1. Immunology/Inflammation
  2. NOD-like Receptor (NLR) Interleukin Related
  3. NLRP3-IN-39

NLRP3-IN-39 (Compound 49) inhibits the assembly and activation of NLRP3 inflammatory vesicles. NLRP3-IN-39 exerts its inhibitory effect by covalently binding to Cys 279 of the NLRP3 protein. NLRP3-IN-39 inhibits Nigericin (HY-127019)-induced IL-1β release from THP-1 cells (IC50= 0.29 μM).

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NLRP3-IN-39 Chemical Structure

NLRP3-IN-39 Chemical Structure

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Description

NLRP3-IN-39 (Compound 49) inhibits the assembly and activation of NLRP3 inflammatory vesicles. NLRP3-IN-39 exerts its inhibitory effect by covalently binding to Cys 279 of the NLRP3 protein. NLRP3-IN-39 inhibits Nigericin (HY-127019)-induced IL-1β release from THP-1 cells (IC50= 0.29 μM)[1].

IC50 & Target

NLRP3

 

IL-1β

 

In Vitro

NLRP3-IN-39 can inhibit Nigericin-induced IL-1β release in various cell types, with IC50 values of 0.29 μM in THP-1 cells, 44.97 nM in PBMCs, and 738.8 nM in BMDMs,respectively[1].
NLRP3-IN-39 (0-1 μM; 24 h) effectively inhibits the secretion of inflammatory cytokines in THP-1 cells and BMDMs without affecting the expression of precursor proteins[1].
NLRP3-IN-39 (0-1 μM; 40 min) significantly inhibits LDH release and pyroptosis induced by NLRP3 inflammasome activation in THP-1 cells and BMDMs. In LPS-primed THP-1 cells, NLRP3-IN-3 shows a significant, concentration-dependent inhibition of nigericin-induced IL-1β release[1].
NLRP3-IN-39 (0-1 μM; 40 min) significantly inhibits LDH release and pyroptosis induced by NLRP3 inflammasome activation in THP-1 cells and BMDMs. In LPS-primed THP-1 cells, NLRP3-IN-39 shows a significant, concentration-dependent inhibition of Nigericin-induced IL-1β release[1].
NLRP3-IN-39 (1 μM; 24 h) reduces the formation of ASC oligomers and ASC specks in Nigericin-induced THP-1 cells, while this phenomenon is not observed in NLRP3 KO THP-1 cells[1].

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Western Blot Analysis[1]

Cell Line: THP-1 cells and BMDMs
Concentration: 0, 0.25, 0.5, 1 μM
Incubation Time: 24 h
Result: Inhibited the secretion of IL-1β and caspase-1 in a concentration-dependent manner in LPS/nigericin-induced THP-1 cells and BMDMs, without significantly affecting the expression of pro-IL-1β (p31), pro-caspase-1 (p45), NLRP3, and ASC.

Immunofluorescence[1]

Cell Line: THP-1 cells and BMDMs
Concentration: 0, 0.25, 0.5, 1 μM
Incubation Time: 40 min
Result: Inhibits the red fluorescence of pyroptosis in a concentration-dependent manner, showing effects similar to MCC950 (HY-12815).
In Vivo

NLRP3-IN-39 (15, 30 mg/kg; i.p.; single dose) exhibits significant anti-inflammatory effects in a DSS-induced ulcerative colitis mouse model[1].
NLRP3-IN-39 is prepared in 5% DMSO and 95% saline to a concentration of 3 mg/mL.


Pharmacokinetic Analysis in C57BL/6 male mice[1]


Route Dose (mg/kg) AUC0−t (ng·h/mL) MRT0−t (h) Tmax (h) T1/2 (h) Cmax (ng/mL) Clz/F (L/h/kg)
i.p. 30 16.75 ± 0.69 10.98 ± 0.56 0.78 ± 0.61 6.83 ± 1.17 1.57 ± 0.19 68.7 637.40 ± 136.40

MedChemExpress (MCE) has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: DSS-induced ulcerative colitis mouse model [1]
Dosage: 15, 30 mg/kg
Administration: i.p.; single dose
Result: Significantly reduced the increased thickness of colonic tissue, crypt loss, goblet cell depletion, severe mucosal damage, and severe ulcer formation.
Significantly lowered the levels of IL-1β and TNF-α in colonic tissue and inhibited the activation of caspase-1.
Molecular Weight

422.30

Formula

C21H21Cl2NO4

Unlabeled CAS

SMILES

C[C@]12[C@]([H])(C([C@@H](CC2)OC(C3=C(C=C(N=C3)Cl)Cl)=O)=C)C[C@]4([H])C(C(O[C@@]4(C1)[H])=O)=C

Shipping

Room temperature in continental US; may vary elsewhere.

Storage

Please store the product under the recommended conditions in the Certificate of Analysis.

Purity & Documentation
References
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Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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Product Name:
NLRP3-IN-39
Cat. No.:
HY-161579
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