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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.
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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
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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.
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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
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Modaresi S, Pacelli S, Subham S, Dathathreya K, Paul A. Intracellular Delivery of Exogenous Macromolecules into Human Mesenchymal Stem Cells by Double Deformation of the Plasma Membrane. Adv Therap 2019. [DOI: 10.1002/adtp.201900130] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Saman Modaresi
- Department of Chemical and Petroleum EngineeringBioIntel Research LaboratoryUniversity of Kansas Lawrence KS 66045 USA
| | - Settimio Pacelli
- Department of Chemical and Petroleum EngineeringBioIntel Research LaboratoryUniversity of Kansas Lawrence KS 66045 USA
| | - Siddharth Subham
- Department of Chemical and Petroleum EngineeringBioIntel Research LaboratoryUniversity of Kansas Lawrence KS 66045 USA
| | - Kavya Dathathreya
- Department of Chemical and Petroleum EngineeringBioIntel Research LaboratoryUniversity of Kansas Lawrence KS 66045 USA
| | - Arghya Paul
- Department of Chemical and Petroleum EngineeringBioIntel Research LaboratoryUniversity of Kansas Lawrence KS 66045 USA
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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.
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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
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Modaresi S, Pacelli S, Whitlow J, Paul A. Deciphering the role of substrate stiffness in enhancing the internalization efficiency of plasmid DNA in stem cells using lipid-based nanocarriers. Nanoscale 2018; 10:8947-8952. [PMID: 29693099 PMCID: PMC5957767 DOI: 10.1039/c8nr01516c] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This study investigates the role of substrate stiffness in the non-viral transfection of human adipose-derived stem cells (hASCs) with the aim to maximize the hASC expression of vascular endothelial growth factor (VEGF). The results confirm the direct effect of substrate stiffness in regulating cytoskeletal remodeling and corresponding plasmid internalization.
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Affiliation(s)
- Saman Modaresi
- BioIntel Research Laboratory, Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, School of Engineering, University of Kansas, Lawrence, KS, USA.
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Pacelli S, Basu S, Whitlow J, Chakravarti A, Acosta F, Varshney A, Modaresi S, Berkland C, Paul A. Strategies to develop endogenous stem cell-recruiting bioactive materials for tissue repair and regeneration. Adv Drug Deliv Rev 2017; 120:50-70. [PMID: 28734899 PMCID: PMC5705585 DOI: 10.1016/j.addr.2017.07.011] [Citation(s) in RCA: 97] [Impact Index Per Article: 13.9] [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: 04/02/2017] [Revised: 07/05/2017] [Accepted: 07/16/2017] [Indexed: 02/07/2023]
Abstract
A leading strategy in tissue engineering is the design of biomimetic scaffolds that stimulate the body's repair mechanisms through the recruitment of endogenous stem cells to sites of injury. Approaches that employ the use of chemoattractant gradients to guide tissue regeneration without external cell sources are favored over traditional cell-based therapies that have limited potential for clinical translation. Following this concept, bioactive scaffolds can be engineered to provide a temporally and spatially controlled release of biological cues, with the possibility to mimic the complex signaling patterns of endogenous tissue regeneration. Another effective way to regulate stem cell activity is to leverage the inherent chemotactic properties of extracellular matrix (ECM)-based materials to build versatile cell-instructive platforms. This review introduces the concept of endogenous stem cell recruitment, and provides a comprehensive overview of the strategies available to achieve effective cardiovascular and bone tissue regeneration.
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Affiliation(s)
- Settimio Pacelli
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Sayantani Basu
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Jonathan Whitlow
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Aparna Chakravarti
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Francisca Acosta
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Arushi Varshney
- Department of Human Genetics, University of Michigan, Ann Arbor, MI, USA.
| | - Saman Modaresi
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
| | - Cory Berkland
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA; Department of Pharmaceutical Chemistry, University of Kansas, Lawrence, KS, USA.
| | - Arghya Paul
- Department of Chemical and Petroleum Engineering, Bioengineering Graduate Program, University of Kansas, Lawrence, KS, USA.
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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.
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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.
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Ghasem Mohseni M, Modaresi S, Hosseini SR, Salavati A. Simplified retropubic prostatectomy technique: faster and not more hemorrhagic. MINERVA UROL NEFROL 2010; 62:157-161. [PMID: 20562796] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
AIM To report the technical feasibility of performing modified open prostatectomy. METHODS From July 2004 to May 2007, 103 patients suffering from benign prostatic hyperplasia were operated with this technique. We only used two wide transverse stay sutures at the anterior prostate surface and performed capsulotomy with electrocautery. We did not use the incision of endopelvic fascia, control of lateral pedicles or the transection of puboprostatic ligament. We analyzed the preoperative, operative and post operative data of these patients, prospectively. RESULTS The mean prostatic weight was 86g (range: 65-195). The mean operative time was 43 minutes (range: 36-52). The mean catheterization time was 5 days (range: 4-8). The mean hospital stay was 4 days (rang: 3-7). The mean decrease in the heamoglobin level from before to one day after the surgery was 1.3 g/dL. The estimated mean bleeding during the surgery was 423cc (range: 200-800cc). Post-operatively, 9 patients (8.7%) had mild urge incontinence. CONCLUSION Our modified retropubic prostatectomy is a simple and efficient technique that can significantly reduce the operation time. In comparison to other techniques; we had no more significant bleedings and further decreases in hemoglobin level during the procedure.
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