1
|
Shou Y, Teo XY, Wu KZ, Bai B, Kumar ARK, Low J, Le Z, Tay A. Dynamic Stimulations with Bioengineered Extracellular Matrix-Mimicking Hydrogels for Mechano Cell Reprogramming and Therapy. ADVANCED SCIENCE (WEINHEIM, BADEN-WURTTEMBERG, GERMANY) 2023:e2300670. [PMID: 37119518 PMCID: PMC10375194 DOI: 10.1002/advs.202300670] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 04/10/2023] [Indexed: 06/19/2023]
Abstract
Cells interact with their surrounding environment through a combination of static and dynamic mechanical signals that vary over stimulus types, intensity, space, and time. Compared to static mechanical signals such as stiffness, porosity, and topography, the current understanding on the effects of dynamic mechanical stimulations on cells remains limited, attributing to a lack of access to devices, the complexity of experimental set-up, and data interpretation. Yet, in the pursuit of emerging translational applications (e.g., cell manufacturing for clinical treatment), it is crucial to understand how cells respond to a variety of dynamic forces that are omnipresent in vivo so that they can be exploited to enhance manufacturing and therapeutic outcomes. With a rising appreciation of the extracellular matrix (ECM) as a key regulator of biofunctions, researchers have bioengineered a suite of ECM-mimicking hydrogels, which can be fine-tuned with spatiotemporal mechanical cues to model complex static and dynamic mechanical profiles. This review first discusses how mechanical stimuli may impact different cellular components and the various mechanobiology pathways involved. Then, how hydrogels can be designed to incorporate static and dynamic mechanical parameters to influence cell behaviors are described. The Scopus database is also used to analyze the relative strength in evidence, ranging from strong to weak, based on number of published literatures, associated citations, and treatment significance. Additionally, the impacts of static and dynamic mechanical stimulations on clinically relevant cell types including mesenchymal stem cells, fibroblasts, and immune cells, are evaluated. The aim is to draw attention to the paucity of studies on the effects of dynamic mechanical stimuli on cells, as well as to highlight the potential of using a cocktail of various types and intensities of mechanical stimulations to influence cell fates (similar to the concept of biochemical cocktail to direct cell fate). It is envisioned that this progress report will inspire more exciting translational development of mechanoresponsive hydrogels for biomedical applications.
Collapse
Affiliation(s)
- Yufeng Shou
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Xin Yong Teo
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Kenny Zhuoran Wu
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Bingyu Bai
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Arun R K Kumar
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
- Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117597, Singapore
| | - Jessalyn Low
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
| | - Zhicheng Le
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
| | - Andy Tay
- Department of Biomedical Engineering, National University of Singapore, Singapore, 117583, Singapore
- Institute for Health Innovation and Technology, National University of Singapore, Singapore, 117599, Singapore
- NUS Tissue Engineering Program, National University of Singapore, Singapore, 117510, Singapore
| |
Collapse
|
2
|
Strehle D, Mollenkopf P, Glaser M, Golde T, Schuldt C, Käs JA, Schnauß J. Single Actin Bundle Rheology. Molecules 2017; 22:E1804. [PMID: 29064446 PMCID: PMC5860748 DOI: 10.3390/molecules22101804] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Revised: 10/17/2017] [Accepted: 10/19/2017] [Indexed: 11/17/2022] Open
Abstract
Bundled actin structures play an essential role in the mechanical response of the actin cytoskeleton in eukaryotic cells. Although responsible for crucial cellular processes, they are rarely investigated in comparison to single filaments and isotropic networks. Presenting a highly anisotropic structure, the determination of the mechanical properties of individual bundles was previously achieved through passive approaches observing bending deformations induced by thermal fluctuations. We present a new method to determine the bending stiffness of individual bundles, by measuring the decay of an actively induced oscillation. This approach allows us to systematically test anisotropic, bundled structures. Our experiments revealed that thin, depletion force-induced bundles behave as semiflexible polymers and obey the theoretical predictions determined by the wormlike chain model. Thickening an individual bundle by merging it with other bundles enabled us to study effects that are solely based on the number of involved filaments. These thicker bundles showed a frequency-dependent bending stiffness, a behavior that is inconsistent with the predictions of the wormlike chain model. We attribute this effect to internal processes and give a possible explanation with regard to the wormlike bundle theory.
Collapse
Affiliation(s)
- Dan Strehle
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
| | - Paul Mollenkopf
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), DNA Nanodevices Group, Perlickstraße 1, 04103 Leipzig, Germany.
| | - Martin Glaser
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), DNA Nanodevices Group, Perlickstraße 1, 04103 Leipzig, Germany.
| | - Tom Golde
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
| | - Carsten Schuldt
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), DNA Nanodevices Group, Perlickstraße 1, 04103 Leipzig, Germany.
| | - Josef A Käs
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
| | - Jörg Schnauß
- Faculty of Physics and Earth Sciences, Peter Debye Institute, Leipzig University, Linnéstr. 5, 04103 Leipzig, Germany.
- Fraunhofer Institute for Cell Therapy and Immunology (IZI), DNA Nanodevices Group, Perlickstraße 1, 04103 Leipzig, Germany.
| |
Collapse
|
3
|
Integration of cell biology, pharmacological modeling and statistical analysis: part I: cell biology and PK/PD in the Oncology paradigm. Crit Rev Oncol Hematol 2011; 83:153-69. [PMID: 22118941 DOI: 10.1016/j.critrevonc.2011.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2011] [Revised: 10/01/2011] [Accepted: 10/12/2011] [Indexed: 11/23/2022] Open
Abstract
The motivation of this two-part review article is to provide a comprehensive picture of cancer, cancer drugs and the detection and treatment of cancer. In order to do so, this article integrates the cell biology and biophysics of cancer as well as the modeling of preclinical Oncology drug data and statistical analysis of Oncology clinical trials data. It also discusses novel cancer diagnostic tools and standard and potential treatment options.
Collapse
|
4
|
Abstract
The situations in which biomaterials are currently used are vastly different to those of just a decade ago. Although implantable medical devices are still immensely important, medical technologies now encompass a range of drug and gene delivery systems, tissue engineering and cell therapies, organ printing and cell patterning, nanotechnology based imaging and diagnostic systems and microelectronic devices. These technologies still encompass metals, ceramics and synthetic polymers, but also biopolymers, self assembled systems, nanoparticles, carbon nanotubes and quantum dots. These changes imply that our original concepts of biomaterials and our expectations of their performance also have to change. This Leading Opinion Paper addresses these issues. It concludes that many substances which hitherto we may not have thought of as biomaterials should now be considered as such so that, alongside the traditional structural biomaterials, we have substances that have been engineered to perform functions within health care where their performance is directly controlled by interactions with tissues and tissue components. These include engineered tissues, cells, organs and even viruses. This essay develops the arguments for a radically different definition of a biomaterial.
Collapse
Affiliation(s)
- David F Williams
- Wake Forest Institute of Regenerative Medicine, Winston-Salem, NC, USA.
| |
Collapse
|