Anti-inflammatory agent 7 inhibits proinflammatory cytokines by blocking the NF-κB/MAPK signaling pathway in LPS-treated RAW 264.7 cells as well as mice.

SKF-86002 dihydrochloride is an orally active p38 MAPK inhibitor, with anti-inflammatory, anti-arthritic and analgesic activities. SKF-86002 dihydrochloride inhibits lipopolysaccharide (LPS)-stimulate human monocyte IL-1 and TNF-α production (IC50 = 1 μM). SKF-86002 dihydrochloride inhibits lipoxygenase- and cyclooxygenase-mediated metabolism of arachidonic acid.

AMG-548 hydrochloride, 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. AMG-548 hydrochloride is also extremely potent in the inhibition of whole blood LPS stimulated TNFα (IC50=3 nM). AMG-548 hydrochloride inhibits Wnt signaling by directly inhibiting Casein kinase 1 isoforms δ and ε.

Gypenoside L is a saponin that can be found in Gynostemma pentaphyllum. Gypenoside L increases the SA-β-galactosidase activity, promotes the production of senescence-associated secretory cytokines. Gypenoside L also can activate p38 and ERK MAPK pathways and NF-κB pathway to induce senescence. Gypenoside L exhibits anti-tumor and anti-inflammatory activities.

Andrograpanin, a bioactive compound from Andrographis paniculata, exhibits anti-inflammatory and anti-infectious properties.

(E)-Osmundacetone is the isomer of Osmundacetone. Osmundacetone significantly suppresses the phosphorylation of MAPKs, including JNK, ERK, and p38 kinases. Osmundacetone has a neuroprotective effect against oxidative stress.

p38α inhibitor 2 is a highly potent and selective p38α MAPK inhibitor, with a pIC50 of 9.6. p38α inhibitor 2 inhibits the hERG ion channel (IC50=27 μM) and shows a promising selectivity profile when tested in a panel of 51 other protein kinases (<30% inhibition at 10 μM concentration) and a panel of 141 other biological targets.

OVA-E1 peptide TFA, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes.

OVA-E1 peptide, is an antagonist variant of SIINFEKL [OVA (257-264). OVA-E1 peptide, activates the p38 and JNK cascades similarly in mutant and wild-type thymocytes.

RWJ67657 is a selective p38α and p38β inhibitor (IC50 values are 1 and 11 μM respectively) that displays no activity at p38γ, p38δ and a range of other kinases.

SR-318 is a potent and highly selective p38 MAP kinase inhibitor with IC50s of 5 nM, 32nM and 6.11 μM for p38α, p38βand p38α/β, respectively. SR-318 potently inhibits the TNF-α release in whole blood with an IC50 of 283 nM. SR-318 has anti-cancer and anti-inflammatory activity.

Muramyl dipeptide (MDP) is a synthetic immunoreactive peptide, consisting of N-acetyl muramic acid attached to a short amino acid chain of L-Ala-D-isoGln. Muramyl dipeptide is an inducer of bone formation through induction of Runx2. Muramyl dipeptide directly enhances osteoblast differentiation by up-regulating Runx2 gene expression through MAPK pathways. Muramyl dipeptide indirectly attenuates osteoclast differentiation through a decreased RANKL/OPG ratio.

TAK-715 is a p38 MAPK inhibitor for p38α with IC50 of 7.1 nM, 28-fold more selective for p38α over p38β, no inhibition to p38γ/δ, JNK1, ERK1, IKKβ, MEKK1 or TAK1.

MW-150 is a novel potent, selective, CNS penetrant and orally active inhibitor of p38α MAPK with Ki of 101 nM