dpp-9

Teneligliptin hydrobromide (MP-513 (hydrobromide)) is a novel, potent, and long-lasting dipeptidyl peptidase-4 inhibitor; competitively inhibited human plasma, rat plasma, and human recombinant DPP-4 in vitro, with IC50 values of approximately 1 nM.

Anagliptin (SK-0403) is a potent inhibitor of DPP-4 (IC50 of 3.8 nM) used in the treatment of type 2 diabetes mellitus.

DPP-4-IN-9 (compound 6l) is a potent dipeptidyl peptidase DPP-4 inhibitor, exhibiting an IC50 of 8.22 nM. Additionally, this compound demonstrates antihyperglycemic activity [1].

1G244 is an inhibitor of DPP8/9 with antiatherosclerotic and antimyeloma properties. 1G244 had the IC50 values of 14 and 53 nM against DPP8 and DPP9, and The Ki values for 1G244 were 0.9 and 4.2 nM for DPP8 and DPP9

Alogliptin Benzoate (SYR 322)(SYR 322), an effective and specific DPP-4 inhibitor (IC50<10 nM), exhibits greater than 10, 000-fold selectivity over DPP-8/9. Alogliptin may inhibit inflammatory responses by preventing the toll-like receptor 4 (TLR-4)-mediated formation of proinflammatory cytokines.

Alogliptin (SYR-322)(SYR-322) is a potent, selective inhibitor of DPP-4 with IC50 of <10 nM, exhibits greater than 10, 000-fold selectivity over DPP-8 and DPP-9.

DPP-IV-IN-2 (H-Lys(4-nitro-Z)-pyrrolidide) is an inhibitor of both DP8/9 and dipeptidyl peptidase IV (IC50s: 0.1 and 0.95 μM).

Aminopeptidase N (AP-N) inhibitor is a reversible inhibitor of AP-N/CD13 (IC50 = 25 μM). It is selective for AP-N/CD13 over matrix metalloproteinase-9 (MMP-9), angiotensin converting enzyme (ACE), neutral endopeptidase (NEP), γ-glutamyl transpeptidase, and the serine proteases dipeptidyl peptidase 4 (DPP-4) and cathepsin G at a concentration of 1 mM. AP-N inhibitor is non-cytotoxic to U937 cells at a concentration of 100 μM.

Talabostat (PT100, Val-boroPro) is a potent, nonselective and orally available dipeptidyl peptidase IV (DPP-IV) inhibitor with a Ki of 0.18 nM. Talabostat is a nonselective DPP-IV inhibitor, inhibiting DPP8/9, FAP, DPP2 and some other DASH family enzymes essentially as potently as it inhibits DPP-IV[1]. Talabostat stimulates the immune system by triggering a proinflammatory form of cell death in monocytes and macrophages known as pyroptosis. The inhibition of two serine proteases, DPP8 and DPP9, activates the proprotein form of caspase-1 independent of the inflammasome adaptor ASC[2]. Talabostat competitively inhibits the dipeptidyl peptidase (DPP) activity of FAP and CD26/DPP-IV, and there is a high-affinity interaction with the catalytic site due to the formation of a complex between Ser630/624 and the boron of talabostat[3]. Talabostat can stimulate immune responses against tumors involving both the innate and adaptive branches of the immune system. In WEHI 164 fibrosarcoma and EL4 and A20/2J lymphoma models, PT-100 causes regression and rejection of tumors. The antitumor effect appears to involve tumor-specific CTL and protective immunological memory. Talabostat treatment of WEHI 164-inoculated mice increases mRNA expression of cytokines and chemokines known to promote T-cell priming and chemoattraction of T cells and innate effector cells[3]. Talabostat treated mice show significant less fibrosis and FAP expression is reduced. Upon PT100 treatment, significant differences in the MMP-12, MIP-1α, and MCP-3 mRNA expression levels in the lungs are also observed. Treatment with PT100 in this murine model of pulmonary fibrosis has an anti-fibro-proliferative effect and increases macrophage activation[4]. [1]. Connolly BA, et al. Dipeptide boronic acid inhibitors of dipeptidyl peptidase IV: determinants of potencyand in vivo efficacy and safety. J Med Chem. 2008 Oct 9;51(19):6005-13. [2]. Okondo MC, et al. DPP8 and DPP9 inhibition induces pro-caspase-1-dependent monocyte and macrophage pyroptosis. Nat Chem Biol. 2017 Jan;13(1):46-53. [3]. Adams S, et al. PT-100, a small molecule dipeptidyl peptidase inhibitor, has potent antitumor effects and augments antibody-mediated cytotoxicity via a novel immune mechanism. Cancer Res. 2004 Aug 1;64(15):5471-80. [4]. Egger C, et al. Effects of the fibroblast activation protein inhibitor, PT100, in a murine model of pulmonary fibrosis. Eur J Pharmacol. 2017 Aug 15;809:64-72.

Anagliptin (SK-0403) hydrochloride is a potent, highly selective, orally active inhibitor of dipeptidyl peptidase 4 (DPP-4) (IC50: 3.8 nM), with relatively weak selectivity for DPP-8 (IC50: 68 nM) and DPP-9 (IC50: 60 nM).

Gemigliptin Tartrate (LC15-0444 tartrate) is a highly selective, reversible and competitive inhibitor of dipeptidyl peptidase-4 (DPP-4). It has an IC50 of 10.3 nM for human recombinant DPP-4. Gemigliptin tartrate exhibits potent anti-glycation properties.

GLP-1(9-36)amide TFA, a predominant metabolite of glucagon-like peptide-1-(7-36)amide synthesized through dipeptidyl peptidase-4 (DPP-4) activity, functions as an antagonist to the human pancreatic GLP-1 receptor [1] [2].