WH-15 is a fluorogenic PLC reporter with Km value of 49; 30, 86.1 µM for PLC-γ1, PLC-δ1, PLC-β2, respectively. WH-15 can be cleaved in a cascade reaction to generate fluorescent 6-aminoquinoline. WH-15 can be used to respond to imaging PLC activity in live cells[1].
MJ33 lithium is an active-site-directed, specific, competitive, and reversible phospholipase A2 (PLA2) inhibitor. MJ33 lithium blocks the calcium-independent phospholipase A2 (iPLA2) activity of Prdx6[1]. MJ33 lithium has a critical effect on inflammatory brain damage[2].
ML-211 is a carbamate-based dual inhibitor of acyl-protein thioesterase 1 (APT1)/lysophospholipase 1 (LYPLA1) (IC50=17 nM) and LYPLA2 (IC50=30 nM). ML-211 also inhibits theserine hydrolase ABHD11 with an IC50 value of 10 nM but is ≥ 50-fold selective for LYPLA in a panel of 20 additional serine hydrolases[1].
D-Erythro-dihydrosphingosin directly inhibits cytosolic phospholipase A2α (cPLA2α) activity.
Tanshinone I is an inhibitor of type IIA human recombinant sPLA2 (IC50=11 μM) and rabbit recombinant cPLA2 (IC50=82 μM).
C12 NBD sphingomyelin is an active derivative of sphingomyelin (HY-113498) that is tagged with fluorescent C12 nitrobenzoxadiazole (C12 NBD). C12 NBD sphingomyelin can be used as a sphingomyelinase substrate for studying the metabolism and transport of sphingomyelins (Ex=470 nm, Em=525 nm)[1].
BAPTA tetrasodium is a selective chelator for calcium. BAPTA tetrasodium, as calcium indicator, has high selectivity against magnesium and calcium. BAPTA tetrasodium is widely used as an intracellular buffer for investigating the effects of Ca2+ release from intracellular stores or influx via Ca2+-permeable channels in the plasma membrane. BAPTA tetrasodium can also inhibit phospholipase C activity independently of their role as Ca2+ chelators[1][2][3].
MAFP (Methyl Arachidonyl Fluorophosphonate) is an selective, active-site directed and irreversible inhibitor of cPLA2 and iPLA2. MAFP is also a potent irreversible inhibitor of anandamide amidase.
SB-435495 hydrochloride is a potent, selective, reversible, non-covalent and orally active Lp-PLA2 inhibitor with an IC50 of 0.06 nM[1][3].
CCT129957 is an indole derivative and a potent phospholipase C-γ (PLC-γ) inhibitor with an IC50 of ~3 μM and a GC50 of 15 μM. CCT129957 inhibits Ca2+ release in squamous carcinoma cells at ~15 μM[1][2].
SB-435495 ditartrate is a potent, selective, reversible, non-covalent and orally active Lp-PLA2 inhibitor with an IC50 of 0.06 nM[1][3].
EA4, a derivative of quinone, is an inhibitor for both rPLA and cPLA. EA4 can inhibit rPLA2 with a Ki value of 130 μM. EA4 can be used for the research of hemostasis, thrombosis, and erythropoiesis[1].
FIPI is a derivative of halopemide which potently inhibits both PLD1 and PLD2 with IC50s of 25 nM and 20 nM, respectively.
hnps-PLA-IN-1 (compound 5aa), a indole-3-acetamide, is a hnps-PLA2 inhibitor (IC50=0.124 μM)[1].
Giripladib (PLA-695) is a indole-based inhibitor of cytosolic phospholipase A2 (cPLA2). Giripladib can be used for osteoarthritis and breast cancer research[1][2].
Efipladib is a potent, selective and orally active cPLA2α inhibitor with an IC50 of 0.04 μM and a Kd of 0.067 μM[1].
ROC-0929 (compound 13a) is a potent and selective inhibitor of secreted phospholipases A2 (sPLA2s) with an IC50 of 80 nM, specially targeting hGX. ROC-0929 inhibits the phosphorylation of ERK1/2 and p-38. Secreted phospholipases A2 (sPLA2s) are a family of disulfide-rich, Ca2+-dependent enzymes that hydrolyze the sn-2 position of glycero-phospholipids to release a fatty acid and a lysophospholipid. ROC-0929 has the potential for the treatment of inflammation related diseases[1].
Melittin free acid is a basic 26-amino-acid polypeptide, the major active ingredient of honeybee venom. Melittin free acid is an activator of phospholipase A2 (PLA2). Melittin free acid has broad-spectrum antifungal activity with MIC values of 0.4-60 μM. Melittin free acid hinders fungal growth by inducing cell apoptosis, repressing (1,3)-β-D-glucan synthase and participating in other pathways[1][2].
sPLA2 inhibitor 1, a D-tyrosine derivative, is an orally active, potent secretory phospholipase A2 (sPLA2) inhibitor with an IC50 of 29 nM for human nonpancreatic secretory PLA2 isoform IIa (hnpsPLA2-IIa). sPLA2 inhibitor 1 has anti-inflammatory activity[1].
GK563 is a selective Ca2+-independent phospholipase A2 (GVIA iPLA2) inhibitor with an IC50 value of 1 nM. GK563 is 22000 times more active against GVIA iPLA2 than GIVA cPLA2. GK563 reduces β-cell apoptosis induced by proinflammatory cytokines, raising the possibility that it can be beneficial in countering autoimmune diseases, such as type 1 diabetes[1].
GK187 is a potent and selective Group VIA calcium-independent phospholipase A2 (GVIA iPLA2) inhibitor with an XI(50) value of 0.0001. GK187 can be used for researching various neurological disorders[1]. [The XI(50) is the mole fraction of the inhibitor in the total substrate interface required to inhibit the enzyme by 50%.]
Lp-PLA2-IN-4 is a potent inhibitor of lipoprotein-associated phospholipase A2 (Lp-PLA2). Lp-PLA2 previously known as platelet- activating factor acetylhydrolase (PAF-AH), is a phospholipase A2 enzyme involved in hydrolysis of lipoprotein lipids or phospholipids. Lp-PLA2-IN-4 has the potential for the research of diseases associated with the activity of Lp-PLA2, for example atherosclerosis, Alzheimer's disease (extracted from patent WO2021228159A1, compound 38)[1].
D609 is a selective competitive inhibitor of phosphatidyl choline-specific phospholipase C (PC-PLC), with Ki of 6.4 μM.
Levobupivacaine Hcl is a local anaesthetic compound belonging to the amino amide group; long-acting local anesthetic.
AACOCF3 (Arachidonyl trifluoromethyl ketone) is a cell-permeant trifluoromethyl ketone analog of arachidonic acid. AACOCF3 is a potent and selective slow binding inhibitor of the 85-kDa cytosolic phospholipase A2 (cPLA2). AACOCF3 blocks production of arachidonate and 12-hydroxyeicosatetraenoic acid by calcium ionophore-challenged platelets. AACOCF3 inhibits glucose-induced insulin secretion from isolated rat islets. AACOCF3 has the potential for the research of cardiovascular disease[1][2][3].
FKGK18 (FKGK18) is a potent, selective inhibitor of iPLA2 (group VIA Ca2+-independent phospholipase A2) with IC50 of 50 nM; displays 195 and >455 times more potent for GVIA iPLA(2) than for GIVA cPLA(2) and GV sPLA(2); inhibits Ca2+-independent PLA2 activity in a concentration-dependent manner, similar to S-BEL, which preferentially inhibits cytosol-associated iPLA2β; FKGK18 a valuable tool to explore the role of GVIA iPLA(2) in cells and in vivo models.
N-(p-amylcinnamoyl) Anthranilic Acid (ACA) is a broad spectrum Phospholipase A2 (PLA2) inhibitor and TRP channel blocker[1][2]. N-(p-amylcinnamoyl) Anthranilic Acid (ACA) is also an effective reversible inhibitor of calcium-activated chloride channels, has potential to treat arrhythmia[3].
DL-erythro-Dihydrosphingosine is a potent inhibitor of PKC and phospholipase A2 (PLA2)[1][2].
LY 178002 is a potent inhibitor of 5-lipoxygenase, phospholipase A2, with IC50 of 0.6 μM for 5-1ipoxygenase, inhibits cellular production of LTB4 by human polymorphonuclear leukocytes, and shows relatively weak inhibition on cyclooxygenase.
AA26-9 is a potent and broad spectrum serine hydrolase inhibitor.