Date published: 2025-12-18

1-800-457-3801

SCBT Portrait Logo
Seach Input

MKP-1 Inhibitors

Mitogen-activated protein kinase phosphatase-1 (MKP-1), also known as dual specificity phosphatase 1 (DUSP1), is a crucial enzyme in cellular signaling processes. It belongs to the dual-specificity phosphatase (DUSP) family, which is characterized by its ability to dephosphorylate both threonine and tyrosine residues on target proteins. Specifically, MKP-1 serves as a negative regulator of the mitogen-activated protein kinase (MAPK) signaling pathways, including the extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38 MAPK pathways. By dephosphorylating and inactivating these MAPKs, MKP-1 plays a pivotal role in controlling cellular responses to various stimuli and stressors, such as inflammation, oxidative stress, and growth factors. MKP-1 inhibitors are chemical compounds designed to attenuate the activity of MKP-1, thereby modulating the MAPK signaling pathways. Given the central role of MKP-1 in numerous cellular processes, its inhibition can lead to enhanced or prolonged MAPK signaling, which can have profound effects on cell proliferation, differentiation, survival, and stress responses. The development of MKP-1 inhibitors often requires intricate knowledge of the enzyme's structure, substrate specificity, and regulatory mechanisms. These inhibitors typically target the active site of MKP-1 or interfere with its interaction with MAPKs, thereby preventing the dephosphorylation and inactivation of the kinases.

Items 1 to 10 of 13 total

Display:

Product NameCAS #Catalog #QUANTITYPriceCitationsRATING

Triptolide

38748-32-2sc-200122
sc-200122A
1 mg
5 mg
$88.00
$200.00
13
(1)

Triptolide has been shown to suppress MKP-1 expression, potentially by inhibiting the activation of NF-kB and AP-1 transcription factors.

Sanguinarine chloride

5578-73-4sc-202800
5 mg
$184.00
4
(2)

Sanguinarine chloride exhibits unique properties as an MKP-1 inhibitor, engaging in selective binding with phosphatase enzymes. Its structural conformation allows for specific interactions that modulate signaling pathways, influencing cellular responses. The compound's ability to form stable complexes with target proteins enhances its efficacy, while its amphiphilic nature promotes interactions with lipid membranes, facilitating cellular entry and subsequent biochemical effects. This dynamic behavior underscores its role in cellular regulation.

NSC 95397

93718-83-3sc-203654
sc-203654A
10 mg
50 mg
$250.00
$830.00
9
(1)

NSC 95397 functions as an MKP-1 inhibitor, characterized by its ability to disrupt phosphatase activity through competitive binding. Its unique molecular architecture enables it to engage in specific hydrogen bonding and hydrophobic interactions, influencing downstream signaling cascades. The compound's reactivity as an acid halide allows for the formation of covalent adducts with nucleophilic residues, enhancing its specificity and potency in modulating cellular processes. This intricate interplay of interactions highlights its role in biochemical regulation.

Dexamethasone

50-02-2sc-29059
sc-29059B
sc-29059A
100 mg
1 g
5 g
$76.00
$82.00
$367.00
36
(1)

Dexamethasone can reduce MKP-1 expression in certain cells. It may act by modulating glucocorticoid receptor signaling which intersects with MAPK pathways.

SB 203580

152121-47-6sc-3533
sc-3533A
1 mg
5 mg
$88.00
$342.00
284
(5)

SB203580 is a p38 MAPK inhibitor that may indirectly down-regulate MKP-1 by affecting its upstream pathways.

SP600125

129-56-6sc-200635
sc-200635A
10 mg
50 mg
$40.00
$150.00
257
(3)

SP600125 is a JNK inhibitor. Given the relationship between JNK and MKP-1, inhibiting JNK can modulate MKP-1 levels.

LY 294002

154447-36-6sc-201426
sc-201426A
5 mg
25 mg
$121.00
$392.00
148
(1)

LY294002 is a PI3K inhibitor which might decrease MKP-1 expression by inhibiting PI3K-Akt pathway that regulates MKP-1.

Sorafenib

284461-73-0sc-220125
sc-220125A
sc-220125B
5 mg
50 mg
500 mg
$56.00
$260.00
$416.00
129
(3)

Sorafenib, a kinase inhibitor, may suppress MKP-1 expression by targeting multiple kinases that are upstream regulators of MKP-1.

U-0126

109511-58-2sc-222395
sc-222395A
1 mg
5 mg
$63.00
$241.00
136
(2)

U0126 is an MEK inhibitor which might down-regulate MKP-1 expression by affecting the ERK pathway.

Curcumin

458-37-7sc-200509
sc-200509A
sc-200509B
sc-200509C
sc-200509D
sc-200509F
sc-200509E
1 g
5 g
25 g
100 g
250 g
1 kg
2.5 kg
$36.00
$68.00
$107.00
$214.00
$234.00
$862.00
$1968.00
47
(1)

Curcumin may down-regulate MKP-1 expression by modulating NF-kB and AP-1 transcription factors, which are involved in MKP-1 regulation.