to chemotherapy by inhibiting the tumor interleukin 10 autocrine loop. Cancer Res. 2004 Mar 1;64 (5) :1843-52.|[2]Yona Kalechman, et al. Inhibition of interleukin-10 by the Immunomodulator AS101 Reduces Mesangial Cell Proliferation in Experimental Mesangioproliferative Glomerulonephritis: Association With Dephosphorylation of STAT3. J Biol Chem. 2004 Jun 4;279 (23) :24724-32.|[3]Diamond Ling, et al. The Tellurium Redox Immunomodulating Compound AS101 Inhibits IL-1β-activated Inflammation in the Human Retinal Pigment Epithelium. Br J Ophthalmol. 2013 Jul;97 (7) :934-8.|[4]Yafit Hachmo, et al. The Small Tellurium Compound AS101 Ameliorates Rat Crescentic Glomerulonephritis: Association With Inhibition of Macrophage Caspase-1 Activity via Very Late Antigen-4 Inactivation. Front Immunol. 2017 Mar 7;8:240.

Shipping Conditions

Blue Ice

Storage Conditions

-20°C (Powder, stored under nitrogen)

Scientific Category

Reference compound1

Clinical Information

Phase 2

Isoform

Caspase 1; IL-1; IL-10; IL-6; IL-8

Available Sizes

Frequently Asked Questions

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