Home Proteases DPP inhibitor Sitagliptin For research use only.

Sitagliptin

Synonyms: MK-0431

Sitagliptin (MK-0431) is an oral and highly selective DPP-4 inhibitor with an IC50 of 18 nM. It is used for the treatment of type 2 diabetes.

Sitagliptin Chemical Structure

Sitagliptin Chemical Structure

CAS: 486460-32-6

Selleck's Sitagliptin has been cited by 17 publications

Purity & Quality Control

Batch: Purity: 99.91%
99.91

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Biological Activity

Description Sitagliptin (MK-0431) is an oral and highly selective DPP-4 inhibitor with an IC50 of 18 nM. It is used for the treatment of type 2 diabetes.
Targets
DPP-4 [1]
(Cell-free)
18 nM
In vitro
In vitro Sitagliptin exhibits a > 2600-fold margin of selectivity against DPP8, DPP9, and other members of the dipeptidyl peptidase family (i.e., potency against DPP-4 vs. DPP8/9)[1]. MK0431 reduces in vitro migration of isolated splenic CD4 T-cells through a pathway involving cAMP/PKA/Rac1 activation[2]. Sitagliptin exerts a novel, direct action in order to stimulate GLP-1 secretion by the intestinal L cell through a DPP-4-independent, protein kinase A- and MEK-ERK1/2-dependent pathway. It therefore reduces the effect of autoimmunity on graft survival[3].
Cell Research Cell lines CD4+ T-cells
Concentrations 100 μmol/l
Incubation Time 1 h
Method

CD4+ T-cells (1 × 106 cells) were plated on membrane inserts (8-μm pore size) in serum-free RPMI 1640 medium. Cell migration was assayed using Transwell chambers in media ± purified porcine kidney DPP-IV (32.1 units/mg; 100 mU/ml final concentration) ± sitagliptin (100 μmol/l) or human GIP (100 nmol/l) or human GLP-1 (100 nmol/l). After 1 h, cells on the upper surface were removed mechanically and migrated cells in the lower compartment were counted.
In Vivo
In vivo Sitagliptin is well absorbed after oral administration with a bioavailability of 87%. Sitagliptin has an apparent terminal half-life of 10–12 h at doses of 25-100 mg and is excreted mainly (≈ 80%) as unchanged compound by the kidneys. Sitagliptin does not interfere with the P450 cytochrome enzymes nor have there been any reported significant drug-drug interactions. Sitagliptin has been shown to inhibit DPP-4 activity by > 90% within 1-2 h of administration[1]. It has a short half-life in mice (1-2 h). Chronic sitagliptin treatment in a non-geneticmouse model of type 2 diabetes elicits significant improvement in glycemic control. The improved glucose homeostasis correlates with restoration of normal islet cell (α and β cells) mass, architecture and insulin secretion capacity in response to glucose stimulation[4]. Sitagliptin prolongs islet graft survival in streptozotocin-induced and NOD mice. Administration of sitagliptin in vivo reduces lymph node and splenic CD4+ T-cell migration, measured in vitro, via incretin- and nonincretin-mediated effects, respectively, and splenic sDPP-IV-responsive CD4+ T-cells and lymph node incretin nonresponsive CD4+ T-cells selectively infiltrated islets of diabetic NOD mice, after tail vein injection[5]. Sitagliptin significantly suppressed epileptogenesis in PTZ (pentylenetetrazole)-induced seizures. Sitagliptin counteracted neuronal damage and all biochemical, and histo-chemical alteration induced by PTZ. Oral sitagliptin can promote hippocampal neurogenesis, counteract hippocampal oxidative stress, and prevent the decline in mice cognition[6].
Animal Research Animal Models male ICR mice
Dosages 280 mg/kg
Administration oral
NCT Number Recruitment Conditions Sponsor/Collaborators Start Date Phases
NCT05219409 Not yet recruiting Type 1 Diabetes University of Milan July 2023 Phase 2|Phase 3
NCT05403281 Completed Healthy Subjects Dong Wha Pharmaceutical Co. Ltd. November 5 2021 Phase 1
NCT03790839 Completed Patients Hua Medicine Limited January 31 2019 Phase 1
NCT03359590 Completed Pharmacological Action Profil Institut für Stoffwechselforschung GmbH|Merck Sharp & Dohme LLC March 21 2018 Phase 2
NCT03659461 Completed Type 2 Diabetes Mellitus|PreDiabetes National University of Malaysia October 1 2017 Not Applicable

Chemical lnformation & Solubility

Molecular Weight 407.31 Formula

C16H15F6N5O
CAS No. 486460-32-6 SDF --
Smiles C1CN2C(=NN=C2C(F)(F)F)CN1C(=O)CC(CC3=CC(=C(C=C3F)F)F)N
Storage (From the date of receipt)

In vitro
Batch:

DMSO : 81 mg/mL ( (198.86 mM)； Moisture-absorbing DMSO reduces solubility. Please use fresh DMSO.)

Ethanol : 81 mg/mL

Water : 5 mg/mL (Ultrasonic and heating for 10 minutes, at 60℃.)


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In vivo
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