1
|
Stottlemire BJ, Chakravarti AR, Whitlow JW, Berkland CJ, He M. Remote-Controlled 3D Porous Magnetic Interface toward High-Throughput Dynamic 3D Cell Culture. ACS Biomater Sci Eng 2021; 7:4535-4544. [PMID: 34468120 DOI: 10.1021/acsbiomaterials.1c00459] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mechanical stimuli have been shown to play a large role in cellular behavior, including cellular growth, differentiation, morphology, homeostasis, and disease. Therefore, developing bioreactor systems that can create complex mechanical environments for both tissue engineering and disease modeling drug screening is appealing. However, many of existing systems are restricted because of their bulky size with external force generators, destructive microenvironment control, and low throughput. These shortcomings have preceded to the utilization of magnetic stimuli responsive materials, given their untethered, fast, and tunable actuation potential at both the microscale and macroscale level, for seamless integration into cell culture wells and microfluidic systems. Nevertheless, magnetic soft materials for cell culture have been limited due to the inability to develop well-defined 3D structures for more complex and physiological relevant mechanical actuation. Herein, we introduce a facile fabrication process to develop magnetic-PDMS (polydimethylsiloxane) porous composite designs with both well-defined and controllable microlevel and macrolevel features to dynamically manipulate 3D cell-laden gel at the scale. The intrinsic stiffness of the magnetic-PDMS porous composites is also modulated to control the deformation potential to mimic physiological relevant strain levels, with 2.89-11% observed in magnetic actuation studies. High cell viability was achieved with the culturing of both human adipose stem cells (hADMSCs) and human umbilical cord mesenchymal stem cells (hUCMSCs) in 3D cell-laden gel interfaced with the magnetic-PDMS porous composite. Also, the highly interconnected porous network of the magnetic-PDMS composites facilitated free diffusion throughout the porous structure showcasing the potential of a multisurface contact 3D porous magnetic structure in both reservoir and 96-well plate insert designs for more complex dynamic mechanical actuation. In conclusion, these studies provide a means for establishing a biocompatible, tunable magnetic-PDMS porous composite with fast and programmable dynamic strain potential making it a suitable platform for high-throughput, dynamic 3D cell culture.
Collapse
Affiliation(s)
- Bryce J Stottlemire
- Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States
| | - Aparna R Chakravarti
- Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States
| | - Jonathan W Whitlow
- Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States
| | - Cory J Berkland
- Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States.,Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66045, United States
| | - Mei He
- Department of Chemical and Petroleum Engineering, Bioengineering Program, University of Kansas, Lawrence, Kansas 66045, United States.,Department of Pharmaceutics, University of Florida, Gainesville, Florida 32608, United States
| |
Collapse
|
2
|
Pacelli S, Chakravarti AR, Modaresi S, Subham S, Burkey K, Kurlbaum C, Fang M, Neal CA, Mellott AJ, Chakraborty A, Paul A. Investigation of human adipose-derived stem-cell behavior using a cell-instructive polydopamine-coated gelatin-alginate hydrogel. J Biomed Mater Res A 2021; 109:2597-2610. [PMID: 34189837 DOI: 10.1002/jbm.a.37253] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2021] [Revised: 06/09/2021] [Accepted: 06/16/2021] [Indexed: 01/05/2023]
Abstract
Hydrogels can be fabricated and designed to exert direct control over stem cells' adhesion and differentiation. In this study, we have investigated the use of polydopamine (pDA)-treatment as a binding platform for bioactive compounds to create a versatile gelatin-alginate (Gel-Alg) hydrogel for tissue engineering applications. Precisely, pDA was used to modify the surface properties of the hydrogel and better control the adhesion and osteogenic differentiation of human adipose-derived stem cells (hASCs). pDA enabled the adsorption of different types of bioactive molecules, including a model osteoinductive drug (dexamethasone) as well as a model pro-angiogenic peptide (QK). The pDA treatment efficiently retained the drug and the peptide compared to the untreated hydrogel and proved to be effective in controlling the morphology, cell area, and osteogenic differentiation of hASCs. Overall, the findings of this study confirm the efficacy of pDA treatment as a valuable strategy to modulate the biological properties of biocompatible Gel-Alg hydrogels and further extend their value in regenerative medicine.
Collapse
Affiliation(s)
- Settimio Pacelli
- Department of Biomedical Engineering, The University of Texas at San Antonio, San Antonio, Texas, USA
| | - Aparna R Chakravarti
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Saman Modaresi
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Siddharth Subham
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Kyley Burkey
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Cecilia Kurlbaum
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Madeline Fang
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, Kansas, USA
| | - Christopher A Neal
- Department of Plastic and Burn Surgery, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Adam J Mellott
- Department of Plastic and Burn Surgery, University of Kansas Medical Center, Kansas City, Kansas, USA
| | - Aishik Chakraborty
- Department of Chemical and Biochemical Engineering, Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
| | - Arghya Paul
- Department of Chemical and Biochemical Engineering, Department of Chemistry, The University of Western Ontario, London, Ontario, Canada
| |
Collapse
|
3
|
Griffin JD, Huayamares SG, Walston TR, Song JY, Shao M, Sedlacek AR, Diaz DL, Chakravarti AR, Berkland CJ. Brain Homogenate Decoys for Antigen-Specific Cell Amplification. ACS Appl Bio Mater 2021; 4:387-391. [DOI: 10.1021/acsabm.0c01048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- J. Daniel Griffin
- Bioengineering Graduate Program, University of Kansas, Lawrence, Kansas 66045, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Sebastian G. Huayamares
- Bioengineering Graduate Program, University of Kansas, Lawrence, Kansas 66045, United States
| | - Towne R. Walston
- School of Medicine, University of Kansas Medical Center, Kansas City, Kansas 66160, United States
| | - Jimmy Y. Song
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
| | - Michael Shao
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Alexander R. Sedlacek
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Deanna L. Diaz
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Aparna R. Chakravarti
- Bioengineering Graduate Program, University of Kansas, Lawrence, Kansas 66045, United States
| | - Cory J. Berkland
- Bioengineering Graduate Program, University of Kansas, Lawrence, Kansas 66045, United States
- Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, Kansas 66047, United States
- Department of Chemical and Petroleum Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| |
Collapse
|
4
|
Chakravarti AR, Pacelli S, Paul A. Investigation of human adipose stem cell-derived nanoparticles as a biomimetic carrier for intracellular drug delivery. Nanoscale 2020; 12:24273-24284. [PMID: 33295935 DOI: 10.1039/d0nr06571d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Prevailing drug delivery strategies rely on the use of synthetic nanocarriers like metal nanoparticles and polymeric liposomes to control the release of therapeutics in a safe and efficacious manner. Despite their high efficiency in encapsulating drugs, these systems exhibit low to moderate biocompatibility, low cellular uptake, and sub-optimal targeting capabilities. Conversely, cell-derived nanoparticles (CDNs) have emerged as a promising alternative to these artificial drug delivery carriers for achieving safer clinical outcomes. In this study, we have generated CDNs from human adipose-derived stem cells (hASCs) using a high-yield fabrication strategy. Briefly, hASCs were subjected to a cell-shearing approach that entails passing the cells through an array of filters, along with serial centrifugations to eliminate intracellular contents. Ultimately, the fragmented parent cell membrane self-assembles to form the CDNs. This strategy successfully converted 80% of the plasma membrane into the novel nanocarriers with an average hydrodynamic diameter of 100 nm. Stability analysis confirmed that the formulated nanocarriers are stable for over 3 weeks, making them a potent candidate for long-term therapies. To demonstrate their potential in drug delivery, we encapsulated trehalose, a cell-impermeable sugar molecule, into the CDNs via an extrusion loading technique. Drug-loaded CDNs were effectively internalized into human umbilical vein endothelial cells (HUVECs) and hASCs, without inducing any significant cytotoxicity. Overall, the findings of this study establish the potential of hASC-derived CDNs as customizable biomimetic nanocarriers for drug delivery and other translational medicine applications.
Collapse
Affiliation(s)
- Aparna R Chakravarti
- Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS 66045, USA
| | | | | |
Collapse
|
5
|
Abstract
Secretome-based therapies have the potential to become the next generation of viable therapeutic wound repair treatments. However, precise strategies aimed to refine and control the secretome composition are necessary to enhance its therapeutic efficacy and facilitate clinical translation. In this study, we aim to accomplish this by transfecting human adipose-derived stem cells (hASCs) with microRNA-146a, which is a potent regulator of angiogenesis and inflammation. The secretome composition obtained from the transfected hASCs (secretome146a) was characterized and compared to nontransfected hASCs secretome to evaluate changes in angiogenic and anti-inflammatory growth factor, cytokine, and miRNA content. In vitro proliferation, migration, and tubular morphogenesis assays using human umbilical vein endothelial cells (HUVECs) were completed to monitor the proangiogenic efficacy of the secretome146a. Finally, the anti-inflammatory efficacy of the secretome146a was assessed using HUVECs that were activated to an inflammatory state by IL-1β. The resulting HUVEC gene expression and protein activity of key inflammatory mediators were evaluated before and after secretome treatment. Overall, the secretome146a contained a greater array and concentration of therapeutic paracrine molecules, which translated into a superior angiogenic and anti-inflammatory efficacy. Therefore, this represents a promising strategy to produce therapeutic secretome for the promotion of wound repair processes.
Collapse
Affiliation(s)
- Renae Waters
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Siddharth Subham
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Settimio Pacelli
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Saman Modaresi
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | - Aparna R. Chakravarti
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, Kansas 66045, United States
| | | |
Collapse
|
6
|
Pacelli S, Rampetsreiter K, Modaresi S, Subham S, Chakravarti AR, Lohfeld S, Detamore MS, Paul A. Fabrication of a Double-Cross-Linked Interpenetrating Polymeric Network (IPN) Hydrogel Surface Modified with Polydopamine to Modulate the Osteogenic Differentiation of Adipose-Derived Stem Cells. ACS Appl Mater Interfaces 2018; 10:24955-24962. [PMID: 29969894 PMCID: PMC6535093 DOI: 10.1021/acsami.8b05200] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Hydrogel surface properties can be modified to form bioactive interfaces to modulate the osteogenic differentiation of stem cells. In this work, a hydrogel made of gelatin methacrylamide (GelMA) and alginate was designed and tested as a scaffold to control stem-cell osteogenic differentiation. The hydrogel's surface was treated with polydopamine (pDA) to create an adhesive layer for the adsorption of the osteoinductive drug dexamethasone (Dex). The presence of the pDA coating enhanced Dex adsorption and retention over 21 days. This effect resulted in a delay in the osteogenic differentiation of hASCs cultured on the hydrogel treated with a pDA layer.
Collapse
Affiliation(s)
- Settimio Pacelli
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| | - Kyle Rampetsreiter
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| | - Saman Modaresi
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| | - Siddharth Subham
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| | - Aparna R. Chakravarti
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| | - Stefan Lohfeld
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
- Biomechanics Research Centre (BMEC), Mechanical and Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, Galway, H91 TK33 Ireland
| | - Michael S. Detamore
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
- Stephenson School of Biomedical Engineering, University of Oklahoma, Norman, Oklahoma 73019, United States
| | - Arghya Paul
- Department of Chemical and Petroleum Engineering, BioIntel Research Laboratory, University of Kansas, Lawrence, Kansas 66045, United States
| |
Collapse
|
7
|
Waters R, Alam P, Pacelli S, Chakravarti AR, Ahmed RP, Paul A. Stem cell-inspired secretome-rich injectable hydrogel to repair injured cardiac tissue. Acta Biomater 2018; 69:95-106. [PMID: 29281806 DOI: 10.1016/j.actbio.2017.12.025] [Citation(s) in RCA: 74] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2017] [Revised: 11/30/2017] [Accepted: 12/18/2017] [Indexed: 12/23/2022]
Abstract
The objective of this study was to develop an injectable and biocompatible hydrogel that can deliver a cocktail of therapeutic biomolecules (secretome) secreted by human adipose-derived stem cells (hASCs) to the peri-infarct myocardium. Gelatin and Laponite® were combined to formulate a shear-thinning, nanocomposite hydrogel (nSi Gel) as an injectable carrier of secretome (nSi Gel+). The growth factor composition and the pro-angiogenic activity of the secretome were tested in vitro by evaluating the proliferation, migration and tube formation of human umbilical endothelial cells. The therapeutic efficacy of the nSi Gel + system was then investigated in vivo in rats by intramyocardial injection into the peri-infarct region. Subsequently, the inflammatory response, angiogenesis, scar formation, and heart function were assessed. Biocompatibility of the developed nSi Gel was confirmed by quantitative PCR and immunohistochemical tests which showed no significant differences in the level of inflammatory genes, microRNAs, and cell marker expression compared to the untreated control group. In addition, the only group that showed a significant increase in capillary density, reduction in scar area and improved cardiac function was treated with the nSi Gel+. Our in vitro and in vivo findings demonstrate the potential of this new secretome-loaded hydrogel as an alternative strategy to treat myocardial infarction. STATEMENT OF SIGNIFICANCE Stem cell based-therapies represent a possible solution to repair damaged myocardial tissue by promoting cardioprotection, angiogenesis, and reduced fibrosis. However, recent evidence indicates that most of the positive outcomes are likely due to the release of paracrine factors (cytokines, growth factors, and exosomes) from the cells and not because of the local engraftment of stem cells. This cocktail of essential growth factors and paracrine signals is known as secretome can be isolated in vitro, and the biomolecule composition can be controlled by varying stem-cell culture conditions. Here, we propose a straightforward strategy to deliver secretome produced from hASCs by using a nanocomposite injectable hydrogel made of gelatin and Laponite®. The designed secretome-loaded hydrogel represents a promising alternative to traditional stem cell therapy for the treatment of acute myocardial infarction.
Collapse
|
8
|
Pacelli S, Acosta F, Chakravarti AR, Samanta SG, Whitlow J, Modaresi S, Ahmed RPH, Rajasingh J, Paul A. Nanodiamond-based injectable hydrogel for sustained growth factor release: Preparation, characterization and in vitro analysis. Acta Biomater 2017; 58:479-491. [PMID: 28532899 PMCID: PMC5560430 DOI: 10.1016/j.actbio.2017.05.026] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 05/06/2017] [Accepted: 05/10/2017] [Indexed: 12/12/2022]
Abstract
Nanodiamonds (NDs) represent an emerging class of carbon nanomaterials that possess favorable physical and chemical properties to be used as multifunctional carriers for a variety of bioactive molecules. Here we report the synthesis and characterization of a new injectable ND-based nanocomposite hydrogel which facilitates a controlled release of therapeutic molecules for regenerative applications. In particular, we have formulated a thermosensitive hydrogel using gelatin, chitosan and NDs that provides a sustained release of exogenous human vascular endothelial growth factor (VEGF) for wound healing applications. Addition of NDs improved the mechanical properties of the injectable hydrogels without affecting its thermosensitive gelation properties. Biocompatibility of the generated hydrogel was verified by in vitro assessment of apoptotic gene expressions and anti-inflammatory interleukin productions. NDs were complexed with VEGF and the inclusion of this complex in the hydrogel network enabled the sustained release of the angiogenic growth factor. These results suggest for the first time that NDs can be used to formulate a biocompatible, thermosensitive and multifunctional hydrogel platform that can function both as a filling agent to modulate hydrogel properties, as well as a delivery platform for the controlled release of bioactive molecules and growth factors. STATEMENT OF SIGNIFICANCE One of the major drawbacks associated with the use of conventional hydrogels as carriers of growth factors is their inability to control the release kinetics of the loaded molecules. In fact, in most cases, a burst release is inevitable leading to diminished therapeutic effects and unsuccessful therapies. As a potential solution to this issue, we hereby propose a strategy of incorporating ND complexes within an injectable hydrogel matrix. The functional groups on the surface of the NDs can establish interactions with the model growth factor VEGF and promote a prolonged release from the polymer network, therefore, providing a longer therapeutic effect. Our strategy demonstrates the efficacy of using NDs as an essential component for the design of a novel injectable nanocomposite system with improved release capabilities.
Collapse
Affiliation(s)
- Settimio Pacelli
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States
| | - Francisca Acosta
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States
| | - Aparna R Chakravarti
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States
| | - Saheli G Samanta
- Department of Internal Medicine, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States
| | - Jonathan Whitlow
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States
| | - Saman Modaresi
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States
| | - Rafeeq P H Ahmed
- Department of Pathology, University of Cincinnati, 231-Albert Sabin Way, Cincinnati 45267, United States
| | - Johnson Rajasingh
- Department of Internal Medicine, Cardiovascular Research Institute, University of Kansas Medical Center, Kansas City, KS, United States
| | - Arghya Paul
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, School of Engineering, University of Kansas, Lawrence, KS, United States.
| |
Collapse
|