Characterization of stable and reactive metabolites of piperine formed on incubation with human liver microsomes

Black pepper, though commonly employed as a spice, has many medicinal properties. It consists of volatile oils, alkaloids, pungent resins, etc., of which piperine is a major constituent. Though safe at low doses, piperine causes alteration in the activity of drug metabolising enzymes and transporter...

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Veröffentlicht in:Journal of mass spectrometry. 2019-09, Vol.54 (9), p.738-749
Hauptverfasser: Praneetha, Pammi, Balhara, Ankit, Ladumor, Mayur K., Singh, Dilip Kumar, Patil, Amol, Preethi, Jalvadi, Pokharkar, Sunil, Deshpande, Abhijeet Yashwantrao, Giri, Sanjeev, Singh, Saranjit
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container_end_page 749
container_issue 9
container_start_page 738
container_title Journal of mass spectrometry.
container_volume 54
creator Praneetha, Pammi
Balhara, Ankit
Ladumor, Mayur K.
Singh, Dilip Kumar
Patil, Amol
Preethi, Jalvadi
Pokharkar, Sunil
Deshpande, Abhijeet Yashwantrao
Giri, Sanjeev
Singh, Saranjit
description Black pepper, though commonly employed as a spice, has many medicinal properties. It consists of volatile oils, alkaloids, pungent resins, etc., of which piperine is a major constituent. Though safe at low doses, piperine causes alteration in the activity of drug metabolising enzymes and transporters at high dose and is known to precipitate liver toxicity. It has a potential to form reactive metabolite(s) (RM) owing to the presence of structural alerts, such as methylenedioxyphenyl (MDP), α, β‐unsaturated carbonyl group (Michael acceptor), and piperidine. The present study was designed to detect and characterize stable and RM(s) of piperine formed on in vitro incubation with human liver microsomes. The investigation of RMs was done with the aid of trapping agents, viz, glutathione (GSH) and N‐acetylcysteine (NAC). The samples were analysed by ultra‐high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC‐HRMS) using Thermo Scientific Q Exactive Plus Orbitrap. Full scan MS followed by data‐dependent MS2 (Full MS‐ddMS2) mode was used to establish mass spectrometric fragmentation pathways of protonated piperine and its metabolites. In total, four stable metabolites and their isomers (M1a‐c, M2a‐b, M3a‐c, and M4a‐b) were detected. Their formation involved removal of carbon (3, M1a‐c), hydroxylation (2, M2a‐b), hydroxylation with hydrogenation (3, M3a‐c), and dehydrogenation (2, M4a‐b). Out of these metabolites, M1, M2, and M3 are reported earlier in the literature, but their isomers and two M4 variants are novel. In addition, six novel conjugates of RMs, including three GSH conjugates of m/z 579 and three NAC conjugates of m/z 435, were also observed.
doi_str_mv 10.1002/jms.4424
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It consists of volatile oils, alkaloids, pungent resins, etc., of which piperine is a major constituent. Though safe at low doses, piperine causes alteration in the activity of drug metabolising enzymes and transporters at high dose and is known to precipitate liver toxicity. It has a potential to form reactive metabolite(s) (RM) owing to the presence of structural alerts, such as methylenedioxyphenyl (MDP), α, β‐unsaturated carbonyl group (Michael acceptor), and piperidine. The present study was designed to detect and characterize stable and RM(s) of piperine formed on in vitro incubation with human liver microsomes. The investigation of RMs was done with the aid of trapping agents, viz, glutathione (GSH) and N‐acetylcysteine (NAC). The samples were analysed by ultra‐high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC‐HRMS) using Thermo Scientific Q Exactive Plus Orbitrap. Full scan MS followed by data‐dependent MS2 (Full MS‐ddMS2) mode was used to establish mass spectrometric fragmentation pathways of protonated piperine and its metabolites. In total, four stable metabolites and their isomers (M1a‐c, M2a‐b, M3a‐c, and M4a‐b) were detected. Their formation involved removal of carbon (3, M1a‐c), hydroxylation (2, M2a‐b), hydroxylation with hydrogenation (3, M3a‐c), and dehydrogenation (2, M4a‐b). Out of these metabolites, M1, M2, and M3 are reported earlier in the literature, but their isomers and two M4 variants are novel. 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It consists of volatile oils, alkaloids, pungent resins, etc., of which piperine is a major constituent. Though safe at low doses, piperine causes alteration in the activity of drug metabolising enzymes and transporters at high dose and is known to precipitate liver toxicity. It has a potential to form reactive metabolite(s) (RM) owing to the presence of structural alerts, such as methylenedioxyphenyl (MDP), α, β‐unsaturated carbonyl group (Michael acceptor), and piperidine. The present study was designed to detect and characterize stable and RM(s) of piperine formed on in vitro incubation with human liver microsomes. The investigation of RMs was done with the aid of trapping agents, viz, glutathione (GSH) and N‐acetylcysteine (NAC). The samples were analysed by ultra‐high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC‐HRMS) using Thermo Scientific Q Exactive Plus Orbitrap. Full scan MS followed by data‐dependent MS2 (Full MS‐ddMS2) mode was used to establish mass spectrometric fragmentation pathways of protonated piperine and its metabolites. In total, four stable metabolites and their isomers (M1a‐c, M2a‐b, M3a‐c, and M4a‐b) were detected. Their formation involved removal of carbon (3, M1a‐c), hydroxylation (2, M2a‐b), hydroxylation with hydrogenation (3, M3a‐c), and dehydrogenation (2, M4a‐b). Out of these metabolites, M1, M2, and M3 are reported earlier in the literature, but their isomers and two M4 variants are novel. 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Balhara, Ankit ; Ladumor, Mayur K. ; Singh, Dilip Kumar ; Patil, Amol ; Preethi, Jalvadi ; Pokharkar, Sunil ; Deshpande, Abhijeet Yashwantrao ; Giri, Sanjeev ; Singh, Saranjit</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3864-f2f3f121cb7029f558b2ae0d7c034d1f7eddd14379bc1931243890f63fbb08e13</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Acetylcysteine</topic><topic>Acetylcysteine - chemistry</topic><topic>Alkaloids</topic><topic>Alkaloids - analysis</topic><topic>Alkaloids - metabolism</topic><topic>Benzodioxoles - analysis</topic><topic>Benzodioxoles - metabolism</topic><topic>Carbonyl compounds</topic><topic>Carbonyl groups</topic><topic>Carbonyls</topic><topic>Chromatography, High Pressure Liquid</topic><topic>Conjugates</topic><topic>Dehydrogenation</topic><topic>Essential oils</topic><topic>Glutathione</topic><topic>Glutathione - chemistry</topic><topic>Hepatotoxicity</topic><topic>High performance liquid chromatography</topic><topic>HPLC</topic><topic>Humans</topic><topic>Hydroxylation</topic><topic>Incubation</topic><topic>Incubation period</topic><topic>Isomerism</topic><topic>Isomers</topic><topic>Liquid chromatography</topic><topic>Liver</topic><topic>Mass spectrometry</topic><topic>Mass spectroscopy</topic><topic>Medicinal plants</topic><topic>Metabolites</topic><topic>Microsomes</topic><topic>Microsomes, Liver - metabolism</topic><topic>N‐acetyl‐L‐cysteine</topic><topic>orbitrap</topic><topic>Piper nigrum</topic><topic>Piperidine</topic><topic>Piperidines - analysis</topic><topic>Piperidines - metabolism</topic><topic>Piperine</topic><topic>Polyunsaturated Alkamides - analysis</topic><topic>Polyunsaturated Alkamides - metabolism</topic><topic>reactive metabolite</topic><topic>Resins</topic><topic>Ribosomes</topic><topic>Spices</topic><topic>Tandem Mass Spectrometry</topic><topic>Toxicity</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Praneetha, Pammi</creatorcontrib><creatorcontrib>Balhara, Ankit</creatorcontrib><creatorcontrib>Ladumor, Mayur K.</creatorcontrib><creatorcontrib>Singh, Dilip Kumar</creatorcontrib><creatorcontrib>Patil, Amol</creatorcontrib><creatorcontrib>Preethi, Jalvadi</creatorcontrib><creatorcontrib>Pokharkar, Sunil</creatorcontrib><creatorcontrib>Deshpande, Abhijeet Yashwantrao</creatorcontrib><creatorcontrib>Giri, Sanjeev</creatorcontrib><creatorcontrib>Singh, Saranjit</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Calcium &amp; 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It consists of volatile oils, alkaloids, pungent resins, etc., of which piperine is a major constituent. Though safe at low doses, piperine causes alteration in the activity of drug metabolising enzymes and transporters at high dose and is known to precipitate liver toxicity. It has a potential to form reactive metabolite(s) (RM) owing to the presence of structural alerts, such as methylenedioxyphenyl (MDP), α, β‐unsaturated carbonyl group (Michael acceptor), and piperidine. The present study was designed to detect and characterize stable and RM(s) of piperine formed on in vitro incubation with human liver microsomes. The investigation of RMs was done with the aid of trapping agents, viz, glutathione (GSH) and N‐acetylcysteine (NAC). The samples were analysed by ultra‐high performance liquid chromatography coupled with high resolution mass spectrometry (UHPLC‐HRMS) using Thermo Scientific Q Exactive Plus Orbitrap. Full scan MS followed by data‐dependent MS2 (Full MS‐ddMS2) mode was used to establish mass spectrometric fragmentation pathways of protonated piperine and its metabolites. In total, four stable metabolites and their isomers (M1a‐c, M2a‐b, M3a‐c, and M4a‐b) were detected. Their formation involved removal of carbon (3, M1a‐c), hydroxylation (2, M2a‐b), hydroxylation with hydrogenation (3, M3a‐c), and dehydrogenation (2, M4a‐b). Out of these metabolites, M1, M2, and M3 are reported earlier in the literature, but their isomers and two M4 variants are novel. In addition, six novel conjugates of RMs, including three GSH conjugates of m/z 579 and three NAC conjugates of m/z 435, were also observed.</abstract><cop>England</cop><pub>Wiley Subscription Services, Inc</pub><pmid>31368246</pmid><doi>10.1002/jms.4424</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-8433-4598</orcidid></addata></record>
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subjects Acetylcysteine
Acetylcysteine - chemistry
Alkaloids
Alkaloids - analysis
Alkaloids - metabolism
Benzodioxoles - analysis
Benzodioxoles - metabolism
Carbonyl compounds
Carbonyl groups
Carbonyls
Chromatography, High Pressure Liquid
Conjugates
Dehydrogenation
Essential oils
Glutathione
Glutathione - chemistry
Hepatotoxicity
High performance liquid chromatography
HPLC
Humans
Hydroxylation
Incubation
Incubation period
Isomerism
Isomers
Liquid chromatography
Liver
Mass spectrometry
Mass spectroscopy
Medicinal plants
Metabolites
Microsomes
Microsomes, Liver - metabolism
N‐acetyl‐L‐cysteine
orbitrap
Piper nigrum
Piperidine
Piperidines - analysis
Piperidines - metabolism
Piperine
Polyunsaturated Alkamides - analysis
Polyunsaturated Alkamides - metabolism
reactive metabolite
Resins
Ribosomes
Spices
Tandem Mass Spectrometry
Toxicity
title Characterization of stable and reactive metabolites of piperine formed on incubation with human liver microsomes
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