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Yu T, Chen JM, Liu W, Zhao JQ, Li P, Liu FJ, Jiang Y, Li HJ. In-depth characterization of cycloartane triterpenoids and discovery of species-specific markers from three Cimicifuga species guided by a strategy that integrates in-source fragment elimination, diagnostic ion recognition, and feature-based molecular networking. J Chromatogr A 2024; 1728:465015. [PMID: 38821032 DOI: 10.1016/j.chroma.2024.465015] [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: 03/19/2024] [Revised: 05/13/2024] [Accepted: 05/21/2024] [Indexed: 06/02/2024]
Abstract
Characterization studies of the plant metabolome are crucial for revealing plant physiology, developing functional foods, and controlling quality. Mass spectrometry-based metabolite profiling allows unprecedented qualitative coverage of complex biological extract composition. However, the electrospray ionization used in metabolite profiling generates multiple artifactual signals for a single analyte, which makes it challenging to filter out redundant signals and organize the signals corresponding to abundant constituents. This study proposed a strategy integrating in-source fragments elimination, diagnostic ions recognition, and feature-based molecular networking (ISFE-DIR-FBMN) to simultaneously characterize cycloartane triterpenoids (CTs) from three medicinal Cimicifuga species. The results showed that 63.1 % of the measured ions were redundant. A total of 184 CTs were annotated, with 27.1 % being reported for the first time. It presents a promising approach to assess the composition of natural extracts, thus facilitating new ingredient registrations or natural-extracts-based drug discovery campaigns. Besides, chemometrics analysis of the three Cimicifuga species identified 32 species-specific markers, highlighting significant differences among them. The valuable information can enhance the sustainable utilization and further development of Cimicifuga resources. The codes involved in ISFE-DIR-FBMN are freely available on GitHub (https://github.com/LHJ-Group/ISFE-DIR-FBMN.git).
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Affiliation(s)
- Ting Yu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jia-Min Chen
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Wei Liu
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Jin-Quan Zhao
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China
| | - Feng-Jie Liu
- Key Laboratory of Pharmaceutical Quality Control of Hebei Province, College of Pharmaceutical Science, Hebei University, Baoding 071002, China.
| | - Yan Jiang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
| | - Hui-Jun Li
- State Key Laboratory of Natural Medicines, School of Traditional Chinese Pharmacy, China Pharmaceutical University, Nanjing 211198, China.
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2
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Xu C, Shao J. High-throughput omics technologies in inflammatory bowel disease. Clin Chim Acta 2024; 555:117828. [PMID: 38355001 DOI: 10.1016/j.cca.2024.117828] [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: 07/23/2023] [Revised: 02/06/2024] [Accepted: 02/10/2024] [Indexed: 02/16/2024]
Abstract
Inflammatory bowel disease (IBD) is a chronic, relapsing intestinal disease. Elucidation of the pathogenic mechanisms of IBD requires high-throughput technologies (HTTs) to effectively obtain and analyze large amounts of data. Recently, HTTs have been widely used in IBD, including genomics, transcriptomics, proteomics, microbiomics, metabolomics and single-cell sequencing. When combined with endoscopy, the application of these technologies can provide an in-depth understanding on the alterations of intestinal microbe diversity and abundance, the abnormalities of signaling pathway-mediated immune responses and functionality, and the evaluation of therapeutic effects, improving the accuracy of early diagnosis and treatment of IBD. This review comprehensively summarizes the development and advancement of HTTs, and also highlights the challenges and future directions of these technologies in IBD research. Although HTTs have made striking breakthrough in IBD, more standardized methods and large-scale dataset processing are still needed to achieve the goal of personalized medicine.
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Affiliation(s)
- Chen Xu
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, Anhui, PR China
| | - Jing Shao
- Laboratory of Anti-infection and Immunity, College of Integrated Chinese and Western Medicine (College of Life Science), Anhui University of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, Anhui, PR China; Institute of Integrated Traditional Chinese and Western Medicine, Anhui Academy of Chinese Medicine, Zhijing Building, 350 Longzihu Road, Xinzhan District, Hefei 230012, Anhui, PR China.
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3
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Nakamura T, Hongo Y, Harada KI. Mobilize a Proton to Transform the Collision-Induced Dissociation Spectral Pattern of a Cyclic Peptide. Mass Spectrom (Tokyo) 2024; 13:A0144. [PMID: 38435076 PMCID: PMC10904930 DOI: 10.5702/massspectrometry.a0144] [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: 11/30/2023] [Accepted: 02/05/2024] [Indexed: 03/05/2024] Open
Abstract
The collision-induced dissociation (CID) behaviors of protonated molecules of anabaenopeptins, a group of cyanobacterial cyclic peptides, were investigated in detail using liquid chromatography-tandem mass spectrometry. Although anabaenopeptin A and B share a macrocyclic peptide structure, they give strikingly different fragmentation patterns; the former gives a variety of product ions including cleavages in the cyclic peptide structure, which is useful for structural analysis; whereas the latter gives far fewer product ions and no fragmentation in the cyclic moiety. Energy-resolved CID experiments clarified the mechanism behind the striking difference attributable to the difference in exocyclic amino acid residues, Tyr or Arg. The guanidino group in Arg-containing analogue, anabaenopeptin B, should be by far the most preferred protonation site; the proton would be sequestered at the guanidino group in the protonated molecule, with the lack of proton mobility prohibiting opening of the charge-directed fragmentation channels in the cyclic moiety. Enzymatic hydrolysis of the guanidino group to give citrullinated-anabaenopeptin B restored proton mobility. The fragmentation pattern of the citrullinated peptide became almost identical to that of anabaenopeptin A. The observed fragmentation behaviors of these cyclic peptides were consistent with those of linear peptides, which have been well understood based on the mobile proton model.
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Affiliation(s)
- Takemichi Nakamura
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2–1 Hirosawa, Wako, Saitama 351–0198, Japan
| | - Yayoi Hongo
- Molecular Structure Characterization Unit, RIKEN Center for Sustainable Resource Science, 2–1 Hirosawa, Wako, Saitama 351–0198, Japan
| | - Ken-ichi Harada
- Faculty of Pharmacy, Meijo University, 150 Yagotoyama, Tempaku, Nagoya 468–8503, Japan
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4
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Otsuki K, Kobayashi T, Nakamura K, Kikuchi T, Huang L, Chen CH, Koike K, Li W. LC-MS identification, isolation, and structural elucidation of anti-HIV macrocyclic daphnane orthoesters from Edgeworthia chrysantha. Fitoterapia 2024; 172:105731. [PMID: 37935270 PMCID: PMC10842090 DOI: 10.1016/j.fitote.2023.105731] [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: 08/12/2023] [Revised: 10/31/2023] [Accepted: 11/02/2023] [Indexed: 11/09/2023]
Abstract
The occurrence of macrocyclic daphnane orthoesters (MDOs) with a 1-alkyl group originating from a C14 aliphatic chain is extremely limited in the plant kingdom and has only been isolated from Edgeworthia chrysantha. In the present study, LC-ESI-MS/MS analysis was performed on different parts of E. chrysantha, including flower buds, flowers, leaves, and stems, and resulted in the identification of seven MDOs in all the four plant parts, including two previously unreported compounds 1 and 7. Further LC-MS guided isolation was carried out to afford compounds 1 and 7, and their structures were determined by various spectroscopic analyses. These compounds were also evaluated for anti-HIV activity, thus expanding insights into the structure-activity relationships for MDOs.
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Affiliation(s)
- Kouharu Otsuki
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan.
| | - Tsubasa Kobayashi
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Kazuki Nakamura
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Takashi Kikuchi
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Li Huang
- Surgical Sciences, Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States
| | - Chin-Ho Chen
- Surgical Sciences, Department of Surgery, Duke University Medical Center, Durham, NC 27710, United States
| | - Kazuo Koike
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan
| | - Wei Li
- Faculty of Pharmaceutical Sciences, Toho University, Miyama 2-2-1, Funabashi, Chiba 274-8510, Japan.
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5
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Wang Z, Tian L, Xiao Y, Zhao M, Chang Y, Zhou Y, Liu S, Zhao H, Xiu Y. Quantitative and Differential Analysis between Bupleurum chinense DC. and Bupleurum scorzonerifolium Willd. Using HPLC-MS and GC-MS Coupled with Multivariate Statistical Analysis. Molecules 2023; 28:5630. [PMID: 37570602 PMCID: PMC10419597 DOI: 10.3390/molecules28155630] [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: 06/29/2023] [Revised: 07/21/2023] [Accepted: 07/23/2023] [Indexed: 08/13/2023] Open
Abstract
Bupleurum chinense DC. and Bupleurum scorzonerifolium Willd. have different clinical efficacies, with the former typically used to treat typhoid fever and the latter mainly used to clear liver heat. The differences in their clinical efficacy are closely related to their complex chemical composition, especially the active components. In this study, the saponins and volatile oils in two varieties of Radix Bupleuri grown in different regions were extracted and analyzed using high-performance liquid chromatography (HPLC) and gas chromatography coupled with mass spectrometry (MS), and the absolute contents of five saikosaponins were accurately quantified using an established HPLC-MS method in the multiple reaction monitoring mode. Multivariate statistical analysis was performed to reveal the difference in the active components between the two varieties. The saikosaponin content was significantly affected by variety and growing region, with all five saikosaponins being significantly higher in Bupleurum chinense DC. than in Bupleurum scorzonerifolium Willd. The results of principal component analysis and hierarchical cluster analysis show a clear distinction between the two varieties in terms of both saponins and volatile oils. Twenty-one saponins, including saikosaponin b2 and b1, and fifty-two volatile oils, including 2-tetradecyloxirane and chloromethyl cyanide, were screened and identified as differential compounds contributing to the significant difference between the two varieties. These compounds may also be responsible for the difference in clinical efficacy between Bupleurum chinense DC. and Bupleurum scorzonerifolium Willd. All the results suggest that the accumulation and diversity of active components in Radix Bupleuri are significantly affected by the variety. In contrast to previous reports, this study provides the absolute contents of five saikosaponins in Radix Bupleuri of different varieties and reduces the influence of the growing region on the analytical results by collecting samples from different regions. The results of this study may provide a reference for the identification and quality evaluation of different varieties of Radix Bupleuri.
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Affiliation(s)
| | | | | | | | | | | | | | - Huanxi Zhao
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China; (Z.W.); (L.T.); (Y.X.); (M.Z.); (Y.C.); (Y.Z.); (S.L.)
| | - Yang Xiu
- Jilin Ginseng Academy, Changchun University of Chinese Medicine, Changchun 130117, China; (Z.W.); (L.T.); (Y.X.); (M.Z.); (Y.C.); (Y.Z.); (S.L.)
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6
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Freire VF, Gubiani JR, Spencer TM, Hajdu E, Ferreira AG, Ferreira DAS, de Castro Levatti EV, Burdette JE, Camargo CH, Tempone AG, Berlinck RGS. Feature-Based Molecular Networking Discovery of Bromopyrrole Alkaloids from the Marine Sponge Agelas dispar. JOURNAL OF NATURAL PRODUCTS 2022; 85:1340-1350. [PMID: 35427139 PMCID: PMC9680911 DOI: 10.1021/acs.jnatprod.2c00094] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Investigation of the marine sponge Agelas dispar MeOH fractions using feature-based molecular networking, dereplication, and isolation led to the discovery of new bromopyrrole-derived metabolites. An in-house library of bromopyrrole alkaloids previously isolated from A. dispar and Dictyonella sp. was utilized, along with the investigation of an MS/MS fragmentation of these compounds. Our strategy led to the isolation and identification of the disparamides A-C (1-3), with a novel carbon skeleton. Additionally, new dispyrins B-F (4-8) and nagelamides H2 and H3 (9 and 10) and known nagelamide H (11), citrinamine B (12), ageliferin (13), bromoageliferin (14), and dibromoageliferin (15) were also isolated and identified by analysis of spectroscopic data. Analysis of MS/MS fragmentation data and molecular networking analysis indicated the presence of hymenidin (16), oroidin (17), dispacamide (18), monobromodispacamide (19), keramadine (20), longamide B (21), methyl ester of longamide B (22), hanishin (23), methyl ester of 3-debromolongamide B (24), and 3-debromohanishin (25). Antibacterial activity of ageliferin (13), bromoageliferin (14), and dibromoageliferin (15) was evaluated against susceptible and multi-drug-resistant ESKAPE pathogenic bacteria Klabsiella pneumoniae, Escherichia coli, Staphylococcus aureus, Pseudomonas aeruginosa, Acinetobacter baumannii, and Enterococcus faecalis. Dibromoageliferin (15) displayed the most potent antimicrobial activity against all tested susceptible and MDR strains. Compounds 13-15 presented no significant hemolytic activity up to 100 μM.
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Affiliation(s)
- Vítor F Freire
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil
| | - Juliana R Gubiani
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil
| | - Tara M Spencer
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612, United States
| | - Eduardo Hajdu
- Museu Nacional, Universidade Federal do Rio de Janeiro, Quinta da Boa Vista, s/n, CEP 20940-040, Rio de Janeiro, RJ, Brazil
| | - Antonio G Ferreira
- Departamento de Química, Universidade Federal de São Carlos, Rod. Washington Luiz, km 235 - SP-310, CEP 13565-905, São Carlos, SP, Brazil
| | - Dayana A S Ferreira
- Instituto Adolfo Lutz, Secretaria de Saúde do Estado de São Paulo, Avenida Dr. Arnaldo, 351 8 Andar, sala 9, CEP 01246-000 Sao Paulo, Brazil
| | - Erica V de Castro Levatti
- Instituto Adolfo Lutz, Secretaria de Saúde do Estado de São Paulo, Avenida Dr. Arnaldo, 351 8 Andar, sala 9, CEP 01246-000 Sao Paulo, Brazil
| | - Joanna E Burdette
- Department of Pharmaceutical Sciences, Center for Biomolecular Sciences, College of Pharmacy, University of Illinois at Chicago, 833 South Wood Street, Chicago, Illinois 60612, United States
| | - Carlos Henrique Camargo
- Instituto Adolfo Lutz, Secretaria de Saúde do Estado de São Paulo, Avenida Dr. Arnaldo, 351 8 Andar, sala 9, CEP 01246-000 Sao Paulo, Brazil
| | - Andre G Tempone
- Instituto Adolfo Lutz, Secretaria de Saúde do Estado de São Paulo, Avenida Dr. Arnaldo, 351 8 Andar, sala 9, CEP 01246-000 Sao Paulo, Brazil
| | - Roberto G S Berlinck
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970, São Carlos, SP, Brazil
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Bashir K, Naz S, Rasheed HM, Farooq U, Shah AJ, McCauley EP, Crews P, Khan T. Tandem high resolution mass spectrometry based phytochemical composition of Sauromatum guttatum tubers and its enzyme inhibitory potential with molecular docking. J Chromatogr A 2022; 1672:463055. [DOI: 10.1016/j.chroma.2022.463055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Revised: 04/08/2022] [Accepted: 04/11/2022] [Indexed: 11/16/2022]
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8
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An in-house database-driven untargeted identification strategy for deep profiling of chemicalome in Chinese medicinal formula. J Chromatogr A 2022; 1666:462862. [DOI: 10.1016/j.chroma.2022.462862] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 01/17/2022] [Accepted: 01/27/2022] [Indexed: 11/18/2022]
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9
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Non-targeted analysis of vulgarisins by using collisional dissociation mass spectrometry for the discovery of analogues from Prunella vulgaris. Anal Bioanal Chem 2021; 413:6513-6521. [PMID: 34476524 DOI: 10.1007/s00216-021-03615-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2021] [Revised: 07/20/2021] [Accepted: 08/10/2021] [Indexed: 01/09/2023]
Abstract
Vulgarisins are members of diterpenoids with rare 5/6/4/5 ring skeleton from Prunella vulgaris Linn. (P. vulgaris). Their molecular scaffolds comprise different hydroxylation and degree of esterification. Vulgarisins have attracted many attentions in the fields of food and medicine for their potent bioactivities. Firstly, four reference compounds were analyzed by higher-energy collisional dissociation mass spectrometry (HCD MS/MS) and the fragmentation patterns for molecular scaffold were summarized. And then, a high-performance liquid chromatography/electrospray ionization/high-resolution mass spectrometry (HPLC-ESI-HR-MS) method was adopted to investigate the P. vulgaris extracts. Finally, the proposed analysis results were successfully applied to facilitate the discovery of the vulgarisins analogues from P. vulgaris. For the four reference compounds, the sodium adduct was the predominate ion in full scan. A specific fragmentation pathway of [M+Na]+ ions leads to produce diagnostic ions of vulgarisins at m/z 325 under HCD, which was formed through consecutive-side chains lost. Twenty-three diterpenoids, including 18 vulgarisins analogues, were identified or tentatively characterized in the botanical extracts of P. vulgaris based on their elemental constituents and characteristic fragment ion profiles. Two new vulgarisins analogues in the plant were isolated and their structures were illustrated based on extensive spectroscopic analysis using 1D and 2D nuclear magnetic resonance (NMR) spectroscopy. The HCD MS/MS method, including the profiles of the diagnostic ions induced by characteristic fragmentation, is an effective technique for the discovery of vulgarisins analogues in P. vulgaris. The expected fragmentation pattern knowledge will also facilitate the analysis of other natural products.
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10
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Plachká K, Pezzatti J, Musenga A, Nicoli R, Kuuranne T, Rudaz S, Nováková L, Guillarme D. Ion mobility-high resolution mass spectrometry in doping control analysis. Part II: Comparison of acquisition modes with and without ion mobility. Anal Chim Acta 2021; 1175:338739. [PMID: 34330438 DOI: 10.1016/j.aca.2021.338739] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Revised: 05/03/2021] [Accepted: 05/19/2021] [Indexed: 12/27/2022]
Abstract
In the second part of this study, a systematic comparison was made between two ion fragmentation acquisition modes, namely data-independent acquisition (DIA) and DIA with ion mobility spectrometry (IMS) technology. These two approaches were applied to the analysis of 192 doping agents in urine. Group I included 102 compounds such as stimulants, diuretics, narcotics, and β2-agonists, while Group II contained 90 compounds included steroids, glucocorticoids, and hormone and metabolic modulators. Important method parameters were examined and compared, including the fragmentation, sensitivity, and assignment capability with the minimum occurrence of false positive hits. The results differed between Group I and II in number of detected fragments when exploring the MS/MS spectra. In Group I only 13%, while in the Group II 64% of the substances had a higher number of fragments in DIA-IMS mode vs. DIA. In terms of sensitivity, the performance of the two modes with and without activated IMS dimension was identical for about 50% of the doping agents. The sensitivity was higher without IMS, i.e. in simple DIA mode, for 20-40% of remaining doping agents. Despite this sensitivity reduction with IMS, 82% of compounds from both Groups met the minimum required performance level (MRPL) criteria of the World Anti-Doping Agency (WADA) when the DIA-IMS mode was applied. Automated data processing is important in routine doping analysis. Therefore, processing methods were optimized and evaluated for the prevalence of false peak assignments by analysing the target substances at different concentrations in urine samples. Overall, a significantly higher number of misidentified compounds was observed in Group II, with an almost 2-fold higher number of misidentifications in DIA compared to DIA-IMS. This result highlights the benefit of the IMS dimension to reduce the rate of false positive in screening analysis. The optimized UHPLC-IM-HRMS method was finally applied to the analysis of urine samples from administration studies including nine doping agents from both Groups. However, to limit the number of interferences from the biological matrix, an emphasis is needed on the adequate settings of the data processing method.
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Affiliation(s)
- Kateřina Plachká
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Julian Pezzatti
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland
| | - Alessandro Musenga
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Raul Nicoli
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Tiia Kuuranne
- Swiss Laboratory for Doping Analyses, University Center of Legal Medicine Lausanne and Geneva, Lausanne University Hospital and University of Lausanne, Switzerland
| | - Serge Rudaz
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland
| | - Lucie Nováková
- Department of Analytical Chemistry, Faculty of Pharmacy in Hradec Králové, Charles University, Heyrovského 1203, 500 05, Hradec Králové, Czech Republic
| | - Davy Guillarme
- School of Pharmaceutical Sciences, University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland; Institute of Pharmaceutical Sciences of Western Switzerland (ISPSO), University of Geneva, CMU-Rue Michel Servet 1, 1211, Geneva 4, Switzerland.
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11
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Shu C, Li TF, Li D, Li ZQ, Xia XH. Barcode signal amplifying strategy for sensitive and accurate protein detection on LC-MS/MS. Analyst 2021; 146:1725-1733. [PMID: 33459316 DOI: 10.1039/d0an01948h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Protein drugs showing strong pharmaceutical activity, high specificity, and low toxicity and side effects have drawn extensive attention in the field of life sciences and medicine. Precise evaluation of the function of these drugs requires accurate and sensitive detection methods. Here, we report a novel chromatography-tandem mass spectrometry (LC-MS/MS) method for sensitive and selective detection of protein drugs. Magnetic nanoparticles (Apt29@MNPs) were functionalized by thrombin aptamers, and quantum dots (Apt15@ss@QDs) were dual-functionalized with quantitative thrombin aptamers and small molecules with high ionization efficiency as the mass barcode. After Apt29@MNPs specifically purify and enrich thrombin from biological samples, they can form a nano "sandwich structure" when Apt15@ss@QDs are added, resulting in the release of the mass barcode for LC-MS/MS analysis via the cutting of the disulfide bond. Since there is a higher quantitative molecular ratio of mass barcode to thrombin in the nano-"sandwich structure", quantitative detection of thrombin with high sensitivity and selectivity can be achieved via the LC-MS/MS detection of the mass barcode with high ionization efficiency rather than thrombin, which effectively avoids the disadvantages of direct protein detection by mass spectrometry. The established method for thrombin detection shows a good linear relationship in a concentration range of 0.00115-1.15 nM with a limit of detection (LOD) of 0.0007 nM. The present work provides a new approach for the effective and sensitive quantitative analysis of protein drugs and would be of great significance in promoting the development of protein drugs and clinical applications.
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Affiliation(s)
- Chang Shu
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China. and Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Teng-Fei Li
- School of Pharmacy, Department of Clinical Pharmacology, Sir Run Hospital, Nanjing Medical University, Nanjing 211166, China
| | - Duo Li
- Department of Pharmaceutical Analysis, School of Pharmacy, China Pharmaceutical University, Nanjing 210009, China
| | - Zhong-Qiu Li
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
| | - Xing-Hua Xia
- State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China.
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12
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Dadinaboyina SB, Yerra NV, Adimoolam BM, Parsa S, Bathini NB, Thota JR. Identification and characterization of degradation products of Remdesivir using liquid chromatography/mass spectrometry. NEW J CHEM 2021. [DOI: 10.1039/d1nj00160d] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
A total of nine degradation products were identified under different stress conditions by using LC-MS for RDV.
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Affiliation(s)
- S Babu Dadinaboyina
- Department of Analytical and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- Department of Fluoro-Agrochemicals
| | - Naga Veera Yerra
- Department of Analytical and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Bala Manikantha Adimoolam
- Department of Analytical and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | | | - Nagendra Babu Bathini
- Department of Fluoro-Agrochemicals
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500007
- India
- Academy of Scientific and Innovative Research (AcSIR)
| | - Jagadeshwar Reddy Thota
- Department of Analytical and Structural Chemistry
- CSIR-Indian Institute of Chemical Technology
- Hyderabad-500 007
- India
- Academy of Scientific and Innovative Research (AcSIR)
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13
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Wang X, Li D, Guo X, Zhang Q, Liao X, Cao Z, Liu L, Yang P. ComMS nDB-An Automatable Strategy to Identify Compounds from MS Data Sets (Identification of Gypenosides as an Example). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2020; 68:11368-11388. [PMID: 32945671 DOI: 10.1021/acs.jafc.0c03693] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Gynostemma pentaphyllum (Thunb.) Makino is a popular functional food and is also used as an important medicinal plant in China. Gypenoside, the main active constituent in G. pentaphyllum (Thunb.) Makino, belongs to dammarane-type triterpenoid saponins. Due to its high molecular weight and high polarity, it is difficult to obtain complete compound information for gypenoside extracts via mass spectrometry experiments. In this study, an automated targeted data postprocessing strategy called Compound MSn Database (ComMSnDB) was designed and established to elucidate compounds in gypenoside extracts based on ultrahigh-performance liquid chromatography coupled with electrospray ionization quadrupole time-of-flight tandem mass spectrometry (UHPLC-ESI-Q-TOF-MS/MS). As a result, 18 types of and 199 main saponin constituents, including 47 potential novel compounds, were tentatively identified from different habitats. At the same time, 15 gypenoside standard compounds were used to verify the feasibility of the ComMSnDB strategy. These results demonstrated that ComMSnDB offers practical value for quick, automated, and effective compound identification.
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Affiliation(s)
- Xin Wang
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
- Center for Pharmacological Evaluation and Research of SIPI, Shanghai Institute of Pharmaceutical Industry, Shanghai 200082, P. R. China
| | - Dan Li
- Department of Pharmacy, Fudan University Shanghai Cancer Center, Shanghai 200030, P. R. China
| | - Xiaomin Guo
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
| | - Qiao Zhang
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
| | - Xueling Liao
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
| | - Zhonglian Cao
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
| | - Li Liu
- Center for Pharmacological Evaluation and Research of SIPI, Shanghai Institute of Pharmaceutical Industry, Shanghai 200082, P. R. China
| | - Ping Yang
- School of Pharmacy, Fudan University, Shanghai 200135, P. R. China
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14
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Liu FJ, Jiang Y, Li P, Liu YD, Xin GZ, Yao ZP, Li HJ. Diagnostic fragmentation-assisted mass spectral networking coupled with in silico dereplication for deep annotation of steroidal alkaloids in medicinal Fritillariae Bulbus. JOURNAL OF MASS SPECTROMETRY : JMS 2020; 55:e4528. [PMID: 32559823 DOI: 10.1002/jms.4528] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/03/2020] [Accepted: 04/07/2020] [Indexed: 06/11/2023]
Abstract
Fully understanding the chemicals in an herbal medicine remains a challenging task. Molecular networking (MN) allows to organize tandem mass spectrometry (MS/MS) data in complex samples by mass spectral similarity, which yet suffers from low coverage and accuracy of compound annotation due to the size limitation of available databases and differentiation obstacle of similar chemical scaffolds. In this work, an enhanced MN-based strategy named diagnostic fragmentation-assisted molecular networking coupled with in silico dereplication (DFMN-ISD) was introduced to overcome these obstacles: the rule-based fragmentation patterns provide insights into similar chemical scaffolds, the generated in silico candidates based on metabolic reactions expand the available natural product databases, and the in silico annotation method facilitates the further dereplication of candidates by computing their fragmentation trees. As a case, this approach was applied to globally profile the steroidal alkaloids in Fritillariae bulbus, a commonly used antitussive and expectorant herbal medicine. Consequently, a total of 325 steroidal alkaloids were discovered, including 106 cis-D/E-cevanines, 142 trans-D/E-cevanines, 29 jervines, 23 veratramines, and 25 verazines. And 10 of them were confirmed by available reference standards. Approximately 70% of the putative steroidal alkaloids have never been reported in previous publications, demonstrating the benefit of DFMN-ISD approach for the comprehensive characterization of chemicals in a complex plant organism.
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Affiliation(s)
- Feng-Jie Liu
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yan Jiang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing, China
| | - Ping Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Yang-Dan Liu
- School of Pharmacy, Shenyang Pharmaceutical University, Shenyang, China
| | - Gui-Zhong Xin
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
| | - Zhong-Ping Yao
- State Key Laboratory of Chemical Biology and Drug Discovery, Food Safety and Technology Research Centre and Department of Applied Biology and Chemical Technology, The Hong Kong Polytechnic University, Kowloon, China
- State Key Laboratory of Chinese Medicine and Molecular Pharmacology (Incubation) and Shenzhen Key Laboratory of Food Biological Safety Control, Shenzhen Research Institute of Hong Kong Polytechnic University, Shenzhen, China
| | - Hui-Jun Li
- State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, 210009, China
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15
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Zhang Y, Liu L, Ren L. Liquid chromatography-tandem mass spectrometry (LC-MS/MS) determination of cantharidin in biological specimens and application to postmortem interval estimation in cantharidin poisoning. Sci Rep 2020; 10:10438. [PMID: 32591575 PMCID: PMC7320148 DOI: 10.1038/s41598-020-67278-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2020] [Accepted: 06/02/2020] [Indexed: 12/12/2022] Open
Abstract
A rapid, sensitive liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated for the determination and quantification of cantharidin in rats liver and kidney. After grinding with methanol, the supernatant was determined by LC-MS/MS using an Thermo Accucore C18 column (100 mm×2.1 mm, 2.6 μm) with a gradient elution of 0.1% formic acid and 0.1% acetonitrile, and in the subsequent analysis using selected reaction monitoring mode, three ion transitions were monitored for analyte. The limit of detection (LOD) was 0.741 ng/ml and the limit of quantitation (LOQ) was 2.471 ng/ml. Good linearity (R2 = 0.9998) was observed for the analyte over the linear range (5–400 ng/ml). The LC-MS/MS method was applied to the analysis of rats liver and kidney in different postmortem intervals (6 h, 12 h, 24 h, 48 h, 72 h and 168 h after death) after a single dose (4 mg/kg) of cantharidin administration by gavage. At 72 h after death, the cantharidin concentration in livers and kidneys were significantly higher than that in other postmortem intervals. Linear regression equations between postmortem interval and lg postmortem cantharidin concentration in rats liver and kidney were Y = 0.007455*X + 1.332(R2 = 0.863) and Y = 0.002689*X + 1.433 (R2 = 0.115) respectively. The animal experiment demonstrated LC-MS/MS method can be used to determine the postmortem cantharidin concentration in rats liver and kidney and the determination of cantharidin in the rats liver after death has potential value for postmortem interval estimation in cantharidin poisoning.
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Affiliation(s)
- Youyou Zhang
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Liang Liu
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
| | - Liang Ren
- Department of Forensic Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China.
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16
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Extensive screening of cyclopeptide toxins in mushrooms by ultra-high-performance liquid chromatography coupled with quadrupole-Orbitrap mass spectrometry. Food Chem 2020; 329:127146. [PMID: 32526599 DOI: 10.1016/j.foodchem.2020.127146] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 04/21/2020] [Accepted: 05/23/2020] [Indexed: 12/23/2022]
Abstract
A non-target screening method of cyclopeptide toxins and their analogues in mushroom was developed, using ultra-high-performance liquid chromatography coupled with quadrupole Orbitrap mass spectrometry (UHPLC-Q-Orbitrap MS) followed by mass spectrometry databases retrieval and software tools analysis for the candidate analogues. Three cyclopeptide toxins in the toxic mushroom Amanita rimosa were firstly screened without standard, and two of them were unknown analogues which were tentatively identified by the accurate masses, isotopic patterns and characteristic fragments. A validated quantitative method was performed to rapidly quantify three major cyclopeptide toxins in the Amanita rimosa sample including α-manitin, β-amanitin and phalloidin, and their contents were detected to be 4.52 mg/kg, 2.37 mg/kg and 2.53 mg/kg, respectively. The developed method has good selectivity and sensitivity for rapid and comprehensive screening the cyclopeptide toxins and their analogues in mushrooms at trace levels. Successful non-target screening of trace cyclopeptide toxin analogues will guarantee the food safety in mushrooms consumption.
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17
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Pascale R, Acquavia MA, Cataldi TRI, Onzo A, Coviello D, Bufo SA, Scrano L, Ciriello R, Guerrieri A, Bianco G. Profiling of quercetin glycosides and acyl glycosides in sun-dried peperoni di Senise peppers (Capsicum annuum L.) by a combination of LC-ESI(-)-MS/MS and polarity prediction in reversed-phase separations. Anal Bioanal Chem 2020; 412:3005-3015. [PMID: 32215688 DOI: 10.1007/s00216-020-02547-2] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2020] [Revised: 02/19/2020] [Accepted: 02/25/2020] [Indexed: 12/25/2022]
Abstract
Interest in targeted profiling of quercetin glycoconjugates occurring in edible foodstuffs continues to expand because of their recognized beneficial health effects. Quercetin derivatives encompass several thousands of chemically distinguishable compounds, among which there are several compounds with different glycosylations and acylations. Since reference standards and dedicated databases are not available, the mass spectrometric identification of quercetin glycoconjugates is challenging. A targeted liquid chromatography (LC) coupled with tandem mass spectrometry (MS/MS) was applied for screening quercetin glycoconjugates in edible peperoni di Senise peppers (Capsicum annuum L.), protected by the European Union with the mark PGI (i.e., Protected Geographical Indication), and cultivated in Basilicata (Southern Italy). Chromatographic separation was accomplished by reversed-phase liquid chromatography (RPLC) using water/acetonitrile as the mobile phase and detection was performed on a linear ion trap mass spectrometer fitted with an electrospray ionization (ESI) source operating in negative ion mode. A correlation between experimental RP chromatographic retention time and those predicted by partition coefficients (log P) along with MS/MS data and an in-house developed database (named QUEdb) provided deep coverage for sixteen quercetin glycoconjugates. Among them, eleven quercetin glycoconjugates were already described in the literature and five were reported for the first time. These last acyl glycosidic quercetin derivatives were tentatively identified as quercetin-(galloyl-rhamnoside)-hexoside, [C34H33O20]- at m/z 761.1; quercetin-(sinapoyl-hexoside)-rhamnoside, [C38H39O20]- at m/z 815.4; quercetin-(galloyl-caffeoyl-hexoside)-rhamnoside, [C43H39O23]- at m/z 923.0; quercetin-(feruloyl-hexoside)-rhamnoside, [C37H37O19]- at m/z 785.1; and quercetin-(succinyl-rhamnoside)-rhamnoside, [C31H33O18]- at m/z 693.1. Graphical abstract.
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Affiliation(s)
- Raffaella Pascale
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Maria A Acquavia
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy.,ALMAGISI s.r.l., via Al Boschetto 4B, 39100, Bolzano, Italy
| | - Tommaso R I Cataldi
- Dipartimento di Chimica, Università degli Studi di Bari Aldo Moro, via E. Orabona 4, 70126, Bari, Italy
| | - Alberto Onzo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Donatella Coviello
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Sabino A Bufo
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy.,Department of Geography, Environmental Management & Energy Studies, University of Johannesburg, Johannesburg, South Africa
| | - Laura Scrano
- Dipartimento delle Culture Europee e del Mediterraneo: Arch., Ambiente, Patrimoni Culturali, Università degli Studi della Basilicata, Via del Castello, 75100, Matera, Italy
| | - Rosanna Ciriello
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Antonio Guerrieri
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy
| | - Giuliana Bianco
- Dipartimento di Scienze, Università degli Studi della Basilicata, Via dell'Ateneo Lucano, 10, 85100, Potenza, Italy.
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18
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Qian W, Wu W, Kang Y, Wang Y, Yang P, Deng Y, Ni C, Huang J. Comprehensive identification of minor components and bioassay-guided isolation of an unusual antioxidant from Azolla imbricata using ultra-high performance liquid chromatography—quadrupole time-of-flight mass spectrometry combined with multicomponent knockout and bioactivity evaluation. J Chromatogr A 2020; 1609:460435. [DOI: 10.1016/j.chroma.2019.460435] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2019] [Revised: 08/03/2019] [Accepted: 08/06/2019] [Indexed: 12/25/2022]
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19
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da Silva LAL, Sandjo LP, Misturini A, Caramori GF, Biavatti MW. ESI-QTof-MS characterization of hirsutinolide and glaucolide sesquiterpene lactones: Fragmentation mechanisms and differentiation based on Na + /H + adducts interactions in complex mixture. JOURNAL OF MASS SPECTROMETRY : JMS 2019; 54:915-932. [PMID: 31476247 DOI: 10.1002/jms.4433] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 08/09/2019] [Accepted: 08/26/2019] [Indexed: 06/10/2023]
Abstract
Sesquiterpene lactones (SL) have been reported with various biological effects. Among the described SL skeletons, hirsutinolide and glaucolide have not been extensively studied by mass spectrometry (MS), especially how to distinguish them in organic matrices. Thus, this paper reports (1) a strategy of their differentiation based on MS behavior during the ionization and (2) a proposal of the fragmentation pattern for both SL-subtypes. ESI(+)-HRMS data of four isolated SL (hirsutinolides 1 and 3; glaucolides 2 and 4) were recorded by direct and UPLC water-sample combined injections. These analyses revealed that hirsutinolides and glaucolides formed [M+Na]+ ion during the operation of the direct MS injection, and ([M+Na]+ and [M+H-H2 O]+ ) and [M+H]+ ions were respectively observed for hirsutinolides and glaucolides during the operation of combined UPLC water and sample MS injection. Computational simulations showed that the complex hirsutinolide (1)-Na+ formed with a lower preparation energy compared with the complex glaucolide (2)-Na+ . However, despite their different behavior during the ionization process, ESI(+)-HRMS/MS analyses of 1-4 gave similar fragmentation patterns at m/z 277, 259, 241, and 231 that can be used as diagnostic ions for both skeletons. Moreover, the differentiation strategy based on the nature of the complex SL-adducts and their MS/MS fragmentation pattern were successfully applied for the chemical characterization of the extract from Vernonanthura tweedieana using UPLC-ESI-HRMS/MS. Among the characterized metabolites, SL with hirsutinolide and glaucolide skeletons showed the aforementioned diagnostic fragments and an ionization behavior that was similar to those observed during the water-sample combined injection.
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Affiliation(s)
- Layzon A L da Silva
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, Florianópolis, SC, CEP, 88040-970, Brazil
| | - Louis P Sandjo
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, Florianópolis, SC, CEP, 88040-970, Brazil
| | - Alechania Misturini
- Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, Florianópolis, SC, CEP, 88040-900, Brazil
| | - Giovanni F Caramori
- Department of Chemistry, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, Florianópolis, SC, CEP, 88040-900, Brazil
| | - Maique W Biavatti
- Department of Pharmaceutical Sciences, Universidade Federal de Santa Catarina, Campus Universitário-Trindade, Florianópolis, Florianópolis, SC, CEP, 88040-970, Brazil
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20
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A strategy for identification and structural characterization of oplopane- and bisabolane-type sesquiterpenoids from Tussilago farfara L. by multiple scan modes of mass spectrometry. J Chromatogr A 2019; 1602:188-198. [DOI: 10.1016/j.chroma.2019.05.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 05/03/2019] [Accepted: 05/09/2019] [Indexed: 12/12/2022]
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21
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Reddy SD, Siva B, Kumar K, Babu VSP, Sravanthi V, Boustie J, Nayak VL, Tiwari AK, Rao CHV, Sridhar B, Shashikala P, Babu KS. Comprehensive Analysis of Secondary Metabolites in Usnea longissima (Lichenized Ascomycetes, Parmeliaceae) Using UPLC-ESI-QTOF-MS/MS and Pro-Apoptotic Activity of Barbatic Acid. Molecules 2019; 24:molecules24122270. [PMID: 31216770 PMCID: PMC6630668 DOI: 10.3390/molecules24122270] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2019] [Revised: 06/06/2019] [Accepted: 06/08/2019] [Indexed: 01/07/2023] Open
Abstract
Considering the importance of ultra-performance liquid chromatography-electrospray ionization-quadrupole time of flight-tandem mass spectrometry (UPLC-ESI-QTOF-MS/MS) hyphenated techniques for analysis of secondary metabolites from crude extracts, the present study was aimed at identification of secondary metabolites in acetone extract of the lichen Usnea longissima. From our study, 19 compounds were tentatively identified through comparison of exact molecular masses from their MS/MS spectra, mass fragmentation studies and comparison with literature data. In addition, potent cytotoxic activity of U. longissima extract prompted us to isolate four compounds, 18R-hydroxy-dihydroalloprotolichesterinic acid (19), neuropogolic acid (20), barbatic acid (21), and usnic acid (22) from this extract which were adequately identified through mass spectrometry and NMR spectroscopy. All four compounds displayed cytotoxic activity. Barbatic acid (21) manifested doxorubicin equivalent activity against A549 lung cancer cell line with IC50 of 1.78 µM and strong G0/G1 accumulation of cells. Poly ADP-ribose polymerase (PARP) cleavage confirmed that it induced cytotoxic activity via apoptosis. Finally, our work has discerned the depside, barbatic acid (21) from crude extract as a candidate anti-cancer molecule, which induces cell death by stepping up apoptosis.
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Affiliation(s)
- S Divya Reddy
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
- Dept. of Pharmacy, University College of Technology, Osmania University, Hyderabad 500 007, Telangana, India.
| | - Bandi Siva
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
| | - Katragunta Kumar
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
| | - V S Phani Babu
- Centre for NMR & Structural Chemistry, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India.
| | - Vemireddy Sravanthi
- Organic Synthesis and Process Chemistry Division, CSIR-Indian Institute of Chemical Technology, Hyderabad 500 007, Telangana, India.
| | - Joel Boustie
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000 Rennes, France.
| | - V Lakshma Nayak
- Division of Applied Biology, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
| | - Ashok K Tiwari
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
| | - C H V Rao
- Pharmacognosy and Ethnopharmacology Division, CSIR-National Botanical Research Institute Rana Pratap Marg, P.O. Box No. 436, Lucknow 226001, Uttar Pradesh, India.
| | - B Sridhar
- Analytical Division, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
| | - P Shashikala
- Dept. of Pharmacy, University College of Technology, Osmania University, Hyderabad 500 007, Telangana, India.
| | - K Suresh Babu
- Centre for Natural Products & Traditional Knowledge, CSIR-Indian Institute of Chemical Technology, Tarnaka, Hyderabad 500 007, Telangana, India.
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22
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Zhang X, Xu X, Chen X, Chen L, Xu X, Wu Z, Fang D, Cai T. Competitive McLafferty-type rearrangements of sodium adduct of anti-2,3-dihydroxy-1-phenylpentane-1,4-dione compounds in tandem mass spectrometry. EUROPEAN JOURNAL OF MASS SPECTROMETRY (CHICHESTER, ENGLAND) 2018; 24:437-441. [PMID: 30253654 DOI: 10.1177/1469066718803082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Sodium adducts of anti-2,3-dihydroxy-1-phenylpentane-1,4-dione compounds with different substituents were studied by collision-induced dissociation. McLafferty-type rearrangements preceding fragmentation were found as their main fragmentation pathway. Coordination of sodium cation to the oxygen functions may either lead to formation of a five-membered or a six-membered ring. Two McLafferty-type rearrangement product ions exhibiting a mass difference of 2 u indicated that two competitive McLafferty-type rearrangements through a six-membered ring coordination occurred. Relative abundances of the corresponding product ions were studied by energy-resolved collision-induced dissociation experiments and density functional theory calculations. Furthermore, the influence of different substituents was probed.
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Affiliation(s)
- Xiayan Zhang
- Chengdu Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xu Xu
- Chengdu Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Xinmeng Chen
- Chengdu Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Lin Chen
- School of Chemistry and Materials Science, Guizhou Normal University, Guiyang, China
| | - Xiaoying Xu
- Chengdu Institute of Organic Chemistry, University of Chinese Academy of Sciences, Chengdu, China
| | - Zhijun Wu
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Chengdu, China
| | - Dongmei Fang
- Chengdu Institute of Biology, University of Chinese Academy of Sciences, Chengdu, China
| | - Tian Cai
- School of Chemistry and Chemical Engineering, Southwest University, Beibei, Chongqing, China
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23
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Liquid Chromatography Coupled with Linear Ion Trap Hybrid OrbitrapMass Spectrometry for Determination of Alkaloids in Sinomeniumacutum. Molecules 2018; 23:molecules23071634. [PMID: 29973556 PMCID: PMC6099952 DOI: 10.3390/molecules23071634] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2018] [Revised: 07/02/2018] [Accepted: 07/03/2018] [Indexed: 01/15/2023] Open
Abstract
The characterization of alkaloids is challenging because of the diversity of structures and the complicated fragmentation of collision induced structural dissociation in mass spectrometry. In this study, we analyzed the alkaloids in Sinomenium acutum (Thunb.) Rehderet Wil by high resolution mass spectrometry. Chromatographic separation was achieved on a Phenomenex Kinetex C18 (2.1 mm × 100 mm, 2.6 μm) column with a mobile phase consisting of acetonitrile and water (0.1% formic acid) under gradient elution. A total of 52 alkaloids were well separated and 45 of them were structurally characterized, including morphinans, aporphines, benzylisoquinolines, and protoberberines. Specially, mass spectrometric study of the morphinan alkaloids were explicitly investigated. Electrostatic potential plot from simulation was calculated for determination of protonation sites. Further fragmentation analysis suggested that the C₃H₇N, CH₄O, and H₂O elimination was displayed in MS² spectrum. These fragmentation pathways are universal for morphinan alkaloids having methoxy substituted cyclohexenone or cyclohexadienone moieties. Additionally, for nitrogen oxides, an ion-neutral complex intermediate is involved in the fragmentation process, generating additional oxygenated ions. All these results provided the universal rules of fragmentation used for detection of alkaloids, and will be expected to be highly useful for comprehensive study of multi-components in the herbal medicine analysis.
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24
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Niu X, He B, Du Y, Sui Z, Rong W, Wang X, Li Q, Bi K. The investigation of immunoprotective and sedative hypnotic effect of total polysaccharide from Suanzaoren decoction by serum metabonomics approach. J Chromatogr B Analyt Technol Biomed Life Sci 2018; 1086:29-37. [PMID: 29654984 DOI: 10.1016/j.jchromb.2018.04.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2017] [Revised: 03/19/2018] [Accepted: 04/05/2018] [Indexed: 12/17/2022]
Abstract
Suanzaoren decoction, as one of the traditional Chinese medicine prescriptions, has been most commonly used in Asian countries and reported to inhibit the process of immunodeficiency insomnia. Polysaccharide is important component which also contributes to the role of immunoprotective and sedative hypnotic effects. This study was aimed to explore the immunoprotective and sedative hypnotic mechanisms of polysaccharide from Suanzaoren decoction by serum metabonomics approach. With this purpose, complex physical and chemical immunodeficiency insomnia models were firstly established according to its multi-target property. Serum samples were analyzed using UHPLC/Q-TOF-MS spectrometry approach to determine endogenous metabolites. Then, principal component analysis was used to distinguish the groups, and partial least squares discriminate analysis was carried out to confirm the important variables. The serum metabolic profiling was identified and pathway analysis was performed after the total polysaccharide administration. The twenty-one potential biomarkers were screened, and the levels were all reversed to different degrees in the total polysaccharide treated groups. These potential biomarkers were mainly related to vitamin, sphingolipid, bile acid, phospholipid and acylcarnitine metabolisms. The result has indicated that total polysaccharide could inhibit insomnia triggered by immunodeficiency stimulation through regulating those metabolic pathways. This study provides a useful approach for exploring the mechanism and evaluating the efficacy of total polysaccharide from Suanzaoren decoction.
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Affiliation(s)
- Xiaoyi Niu
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Bosai He
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Yiyang Du
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Zhenyu Sui
- China Food and Drug Administration Institute of Executive Development, 16 Xizhannan Road, Beijing 100073, China
| | - Weiwei Rong
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Xiaotong Wang
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Qing Li
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China
| | - Kaishun Bi
- School of Pharmacy, Shenyang Pharmaceutical University, 103 Wenhua Road, Shenyang 110016, China.
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25
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Kaufmann A, Butcher P, Maden K, Walker S, Widmer M. Using In Silico Fragmentation to Improve Routine Residue Screening in Complex Matrices. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2017; 28:2705-2715. [PMID: 28900836 DOI: 10.1007/s13361-017-1800-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/28/2017] [Accepted: 08/28/2017] [Indexed: 06/07/2023]
Abstract
Targeted residue screening requires the use of reference substances in order to identify potential residues. This becomes a difficult issue when using multi-residue methods capable of analyzing several hundreds of analytes. Therefore, the capability of in silico fragmentation based on a structure database ("suspect screening") instead of physical reference substances for routine targeted residue screening was investigated. The detection of fragment ions that can be predicted or explained by in silico software was utilized to reduce the number of false positives. These "proof of principle" experiments were done with a tool that is integrated into a commercial MS vendor instrument operating software (UNIFI) as well as with a platform-independent MS tool (Mass Frontier). A total of 97 analytes belonging to different chemical families were separated by reversed phase liquid chromatography and detected in a data-independent acquisition (DIA) mode using ion mobility hyphenated with quadrupole time of flight mass spectrometry. The instrument was operated in the MSE mode with alternating low and high energy traces. The fragments observed from product ion spectra were investigated using a "chopping" bond disconnection algorithm and a rule-based algorithm. The bond disconnection algorithm clearly explained more analyte product ions and a greater percentage of the spectral abundance than the rule-based software (92 out of the 97 compounds produced ≥1 explainable fragment ions). On the other hand, tests with a complex blank matrix (bovine liver extract) indicated that the chopping algorithm reports significantly more false positive fragments than the rule based software. Graphical Abstract.
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Affiliation(s)
- Anton Kaufmann
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032, Zürich, Switzerland.
| | - Patrick Butcher
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - Kathryn Maden
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - Stephan Walker
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032, Zürich, Switzerland
| | - Mirjam Widmer
- Official Food Control Authority of the Canton of Zurich, Fehrenstrasse 15, 8032, Zürich, Switzerland
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26
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Xu X, Cai T, Xie KX, Hou X, Xu XY, Jiang Y, Wu ZJ. Fragmentation Study of Limonoids from Turraae pubescens by Electrospray Ionization Quadrupole Time-of-flight Mass Spectrometry. ANAL LETT 2017. [DOI: 10.1080/00032719.2017.1327536] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Xu Xu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Tian Cai
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
- University of Chinese Academy of Sciences, Beijing, China
| | - Ke-Xin Xie
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Xue Hou
- Center of Analysis and Testing, Sichuan Academy of Agricultural Sciences, Chengdu, China
- Laboratory of Quality and Safety Risk Assessment for Agro-products (Chengdu), Ministry of Agriculture, Chengdu, China
| | - Xiao-Ying Xu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu, China
| | - Yan Jiang
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
| | - Zhi-Jun Wu
- Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu, China
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