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Bao Y, Deng Q, Li Y, Zhou S. Engineering docetaxel-loaded micelles for non-small cell lung cancer: a comparative study of microfluidic and bulk nanoparticle preparation. RSC Adv 2018; 8:31950-31966. [PMID: 35547502 PMCID: PMC9086256 DOI: 10.1039/c8ra04512g] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Accepted: 08/28/2018] [Indexed: 11/21/2022] Open
Abstract
Bulk preparation of micelles has the drawbacks of facile formation of large aggregates and heterogeneous particle size distribution. Microfluidic technology has shown clear potential to address these challenges for robust nanomedicine applications. In this study, docetaxel-loaded PLGA-PEG-Mal-based micelles were prepared by microfluidics and dialysis methods and their physicochemical properties were analyzed. The biological behaviors of these micelles were also investigated in the non-small cell lung cancer (NSCLC) cell line A549 in vitro as well as in vivo. Encouragingly, the mean particle size of the micelles prepared by microfluidics (DMM) was smaller, with an average size of 72 ± 1 nm and a narrow size distribution with a polydispersity index (PDI) of 0.072; meanwhile, micelles prepared by the dialysis method (DMD) had larger particle sizes (range, 102 to 144 nm) and PDIs (up to 0.390). More importantly, significantly high drug loading was achieved using the microfluidic process. The IC50 value of DMM was lower than that of DMD. Whole-body fluorescence imaging of live mice showed that DMM achieved higher accumulation in tumors compared with DMD. DMM showed superior antitumor efficacy, with a tumor inhibition rate of 91.5%. Moreover, pathological histology analysis revealed that no evident biological toxicity was caused by the micelles. In addition, Arg-Gly-Asp (RGD) was employed as a targeting agent on the basis of DMM to prepare targeting micelles, and the targeting micelles exhibited stronger cytotoxicity and obvious antitumor efficacy. In conclusion, DMM may have obvious clinical advantages for the treatment of NSCLC due to its optimized physiochemical properties. Therefore, microfluidic technology-based micelles are a promising platform as an effective drug delivery system for incorporating anticancer agents.
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Affiliation(s)
- Yuchen Bao
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine Shanghai 200433 China +86-021-65115006
| | - Qinfang Deng
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine Shanghai 200433 China +86-021-65115006
| | - Yongyong Li
- Shanghai Tenth People's Hospital, The Institute for Biomedical Engineering & Nanoscience, Tongji University School of Medicine Shanghai 200092 China +86-021-65988029
| | - Songwen Zhou
- Department of Medical Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine Shanghai 200433 China +86-021-65115006
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Alfonso-Garrido J, Garcia-Calvo E, Luque-Garcia JL. Sample preparation strategies for improving the identification of membrane proteins by mass spectrometry. Anal Bioanal Chem 2015; 407:4893-905. [PMID: 25967148 DOI: 10.1007/s00216-015-8732-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2015] [Revised: 04/15/2015] [Accepted: 04/22/2015] [Indexed: 12/31/2022]
Abstract
Despite enormous advances in the mass spectrometry and proteomics fields during the last two decades, the analysis of membrane proteins still remains a challenge for the proteomic community. Membrane proteins play a wide number of key roles in several cellular events, making them relevant target molecules to study in a significant variety of investigations (e.g., cellular signaling, immune surveillance, drug targets, vaccine candidates, etc.). Here, we critically review the several attempts that have been carried out on the different steps of the sample preparation procedure to improve and modify existing conventional proteomic strategies in order to make them suitable for the study of membrane proteins. We also revise novel techniques that have been designed to tackle the difficult but relevant task of identifying and characterizing membrane proteins.
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Affiliation(s)
- Javier Alfonso-Garrido
- Department of Analytical Chemistry, Faculty of Chemistry, Complutense University of Madrid, Av. Complutense s/n, 28004, Madrid, Spain
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Garbis SD, Townsend PA. Proteomics of human prostate cancer biospecimens: the global, systems-wide perspective for Protein markers with potential clinical utility. Expert Rev Proteomics 2014; 10:337-54. [DOI: 10.1586/14789450.2013.827408] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Srivastava S, Ali MA, Solanki PR, Chavhan PM, Pandey MK, Mulchandani A, Srivastava A, Malhotra BD. Mediator-free microfluidics biosensor based on titania–zirconia nanocomposite for urea detection. RSC Adv 2013. [DOI: 10.1039/c2ra21461j] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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Astorga-Wells J, Landreh M, Johansson J, Bergman T, Jörnvall H. A membrane cell for on-line hydrogen/deuterium exchange to study protein folding and protein-protein interactions by mass spectrometry. Mol Cell Proteomics 2011; 10:M110.006510. [PMID: 21610101 DOI: 10.1074/mcp.m110.006510] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
A membrane cell for hydrogen and deuterium exchange on-line with mass spectrometry has been developed to monitor protein-protein interactions and protein conformations. It consists of two channels separated by a semipermeable membrane, where one channel carries the protein sample and the other deuterium oxide. The membrane allows transfer of deuterium oxide into the sample flow. The labeling time is controlled via the flow rate in the sample channel. This cell was validated against three models commonly used in hydrogen-deuterium exchange mass spectrometry: monitoring of folded and unfolded states in a protein, mapping the protein secondary structure at the peptide level, and detection of protein and antibody interactions. The system avoids the conventionally used sample dilution and handling, allowing for potential automation.
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Affiliation(s)
- Juan Astorga-Wells
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-17177 Stockholm, Sweden
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Shariatgorji M, Astorga-wells J, Ilag LL. Trends in the bioanalytical applications of microfluidic electrocapture. Anal Bioanal Chem 2011; 399:191-5. [DOI: 10.1007/s00216-010-4092-y] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2010] [Revised: 08/02/2010] [Accepted: 08/03/2010] [Indexed: 11/26/2022]
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Chatterjee D, Ytterberg AJ, Son SU, Loo JA, Garrell RL. Integration of Protein Processing Steps on a Droplet Microfluidics Platform for MALDI-MS Analysis. Anal Chem 2010; 82:2095-101. [DOI: 10.1021/ac9029373] [Citation(s) in RCA: 61] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Debalina Chatterjee
- Department of Chemistry and Biochemistry, Department of Biological Chemistry, and California NanoSystems Institute, University of California—Los Angeles, Los Angeles, California 90095-1569
| | - A. Jimmy Ytterberg
- Department of Chemistry and Biochemistry, Department of Biological Chemistry, and California NanoSystems Institute, University of California—Los Angeles, Los Angeles, California 90095-1569
| | - Sang Uk Son
- Department of Chemistry and Biochemistry, Department of Biological Chemistry, and California NanoSystems Institute, University of California—Los Angeles, Los Angeles, California 90095-1569
| | - Joseph A. Loo
- Department of Chemistry and Biochemistry, Department of Biological Chemistry, and California NanoSystems Institute, University of California—Los Angeles, Los Angeles, California 90095-1569
| | - Robin L. Garrell
- Department of Chemistry and Biochemistry, Department of Biological Chemistry, and California NanoSystems Institute, University of California—Los Angeles, Los Angeles, California 90095-1569
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Jörnvall H, Lindahl E, Astorga-Wells J, Lind J, Holmlund A, Melles E, Alvelius G, Nerelius C, Mäler L, Johansson J. Oligomerization and insulin interactions of proinsulin C-peptide: Threefold relationships to properties of insulin. Biochem Biophys Res Commun 2010; 391:1561-6. [DOI: 10.1016/j.bbrc.2009.12.125] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2009] [Accepted: 12/21/2009] [Indexed: 12/12/2022]
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Astorga-Wells J, Tryggvason S, Vollmer S, Alvelius G, Palmberg C, Jörnvall H. Membrane protein identifications by mass spectrometry using electrocapture-based separation as part of a two-dimensional fractionation system. Anal Biochem 2008; 381:33-42. [DOI: 10.1016/j.ab.2008.06.031] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2008] [Revised: 06/16/2008] [Accepted: 06/17/2008] [Indexed: 11/29/2022]
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Abstract
The article brings a comprehensive survey of recent developments and applications of high-performance capillary electromigration methods, zone electrophoresis, ITP, IEF, affinity electrophoresis, EKC, and electrochromatography, to analysis, preparation, and physicochemical characterization of peptides. New approaches to the theoretical description and experimental verification of electromigration behavior of peptides and to methodology of their separations, such as sample preparation, adsorption suppression, and detection, are presented. Novel developments in individual CE and CEC modes are shown and several types of their applications to peptide analysis are presented: conventional qualitative and quantitative analysis, purity control, determination in biomatrices, monitoring of chemical and enzymatical reactions and physical changes, amino acid and sequence analysis, and peptide mapping of proteins. Some examples of micropreparative peptide separations are given and capabilities of CE and CEC techniques to provide important physicochemical characteristics of peptides are demonstrated.
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Affiliation(s)
- Václav Kasicka
- Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, Prague, Czech Republic.
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Weiss VU, Kolivoška V, Kremser L, Gaš B, Blaas D, Kenndler E. Virus analysis by electrophoresis on a microfluidic chip. J Chromatogr B Analyt Technol Biomed Life Sci 2007; 860:173-9. [DOI: 10.1016/j.jchromb.2007.10.026] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2007] [Revised: 10/16/2007] [Accepted: 10/17/2007] [Indexed: 12/24/2022]
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Abstract
Poor sensitivity is considered to be one of the major limitations of electrophoretic separation methods, particularly when compared to traditional liquid chromatographic techniques. To address this issue, various in-line preconcentration techniques have been developed over the past 15 years, ranging in power and complexity, and there are now a number of well understood approaches routinely capable of providing a 10,000- to 100,000-fold increase in sensitivity, as well as several that can be pushed above a million. Furthermore, these have been achieved with particularly troublesome and often difficult samples, such as those having high salinity from a biological or environmental origin. This review will discuss the most common methods for improving the sensitivity of CE, CEC and microchip version of these, with particular attention to those approaches developed over the last five years.
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Affiliation(s)
- Michael C Breadmore
- Australian Centre for Research on Separation Science, School of Chemistry, University of Tasmania, Hobart, Tasmania, Australia.
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Astorga-Wells J, Vollmer S, Bergman T, Jörnvall H. Formation of Stable Stacking Zones in a Flow Stream for Sample Immobilization in Microfluidic Systems. Anal Chem 2007; 79:1057-63. [PMID: 17263335 DOI: 10.1021/ac061699f] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Electrocapture is a multifunctional microfluidic tool that can be used for concentration, sample cleanup, multistep reactions, and separation of biomolecules. Herein, we investigate the mechanisms underlying the electrocapture principle. A microfluidic electrocapture device was found to be capable of generating regions of different electric field, which are maintained in the flow by electric and hydrodynamic forces, with the zones of lower electric field strength upstream of those with higher strength. In addition to detection of the local electric fields by direct measurements, the existence of the zones was observed by the capture of a solution containing Coomassie and myoglobin. The two molecules were captured at different spots in a steady-state manner and were released (separated) at different electric fields. Considering these observations and the experimental values for the electric field strengths, flow velocities, and electrophoretic mobilities of DNA, proteins, and peptides, it is concluded that the macromolecules are captured between the field zones by a stacking mechanism.
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Affiliation(s)
- Juan Astorga-Wells
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, SE-171 77 Stockholm, Sweden
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Abstract
A separation method based on electroimmobilization and sequential release of captured molecules is reported. A microfluidic electrocapture device is utilized to immobilize peptides in a microflow stream. After capture, the electric field is decreased in a stepwise manner, causing sequential release of the captured peptides according to their electrophoretic mobility. Tryptic peptides were separated and analyzed by matrix-assisted laser desorption/ionization mass spectrometry. The separation power was high enough to increase the ionization yield of several peptides not seen in the unprocessed sample. In addition to separation, simultaneous sample cleanup was demonstrated for peptides obtained by shotgun tryptic digestion of membrane protein extracts.
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Affiliation(s)
- Juan Astorga-Wells
- Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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