A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study

Angiotensin converting enzyme (ACE) plays a crucial role in regulating blood pressure in the human body. Identification of potential ACE inhibitors from medicinal plants supported the idea of repurposing these medicinal plants against hypertension. A method based on ultra-performance liquid chromato...

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Autores principales: Syeda Tehreem, Saeedur Rahman, Muhammad Salman Bhatti, Reaz Uddin, Muhammad Noman Khan, Saba Tauseef, Hesham R. El-Seedi, Abdullatif Bin Muhsinah, Jalal Uddin, Syed Ghulam Musharraf
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spelling oai:doaj.org-article:27fa4a08bf8840cab5e7af8a46b082a02021-11-25T18:28:51ZA UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study10.3390/molecules262269711420-3049https://doaj.org/article/27fa4a08bf8840cab5e7af8a46b082a02021-11-01T00:00:00Zhttps://www.mdpi.com/1420-3049/26/22/6971https://doaj.org/toc/1420-3049Angiotensin converting enzyme (ACE) plays a crucial role in regulating blood pressure in the human body. Identification of potential ACE inhibitors from medicinal plants supported the idea of repurposing these medicinal plants against hypertension. A method based on ultra-performance liquid chromatography (UPLC) coupled with a diode array detector (DAD) was used for the rapid screening of plant extracts and purified compounds to determine their ACE inhibitory activity. Hippuryl-histidiyl-leucine (HHL) was used as a substrate, which is converted into hippuric acid (HA) by the action of ACE. A calibration curve of the substrate HHL was developed with the linear regression 0.999. The limits of detection and quantification of this method were found to be 0.134 and 0.4061 mM, respectively. Different parameters of ACE inhibitory assay were optimized, including concentration, incubation time and temperature. The ACE inhibition potential of <i>Adhatoda vasica</i> (methanolic-aqueous extract) and its isolated pyrroquinazoline alkaloids, vasicinol (<b>1</b>), vasicine (<b>2</b>) and vasicinone (<b>3</b>) was evaluated. Compounds <b>1</b>–<b>3</b> were characterized by various spectroscopic techniques. The IC<sub>50</sub> values of vasicinol (<b>1</b>), vasicine (<b>2</b>) and vasicinone (<b>3</b>) were found to be 6.45, 2.60 and 13.49 mM, respectively. Molecular docking studies of compounds <b>1</b>–<b>3</b> were also performed. Among these compounds, vasicinol (<b>1</b>) binds as effectively as captopril, a standard drug of ACE inhibition.Syeda TehreemSaeedur RahmanMuhammad Salman BhattiReaz UddinMuhammad Noman KhanSaba TauseefHesham R. El-SeediAbdullatif Bin MuhsinahJalal UddinSyed Ghulam MusharrafMDPI AGarticleangiotensin converting enzymehypertensionpyrroquinazoline alkaloidsvasicinevasicinolvasicinoneOrganic chemistryQD241-441ENMolecules, Vol 26, Iss 6971, p 6971 (2021)
institution DOAJ
collection DOAJ
language EN
topic angiotensin converting enzyme
hypertension
pyrroquinazoline alkaloids
vasicine
vasicinol
vasicinone
Organic chemistry
QD241-441
spellingShingle angiotensin converting enzyme
hypertension
pyrroquinazoline alkaloids
vasicine
vasicinol
vasicinone
Organic chemistry
QD241-441
Syeda Tehreem
Saeedur Rahman
Muhammad Salman Bhatti
Reaz Uddin
Muhammad Noman Khan
Saba Tauseef
Hesham R. El-Seedi
Abdullatif Bin Muhsinah
Jalal Uddin
Syed Ghulam Musharraf
A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
description Angiotensin converting enzyme (ACE) plays a crucial role in regulating blood pressure in the human body. Identification of potential ACE inhibitors from medicinal plants supported the idea of repurposing these medicinal plants against hypertension. A method based on ultra-performance liquid chromatography (UPLC) coupled with a diode array detector (DAD) was used for the rapid screening of plant extracts and purified compounds to determine their ACE inhibitory activity. Hippuryl-histidiyl-leucine (HHL) was used as a substrate, which is converted into hippuric acid (HA) by the action of ACE. A calibration curve of the substrate HHL was developed with the linear regression 0.999. The limits of detection and quantification of this method were found to be 0.134 and 0.4061 mM, respectively. Different parameters of ACE inhibitory assay were optimized, including concentration, incubation time and temperature. The ACE inhibition potential of <i>Adhatoda vasica</i> (methanolic-aqueous extract) and its isolated pyrroquinazoline alkaloids, vasicinol (<b>1</b>), vasicine (<b>2</b>) and vasicinone (<b>3</b>) was evaluated. Compounds <b>1</b>–<b>3</b> were characterized by various spectroscopic techniques. The IC<sub>50</sub> values of vasicinol (<b>1</b>), vasicine (<b>2</b>) and vasicinone (<b>3</b>) were found to be 6.45, 2.60 and 13.49 mM, respectively. Molecular docking studies of compounds <b>1</b>–<b>3</b> were also performed. Among these compounds, vasicinol (<b>1</b>) binds as effectively as captopril, a standard drug of ACE inhibition.
format article
author Syeda Tehreem
Saeedur Rahman
Muhammad Salman Bhatti
Reaz Uddin
Muhammad Noman Khan
Saba Tauseef
Hesham R. El-Seedi
Abdullatif Bin Muhsinah
Jalal Uddin
Syed Ghulam Musharraf
author_facet Syeda Tehreem
Saeedur Rahman
Muhammad Salman Bhatti
Reaz Uddin
Muhammad Noman Khan
Saba Tauseef
Hesham R. El-Seedi
Abdullatif Bin Muhsinah
Jalal Uddin
Syed Ghulam Musharraf
author_sort Syeda Tehreem
title A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
title_short A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
title_full A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
title_fullStr A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
title_full_unstemmed A UPLC-DAD-Based Bio-Screening Assay for the Evaluation of the Angiotensin Converting Enzyme Inhibitory Potential of Plant Extracts and Compounds: Pyrroquinazoline Alkaloids from <i>Adhatoda vasica</i> as a Case Study
title_sort uplc-dad-based bio-screening assay for the evaluation of the angiotensin converting enzyme inhibitory potential of plant extracts and compounds: pyrroquinazoline alkaloids from <i>adhatoda vasica</i> as a case study
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/27fa4a08bf8840cab5e7af8a46b082a0
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