Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches

BackgroundDiabetes has become a serious global public health problem. With the increasing prevalence of type 2 diabetes mellitus (T2DM), the incidence of complications of T2DM is also on the rise. Sitagliptin, as a targeted drug of DPP4, has good therapeutic effect for T2DM. It is well known that si...

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Main Authors: Jian-hong Qi, Pu-yu Chen, Ding-yuan Cai, Yi Wang, Yue-lei Wei, Su-ping He, Wei Zhou
Format: Article
Language:English
Published: Frontiers Media S.A. 2023-01-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fendo.2022.1096655/full
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author Jian-hong Qi
Pu-yu Chen
Ding-yuan Cai
Yi Wang
Yue-lei Wei
Su-ping He
Wei Zhou
author_facet Jian-hong Qi
Pu-yu Chen
Ding-yuan Cai
Yi Wang
Yue-lei Wei
Su-ping He
Wei Zhou
author_sort Jian-hong Qi
collection DOAJ
description BackgroundDiabetes has become a serious global public health problem. With the increasing prevalence of type 2 diabetes mellitus (T2DM), the incidence of complications of T2DM is also on the rise. Sitagliptin, as a targeted drug of DPP4, has good therapeutic effect for T2DM. It is well known that sitagliptin can specifically inhibit the activity of DPP4 to promote insulin secretion, inhibit islet β cell apoptosis and reduce blood glucose levels, while other pharmacological mechanisms are still unclear, such as improving insulin resistance, anti-inflammatory, anti-oxidative stress, and anti-fibrosis. The aim of this study was to explore novel targets and potential signaling pathways of sitagliptin for T2DM.MethodsFirstly, network pharmacology was applied to find the novel target most closely related to DPP4. Semi-flexible molecular docking was performed to confirm the binding ability between sitagliptin and the novel target, and molecular dynamics simulation (MD) was carried to verify the stability of the complex formed by sitagliptin and the novel target. Furthermore, surface-plasmon resonance (SPR) was used to explored the affinity and kinetic characteristics of sitagliptin with the novel target. Finally, the molecular mechanism of sitagliptin for T2DM was predicted by the enrichment analysis of GO function and KEGG pathway.ResultsIn this study, we found the cell surface receptor―angiotensin-converting enzyme 2 (ACE2) most closely related to DPP4. Then, we confirmed that sitagliptin had strong binding ability with ACE2 from a static perspective, and the stability of sitagliptin―ACE2 complex had better stability and longer binding time than BAR708―ACE2 in simulated aqueous solution within 50 ns. Significantly, we have demonstrated a strong affinity between sitagliptin and ACE2 on SPR biosensor, and their kinetic characteristics were “fast binding/fast dissociation”. The guiding significance of clinical administration: low dose can reach saturation, but repeated administration was needed. Finally, there was certain relationship between COVID-19 and T2DM, and ACE2/Ang-(1-7)/Mas receptor (MasR) axis may be the important pathway of sitagliptin targeting ACE2 for T2DM.ConclusionThis study used different methods to prove that ACE2 may be another novel target of sitagliptin for T2DM, which extended the application of ACE2 in improving diabetes mellitus.
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spelling doaj.art-d2b1dd3bdd5b42948378e581c95c5c562023-01-09T10:31:55ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922023-01-011310.3389/fendo.2022.10966551096655Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approachesJian-hong QiPu-yu ChenDing-yuan CaiYi WangYue-lei WeiSu-ping HeWei ZhouBackgroundDiabetes has become a serious global public health problem. With the increasing prevalence of type 2 diabetes mellitus (T2DM), the incidence of complications of T2DM is also on the rise. Sitagliptin, as a targeted drug of DPP4, has good therapeutic effect for T2DM. It is well known that sitagliptin can specifically inhibit the activity of DPP4 to promote insulin secretion, inhibit islet β cell apoptosis and reduce blood glucose levels, while other pharmacological mechanisms are still unclear, such as improving insulin resistance, anti-inflammatory, anti-oxidative stress, and anti-fibrosis. The aim of this study was to explore novel targets and potential signaling pathways of sitagliptin for T2DM.MethodsFirstly, network pharmacology was applied to find the novel target most closely related to DPP4. Semi-flexible molecular docking was performed to confirm the binding ability between sitagliptin and the novel target, and molecular dynamics simulation (MD) was carried to verify the stability of the complex formed by sitagliptin and the novel target. Furthermore, surface-plasmon resonance (SPR) was used to explored the affinity and kinetic characteristics of sitagliptin with the novel target. Finally, the molecular mechanism of sitagliptin for T2DM was predicted by the enrichment analysis of GO function and KEGG pathway.ResultsIn this study, we found the cell surface receptor―angiotensin-converting enzyme 2 (ACE2) most closely related to DPP4. Then, we confirmed that sitagliptin had strong binding ability with ACE2 from a static perspective, and the stability of sitagliptin―ACE2 complex had better stability and longer binding time than BAR708―ACE2 in simulated aqueous solution within 50 ns. Significantly, we have demonstrated a strong affinity between sitagliptin and ACE2 on SPR biosensor, and their kinetic characteristics were “fast binding/fast dissociation”. The guiding significance of clinical administration: low dose can reach saturation, but repeated administration was needed. Finally, there was certain relationship between COVID-19 and T2DM, and ACE2/Ang-(1-7)/Mas receptor (MasR) axis may be the important pathway of sitagliptin targeting ACE2 for T2DM.ConclusionThis study used different methods to prove that ACE2 may be another novel target of sitagliptin for T2DM, which extended the application of ACE2 in improving diabetes mellitus.https://www.frontiersin.org/articles/10.3389/fendo.2022.1096655/fullACE2sitagliptintype 2 diabetes mellitusnetwork pharmacologymolecular dockingmolecular dynamics simulation
spellingShingle Jian-hong Qi
Pu-yu Chen
Ding-yuan Cai
Yi Wang
Yue-lei Wei
Su-ping He
Wei Zhou
Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
Frontiers in Endocrinology
ACE2
sitagliptin
type 2 diabetes mellitus
network pharmacology
molecular docking
molecular dynamics simulation
title Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
title_full Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
title_fullStr Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
title_full_unstemmed Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
title_short Exploring novel targets of sitagliptin for type 2 diabetes mellitus: Network pharmacology, molecular docking, molecular dynamics simulation, and SPR approaches
title_sort exploring novel targets of sitagliptin for type 2 diabetes mellitus network pharmacology molecular docking molecular dynamics simulation and spr approaches
topic ACE2
sitagliptin
type 2 diabetes mellitus
network pharmacology
molecular docking
molecular dynamics simulation
url https://www.frontiersin.org/articles/10.3389/fendo.2022.1096655/full
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