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Collier BB, Brandon WC, Chappell MR, Kovach PM, Grant RP. Maximizing Microsampling: Measurement of Comprehensive Metabolic and Lipid Panels Using a Novel Capillary Blood Collection Device. J Appl Lab Med 2023; 8:1115-1126. [PMID: 37748757 DOI: 10.1093/jalm/jfad066] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Accepted: 08/08/2023] [Indexed: 09/27/2023]
Abstract
BACKGROUND Demand continues to grow for patient-centric sampling solutions that enable collection of small volumes of blood outside of healthcare facilities. Various technologies have been developed to facilitate sample collection but gaps in knowledge remain, preventing these technologies from replacing standard venipuncture. METHODS A novel blood collection device, Touch Activated Phlebotomy (TAP) II® from YourBio Health, and standard fingerstick collection using a BD Microtainer® were utilized to collect capillary serum samples. Measurements of a comprehensive metabolic and lipid panels were measured on these samples and compared to results from venous serum samples that were collected in parallel. Hemolysis was used to assess sample quality. Sample volumes obtained from self-collected TAP II samples were also determined. RESULTS Correlation of capillary serum with respect to venous serum was demonstrated (R > 0.9) for professionally collected TAP II samples, self-collected TAP II samples, and professionally collected fingerstick samples for alkaline phosphatase, alanine aminotransferase, aspartate aminotransferase, blood urea nitrogen, cholesterol, high-density lipoprotein, total bilirubin, and triglycerides. Results for creatinine demonstrated acceptable correlation, however, a consistent negative bias was observed. Biases (with unacceptable correlations) were also observed for measurements of carbon dioxide and potassium. Correlative results for albumin were not consistently acceptable across the collection techniques utilized while the remaining analytes tested did not demonstrate acceptable correlations under any condition. Correlation results, however, would improve with a wider distribution of analyte concentrations. CONCLUSIONS Collections of small volumes of liquid blood continue to show potential as a patient-centric solution.
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Affiliation(s)
| | | | | | - Peyton M Kovach
- Center for Esoteric Testing, Labcorp, Burlington, NC, United States
| | - Russell P Grant
- Center for Esoteric Testing, Labcorp, Burlington, NC, United States
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Cruz JDD, Mpalantinos MA, Oliveira LRD, Branches TG, Xavier A, Souza FDCDA, Aguiar JPL, Ferreira JLP, Silva JRDA, Amaral ACF. Nutritional and chemical composition of Alpinia zerumbet leaves, a traditional functional food. Food Res Int 2023; 173:113417. [PMID: 37803755 DOI: 10.1016/j.foodres.2023.113417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 07/31/2023] [Accepted: 08/28/2023] [Indexed: 10/08/2023]
Abstract
Alpinia zerumbet, a species of the Zingiberaceae family, is a common plant in tropical and subtropical areas used in traditional medicine to treat various diseases and also included as food in the traditional Okinawan diet (Japan). The leaves and rhizomes of this plant are used as spice and flavoring in foods such as rice, meats, and pasta. Studies of the chemical and nutritional characteristics of fresh leaves and of leaves submitted to thermal treatments such as boiling and steaming are lacking. In the current study, the leaves of A. zerumbet were subjected to boiling or steaming for 10, 20, and 30 min as part of the thermal treatments. The study also provides noteworthy results regarding the proximate composition, physical-chemical data, minerals, phenolic compounds, antioxidant activity, volatile compounds, and LC-MS chromatographic profiles of the extracts produced with fresh leaves and with thermal treatments. The carbohydrate content of A. zerumbet leaves improved during the thermal treatments, showing an increase after steaming (18.86 to 19.79%) and boiling for 30 min (25.85%). After boiling treatment for 20 min, a significant amount of protein was found (6.79%) and all heat treatments resulted in low content of lipid (<1.0%). The boiling treatment for 10 min (BT10) resulted in the highest concentrations of total phenolic components (TPC), 339.5 mg/g, and flavonoids (TF), 54.6 mg/g, among the three thermal treatments (BT10, BT20 and BT30). The results of the steaming treatments (ST 10, 20, and 30 min) differed, with ST20 leading to higher TPC (150.4 mg/g) and TF (65.0 mg/g). The quantity of total phenolics and flavonoids, as well as the antioxidant activity, were significantly affected by the cooking method and the length of time of sample exposure to heat. The samples boiled for 30 and 10 min had higher concentrations of antioxidant activity as measured by the phosphomolybdenum and DPPH methods (151.5 mg/g of extract and 101.5 μg/mL, respectively). Thirty-eight volatile organic compounds (VOCs) were identified by chromatographic analysis of fresh and thermally treated leaves of A. zerumbet. Terpenoids were the predominant class of volatile compounds in the fresh leaves and in all thermal treatments. p-Cymene, 1,8-cineole, 4-terpineol, linalool, α-copaene and β-bisabolene have the greatest impact on overall aroma perception, with odor activity values (OAV) greater than five. Among the phenolic compounds identified by LC-HRMS in the extracts of fresh and thermally treated leaves were proanthocyanidins, (+) catechin, (-) epicatechin, quercetin-3-O-glucoronide, isorhamnetin-3-O-glucoronide, kaempferol-3-O-rutinoside, pinocembrin, alpinetin, pinostrobin, and other compounds. The present results support the traditional use of this plant as a potential food with properties that certainly contribute to health improvement.
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Affiliation(s)
- Jefferson Diocesano da Cruz
- Laboratório de Plantas Medicinais e Derivados, Farmanguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Maria A Mpalantinos
- Laboratório de Plantas Medicinais e Derivados, Farmanguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Laena Rebouças de Oliveira
- Laboratório de Cromatografia, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, AM, Brazil
| | - Tainara Garcia Branches
- Laboratório de Cromatografia, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, AM, Brazil
| | - Alexandre Xavier
- Laboratório de Plantas Medicinais e Derivados, Farmanguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil; Plataforma de métodos analíticos, Farmanguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil
| | - Francisca das Chagas do A Souza
- Laboratório de Análises Físico-Químicas e Funcionais dos Alimentos, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | - Jaime P Lopes Aguiar
- Laboratório de Análises Físico-Químicas e Funcionais dos Alimentos, Instituto Nacional de Pesquisas da Amazônia, Manaus, AM, Brazil
| | | | - Jefferson Rocha de Andrade Silva
- Laboratório de Cromatografia, Departamento de Química, Instituto de Ciências Exatas, Universidade Federal do Amazonas, Manaus, AM, Brazil.
| | - Ana Claudia Fernandes Amaral
- Laboratório de Plantas Medicinais e Derivados, Farmanguinhos, Fundação Oswaldo Cruz, Rio de Janeiro, RJ, Brazil.
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Shahid M, Ahmad A, Raish M, Bin Jardan YA, Alkharfy KM, Ahad A, Abul Kalam M, Ahmad Ansari M, Iqbal M, Ali N, Al-Jenoobi FI. Herb-drug interaction: Effect of sinapic acid on the pharmacokinetics of dasatinib in rats. Saudi Pharm J 2023; 31:101819. [PMID: 37860687 PMCID: PMC10582055 DOI: 10.1016/j.jsps.2023.101819] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Accepted: 10/02/2023] [Indexed: 10/21/2023] Open
Abstract
Dasatinib (DAS) is a narrow therapeutic index drug and novel oral multitarget inhibitor of tyrosine kinase and approved for the first-line therapy for chronic myelogenous leukemia (CML) and Philadelphia chromosome (Ph + ) acute lymphoblastic leukemia (ALL). DAS, a known potent substrate of cytochrome (CYP) 3A, P-glycoprotein (Pgp) and breast cancer resistance protein (BCRP) and is subject to auto-induction. The dietary supplementation of sinapic acid (SA) or concomitant use of SA containing herbs/foods may alter the pharmacokinetics as well as pharmacodynamics of DAS, that may probably lead to potential interactions. Protein expression in rat hepatic and intestinal tissues, as well as the in vivo pharmacokinetics of DAS and the roles of CYP3 A2 and drug transporters Pgp-MDR1 and BCPR/ABCG2, suggested a likely interaction mechanism. The single dose of DAS (25 mg/kg) was given orally to rats with or without SA pretreatment (20 mg/kg p.o. per day for 7 days, n = 6). The plasma concentration of DAS was estimated by using Ultra-High-Performance Liquid Chromatography Mass spectrometry (UHPLC-MS/MS). The in vivo pharmacokinetics and protein expression study demonstrate that SA pretreatment has potential to alter the DAS pharmacokinetics. The increase in Cmax, AUC and AUMC proposes increase in bioavailability and rate of absorption via modulation of CYP3 A2, PgP-MDR1 and BCPR/ABCG2 protein expression. Thus, the concomitant use of SA alone or with DAS may cause serious life-threatening drug interactions.
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Affiliation(s)
- Mudassar Shahid
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Ajaz Ahmad
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Raish
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Yousef A Bin Jardan
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Khalid M. Alkharfy
- Department of Clinical Pharmacy, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdul Ahad
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohd Abul Kalam
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mushtaq Ahmad Ansari
- Department of Pharmacology and Toxicology, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muzaffer Iqbal
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Naushad Ali
- Quality Assurance Unit, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
| | - Fahad I. Al-Jenoobi
- Department of Pharmaceutics, College of Pharmacy, King Saud University, Riyadh 11451, Saudi Arabia
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Karaźniewicz-Łada M, Kosicka-Noworzyń K, Rao P, Modi N, Xie YL, Heysell SK, Kagan L. New approach to rifampicin stability and first-line anti-tubercular drug pharmacokinetics by UPLC-MS/MS. J Pharm Biomed Anal 2023; 235:115650. [PMID: 37597382 PMCID: PMC10566301 DOI: 10.1016/j.jpba.2023.115650] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 08/14/2023] [Accepted: 08/14/2023] [Indexed: 08/21/2023]
Abstract
Successful tuberculosis (TB) therapy requires achieving sufficient exposure to multiple drugs. Limited stability of several first-line anti-TB drugs might compromise reliable therapeutic drug monitoring (TDM). We developed and validated a sensitive and selective UPLC-MS/MS method for simultaneous quantification of isoniazid (INH), pyrazinamide (PZA), rifampicin (RIF), its metabolite 25-desacetylrifampicin and degradation products: rifampicin quinone and 3-formyl-rifampicin. Analysis was completed from a very small plasma volume (20 µL) using only protein precipitation with methanol. Chromatographic separation was achieved on a Kinetex Polar C18 column (2.6 µm; 150 × 3 mm) with a mobile phase consisting of 5 mM ammonium acetate and acetonitrile, both containing 0.1 % formic acid, in gradient elution. The analytes were detected using a positive ionization mode by multiple reaction monitoring. The LLOQ for RIF and its degradation products was 0.1 µg/mL, 0.05 µg/mL for INH, and 0.2 µg/mL for PZA. The method was validated based on the FDA guidance. The application of the method was confirmed in the analysis of RIF, INH, and PZA, as well as RIF metabolism/degradation products in plasma samples of patients with TB. Based on the detailed stability study of the analyzed compounds at various storage conditions, we proposed recommendations for handling the plasma and serum samples in TDM and other pharmacokinetic studies.
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Affiliation(s)
- Marta Karaźniewicz-Łada
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka Street, Poznań 60-806, Poland; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA.
| | - Katarzyna Kosicka-Noworzyń
- Department of Physical Pharmacy and Pharmacokinetics, Poznan University of Medical Sciences, 3 Rokietnicka Street, Poznań 60-806, Poland; Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
| | - Prakruti Rao
- Division of Infectious Diseases and International Health, University of Virginia, 345 Crispell Drive, Charlottesville, VA, USA
| | - Nisha Modi
- Division of Infectious Diseases, Rutgers New Jersey Medical School, USA
| | - Yingda L Xie
- Division of Infectious Diseases, Rutgers New Jersey Medical School, USA
| | - Scott K Heysell
- Division of Infectious Diseases and International Health, University of Virginia, 345 Crispell Drive, Charlottesville, VA, USA
| | - Leonid Kagan
- Department of Pharmaceutics, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA; Center of Excellence for Pharmaceutical Translational Research and Education, Ernest Mario School of Pharmacy, Rutgers, The State University of New Jersey, 160 Frelinghuysen Road, Piscataway, NJ 08854, USA
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Sebastião MJ, Hoffman M, Escandell J, Tousi F, Zhang J, Figueroa B, DeMaria C, Gomes-Alves P. Identification of Mispairing Omic Signatures in Chinese Hamster Ovary (CHO) Cells Producing a Tri-Specific Antibody. Biomedicines 2023; 11:2890. [PMID: 38001891 PMCID: PMC10669571 DOI: 10.3390/biomedicines11112890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/16/2023] [Accepted: 10/20/2023] [Indexed: 11/26/2023] Open
Abstract
Monoclonal antibody-based therapy has shown efficacy against cancer, autoimmune, infectious, and inflammatory diseases. Multispecific antibodies (MsAbs), including trispecifics (tsAbs), offer enhanced therapeutic potential by targeting different epitopes. However, when co-expressed from three or more different polypeptide chains, MsAb production can lead to incorrect chain assembly and co-production of mispaired species with impaired biological activity. Moreover, mispairing carries significant challenges for downstream purification, decreasing yields and increasing the cost of bioprocess development. In this study, quantitative transcriptomics and proteomics analyses were employed to investigate which signaling pathways correlated with low and high mispairing clone signatures. Gene and protein expression profiles of Chinese hamster ovary (CHO) clones producing an tsAb were analyzed in the exponential growth and stationary (tsAb production) phase of fed-batch culture. Functional analysis revealed activated endoplasmic reticulum stress in high mispairing clones in both culture phases, while low mispairing clones exhibited expression profiles indicative of activated protein translation, as well as higher endocytosis and target protein degradation, suggesting the clearance of unfolded proteins through ubiquitin-mediated mechanisms. In addition, through transcriptomic profiling, we identified a group of genes that have the potential to be used as a biomarker panel tool for identifying high mispairing levels in the early stages of bioprocess development.
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Affiliation(s)
- Maria João Sebastião
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (M.J.S.)
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Michael Hoffman
- Sanofi Cell Line and Cell Bank Development, Mammalian Platform, Global CMC Development, Framingham, MA 01701, USA (B.F.)
| | - José Escandell
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (M.J.S.)
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
| | - Fatemeh Tousi
- Sanofi Bioanalytics Development, Global CMC Development, Framingham, MA 01701, USA
| | - Jin Zhang
- Sanofi Cell Line and Cell Bank Development, Mammalian Platform, Global CMC Development, Framingham, MA 01701, USA (B.F.)
| | - Bruno Figueroa
- Sanofi Cell Line and Cell Bank Development, Mammalian Platform, Global CMC Development, Framingham, MA 01701, USA (B.F.)
| | - Christine DeMaria
- Sanofi Cell Line and Cell Bank Development, Mammalian Platform, Global CMC Development, Framingham, MA 01701, USA (B.F.)
| | - Patrícia Gomes-Alves
- iBET, Instituto de Biologia Experimental e Tecnológica, Apartado 12, 2780-901 Oeiras, Portugal; (M.J.S.)
- ITQB-NOVA, Instituto de Tecnologia Química e Biológica António Xavier, Universidade Nova de Lisboa, Av. da República, 2780-157 Oeiras, Portugal
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Patel VD, Shamsi SA, Miller A, Liu A, Powell M. Simultaneous separation and detection of nine kynurenine pathway metabolites by reversed-phase liquid chromatography-mass spectrometry: Quantitation of inflammation in human cerebrospinal fluid and plasma. Anal Chim Acta 2023; 1278:341659. [PMID: 37709424 PMCID: PMC10813655 DOI: 10.1016/j.aca.2023.341659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2023] [Revised: 07/24/2023] [Accepted: 07/25/2023] [Indexed: 09/16/2023]
Abstract
BACKGROUND The kynurenine pathway (KP) generates eight tryptophan (TRP) metabolites collectively called kynurenines, which have gained enormous interest in clinical research. The importance of KP for different disease states calls for developing a low-cost and high-throughput chromatography-mass spectrometry method to evaluate the potential of different kynurenines. Simultaneous separation of TRP and its eight metabolites is challenging because they have substantial polarity differences (log P = -2.5 to +1.3). RESULTS A low-cost, reversed-phase LC-MS/MS method based on polarity partitioning was established to simultaneously separate and quantitate all nine kynurenine pathway metabolites (KPMs) in a single run for the first time in the open literature. Based on stationary phase screening and ternary mobile phase optimization strategy, high polarity KPMs were retained while medium and low polarity KPMs were eluted in a shorter time. After method validation, we demonstrated the applicability of this LC/MS/MS method by quantitative measurement of all nine KPM in cerebrospinal fluid (CSF) and plasma among two groups of human subjects diagnosed with depression. Furthermore, we measured the differential KPMs in these two groups of low and high inflammation and correlated the results with CRP or TNF-α markers for depression. SIGNIFICANCE Our proposed LC-MS/MS provides a new metabolite assay that can be easily applied in various clinical applications to simultaneously quantify multiple biomarkers in KP dysfunction.
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Affiliation(s)
- Vijay D Patel
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA
| | - Shahab A Shamsi
- Department of Chemistry, Georgia State University, Atlanta, GA, 30303, USA.
| | - Andrew Miller
- Department of Psychiatry and Behavioral Sciences, Emory University, Atlanta, GA, 30322, USA
| | - Aimin Liu
- Department of Chemistry, The University of Texas at San Antonio, San Antonio, TX, 78249, USA
| | - Mark Powell
- Agilent Technologies, Wilmington, DE, 19808, USA
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Attwa MW, AlRabiah H, Mostafa GAE, Kadi AA. Evaluation of Alectinib Metabolic Stability in HLMs Using Fast LC-MS/MS Method: In Silico ADME Profile, P450 Metabolic Lability, and Toxic Alerts Screening. Pharmaceutics 2023; 15:2449. [PMID: 37896209 PMCID: PMC10610548 DOI: 10.3390/pharmaceutics15102449] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2023] [Revised: 09/29/2023] [Accepted: 10/10/2023] [Indexed: 10/29/2023] Open
Abstract
Alectinib, also known as Alecensa®, is prescribed for the therapeutic treatment of individuals diagnosed with metastatic non-small cell lung cancer (NSCLC) who have a specific genetic mutation referred to as anaplastic lymphoma kinase (ALK) positivity. The Food and Drug Administration granted regular approval to alectinib, a drug developed by Hoffmann-La Roche, Inc. (Basel, Switzerland)/Genentech, Inc. (South San Francisco, CA, USA), on 6 November 2017. The screening of the metabolic stability and identification of hazardous alarms within the chemical structure of ALC was conducted using the StarDrop software package (version 6.6), which incorporates the P450 metabolic module and DEREK software (KB 2018 1.1). The primary aim of this investigation was to develop a high-throughput and accurate LC-MS/MS technique for the quantification of ALC in the metabolic matrix (human liver microsomes; HLMs). The aforementioned methodology was subsequently employed to assess the metabolic stability of ALC in HLMs through in vitro tests, with the obtained results further validated using in silico software. The calibration curve of the ALC showed a linear correlation that exists within the concentration range from 1 to 3000 ng/mL. The LC-MS/MS approach that was recommended exhibited accuracy and precision levels for both inter-day and intra-day measurements. Specifically, the accuracy values ranged from -2.56% to 3.45%, while the precision values ranged from -3.78% to 4.33%. The sensitivity of the established approach was proved by its ability to adhere to an LLOQ of 0.82 ng/mL. The half-life (t1/2) and intrinsic clearance (Clint) of ALC were estimated to be 22.28 min and 36.37 mL/min/kg, correspondingly, using in vitro experiments. The ALC exhibited a moderate extraction ratio. The metabolic stability and safety properties of newly created derivatives can be enhanced by making modest adjustments to the morpholine and piperidine rings or by substituting the substituent, as per computational software. In in silico ADME prediction, ALC was shown to have poor water solubility and high gastrointestinal absorption along with inhibition of some cytochrome P450s (CYP2C19 and CYP2C9) without inhibition of others (CYP1A2, CYP3A4, and CYP2D6) and P-glycoprotein substrate. The study design that involves using both laboratory experiments and different in silico software demonstrates a novel and groundbreaking approach in the establishment and uniformization of LC-MS/MS techniques for the estimation of ALC concentrations, identifying structural alerts and the assessment of its metabolic stability. The utilization of this study strategy has the potential to be employed in the screening and optimization of prospective compounds during the drug creation process. This strategy may also facilitate the development of novel derivatives of the medicine that maintain the same biological action by targeted structural modifications, based on an understanding of the structural alerts included within the chemical structure of ALC.
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Affiliation(s)
- Mohamed W. Attwa
- Department of Pharmaceutical Chemistry, College of Pharmacy, King Saud University, P.O. Box 2457, Riyadh 11451, Saudi Arabia; (H.A.); (G.A.E.M.); (A.A.K.)
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Britto-Júnior J, Medeiros-Teixeira LR, Lima AT, Dassow LC, Lopes-Martins RÁB, Campos R, Moraes MO, Moraes MEA, Antunes E, De Nucci G. 6-Nitrodopamine Is the Most Potent Endogenous Positive Inotropic Agent in the Isolated Rat Heart. Life (Basel) 2023; 13:2012. [PMID: 37895394 PMCID: PMC10607994 DOI: 10.3390/life13102012] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2023] [Revised: 10/01/2023] [Accepted: 10/02/2023] [Indexed: 10/29/2023] Open
Abstract
BACKGROUND 6-nitrodopamine released from rat isolated atria exerts positive chronotropic action, being more potent than noradrenaline, adrenaline, and dopamine. Here, we determined whether 6-nitrodopamine is released from rat isolated ventricles (RIV) and modulates heart inotropism. METHODS Catecholamines released from RIV were quantified by LC-MS/MS and their effects on heart inotropism were evaluated by measuring left ventricular developed pressure (LVDP) in Langendorff's preparation. RESULTS 6-nitrodopamine was the major released catecholamine from RIV. Incubation with L-NAME (100 µM), but not with tetrodotoxin (1 µM), caused a significant reduction in 6-nitrodopamine basal release. 6-nitrodopamine release was significantly reduced in ventricles obtained from L-NAME chronically treated animals. 6-nitrodopamine (0.01 pmol) caused significant increases in LVDP and dP/dtmax, whereas dopamine and noradrenaline required 10 pmol, and adrenaline required 100 pmol, to induce similar increases in LVDP and dP/dtmax. The infusion of atenolol (10 nM) reduced basal LVDP and blocked the increases in LVDP induced by 6-ND (0.01 pmol), without affecting the increases in LVDP induced by 10 nmol of dopamine and noradrenaline and that induced by adrenaline (100 nmol). CONCLUSIONS 6-nitrodopamine is the major catecholamine released from rat isolated ventricles. It is 1000 times more potent than dopamine and noradrenaline and is selectively blocked by atenolol, indicating that 6-ND is a main regulator of heart inotropism.
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Affiliation(s)
- José Britto-Júnior
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
| | - Lincoln Rangel Medeiros-Teixeira
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
| | - Antonio Tiago Lima
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
| | - Letícia Costa Dassow
- Laboratory of Biophotonics and Experimental Therapeutics, University Evangélica of Goiás (UniEVANGÉLICA), Anápolis 75083-515, Brazil; (L.C.D.); (R.Á.B.L.-M.)
| | - Rodrigo Álvaro Brandão Lopes-Martins
- Laboratory of Biophotonics and Experimental Therapeutics, University Evangélica of Goiás (UniEVANGÉLICA), Anápolis 75083-515, Brazil; (L.C.D.); (R.Á.B.L.-M.)
| | - Rafael Campos
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza 60020-181, Brazil; (M.O.M.); (M.E.A.M.)
| | - Manoel Odorico Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza 60020-181, Brazil; (M.O.M.); (M.E.A.M.)
| | - Maria Elisabete A. Moraes
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza 60020-181, Brazil; (M.O.M.); (M.E.A.M.)
| | - Edson Antunes
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
| | - Gilberto De Nucci
- Department of Pharmacology, Faculty of Medical Sciences, University of Campinas (UNICAMP), Campinas 13083-970, Brazil; (J.B.-J.); (L.R.M.-T.); (A.T.L.); (R.C.); (E.A.)
- Laboratory of Biophotonics and Experimental Therapeutics, University Evangélica of Goiás (UniEVANGÉLICA), Anápolis 75083-515, Brazil; (L.C.D.); (R.Á.B.L.-M.)
- Clinical Pharmacology Unit, Drug Research and Development Center, Federal University of Ceará (UFC), Fortaleza 60020-181, Brazil; (M.O.M.); (M.E.A.M.)
- Department of Pharmacology, Institute of Biomedical Sciences, University of São Paulo (USP), Sāo Paulo 05508-220, Brazil
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Agrawal S, Bisen AC, Sanap SN, Biswas A, Choudhury AD, Verma SK, Bhatta RS. LC-MS/MS based quantification of steroidal biomarkers in polycystic ovary syndrome induced rats. J Pharm Biomed Anal 2023; 234:115484. [PMID: 37453143 DOI: 10.1016/j.jpba.2023.115484] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Revised: 05/12/2023] [Accepted: 05/23/2023] [Indexed: 07/18/2023]
Abstract
Polycystic ovary syndrome (PCOS) is a common endocrine disorder that causes reproductive hormones imbalance, missed periods, infertility and distributed steroidogenesis. Reportedly, during PCOS, the endogenous levels of P4 (Progesterone), 17OHP4 (17-α hydroxy progesterone), and T4 (Testosterone) were significantly altered. Thus, quantification of steroid biomarkers involved in the steroidogenesis pathway of PCOS, such as P4, 17OHP4, and T4, holds significant importance. One important drawback of current methods is steroid metabolome traceability. Without adequate traceability, the findings of these techniques will be less reliable for identifying P4, 17OHP4, and T4. These methods also need a high sample size, especially for the most important biomarker that initiates steroidogenesis. To address these challenges, we require a new liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for steroid biomarker analysis. Herein the present work, using validated LC-MS/MS, PCOS biomarkers were measured and compared between normal control rats and PCOS-induced rats before and after analyte administration. The experiment utilized an isocratic separation method employing an analytical C18 column. The mobile phase consisted of acetonitrile (ACN) and aqueous 0.1% formic acid (FA) in a ratio of 90:10 (v/v). The plasma samples were processed with protein precipitation (PPT) followed by the liquid-liquid extraction (LLE) method. The lower limit of quantification (LLOQ) was 0.5 ng/mL in plasma. According to USFDA criteria, the method's systematic validation took into account linearity (r2 > 0.99), accuracy and precision of intra- and inter-batch measurements, stability, biomarker recovery (60-85%) and matrix effect (<± 15%), all of which were determined to be within range ( ± 15%). The pharmacokinetic data showed that, as compared to normal rats, PCOS-induced animals had significantly higher Cmax values for 17OHP4 and T4 (∼2 fold), while lower Cmax values for P4 (∼2 fold). The present work is novel and provides scientific information to explore systematic processes involved in steroidogenesis and boost clinical applicability for PCOS therapy.
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Affiliation(s)
- Sristi Agrawal
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Amol Chhatrapati Bisen
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Sachin Nashik Sanap
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Arpon Biswas
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Abhijit Deb Choudhury
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Sarvesh Kumar Verma
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India
| | - Rabi Sankar Bhatta
- Pharmaceutics and Pharmacokinetics Division, CSIR-Central Drug Research Institute, Lucknow 226031, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
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60
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Fekete S, Guillarme D. Ultra-short columns for the chromatographic analysis of large molecules. J Chromatogr A 2023; 1706:464285. [PMID: 37562104 DOI: 10.1016/j.chroma.2023.464285] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Revised: 07/31/2023] [Accepted: 08/04/2023] [Indexed: 08/12/2023]
Abstract
Today, reverse phase liquid chromatography (RPLC) analysis of proteins is almost exclusively performed on conventional columns (100-150 mm) in gradient elution mode. However, it was shown many years ago that large molecules present an on/off retention mechanism, and that only a very short inlet segment of the chromatographic column retains effectively the large molecules. Much shorter columns - like only a few centimetres or even a few millimetres - can therefore be used to efficiently analyse such macromolecules. The aim of this review is to summarise the historical and more recent works related to the use of very short columns for the analysis of model and therapeutic proteins. To this end, we have outlined the theoretical concepts behind the use of short columns, as well as the instrumental limitations and potential applications. Finally, we have shown that these very short columns were also possibly interesting for other chromatographic modes, such as ion exchange chromatography (IEX), hydrophilic interaction chromatography (HILIC) or hydrophobic interaction chromatography (HIC), as analyses in these chromatographic modes are performed in gradient elution mode.
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Affiliation(s)
| | - Davy Guillarme
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU - Rue Michel Servet 1, 1211 Geneva 4, Switzerland; School of Pharmaceutical Sciences, University of Geneva, CMU - Rue Michel Servet 1, 1211 Geneva 4, Switzerland.
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61
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Evtyugin DD, Evtuguin DV, Casal S, Domingues MR. Advances and Challenges in Plant Sterol Research: Fundamentals, Analysis, Applications and Production. Molecules 2023; 28:6526. [PMID: 37764302 PMCID: PMC10535520 DOI: 10.3390/molecules28186526] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Plant sterols (PS) are cholesterol-like terpenoids widely spread in the kingdom Plantae. Being the target of extensive research for more than a century, PS have topped with evidence of having beneficial effects in healthy subjects and applications in food, cosmetic and pharmaceutical industries. However, many gaps in several fields of PS's research still hinder their widespread practical applications. In fact, many of the mechanisms associated with PS supplementation and their health benefits are still not fully elucidated. Furthermore, compared to cholesterol data, many complex PS chemical structures still need to be fully characterized, especially in oxidized PS. On the other hand, PS molecules have also been the focus of structural modifications for applications in diverse areas, including not only the above-mentioned but also in e.g., drug delivery systems or alternative matrixes for functional foods and fats. All the identified drawbacks are also superimposed by the need of new PS sources and technologies for their isolation and purification, taking into account increased environmental and sustainability concerns. Accordingly, current and future trends in PS research warrant discussion.
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Affiliation(s)
- Dmitry D. Evtyugin
- CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (D.D.E.); (D.V.E.)
- LAQV-REQUIMTE, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Dmitry V. Evtuguin
- CICECO, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal; (D.D.E.); (D.V.E.)
| | - Susana Casal
- LAQV-REQUIMTE, Faculty of Pharmacy, University of Porto, 4050-313 Porto, Portugal
| | - Maria Rosário Domingues
- Mass Spectrometry Centre, LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
- CESAM, Centre for Environmental and Marine Studies, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
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62
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Cinquetti A, Terranova C, Aprile A, Favretto D. Driving license regranting: Hair EtG, serum CDT, and the role of sociodemographic and medicolegal variables. Drug Test Anal 2023; 15:953-961. [PMID: 36525282 DOI: 10.1002/dta.3426] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 11/11/2022] [Accepted: 11/22/2022] [Indexed: 12/23/2022]
Abstract
Driving under the influence (DUI) of alcohol is a road safety problem. Driving license regranting is based on the evaluation of medicolegal and toxicological variables that may include serum carbohydrate-deficient transferrin (CDT) and hair ethyl glucuronide (hEtG). The aim of the study was to compare the diagnostic performance of CDT and hEtG in a population of DUI offenders. Other factors potentially associated with heavy alcohol use were explored. The population included DUI offenders examined during the period of January 1, 2019, through June 30, 2022. Sociodemographic, medicolegal, and toxicological variables were collected. CDT in serum and EtG in head hair were determined in all subjects. Excessive alcohol intake (hEtG ≥30 pg/mg) was considered cause for unfitness to drive. Cohen's kappa coefficient was calculated. Descriptive analyses were performed using chi-square and Mann-Whitney tests. Variables significantly different between the groups were included in a multivariate binary logistic regression model. The sample encompassed 838 subjects (case group: 179, comparison group: 689). CDT exhibited poor agreement (κ = 0.053) with hEtG as the reference test. Lower education, age at DUI, heavy smoking, and GGT levels associated with heavy alcohol consumption differentiated the two groups. For DUI offenders, the use of CDT to assess heavy alcohol consumption is limited, possibly due to the time-window assessed, the time required for normalization, and the different amount of ethanol needed to reach higher CDT levels, in comparison to hEtG; thus, hEtG assessment is strongly recommended for this population. Heavy smoking, GGT, education, and age could be related to heavy alcohol consumption and higher risk of DUI.
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Affiliation(s)
- Alessandro Cinquetti
- Legal Medicine and Toxicology, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Claudio Terranova
- Legal Medicine and Toxicology, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Anna Aprile
- Legal Medicine and Toxicology, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
| | - Donata Favretto
- Legal Medicine and Toxicology, Department of Cardiac, Thoracic, Vascular Sciences and Public Health, University of Padua, Padua, Italy
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Calvo-Lozano O, Hernández-López L, Gomez L, Carné-Sánchez A, von Baeckmann C, Lechuga LM, Maspoch D. Integration of Metal-Organic Polyhedra onto a Nanophotonic Sensor for Real-Time Detection of Nitrogenous Organic Pollutants in Water. ACS APPLIED MATERIALS & INTERFACES 2023; 15:39523-39529. [PMID: 37566722 PMCID: PMC10450679 DOI: 10.1021/acsami.3c07213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Accepted: 07/28/2023] [Indexed: 08/13/2023]
Abstract
The grave health and environmental consequences of water pollution demand new tools, including new sensing technologies, for the immediate detection of contaminants in situ. Herein, we report the integration of metal-organic cages or polyhedra (MOCs/MOPs) within a nanophotonic sensor for the rapid, direct, and real-time detection of small (<500 Da) pollutant molecules in water. The sensor, a bimodal waveguide silicon interferometer incorporating Rh(II)-based MOPs as specific chemical receptors, does not require sample pretreatment and enables minimal expenditure of time and reagents. We validated our sensor for the detection of two common pollutants: the industrial corrosion inhibitor 1,2,3-benzotriazole (BTA) and the systemic insecticide imidacloprid (IMD). The sensor offers a fast time-to-result response (15 min), high sensitivity, and high accuracy. The limit of detection (LOD) in tap water for BTA is 0.068 μg/mL and for IMD, 0.107 μg/mL, both of which are below the corresponding toxicity thresholds defined by the European Chemicals Agency (ECHA). By combining innovative chemical molecular receptors such as MOPs with state-of-the-art photonic sensing technologies, our research opens the path to implement competitive sensor devices for in situ environmental monitoring.
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Affiliation(s)
- Olalla Calvo-Lozano
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BNN,
and Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Laura Hernández-López
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona
Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Leyre Gomez
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona
Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Arnau Carné-Sánchez
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona
Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Cornelia von Baeckmann
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona
Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
| | - Laura M. Lechuga
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, CIBER-BNN,
and Barcelona Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
| | - Daniel Maspoch
- Catalan
Institute of Nanoscience and Nanotechnology (ICN2), CSIC, and Barcelona
Institute of Science and Technology, Campus UAB, 08193 Bellaterra, Barcelona, Spain
- Departament
de Química, Facultat de Ciències, Universitat Autònoma de Barcelona, 08193 Bellaterra, Spain
- ICREA, Pg. Lluís Companys 23, 08010 Barcelona, Spain
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Lin DY, Yu CY, Ku CA, Chung CK. Design, Fabrication, and Applications of SERS Substrates for Food Safety Detection: Review. MICROMACHINES 2023; 14:1343. [PMID: 37512654 PMCID: PMC10385374 DOI: 10.3390/mi14071343] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2023] [Revised: 06/25/2023] [Accepted: 06/28/2023] [Indexed: 07/30/2023]
Abstract
Sustainable and safe food is an important issue worldwide, and it depends on cost-effective analysis tools with good sensitivity and reality. However, traditional standard chemical methods of food safety detection, such as high-performance liquid chromatography (HPLC), gas chromatography (GC), and tandem mass spectrometry (MS), have the disadvantages of high cost and long testing time. Those disadvantages have prevented people from obtaining sufficient risk information to confirm the safety of their products. In addition, food safety testing, such as the bioassay method, often results in false positives or false negatives due to little rigor preprocessing of samples. So far, food safety analysis currently relies on the enzyme-linked immunosorbent assay (ELISA), polymerase chain reaction (PCR), HPLC, GC, UV-visible spectrophotometry, and MS, all of which require significant time to train qualified food safety testing laboratory operators. These factors have hindered the development of rapid food safety monitoring systems, especially in remote areas or areas with a relative lack of testing resources. Surface-enhanced Raman spectroscopy (SERS) has emerged as one of the tools of choice for food safety testing that can overcome these dilemmas over the past decades. SERS offers advantages over chromatographic mass spectrometry analysis due to its portability, non-destructive nature, and lower cost implications. However, as it currently stands, Raman spectroscopy is a supplemental tool in chemical analysis, reinforcing and enhancing the completeness and coverage of the food safety analysis system. SERS combines portability with non-destructive and cheaper detection costs to gain an advantage over chromatographic mass spectrometry analysis. SERS has encountered many challenges in moving toward regulatory applications in food safety, such as quantitative accuracy, poor reproducibility, and instability of large molecule detection. As a result, the reality of SERS, as a screening tool for regulatory announcements worldwide, is still uncommon. In this review article, we have compiled the current designs and fabrications of SERS substrates for food safety detection to unify all the requirements and the opportunities to overcome these challenges. This review is expected to improve the interest in the sensing field of SERS and facilitate the SERS applications in food safety detection in the future.
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Affiliation(s)
- Ding-Yan Lin
- Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Chung-Yu Yu
- Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Chin-An Ku
- Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan
| | - Chen-Kuei Chung
- Department of Mechanical Engineering, National Cheng Kung University, Tainan 701, Taiwan
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Ziegengeist T, Orth J, Kroll K, Schneider M, Spindler N, Dimova D, Handschuh S, Brandenburg A, Ossola R, Furtmann N, Birkenfeld J, Beil C, Hoffmann D, Schmidt T, Sendak R, Fischer M, Hölper S, Kühn J. High-Throughput and Format-Agnostic Mispairing Assay for Multispecific Antibodies Using Intact Mass Spectrometry. Anal Chem 2023. [PMID: 37369001 DOI: 10.1021/acs.analchem.3c00742] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2023]
Abstract
Multispecific antibodies have gained significant importance in a broad indication space due to their ability to engage multiple epitopes simultaneously and to thereby overcome therapeutic barriers. With growing therapeutic potential, however, the molecular complexity increases, thus intensifying the demand for innovative protein engineering and analytical strategies. A major challenge for multispecific antibodies is the correct assembly of light and heavy chains. Engineering strategies exist to stabilize the correct pairing, but typically individual engineering campaigns are required to arrive at the anticipated format. Mass spectrometry has proven to be a versatile tool to identify mispaired species. However, due to manual data analysis procedures, mass spectrometry is limited to lower throughputs. To keep pace with increasing sample numbers, we developed a high-throughput-capable mispairing workflow based on intact mass spectrometry with automated data analysis, peak detection, and relative quantification using Genedata Expressionist. This workflow is capable of detecting mispaired species of ∼1000 multispecific antibodies in three weeks and thus is applicable to complex screening campaigns. As a proof of concept, the assay was applied to engineering a trispecific antibody. Strikingly, the new setup has not only proved successful in mispairing analysis but has also revealed its potential to automatically annotate other product-related impurities. Furthermore, we could confirm the assay to be format-agnostic, as shown by analyzing several different multispecific formats in one run. With these comprehensive capabilities, the new automated intact mass workflow can be applied as a universal tool to detect and annotate peaks in a format-agnostic approach and in high-throughput, thus enabling complex discovery campaigns.
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Affiliation(s)
- Tanja Ziegengeist
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Jennifer Orth
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Katja Kroll
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Marion Schneider
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Nadja Spindler
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Dilyana Dimova
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Severin Handschuh
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | | | | | - Norbert Furtmann
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Joerg Birkenfeld
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
- Perspix Biotech GmbH FiZ Frankfurt Innovation Center Biotechnology, Frankfurt 60438, Germany
| | - Christian Beil
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Dietmar Hoffmann
- Large Molecules Research Platform, Sanofi, Cambridge, Massachusetts 02141, United States
| | - Thorsten Schmidt
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Rebecca Sendak
- Large Molecules Research Platform, Sanofi, Cambridge, Massachusetts 02141, United States
| | - Melanie Fischer
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Soraya Hölper
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
| | - Jennifer Kühn
- Large Molecules Research Platform, Sanofi-Aventis Deutschland GmbH, Frankfurt 65926, Germany
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66
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Kiamiloglou D, Girousi S. Different Aspects of the Voltammetric Detection of Vitamins: A Review. BIOSENSORS 2023; 13:651. [PMID: 37367016 PMCID: PMC10296722 DOI: 10.3390/bios13060651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Revised: 05/24/2023] [Accepted: 05/29/2023] [Indexed: 06/28/2023]
Abstract
Vitamins comprise a group of organic chemical compounds that contribute significantly to the normal functioning of living organisms. Although they are biosynthesized in living organisms, some are also obtained from the diet to meet the needs of organisms, which is why they are characterized as essential chemical compounds. The lack, or low concentrations, of vitamins in the human body causes the development of metabolic dysfunctions, and for this reason their daily intake with food or as supplements, as well as the control of their levels, are necessary. The determination of vitamins is mainly accomplished by using analytical methods, such as chromatographic, spectroscopic, and spectrometric methods, while studies are carried out to develop new and faster methodologies and techniques for their analysis such as electroanalytical methods, the most common of which are voltammetry methods. In this work, a study is reported that was carried out on the determination of vitamins using both electroanalytical techniques, the common significant of which is the voltammetry technique that has been developed in recent years. Specifically, the present review presents a detailed bibliographic survey including, but not limited to, both electrode surfaces that have been modified with nanomaterials and serve as (bio)sensors as well as electrochemical detectors applied in the determination of vitamins.
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Affiliation(s)
| | - Stella Girousi
- Analytical Chemistry Laboratory, School of Chemistry, Faculty of Sciences, Aristotle University of Thessaloniki, 54124 Thessaloniki, Greece;
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67
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Smeijsters EH, van der Elst KCM, Visch A, Göbel C, Loeff FC, Rispens T, Huitema ADR, van Luin M, El Amrani M. Optimization of a Quantitative Anti-Drug Antibodies against Infliximab Assay with the Liquid Chromatography-Tandem Mass Spectrometry: A Method Validation Study and Future Perspectives. Pharmaceutics 2023; 15:pharmaceutics15051477. [PMID: 37242719 DOI: 10.3390/pharmaceutics15051477] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 05/02/2023] [Accepted: 05/06/2023] [Indexed: 05/28/2023] Open
Abstract
Monoclonal antibodies (mAbs), such as infliximab, are important treatment options for different diseases. Immunogenicity is a major risk, resulting in anti-drug antibodies (ADAs), being associated with adverse events and loss of response, influencing long-term outcomes. The development of ADAs against infliximab is primarily measured by immunoassays like radioimmunoassay (RIA). Although liquid chromatography-tandem mass spectrometry (LC-MS/MS) is increasingly utilized across different fields, this technique is currently not used for ADAs against infliximab measurements. Therefore, we developed the first LC-MS/MS method. Stable isotopically labeled infliximab antigen-binding fragments (SIL IFX F(ab')2) were used to bind and measure ADAs indirectly. Protein A magnetic beads were used to capture IgG, including ADAs, whereafter SIL IFX F(ab')2 was added for labeling. After washing, internal standard addition, elution, denaturation and digestion samples were measured by LC-MS/MS. Internal validation showed good linearity between 0.1 and 16 mg/L (R2 > 0.998). Sixty samples were used for cross-validation with RIA, and no significant difference between ADA concentrations was found. The methods had high correlation (R = 0.94, p < 0.001) and excellent agreement, intraclass correlation coefficient = 0.912 (95% confidence interval 0.858-0.947, p < 0.001). We present the first ADA against the infliximab LC-MS/MS method. The method is amendable for quantifying other ADAs, making it applicable as a template for future ADA methods.
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Affiliation(s)
- Erin H Smeijsters
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Kim C M van der Elst
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Amy Visch
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Camiel Göbel
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Floris C Loeff
- Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Academic Medical Centre, 1066 CX Amsterdam, The Netherlands
| | - Theo Rispens
- Department of Immunopathology, Sanquin Research and Landsteiner Laboratory, Academic Medical Centre, 1066 CX Amsterdam, The Netherlands
| | - Alwin D R Huitema
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
- Department of Pharmacy & Pharmacology, The Netherlands Cancer Institute, 1066 CX Amsterdam, The Netherlands
- Department of Pharmacology, Princess Máxima Center for Pediatric Oncology, 3584 CS Utrecht, The Netherlands
| | - Matthijs van Luin
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
| | - Mohsin El Amrani
- Department of Clinical Pharmacy, Division Laboratories, Pharmacy and Biomedical Genetics, University Medical Center Utrecht, 3584 CX Utrecht, The Netherlands
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Padmapriyadarsini C, Solanki R, Jeyakumar SM, Bhatnagar A, Muthuvijaylaksmi M, Jeyadeepa B, Reddy D, Shah P, Sridhar R, Vohra V, Bhui NK. Linezolid Pharmacokinetics and Its Association with Adverse Drug Reactions in Patients with Drug-Resistant Pulmonary Tuberculosis. Antibiotics (Basel) 2023; 12:antibiotics12040714. [PMID: 37107075 PMCID: PMC10135341 DOI: 10.3390/antibiotics12040714] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/29/2023] Open
Abstract
We evaluated the relationship between the pharmacokinetic parameters of linezolid (LZD) and development of adverse drug reactions (ADRs) in patients with pulmonary drug-resistant tuberculosis. A prospective cohort of adults with pulmonary multidrug-resistant tuberculosis with additional resistance to fluoroquinolone (MDR-TBFQ+) received treatment with bedaquiline, delamanid, clofazimine, and LZD. Blood samples were collected during weeks 8 and 16 at eight time points over 24 h. The pharmacokinetic parameters of LZD were measured using high-performance liquid chromatography and associated with ADRs. Of the 165 MDR-TBFQ+ patients on treatment, 78 patients developed LZD-associated anemia and 69 developed peripheral neuropathy. Twenty-three patients underwent intense pharmacokinetic testing. Plasma median trough concentration was 2.08 µg/mL and 3.41 µg/mL, (normal <2 µg/mL) and AUC0-24 was 184.5 µg/h/mL and 240.5 µg/h/mL at weeks 8 and 16, respectively, showing a linear relationship between duration of intake and plasma levels. Nineteen patients showed LZD-associated ADRs-nine at week 8, twelve at week 16, and two at both weeks 8 and 16. Thirteen of the nineteen had high plasma trough and peak concentrations of LZD. A strong association between LZD-associated ADRs and plasma LZD levels was noted. Trough concentration alone or combinations of trough with peak levels are potential targets for therapeutic drug monitoring.
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Affiliation(s)
| | - Rajesh Solanki
- B.J. Medical College and Hospital, Ahmedabad 380016, India
| | - S M Jeyakumar
- ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India
| | - Anuj Bhatnagar
- Rajan Babu Institute of Pulmonary Medicine and Tuberculosis, New Delhi 110009, India
| | - M Muthuvijaylaksmi
- ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India
| | - Bharathi Jeyadeepa
- ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India
| | - Devarajulu Reddy
- ICMR-National Institute for Research in Tuberculosis, Chennai 600031, India
| | - Prashanth Shah
- B.J. Medical College and Hospital, Ahmedabad 380016, India
| | | | - Vikram Vohra
- National Institute for Tuberculosis and Respiratory Diseases, New Delhi 110030, India
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Marfil S, Märtson AG, Toren-Wielema M, Leer-Buter C, Schölvinck EH, Alffenaar JWC, Touw DJ, Sturkenboom MGG. Subtherapeutic Exposure of Ganciclovir in Children Despite Appropriate Dosing: A Short Communication. Ther Drug Monit 2023; 45:269-272. [PMID: 36920505 PMCID: PMC10013166 DOI: 10.1097/ftd.0000000000001050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Accepted: 09/10/2022] [Indexed: 02/05/2023]
Abstract
ABSTRACT Therapeutic drug monitoring (TDM) results for ganciclovir in 12 different treatment episodes showed large intraindividual and interindividual variabilities in the trough concentration and area under the 24-hour concentration-time curve (AUC24). Despite adequate valganciclovir dosing, subtherapeutic concentrations were found in 30% of the treatment episodes. A decrease in viral load was observed regardless of subtherapeutic exposure. These findings show the need for target concentration evaluation and assessment of the applicability of ganciclovir TDM in children.
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Affiliation(s)
- Sjanene Marfil
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands;
| | - Anne-Grete Märtson
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands;
- University of Liverpool, Antimicrobial Pharmacodynamics and Therapeutics, Liverpool, United Kingdom;
| | - Marlous Toren-Wielema
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands;
| | - Coretta Leer-Buter
- University of Groningen, University Medical Center Groningen, Groningen, Department of Medical Microbiology and Infection Prevention;
| | - Elisabeth H. Schölvinck
- University of Groningen, University Medical Center Groningen, Beatrix Children's Hospital, Department of Pediatric Infectious Diseases, Groningen, the Netherlands;
| | - Jan-Willem C. Alffenaar
- Sydney Institute of Infectious Diseases, the University of Sydney, Westmead;
- The University of Sydney, Sydney Pharmacy School, Faculty of Medicine and Health, Camperdown; and
- Department of Pharmacy, Westmead Hospital, Westmead, Australia
| | - Daan J. Touw
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands;
| | - Marieke G. G. Sturkenboom
- Department of Clinical Pharmacy and Pharmacology, University of Groningen, University Medical Center Groningen, Groningen, the Netherlands;
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70
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Ng NS, Newbery M, Touffu A, Maksour S, Chung J, Carroll L, Zaw T, Wu Y, Ooi L. Edaravone and mitochondrial transfer as potential therapeutics for vanishing white matter disease astrocyte dysfunction. CNS Neurosci Ther 2023. [PMID: 36971196 PMCID: PMC10401142 DOI: 10.1111/cns.14190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Revised: 02/23/2023] [Accepted: 03/15/2023] [Indexed: 03/29/2023] Open
Abstract
INTRODUCTION Previous research has suggested that vanishing white matter disease (VWMD) astrocytes fail to fully differentiate and respond differently to cellular stresses compared to healthy astrocytes. However, few studies have investigated potential VWMD therapeutics in monoculture patient-derived cell-based models. METHODS To investigate the impact of alterations in astrocyte expression and function in VWMD, astrocytes were differentiated from patient and control induced pluripotent stem cells and analyzed by proteomics, pathway analysis, and functional assays, in the absence and presence of stressors or potential therapeutics. RESULTS Vanishing white matter disease astrocytes demonstrated significantly reduced expression of astrocyte markers and markers of inflammatory activation or cellular stress relative to control astrocytes. These alterations were identified both in the presence and absence of polyinosinic:polycytidylic acid stimuli, which is used to simulate viral infections. Pathway analysis highlighted differential signaling in multiple pathways in VWMD astrocytes, including eukaryotic initiation factor 2 (EIF2) signaling, oxidative stress, oxidative phosphorylation (OXPHOS), mitochondrial function, the unfolded protein response (UPR), phagosome regulation, autophagy, ER stress, tricarboxylic acid cycle (TCA) cycle, glycolysis, tRNA signaling, and senescence pathways. Since oxidative stress and mitochondrial function were two of the key pathways affected, we investigated whether two independent therapeutic strategies could ameliorate astrocyte dysfunction: edaravone treatment and mitochondrial transfer. Edaravone treatment reduced differential VWMD protein expression of the UPR, phagosome regulation, ubiquitination, autophagy, ER stress, senescence, and TCA cycle pathways. Meanwhile, mitochondrial transfer decreased VWMD differential expression of the UPR, glycolysis, calcium transport, phagosome formation, and ER stress pathways, while further modulating EIF2 signaling, tRNA signaling, TCA cycle, and OXPHOS pathways. Mitochondrial transfer also increased the gene and protein expression of the astrocyte marker, glial fibrillary acidic protein (GFAP) in VWMD astrocytes. CONCLUSION This study provides further insight into the etiology of VWMD astrocytic failure and suggests edaravone and mitochondrial transfer as potential candidate VWMD therapeutics that can ameliorate disease pathways in astrocytes related to oxidative stress, mitochondrial dysfunction, and proteostasis.
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71
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Graham KA, Lawlor CF, Borotto NB. Characterizing the top-down sequencing of protein ions prior to mobility separation in a timsTOF. Analyst 2023; 148:1534-1542. [PMID: 36876327 PMCID: PMC10042122 DOI: 10.1039/d2an01682f] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2022] [Accepted: 02/28/2023] [Indexed: 03/07/2023]
Abstract
Mass spectrometry (MS)-based proteomics workflows of intact protein ions have increasingly been utilized to study biological systems. These workflows, however, frequently result in convoluted and difficult to analyze mass spectra. Ion mobility spectrometry (IMS) is a promising tool to overcome these limitations by separating ions by their mass- and size-to-charge ratios. In this work, we further characterize a newly developed method to collisionally dissociate intact protein ions in a trapped ion mobility spectrometry (TIMS) device. Dissociation occurs prior to ion mobility separation and thus, all product ions are distributed throughout the mobility dimension, enabling facile assignment of near isobaric product ions. We demonstrate that collisional activation within a TIMS device is capable of dissociating protein ions up to 66 kDa. We also demonstrate that the ion population size within the TIMS device significantly influences the efficiency of fragmentation. Lastly, we compare CIDtims to the other modes of collisional activation available on the Bruker timsTOF and demonstrate that the mobility resolution in CIDtims enables the annotation of overlapping fragment ions and improves sequence coverage.
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Affiliation(s)
- Katherine A Graham
- Department of Chemistry, University of Nevada, 1664 N. Virginia Street, Reno, NV 89557, USA.
| | - Charles F Lawlor
- Department of Chemistry, University of Nevada, 1664 N. Virginia Street, Reno, NV 89557, USA.
| | - Nicholas B Borotto
- Department of Chemistry, University of Nevada, 1664 N. Virginia Street, Reno, NV 89557, USA.
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72
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Butré CI, D'Atri V, Diemer H, Colas O, Wagner E, Beck A, Cianferani S, Guillarme D, Delobel A. Interlaboratory Evaluation of a User-Friendly Benchtop Mass Spectrometer for Multiple-Attribute Monitoring Studies of a Monoclonal Antibody. Molecules 2023; 28:molecules28062855. [PMID: 36985827 PMCID: PMC10053224 DOI: 10.3390/molecules28062855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Revised: 03/17/2023] [Accepted: 03/19/2023] [Indexed: 03/30/2023] Open
Abstract
In the quest to market increasingly safer and more potent biotherapeutic proteins, the concept of the multi-attribute method (MAM) has emerged from biopharmaceutical companies to boost the quality-by-design process development. MAM strategies rely on state-of-the-art analytical workflows based on liquid chromatography coupled to mass spectrometry (LC-MS) to identify and quantify a selected series of critical quality attributes (CQA) in a single assay. Here, we aimed at evaluating the repeatability and robustness of a benchtop LC-MS platform along with bioinformatics data treatment pipelines for peptide mapping-based MAM studies using standardized LC-MS methods, with the objective to benchmark MAM methods across laboratories, taking nivolumab as a case study. Our results evidence strong interlaboratory consistency across LC-MS platforms for all CQAs (i.e., deamidation, oxidation, lysine clipping and glycosylation). In addition, our work uniquely highlights the crucial role of bioinformatics postprocessing in MAM studies, especially for low-abundant species quantification. Altogether, we believe that MAM has fostered the development of routine, robust, easy-to-use LC-MS platforms for high-throughput determination of major CQAs in a regulated environment.
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Affiliation(s)
- Claire I Butré
- Quality Assistance sa, Technoparc de Thudinie 2, 6536 Thuin, Belgium
| | - Valentina D'Atri
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Hélène Diemer
- Laboratoire de Spectrométrie de Masse BioOrganique, Université de Strasbourg, CNRS, IPHC UMR 7178, 67000 Strasbourg, France
- Infrastructure Nationale de Protéomique ProFI-FR2048, 67087 Strasbourg, France
| | - Olivier Colas
- Biologics CMC and Developability, IRPF, Centre d'Immunologie Pierre Fabre, 5 Avenue Napoleon III, 74160 Saint-Julien en Genevois, France
| | - Elsa Wagner
- Biologics CMC and Developability, IRPF, Centre d'Immunologie Pierre Fabre, 5 Avenue Napoleon III, 74160 Saint-Julien en Genevois, France
| | - Alain Beck
- Biologics CMC and Developability, IRPF, Centre d'Immunologie Pierre Fabre, 5 Avenue Napoleon III, 74160 Saint-Julien en Genevois, France
| | - Sarah Cianferani
- Laboratoire de Spectrométrie de Masse BioOrganique, Université de Strasbourg, CNRS, IPHC UMR 7178, 67000 Strasbourg, France
- Infrastructure Nationale de Protéomique ProFI-FR2048, 67087 Strasbourg, France
| | - Davy Guillarme
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Arnaud Delobel
- Quality Assistance sa, Technoparc de Thudinie 2, 6536 Thuin, Belgium
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Shen G, Moua KTY, Perkins K, Johnson D, Li A, Curtin P, Gao W, McCune JS. Precision sirolimus dosing in children: The potential for model-informed dosing and novel drug monitoring. Front Pharmacol 2023; 14:1126981. [PMID: 37021042 PMCID: PMC10069443 DOI: 10.3389/fphar.2023.1126981] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Accepted: 02/14/2023] [Indexed: 04/07/2023] Open
Abstract
The mTOR inhibitor sirolimus is prescribed to treat children with varying diseases, ranging from vascular anomalies to sporadic lymphangioleiomyomatosis to transplantation (solid organ or hematopoietic cell). Precision dosing of sirolimus using therapeutic drug monitoring (TDM) of sirolimus concentrations in whole blood drawn at the trough (before the next dose) time-point is the current standard of care. For sirolimus, trough concentrations are only modestly correlated with the area under the curve, with R 2 values ranging from 0.52 to 0.84. Thus, it should not be surprising, even with the use of sirolimus TDM, that patients treated with sirolimus have variable pharmacokinetics, toxicity, and effectiveness. Model-informed precision dosing (MIPD) will be beneficial and should be implemented. The data do not suggest dried blood spots point-of-care sampling of sirolimus concentrations for precision dosing of sirolimus. Future research on precision dosing of sirolimus should focus on pharmacogenomic and pharmacometabolomic tools to predict sirolimus pharmacokinetics and wearables for point-of-care quantitation and MIPD.
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Affiliation(s)
- Guofang Shen
- Department of Hematologic Malignancies Translational Sciences, City of Hope, and Department of Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, CA, United States
| | - Kao Tang Ying Moua
- Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Kathryn Perkins
- Alfred E. Mann School of Pharmacy and Pharmaceutical Sciences, University of Southern California, Los Angeles, CA, United States
| | - Deron Johnson
- Clinical Informatics, City of Hope Medical Center, Duarte, CA, United States
| | - Arthur Li
- Division of Biostatistics, City of Hope, Duarte, CA, United States
| | - Peter Curtin
- Department of Hematologic Malignancies Translational Sciences, City of Hope, and Department of Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, CA, United States
| | - Wei Gao
- Division of Engineering and Applied Science, Andrew and Peggy Cherng Department of Medical Engineering, California Institute of Technology, Pasadena, CA, United States
| | - Jeannine S. McCune
- Department of Hematologic Malignancies Translational Sciences, City of Hope, and Department of Hematopoietic Cell Transplantation, City of Hope Medical Center, Duarte, CA, United States
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74
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Derobertmasure A, Kably B, Justin J, De Sousa Carvalho C, Billaud EM, Boutouyrie P. Dried Urine Spot Analysis for assessing cardiovascular drugs exposure applicable in spaceflight conditions. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1219:123539. [PMID: 36867996 DOI: 10.1016/j.jchromb.2022.123539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Revised: 10/24/2022] [Accepted: 11/12/2022] [Indexed: 12/13/2022]
Abstract
Cardiovascular pharmacological countermeasures will be required as a preventive measure of cardiovascular deconditioning and early vascular ageing for long term space travelers. Physiological changes during spaceflight could have severe implications on drug pharmacokinetics and pharmacodynamics (PK/PD). However, limitations exist for the implementation of drug studies due to the requirements and constraints of this extreme environment. Therefore, we developed an easy sampling method on dried urine spot (DUS), for the simultaneous quantification of 5 antihypertensive drugs in human urine: irbesartan, valsartan, olmesartan, metoprolol and furosemide analyzed by liquid chromatography-tandem mass spectrometry (LC-MS/MS), considering spaceflight parameters. This assay was validated in terms of linearity, accuracy, and precision with satisfactory results. There were no relevant carry-over, matrix interferences. The targeted drugs were stable in urine collected by DUS until 6 months at +21 °C, +4°C, -20 °C (with or without desiccants) and at 30 °C during 48 h. Irbesartan, valsartan and olmesartan were not stable at 50 °C during 48 h. This method was found to be eligible for space pharmacology studies in terms of practicality, safety, robustness and energy costs. It has been successfully implemented in space tests programs led in 2022.
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Affiliation(s)
- Audrey Derobertmasure
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France; INSERM PARCC UMRS970, Paris, France
| | - Benjamin Kably
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France; INSERM PARCC UMRS970, Paris, France
| | - Junior Justin
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France
| | - Christelle De Sousa Carvalho
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France
| | - Eliane M Billaud
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France; Université de Paris, Paris, France
| | - Pierre Boutouyrie
- Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU BIOPHYGEN, Paris, France; INSERM PARCC UMRS970, Paris, France; Assistance Publique des Hôpitaux de Paris, Hôpital Européen Georges Pompidou, Pharmacology Unit and DMU CARTE, Paris, France; Université de Paris, Paris, France.
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75
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Abarca R, Gerona R. Development and validation of an LC-MS/MS assay for the quantitative analysis of alprazolam, α-hydroxyalprazolam and hydrocodone in dried blood spots. J Chromatogr B Analyt Technol Biomed Life Sci 2023; 1220:123639. [PMID: 36906954 DOI: 10.1016/j.jchromb.2023.123639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 02/03/2023] [Accepted: 02/14/2023] [Indexed: 03/07/2023]
Abstract
Dried blood spot (DBS) has been used as an alternative matrix in drug testing. In forensic testing it offers enhanced stability of analytes and ease of storage that requires minimal space. This is compatible with long term archiving of large numbers of samples for future investigation. We employed liquid chromatography-tandem mass spectrometry (LC-MS/MS) to quantify alprazolam, α-hydroxyalprazolam, and hydrocodone in a DBS sample that has been stored for 17 years. We achieved linear dynamic ranges (0.1-50 ng/mL) that capture wide ranges of concentration of the analytes below and above their reported reference ranges, and limits of detection (0.05 ng/mL) of 40-100X lower than the lower limit of the analyte's reference ranges. The method was validated according to FDA and CLSI guidelines and successfully confirmed and quantified alprazolam and α-hydroxyalprazolam in a forensic DBS sample.
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Affiliation(s)
- Radek Abarca
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, USA
| | - Roy Gerona
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California San Francisco, USA.
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76
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Development and Validation of a Rapid LC-MS/MS Method for Quantifying Alvocidib: In Silico and In Vitro Metabolic Stability Estimation in Human Liver Microsomes. Molecules 2023; 28:molecules28052368. [PMID: 36903615 PMCID: PMC10004750 DOI: 10.3390/molecules28052368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Revised: 02/24/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Alvocidib (AVC; flavopiridol) is a potent cyclin-dependent kinase inhibitor used in patients with acute myeloid leukemia (AML). The FDA has approved orphan drug designation to AVC for treating patients with AML. In the current work, the in silico calculation of AVC metabolic lability was done using the P450 metabolism module of the StarDrop software package, that is expressed as a composite site lability (CSL). This was followed by establishing an LC-MS/MS analytical method for AVC estimation in human liver microsomes (HLMs) to assess metabolic stability. AVC and glasdegib (GSB), used as internal standards (IS), were separated utilizing a C18 column (reversed chromatography) with an isocratic mobile phase. The lower limit of quantification (LLOQ) was 5.0 ng/mL, revealing the sensitivity of the established LC-MS/MS analytical method that exhibited a linearity in the range 5-500 ng/mL in the HLMs matrix with correlation coefficient (R2 = 0.9995). The interday and intraday accuracy and precision of the established LC-MS/MS analytical method were -1.4% to 6.7% and -0.8% to 6.4%, respectively, confirming the reproducibility of the LC-MS/MS analytical method. The calculated metabolic stability parameters were intrinsic clearance (CLint) and in vitro half-life (t1/2) of AVC at 26.9 µL/min/mg and 25.8 min, respectively. The in silico results from the P450 metabolism model matched the results generated from in vitro metabolic incubations; therefore, the in silico software can be used to predict the metabolic stability of the drugs, saving time and resources. AVC exhibits a moderate extraction ratio, indicating reasonable in vivo bioavailability. The established chromatographic methodology was the first LC-MS/MS method designed for AVC estimation in HLMs matrix that was applied for AVC metabolic stability estimation.
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Production of (10S,11S)-(—)-epi-Pyriculol and Its HPLC Quantification in Liquid Cultures of Pyricularia grisea, a Potential Mycoherbicide for the Control of Buffelgrass (Cenchrus ciliaris). J Fungi (Basel) 2023; 9:jof9030316. [PMID: 36983484 PMCID: PMC10056936 DOI: 10.3390/jof9030316] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2023] [Revised: 02/23/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
(10S,11S)-(—)-epi-pyriculol is a phytotoxic metabolite produced by Pyricularia grisea, a fungus identified as a foliar pathogen on the invasive weed species buffelgrass (Cenchrus ciliaris) in North America. The effective control of buffelgrass has not yet been achieved, and there is a need to develop effective and green solutions. Herbicides based on natural products and the use of phytopathogenic organisms could provide the most suitable tools for the control of weeds such as buffelgrass. Thus, one of the most relevant points to study about potential suitable phytotoxins such as (10S,11S)-(—)-epi-pyriculol is its production on a large scale, either by isolation from fungal fermentations or by synthesis. For these purposes, rapid and sensitive methods for the quantification of (10S,11S)-(—)-epi-pyriculol in complex mixtures are required. In this study, a high-pressure liquid chromatography (HPLC) method for its quantification was developed and applied to organic extracts from twelve P. grisea isolates obtained from diseased buffelgrass leaves and grown in potato dextrose broth (PDB) liquid cultures. The analysis proved that the production of (10S,11S)-(—)-epi-pyriculol is fungal-isolate dependent and strongly correlated with phytotoxic activity, shown by the P. grisea organic extracts in a buffelgrass radicle elongation test. The HPLC method reported herein allowed us to select the best strain for the production of (10S,11S)-(—)-epi-pyriculol and could be useful for selecting the best cultural conditions for its mass production, providing a tool for the use of this promising metabolite as a new bioherbicide for the control of buffelgrass.
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Development of an LC-MS/MS Method for Quantification of Sapitinib in Human Liver Microsomes: In Silico and In Vitro Metabolic Stability Evaluation. Molecules 2023; 28:molecules28052322. [PMID: 36903565 PMCID: PMC10005647 DOI: 10.3390/molecules28052322] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 02/28/2023] [Accepted: 02/28/2023] [Indexed: 03/06/2023] Open
Abstract
Sapitinib (AZD8931, SPT) is a tyrosine kinase inhibitor of the epidermal growth factor receptor (EGFR) family (pan-erbB). In multiple tumor cell lines, STP has been shown to be a much more potent inhibitor of EGF-driven cellular proliferation than gefitinib. In the current study, a highly sensitive, rapid, and specific LC-MS/MS analytical method for the estimation of SPT in human liver microsomes (HLMs) was established with application to metabolic stability assessment. The LC-MS/MS analytical method was validated in terms of linearity, selectivity, precision, accuracy, matrix effect, extraction recovery, carryover, and stability following the FDA guidelines for bioanalytical method validation. SPT was detected using electrospray ionization (ESI) as an ionization source under multiple reaction monitoring (MRM) in the positive ion mode. The IS-normalized matrix factor and extraction recovery were acceptable for the bioanalysis of SPT. The SPT calibration curve was linear, from 1 ng/mL to 3000 ng/mL HLM matrix samples, with a linear regression equation of y = 1.7298x + 3.62941 (r2 = 0.9949). The intraday and interday accuracy and precision values of the LC-MS/MS method were -1.45-7.25% and 0.29-6.31%, respectively. SPT and filgotinib (FGT) (internal standard; IS) were separated through the use of an isocratic mobile phase system with a Luna 3 µm PFP(2) column (150 × 4.6 mm) stationary phase column. The limit of quantification (LOQ) was 0.88 ng/mL, confirming the LC-MS/MS method sensitivity. The intrinsic clearance and in vitro half-life of STP were 38.48 mL/min/kg and 21.07 min, respectively. STP exhibited a moderate extraction ratio that revealed good bioavailability. The literature review demonstrated that the current analytical method is the first developed LC-MS/MS method for the quantification of SPT in an HLM matrix with application to SPT metabolic stability evaluation.
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79
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Costa-Pérez A, Medina S, Sánchez-Bravo P, Domínguez-Perles R, García-Viguera C. The (Poly)phenolic Profile of Separate Winery By-Products Reveals Potential Antioxidant Synergies. Molecules 2023; 28:2081. [PMID: 36903327 PMCID: PMC10004379 DOI: 10.3390/molecules28052081] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2023] [Revised: 02/15/2023] [Accepted: 02/21/2023] [Indexed: 02/25/2023] Open
Abstract
The by-products of grapes (Vitis vinifera L.) in the winemaking process present a diverse phytochemical profile of (poly)phenols, essentially represented by phenolic acids, flavonoids, and stilbenes, which have health benefits. In winemaking, solid (grape stems and pomace) and semisolid (wine lees) by-products are generated, negatively impacting the sustainability of the agro-food activity and the local environment. Although information on the phytochemical profile of grape stems and pomace has been reported, especially information concerning (poly)phenols, research on wine lees is necessary to take advantage of the compositional traits of this residue. So, in the present work, an updated, in-depth comparison of the (poly)phenolic profiles of these three resulting matrices in the agro-food industry has been carried out to provide new knowledge and interesting data on the action of yeast and lactic acid bacteria (LAB) metabolism in the diversification of phenolic composition; additionally, we extract complementarities for the possible joint application of the three residues. The phytochemical analysis of the extracts was carried out using HPLC-PDA-ESI-MSn. The (poly)phenolic profiles of the residues showed significant discrepancies. The results obtained showed that the greatest diversity of (poly)phenols was found in the stems of the grapes, followed closely by the lees. Through technological insights, it has been suggested that yeasts and LAB, responsible for the fermentation of must, might play a key role in the transformation of phenolic compounds. This would provide new molecules with specific bioavailability and bioactivity features, which might interact with different molecular targets and, consequently, improve the biological potential of these underexploited residues.
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Affiliation(s)
- Antonio Costa-Pérez
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Departmento de Ciencia y Tecnología de Alimentos, CEBAS-CSIC, Campus of the University of Murcia-25, 30100 Espinardo, Murcia, Spain
| | - Sonia Medina
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Departmento de Ciencia y Tecnología de Alimentos, CEBAS-CSIC, Campus of the University of Murcia-25, 30100 Espinardo, Murcia, Spain
| | - Paola Sánchez-Bravo
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Departmento de Ciencia y Tecnología de Alimentos, CEBAS-CSIC, Campus of the University of Murcia-25, 30100 Espinardo, Murcia, Spain
- Department of Food Technology, EPSO, University Miguel Hernández, Ctra Beniel km 3.2, 03312 Orihuela, Alicante, Spain
| | - Raúl Domínguez-Perles
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Departmento de Ciencia y Tecnología de Alimentos, CEBAS-CSIC, Campus of the University of Murcia-25, 30100 Espinardo, Murcia, Spain
| | - Cristina García-Viguera
- Laboratorio de Fitoquímica y Alimentos Saludables (LabFAS), Departmento de Ciencia y Tecnología de Alimentos, CEBAS-CSIC, Campus of the University of Murcia-25, 30100 Espinardo, Murcia, Spain
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Green Automated Solid Phase Extraction to Measure Levofloxacin in Human Serum via Liquid Chromatography with Fluorescence Detection for Pharmacokinetic Study. SEPARATIONS 2023. [DOI: 10.3390/separations10020136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023] Open
Abstract
A simple, selective, rapid, sensitive and less costly green automated solid phase extraction bio-analytical high-performance liquid chromatographic-based technique with fluorescence detection (Aut-SPE-BA-HPLC-FL) for the quantification of levofloxacin in human serum samples has been developed and validated. The serum samples were loaded into the chromatographic system without prior treatment and then injected into short (20 mm × 4.6 mm, 20 µm) protein-coated (PC) µBondapak CN (µBCN) silica pre-column (PC-µBCN-pre-column). Levofloxacin was retained and pre-concentrated on the head of the PC-µBCN-pre-column, while proteins and other polar components were eliminated using phosphate buffer saline (PBS), pH 7.4, as the first mobile phase in the extraction step. Levofloxacin is then transferred to the analytical column; ZORBAX Eclipse XDB-C18 (150 mm × 46 mm, 5 µm), through the aid of a column-switching valve technique, on-throughs the elution mode using the second mobile phase containing a methanol and phosphate buffer (0.05 M, pH 5) in a ratio of 70:30 (v/v). Levofloxacin signals were detected using a fluorescence detector operated at excitation/emission wavelengths of 295/500 nm. The proposed Aut-SPE-BA-HPLC-FL methodology showed linearity over a levofloxacin concentration range of 10–10,000 ng/mL (r2 = 0.9992), with good recoveries ranging from 87.12 to 97.55%. Because of the validation qualities in terms of linearity, recovery, precision, accuracy, selectivity and robustness, the Aut-SPE-BA-HPLC-FL method has been used in some clinical trials for therapeutic drug monitoring and the pharmacokinetic study of levofloxacin in human serum.
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81
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Metabolomics-Based Profiling via a Chemometric Approach to Investigate the Antidiabetic Property of Different Parts and Origins of Pistacia lentiscus L. Metabolites 2023; 13:metabo13020275. [PMID: 36837894 PMCID: PMC9960292 DOI: 10.3390/metabo13020275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2022] [Revised: 02/03/2023] [Accepted: 02/07/2023] [Indexed: 02/17/2023] Open
Abstract
Pistacia lentiscus L. is a medicinal plant that grows spontaneously throughout the Mediterranean basin and is traditionally used to treat diseases, including diabetes. The aim of this work consists of the evaluation of the α-glucosidase inhibitory effect (i.e., antidiabetic activity in vitro) of different extracts from the leaves, stem barks and fruits of P. lentiscus harvested on mountains and the littoral of Tizi-Ouzou in Algeria. Metabolomic profiling combined with a chemometric approach highlighted the variation of the antidiabetic properties of P. lentiscus according to the plant's part and origin. A multiblock OPLS analysis showed that the metabolites most involved in α-glucosidase inhibition activity were mainly found in the stem bark extracts. The highest inhibitory activity was found for the stem bark extracts, with averaged inhibition percentage values of 84.7% and 69.9% for the harvested samples from the littoral and mountain, respectively. On the other hand, the fruit extracts showed a lower effect (13.6%) at both locations. The UHPLC-ESI-HRMS characterization of the metabolites most likely responsible for the α-glucosidase-inhibitory activity allowed the identification of six compounds: epigallocatechin(4a>8)epigallocatechin (two isomers), (epi)gallocatechin-3'-O-galloyl-(epi)gallocatechin (two isomers), 3,5-O-digalloylquinic acid and dihydroxy benzoic acid pentoside.
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Faugere J, Brunet TA, Clément Y, Espeyte A, Geffard O, Lemoine J, Chaumot A, Degli-Esposti D, Ayciriex S, Salvador A. Development of a multi-omics extraction method for ecotoxicology: investigation of the reproductive cycle of Gammarus fossarum. Talanta 2023; 253:123806. [PMID: 36113334 DOI: 10.1016/j.talanta.2022.123806] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/24/2022] [Accepted: 07/29/2022] [Indexed: 12/13/2022]
Abstract
Omics study exemplified by proteomics, lipidomics or metabolomics, provides the opportunity to get insight of the molecular modifications occurring in living organisms in response to contaminants or in different physiological conditions. However, individual omics discloses only a single layer of information leading to a partial image of the biological complexity. Multiplication of samples preparation and processing can generate analytical variations resulting from several extractions and instrumental runs. To get all the -omics information at the proteins, metabolites and lipids level coming from a unique sample, a specific sample preparation must be optimized. In this study, we streamlined a biphasic extraction procedure based on a MTBE/Methanol mixture to provide the simultaneous extraction of polar (proteins, metabolites) and apolar compounds (lipids) for multi-omics analyses from a unique biological sample by a liquid chromatography (LC)/mass spectrometry (MS)/MS-based targeted approach. We applied the methodology for the study of female amphipod Gammarus fossarum during the reproductive cycle. Multivariate data analyses including Partial Least Squares Discriminant Analysis and multiple factor analysis were applied for the integration of the multi-omics data sets and highlighted molecular signatures, specific to the different stages.
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Affiliation(s)
- Julien Faugere
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France
| | - Thomas Alexandre Brunet
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France
| | - Yohann Clément
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France
| | - Anabelle Espeyte
- INRAE, UR RiverLy, Laboratoire D'écotoxicologie, F-69625, Villeurbanne, France
| | - Olivier Geffard
- INRAE, UR RiverLy, Laboratoire D'écotoxicologie, F-69625, Villeurbanne, France
| | - Jérôme Lemoine
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France
| | - Arnaud Chaumot
- INRAE, UR RiverLy, Laboratoire D'écotoxicologie, F-69625, Villeurbanne, France
| | | | - Sophie Ayciriex
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France
| | - Arnaud Salvador
- Université de Lyon, Université Claude Bernard Lyon 1, Institut des Sciences Analytiques, CNRS UMR 5280, 5 Rue de La Doua, F-69100, Villeurbanne, France.
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Determination of Ruboxistaurin analysis in rat plasma utilizing LC–MS/MS technique. Saudi Pharm J 2023; 31:547-553. [PMID: 37063445 PMCID: PMC10102418 DOI: 10.1016/j.jsps.2023.02.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2023] [Accepted: 02/20/2023] [Indexed: 03/06/2023] Open
Abstract
Background Ruboxistaurin (RBX) used to treat retinopathy in diabetic patients which caused by microvascular damage and leakage which contributes to visual loss. There are no published studies on the use of liquid chromatography-tandem mass spectrometry for development and validation of a simple, sensitive, and accurate method for measuring RBX in rat plasma. Method Chromatographic separation of RBX was achieved using ultra-performance liquid chromatography. Multiple-reaction monitoring quantification used RBX [M + H] + ion at m/z 469.18 and daughter ions at m/z 84, 58.12, and 98.10. Atorvastatin was used as internal standard (IS), has a single daughter ion, and was identified using m/z 559.6 → 249.9. Validation of the liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for RBX in rat plasma for linearity (greater than0.997) was carried out at 25-1000 ng/mL. Results In rat plasma, the accuracy was within 3.4%, and the intra- and inter-day precision was within 11.8%. Stability, recovery, and matrix effect were all within acceptable limits. The drug retention time (0.85 ± 0.03 min) was remarkably short. Conclusion The method developed in the current study is suitable to quantify RBX in plasma or bulk doses.
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Schuster J, Kamuju V, Mathaes R. Protein Stability After Administration: A Physiologic Consideration. J Pharm Sci 2023; 112:370-376. [PMID: 36202247 DOI: 10.1016/j.xphs.2022.09.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 09/30/2022] [Accepted: 09/30/2022] [Indexed: 11/05/2022]
Abstract
Regulatory authorities and the scientific community have identified the need to monitor the in vivo stability of therapeutic proteins (TPs). Due to the unique physiologic conditions in patients, the stability of TPs after administration can deviate largely from their stability under drug product (DP) conditions. TPs can degrade at substantial rates once immersed in the in vivo milieu. Changes in protein stability upon administration to patients are critical as they can have implications on patient safety and clinical effectiveness of DPs. Physiologic conditions are challenging to simulate and require dedicated in vitro models for specific routes of administration. Advancements of in vitro models enable to simulate the exposure to physiologic conditions prior to resource demanding pre-clinical and clinical studies. This enables to evaluate the in vivo stability and thus may allow to improve the safety/efficacy profile of DPs. While in vitro-in vivo correlations are challenging, benchmarking DP candidates enables to identify liabilities and optimize molecules. The in vivo stability should be an integral part of holistic stability assessments during early development. Such assessments can accelerate development timelines and lead to more stable DPs for patients.
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Affiliation(s)
- Joachim Schuster
- Lonza Pharma and Biotech, Drug Product Services, Basel, Switzerland.
| | - Vinay Kamuju
- Lonza Pharma and Biotech, Drug Product Services, Basel, Switzerland
| | - Roman Mathaes
- Lonza Pharma and Biotech, Drug Product Services, Basel, Switzerland
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Brennan J, Henke A, Gale R, Nicks D, Tillitt D. Comparison of Two Estrogen Chemically Activated Luciferase Expression Cell Bioassays to Liquid Chromatography-Mass Spectrometry for Quantifying Estrone in Water Samples. ENVIRONMENTAL TOXICOLOGY AND CHEMISTRY 2023; 42:333-339. [PMID: 36541329 PMCID: PMC11418611 DOI: 10.1002/etc.5541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 08/19/2022] [Accepted: 12/11/2022] [Indexed: 06/17/2023]
Abstract
Chemically activated luciferase expression (CALUX) cell bioassays are popular tools for assessing endocrine activity of chemicals such as certain environmental contaminants. Although activity equivalents can be obtained from CALUX analysis, directly comparing these equivalents to those obtained from analytical chemistry methods can be problematic because of the complexity of endocrine active pathways. We explored the suitability of two estrogen CALUX bioassays (the Organisation for Economic Co-operation and Development-approved VM7Luc4E2 cell bioassay and the VM7LucERβc9 cell bioassay) for quantitation of estrogen. Quadrupole-time of flight ultraperformance liquid chromatography-mass spectrometry (LC/MS) was selected as a comparative method. Regression analysis of measured estrone (E1) calibration samples showed all three methods to be highly predictive of nominal concentrations (p ≤ 7.5 × 10-51 ). Extracts of water sampled from laboratory dilutor tanks containing E1 at 0, 20, and 200 ng/L alone and in combination with atrazine were selected to test the quantitative capabilities of the CALUX assays. Process controls (0 and 100 ng E1/L) and a separate E1 standard (10 ng/ml, used to prepare the E1 process control) were also tested. Levels of E1 determined by LC/MS analysis and bioanalytical equivalents (ng E1/L) determined by CALUX analyses were comparable except in certain instances where the samples required dilution prior to CALUX analyses (e.g., the E1 process control and E1 standard). In those instances, measurements by CALUX were slightly but significantly decreased relative to LC/MS. Atrazine had no effect on the ability of either LC/MS or the CALUX bioassays to quantify E1. The present study illustrates the CALUX bioassays as successful in quantifying an estrogen in simple water samples and further characterizes their utility for screening. Environ Toxicol Chem 2023;42:333-339. Published 2022. This article is a U.S. Government work and is in the public domain in the USA.
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Affiliation(s)
- Jennifer Brennan
- U.S. Geological Survey Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO USA
| | - Abigail Henke
- U.S. Geological Survey Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO USA
| | - Robert Gale
- U.S. Geological Survey Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO USA
| | - Diane Nicks
- U.S. Geological Survey Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO USA
| | - Donald Tillitt
- U.S. Geological Survey Columbia Environmental Research Center, 4200 New Haven Road, Columbia, MO USA
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Can Celecoxib Assay in Preclinical Studies Be Improved? Processes (Basel) 2023. [DOI: 10.3390/pr11020431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
Celecoxib, a cyclooxygenase-2 inhibitor (COX-2), is attracting considerable interest owing to its potential anticancer activity. The repurposing strategy of this drug, however, requires preclinical assessment involving the use of increasingly improved analytical methods. In this work, a rapid, accurate, precise, and sensitive reversed-phase high-performance liquid chromatography (RP-HPLC) method was developed for the quantification of celecoxib in five mouse matrices (plasma, brain, spleen, liver, and kidney). Chromatographic separation was achieved within 8 min on a reversed-phase C18 column at 35 °C using a mixture of acetonitrile and 2% (v/v) acetic acid (50:50) as mobile phase, at a flow rate of 0.6 mL/min. Celecoxib and curcumin, as the internal standard, were analyzed at 425 nm and 250 nm, respectively. Linearity was observed (r2 ≥ 0.996) in the concentration ranges selected for celecoxib. Overall precision was below 14.9%, and accuracy was between −14.9% and 13.2%. The acceptance criteria specified in FDA and EMA guidelines were met. Celecoxib was reproducibly recovered (≥84%) and showed stability in all biological matrices at room temperature for 24 h. The method was then effectively applied for the quantification of celecoxib to understand in vivo biodistribution following its intraperitoneal administration in mice.
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Qualitative and Quantitative Mass Spectrometry in Salivary Metabolomics and Proteomics. Metabolites 2023; 13:metabo13020155. [PMID: 36837774 PMCID: PMC9964739 DOI: 10.3390/metabo13020155] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/11/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023] Open
Abstract
The metabolomics and proteomics analysis of saliva, an excellent biofluid that is a rich source of biological compounds, allows for the safe and frequent screening of drugs, their metabolites, and molecular biomarkers of various diseases. One of the most frequently used analytical methods in saliva analysis is liquid chromatography coupled with mass spectrometry (LC-MS) and tandem mass spectrometry. The low ionisation efficiency of some compounds and a complex matrix makes their identification by MS difficult. Furthermore, quantitative analysis by LC-MS frequently cannot be performed without isotopically labelled standards, which usually have to be specially synthesised. This review presented reports on qualitative and quantitative approaches in salivary metabolomics and proteomics. The purpose of this manuscript was to present the challenges, advances, and future prospects of mass spectrometry, both in the analysis of salivary metabolites and proteins. The presented review should appeal to those interested in the recent advances and trends in qualitative and quantitative mass spectrometry in salivary metabolomics and proteomics, which may facilitate a diagnostic accuracy, the evaluation of treatment efficacy, the early diagnosis of disease, and a forensic investigation of some unapproved drugs for any medical or dietary administration.
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Hsueh TP, Tsai TH. Exploration of sodium homeostasis and pharmacokinetics in bile duct-ligated rats treated by anti-cirrhosis herbal formula plus spironolactone. Front Pharmacol 2023; 14:1092657. [PMID: 36744253 PMCID: PMC9889864 DOI: 10.3389/fphar.2023.1092657] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Accepted: 01/03/2023] [Indexed: 01/19/2023] Open
Abstract
Renal sodium retention is an essential indicator that is used for the prognosis of cirrhosis with ascites that requires diuretic treatment to restore sodium homeostasis. The diuretic effects of Yin-Chen-Hao-Tang (YCHT) alone or in combination with diuretics for sodium retention in patients with cirrhosis have not been investigated. This study aimed to investigate the diuretic effects and sodium retention caused by YCHT with spironolactone, from both the pharmacokinetic and pharmacodynamic perspective, in bile duct-ligated rats. The HPLC method was validated and utilized for the pharmacokinetic analysis of rat urine. Urine samples were collected and analyzed every 4 hours for 32 h after oral administration of YCHT at 1 or 3 g/kg daily for 5 days in bile duct-ligated rats. A dose of 20 mg/kg spironolactone was also administered to pretreat the YCHT 1 g/kg or the 3 g/kg group on the 5th day to explore the interaction of the two treatments. Urine sodium, potassium, weight, volume, and spironolactone and canrenone levels were measured to investigate fluid homeostasis after the coadministration. The linearity, precision, and accuracy of the HPLC method were suitable for subsequent urinary pharmacokinetic analyses. The pharmacokinetic parameters in the 1 g/kg YCHT with spironolactone group revealed that the elimination half-life of the spironolactone metabolite, canrenone, was prolonged. In addition, the cumulative excretion amount, the area under the rate curve (AURC), and the maximum rate of excretion (Rmax) were significantly decreased when the spironolactone group was pretreated with 3 g/kg YCHT. Urinary sodium excretion elicited by spironolactone was suppressed by pretreatment with 1 or 3 g/kg YCHT. The 32-hour urine output was not altered by the administration of YCHT alone, but it was significantly decreased by 64.9% after the coadministration of YCHT with spironolactone. The interaction of spironolactone and YCHT was found to decrease urine sodium-potassium and water excretion, and this change was attributed to the decreased level of spironolactone metabolites and possibly the regulation of the renin-angiotensin-aldosterone system by obstructed cirrhosis. The dose adjustment of YCHT or diuresis monitoring should be noted when co-administering YCHT and spironolactone to treat hepatic diseases clinically.
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Affiliation(s)
- Tun-Pin Hsueh
- Department of Chinese Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan,School of Chinese Medicine, Chang Gung University, Taoyuan, Taiwan,Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Tung-Hu Tsai
- Institute of Traditional Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan,Graduate Institute of Acupuncture Science, China Medical University, Taichung, Taiwan,School of Pharmacy, Kaohsiung Medical University, Kaohsiung, Taiwan,*Correspondence: Tung-Hu Tsai,
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Song J, Liao W, Deng X, Zhang D, Lin J, Xu R, Han L. Analysis of the pharmacodynamic difference between Xiaojin Pills taken with Chinese Baijiu and water based on serum pharmacochemistry and pharmacokinetics. JOURNAL OF ETHNOPHARMACOLOGY 2023; 300:115723. [PMID: 36115600 DOI: 10.1016/j.jep.2022.115723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/17/2022] [Revised: 09/02/2022] [Accepted: 09/10/2022] [Indexed: 06/15/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Xiaojin Pills (XJPs), which has the function of dissipating knots and dispersing swelling, removing blood stasis, and relieving pain, is a classic prescription for the treatment of mammary glands hyperplasia. It is also the first choice of Chinese patent medicine for the clinical treatment of mammary glands hyperplasia in contemporary traditional Chinese medicine clinics. Previous studies have shown that the efficacy of XJPs "taken orally after soaked with Chinese Baijiu" in tradition was significantly better than that of taking it orally with water in modern in terms of activating the blood, anti-inflammation, analgesia, anti-mammary gland hyperplasia, anti-breast cancer and its metastasis in vitro and in vivo, especially under low-dose conditions. However, the material basis for the difference in efficacy between XJP&B and XJP&W is still unclear. AIM OF THE STUDY To analyze the material basis of the significant difference in efficacy between XJP&B and XJP&W from the perspective of serum pharmacochemistry and pharmacokinetics, and clarified the scientific connotation of XJPs "taken orally after soaked with Chinese Baijiu". MATERIALS AND METHODS Ultra-high performance liquid chromatography-mass spectrometry combined with a multivariate statistical analysis method were used to screen the differential components in the Chinese Baijiu extract and the water extract of XJPs and the corresponding residues, so as to clarify the differential components between XJP&B and XJP&W in vitro. The migrating components in the blood after XJP&B and XJP&W were characterized by serum pharmacochemical methods, in order to clarify the differential components in rats. The pharmacokinetic parameters of the representative components absorbed into the blood were compared between XJP&B and XJP&W by the pharmacokinetics study method, in order to determine the dynamic changes of the representative components in rats. RESULTS The identification results of different components in vitro showed that there were 34 and 12 different compounds between the Chinese Baijiu extract and water extract of XJPs, and the residues after Chinese Baijiu extraction and water extraction, respectively. The content of different components such as arachidonic acid, ursolic acid, 3-acetyl-11-keto-β-boswellic acid, 2α-hydroxyursolic acid, and oleanolic acid was higher in the Chinese Baijiu extract, which was more than twice the content in the water extract. The results of the serum pharmacochemistry study indicated that 42 prototype components were identified in the serum of rats after XJP&B and XJP&W, including organic acids, alkaloids, steroids, and terpenoids. And XJP&B increased the absorption of the prototype components of organic acids in XJPs into the blood. The pharmacokinetic study results of representative components demonstrated that the mean plasma concentration-time profile and pharmacokinetic parameters of muscone, aconitine, and 3-acetyl-11-keto-β-boswellic acid were significantly different between XJP&B and XJP&W. Compared with XJP&W, the Cmax and AUC0-t of muscone and aconitine in XJP&B were higher, and the T1/2 and MRT0-t of 3-acetyl-11-keto-β-boswellic acid in XJP&B were relatively longer. CONCLUSION This research proved that "taking XJPs orally after being soaked with Chinese Baijiu" can increase the dissolution and absorption of active ingredients in XJPs, increase the plasma concentration and content of representative ingredients, and prolong its action time, thus enhancing the biological activity of XJPs in vitro and in vivo. To a certain extent, this study revealed the material basis of the significantly better efficacy of XJP&B than XJP&W and clarified the scientific connotation of XJPs "taken orally after soaked with Chinese Baijiu", which can provide a theoretical basis for the optimization of XJPs' clinical administration method.
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Affiliation(s)
- Jiao Song
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Wei Liao
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Xuan Deng
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Dingkun Zhang
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China
| | - Junzhi Lin
- TCM Regulating Metabolic Diseases Key Laboratory of Sichuan Province, Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu, 610072, PR China.
| | - Runchun Xu
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
| | - Li Han
- State Key Laboratory of Southwestern Chinese Medicine Resources, Pharmacy School, Chengdu University of Traditional Chinese Medicine, Chengdu, 611137, PR China.
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Park DB, Kim L, Hwang JH, Kim KT, Park JE, Choi JS, An HJ. Temporal quantitative profiling of sialyllactoses and sialic acids after oral administration of sialyllactose to mini-pigs with osteoarthritis. RSC Adv 2023; 13:1115-1124. [PMID: 36686942 PMCID: PMC9811936 DOI: 10.1039/d2ra05912f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Accepted: 12/21/2022] [Indexed: 01/06/2023] Open
Abstract
Sialyllactose (SL) is the most abundant acidic oligosaccharide in human breast milk and plays a primary role in various biological processes. Recently, SL has attracted attention as an excellent dietary supplement for arthritis because it is effective in cartilage protection and treatment. Despite the superior function of SL, there are few pharmacological studies of SL according to blood concentrations in arthritis models. In this study, we investigated quantitative changes in SL and sialic acids in the plasma obtained from mini-pigs with osteoarthritis throughout exogenous administration of SL using liquid chromatography-multiple reaction monitoring mass spectrometry. Plasma concentrations of SL and sialic acids in the SL-fed group showed a significant difference compared to the control group. Mini pigs were fed only Neu5Ac bound to SL, but the concentration patterns of the two types of sialic acid, Neu5Ac and Neu5Gc, were similar. In addition, the relative mRNA expression level of matrix metalloproteinases (MMPs), which is known as a critical factor in cartilage matrix degradation, was remarkably decreased in the synovial membrane of the SL-fed group. Consequently, the temporal quantitative profiling suggests that dietary SL can be metabolized and utilized in the body and may protect against cartilage degradation by suppressing MMP expression during osteoarthritis progression.
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Affiliation(s)
- Dan Bi Park
- GeneChem Inc. Yuseong-gu Daejeon 34025 Republic of Korea
- Graduate School of Analytical Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
| | - Lila Kim
- GeneChem Inc. Yuseong-gu Daejeon 34025 Republic of Korea
| | - Jeong Ho Hwang
- Animal Model Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology Jeollabukdo 56212 Republic of Korea
| | - Kyung-Tai Kim
- Animal Model Research Group, Jeonbuk Branch Institute, Korea Institute of Toxicology Jeollabukdo 56212 Republic of Korea
| | - Ji Eun Park
- Graduate School of Analytical Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
- Asia Glycomics Reference Site Daejeon 34134 Republic of Korea
| | - Jong-Soon Choi
- Graduate School of Analytical Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
- Research Center for Materials Analysis, Korea Basic Science Institute Daejeon 34133 Republic of Korea
| | - Hyun Joo An
- Graduate School of Analytical Science and Technology, Chungnam National University Daejeon 34134 Republic of Korea
- Asia Glycomics Reference Site Daejeon 34134 Republic of Korea
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91
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Mary Rebecca Y, Sudha V, Bharathiraja T, Kannan T, Lavanya J, Hemanth Kumar AK. Urinary excretion of metformin in diabetic patients with and without tuberculosis. Indian J Tuberc 2023; 70:37-41. [PMID: 36740315 DOI: 10.1016/j.ijtb.2022.03.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 03/03/2022] [Indexed: 02/07/2023]
Abstract
BACKGROUND Patients with concurrent diabetes mellitus (DM) and tuberculosis (TB) pose an increased risk of treatment failure in TB and management of DM is complicated. Anti-diabetic and anti-TB drugs may interact with on another other when co-administered. The role of anti-TB drugs on the excretion of metformin in urine has not been studied. Therefore, we carried out a study in DM patients with and without TB to compare the percentage of metformin excreted in urine. METHODS A total of 52 DMTB and 17 DM patients were recruited in this study from the Chennai Corporation Centres. DM and DM - TB patients were administered the prescribed anti-TB and anti-diabetic drugs (metformin (MET), glipizide (GLP),glimepiride (GLM),glibenclamide (GLB),rifampicin (RMP),isoniazid (INH), pyrazinamide (PZA) and ethambutol (EMB). DM and DMTB patients received metformin (MET) alone and in combination with sulphonylureas as diabetic drugs. The urine samples were collected from 0 to 8 hours after drug administration. Urine MET excreted in DM and DMTB patients were estimated by high performance liquid chromatography (HPLC) and percent dose was calculated. RESULTS The percent dose of MET excreted in urine in DMTB patients was significantly higher when compared to DM patients. There is significant difference in the percent dose of MET excreted among DM patients with and without sulphonylureas, values being 23.3 and 17.7% respectively (p = 0.044). CONCLUSION This is the first study to report on the percent dose of MET excretion in urine in patients with DM and DMTB receiving MET along with anti-TB drugs.
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Affiliation(s)
- Y Mary Rebecca
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | - Vilvamani Sudha
- ICMR-National Institute for Research in Tuberculosis, Chennai, India
| | | | | | - J Lavanya
- Greater Chennai Corporation, Chennai, India
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92
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Deulofeu M, Peña-Méndez EM, Vaňhara P, Havel J, Moráň L, Pečinka L, Bagó-Mas A, Verdú E, Salvadó V, Boadas-Vaello P. Artificial Neural Networks Coupled with MALDI-TOF MS Serum Fingerprinting To Classify and Diagnose Pathological Pain Subtypes in Preclinical Models. ACS Chem Neurosci 2022; 14:300-311. [PMID: 36584284 PMCID: PMC9853500 DOI: 10.1021/acschemneuro.2c00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Pathological pain subtypes can be classified as either neuropathic pain, caused by a somatosensory nervous system lesion or disease, or nociplastic pain, which develops without evidence of somatosensory system damage. Since there is no gold standard for the diagnosis of pathological pain subtypes, the proper classification of individual patients is currently an unmet challenge for clinicians. While the determination of specific biomarkers for each condition by current biochemical techniques is a complex task, the use of multimolecular techniques, such as matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS), combined with artificial intelligence allows specific fingerprints for pathological pain-subtypes to be obtained, which may be useful for diagnosis. We analyzed whether the information provided by the mass spectra of serum samples of four experimental models of neuropathic and nociplastic pain combined with their functional pain outcomes could enable pathological pain subtype classification by artificial neural networks. As a result, a simple and innovative clinical decision support method has been developed that combines MALDI-TOF MS serum spectra and pain evaluation with its subsequent data analysis by artificial neural networks and allows the identification and classification of pathological pain subtypes in experimental models with a high level of specificity.
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Affiliation(s)
- Meritxell Deulofeu
- Research
Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department
of Medical Sciences, University of Girona, Girona, Catalonia 17003, Spain,Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5/A14, 625 00 Brno, Czech Republic,Department
of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic
| | - Eladia M. Peña-Méndez
- Department
of Chemistry, Analytical Chemistry Division, Faculty of Sciences, University of La Laguna, 38204 San Cristóbal de
La Laguna, Tenerife, Spain
| | - Petr Vaňhara
- Department
of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic,International
Clinical Research Center, St. Anne’s
University Hospital, 656
91 Brno, Czech Republic
| | - Josef Havel
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5/A14, 625 00 Brno, Czech Republic,International
Clinical Research Center, St. Anne’s
University Hospital, 656
91 Brno, Czech Republic
| | - Lukáš Moráň
- Department
of Histology and Embryology, Faculty of Medicine, Masaryk University, 62500 Brno, Czech Republic,Research
Centre for Applied Molecular Oncology (RECAMO), Masaryk Memorial Cancer Institute, 62500 Brno, Czech Republic
| | - Lukáš Pečinka
- Department
of Chemistry, Faculty of Science, Masaryk
University, Kamenice 5/A14, 625 00 Brno, Czech Republic,International
Clinical Research Center, St. Anne’s
University Hospital, 656
91 Brno, Czech Republic
| | - Anna Bagó-Mas
- Research
Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department
of Medical Sciences, University of Girona, Girona, Catalonia 17003, Spain
| | - Enrique Verdú
- Research
Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department
of Medical Sciences, University of Girona, Girona, Catalonia 17003, Spain
| | - Victoria Salvadó
- Department
of Chemistry, Faculty of Science, University
of Girona, 17071 Girona, Catalonia, Spain,
| | - Pere Boadas-Vaello
- Research
Group of Clinical Anatomy, Embryology and Neuroscience (NEOMA), Department
of Medical Sciences, University of Girona, Girona, Catalonia 17003, Spain,
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93
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Brand AL, Lawler PE, Bollinger JG, Li Y, Schindler SE, Li M, Lopez S, Ovod V, Nakamura A, Shaw LM, Zetterberg H, Hansson O, Bateman RJ. The performance of plasma amyloid beta measurements in identifying amyloid plaques in Alzheimer's disease: a literature review. Alzheimers Res Ther 2022; 14:195. [PMID: 36575454 PMCID: PMC9793600 DOI: 10.1186/s13195-022-01117-1] [Citation(s) in RCA: 44] [Impact Index Per Article: 22.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Accepted: 11/06/2022] [Indexed: 12/28/2022]
Abstract
The extracellular buildup of amyloid beta (Aβ) plaques in the brain is a hallmark of Alzheimer's disease (AD). Detection of Aβ pathology is essential for AD diagnosis and for identifying and recruiting research participants for clinical trials evaluating disease-modifying therapies. Currently, AD diagnoses are usually made by clinical assessments, although detection of AD pathology with positron emission tomography (PET) scans or cerebrospinal fluid (CSF) analysis can be used by specialty clinics. These measures of Aβ aggregation, e.g. plaques, protofibrils, and oligomers, are medically invasive and often only available at specialized medical centers or not covered by medical insurance, and PET scans are costly. Therefore, a major goal in recent years has been to identify blood-based biomarkers that can accurately detect AD pathology with cost-effective, minimally invasive procedures.To assess the performance of plasma Aβ assays in predicting amyloid burden in the central nervous system (CNS), this review compares twenty-one different manuscripts that used measurements of 42 and 40 amino acid-long Aβ (Aβ42 and Aβ40) in plasma to predict CNS amyloid status. Methodologies that quantitate Aβ42 and 40 peptides in blood via immunoassay or immunoprecipitation-mass spectrometry (IP-MS) were considered, and their ability to distinguish participants with amyloidosis compared to amyloid PET and CSF Aβ measures as reference standards was evaluated. Recent studies indicate that some IP-MS assays perform well in accurately and precisely measuring Aβ and detecting brain amyloid aggregates.
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Affiliation(s)
- Abby L Brand
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Paige E Lawler
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - James G Bollinger
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Yan Li
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Suzanne E Schindler
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Melody Li
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Samir Lopez
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Vitaliy Ovod
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA
| | - Akinori Nakamura
- Department of Biomarker Research, National Center for Geriatrics and Gerontology, Obu, Japan
- Department of Cognition and Behavior Science, Nagoya University Graduate School of Medicine, Nagoya, Japan
| | - Leslie M Shaw
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, USA
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Institute of Neuroscience and Physiology, the Sahlgrenska Academy at the University of Gothenburg, Mölndal, Sweden
- Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
- Department of Neurodegenerative Disease, UCL Institute of Neurology, Queen Square, London, UK
- UK Dementia Research Institute at UCL, London, UK
- Hong Kong Center for Neurodegenerative Diseases, Clear Water Bay, Hong Kong, China
| | - Oskar Hansson
- Clinical Memory Research Unit, Department of Clinical Sciences, Lund University, Malmö, Sweden
- Memory Clinic, Skåne University Hospital, Lund, Sweden
| | - Randall J Bateman
- Department of Neurology, Washington University School of Medicine, St. Louis, MO, USA.
- The Tracy Family SILQ Center, Washington University School of Medicine, St. Louis, MO, USA.
- Knight Alzheimer's Disease Research Center, Washington University School of Medicine, St. Louis, MO, USA.
- Hope Center for Neurological Disorders, Washington University School of Medicine, St. Louis, MO, USA.
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94
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The quest for a generic bird target to detect the presence of bird in food products and considerations for paleoprotein analysis. PLoS One 2022; 17:e0279369. [PMID: 36538508 PMCID: PMC9767367 DOI: 10.1371/journal.pone.0279369] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2022] [Accepted: 12/06/2022] [Indexed: 12/24/2022] Open
Abstract
It can be important for consumers to know whether food products contain animal material and, if so, of which species. Food products with animal material as an ingredient often contain collagen type 1. LC-MS/MS (Liquid Chromatography-tandem Mass Spectrometry) was applied as technique to generically detect bird. Unlike for example fish, that have experienced longer divergence times, it is still possible to find generic LC-MS targets for avian type 1 collagen. After theoretical target selection using 83 collagen 1α2 bird sequences of 33 orders and construction of a common ancestor sequence of birds, experimental evidence was provided by analyzing extracts from 10 extant bird species. Two suitable options have been identified. The combination of VGPIGPAGNR and VGPIGAAGNR (pheasant only) covers all investigated birds and was not found in other species. The peptide EGPVGFpGADGR covers all investigated birds, but also occurs in several species of crocodiles and turtles. The presence of the generic peptide (combination) was confirmed in food products, proving the principle, and can therefore be used to detect the presence of bird. Furthermore, it is shown how the use of constructed ancestor sequences could benefit the field of paleoproteomics, in the interpretation of collagen MS/MS spectra of ancient species. Our theoretical analysis and assessment of reported Brachylophosaurus canadensis collagen 1α2 MS/MS data provided support for several previous peptide sequence assignments, but we also propose that our constructed ancestral bird sequence GPpGESGAVGPAGPIGSR may fit the MS/MS data better than the original assignment GLPGESGAVGPAGPpGSR.
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95
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Verheij C, Haagsma JA, Koch BCP, Segers AEM, Schuit SCE, Rood PPM. Screening for hazardous alcohol use in the Emergency Department: Comparison of phosphatidylethanol with the Alcohol Use Disorders Identification Test and the Timeline Follow-back. Alcohol Clin Exp Res 2022; 46:2225-2235. [PMID: 36520053 PMCID: PMC10107187 DOI: 10.1111/acer.14958] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 09/10/2022] [Accepted: 10/07/2022] [Indexed: 12/16/2022]
Abstract
BACKGROUND Up to 15% of all visits to the Emergency Department (ED) are alcohol related. Identification of problematic alcohol use is important in this setting because it allows for intervention and prevention efforts. This study investigated the correlation between the objective phosphatidylethanol (PEth) marker and the subjective Alcohol Use Disorders Identification Test (AUDIT) and Timeline Followback Questionnaire (TLFB) as screening methods for hazardous alcohol use in the general ED population. METHODS This prospective cohort study included 301 ED patients (57% male) who were seen in the ED and required to give a blood sample. The correlation between the values of PEth (PEth 16:0/18:1 and PEth 16:0/18:2) and the scores on the AUDIT and TLFB were analyzed using Spearman's rank correlation coefficient. Differences between risk categories of PEth and AUDIT were also examined. RESULTS The Spearman correlation coefficients between PEth 16:0/18:1|PEth 16:0/18:2 values and the AUDIT scores were moderate (PEth 16:0/18:1: 0.67, p < 0.001; PEth 16:0/18:2: 0.67, p < 0.001). Of the patients who scored 'low risk drinking/abstinence' according to the AUDIT questionnaire, respectively 1% and 4% had PEth 16:0/18:1|PEth 16:0/18:2 values indicating excessive alcohol use, and another 10% and 12% had PEth 16:0/18:1|PEth 16:0/18:2 values indicating moderate alcohol consumption. Of the 12 (PEth 16:0/18:1) and 25 (PEth 16:0/18:2) patients with high-risk values, respectively 25% and 40% scored in the lowest risk category on the AUDIT questionnaire. Spearman correlation coefficients between PEth 16:0/18:1|PEth 16:0/18:2 values and TLFB two-week scores were high (PEth 16:0/18:1: 0.74, p < 0.001; PEth 16:0/18:2: 0.82, p < 0.001). CONCLUSIONS AUDIT scores were moderately correlated with PEth values in the general ED population. In almost all cases where there was not a good correlation, patients had high PEth values with low AUDIT scores. We conclude that PEth identifies patients with problematic alcohol use who are missed by the AUDIT questionnaire and therefore PEth could be used as an additional screening method for hazardous alcohol use in this population.
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Affiliation(s)
- Carolien Verheij
- Department of Emergency Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Juanita A Haagsma
- Department of Emergency Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Department of Public Health, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Birgit C P Koch
- Department of Pharmacy, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Anne E M Segers
- Department of Emergency Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
| | - Stephanie C E Schuit
- Department of Internal Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands.,Board of Directors, University Medical Center Groningen, Groningen, The Netherlands
| | - Pleunie P M Rood
- Department of Emergency Medicine, Erasmus MC, University Medical Center Rotterdam, Rotterdam, The Netherlands
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96
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Murisier A, D’Atri V, Pirner S, Larraillet V, Fekete S, Lauber M, Guillarme D. Ultra-Fast Middle-Up Reversed Phase Liquid Chromatography Analysis of Complex Bispecific Antibodies Obtained in Less Than One Minute. Pharmaceutics 2022; 14:2315. [PMID: 36365134 PMCID: PMC9698801 DOI: 10.3390/pharmaceutics14112315] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/24/2022] [Accepted: 10/25/2022] [Indexed: 08/12/2023] Open
Abstract
This work illustrates the benefits and limitations of using ultra-short reversed phase liquid chromatography (RPLC) columns for the characterization of various complex bispecific antibodies after prolonged thermal stress at the middle-up level of analysis. First, we have demonstrated that alternative organic modifiers, such as isopropanol, can be used in RPLC mode without generating excessive pressure, thanks to the prototype 10 × 2.1 mm, 2.7 µm particle column. However, compared to acetonitrile, the selectivity was not improved, at least for the selected biopharmaceutical products. Importantly, very fast separations (sub-1 min) of high quality were systematically obtained for the different samples when using a spectroscopic detector, but a severe loss of performance was observed with mass spectrometry (MS) detection due to dispersion effects. Based on these results, there is a clear need to improve the interfacing between LC and MS (shorter/thinner tubing) to mitigate band broadening.
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Affiliation(s)
- Amarande Murisier
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Valentina D’Atri
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
| | | | | | - Szabolcs Fekete
- Waters Corporation, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
| | - Matthew Lauber
- Waters Corporation, 34 Maple Street, Milford, MA 01757-3696, USA
| | - Davy Guillarme
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
- Institute of Pharmaceutical Sciences of Western Switzerland, University of Geneva, CMU-Rue Michel Servet 1, 1211 Geneva, Switzerland
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97
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Chang J, Zhou J, Gao M, Zhang H, Wang T. Research Advances in the Analysis of Estrogenic Endocrine Disrupting Compounds in Milk and Dairy Products. Foods 2022; 11:foods11193057. [PMID: 36230133 PMCID: PMC9563511 DOI: 10.3390/foods11193057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2022] [Revised: 09/23/2022] [Accepted: 09/28/2022] [Indexed: 11/21/2022] Open
Abstract
Milk and dairy products are sources of exposure to estrogenic endocrine disrupting compounds (e-EDCs). Estrogenic disruptors can accumulate in organisms through the food chain and may negatively affect ecosystems and organisms even at low concentrations. Therefore, the analysis of e-EDCs in dairy products is of practical significance. Continuous efforts have been made to establish effective methods to detect e-EDCs, using convenient sample pretreatments and simple steps. This review aims to summarize the recently reported pretreatment methods for estrogenic disruptors, such as solid-phase extraction (SPE) and liquid phase microextraction (LPME), determination methods including gas chromatography-mass spectrometry (GC-MS), liquid chromatography-mass spectrometry (LC-MS), Raman spectroscopy, and biosensors, to provide a reliable theoretical basis and operational method for e-EDC analysis in the future.
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98
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Grötsch MK, Wietor DM, Hettich T, Ehlert U. Validation of a Commercial Enzyme-Linked Immunosorbent Assay for Allopregnanolone in the Saliva of Healthy Pregnant Women. Biomolecules 2022; 12:1381. [PMID: 36291590 PMCID: PMC9599069 DOI: 10.3390/biom12101381] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2022] [Revised: 09/07/2022] [Accepted: 09/22/2022] [Indexed: 11/17/2022] Open
Abstract
Enzyme-linked immunosorbent assays (ELISAs) for saliva are simple, non-invasive methods for hormone detection. Allopregnanolone (ALLO) is a neuroactive steroid hormone that plays a crucial role in the aetiology of reproductive mood disorders. To better understand the relationship between ALLO and mood, a validated method to measure peripheral hormone levels is required. Currently, there is no commercially available ELISA with which to measure ALLO in saliva. We validated two ELISAs, developed for use with blood, with the saliva samples of 25 pregnant women, examining the range and sensitivity, intra- and inter-assay precision, parallelism, linearity of dilution, and recovery. The samples were simultaneously analysed using the liquid-chromatography-mass-spectrometry (LC-MS) method. The kits differed in range (31.2-2000 pg/mL vs. 1.6-100 ng/mL) and sensitivity (<9.5 pg/mL vs. 0.9 ng/mL), with the latter showing significant matrix effects and the former fulfilling the acceptance criteria of all the parameters. The concentrations measured with LC-MS were below the lower limit of quantification (<1.0 ng/mL) and no signal was detected. One of the tested ELISAs is a valid method for detecting ALLO in the saliva of pregnant women. It has a suitable measurement range and higher sensitivity than the conventional LC-MS method.
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Affiliation(s)
- Maria Katharina Grötsch
- Department of Clinical Psychology and Psychotherapy, University of Zurich, 8050 Zurich, Switzerland
| | - Denise Margret Wietor
- Department of Clinical Psychology and Psychotherapy, University of Zurich, 8050 Zurich, Switzerland
| | - Timm Hettich
- Department of Chemistry and Bioanalytics, University of Applied Sciences and Arts Northwestern Switzerland, 4132 Muttenz, Switzerland
| | - Ulrike Ehlert
- Department of Clinical Psychology and Psychotherapy, University of Zurich, 8050 Zurich, Switzerland
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99
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Darie-Ion L, Whitham D, Jayathirtha M, Rai Y, Neagu AN, Darie CC, Petre BA. Applications of MALDI-MS/MS-Based Proteomics in Biomedical Research. Molecules 2022; 27:6196. [PMID: 36234736 PMCID: PMC9570737 DOI: 10.3390/molecules27196196] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2022] [Revised: 09/14/2022] [Accepted: 09/15/2022] [Indexed: 11/22/2022] Open
Abstract
Matrix-assisted laser desorption/ionization (MALDI) mass spectrometry (MS) is one of the most widely used techniques in proteomics to achieve structural identification and characterization of proteins and peptides, including their variety of proteoforms due to post-translational modifications (PTMs) or protein-protein interactions (PPIs). MALDI-MS and MALDI tandem mass spectrometry (MS/MS) have been developed as analytical techniques to study small and large molecules, offering picomole to femtomole sensitivity and enabling the direct analysis of biological samples, such as biofluids, solid tissues, tissue/cell homogenates, and cell culture lysates, with a minimized procedure of sample preparation. In the last decades, structural identification of peptides and proteins achieved by MALDI-MS/MS helped researchers and clinicians to decipher molecular function, biological process, cellular component, and related pathways of the gene products as well as their involvement in pathogenesis of diseases. In this review, we highlight the applications of MALDI ionization source and tandem approaches for MS for analyzing biomedical relevant peptides and proteins. Furthermore, one of the most relevant applications of MALDI-MS/MS is to provide "molecular pictures", which offer in situ information about molecular weight proteins without labeling of potential targets. Histology-directed MALDI-mass spectrometry imaging (MSI) uses MALDI-ToF/ToF or other MALDI tandem mass spectrometers for accurate sequence analysis of peptide biomarkers and biological active compounds directly in tissues, to assure complementary and essential spatial data compared with those obtained by LC-ESI-MS/MS technique.
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Affiliation(s)
- Laura Darie-Ion
- Laboratory of Biochemistry, Department of Chemistry, “Alexandru Ioan Cuza” University of Iasi, Carol I bvd, No. 11, 700506 Iasi, Romania
| | - Danielle Whitham
- Biochemistry & Proteomics Laboratories, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY 13699, USA
| | - Madhuri Jayathirtha
- Biochemistry & Proteomics Laboratories, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY 13699, USA
| | - Yashveen Rai
- Biochemistry & Proteomics Laboratories, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY 13699, USA
| | - Anca-Narcisa Neagu
- Laboratory of Animal Histology, Faculty of Biology, “Alexandru Ioan Cuza” University of Iasi, Carol I bvd, No. 22, 700505 Iasi, Romania
| | - Costel C. Darie
- Biochemistry & Proteomics Laboratories, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY 13699, USA
| | - Brînduşa Alina Petre
- Laboratory of Biochemistry, Department of Chemistry, “Alexandru Ioan Cuza” University of Iasi, Carol I bvd, No. 11, 700506 Iasi, Romania
- Biochemistry & Proteomics Laboratories, Department of Chemistry and Biomolecular Science, Clarkson University, 8 Clarkson Avenue, Potsdam, NY 13699, USA
- Center for Fundamental Research and Experimental Development in Translation Medicine–TRANSCEND, Regional Institute of Oncology, 700483 Iasi, Romania
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Greener bioanalytical sample preparation. What is next? Bioanalysis 2022; 14:1021-1023. [DOI: 10.4155/bio-2022-0118] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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