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Hossen F, Geng X, Sun GY, Yao X, Lee JC. Oligomeric Amyloid-β and Tau Alter Cell Adhesion Properties and Induce Inflammatory Responses in Cerebral Endothelial Cells Through the RhoA/ROCK Pathway. Mol Neurobiol 2024:10.1007/s12035-024-04138-z. [PMID: 38561558 DOI: 10.1007/s12035-024-04138-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 03/19/2024] [Indexed: 04/04/2024]
Abstract
Dysfunction of cerebral endothelial cells (CECs) has been implicated in the pathology of Alzheimer's disease (AD). Despite evidence showing cytotoxic effects of oligomeric amyloid-β (oAβ) and Tau (oTau) in the central nervous system, their direct effects on CECs have not been fully investigated. In this study, we examined the direct effects of oAβ, oTau, and their combination on cell adhesion properties and inflammatory responses in CECs. We found that both oAβ and oTau increased cell stiffness, as well as the p-selectin/Sialyl-LewisX (sLeX) bonding-mediated membrane tether force and probability of adhesion in CECs. Consistent with these biomechanical alterations, treatments with oAβ or oTau also increased actin polymerization and the expression of p-selectin at the cell surface. These toxic oligomeric peptides also triggered inflammatory responses, including upregulations of p-NF-kB p65, IL-1β, and TNF-α. In addition, they rapidly activated the RhoA/ROCK pathway. These biochemical and biomechanical changes were further enhanced by the treatment with the combination of oAβ and oTau, which were significantly suppressed by Fasudil, a specific inhibitor for the RhoA/ROCK pathway. In conclusion, our data suggest that oAβ, oTau, and their combination triggered subcellular mechanical alterations and inflammatory responses in CECs through the RhoA/ROCK pathway.
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Affiliation(s)
- Faruk Hossen
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Xue Geng
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - Grace Y Sun
- Department of Biochemistry, University of Missouri, Columbia, MO, 65211, USA
| | - Xincheng Yao
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA
| | - James C Lee
- Richard and Loan Hill Department of Biomedical Engineering, University of Illinois at Chicago, Chicago, IL, 60607, USA.
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2
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Kulkarni T, Robinson OM, Dutta A, Mukhopadhyay D, Bhattacharya S. Machine learning-based approach for automated classification of cell and extracellular matrix using nanomechanical properties. Mater Today Bio 2024; 25:100970. [PMID: 38312803 PMCID: PMC10835007 DOI: 10.1016/j.mtbio.2024.100970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Revised: 01/16/2024] [Accepted: 01/19/2024] [Indexed: 02/06/2024] Open
Abstract
Fibrosis characterized by excess accumulation of extracellular matrix (ECM) due to complex cell-ECM interactions plays a pivotal role in pathogenesis. Herein, we employ the pancreatic ductal adenocarcinoma (PDAC) model to investigate dynamic alterations in nanomechanical attributes arising from the cell-ECM interactions to study the fibrosis paradigm. Several segregated studies performed on cellular and ECM components fail to recapitulate their complex collaboration. We utilized collagen and fibronectin, the two most abundant PDAC ECM components, and studied their nanomechanical attributes. We demonstrate alteration in morphology and nanomechanical attributes of collagen with varying thicknesses of collagen gel. Furthermore, by mixing collagen and fibronectin in various stoichiometry, their nanomechanical attributes were observed to vary. To demonstrate the dynamicity and complexity of cell-ECM, we utilized Panc-1 and AsPC-1 cells with or without collagen. We observed that Panc-1 and AsPC-1 cells interact differently with collagen and vice versa, evident from their alteration in nanomechanical properties. Further, using nanomechanics data, we demonstrate that ML-based techniques were able to classify between ECM as well as cell, and cell subtypes in the presence/absence of collagen with higher accuracy. This work demonstrates a promising avenue to explore other ECM components facilitating deeper insights into tumor microenvironment and fibrosis paradigm.
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Affiliation(s)
- Tanmay Kulkarni
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
| | - Olivia-Marie Robinson
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
| | - Ayan Dutta
- School of Computing, University of North Florida, Jacksonville, FL, 32224 USA
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
| | - Santanu Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, 4500 San Pablo Road South, Jacksonville, FL, 32224, USA
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3
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Liu S, Han Y, Kong L, Wang G, Ye Z. Atomic force microscopy in disease-related studies: Exploring tissue and cell mechanics. Microsc Res Tech 2024; 87:660-684. [PMID: 38063315 DOI: 10.1002/jemt.24471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2023] [Revised: 10/22/2023] [Accepted: 11/26/2023] [Indexed: 03/02/2024]
Abstract
Despite significant progress in human medicine, certain diseases remain challenging to promptly diagnose and treat. Hence, the imperative lies in the development of more exhaustive criteria and tools. Tissue and cellular mechanics exhibit distinctive traits in both normal and pathological states, suggesting that "force" represents a promising and distinctive target for disease diagnosis and treatment. Atomic force microscopy (AFM) holds great promise as a prospective clinical medical device due to its capability to concurrently assess surface morphology and mechanical characteristics of biological specimens within a physiological setting. This review presents a comprehensive examination of the operational principles of AFM and diverse mechanical models, focusing on its applications in investigating tissue and cellular mechanics associated with prevalent diseases. The findings from these studies lay a solid groundwork for potential clinical implementations of AFM. RESEARCH HIGHLIGHTS: By examining the surface morphology and assessing tissue and cellular mechanics of biological specimens in a physiological setting, AFM shows promise as a clinical device to diagnose and treat challenging diseases.
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Affiliation(s)
- Shuaiyuan Liu
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Yibo Han
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
| | - Lingwen Kong
- Department of Cardiothoracic Surgery, Central Hospital of Chongqing University, Chongqing Emergency Medical Center, Chongqing, China
| | - Guixue Wang
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
- JinFeng Laboratory, Chongqing, China
| | - Zhiyi Ye
- Key Laboratory for Biorheological Science and Technology of Ministry of Education, State and Local Joint Engineering Laboratory for Vascular Implants, Bioengineering College of Chongqing University, Chongqing, China
- JinFeng Laboratory, Chongqing, China
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4
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Kulkarni T, Angom RS, Wang E, Mukhopadhyay D, Bhattacharya S. Surface Chemistry of Gold Nanoparticles Modulates Cytokines and Nanomechanical Properties in Pancreatic Cancer Cell Lines: A Correlative Study. FORTUNE JOURNAL OF HEALTH SCIENCES 2024; 7:112-127. [PMID: 38706513 PMCID: PMC11065124 DOI: 10.26502/fjhs.170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/07/2024]
Abstract
Surface chemistry of nanoparticles play significant role in their cellular interaction. Along with other group, we previously demonstrated that dynamic alteration of cell membrane during uptake of gold nanoparticles can be thoroughly probed by nanomechanical properties of cell membrane. Additionally, endocytosis influences intracellular cytokines expression that also impact membrane stiffness. Hence, we have hypothesized that surface chemistry of gold nanoparticles influences intracellular cytokines which in turn imparts dynamic alteration of nanomechanical properties of cellular membrane of pancreatic cancer cells. Various gold nanoparticles decorated with targeting peptide, polyethylene glycol or their combinations have been used to treat two pancreatic cancer cell lines, Panc-1 and AsPC1, for 1 and 24 hours. Atomic force microscope is used to measure linear and nonlinear nanomechanical properties of cell membrane. Intracellular cytokine has been measured using real time polymeric chain reaction. We evaluated several criteria such as receptor dependent vs independent, PEGylated vs non-PEGylated and different timepoints, to deduce correlations between cytokines and nanomechanical attributes. We have identified unique relationship pro-tumorigenic cytokines with both linear and non-linear nanomechanical properties of Panc-1 and AsPC1 cell membrane during uptake of pristine gold nanoparticles or for PEGylation and for targeting peptide conjugation at the nanoparticle surface.
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Affiliation(s)
- Tanmay Kulkarni
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
| | - Ramcharan Singh Angom
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
| | - Enfeng Wang
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
| | - Santanu Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicines and Science, Jacksonville, FL, United States
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5
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Pietrangelo T, Santangelo C, Bondi D, Cocci P, Piccinelli R, Piacenza F, Rosato E, Azman SNA, Binetti E, Farina M, Locatelli M, Brunetti V, Le Donne C, Marramiero L, Di Filippo ES, Verratti V, Fulle S, Scollo V, Palermo F. Endurance-dependent urinary extracellular vesicle signature: shape, metabolic miRNAs, and purine content distinguish triathletes from inactive people. Pflugers Arch 2023; 475:691-709. [PMID: 37156970 DOI: 10.1007/s00424-023-02815-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 04/11/2023] [Accepted: 04/17/2023] [Indexed: 05/10/2023]
Abstract
Extracellular vesicles (EVs) enriched with bioactive molecules have gained considerable attention in nanotechnology because they are critical to intercellular communication while maintaining low immunological impact. Among biological matrices, urine has emerged as a noninvasive source of extracellular-contained liquid biopsy, currently of interest as a readout for physiological adaptations. Therefore, we aimed to evaluate chronic adaptations of endurance sport practice in terms of urinary EV parameters and evaluated by food consumption assessment. Two balanced groups of 13 inactive controls vs. triathlon athletes were enrolled; their urinary EVs were obtained by differential ultracentrifugation and analyzed by dynamic light scattering and transmission electron and atomic force microscopy. The cargo was analyzed by means of purine and miRNA content through HPLC-UV and qRT-PCR. Specific urinary EV signatures differentiated inactive versus endurance-trained in terms of peculiar shape. Particularly, a spheroid shape, smaller size, and lower roughness characterize EVs from triathletes. Metabolic and regulatory miRNAs often associated with skeletal muscle (i.e., miR378a-5p, miR27a-3p, miR133a, and miR206) also accounted for a differential signature. These miRNAs and guanosine in urinary EVs can be used as a readout for metabolic status along with the shape and roughness of EVs, novel informative parameters that are rarely considered. The network models allow scholars to entangle nutritional and exercise factors related to EVs' miRNA and purine content to depict metabolic signatures. All in all, multiplex biophysical and molecular analyses of urinary EVs may serve as promising prospects for research in exercise physiology.
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Affiliation(s)
- Tiziana Pietrangelo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Carmen Santangelo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Danilo Bondi
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy.
| | - Paolo Cocci
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
| | - Raffaela Piccinelli
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics, Roma, Italy
| | - Francesco Piacenza
- IRCCS-Istituto Nazionale di Riposo e Cura per Anziani, Polo Scientifico e Tecnologico, Centro di Tecnologie Avanzate nell'Invecchiamento, Ancona, Italy
| | - Enrica Rosato
- Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - S N Afifa Azman
- Department of Information Engineering, Polytechnic University of Marche, Ancona, Italy
| | - Enrico Binetti
- Center for Biomolecular Nanotechnologies, Italian Institute of Technology, Lecce, Italy
- Institute for Microelectronics and Microsystems, National Research Council of Italy, Lecce, Italy
| | - Marco Farina
- Department of Information Engineering, Polytechnic University of Marche, Ancona, Italy
| | - Marcello Locatelli
- Department of Pharmacy, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Virgilio Brunetti
- Center for Biomolecular Nanotechnologies, Italian Institute of Technology, Lecce, Italy
| | - Cinzia Le Donne
- Research Centre for Food and Nutrition, Council for Agricultural Research and Economics, Roma, Italy
| | - Lorenzo Marramiero
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Ester Sara Di Filippo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Vittore Verratti
- Department of Psychological, Health and Territorial Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Stefania Fulle
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Valentina Scollo
- Department of Neuroscience, Imaging and Clinical Sciences, University "G. d'Annunzio" Chieti-Pescara, Chieti, Italy
| | - Francesco Palermo
- School of Biosciences and Veterinary Medicine, University of Camerino, Camerino, Italy
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6
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Beltrán-Partida E, Valdez-Salas B, García-López Portillo M, Gutierrez-Perez C, Castillo-Uribe S, Salvador-Carlos J, Alcocer-Cañez J, Cheng N. Atherosclerotic-Derived Endothelial Cell Response Conducted by Titanium Oxide Nanotubes. MATERIALS (BASEL, SWITZERLAND) 2023; 16:794. [PMID: 36676534 PMCID: PMC9865858 DOI: 10.3390/ma16020794] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/16/2022] [Revised: 01/04/2023] [Accepted: 01/11/2023] [Indexed: 06/17/2023]
Abstract
Atherosclerosis lesions are described as the formation of an occlusive wall-vessel plaque that can exacerbate infarctions, strokes, and even death. Furthermore, atherosclerosis damages the endothelium integrity, avoiding proper regeneration after stent implantation. Therefore, we investigate the beneficial effects of TiO2 nanotubes (NTs) in promoting the initial response of detrimental human atherosclerotic-derived endothelial cells (AThEC). We synthesized and characterized NTs on Ti6Al4V by anodization. We isolated AThEC and tested the adhesion long-lasting proliferation activity, and the modulation of focal adhesions conducted on the materials. Moreover, ultrastructural cell-surface contact at the nanoscale and membrane roughness were evaluated to explain the results. Our findings depicted improved filopodia and focal adhesions stimulated by the NTs. Similarly, the NTs harbored long-lasting proliferative metabolism after 5 days, explained by overcoming cell-contact interactions at the nanoscale. Furthermore, the senescent activity detected in the AThEC could be mitigated by the modified membrane roughness and cellular stretch orchestrated by the NTs. Importantly, the NTs stimulate the initial endothelial anchorage and metabolic recovery required to regenerate the endothelial monolayer. Despite the dysfunctional status of the AThEC, our study brings new evidence for the potential application of nano-configured biomaterials for innovation in stent technologies.
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Affiliation(s)
- Ernesto Beltrán-Partida
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - Benjamín Valdez-Salas
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - Martha García-López Portillo
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - Claudia Gutierrez-Perez
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - Sandra Castillo-Uribe
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - Jorge Salvador-Carlos
- Laboratorio de Biología Molecular y Cáncer, Instituto de Ingeniería, Universidad Autónoma de Baja California, Blvd. Benito Juárez y Calle de la Normal s/n, Mexicali C.P. 21040, Baja California, Mexico
| | - José Alcocer-Cañez
- Coordinación Clínica de Cirugía, Hospital General de Zona No. 30, Instituto Mexicano del Seguro Social (IMSS), Av. Lerdo de Tejada s/n, Mexicali C.P. 21100, Baja California, Mexico
| | - Nelson Cheng
- Magna International Pte Ltd., 10 H Enterprise Road, Singapore 629834, Singapore
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7
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Sakamuri SSVP, Sure VN, Wang X, Bix G, Fonseca VA, Mostany R, Katakam PVG. Amyloid [Formula: see text] (1-42) peptide impairs mitochondrial respiration in primary human brain microvascular endothelial cells: impact of dysglycemia and pre-senescence. GeroScience 2022; 44:2721-2739. [PMID: 35978067 PMCID: PMC9768086 DOI: 10.1007/s11357-022-00644-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/11/2022] [Accepted: 08/08/2022] [Indexed: 01/07/2023] Open
Abstract
Diabetes increases the risk of Alzheimer's disease (AD). We investigated the impact of glucose concentrations on the β-amyloid (Aβ)-induced alteration of mitochondrial/cellular energetics in primary human brain microvascular endothelial cells (HBMECs). HBMECs were grown and passaged in media containing 15 mmol/l glucose (normal) based on which the glucose levels in the media were designated as high (25 mmol/L) or low (5 mmol/L). HBMECs were treated with Aβ (1-42) (5 µmol/l) or a scrambled peptide for 24 h and mitochondrial respiratory parameters were measured using Seahorse Mito Stress Test. Aβ (1-42) decreased the mitochondrial ATP production at normal glucose levels and decreased spare respiratory capacity at high glucose levels. Aβ (1-42) diminished all mitochondrial respiratory parameters markedly at low glucose levels that were not completely recovered by restoring normal glucose levels in the media. The addition of mannitol (10 mmol/l) to low and normal glucose-containing media altered the Aβ (1-42)-induced bioenergetic defects. Even at normal glucose levels, pre-senescent HMBECs (passage 15) displayed greater Aβ (1-42)-induced mitochondrial respiratory impairments than young cells (passages 7-9). Thus, hypoglycemia, osmolarity changes, and senescence are stronger instigators of Aβ (1-42)-induced mitochondrial respiration and energetics in HBMECs and contributors to diabetes-related increased AD risk than hyperglycemia.
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Affiliation(s)
- Siva S. V. P. Sakamuri
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
| | - Venkata N. Sure
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
| | - Xiaoying Wang
- Department of Neurosurgery, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
- Tulane Brain Institute, Tulane University, 200 Flower Hall, LA 70118 New Orleans, USA
- Clinical Neuroscience Research Center, 131 S. Robertson, Suite 1300, New Orleans, LA 70112 USA
| | - Gregory Bix
- Department of Neurosurgery, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
- Tulane Brain Institute, Tulane University, 200 Flower Hall, LA 70118 New Orleans, USA
- Clinical Neuroscience Research Center, 131 S. Robertson, Suite 1300, New Orleans, LA 70112 USA
| | - Vivian A. Fonseca
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
- Department of Medicine, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
| | - Ricardo Mostany
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
- Tulane Brain Institute, Tulane University, 200 Flower Hall, LA 70118 New Orleans, USA
| | - Prasad V. G. Katakam
- Department of Pharmacology, Tulane University School of Medicine, 1430 Tulane Avenue, New Orleans, LA 70112 USA
- Tulane Brain Institute, Tulane University, 200 Flower Hall, LA 70118 New Orleans, USA
- Clinical Neuroscience Research Center, 131 S. Robertson, Suite 1300, New Orleans, LA 70112 USA
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8
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Angom RS, Kulkarni T, Wang E, Kumar Dutta S, Bhattacharya S, Das P, Mukhopadhyay D. Vascular Endothelial Growth Factor Receptor-1 Modulates Hypoxia-Mediated Endothelial Senescence and Cellular Membrane Stiffness via YAP-1 Pathways. Front Cell Dev Biol 2022; 10:903047. [PMID: 35846360 PMCID: PMC9283904 DOI: 10.3389/fcell.2022.903047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Accepted: 06/13/2022] [Indexed: 11/23/2022] Open
Abstract
Hypoxia-induced endothelial cell (EC) dysfunction has been implicated as potential initiators of different pathogenesis, including Alzheimer’s disease and vascular dementia. However, in-depth structural, mechanical, and molecular mechanisms leading to EC dysfunction and pathology need to be revealed. Here, we show that ECs exposed to hypoxic conditions readily enter a senescence phenotype. As expected, hypoxia upregulated the expression of vascular endothelial growth factor (VEGFs) and its receptors (VEGFRs) in the ECs. Interestingly, Knockdown of VEGFR-1 expression prior to hypoxia exposure prevented EC senescence, suggesting an important role of VEGFR-1 expression in the induction of EC senescence. Using atomic force microscopy, we showed that senescent ECs had a flattened cell morphology, decreased membrane ruffling, and increased membrane stiffness, demonstrating unique morphological and nanomechanical signatures. Furthermore, we show that hypoxia inhibited the Hippo pathway Yes-associated protein (YAP-1) expression and knockdown of YAP-1 induced senescence in the ECs, supporting a key role of YAP-1 expression in the induction of EC senescence. And importantly, VEGFR-1 Knockdown in the ECs modulated YAP-1 expression, suggesting a novel VEGFR-1-YAP-1 axis in the induction of hypoxia-mediated EC senescence. In conclusion, VEGFR-1 is overexpressed in ECs undergoing hypoxia-mediated senescence, and the knockdown of VEGFR-1 restores cellular structural and nanomechanical integrity by recovering YAP-1 expression.
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Affiliation(s)
| | - Tanmay Kulkarni
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
| | - Enfeng Wang
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
| | - Shamit Kumar Dutta
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
| | - Santanu Bhattacharya
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Jacksonville, FL, United States
| | - Pritam Das
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Jacksonville, FL, United States
- Department of Physiology and Biomedical Engineering, Mayo Clinic College of Medicine and Science, Jacksonville, FL, United States
- *Correspondence: Debabrata Mukhopadhyay,
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9
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Liu RM. Aging, Cellular Senescence, and Alzheimer's Disease. Int J Mol Sci 2022; 23:1989. [PMID: 35216123 PMCID: PMC8874507 DOI: 10.3390/ijms23041989] [Citation(s) in RCA: 69] [Impact Index Per Article: 34.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 02/07/2022] [Accepted: 02/08/2022] [Indexed: 01/10/2023] Open
Abstract
Aging is the greatest risk factor for late-onset Alzheimer's disease (LOAD), which accounts for >95% of Alzheimer's disease (AD) cases. The mechanism underlying the aging-related susceptibility to LOAD is unknown. Cellular senescence, a state of permanent cell growth arrest, is believed to contribute importantly to aging and aging-related diseases, including AD. Senescent astrocytes, microglia, endothelial cells, and neurons have been detected in the brain of AD patients and AD animal models. Removing senescent cells genetically or pharmacologically ameliorates β-amyloid (Aβ) peptide and tau-protein-induced neuropathologies, and improves memory in AD model mice, suggesting a pivotal role of cellular senescence in AD pathophysiology. Nonetheless, although accumulated evidence supports the role of cellular senescence in aging and AD, the mechanisms that promote cell senescence and how senescent cells contribute to AD neuropathophysiology remain largely unknown. This review summarizes recent advances in this field. We believe that the removal of senescent cells represents a promising approach toward the effective treatment of aging-related diseases, such as AD.
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Affiliation(s)
- Rui-Ming Liu
- Division of Pulmonary, Allergy, and Critical Care, Department of Medicine, School of Medicine, University of Alabama at Birmingham, Birmingham, AL 35294-0006, USA
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10
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Kulkarni T, Mukhopadhyay D, Bhattacharya S. Dynamic alteration of poroelastic attributes as determinant membrane nanorheology for endocytosis of organ specific targeted gold nanoparticles. J Nanobiotechnology 2022; 20:74. [PMID: 35135558 PMCID: PMC8822666 DOI: 10.1186/s12951-022-01276-1] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2021] [Accepted: 01/20/2022] [Indexed: 01/21/2023] Open
Abstract
Background Efficacy of targeted drug delivery using nanoparticles relies on several factors including the uptake mechanisms such as phagocytosis, macropinocytosis, micropinocytosis and receptor mediated endocytosis. These mechanisms have been studied with respect to the alteration in signaling mechanisms, cellular morphology, and linear nanomechanical properties (NMPs). Commonly employed classical contact mechanics models to address cellular NMPs fail to address mesh like structure consisting of bilayer lipids and proteins of cell membrane. To overcome this technical challenge, we employed poroelastic model which accounts for the biphasic nature of cells including their porous behavior exhibiting both solid like (fluid storage) and liquid like (fluid dissipate) behavior. Results In this study, we employed atomic force microscopy to monitor the influence of surface engineering of gold nanoparticles (GNPs) to the alteration of nonlinear NMPs such as drained Poisson’s ratio, effective shear stress, diffusion constant and pore dimensions of cell membranes during their uptake. Herein, we used pancreatic cancer (PDAC) cell lines including Panc1, AsPC-1 and endothelial cell (HUVECs) to understand the receptor-dependent and -independent endocytosis of two different GNPs derived using plectin-1 targeting peptide (PTP-GNP) and corresponding scrambled peptide (sPEP-GNP). Compared to untreated cells, in case of receptor dependent endocytosis of PTP-GNPs diffusion coefficient altered ~ 1264-fold and ~ 1530-fold and pore size altered ~ 320-fold and ~ 260-fold in Panc1 and AsPC-1 cells, respectively. Whereas for receptor independent mechanisms, we observed modest alteration in diffusion coefficient and pore size, in these cells compared to untreated cells. Effective shear stress corresponding to 7.38 ± 0.15 kPa and 20.49 ± 0.39 kPa in PTP-GNP treatment in Panc1 and AsPC-1, respectively was significantly more than that for sPEP-GNP. These results demonstrate that with temporal recruitment of plectin-1 during receptor mediated endocytosis affects the poroelastic attributes of the membrane. Conclusion This study confirms that nonlinear NMPs of cell membrane are directly associated with the uptake mechanism of nanoparticles and can provide promising insights of the nature of endocytosis mechanism involved for organ specific drug delivery using nanoparticles. Hence, nanomechanical analysis of cell membrane using this noninvasive, label-free and live-cell analytical tool can therefore be instrumental to evaluate therapeutic benefit of nanoformulations. Graphical Abstract ![]()
Supplementary Information The online version contains supplementary material available at 10.1186/s12951-022-01276-1.
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Affiliation(s)
- Tanmay Kulkarni
- Department of Biochemistry and Molecular Biology, Mayo College of Medicine and Science, Griffin 413, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology, Mayo College of Medicine and Science, Griffin 413, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA.,Department of Physiology and Biomedical Engineering, Mayo College of Medicine and Science, Jacksonville, FL, USA
| | - Santanu Bhattacharya
- Department of Biochemistry and Molecular Biology, Mayo College of Medicine and Science, Griffin 413, Mayo Clinic Florida, 4500 San Pablo Road S, Jacksonville, FL, 32224, USA. .,Department of Physiology and Biomedical Engineering, Mayo College of Medicine and Science, Jacksonville, FL, USA.
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Kulkarni T, Mukhopadhyay D, Bhattacharya S. Nanomechanical Insight of Pancreatic Cancer Cell Membrane during Receptor Mediated Endocytosis of Targeted Gold Nanoparticles. ACS APPLIED BIO MATERIALS 2021; 4:984-994. [PMID: 34913031 DOI: 10.1021/acsabm.0c01443] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
Nanoscale alterations in the cellular membrane transpire during cellular interactions with the extracellular environment through the endocytosis processes. Although the biological innuendos as well as alterations in cellular morphology during endocytosis are well-known, nanomechanical amendments in the cellular membrane are poorly understood. In this manuscript, atomic force microscope is employed to demonstrate the nanomechanical alterations in membrane dynamics during receptor mediated endocytosis of gold nanoparticles conjugated with either plectin-1 targeted peptide (PTP-GNP) or scrambled peptide (sPEP-GNP). Plectin-1 is aberrantly overexpressed at cell membrane of pancreatic cancer cells and is known to provide and maintain cellular mechanical integrity. During receptor mediated endocytosis of nanoparticles, we demonstrate temporal nanomechanical changes of cell membrane in both immortal pancreatic cancer Panc1 cells and patient derived primary pancreatic cancer cell, 4911. We further confirm the alterations of plectin-1 expression in Panc1 cell membrane during the receptor mediated endocytosis using classical streptavidin-biotin reaction and establish its association with nanomechanical alteration in membrane dynamics. Withdrawal of PTP-GNPs from the cell culture restores the plectin-1 expression at the membrane and reverses the mechanical properties of Panc1. We also show a distinctly opposite trend in nanomechanical behavior in cancer and endothelial cells when treated with sPEP-GNP and PTP-GNP, respectively, signifying receptor independent endocytosis process. This study illustrates the nanomechanical perspective of cell membrane in receptor mediated endocytosis of nanoparticles designed for organ specific drug delivery.
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Affiliation(s)
- Tanmay Kulkarni
- Department of Biochemistry and Molecular Biology, Mayo College of Medicine and Science, Jacksonville, Florida 32224, United States
| | - Debabrata Mukhopadhyay
- Department of Biochemistry and Molecular Biology and Department of Physiology and Biomedical Engineering, Mayo College of Medicine and Science, Jacksonville, Florida 32224, United States
| | - Santanu Bhattacharya
- Department of Biochemistry and Molecular Biology and Department of Physiology and Biomedical Engineering, Mayo College of Medicine and Science, Jacksonville, Florida 32224, United States
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