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Liu Y, Wang Y, Cheng X, Zheng Y, Lyu M, Di P, Lin Y. MiR-181d-5p regulates implant surface roughness-induced osteogenic differentiation of bone marrow stem cells. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 121:111801. [PMID: 33579448 DOI: 10.1016/j.msec.2020.111801] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 11/25/2020] [Accepted: 12/07/2020] [Indexed: 12/12/2022]
Abstract
Constructing moderate surface roughness is a widely used, non-toxic, cost-effective, and outcome-predictable approach to accelerate implant osteointegration in clinical settings. MicroRNAs (miRNAs) play vital regulatory roles in the osteogenic differentiation of bone marrow stem cells (BMSCs). However, their specific contribution to the influence of surface roughness on osteoblastic behavior remains unknown. Therefore, applying the smooth titanium surface as a control, a typical titanium surface with moderate roughness was prepared here to reveal the mechanism through which surface roughness regulates cell osteogenic behavior by altering miRNA expression. First, the morphology and roughness of two surfaces were characterized, and the enhanced osteogenic differentiation of BMSCs on rough surfaces was verified. Then, twenty-nine differentially expressed miRNAs in BMSCs cultured on different surfaces were selected via miRNA chip and corresponding functional prediction. After verifying the expression of these miRNAs using quantitative real-time polymerase chain reaction, four were considered eligible candidates. Among these, only miR-181d-5p significantly affected RUNX2 gene expression based on overexpression and knockdown experiments. From the osteogenesis-related gene and protein expression, as well as alkaline phosphatase and alizarin red experiments, we further confirmed that the downregulation of miR-181d-5p promoted osteogenic differentiation of BMSCs, and vice versa. In addition, rescue assays showed that the knockdown of miR-181d-5p improved the inferior osteogenesis observed on smooth surfaces, whereas the overexpression of miR-181d-5p suppressed the superior osteogenesis observed on rough surfaces. These results indicate that the moderate surface roughness of the implant stimulates the osteogenic differentiation of BMSCs by remarkably downregulating miR-181d-5p. These findings provide helpful information and a theoretical basis for the development of advanced implant materials for fast osteointegration.
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Affiliation(s)
- Yanping Liu
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Yixiang Wang
- Department of Central Laboratory, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Xian Cheng
- Department of Dentistry-Biomaterials, Radboud University Medical Center, Philips van Leydenlaan 25, 6525 EX Nijmegen, the Netherlands
| | - Yan Zheng
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Mingyue Lyu
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing 100081, PR China
| | - Ping Di
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing 100081, PR China.
| | - Ye Lin
- Department of Oral Implantology, Peking University School and Hospital of Stomatology, Beijing 100081, PR China.
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Wang T, Nanda SS, Papaefthymiou GC, Yi DK. Mechanophysical Cues in Extracellular Matrix Regulation of Cell Behavior. Chembiochem 2020; 21:1254-1264. [DOI: 10.1002/cbic.201900686] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Indexed: 12/22/2022]
Affiliation(s)
- Tuntun Wang
- Department of ChemistryMyongji University Yongin 449-728 Republic of Korea
| | | | | | - Dong Kee Yi
- Department of ChemistryMyongji University Yongin 449-728 Republic of Korea
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3
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Hebels DG, Carlier A, Coonen ML, Theunissen DH, de Boer J. cBiT: A transcriptomics database for innovative biomaterial engineering. Biomaterials 2017; 149:88-97. [DOI: 10.1016/j.biomaterials.2017.10.008] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2017] [Revised: 09/20/2017] [Accepted: 10/02/2017] [Indexed: 01/07/2023]
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Sant GR, Knopf KB, Albala DM. Live-single-cell phenotypic cancer biomarkers-future role in precision oncology? NPJ Precis Oncol 2017; 1:21. [PMID: 29872705 PMCID: PMC5871838 DOI: 10.1038/s41698-017-0025-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 04/21/2017] [Accepted: 05/05/2017] [Indexed: 01/08/2023] Open
Abstract
The promise of precision and personalized medicine is rooted in accurate, highly sensitive, and specific disease biomarkers. This is particularly true for cancer-a disease characterized by marked tumor heterogeneity and diverse molecular signatures. Although thousands of biomarkers have been described, only a very small number have been successfully translated into clinical use. Undoubtedly, there is need for rapid, quantitative, and more cost effective biomarkers for tumor diagnosis and prognosis, to allow for better risk stratification and aid clinicians in making personalized treatment decisions. This is particularly true for cancers where specific biomarkers are either not available (e.g., renal cell carcinoma) or where current biomarkers tend to classify individuals into broad risk categories unable to accurately assess individual tumor aggressiveness and adverse pathology potential (e.g., prostate cancer), thereby leading to problems of over-diagnosis and over-treatment of indolent cancer and under-treatment of aggressive cancer. This perspective highlights an emerging class of cancer biomarkers-live-single-cell phenotypic biomarkers, as compared to genomic biomarkers, and their potential application for cancer diagnosis, risk-stratification, and prognosis.
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Affiliation(s)
- Grannum R Sant
- Department of Urology, Tufts University School of Medicine, 82 Dennison Street, Gloucester, MA 01930 UK
| | - Kevin B Knopf
- Cancer Commons, 35050 El Camino Real, Los Altos, CA 94022 USA
| | - David M Albala
- 3Department of Urology, Crouse Hospital, Syracuse, NY USA
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5
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Hu X, Margadant FM, Yao M, Sheetz MP. Molecular stretching modulates mechanosensing pathways. Protein Sci 2017; 26:1337-1351. [PMID: 28474792 DOI: 10.1002/pro.3188] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 04/26/2017] [Accepted: 04/27/2017] [Indexed: 01/21/2023]
Abstract
For individual cells in tissues to create the diverse forms of biological organisms, it is necessary that they must reliably sense and generate the correct forces over the correct distances and directions. There is considerable evidence that the mechanical aspects of the cellular microenvironment provide critical physical parameters to be sensed. How proteins sense forces and cellular geometry to create the correct morphology is not understood in detail but protein unfolding appears to be a major component in force and displacement sensing. Thus, the crystallographic structure of a protein domain provides only a starting point to then analyze what will be the effects of physiological forces through domain unfolding or catch-bond formation. In this review, we will discuss the recent studies of cytoskeletal and adhesion proteins that describe protein domain dynamics. Forces applied to proteins can activate or inhibit enzymes, increase or decrease protein-protein interactions, activate or inhibit protein substrates, induce catch bonds and regulate interactions with membranes or nucleic acids. Further, the dynamics of stretch-relaxation can average forces or movements to reliably regulate morphogenic movements. In the few cases where single molecule mechanics are studied under physiological conditions such as titin and talin, there are rapid cycles of stretch-relaxation that produce mechanosensing signals. Fortunately, the development of new single molecule and super-resolution imaging methods enable the analysis of single molecule mechanics in physiologically relevant conditions. Thus, we feel that stereotypical changes in cell and tissue shape involve mechanosensing that can be analyzed at the nanometer level to determine the molecular mechanisms involved.
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Affiliation(s)
- Xian Hu
- Mechanobiology Institute, National University of Singapore, Singapore, 117411.,Department of Biosciences, University of Oslo, Oslo, 0316, Norway
| | | | - Mingxi Yao
- Mechanobiology Institute, National University of Singapore, Singapore, 117411
| | - Michael Patrick Sheetz
- Mechanobiology Institute, National University of Singapore, Singapore, 117411.,Department of Biological Sciences, University of Columbia, New York, 10027
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Sutton A, Shirman T, Timonen JVI, England GT, Kim P, Kolle M, Ferrante T, Zarzar LD, Strong E, Aizenberg J. Photothermally triggered actuation of hybrid materials as a new platform for in vitro cell manipulation. Nat Commun 2017; 8:14700. [PMID: 28287116 PMCID: PMC5355809 DOI: 10.1038/ncomms14700] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Accepted: 01/23/2017] [Indexed: 12/31/2022] Open
Abstract
Mechanical forces in the cell's natural environment have a crucial impact on growth, differentiation and behaviour. Few areas of biology can be understood without taking into account how both individual cells and cell networks sense and transduce physical stresses. However, the field is currently held back by the limitations of the available methods to apply physiologically relevant stress profiles on cells, particularly with sub-cellular resolution, in controlled in vitro experiments. Here we report a new type of active cell culture material that allows highly localized, directional and reversible deformation of the cell growth substrate, with control at scales ranging from the entire surface to the subcellular, and response times on the order of seconds. These capabilities are not matched by any other method, and this versatile material has the potential to bridge the performance gap between the existing single cell micro-manipulation and 2D cell sheet mechanical stimulation techniques.
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Affiliation(s)
- Amy Sutton
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Tanya Shirman
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Jaakko V. I. Timonen
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Applied Physics, Aalto University, Espoo 02150, Finland
| | - Grant T England
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Philseok Kim
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Mathias Kolle
- Department of Mechanical Engineering Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA
| | - Thomas Ferrante
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Lauren D Zarzar
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- Department of Materials Science and Engineering and Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, USA
| | - Elizabeth Strong
- Harvard College, Harvard University, Cambridge, Massachusetts 02138, USA
| | - Joanna Aizenberg
- Department of Chemistry and Chemical Biology, Harvard University, Cambridge, Massachusetts 02138, USA
- John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, Massachusetts 02138, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Cambridge, Massachusetts 02138, USA
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Ribeiro ES, Greco LF, Bisinotto RS, Lima FS, Thatcher WW, Santos JE. Biology of Preimplantation Conceptus at the Onset of Elongation in Dairy Cows1. Biol Reprod 2016; 94:97. [DOI: 10.1095/biolreprod.115.134908] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2015] [Accepted: 02/25/2016] [Indexed: 01/11/2023] Open
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9
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Fusco S, Memmolo P, Miccio L, Merola F, Mugnano M, Paciello A, Ferraro P, Netti PA. Nanomechanics of a fibroblast suspended using point-like anchors reveal cytoskeleton formation. RSC Adv 2016. [DOI: 10.1039/c5ra26305k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Cells are suspended and stretched using two microbeads. The formation of inner cytoskeleton structures is reported using displacement, QPM phase change and fluorescent micrographs.
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Affiliation(s)
- Sabato Fusco
- Istituto Italiano di Tecnologia
- IIT@CRIB
- Napoli 80125
- Italy
| | - Pasquale Memmolo
- Istituto Italiano di Tecnologia
- IIT@CRIB
- Napoli 80125
- Italy
- CNR – Istituto di Scienze Applicate e Sistemi Intelligenti
| | - Lisa Miccio
- CNR – Istituto di Scienze Applicate e Sistemi Intelligenti
- Pozzuoli
- Italy
| | - Francesco Merola
- CNR – Istituto di Scienze Applicate e Sistemi Intelligenti
- Pozzuoli
- Italy
| | - Martina Mugnano
- CNR – Istituto di Scienze Applicate e Sistemi Intelligenti
- Pozzuoli
- Italy
| | | | - Pietro Ferraro
- CNR – Istituto di Scienze Applicate e Sistemi Intelligenti
- Pozzuoli
- Italy
| | - Paolo A. Netti
- Istituto Italiano di Tecnologia
- IIT@CRIB
- Napoli 80125
- Italy
- DCMIPE
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Abstract
The ability of cells to sense and respond to physical forces has been recognized for decades, but researchers are only beginning to appreciate the fundamental importance of mechanical signals in biology. At the larger scale, there has been increased interest in the collective organization of cells and their ability to produce complex, "emergent" behaviors. Often, these complex behaviors result in tissue-level control mechanisms that manifest as biological oscillators, such as observed in fireflies, heartbeats, and circadian rhythms. In many cases, these complex, collective behaviors are controlled--at least in part--by physical forces imposed on the tissue or created by the cells. Here, we use mathematical simulations to show that two complementary mechanobiological oscillators are sufficient to control fluid transport in the lymphatic system: Ca(2+)-mediated contractions can be triggered by vessel stretch, whereas nitric oxide produced in response to the resulting fluid shear stress causes the lymphatic vessel to relax locally. Our model predicts that the Ca(2+) and NO levels alternate spatiotemporally, establishing complementary feedback loops, and that the resulting phasic contractions drive lymph flow. We show that this mechanism is self-regulating and robust over a range of fluid pressure environments, allowing the lymphatic vessels to provide pumping when needed but remain open when flow can be driven by tissue pressure or gravity. Our simulations accurately reproduce the responses to pressure challenges and signaling pathway manipulations observed experimentally, providing an integrated conceptual framework for lymphatic function.
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Podlipec R, Štrancar J. Cell-scaffold adhesion dynamics measured in first seconds predicts cell growth on days scale – optical tweezers study. ACS APPLIED MATERIALS & INTERFACES 2015; 7:6782-6791. [PMID: 25764169 DOI: 10.1021/acsami.5b00235] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Understanding the cell-biomaterial interface from the very first contact is of crucial importance for their successful implementation and function in damaged tissues. However, the lack of bio- and mechano-analytical methods to investigate and probe the initial processes on the interface, especially in 3D, raises the need for applying new experimental techniques. In our study, optical tweezers combined with confocal fluorescence microscopy were optimized to investigate the initial cell-scaffold contact and to investigate its correlation with the material-dependent cell growth. By the optical tweezers-induced cell manipulation accompanied by force detection up to 100 pN and position detection by fluorescence microscopy, accurate adhesion dynamics and strength analysis was implemented, where several attachment sites were formed on the interface in the first few seconds. More importantly, we have shown that dynamics of cell adhesion on scaffold surfaces correlates with cell growth on the days scale, which indicates that the first seconds of the contact could markedly direct further cell response. Such a contact dynamics analysis on 3D scaffold surfaces, applied for the first time, can thus serve to predict scaffold biocompatibility.
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Affiliation(s)
- Rok Podlipec
- Centre of Excellence NAMASTE, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
- Laboratory of Biophysics, Condensed Matter Physics Department, "Jožef Stefan" Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
| | - Janez Štrancar
- Centre of Excellence NAMASTE, Jamova cesta 39, SI-1000 Ljubljana, Slovenia
- Laboratory of Biophysics, Condensed Matter Physics Department, "Jožef Stefan" Institute, Jamova cesta 39, Ljubljana SI-1000, Slovenia
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