The peroxisome proliferator-activated receptor-γ (PPARγ) is the nuclear receptor responsible for transducing the therapeutic activity of the thiazolidinediones (TZDs). TZDs are a group of structurally related synthetic PPARγ receptor agonists with antidiabetic actions in vivo. There are many PPARγ agonists, including 15-deoxy-Δ12,14-prostaglandin J2 and azelaoyl PAF, which are naturally derived. However, only a few antagonists have been reported. T0070907 is a potent and selective antagonist of the human PPARγ with an apparent IC50 of 1 nM for the binding inhibition of rosiglitazone, a reference TZD. T0070907 covalently binds to Cys313 of PPARγ, inducing conformational changes that block the recruitment of transcriptional cofactors to the PPARγ/RXR heterodimer.
A cell-permeable chloro-nitro-benzamido compound that acts as a potent, specific, irreversible, and high-affinity antagonist of PPAR with a Ki of 1 nM. Displays >800-fold greater selectivity for PPAR over PPARa and PPARd (Ki = 0.85 and 1.8 ,
T0070907 has been used to reduce peroxisome proliferator-activated receptor gamma (PPAR-γ) expression in lipopolysaccharide (LPS)-induced leukemia RAW264.7 cell line. It also has been used to evaluate the involvement of wogonin in alleviating EtOH (ethanol)-induced inflammation in RAW264.7 cell line.
ChEBI: 2-chloro-5-nitro-N-pyridin-4-ylbenzamide is a carbonyl compound and an organohalogen compound.
T0070907 has antimicrotubule, antitumor and radiosensitizing properties. It decreases tubulin protein levels, which is associated with cell cycle arrest, apoptosis and also reduces metastasis of colorectal carcinoma cells. T0070907 is used as a therapeutic target in breast cancer. It stimulates proteasome-dependent degradation of tubulin.
Potent and selective PPAR γ antagonist (IC 50 = 1 nM). Displays > 800-fold selectivity for PPAR γ over PPAR α and PPAR δ . In vitro, blocks transcriptional activity of PPAR γ and inhibits rosiglitazone-induced adipogenesis.
T0070907 is very similar in structure and activity to the PPAR-γ antagonist GW9662. T0070907 is more potent and has higher selectivity for PPAR-γ over all other subtypes (about 800-fold) whereas GW9662 has been reported to have some PPAR-α agonist activity.
[1] lee g, elwood f, mcnally j, weiszmann j, lindstrom m, amaral k, nakamura m, miao s, cao p, learned rm, chen jl, li y. t0070907, a selective ligand for peroxisome proliferator-activated receptor gamma, functions as an antagonist of biochemical and cellular activities. j biol chem. 2002 may 31;277(22):19649-57.
