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Saha S, Xiong X, Chakraborty PK, Shameer K, Arvizo RR, Kudgus RA, Dwivedi SKD, Hossen MN, Gillies EM, Robertson JD, Dudley JT, Urrutia RA, Postier RG, Bhattacharya R, Mukherjee P. Gold Nanoparticle Reprograms Pancreatic Tumor Microenvironment and Inhibits Tumor Growth. ACS Nano 2016; 10:10636-10651. [PMID: 27758098 PMCID: PMC6939886 DOI: 10.1021/acsnano.6b02231] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [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: 05/20/2023]
Abstract
Altered tumor microenvironment (TME) arising from a bidirectional crosstalk between the pancreatic cancer cells (PCCs) and the pancreatic stellate cells (PSCs) is implicated in the dismal prognosis in pancreatic ductal adenocarcinoma (PDAC), yet effective strategies to disrupt the crosstalk is lacking. Here, we demonstrate that gold nanoparticles (AuNPs) inhibit proliferation and migration of both PCCs and PSCs by disrupting the bidirectional communication via alteration of the cell secretome. Analyzing the key proteins identified from a functional network of AuNP-altered secretome in PCCs and PSCs, we demonstrate that AuNPs impair secretions of major hub node proteins in both cell types and transform activated PSCs toward a lipid-rich quiescent phenotype. By reducing activation of PSCs, AuNPs inhibit matrix deposition, enhance angiogenesis, and inhibit tumor growth in an orthotopic co-implantation model in vivo. Auto- and heteroregulations of secretory growth factors/cytokines are disrupted by AuNPs resulting in reprogramming of the TME. By utilizing a kinase dead mutant of IRE1-α, we demonstrate that AuNPs alter the cellular secretome through the ER-stress-regulated IRE1-dependent decay pathway (RIDD) and identify endostatin and matrix metalloproteinase 9 as putative RIDD targets. Thus, AuNPs could potentially be utilized as a tool to effectively interrogate bidirectional communications in the tumor microenvironment, reprogram it, and inhibit tumor growth by its therapeutic function.
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Affiliation(s)
- Sounik Saha
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Xunhao Xiong
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Prabir K. Chakraborty
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Khader Shameer
- Institute of Next Generation Healthcare, Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, Mount Sinai Health System, New York, New York 10029, United States
| | - Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, College of Medicine, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Rachel A. Kudgus
- Molecular Pharmacology and Experimental Therapeutics, College of Medicine, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Shailendra Kumar Dhar Dwivedi
- Department of Obstetrics and Gynecology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Md. Nazir Hossen
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Elizabeth M. Gillies
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - J. David Robertson
- Department of Chemistry and University of Missouri Research Reactor, University of Missouri, Columbia, Missouri 65211, United States
| | - Joel T. Dudley
- Institute of Next Generation Healthcare, Department of Genetics and Genomic Sciences, Icahn School of Medicine at Mount Sinai, Mount Sinai Health System, New York, New York 10029, United States
| | - Raul A. Urrutia
- Division of Gastroenterology and Hepatology, College of Medicine, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Russell G. Postier
- Department of Surgery, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Resham Bhattacharya
- Department of Obstetrics and Gynecology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Priyabrata Mukherjee
- Department of Pathology, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
- Peggy and Charles Stephenson Cancer Center, University of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
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Xiong X, Arvizo RR, Saha S, Robertson DJ, McMeekin S, Bhattacharya R, Mukherjee P. Sensitization of ovarian cancer cells to cisplatin by gold nanoparticles. Oncotarget 2015; 5:6453-65. [PMID: 25071019 PMCID: PMC4171643 DOI: 10.18632/oncotarget.2203] [Citation(s) in RCA: 49] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Recently we reported that gold nanoparticles (AuNPs) inhibit ovarian tumor growth and metastasis in mice by reversing epithelial-mesenchymal transition (EMT). Since EMT is known to confer drug resistance to cancer cells, we wanted to investigate whether anti-EMT property of AuNP could be utilized to sensitize ovarian cancer cells to cisplatin. Herein, we report that AuNPs prevent cisplatin-induced acquired chemoresistance and stemness in ovarian cancer cells and sensitize them to cisplatin. AuNPs inhibit cisplatin induced EMT, decrease the side population cells and key stem cell markers such as ALDH1, CD44, CD133, Sox2, MDR1 and ABCG2 in ovarian cancer cells. Mechanistically, AuNPs prevent cisplatin-induced activation of Akt and NF-κB signaling axis in ovarian cancer cells that are critical for EMT, stem cell maintenance and drug resistance. In vivo, AuNPs sensitize orthotopically implanted ovarian tumor to a low dose of cisplatin and significantly inhibit tumor growth via facilitated delivery of both AuNP and cisplatin. These findings suggest that by depleting stem cell pools and inhibiting key molecular pathways gold nanoparticles sensitize ovarian cancer cells to cisplatin and may be used in combination to inhibit tumor growth and metastasis in ovarian cancer.
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Affiliation(s)
- Xunhao Xiong
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; These authors contributed equally to this work
| | - Rochelle R Arvizo
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN; These authors contributed equally to this work
| | - Sounik Saha
- Department of Pathology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - David J Robertson
- Department of Chemistry and University of Missouri Research Reactor, University of Missouri, Columbia, Missouri
| | - Scott McMeekin
- Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Resham Bhattacharya
- Department of Obstetrics and Gynecology, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma; Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
| | - Priyabrata Mukherjee
- Peggy and Charles Stephenson Cancer Center, The University of Oklahoma Health Sciences Center, Oklahoma City, Oklahoma
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Giri K, Shameer K, Zimmermann M, Saha S, Chakraborty PK, Sharma A, Arvizo RR, Madden BJ, Mccormick DJ, Kocher JPA, Bhattacharya R, Mukherjee P. Understanding protein-nanoparticle interaction: a new gateway to disease therapeutics. Bioconjug Chem 2014; 25:1078-90. [PMID: 24831101 PMCID: PMC4128259 DOI: 10.1021/bc500084f] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 05/14/2014] [Indexed: 02/08/2023]
Abstract
Molecular identification of protein molecules surrounding nanoparticles (NPs) may provide useful information that influences NP clearance, biodistribution, and toxicity. Hence, nanoproteomics provides specific information about the environment that NPs interact with and can therefore report on the changes in protein distribution that occurs during tumorigenesis. Therefore, we hypothesized that characterization and identification of protein molecules that interact with 20 nm AuNPs from cancer and noncancer cells may provide mechanistic insights into the biology of tumor growth and metastasis and identify new therapeutic targets in ovarian cancer. Hence, in the present study, we systematically examined the interaction of the protein molecules with 20 nm AuNPs from cancer and noncancerous cell lysates. Time-resolved proteomic profiles of NP-protein complexes demonstrated electrostatic interaction to be the governing factor in the initial time-points which are dominated by further stabilization interaction at longer time-points as determined by ultraviolet-visible spectroscopy (UV-vis), dynamic light scattering (DLS), ζ-potential measurements, transmission electron microscopy (TEM), and tandem mass spectrometry (MS/MS). Reduction in size, charge, and number of bound proteins were observed as the protein-NP complex stabilized over time. Interestingly, proteins related to mRNA processing were overwhelmingly represented on the NP-protein complex at all times. More importantly, comparative proteomic analyses revealed enrichment of a number of cancer-specific proteins on the AuNP surface. Network analyses of these proteins highlighted important hub nodes that could potentially be targeted for maximal therapeutic advantage in the treatment of ovarian cancer. The importance of this methodology and the biological significance of the network proteins were validated by a functional study of three hubs that exhibited variable connectivity, namely, PPA1, SMNDC1, and PI15. Western blot analysis revealed overexpression of these proteins in ovarian cancer cells when compared to normal cells. Silencing of PPA1, SMNDC1, and PI15 by the siRNA approach significantly inhibited proliferation of ovarian cancer cells and the effect correlated with the connectivity pattern obtained from our network analyses.
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Affiliation(s)
- Karuna Giri
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Khader Shameer
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Michael
T. Zimmermann
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Sounik Saha
- Stanton
L. Young Biomedical Research Center, University
of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Prabir K. Chakraborty
- Stanton
L. Young Biomedical Research Center, University
of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Anirudh Sharma
- Department
of Biomedical Engineering, The University
of Texas, Austin, Texas 78712, United
States
| | - Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Benjamin J. Madden
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Daniel J. Mccormick
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Jean-Pierre A. Kocher
- Department of Biochemistry and Molecular Biology, Division of Biomedical Statistics
and Informatics, Department of Health Sciences Research, Molecular Medicine
Program, and Proteomics
Research Center, Mayo Clinic, Rochester, Minnesota 55905, United States
| | - Resham Bhattacharya
- Stanton
L. Young Biomedical Research Center, University
of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
| | - Priyabrata Mukherjee
- Stanton
L. Young Biomedical Research Center, University
of Oklahoma Health Science Center, Oklahoma City, Oklahoma 73104, United States
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Arvizo RR, Moyano DF, Saha S, Thompson MA, Bhattacharya R, Rotello VM, Prakash YS, Mukherjee P. Probing novel roles of the mitochondrial uniporter in ovarian cancer cells using nanoparticles. J Biol Chem 2013; 288:17610-8. [PMID: 23615904 DOI: 10.1074/jbc.m112.435206] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Nanoparticles provide a potent tool for targeting and understanding disease mechanisms. In this regard, cancer cells are surprisingly resistant to the expected toxic effects of positively charged gold nanoparticles ((+)AuNPs). Our investigations led to the identification of MICU1, regulator of mitochondrial calcium uniporter, as a key molecule conferring cancer cells with resistance to (+)AuNPs. The increase in cytosolic [Ca(2+)]cyto in malignant cells induced by (+)AuNPs is counteracted by MICU1, preventing cell death. Pharmacological or siRNA-mediated inhibition of mitochondrial Ca(+2) entry leads to endoplasmic reticulum stress and sensitizes cancer cells to (+)AuNP-induced cytotoxicity. Silencing MICU1 decreases Bcl-2 expression and increases caspase-3 activity and cytosolic cytochrome c levels, thus initiating the mitochondrial pathway for apoptosis: effects further enhanced by (+)AuNPs. This study highlights the potential of nanomaterials as a tool to broaden our understanding of cellular processes, establishes MICU1 as a novel regulator of the machinery in cancer cells that prevents apoptosis, and emphasizes the need to synergize nanoparticle design with understanding of mitochondrial machinery for enhancing targeted cellular toxicity.
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Affiliation(s)
- Rochelle R Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota 55905, USA
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Arvizo RR, Bhattacharyya S, Kudgus R, Giri K, Bhattacharya R, Mukherjee P. Intrinsic therapeutic applications of noble metal nanoparticles: past, present and future. Chem Soc Rev 2012; 41:2943-70. [PMID: 22388295 PMCID: PMC3346960 DOI: 10.1039/c2cs15355f] [Citation(s) in RCA: 477] [Impact Index Per Article: 39.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Biomedical nanotechnology is an evolving field having enormous potential to positively impact the health care system. Important biomedical applications of nanotechnology that may have potential clinical applications include targeted drug delivery, detection/diagnosis and imaging. Basic understanding of how nanomaterials, the building blocks of nanotechnology, interact with the cells and their biological consequences are beginning to evolve. Noble metal nanoparticles such as gold, silver and platinum are particularly interesting due to their size and shape dependent unique optoelectronic properties. These noble metal nanoparticles, particularly of gold, have elicited a lot of interest for important biomedical applications because of their ease of synthesis, characterization and surface functionalization. Furthermore, recent investigations are demonstrating another promising application of these nanomaterials as self-therapeutics. To realize the potential promise of these unique inorganic nanomaterials for future clinical translation, it is of utmost importance to understand a few critical parameters; (i) how these nanomaterials interact with the cells at the molecular level; (ii) how their biodistribution and pharmacokinetics influenced by their surface and routes of administration; (iii) mechanism of their detoxification and clearance and (iv) their therapeutic efficacy in appropriate disease model. Thus in this critical review, we will discuss the various clinical applications of gold, silver and platinum nanoparticles with relevance to above parameters. We will also mention various routes of synthesis of these noble metal nanoparticles. However, before we discuss present research, we will also look into the past. We need to understand the discoveries made before us in order to further our knowledge and technological development (318 references).
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Affiliation(s)
- Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | | | | | - Karuna Giri
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Resham Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Priyabrata Mukherjee
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, MN 55905
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Arvizo RR, Giri K, Moyano D, Miranda OR, Madden B, McCormick DJ, Bhattacharya R, Rotello VM, Kocher JP, Mukherjee P. Identifying new therapeutic targets via modulation of protein corona formation by engineered nanoparticles. PLoS One 2012; 7:e33650. [PMID: 22442705 PMCID: PMC3307759 DOI: 10.1371/journal.pone.0033650] [Citation(s) in RCA: 79] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2012] [Accepted: 02/18/2012] [Indexed: 01/08/2023] Open
Abstract
BACKGROUND We introduce a promising methodology to identify new therapeutic targets in cancer. Proteins bind to nanoparticles to form a protein corona. We modulate this corona by using surface-engineered nanoparticles, and identify protein composition to provide insight into disease development. METHODS/PRINCIPAL FINDINGS Using a family of structurally homologous nanoparticles we have investigated the changes in the protein corona around surface-functionalized gold nanoparticles (AuNPs) from normal and malignant ovarian cell lysates. Proteomics analysis using mass spectrometry identified hepatoma-derived growth factor (HDGF) that is found exclusively on positively charged AuNPs ((+)AuNPs) after incubation with the lysates. We confirmed expression of HDGF in various ovarian cancer cells and validated binding selectivity to (+)AuNPs by Western blot analysis. Silencing of HDGF by siRNA resulted s inhibition in proliferation of ovarian cancer cells. CONCLUSION We investigated the modulation of protein corona around surface-functionalized gold nanoparticles as a promising approach to identify new therapeutic targets. The potential of our method for identifying therapeutic targets was demonstrated through silencing of HDGF by siRNA, which inhibited proliferation of ovarian cancer cells. This integrated proteomics, bioinformatics, and nanotechnology strategy demonstrates that protein corona identification can be used to discover novel therapeutic targets in cancer.
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Affiliation(s)
- Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Karuna Giri
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Daniel Moyano
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Oscar R. Miranda
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Benjamin Madden
- Proteomics Research Center, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Daniel J. McCormick
- Proteomics Research Center, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Resham Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Vincent M. Rotello
- Department of Chemistry, University of Massachusetts, Amherst, Massachusetts, United States of America
| | - Jean-Pierre Kocher
- Biomedical Statistics and Informatics, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
| | - Priyabrata Mukherjee
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, Minnesota, United States of America
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Arvizo RR, Rana S, Miranda OR, Bhattacharya R, Rotello VM, Mukherjee P. Mechanism of anti-angiogenic property of gold nanoparticles: role of nanoparticle size and surface charge. Nanomedicine 2011; 7:580-7. [PMID: 21333757 PMCID: PMC3138823 DOI: 10.1016/j.nano.2011.01.011] [Citation(s) in RCA: 144] [Impact Index Per Article: 11.1] [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: 10/11/2010] [Revised: 01/10/2011] [Accepted: 01/16/2011] [Indexed: 10/18/2022]
Abstract
Discovering therapeutic inorganic nanoparticles (NPs) is evolving as an important area of research in the emerging field of nanomedicine. Recently, we reported the anti-angiogenic property of gold nanoparticles (GNPs): It inhibits the function of pro-angiogenic heparin-binding growth factors (HB-GFs), such as vascular endothelial growth factor 165 (VEGF165) and basic fibroblast growth factor (bFGF), etc. However, the mechanism through which GNPs imparts such an effect remains to be investigated. Using GNPs of different sizes and surface charges, we demonstrate here that a naked GNP surface is required and core size plays an important role to inhibit the function of HB-GFs and subsequent intracellular signaling events. We also demonstrate that the inhibitory effect of GNPs is due to the change in HB-GFs conformation/configuration (denaturation) by the NPs, whereas the conformations of non-HB-GFs remain unaffected. We believe that this significant study will help structure-based design of therapeutic NPs to inhibit the functions of disease-causing proteins.
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Affiliation(s)
- Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Subinoy Rana
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003
| | - Oscar R. Miranda
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003
| | - Resham Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | | | - Priyabrata Mukherjee
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, MN 55905
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Arvizo RR, Miranda OR, Thompson MA, Pabelick CM, Bhattacharya R, Robertson JD, Rotello VM, Prakash Y, Mukherjee P. Effect of nanoparticle surface charge at the plasma membrane and beyond. Nano Lett 2010; 10:2543-8. [PMID: 20533851 PMCID: PMC2925219 DOI: 10.1021/nl101140t] [Citation(s) in RCA: 304] [Impact Index Per Article: 21.7] [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: 05/17/2023]
Abstract
Herein, we demonstrate that the surface charge of gold nanoparticles (AuNPs) plays a critical role in modulating membrane potential of different malignant and nonmalignant cell types and subsequent downstream intracellular events. The findings presented here describe a novel mechanism for cell-nanoparticle interactions and AuNP uptake: modulation of membrane potential and its effect on intracellular events. These studies will help understand the biology of cell-nanoparticle interactions and facilitate the engineering of nanoparticles for specific intracellular targets.
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Affiliation(s)
- Rochelle R. Arvizo
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Oscar R. Miranda
- Department of Chemistry, University of Massachusetts, Amherst, MA 01003
| | - Michael A. Thompson
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Christina M. Pabelick
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Resham Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - J. David Robertson
- Department of Chemistry and University of Missouri Research Reactor, University of Missouri, Columbia, MO 65211
| | | | - Y.S. Prakash
- Department of Anesthesiology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
| | - Priyabrata Mukherjee
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine, Rochester, MN 55905
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine, Rochester, MN 55905
- Mayo Clinic Cancer Center, Mayo Clinic College of Medicine, Rochester, MN 55905
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Nakade H, Jordan BJ, Xu H, Han G, Srivastava S, Arvizo RR, Cooke G, Rotello VM. Chiral Translation and Cooperative Self-Assembly of Discrete Helical Structures Using Molecular Recognition Dyads. J Am Chem Soc 2006; 128:14924-9. [PMID: 17105303 DOI: 10.1021/ja064554z] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Complementary diaminopyridine (DAP) and flavin derivatives self-assemble into discrete helically stacked tetrads in hydrocarbon solvents. The self-assembled structure was demonstrated through induced circular dichroism using DAPs with chiral side-chains and flavin with achiral side-chains. Flavin derivatives with chiral side-chains were synthesized; cooperativity in the self-assembly was established through circular dichroism (CD) profiles and melting curves. It was found that placing stereocenters in both recognition units resulted in a strong bisignated profile and enhancement of complex stability, indicative of cooperative self-assembly.
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Affiliation(s)
- Hiroshi Nakade
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
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Affiliation(s)
- Rochelle R. Arvizo
- a Department of Chemistry , University of Massachusetts , Amherst, MA, 01003, USA
| | - Ayush Verma
- a Department of Chemistry , University of Massachusetts , Amherst, MA, 01003, USA
| | - Vincent M. Rotello
- a Department of Chemistry , University of Massachusetts , Amherst, MA, 01003, USA
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Abstract
A gold nanoparticle functionalized with substrates for alpha-chymotrypsin was fabricated to afford an enzyme modulator that exhibited enzyme-specific activation coupled with general inhibition of other proteases.
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Affiliation(s)
- Chang-Cheng You
- Department of Chemistry, University of Massachusetts, 710 North Pleasant Street, Amherst, MA 01003, USA
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