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Das A, Roy M, Saha M. Recent advances in biomedical applications of carbon and graphene quantum dots: A review. Biotechnol Bioeng 2024; 121:1469-1485. [PMID: 38548663 DOI: 10.1002/bit.28700] [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: 09/29/2023] [Revised: 11/29/2023] [Accepted: 01/03/2024] [Indexed: 04/14/2024]
Abstract
The carbon-based nanostructures have led to the development of theranostic nanoplatforms for simultaneous diagnosis and therapy due to their effective cell membrane-penetration ability, low degree of cytotoxicity, excellent pore volume, substantial chemical stability, and reactive surface. In the last few years, extensive efforts were made to design multifunctional nanoplatform strategies based on carbon nanostructures, involving multimodal imaging, controlled drug release capabilities, sensing in vitro, efficient drug loading capacity, and therapy. Carbon and graphene quantum dots (CQDs and GQDs) were the recent entrants, contingently being assessed for drug delivery and bioimaging. With the advancements, these quantum dots have ignited remarkable research interest and are now widely evaluated for diagnosis, bioimaging, sensing, and drug delivery applications. The last decade has witnessed their remarkable electrical, optical, and biocompatible properties since their inception. It is presumed that both of them have high potential as drug carriers and would serve as the next generation of approaches to address numerous unresolved therapeutic challenges. This review examined the recent advances of CQD and GQD based drug delivery applications, challenges, and future perspectives to pave the way for further studies in the future.
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Affiliation(s)
- Abhijit Das
- Department of Chemistry, National Institute of Technology Agartala, Agartala, Tripura, India
| | - Manas Roy
- Department of Chemistry, National Institute of Technology Agartala, Agartala, Tripura, India
| | - Mitali Saha
- Department of Chemistry, National Institute of Technology Agartala, Agartala, Tripura, India
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2
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Ramana LN, Agarwal V. Nanodiamonds synthesis using sustainable concentrated solar thermal energy: applications in bioimaging and phototherapy. NANOTECHNOLOGY 2021; 32:475602. [PMID: 34380124 DOI: 10.1088/1361-6528/ac1cbd] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/09/2021] [Indexed: 06/13/2023]
Abstract
There is a renewed interest in nanodiamonds and their applications in biology and medicine, especially in bioimaging and photothermal therapy. This is due to their small size, chemical inertness and unique photo-properties such as bright and robust fluorescence, resistant to photobleaching and photothermal response under near infrared (NIR) irradiation. However, the biggest challenge limiting the wide-spread use of nanodiamonds is the high-energy consuming, dangerous and sophisticated synthetic methods currently adopted by industry named higher temperature high pressure approach, and detonation method. Despite over a decade of research towards the development of new synthetic approaches, most of the methods developed to date require sophisticated instrumentations and have high energy demand. To circumvent the reliance on high energy demanding sophisticated experimental setups, here we present a simple synthetic approach using solar energy as a sustainable sole energy source. Using low-grade coal as carbon precursor, we used high power magnifying glasses to concentrate and focus sunlight to induce synthesis of nanodiamonds. The synthesized nanodiamonds exhibit similar physicochemical and photo-properties as nanodiamonds synthesized using other synthetic approaches.In vitrostudies using macrophage Raw 264.7 cells demonstrated rapid uptake and bright fluorescence of the synthesized nanodiamonds with superior biocompatibility (≥95% cell viability). The synthesized nanodiamonds also exhibited dose dependent photothermal response under NIR irradiation.
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Affiliation(s)
- Lakshmi Narashimhan Ramana
- Multidisciplinary Clinical and Translational Research group (MCTR), Translational Health Science and Technology Institute (THSTI), Faridabad 121001, India
| | - Vipul Agarwal
- Cluster for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales, Sydney, NSW 2052, Australia
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3
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Ramana LN, Dinh LNM, Agarwal V. Influence of surface charge of graphene quantum dots on their uptake and clearance in melanoma cells. NANOSCALE ADVANCES 2021; 3:3513-3521. [PMID: 36133718 PMCID: PMC9419262 DOI: 10.1039/d0na00935k] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Accepted: 04/15/2021] [Indexed: 06/13/2023]
Abstract
Graphene quantum dots (GQDs) continue to draw interest in biomedical applications. However, their efficacy gets compromised due to their rapid clearance from the body. On one hand, rapid clearance is desired and considered advantageous in terms of their cytocompatibility, but on the other hand, it is a major limitation for their prolonged use as imaging and therapeutic probes. The uptake and clearance of GQDs have been described in vivo, however, their clearance in vitro is still not understood, one of the main reasons being that their uptake and clearance are a cell type-dependent phenomena. Studies on other types of quantum dots revealed the importance of surface charge in their uptake and retention in different cell types. However, the role of surface chemistry in GQD uptake and clearance has not been described previously. Here, we studied the influence of surface charge on GQDs (anionic and cationic) on their uptake and clearance in melanoma cells. Both cationic and anionic GQDs were synthesized using a hydrothermal method to have a relatively consistent size with an aim to study the role of surface charge in their uptake and clearance in isolation by avoiding size-dependent uptake bias. Both GQDs exhibited excellent biocompatibility with cell viability over 90% even at a high concentration of 200 μg mL-1. Using confocal microscopy and flow cytometry, we observed significantly faster and higher uptake of cationic GQDs compared to anionic GQDs. Consequently, relatively rapid clearance was observed in cells treated with anionic GQDs compared to those treated with cationic GQDs, highlighting the role of surface charge on GQDs in their uptake and clearance. Raman analysis of the cleared exocytosed GQDs revealed no sign of biodegradation of either type.
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Affiliation(s)
- Lakshmi Narashimhan Ramana
- Multidisciplinary Clinical and Translational Research Group (MCTR), Translational Health Science and Technology Institute (THSTI) Faridabad Haryana 121001 India
| | - Le N M Dinh
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Vipul Agarwal
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
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4
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Zhou Y, Teng P, Montgomery NT, Li X, Tang W. Development of Triantennary N-Acetylgalactosamine Conjugates as Degraders for Extracellular Proteins. ACS CENTRAL SCIENCE 2021; 7:499-506. [PMID: 33791431 PMCID: PMC8006166 DOI: 10.1021/acscentsci.1c00146] [Citation(s) in RCA: 75] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Indexed: 05/02/2023]
Abstract
Targeted protein degradation (TPD) technology has drawn significant attention from researchers in both academia and industry. It is rapidly evolved as a new therapeutic modality and also a useful chemical tool in selectively depleting various protein targets. As most efforts focus on cytosolic proteins using PROteolysis TArgeting Chimera (PROTAC), LYsosome TArgeting Chimera (LYTAC) recently emerged as a promising technology to deliver extracellular protein targets to lysosome for degradation through the cation-independent mannose-6-phosphate receptor (CI-M6PR). In this study, we exploited the potential of the asialoglycoprotein receptor (ASGPR), a lysosomal targeting receptor specifically expressed on liver cells, for the degradation of extracellular proteins including membrane proteins. The ligand of ASGPR, triantennary N-acetylgalactosamine (tri-GalNAc), was conjugated to biotin, antibodies, or fragments of antibodies to generate a new class of degraders. We demonstrated that the extracellular protein targets could be successfully internalized and delivered into lysosome for degradation in liver cell lines specifically by these degraders. This work will add a new dimension to TPD with cell type specificity.
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Affiliation(s)
- Yaxian Zhou
- School
of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 56305, United States
| | - Peng Teng
- School
of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 56305, United States
| | - Nathan T. Montgomery
- School
of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 56305, United States
| | - Xiaolei Li
- School
of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 56305, United States
| | - Weiping Tang
- School
of Pharmacy, University of Wisconsin−Madison, Madison, Wisconsin 56305, United States
- Department
of Chemistry, University of Wisconsin−Madison, Madison, Wisconsin 56306, United States
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5
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Trang Phan TK, Tran TQ, Nguyen Pham DT, Nguyen DT. Characterization, Release Pattern, and Cytotoxicity of Liposomes Loaded With α-Mangostin Isolated From Pericarp of Mangosteen (Garcinia mangostanaL.). Nat Prod Commun 2020. [DOI: 10.1177/1934578x20974559] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
The pericarp of Garcinia mangostana L. is a rich source of α-mangostin, which exhibits a wide range of pharmacological and biological activities. However, clinical use of this compound is limited due to its low water solubility. Therefore, its formulation with various delivery systems has been developed. In the present study, α-mangostin was isolated from G. mangostana pericarp extract and loaded onto newly synthesized liposomes. The system was evaluated for in vitro drug release at pH 5.5 and 7.4 during 96 hours of experiment, followed by cytotoxicity measurement against Hep-G2 cells. α-Mangostin was obtained in a high yield (1.86%) and its chemical structure was confirmed using nuclear magnetic resonance and Fourier-transform infrared spectroscopy. The compound was then loaded onto liposomes with relatively high efficiency (55.3% ± 2.3%). The compound was released in a sustained manner and exhibited significant cytotoxic activity against Hep-G2 cells. The present study provides important insights into liposome applications for α-mangostin delivery, thus improving the compound’s limitations and enabling further in vivo studies on its safety and efficacy.
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Affiliation(s)
- Thi Kieu Trang Phan
- Institute of Genome Research, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Toan Quoc Tran
- Institute of Natural Products Chemistry, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
| | - Dung Thuy Nguyen Pham
- Center of Excellence for Biochemistry and Natural Products, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
- NTT Hi-Tech Institute, Nguyen Tat Thanh University, Ho Chi Minh City, Vietnam
| | - Duong Thanh Nguyen
- Graduate University of Science and Technology, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
- Institute of Chemistry, Vietnam Academy of Science and Technology (VAST), Hoang Quoc Viet, Cau Giay, Hanoi, Vietnam
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6
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H M, S H, N QI, R M, A M, R S, L S S, K B, P B, H D, P N N, M M, Y N. Surface refined Au Quercetin nanoconjugate stimulates dermal cell migration: possible implication in wound healing. RSC Adv 2020; 10:37683-37694. [PMID: 35515178 PMCID: PMC9057138 DOI: 10.1039/d0ra06690g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Accepted: 09/16/2020] [Indexed: 01/13/2023] Open
Abstract
Refining nutraceutical conjugated metal nanoparticles (NPs) and understanding their interactions with the cellular micro-environment is necessary for their application in nanomedicine. In the present experiment, we studied the effect of quercetin functionalized gold nanoparticles (AuQurNP) on skin fibroblast and keratinocyte cell migration. Spherical shaped AuQurNPs of 47 nm in size were formed due to the interaction of hydroxyl and carbonyl groups of quercetin with Au atoms as revealed by incremental algorithm-based analysis. AuQurNP containing up to 5 μg l−1 of Au with quercetin (5.2 ± 1.6 ng ml−1) was least toxic to fibroblasts. AuQurNP effectively reduced the generation of intracellular ROS (up to 63%) through free-radical scavenging activity. AuQurNP also enhanced the rate of migration of fibroblasts (24 h) and keratinocytes (20 h) in artificially created wounds. The rate of migration of the cells towards the wound edge was in the order of AuQurNP > control > quercetin > AuNP. AuQurNP also significantly increased the expression of TGFβ1 protein, thereby inducing the downstream SMAD complex (SMAD 2–4). Downregulation of the inhibitory protein SMAD 7 by AuQurNP helped in the nuclear translocation of SMADs 3 and 4. Collectively, the present in vitro study demonstrates the action of AuQurNP on the SMAD family and the interconnected molecular mechanism leading to the cell migration process. AuQuercetin nano conjugates enhances cell migration via TGFβ1.![]()
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Affiliation(s)
- Madhyastha H
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
| | - Halder S
- School of Biosciences and Technology, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Queen Intan N
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
| | - Madhyastha R
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
| | - Mohanapriya A
- School of Biosciences and Technology, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Sudhakaran R
- School of Biosciences and Technology, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Sajitha L S
- School of Biosciences and Technology, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Banerjee K
- School of Biosciences and Technology, Vellore Institute of Technology Vellore 632014 Tamilnadu India
| | - Bethasiwi P
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
| | - Daima H
- Amity Center for Nanobiotechnology and Nanomedicine, Amity Institute of Biotechnology, Amity University Rajasthan Jaipur 303002 Rajasthan India
| | - Navya P N
- Department of Biotechnology, Bannari Amman Institute of Technology Sathyamangalam Erode 638401 Tamilnadu India
| | - Maruyama M
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
| | - Nakajima Y
- Department of Applied Physiology, Faculty of Medicine, University of Miyazaki Miyazaki 889 1692 Japan
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7
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Samantaray PK, Indrakumar S, Chatterjee K, Agarwal V, Bose S. 'Template-free' hierarchical MoS 2 foam as a sustainable 'green' scavenger of heavy metals and bacteria in point of use water purification. NANOSCALE ADVANCES 2020; 2:2824-2834. [PMID: 36132388 PMCID: PMC9419618 DOI: 10.1039/c9na00747d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2019] [Accepted: 05/05/2020] [Indexed: 05/13/2023]
Abstract
Molybdenum disulfide (MoS2), with its unique optical and electrical properties, has been explored for a variety of applications in the recent past. Still, its capabilities in point-of-use heavy metal ion removal remain to be explored. Herein, for the first time using a facile approach, we fabricated three-dimensional (3D) MoS2 foam from exfoliated single to few-layered MoS2 sheets for the selective exclusion of heavy metals and stringent bactericidal response. This foam was able to exclude 99.9% of Pb(ii) and 98.7% of As(iii) instantaneously and reduced more than 98% of bacteria E. coli. Moreover, the foam exhibits selective toxicity towards bacterial cells while showing no observable toxicity towards mammalian cells. The foam can be recycled and reused for at least five cycles under accelerated conditions and thus can be used for a promising non-cytotoxic, facile, and environmentally benign process for inline water remediation to remove heavy metal ions from the feed and as a potential antibacterial agent.
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Affiliation(s)
- Paresh Kumar Samantaray
- Centre for BioSystems Science and Engineering, Indian Institute of Science Bangalore India
- Department of Materials Engineering, Indian Institute of Science Bangalore India
| | - Sushma Indrakumar
- Department of Materials Engineering, Indian Institute of Science Bangalore India
| | - Kaushik Chatterjee
- Centre for BioSystems Science and Engineering, Indian Institute of Science Bangalore India
- Department of Materials Engineering, Indian Institute of Science Bangalore India
- Manipal Institute of Regenerative Medicine, Manipal Academy of Higher Education Bangalore India
| | - Vipul Agarwal
- Department of Materials Engineering, Indian Institute of Science Bangalore India
- Centre for Advanced Macromolecular Design (CAMD), School of Chemical Engineering, University of New South Wales Sydney NSW 2052 Australia
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science Bangalore India
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8
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Toshniwal P, Nguyen M, Guédin A, Viola H, Ho D, Kim Y, Bhatt U, Bond CS, Hool L, Hurley LH, Mergny JL, Fear M, Wood F, Iyer SK, Smith NM. TGF-β-induced fibrotic stress increases G-quadruplex formation in human fibroblasts. FEBS Lett 2019; 593:3149-3161. [PMID: 31677274 DOI: 10.1002/1873-3468.13658] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2019] [Revised: 10/07/2019] [Accepted: 10/22/2019] [Indexed: 11/11/2022]
Abstract
Scar formation after wound healing is a major medical problem. A better understanding of the dynamic nuclear architecture of the genome during wound healing could provide insights into the underlying pathophysiology and enable novel therapeutic strategies. Here, we demonstrate that TGF-β-induced fibrotic stress increases formation of the dynamic secondary DNA structures called G-quadruplexes in skin fibroblasts, which is coincident with increased expression of collagen 1. This G-quadruplex formation is attenuated by a small molecule inhibitor of intracellular Ca2+ influx and an anti-fibrotic compound. In addition, we identify G-quadruplex-forming sequences in the promoter region of COL1A1, which encodes collagen 1, and confirm their ability to form G-quadruplex structures under physiologically relevant conditions. Our findings reveal a link between G-quadruplexes and scar formation that may lead to novel therapeutic interventions.
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Affiliation(s)
- Priyanka Toshniwal
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Michelle Nguyen
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Aurore Guédin
- ARNA Laboratory, IECB, INSERM U1212, CNRS UMR5320, Université de Bordeaux, Pessac, France
| | - Helena Viola
- School of Human Sciences, The University of Western Australia, Perth, Australia
| | - Diwei Ho
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Yongeun Kim
- College of Pharmacy, University of Arizona, Tucson, Arizona, USA
| | - Uditi Bhatt
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Charles S Bond
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Livia Hool
- School of Human Sciences, The University of Western Australia, Perth, Australia.,Victor Chang Cardiac Research Institute, Sydney, Australia
| | | | - Jean-Louis Mergny
- ARNA Laboratory, IECB, INSERM U1212, CNRS UMR5320, Université de Bordeaux, Pessac, France.,Institut Curie, CNRS UMR9187, INSERM U1196, Université Paris Saclay, Orsay, France
| | - Mark Fear
- Fiona Wood Foundation and Burn Injury Research Unit, The University of Western Australia, Perth, Australia
| | - Fiona Wood
- Fiona Wood Foundation and Burn Injury Research Unit, The University of Western Australia, Perth, Australia
| | - Swaminathan K Iyer
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
| | - Nicole M Smith
- School of Molecular Sciences, The University of Western Australia, Perth, Australia
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9
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Huang J, Dong J, Shi X, Chen Z, Cui Y, Liu X, Ye M, Li L. Dual-Functional Titanium(IV) Immobilized Metal Affinity Chromatography Approach for Enabling Large-Scale Profiling of Protein Mannose-6-Phosphate Glycosylation and Revealing Its Predominant Substrates. Anal Chem 2019; 91:11589-11597. [PMID: 31398006 PMCID: PMC7293878 DOI: 10.1021/acs.analchem.9b01698] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Mannose-6-phosphate (M6P) glycosylation is an important post-translational modification (PTM) and plays a crucial role in transferring lysosomal hydrolases to lysosome, and is involved in several other biological processes. Aberrant M6P modifications have been implicated in lysosomal storage diseases and numerous other disorders including Alzheimer's disease and cancer. Research on profiling of intact M6P glycopeptides remains challenging due to its extremely low stoichiometry. Here we propose a dual-mode affinity approach to enrich M6P glycopeptides by dual-functional titanium(IV) immobilized metal affinity chromatography [Ti(IV)-IMAC] materials. In combination with state-of-the-art mass spectrometry and database search engine, we profiled 237 intact M6P glycopeptides corresponding to 81 M6P glycoproteins in five types of tissues in mouse, representing the first large-scale profiling of M6P glycosylation in mouse samples. The analysis of M6P glycoforms revealed the predominant glycan substrates of this PTM. Gene ontology analysis showed that overrepresented M6P glycoproteins were lysosomal-associated proteins. However, there were still substantial M6P glycoproteins that possessed different subcellular locations and molecular functions. Deep mining of their roles implicated in lysosomal and nonlysosomal function can provide new insights into functional roles of this important yet poorly studied modification.
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Affiliation(s)
- Junfeng Huang
- School of Pharmacy, University of Wisconsin, Madison, WI 53705, USA
| | - Jing Dong
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, China
| | - Xudong Shi
- Department of Surgery, University of Wisconsin-Madison, Madison, WI 53705, USA
| | - Zhengwei Chen
- Department of Chemistry, University of Wisconsin, Madison, WI 53705, USA
| | - Yusi Cui
- Department of Chemistry, University of Wisconsin, Madison, WI 53705, USA
| | - Xiaoyan Liu
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, China
| | - Mingliang Ye
- CAS Key Laboratory of Separation Sciences for Analytical Chemistry, National Chromatographic R&A Center, Dalian Institute of Chemical Physics, Chinese Academy of Sciences (CAS), Dalian, China
| | - Lingjun Li
- School of Pharmacy, University of Wisconsin, Madison, WI 53705, USA
- Department of Chemistry, University of Wisconsin, Madison, WI 53705, USA
- School of Life Sciences, Tianjin University, Tianjin 300072, China
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10
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Comparative study of keratin extraction from human hair. Int J Biol Macromol 2019; 133:382-390. [DOI: 10.1016/j.ijbiomac.2019.04.098] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2018] [Revised: 04/01/2019] [Accepted: 04/12/2019] [Indexed: 01/19/2023]
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11
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Parviz M, Toshniwal P, Viola HM, Hool LC, Fear PMW, Wood FM, Gaus K, Iyer KS, Gooding JJ. Real-Time Bioimpedance Sensing of Antifibrotic Drug Action in Primary Human Cells. ACS Sens 2017; 2:1482-1490. [PMID: 28871791 DOI: 10.1021/acssensors.7b00442] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Fibrotic diseases are among the most serious health issues with severe burdens due to their chronic nature and a large number of patients suffering from the debilitating effects and long-term sequelae. Collagenase treatment is a nonsurgical option but has limited results. To date, there is no potent noninvasive solution for fibrosis. Part of the reason for this is the lack of appropriate in vitro live cell screening tools to assess the efficacy of new therapeutical agents. Here, we demonstrate the utility of a cell-based electrochemical impedance biosensor platform to screen the efficacy of potential antifibrotic compounds. The platform employs a label-free and noninvasive strategy to detect the progression of fibrosis and the potency of the antifibrotic molecules in real-time. The fundamental principle that governs this novel system is that dynamic changes in cell shape and adhesion during fibrosis can be measured accurately by monitoring the changes in the impedance. This is achieved by growing the cells on a transparent interdigitated indium tin oxide (ITO) electrodes. It was demonstrated by monitoring the efficacy of a model antifibrotic compound, PXS64, on cells collected from patients with Dupuytren's contracture. We confirmed the validity of the developed biochemical impedance biosensor as an tool for in vitro screening of antifibrotic compounds and provided quantitative information on subcellular influences of the examined chemical molecules using correlative microscopy analyses that monitor the average cell area, cell morphology, and the amount and directionality of the deposited extracellular matrix protein collagen and measurement of cytosolic Ca2+ changes.
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Affiliation(s)
| | | | | | - Livia C. Hool
- Victor Chang Cardiac Research Institute, Darlinghurst, New South Wales 2010, Australia
| | - P. Mark W. Fear
- Burns
Service of Western Australia, Royal Perth Hospital, Perth, Western Australia 6000, Australia
| | - Fiona M. Wood
- Burns
Service of Western Australia, Royal Perth Hospital, Perth, Western Australia 6000, Australia
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12
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Fei X, Zavorka ME, Malik G, Connelly CM, MacDonald RG, Berkowitz DB. General Linker Diversification Approach to Bivalent Ligand Assembly: Generation of an Array of Ligands for the Cation-Independent Mannose 6-Phosphate Receptor. Org Lett 2017; 19:4267-4270. [PMID: 28753028 PMCID: PMC6208139 DOI: 10.1021/acs.orglett.7b01914] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A generalized strategy is presented for the rapid assembly of a set of bivalent ligands with a variety of linking functionalities from a common monomer. Herein, an array of phosphatase-inert mannose-6-phosphonate-presenting ligands for the cation-independent-mannose 6-phosphate receptor (CI-MPR) is constructed. Receptor binding affinity varies with linking functionality-the simple amide and 1,5-triazole(tetrazole) being preferred over the 1,4-triazole. This approach is expected to find application across chemical biology, particularly in glycoscience, wherein multivalency often governs molecular recognition.
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Affiliation(s)
- Xiang Fei
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, United States
| | - Megan E. Zavorka
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198-5870, United States
| | - Guillaume Malik
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, United States
| | - Christopher M. Connelly
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198-5870, United States
| | - Richard G. MacDonald
- Department of Biochemistry & Molecular Biology, University of Nebraska Medical Center, Omaha, Nebraska 68198-5870, United States
| | - David B. Berkowitz
- Department of Chemistry, University of Nebraska, Lincoln, Nebraska 68588-0304, United States
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13
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Agarwal V, Wood FM, Fear M, Iyer KS. Polymeric Nanofibre Scaffold for the Delivery of a Transforming Growth Factor β1 Inhibitor. Aust J Chem 2017. [DOI: 10.1071/ch16332] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Skin scarring is a highly prevalent and inevitable outcome of adult mammalian wound healing. Scar tissue is both pathologically and aesthetically inferior to the normal skin owing to elevated concentration of highly orientated collagen I architecture in the innate repaired tissue. With highly invasive surgery being the main treatment modality, there is a great need for alternative strategies to mitigate the problem of scar formation. Tissue engineering approaches using polymeric scaffolds have shown tremendous promise in various disease models including skin wound healing; however, the problem of skin scarring has been greatly overlooked. Herein, we developed an electrospun poly(glycidyl methacrylate) (ES-PGMA) scaffold incorporating a small-molecule antiscarring agent, PXS64. PXS64, a lipophilic neutral analogue of mannose-6-phosphate, has been shown to inhibit the activation of transforming growth factor β1 (TGFβ1). TGFβ1 is a primary protein cytokine regulating the expression of collagen I during wound healing and therefore governs the formation of scar tissue. The nanofibres were tested for biocompatibility as a tissue engineering scaffold and for their efficacy to inhibit TGFβ1 activation in human dermal skin fibroblasts.
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Das S, Parekh N, Mondal B, Gupta SS. Controlled Synthesis of End-Functionalized Mannose-6-phosphate Glycopolypeptides for Lysosome Targeting. ACS Macro Lett 2016; 5:809-813. [PMID: 35614754 DOI: 10.1021/acsmacrolett.6b00297] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
The ubiquitous expression of the mannose-6-phosphate receptor on the majority of human cells makes it a valid target in the quest to deliver therapeutics selectively to the lysosome. In this work end-functionalized polyvalent mannose-6-phosphate glycopolypeptides (M6P-GPs) with high molecular weights (up to 22 kDa) have been synthesized via NCA polymerization. These synthetic M6P-GPs were found to display minimal toxicity to cells in vitro and show exceptional selectivity for trafficking into lysosomes in various cell lines. Comparison of the cellular uptake behavior of M6P-GP and the corresponding mannose-GP polymer reveals that incorporation of the phosphate moiety at the 6-position of mannose completely alters its trafficking behavior and becomes exclusively lysosome specific. We also demonstrate that trafficking of M6P-GPs in mammalian cells is likely associated with the CI-MPR receptor pathway.
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Affiliation(s)
- Soumen Das
- CReST Chemical Engineering
Division, CSIR National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Nimisha Parekh
- CReST Chemical Engineering
Division, CSIR National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Basudeb Mondal
- CReST Chemical Engineering
Division, CSIR National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
| | - Sayam Sen Gupta
- CReST Chemical Engineering
Division, CSIR National Chemical Laboratory, Dr. Homi Bhabha Road, Pune 411008, India
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