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Ossirene (AS101)

Name: Ossirene (AS101)
Brand: Selleck Chemicals
SKU: S8301
Rating: 5 (13 reviews)

Catalog No.S8301 Purity:97%

Ossirene (AS101), a potent in vitro and in vivo immunomodulator, is a novel inhibitor of IL-1beta converting enzyme.

Ossirene (AS101) Chemical Structure

CAS No. 106566-58-9

Purity & Quality Control

Batch: Purity: >97%

Ossirene (AS101) Related Products

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Related Compound Libraries	Kinase Inhibitor Library FDA-approved Drug Library Natural Product Library Bioactive Compound Library-I Highly Selective Inhibitor Library	Click to Expand

Biological Activity

Description

Ossirene (AS101), a potent in vitro and in vivo immunomodulator, is a novel inhibitor of IL-1beta converting enzyme.

Targets

IL-1β converting enzyme ^[1]

In vitro
In vitro	Treatment of caspase-1 (interleukin-1 [IL-1] converting enzyme [ICE]) with AS101 inhibits its enzymatic activity in a dose-dependent manner. Moreover, AS101 treatment causes a significant reduction in the active form of IL-18 and IL-1 in peripheral blood mononuclear cells (PBMC) and in human HaCat keratinocytes. The inhibitory effect of AS101 does not involve nitric oxide (NO) or interferon- (IFN- ), two possible regulators of IL-18 production, and does not occur at the mRNA level. It may exert effects through a posttranscriptional mechanism^[1]. AS101 induced SIRT1 expression in a dose dependent manner in three different cell lines, HEK293, HL-60 and Rin-5f. Incubation of HEK293 and HL-60 cell lines with AS101 (0.1-2.5μg/ml) resulted in a dose dependent reduction in PPARγ protein expression relative to the control cells, and the reduction of PPARγ expression is in parallel to increased SIRT1 expression^[2].
Cell Research	Cell lines	Human peripheral blood mononuclear cells (PBMC)
	Concentrations	0.01, 0.05, 0.5, 1, 1.5, 2 μg/mL
	Incubation Time	24 h
	Method	In vitro, PBMCs were first treated with various concentrations of AS101, and after 1 h SAC (10^-3 v/v) was added. After 24 h, supernatants were collected and evaluated for cytokine content.

In Vivo
In vivo	AS101 downregulates IL-18 and IL-1 serum levels in a mouse model of lipopolysaccharide (LPS)-induced sepsis, resulting in increased survival. It has also been shown to be protective against lethal and sublethal effects of irradiation and chemotherapy. In a model of cecal ligation and puncture (CLP)-induced sepsis in mice, AS101 also exerted beneficial effects^[1]. AS101 treated rats showed a large increase in SIRT1 protein levels in the liver and kidney extracts of rats treated with AS101. AS101 prevents development of insulin resistance in vivo. AS101 affects SIRT1 related metabolic pathways by changing the insulin levels. AS101 treatment prevents hyperglycemia associated with T2D(type 2 diabetes) and some of the symptoms of the disease in the HFD(high fat diet)+STZ(Streptozotocin) rat model^[2].
Animal Research	Animal Models	c57BL/6J and BALB/c mice
	Dosages	10 μg/mouse
	Administration	i.p.

NCT Number	Recruitment	Conditions	Sponsor/Collaborators	Start Date	Phases
Clinical Trial Information (data from https://clinicaltrials.gov, updated on 2024-05-22)
NCT01943630	Unknown status	External Genital Warts	BioMAS Ltd	January 2015	Phase 2
NCT01010373	Suspended	Acute Myeloid Leukemia\|Myelodysplastic Syndrome	BioMAS Ltd	January 2015	Phase 2

References

Chemical Information & Solubility

Molecular Weight	312.05	Formula	C₂H₄Cl₃O₂Te.H₄N
CAS No.	106566-58-9	SDF	Download Ossirene (AS101) SDF
Smiles	C1CO[Te](O1)(Cl)(Cl)Cl.[NH4+]
Storage (From the date of receipt)	3 years-20°Cpowder	Storage of Stock Solutions Aliquot the stock solutions to avoid repeated freeze-thaw cycles	1 year-80°Cin solvent
Storage (From the date of receipt)	3 years-20°Cpowder		1 month-20°Cin solvent

In vitro
Batch:

DMSO : 62 mg/mL ( (198.68 mM) Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Water : Insoluble

Ethanol : Insoluble

Molecular Weight Calculator

In vivo Batch: Add solvents to the product individually and in order.				In vivo Formulation Calculator
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Homogeneous suspension	CMC-NA	≥5mg/ml	Taking the 1 mL working solution as an example, add 5 mg of this product to 1 ml of CMC-Na solution, mix evenly to obtain a homogeneous suspension with a final concentration of 5 mg/ml.
Clear solution	5%DMSO 1 40%PEG300 2 5%Tween80 3 50%ddH2O Validated by Selleck labs. Should you need adjustments to this formulation, contact our sales team for custom testing.	0.200mg/ml (0.64mM)	Taking the 1 mL working solution as an example, add 50 μL 4 mg/ml clarified DMSO stock solution to 400 μL PEG300, mix evenly to clarify it; add 50 μL Tween80 to the above system, mix evenly to clarify it; then continue to add 500 μL ddH2O to adjust the volume to 1 mL. The mixed solution should be used immediately for optimal results.

Preparing Stock Solutions

Molarity Calculator

Mass	Concentration	Volume	Molecular Weight
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Dilution Calculator Molecular Weight Calculator

In vivo Formulation Calculator (Clear solution)

Step 1: Enter information below (Recommended: An additional animal making an allowance for loss during the experiment)

Dosage: mg/kg Average weight of animals: g Dosing volume per animal:μL Number of animals:

Step 2: Enter the in vivo formulation (This is only the calculator, not formulation. Please contact us first if there is no in vivo formulation at the solubility Section.)

% DMSO + % + % Tween 80 + % ddH₂O

%DMSO+ %

Calculation results:

Working concentration: mg/ml;

Method for preparing DMSO master liquid: mg drug pre-dissolved in μL DMSO ( Master liquid concentration mg/mL, Please contact us first if the concentration exceeds the DMSO solubility of the batch of drug. )

Method for preparing in vivo formulation: Take μL DMSO master liquid, next addμL PEG300, mix and clarify, next addμL Tween 80, mix and clarify, next add μL ddH₂O, mix and clarify.

Method for preparing in vivo formulation: Take μL DMSO master liquid, next add μL Corn oil, mix and clarify.

Note: 1. Please make sure the liquid is clear before adding the next solvent.
2. Be sure to add the solvent(s) in order. You must ensure that the solution obtained, in the previous addition, is a clear solution before proceeding to add the next solvent. Physical methods such
as vortex, ultrasound or hot water bath can be used to aid dissolving.

Tech Support

Answers to questions you may have can be found in the inhibitor handling instructions. Topics include how to prepare stock solutions, how to store inhibitors, and issues that need special attention for cell-based assays and animal experiments.

Handling Instructions

Tel: +1-832-582-8158 Ext:3
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