p38β

p38α inhibitor 4 is a selective MAPK p38α inhibitor, which is used to study diabetes, pain and chronic inflammation.

p38 MAPK inhibitor is a potent inhibitor of p38 MAP kinase (IC50 = 35 nM). It inhibits senescence induced by the oncogene RAS.

p38 MAPK inhibitor IV is an ATP-competitive inhibitor of p38 MAP kinases with IC50 values of 0.13, 0.55, 5.47, and 8.63 μM for p38α, p38β, p38x, and p38δ, respectively, in vitro.[1] It also inhibits LPS-induced TNF-α and IL-1β cytokine production (IC50s = 22 and 44 nM, respectively) in human peripheral blood mononuclear cells.

p38 MAPK-IN-2 is a potent inhibitor of p38 kinase.

p38 MAPK-IN-3 (Compound 2c) is a potent inhibitor of p38α MAPK, exhibiting antitumor properties through the promotion of apoptosis and the enhancement of reactive oxygen species (ROS) production [1].

P38α Inhibitor 2, a potent and selective inhibitor of p38α MAPK, exhibits a pIC50 value of 9.6. It also demonstrates inhibition of the hERG ion channel (IC50=27 μM) and maintains promising selectivity, with <30% inhibition across a panel of 51 protein kinases at a 10 μM concentration and a broad specificity against 141 other biological targets[1].

p38 MAPK-IN-1 displays sustained levels, low clearance, and good bioavailability. p38 MAPK-IN-1 is a novel effective and selective inhibitor of p38 MAPK (IC50: 68 nM).

p38 MAP Kinase Inhibitor Ⅵ is a potent p38 MAP Kinase inhibitor with anti-inflammatory activity.

ERK2 p38α MAPK-IN-1 (Compound 1, In silico Hit-2), a selective inhibitor of ERK2 and p38α MAPK, exhibits potent activity with an IC 50 of 82 μM against ERK2. It uniquely binds to the allosteric sites of both ERK2 and p38α MAPK. This compound is utilized for type 2 diabetes research [1].

PLK1/p38γ-IN-1 (compound 14) serves as a dual inhibitor targeting both PLK1 and p38γ kinases, effectively suppressing the proliferation of human hepatocellular carcinoma and hepatoblastoma cell lines in vitro [1].

p38 Kinase Inhibitor 5 (AA6) is a powerful inhibitor of p38 kinase, exhibiting an IC50 of 403.57 nM. This compound demonstrates significant anti-inflammatory activity [1].

Compound 135, also known as p38 Kinase Inhibitor 4, is a potent inhibitor of p38 [1].

p38α inhibitor 3 is a inhibitor of the mitogen-activated protein kinase p38α that can block the effectiveness of myoblast differentiation.

(S)-p38 MAPK inhibitor III is a methylsulfanylimidazole that inhibits p38 MAP kinase (IC50 = 0.90 μM in vitro). It is cell-permeable, potently blocking the release of TNF-α and IL-1β from human peripheral blood mononuclear cells (IC50s = 0.37 and 0.044 μM, respectively).

VX-702 is a highly specific p38α MAPK inhibitor, 14-fold higher selectivity for the p38α than p38β. VX-702 is a small molecule investigational oral anti-cytokine therapy for treatment of inflammatory diseases, specifically rheumatoid arthritis (RA).

AL 8697 is a selective p38α MAPK inhibitor (IC50 = 6 nM) with 14-fold selectivity over p38β (IC50 = 82 nM) and 300-fold selectivity over a panel of 91 kinases. AL 8697 has anti-inflammatory activity.

SR-318 is a potent and highly selective inhibitor of p38 MAPK, demonstrating IC50 values of 5 nM for p38α, 32 nM for p38β, and 6.11 μM for p38α β. It possesses both anti-cancer and anti-inflammatory activity.

Talmapimod (SCIO-469) is a selective, orally active, ATP-competitive p38α inhibitor with IC50 values of 9 nM for p38α and 90 nM for p38β. Talmapimod exhibits at least 2000-fold selectivity over a panel of 20 kinases, including other MAPKs.

TAK-715 is a p38 MAPK inhibitor for p38α.

SB 202190 (FHPI) is a p38 MAPK inhibitor that inhibits p38α and p38β2 (IC50=50/100 nM) selectively and cell-permeably. SB 202190 has antitumor activity and also induces the differentiation of human embryonic stem cells into cardiomyocytes.

Losmapimod (GSK-AHAB) (GW856553X; SB856553; GSK-AHAB) is a specific, potent, and orally active p38 MAPK inhibitor (pKi: 8.1 7.6 for p38α β).

SD-169 (SD 169) is a selective and ATP competitive the MAP kinases p38α and p38β inhibitor.

Neflamapimod (VX-745) , a specific and effective inhibitor of p38α(IC50=10 nM), is 22-fold greater specificity against p38β and no inhibition activity to p38γ.

RWJ-67657 (JNJ 3026582) is an orally active, selective p38α and p38β MAPK inhibitor (IC50s: 1 and 11 μM, respectively), with no activity at p38γ and p38δ, and demonstrates cardioprotective effects.

R1487 Hydrochloride (R1487 (Hydrochloride)) is an orally bioavailable and highly selective inhibitors of p38α.

SB 239063 (SB239063) is a potent and selective p38 MAPKα β inhibitor with IC50 of 44 nM, showing no activity against the γ- and δ-kinase isoforms.

NR-7h is a potent and selective degrader of p38α and p38β, exhibiting DC50 values of 24 nM for p38α in T47D cells and 27.2 nM in MB-MDA-231 cells, respectively [1].

AMG-548 dihydrochloride is a selective, orally active p38α inhibitor with a Ki value of 0.5 nM, a slight selectivity for p38β (Ki=36 nM) and >1000-fold selectivity for p38γ and p38δ. AMG-548 dihydrochloride exhibits inhibition of whole blood LPS-stimulated TNFα with an IC50 value of 3 nM. AMG-548 dihydrochloride directly inhibited casein kinase 1 isoforms δ and ε, and inhibited Wnt signaling.

AMG-548 hydrochloride is a selective, orally active p38α inhibitor with a Ki value of 0.5 nM, a slight selectivity for p38β (Ki=36 nM) and a 1000-fold selectivity for p38γ and p38δ. AMG 548 hydrochloride also effectively inhibits whole blood LPS-stimulated TNFα with an IC50 value of 3 nM. AMG-548 hydrochloride directly inhibited casein kinase 1 isoforms δ and ε, which in turn inhibited Wnt signaling.

P38-α MAPK-IN-5 is a potent inhibitor of p38α, demonstrating inhibitory concentrations (IC50) of 0.1 nM for p38α, 0.2 nM for p38β, 944 nM for p38γ, and 4100 nM for p38δ. It exhibits anti-inflammatory properties and holds potential for research in asthma and chronic obstructive pulmonary disease (COPD).

Potent and selective p38α and p38β degrader (DC50 < 50 nM). Displays no significant degradation of p38γ, p38δ, JNK1/2 or ERK1/2. Inhibits phosphorylation of MK2 in UV-treated cancer cells and LPS-stimulated bone marrow-derived macrophages (BMDM). Exhibits similar effect to p38α gene knockout in BBL358 cells. Active in vivo.

AMG-548 hydrochloride is an orally active and selective p38α inhibitor (Ki: 0.5 nM) and shows slightly selective over p38β (Ki: 36 nM) and >1000 fold selective against p38γ/p38δ. It is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50: 3 nM).

AMG-548 dihydrochloride is an orally active and selective p38α inhibitor (Ki: 0.5 nM) and shows slightly selective over p38β (Ki: 36 nM) and >1000 fold selective against p38γ/p38δ. It is also extremely potent in the inhibition of whole blood LPS stimulate

Pamapimod (R1503) (R-1503, Ro4402257) is a novel, selective inhibitor of p38 mitogen-activated protein kinase. It inhibits p38α and p38β enzymatic activity with IC50 values of 0.014±0.002 and 0.48± 0.04 microM, respectively with no activity against p38delta or p38 gamma isoforms.

(aS)-PH-797804 is a selective inhibitor of p38 MAPK, demonstrating inhibitory concentration (IC50) values of 26 nM for p38α and 102 nM for p38β. This compound exhibits anti-inflammatory activity [1] [2].

UM-164 (DAS-DFGO-II), a highly potent c-Src inhibitor with a dissociation constant (Kd) of 2.7 nM, also effectively inhibits p38α and p38β.

PF-03715455 potently inhibits LPS-induced TNFα production in human whole blood (IC50=1.7 nM). PF-03715455 is an effective inhibitor of inhaled p38 MAPK. PF-03715455 displays some selectivity for p38α over p38β (respective IC50: 0.88 and 23 nM). PF-0371545

Ralimetinib selectively inhibits phosphorylation of MK2 (Thr334) and has no effect on phosphorylation of p38α MAPK, JNK, ERK1/2, c-Jun, ATF2, or c-Myc. Ralimetinib is an effective and selective, ATP-competitive inhibitor of p38 MAPK α/β (IC50s: 5.3 and 3.

PH-797804 is a pyridinone inhibitor of p38α (IC50: 26 nM, in a cell-free assay); 4-fold more selective versus p38β and does not inhibit JNK2.

Selective, ATP-competitive p38 inhibitor (IC50 = 9 nM for p38α in vitro). Displays approximately 10-fold selectivity for p38α over p38β and 2000-fold selectivity for p38α over 20 other kinases. Reduces p38α phosphorylation in multiple myeloma cells in vitro and in vivo; activity results in decreased tumor burden and angiogenesis in murine models of multiple myeloma. Also enhances bortezomib-induced cytotoxicity against multiple myeloma cells. Hideshima et al (2004) p38 MAPK inhibition enhances PS-341 (bortezomib)-induced cytotoxicity against multiple myeloma cells. Oncogene. 23 8766 PMID:15480425 |Giafis et al (2006) Role of the p38 mitogen-activated protein kinase pathway in the generation of arsenic trioxide-dependent cellular responses. Cancer Res. 66 6763 PMID:16818652 |Vanderkerken et al (2007) Inhibition of p38α mitogen-activated protein kinase prevents the development of osteolytic bone disease, reduces tumor burden, and increases survival in murine models of multiple myeloma. Cancer Res. 67 4572 PMID:17495322

AMG-548 is an orally active and selective p38α inhibitor (Ki=0.5 nM), shows slightly selective over p38β (Ki=36 nM) and >1000 fold selective against p38γ and p38δ and is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM

Talmapimod hydrochloride is a selective and ATP-competitive p38α inhibitor (IC50: 9 nM). It also shows about 10-fold selectivity over p38β, and at least 2000-fold selectivity over a panel of 20 other kinases, including other MAPKs.

SJFδ is a 10-atom linker PROTAC that selectively degrades p38δ with a DC50 of 46.17 nM, without degrading p38α, p38β, or p38γ[1].