1. MAPK/ERK Pathway
  2. p38 MAPK
  3. PF-03715455

PF-03715455 is a potent inhaled p38 MAPK inhibitor. PF-03715455 shows some selectivity for p38α over p38β with respective IC50 values of 0.88 and 23 nM. PF-03715455 potently inhibits LPS-induced TNFα production in human whole blood (IC50=1.7 nM). PF-03715455 has potential for the treatment of COPD (chronic obstructive pulmonary disease).

For research use only. We do not sell to patients.

PF-03715455

PF-03715455 Chemical Structure

CAS No. : 1056164-52-3

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Description

PF-03715455 is a potent inhaled p38 MAPK inhibitor. PF-03715455 shows some selectivity for p38α over p38β with respective IC50 values of 0.88 and 23 nM. PF-03715455 potently inhibits LPS-induced TNFα production in human whole blood (IC50=1.7 nM). PF-03715455 has potential for the treatment of COPD (chronic obstructive pulmonary disease)[1][2].

IC50 & Target[1]

p38α

0.88 nM (IC50)

p38β

23 nM (IC50)

Cellular Effect
Cell Line Type Value Description References
PBMC IC50
0.88 nM
Compound: 1ab, PF-03715455
Antiinflammatory activity in LPS-stimulated human isolated PBMC assessed as inhibition of TNFalpha preincubated for 40 mins prior to LPS-challenge by ELISA in the presence of 5 uM ATP
Antiinflammatory activity in LPS-stimulated human isolated PBMC assessed as inhibition of TNFalpha preincubated for 40 mins prior to LPS-challenge by ELISA in the presence of 5 uM ATP
[PMID: 21888439]
PBMC IC50
1.7 nM
Compound: 1ab, PF-03715455
Antiinflammatory activity in LPS-stimulated human isolated PBMC assessed as inhibition of TNFalpha production preincubated for 1 hr prior to LPS-challenge by ELISA
Antiinflammatory activity in LPS-stimulated human isolated PBMC assessed as inhibition of TNFalpha production preincubated for 1 hr prior to LPS-challenge by ELISA
[PMID: 21888439]
PBMC IC50
8 nM
Compound: PF-3715455
Inhibition of LPS-stimulated TNFalpha release in human PBMC cells preincubated for 1 hr followed by LPS stimulation and measured after 18 hrs
Inhibition of LPS-stimulated TNFalpha release in human PBMC cells preincubated for 1 hr followed by LPS stimulation and measured after 18 hrs
[PMID: 35546685]
In Vitro

PF-03715455 is a moderate inhibitor of CYP1A2, CYP2C19, and CYP2D6 and a potent inhibitor of CYP’s 2C9 and CYP3A4[2].

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

In Vivo

PF-03715455 treatment shows that the Vss and T1/2 are 0.19 L/kg, 1 hour, respectively[2].

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

Animal Model: Male CD Sprague Dawley rats (300-450 g)[2]
Dosage: 1 mg/kg
Administration: I.v. (Pharmacokinetic Analysis)
Result: The Vss, and T1/2 were 0.19 L/kg, 1 hour, respectively.
Clinical Trial
Molecular Weight

700.27

Formula

C35H34ClN7O3S2

CAS No.
Appearance

Solid

Color

White to off-white

SMILES

CC(C)(C1=NN(C2=CC=C(O)C(Cl)=C2)C(NC(NCC3=CC=CC=C3SC4=CN5C(C6=CC=CC=C6SCCO)=NN=C5C=C4)=O)=C1)C

Shipping

Room temperature in continental US; may vary elsewhere.

Storage
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
Solvent & Solubility
In Vitro: 

DMSO : 50 mg/mL (71.40 mM; Need ultrasonic; Hygroscopic DMSO has a significant impact on the solubility of product, please use newly opened DMSO)

Preparing
Stock Solutions
Concentration Solvent Mass 1 mg 5 mg 10 mg
1 mM 1.4280 mL 7.1401 mL 14.2802 mL
5 mM 0.2856 mL 1.4280 mL 2.8560 mL
View the Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

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Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

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Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

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In Vivo Dissolution Calculator
Please enter the basic information of animal experiments:

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Calculation results:
Working solution concentration: mg/mL
Purity & Documentation
References

Complete Stock Solution Preparation Table

* Please refer to the solubility information to select the appropriate solvent. Once prepared, please aliquot and store the solution to prevent product inactivation from repeated freeze-thaw cycles.
Storage method and period of stock solution: -80°C, 6 months; -20°C, 1 month. When stored at -80°C, please use it within 6 months. When stored at -20°C, please use it within 1 month.

Optional Solvent Concentration Solvent Mass 1 mg 5 mg 10 mg 25 mg
DMSO 1 mM 1.4280 mL 7.1401 mL 14.2802 mL 35.7005 mL
5 mM 0.2856 mL 1.4280 mL 2.8560 mL 7.1401 mL
10 mM 0.1428 mL 0.7140 mL 1.4280 mL 3.5701 mL
15 mM 0.0952 mL 0.4760 mL 0.9520 mL 2.3800 mL
20 mM 0.0714 mL 0.3570 mL 0.7140 mL 1.7850 mL
25 mM 0.0571 mL 0.2856 mL 0.5712 mL 1.4280 mL
30 mM 0.0476 mL 0.2380 mL 0.4760 mL 1.1900 mL
40 mM 0.0357 mL 0.1785 mL 0.3570 mL 0.8925 mL
50 mM 0.0286 mL 0.1428 mL 0.2856 mL 0.7140 mL
60 mM 0.0238 mL 0.1190 mL 0.2380 mL 0.5950 mL
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PF-03715455 Related Classifications

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:
PF-03715455
Cat. No.:
HY-18862
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