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Liu Y, Wang Y, Wan X, Huang H, Shen J, Wu B, Zhu L, Wu B, Liu W, Huang L, Qian K, Ma J. Ferric particle-assisted LDI-MS platform for metabolic fingerprinting of diabetic retinopathy. Clin Chem Lab Med 2024; 62:988-998. [PMID: 38018477 DOI: 10.1515/cclm-2023-0775] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/27/2023] [Indexed: 11/30/2023]
Abstract
OBJECTIVES To explore the metabolic fingerprints of diabetic retinopathy (DR) in individuals with type 2 diabetes using a newly-developed laser desorption/ionization mass spectrometry (LDI-MS) platform assisted by ferric particles. METHODS Metabolic fingerprinting was performed using a ferric particle-assisted LDI-MS platform. A nested population-based case-control study was performed on 216 DR cases and 216 control individuals with type 2 diabetes. RESULTS DR cases and control individuals with type 2 diabetes were comparable for a list of clinical factors. The newly-developed LDI-MS platform allowed us to draw the blueprint of plasma metabolic fingerprints from participants with and without DR. The neural network afforded diagnostic performance with an average area under curve value of 0.928 for discovery cohort and 0.905 for validation cohort (95 % confidence interval: 0.902-0.954 and 0.845-0.965, respectively). Tandem MS and Fourier transform ion cyclotron resonance MS with ultrahigh resolution identified seven specific metabolites that were significantly associated with DR in fully adjusted models. Of these metabolites, dihydrobiopterin, phosphoserine, N-arachidonoylglycine, and 3-methylhistamine levels in plasma were first reported to show the associations. CONCLUSIONS This work advances the design of metabolic analysis for DR and holds the potential to promise as an efficient tool for clinical management of DR.
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Affiliation(s)
- Yu Liu
- Department of Endocrinology and Metabolism, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Yihan Wang
- State Key Laboratory of Systems Medicine for Cancer, School of Biomedical Engineering, Shanghai Jiaotong University, Shanghai, P.R. China
| | - Xu Wan
- Department of Pharmacy, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Hongtao Huang
- School of Biomedical Engineering, Institute of Medical Robotics and Med X Research Institute, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Jie Shen
- Department of Ophthalmology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Bin Wu
- Department of Pharmacy, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Lina Zhu
- Department of Ophthalmology, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Beirui Wu
- Department of Nursing, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Wei Liu
- Department of Endocrinology and Metabolism, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Lin Huang
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Kun Qian
- School of Biomedical Engineering, Institute of Medical Robotics and Med X Research Institute, Shanghai Jiao Tong University, Shanghai, P.R. China
| | - Jing Ma
- Department of Endocrinology and Metabolism, School of Medicine, Renji Hospital, Shanghai Jiao Tong University, Shanghai, P.R. China
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Jia K, Wang Y, Jiang L, Lai M, Liu W, Wang L, Liu H, Cao X, Li Y, Nie Z. Urine Metabolic Profiling for Rapid Lung Cancer Screening: A Strategy Combining Rh-Doped SrTiO 3-Assisted Laser Desorption/Ionization Mass Spectrometry and Machine Learning. ACS Appl Mater Interfaces 2024; 16:12302-12309. [PMID: 38414269 DOI: 10.1021/acsami.3c19007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/29/2024]
Abstract
Lung cancer ranks among the cancers with the highest global incidence rates and mortality. Swift and extensive screening is crucial for the early-stage diagnosis of lung cancer. Laser desorption/ionization mass spectrometry (LDI-MS) possesses clear advantages over traditional analytical methods for large-scale analysis due to its unique features, such as simple sample processing, rapid speed, and high-throughput performance. As n-type semiconductors, titanate-based perovskite materials can generate charge carriers under ultraviolet light irradiation, providing the capability for use as an LDI-MS substrate. In this study, we employ Rh-doped SrTiO3 (STO/Rh)-assisted LDI-MS combined with machine learning to establish a method for urine-based lung cancer screening. We directly analyzed urine metabolites from lung cancer patients (LCs), pneumonia patients (PNs), and healthy controls (HCs) without employing any pretreatment. Through the integration of machine learning, LCs are successfully distinguished from HCs and PNs, achieving impressive area under the curve (AUC) values of 0.940 for LCs vs HCs and 0.864 for LCs vs PNs. Furthermore, we identified 10 metabolites with significantly altered levels in LCs, leading to the discovery of related pathways through metabolic enrichment analysis. These results suggest the potential of this method for rapidly distinguishing LCs in clinical applications and promoting precision medicine.
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Affiliation(s)
- Ke Jia
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yawei Wang
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- School of Chemistry and Chemical Engineering, Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang, Jiangxi 332005, China
| | - Lixia Jiang
- Gannan Medical University, Ganzhou 341000, China
| | - Mi Lai
- Gannan Medical University, Ganzhou 341000, China
| | - Wenlan Liu
- Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Liping Wang
- Shenzhen Second People's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen 518000, China
| | - Huihui Liu
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaohua Cao
- School of Chemistry and Chemical Engineering, Jiangxi Province Engineering Research Center of Ecological Chemical Industry, Jiujiang University, Jiujiang, Jiangxi 332005, China
| | - Yuze Li
- State Key Laboratory of High-efficiency Utilization of Coal and Green Chemical Engineering, College of Chemistry and Chemical Engineering, Ningxia University, Yinchuan 750021, China
| | - Zongxiu Nie
- Beijing National Laboratory for Molecular Sciences, Key Laboratory of Analytical Chemistry for Living Biosystems, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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3
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Chen W, Yu H, Hao Y, Liu W, Wang R, Huang Y, Wu J, Feng L, Guan Y, Huang L, Qian K. Comprehensive Metabolic Fingerprints Characterize Neuromyelitis Optica Spectrum Disorder by Nanoparticle-Enhanced Laser Desorption/Ionization Mass Spectrometry. ACS Nano 2023; 17:19779-19792. [PMID: 37818994 DOI: 10.1021/acsnano.3c03765] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/13/2023]
Abstract
Timely screening of neuromyelitis optica spectrum disorder (NMOSD) and differential diagnosis from myelin oligodendrocyte glycoprotein associated disorder (MOGAD) are the keys to improving the quality of life of patients. Metabolic disturbance occurs with the development of NMOSD. Still, advanced tools are required to probe the metabolic phenotype of NMOSD. Here, we developed a fast nanoparticle-enhanced laser desorption/ionization mass spectrometry assay for multiplexing metabolic fingerprints (MFs) from trace plasma and cerebrospinal fluid (CSF) samples in 30 s. Machine learning of the plasma MFs achieved the timely screening of NMOSD from healthy donors with an area under receiver operator characteristic curve (AUROC) of 0.998, and it comprehensively revealed the dysregulated neurotransmitter and energy metabolisms. Combining comprehensive MFs from both plasma and CSF, we constructed an integrated panel for differential diagnosis of NMOSD versus MOGAD with an AUROC of 0.923. This approach demonstrated performance superior to that of human experts in classifying two diseases, especially in antibody assay-limited regions. Together, this approach provides an advanced nanomaterial-based tool for identifying vulnerable populations below the antibody threshold of aquaporin-4 positivity.
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Affiliation(s)
- Wei Chen
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Haojun Yu
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Yong Hao
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Wanshan Liu
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Ruimin Wang
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Yida Huang
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jiao Wu
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Lei Feng
- Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 201100, China
| | - Yangtai Guan
- Department of Neurology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai 200127, China
| | - Lin Huang
- Department of Clinical Laboratory Medicine, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
- Shanghai Institute of Thoracic Oncology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, 200030, China
| | - Kun Qian
- State Key Laboratory for Oncogenes and Related Genes, School of Biomedical Engineering and Institute of Medical Robotics, Shanghai Jiao Tong University, Shanghai 200030, China
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Yamada Y, Murase M, Goto Y, Mizoshita N. Perfluoroalkyl Group-Covered Organosilica Films for the Sensitive Detection of Sulfonylurea Herbicides in Laser Desorption/Ionization Mass Spectrometry. J Agric Food Chem 2023; 71:5006-5015. [PMID: 36896812 DOI: 10.1021/acs.jafc.2c09077] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Simple and rapid screening of agrochemicals greatly contributes to food and environmental safety. Matrix-free laser desorption/ionization mass spectrometry (LDI-MS) is an effective tool for high-throughput analysis of low-molecular-weight compounds. In this study, we report a UV-laser-absorbing organosilica film for the sensitive detection of various sulfonylurea herbicides using LDI-MS. Organosilica films with fluoroalkyl groups on the organic part are fabricated, followed by additional modification of the silica moiety with a fluoroalkyl coupling agent to cover the film surface with hydrophobic fluoroalkyl groups. Nanoimprinting is conducted to impart nanostructures on the film surface to enhance the LDI performance. The fabricated nanostructured organosilica films accomplish sensitive detection of cyclosulfamuron and azimsulfuron at concentrations as low as 1 fmol μL-1. The applicability of the nanostructured organosilica films is confirmed by the recovery of cyclosulfamuron and ethametsulfuron-methyl from pea sprouts (Pisum sativum) hydroponically grown in herbicide-spiked water at concentrations of 0.5 ppm.
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Affiliation(s)
- Yuri Yamada
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Masakazu Murase
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Yasutomo Goto
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
| | - Norihiro Mizoshita
- Toyota Central R&D Labs., Inc., 41-1 Yokomichi, Nagakute, Aichi 480-1192, Japan
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5
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Yang C, Miao A, Yang C, Huang C, Chen H, Jiang Y, Deng C, Sun N. Precise Detection of Cataracts with Specific High-Risk Factors by Layered Binary Co-Ionizers Assisted Aqueous Humor Metabolic Analysis. Adv Sci (Weinh) 2022; 9:e2105905. [PMID: 35621284 PMCID: PMC9313487 DOI: 10.1002/advs.202105905] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2021] [Revised: 04/26/2022] [Indexed: 06/14/2023]
Abstract
Diabetes and high myopia as well-known high-risk factors can aggravate cataracts, yet clinical coping strategy remains a bottleneck. Metabolic analysis tends to be powerful for precisely detection and mechanism exploration since most of diseases including cataracts are accompanied by metabolic disorder. Herein, a layered binary co-ionizers assisted aqueous humor metabolic analysis tool is proposed for potentially etiological typing and detection of cataracts, including age-related cataracts (ARC), cataracts with diabetes mellitus (CDM), and cataracts with high myopia (CHM). Startlingly, taking advantage of the optimal machine learning algorithm and all metabolic fingerprints, 100% of accuracy, precision, and recall rates are achieved for arbitrary comparison between groups. Moreover, 11, 9, and 7 key metabolites with explicit identities are confirmed as markers of discriminating CDM from ARC, CHM from ARC, and CDM from CHM, and the corresponding area under the curve values of validation cohorts are 0.985, 1.000, and 1.000. Finally, the critical impact of diabetes/high myopia on cataracts is revealed by excavating the change levels and metabolic pathways of key metabolites. This work updates the insights of prevention and treatment about cataracts at metabolic level and throws out huge surprises and progresses metabolic diagnosis toward a reality.
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Affiliation(s)
- Chenjie Yang
- Department of ChemistryInstitue of Metabolism and Integrate Biology (IMIB)Zhongshan HospitalFudan UniversityShanghai200433China
| | - Aizhu Miao
- Eye Institute and Department of Ophthalmology, Eye & ENT HospitalFudan UniversityShanghai200031China
| | - Chaochao Yang
- Department of ChemistryInstitue of Metabolism and Integrate Biology (IMIB)Zhongshan HospitalFudan UniversityShanghai200433China
| | - Chuwen Huang
- Department of Gastroenterology and HepatologyZhongshan HospitalFudan UniversityShanghai200032China
| | - Haolin Chen
- Department of ChemistryInstitue of Metabolism and Integrate Biology (IMIB)Zhongshan HospitalFudan UniversityShanghai200433China
| | - Yongxiang Jiang
- Eye Institute and Department of Ophthalmology, Eye & ENT HospitalFudan UniversityShanghai200031China
| | - Chunhui Deng
- Department of ChemistryInstitue of Metabolism and Integrate Biology (IMIB)Zhongshan HospitalFudan UniversityShanghai200433China
| | - Nianrong Sun
- Department of Gastroenterology and HepatologyZhongshan HospitalFudan UniversityShanghai200032China
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6
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Lin Z, Cai Z. Negative ion laser desorption/ionization time-of-flight mass spectrometric analysis of small molecules by using nanostructured substrate as matrices. Mass Spectrom Rev 2018; 37:681-696. [PMID: 29509966 DOI: 10.1002/mas.21558] [Citation(s) in RCA: 50] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Accepted: 02/08/2017] [Indexed: 06/08/2023]
Abstract
Matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) is an excellent analytical technique for rapid and sensitive analysis of macromolecules such as polymers and proteins. However, the main drawback of MALDI-TOF MS is its difficulty to detect small molecules with mass below 700 Da because of the intensive interference from MALDI matrix in the low mass region. In recent years there has been considerable interest in developing matrix-free laser desorption/ionization by using nanostructured substrates to substitute the conventional organic matrices, which is often referred as surface-assisted laser desorption/ionization time-of-flight mass spectrometry (SALDI-TOF MS). Despite these attractive features, most of the current SALDI-TOF MS for the analysis of small molecules employ positive ion mode, which is subjected to produce multiple alkali metal adducts, and thus increases the complexity of the analysis. Different from the complicated adducts produced in positive ion mode, mass spectra obtained in negative ion mode are featured by deprotonated ion peaks without matrix interference, which simplifies the interpretation of mass spectra and detection of unknown. In this review, we critically survey recent advances in nanostructured substrates for negative ion LDI-TOF MS analysis of small molecules in the last 5 years. Special emphasis is placed on the preparation of the nanostructured substrates and the results achieved in negative ion SALDI-MS. In addition, a variety of promising applications including environmental, biological, and clinical analysis are introduced. The ionization mechanism of negative ionization is briefly discussed.
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Affiliation(s)
- Zian Lin
- Ministry of Education Key Laboratory of Analysis and Detection for Food Safety, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, Department of Chemistry, Fuzhou University, Fuzhou, Fujian, P.R. China
- Partner State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR, P.R. China
| | - Zongwei Cai
- Partner State Key Laboratory of Environmental and Biological Analysis, Department of Chemistry, Hong Kong Baptist University, Kowloon Tong, Hong Kong, SAR, P.R. China
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7
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Elci SG, Tonga GY, Yan B, Kim ST, Kim CS, Jiang Y, Saha K, Moyano DF, Marsico ALM, Rotello VM, Vachet RW. Dual-Mode Mass Spectrometric Imaging for Determination of in Vivo Stability of Nanoparticle Monolayers. ACS Nano 2017; 11:7424-7430. [PMID: 28696668 PMCID: PMC5767328 DOI: 10.1021/acsnano.7b03711] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Effective correlation of the in vitro and in vivo stability of nanoparticle-based platforms is a key challenge in their translation into the clinic. Here, we describe a dual imaging method that site-specifically reports the stability of monolayer-functionalized nanoparticles in vivo. This approach uses laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS) imaging to monitor the distributions of the nanoparticle core material and laser desorption/ionization mass spectrometry (LDI-MS) imaging to report on the monolayers on the nanoparticles. Quantitative comparison of the images reveals nanoparticle stability at the organ and suborgan level. The stability of particles observed in the spleen was location-dependent and qualitatively similar to in vitro studies. In contrast, in vivo stability of the nanoparticles in the liver differed dramatically from in vitro studies, demonstrating the importance of in vivo assessment of nanoparticle stability.
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8
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Tseng YT, Harroun SG, Wu CW, Mao JY, Chang HT, Huang CC. Satellite-like Gold Nanocomposites for Targeted Mass Spectrometry Imaging of Tumor Tissues. Nanotheranostics 2017; 1:141-153. [PMID: 29071183 PMCID: PMC5646720 DOI: 10.7150/ntno.18897] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Accepted: 02/25/2017] [Indexed: 11/30/2022] Open
Abstract
We have developed a simple, rapid, high-throughput cancer diagnosis system using functional nanoparticles (NPs) consisting of poly(catechin) capped-gold NPs (Au@PC NPs) and smaller nucleolin-binding aptamer (AS1411) conjugated gold NPs (AS1411-Au NPs). The AS1411-Au NPs/Au@PC NP is used as a targeting agent in laser desorption/ionization mass spectrometry (LDI-MS)-based tumor tissue imaging. Self-assembled core-shell Au@PC NPs are synthesized by a simple reaction of tetrachloroaurate(III) with catechin. Au@PC NPs with a well-defined and dense poly(catechin) shell (~40-60 nm) on the surface of each Au core (~60-80 nm) are obtained through careful control of the ratio of catechin to gold ions, as well as the pH of the reaction solution. Furthermore, we have shown that AS1411-conjugated Au NPs (13-nm) self-assembled on Au@PC NP can from a satellite-like gold nanocomposite. The high density of AS1411-Au NPs on the surface of Au@PC NP enhances multivalent binding with nucleolin molecules on tumor cell membranes. We have employed LDI-MS to detect AS1411-Au NPs/Au@PC NPs labeled nucleolin-overexpressing MCF-7 breast cancer cells through the monitoring of Au cluster ions ([Aun]+; 1 ≤ n ≤ 3). The ultrahigh signal amplification from Au NPs through the formation of a huge number of [Aun]+ ions results in a sensing platform with a limit of detection of 100 MCF-7 cells mL-1. Further, we have applied the satellite-like AS1411-Au NPs/Au@PC NP nanocomposite as a labeling agent for tumor tissue imaging by LDI-MS. Our nanocomposite-assisted LDI-MS imaging platform can be extended for simultaneous analysis of different tumor markers on cell membranes when using different ligand-modified metal nanoparticles.
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Affiliation(s)
- Yu-Ting Tseng
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Scott G Harroun
- Department of Chemistry, Université de Montréal, Montréal, Québec H3C 3J7, Canada
| | - Chien-Wei Wu
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan
| | - Ju-Yi Mao
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan
| | - Huan-Tsung Chang
- Department of Chemistry, National Taiwan University, Taipei 10617, Taiwan.,Department of Chemistry, Chung Yuan Christian University, Taoyuan City 32023, Taiwan
| | - Chih-Ching Huang
- Department of Bioscience and Biotechnology, National Taiwan Ocean University, Keelung 20224, Taiwan.,Center of Excellence for the Oceans, National Taiwan Ocean University, Keelung 20224, Taiwan.,School of Pharmacy, College of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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9
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Wu J, Wei X, Gan J, Huang L, Shen T, Lou J, Liu B, Zhang JX, Qian K. Multifunctional Magnetic Particles for Combined Circulating Tumor Cells Isolation and Cellular Metabolism Detection. Adv Funct Mater 2016; 26:4016-4025. [PMID: 27524958 PMCID: PMC4978350 DOI: 10.1002/adfm.201504184] [Citation(s) in RCA: 77] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
We for the first time demonstrate multi-functional magnetic particles based rare cell isolation combined with the downstream laser desorption/ionization mass spectrometry (LDI-MS) to measure the metabolism of enriched circulating tumor cells (CTCs). The characterization of CTCs metabolism plays a significant role in understanding the tumor microenvironment, through exploring the diverse cellular process. However, characterizing cell metabolism is still challenging due to the low detection sensitivity, high sample complexity, and tedious preparation procedures, particularly for rare cells analysis in clinical study. Here we conjugate ferric oxide magnetic particles with anti-EpCAM on the surface for specific, efficient enrichment of CTCs from PBS and whole blood with cells concentration of 6-100 cells per mL. Moreover, these hydrophilic particles as matrix enable sensitive and selective LDI-MS detection of small metabolites (MW<500 Da) in complex bio-mixtures and can be further coupled with isotopic quantification to monitor selected molecules metabolism of ~50 CTCs. Our unique approach couples the immunomagnetic separation of CTCs and LDI-MS based metabolic analysis, which represents a key step forward for downstream metabolites analysis of rare cells to investigate the biological features of CTCs and their cellular responses in both pathological and physiological phenomena.
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Affiliation(s)
- Jiao Wu
- Center for Bio-Nano-Chips and Diagnostics in Translational Medicine (CBD), School of Biomedical Engineering, Med-X Research Institute and Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Xiang Wei
- Center for Bio-Nano-Chips and Diagnostics in Translational Medicine (CBD), School of Biomedical Engineering, Med-X Research Institute and Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Jinrui Gan
- Department of Chemistry, Institute of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - Lin Huang
- Center for Bio-Nano-Chips and Diagnostics in Translational Medicine (CBD), School of Biomedical Engineering, Med-X Research Institute and Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Ting Shen
- NanoLite Systems, Austin, TX 78795, USA
| | - Jiatao Lou
- Center for Bio-Nano-Chips and Diagnostics in Translational Medicine (CBD), School of Biomedical Engineering, Med-X Research Institute and Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
| | - Baohong Liu
- Department of Chemistry, Institute of Biomedical Sciences and State Key Lab of Molecular Engineering of Polymers, Fudan University, Shanghai 200433, China
| | - John X.J. Zhang
- Thayer School of Engineering, Dartmouth College, NH 03755, USA
| | - Kun Qian
- Center for Bio-Nano-Chips and Diagnostics in Translational Medicine (CBD), School of Biomedical Engineering, Med-X Research Institute and Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai 200030, China
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10
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García I, Henriksen-Lacey M, Sánchez-Iglesias A, Grzelczak M, Penadés S, Liz-Marzán LM. Residual CTAB Ligands as Mass Spectrometry Labels to Monitor Cellular Uptake of Au Nanorods. J Phys Chem Lett 2015; 6:2003-2008. [PMID: 26266492 DOI: 10.1021/acs.jpclett.5b00816] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Gold nanorods have numerous applications in biomedical research, including diagnostics, bioimaging, and photothermal therapy. Even though surfactant removal and surface conjugation with antifouling molecules such as polyethylene glycol (PEG) are required to minimize nonspecific protein binding and cell uptake, the reliable characterization of these processes remains challenging. We propose here the use of laser desorption/ionization mass spectrometry (LDI-MS) to study the ligand exchange efficiency of cetyltrimethylammonium bromide (CTAB)-coated nanorods with different PEG grafting densities and to characterize nanorod internalization in cells. Application of LDI-MS analysis shows that residual CTAB consistently remains adsorbed on PEG-capped Au nanorods. Interestingly, such residual CTAB can be exploited as a mass barcode to discern the presence of nanorods in complex fluids and in vitro cellular systems, even at very low concentrations.
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Affiliation(s)
- Isabel García
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | | | | | - Marek Grzelczak
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- §Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
| | - Soledad Penadés
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
| | - Luis M Liz-Marzán
- †CIC biomaGUNE, Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- ‡Biomedical Research Networking Center in Bioengineering, Biomaterials, and Nanomedicine (CIBER-BBN), Paseo de Miramón 182, 20009 Donostia-San Sebastián, Spain
- §Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
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Ellis H, Leandri V, Hagfeldt A, Boschloo G, Bergquist J, Shevchenko D. Laser desorption/ionization mass spectrometry of dye-sensitized solar cells: identification of the dye-electrolyte interaction. J Mass Spectrom 2015; 50:734-739. [PMID: 26259656 DOI: 10.1002/jms.3582] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Revised: 02/17/2015] [Accepted: 02/21/2015] [Indexed: 06/04/2023]
Abstract
Dye-sensitized solar cells (DSCs) have great potential to provide sustainable electricity from sunlight. The photoanode in DSCs consists of a dye-sensitized metal oxide film deposited on a conductive substrate. This configuration makes the photoanode a perfect sample for laser desorption/ionization mass spectrometry (LDI-MS). We applied LDI-MS for the study of molecular interactions between a dye and electrolyte on the surface of a TiO2 photoanode. We found that a dye containing polyoxyethylene groups forms complexes with alkali metal cations from the electrolyte, while a dye substituted with alkoxy groups does not. Guanidinium ion forms adducts with neither of the two dyes.
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Affiliation(s)
- Hanna Ellis
- Physical Chemistry, Centre of Molecular Devices, Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Valentina Leandri
- Physical Chemistry, Centre of Molecular Devices, Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Anders Hagfeldt
- Physical Chemistry, Centre of Molecular Devices, Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
- École Polytechnique Fédérale de Lausanne, Laboratory of Photomolecular Science, Institute of Chemical Sciences and Engineering, EPFL-FSB-ISIC-LSPM, Station 6, Lausanne, CH-1015, Switzerland
- Center of Excellence for Advanced Materials Research, King Abdulaziz University, Jeddah, 21589, Kingdom of Saudi Arabia
| | - Gerrit Boschloo
- Physical Chemistry, Centre of Molecular Devices, Department of Chemistry - Ångström Laboratory, Uppsala University, Uppsala, SE-75120, Sweden
| | - Jonas Bergquist
- Analytical Chemistry, Department of Chemistry - Biomedical Centre, Uppsala University, P.O. Box 599, Uppsala, SE-75124, Sweden
| | - Denys Shevchenko
- Analytical Chemistry, Department of Chemistry - Biomedical Centre, Uppsala University, P.O. Box 599, Uppsala, SE-75124, Sweden
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Wang RQ, Druckenmüller K, Elbers G, Guenther K, Croué JP. Analysis of aquatic-phase natural organic matter by optimized LDI-MS method. J Mass Spectrom 2014; 49:154-160. [PMID: 24464543 DOI: 10.1002/jms.3321] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2013] [Revised: 11/26/2013] [Accepted: 11/30/2013] [Indexed: 06/03/2023]
Abstract
The composition and physiochemical properties of aquatic-phase natural organic matter (NOM) are most important problems for both environmental studies and water industry. Laser desorption/ionization (LDI) mass spectrometry facilitated successful examinations of NOM, as humic and fulvic acids in NOM are readily ionized by the nitrogen laser. In this study, hydrophobic NOMs (HPO NOMs) from river, reservoir and waste water were characterized by this technique. The effect of analytical variables like concentration, solvent composition and laser energy was investigated. The exact masses of small molecular NOM moieties in the range of 200-1200 m/z were determined in reflectron mode. In addition, spectra of post-source-decay experiments in this range showed that some compounds from different natural NOMs had the same fragmental ions. In the large mass range of 1200-15,000 Da, macromolecules and their aggregates were found in HPO NOMs from natural waters. Highly humic HPO exhibited mass peaks larger than 8000 Da. On the other hand, the waste water and reservoir water mainly had relatively smaller molecules of about 2000 Da. The LDI-MS measurements indicated that highly humic river waters were able to form large aggregates and membrane foulants, while the HPO NOMs from waste water and reservoir water were unlikely to form large aggregates.
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Affiliation(s)
- Ren-Qi Wang
- College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, 730000, China; Water Desalination and Reuse Center (WDRC), 4700 King Abdullah University of Science and Technology, Kingdom of Saudi Arabia
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