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Zakzak K, Semenescu AD, Moacă EA, Predescu I, Drăghici G, Vlaia L, Vlaia V, Borcan F, Dehelean CA. Comprehensive Biosafety Profile of Carbomer-Based Hydrogel Formulations Incorporating Phosphorus Derivatives. Gels 2024; 10:477. [PMID: 39057500 PMCID: PMC11276259 DOI: 10.3390/gels10070477] [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: 06/25/2024] [Revised: 07/15/2024] [Accepted: 07/17/2024] [Indexed: 07/28/2024] Open
Abstract
Determining the safety of a newly developed experimental product is a crucial condition for its medical use, especially for clinical trials. In this regard, four hydrogel-type formulations were manufactured, all of which were based on carbomer (Blank-CP940) and encapsulated with caffeine (CAF-CP940), phosphorus derivatives (phenyl phosphinic (CAF-S1-CP940) and 2-carboxyethyl phenyl phosphinic acids (CAF-S2-CP940)). The main aim of this research was to provide a comprehensive outline of the biosafety profile of the above-mentioned hydrogels. The complex in vitro screening (cell viability, cytotoxicity, morphological changes in response to exposure, and changes in nuclei morphology) on two types of healthy skin cell lines (HaCaT-human keratinocytes and JB6 Cl 41-5a-murine epidermal cells) exhibited a good biosafety profile when both cell lines were treated for 24 h with 150 μg/mL of each hydrogel. A comprehensive analysis of the hydrogel's impact on the genetic profile of HaCaT cells sustains the in vitro experiments. The biosafety profile was completed with the in vivo and in ovo assays. The outcome revealed that the developed hydrogels exerted good biocompatibility after topical application on BALB/c nude mice's skin. It also revealed a lack of toxicity after exposure to the hen's chicken embryo. Further investigations are needed, regarding the in vitro and in vivo therapeutic efficacy and safety for long-term use and potential clinical translatability.
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Affiliation(s)
- Khaled Zakzak
- Department of Pharmaceutical Technology, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (K.Z.); (L.V.)
| | - Alexandra-Denisa Semenescu
- Department of Toxicology, Drug Industry, Management and Legislation, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (A.-D.S.); (I.P.); (G.D.); (C.-A.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Elena-Alina Moacă
- Department of Toxicology, Drug Industry, Management and Legislation, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (A.-D.S.); (I.P.); (G.D.); (C.-A.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Iasmina Predescu
- Department of Toxicology, Drug Industry, Management and Legislation, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (A.-D.S.); (I.P.); (G.D.); (C.-A.D.)
| | - George Drăghici
- Department of Toxicology, Drug Industry, Management and Legislation, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (A.-D.S.); (I.P.); (G.D.); (C.-A.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Lavinia Vlaia
- Department of Pharmaceutical Technology, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (K.Z.); (L.V.)
- Formulation and Technology of Drugs Research Center, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania;
| | - Vicenţiu Vlaia
- Formulation and Technology of Drugs Research Center, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania;
- Department of Organic Chemistry, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania
| | - Florin Borcan
- Department of Analytical Chemistry, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania;
| | - Cristina-Adriana Dehelean
- Department of Toxicology, Drug Industry, Management and Legislation, Faculty of Pharmacy, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania; (A.-D.S.); (I.P.); (G.D.); (C.-A.D.)
- Research Center for Pharmaco-Toxicological Evaluation, “Victor Babes” University of Medicine and Pharmacy Timisoara, 2nd Eftimie Murgu Square, 300041 Timisoara, Romania
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Ozhava D, Bektas C, Lee K, Jackson A, Mao Y. Human Mesenchymal Stem Cells on Size-Sorted Gelatin Hydrogel Microparticles Show Enhanced In Vitro Wound Healing Activities. Gels 2024; 10:97. [PMID: 38391427 PMCID: PMC10887759 DOI: 10.3390/gels10020097] [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: 12/22/2023] [Revised: 01/17/2024] [Accepted: 01/22/2024] [Indexed: 02/24/2024] Open
Abstract
The demand for innovative therapeutic interventions to expedite wound healing, particularly in vulnerable populations such as aging and diabetic patients, has prompted the exploration of novel strategies. Mesenchymal stem cell (MSC)-based therapy emerges as a promising avenue for treating acute and chronic wounds. However, its clinical application faces persistent challenges, notably the low survivability and limited retention time of engraftment in wound environments. Addressing this, a strategy to sustain the viability and functionality of human MSCs (hMSCs) in a graft-able format has been identified as crucial for advanced wound care. Hydrogel microparticles (HMPs) emerge as promising entities in the field of wound healing, showcasing versatile capabilities in delivering both cells and bioactive molecules/drugs. In this study, gelatin HMPs (GelMPs) were synthesized via an optimized mild processing method. GelMPs with distinct diameter sizes were sorted and characterized. The growth of hMSCs on GelMPs with various sizes was evaluated. The release of wound healing promoting factors from hMSCs cultured on different GelMPs were assessed using scratch wound assays and gene expression analysis. GelMPs with a size smaller than 100 microns supported better cell growth and cell migration compared to larger sizes (100 microns or 200 microns). While encapsulation of hMSCs in hydrogels has been a common route for delivering viable hMSCs, we hypothesized that hMSCs cultured on GelMPs are more robust than those encapsulated in hydrogels. To test this hypothesis, hMSCs were cultured on GelMPs or in the cross-linked methacrylated gelatin hydrogel (GelMA). Comparative analysis of growth and wound healing effects revealed that hMSCs cultured on GelMPs exhibited higher viability and released more wound healing activities in vitro. This observation highlights the potential of GelMPs, especially those with a size smaller than 100 microns, as a promising carrier for delivering hMSCs in wound healing applications, providing valuable insights for the optimization of advanced therapeutic strategies.
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Affiliation(s)
- Derya Ozhava
- Laboratory for Biomaterials Research, Department of Chemistry and Chemical Biology, Rutgers University, 145 Bevier Rd., Piscataway, NJ 08854, USA
- Department of Chemistry and Chemical Processing Technologies, Cumra Vocational School, Selcuk University, 42130 Konya, Turkey
| | - Cemile Bektas
- Laboratory for Biomaterials Research, Department of Chemistry and Chemical Biology, Rutgers University, 145 Bevier Rd., Piscataway, NJ 08854, USA
| | - Kathleen Lee
- Laboratory for Biomaterials Research, Department of Chemistry and Chemical Biology, Rutgers University, 145 Bevier Rd., Piscataway, NJ 08854, USA
| | - Anisha Jackson
- Laboratory for Biomaterials Research, Department of Chemistry and Chemical Biology, Rutgers University, 145 Bevier Rd., Piscataway, NJ 08854, USA
| | - Yong Mao
- Laboratory for Biomaterials Research, Department of Chemistry and Chemical Biology, Rutgers University, 145 Bevier Rd., Piscataway, NJ 08854, USA
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Xia S, Qin X, Wang J, Ren H. Advancements in the pathogenesis of hepatic osteodystrophy and the potential therapeutic of mesenchymal stromal cells. Stem Cell Res Ther 2023; 14:359. [PMID: 38087318 PMCID: PMC10717286 DOI: 10.1186/s13287-023-03605-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Accepted: 12/06/2023] [Indexed: 12/18/2023] Open
Abstract
Hepatic osteodystrophy (HOD) is a metabolically associated bone disease mainly manifested as osteoporosis with the characteristic of bone loss induced by chronic liver disease (CLD). Due to its high incidence in CLD patients and increased risk of fracture, the research on HOD has received considerable interest. The specific pathogenesis of HOD has not been fully revealed. While it is widely believed that disturbance of hormone level, abnormal secretion of cytokines and damage of intestinal barrier caused by CLD might jointly affect the bone metabolic balance of bone formation and bone absorption. At present, the treatment of HOD is mainly to alleviate the bone loss by drug treatment, but the efficacy and safety are not satisfactory. Mesenchymal stromal cells (MSCs) are cells with multidirectional differentiation potential, cell transplantation therapy based on MSCs is an emerging therapeutic approach. This review mainly summarized the pathogenesis and treatment of HOD, reviewed the research progress of MSCs therapy and the combination of MSCs and scaffolds in the application of osteoporotic bone defects, and discussed the potential and limitations of MSCs therapy, providing theoretical basis for subsequent studies.
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Affiliation(s)
- Senzhe Xia
- Department of Oncological Surgery, Wenzhou Central Hospital, Wenzhou, 325000, China
| | - Xueqian Qin
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China
| | - Jinglin Wang
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing University, Nanjing, 210008, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
| | - Haozhen Ren
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital Clinical College of Jiangsu University, Nanjing University, Nanjing, 210008, China.
- Division of Hepatobiliary and Transplantation Surgery, Department of General Surgery, Nanjing Drum Tower Hospital, The Affiliated Hospital of Medical School, Nanjing University, Nanjing, 210008, China.
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Olov N, Bagheri-Khoulenjani S, Mirzadeh H. Injectable hydrogels for bone and cartilage tissue engineering: a review. Prog Biomater 2022; 11:113-135. [PMID: 35420394 PMCID: PMC9156638 DOI: 10.1007/s40204-022-00185-8] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 03/24/2022] [Indexed: 10/18/2022] Open
Abstract
Tissue engineering, using a combination of living cells, bioactive molecules, and three-dimensional porous scaffolds, is a promising alternative to traditional treatments such as the use of autografts and allografts for bone and cartilage tissue regeneration. Scaffolds, in this combination, can be applied either through surgery by implantation of cell-seeded pre-fabricated scaffolds, or through injection of a solidifying precursor and cell mixture, or as an injectable cell-seeded pre-fabricated scaffold. In situ forming and pre-fabricated injectable scaffolds can be injected directly into the defect site with complex shape and critical size in a minimally invasive manner. Proper and homogeneous distribution of cells, biological factors, and molecular signals in these injectable scaffolds is another advantage over pre-fabricated scaffolds. Due to the importance of injectable scaffolds in tissue engineering, here different types of injectable scaffolds, their design challenges, and applications in bone and cartilage tissue regeneration are reviewed.
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Affiliation(s)
- Nafiseh Olov
- Polymer and Colour Engineering Department, Amirkabir University of Technology, 424 Hafez-Ave., 15875-4413, Tehran, Iran
| | - Shadab Bagheri-Khoulenjani
- Polymer and Colour Engineering Department, Amirkabir University of Technology, 424 Hafez-Ave., 15875-4413, Tehran, Iran.
| | - Hamid Mirzadeh
- Polymer and Colour Engineering Department, Amirkabir University of Technology, 424 Hafez-Ave., 15875-4413, Tehran, Iran.
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Hamami R, Simaan-Yameen H, Gargioli C, Seliktar D. Comparison of Four Different Preparation Methods for Making Injectable Microgels for Tissue Engineering and Cell Therapy. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2022. [DOI: 10.1007/s40883-022-00261-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hinkelmann S, Springwald AH, Starke A, Kalwa H, Wölk C, Hacker MC, Schulz-Siegmund M. Microtissues from mesenchymal stem cells and siRNA-loaded cross-linked gelatin microparticles for bone regeneration. Mater Today Bio 2022; 13:100190. [PMID: 34988418 PMCID: PMC8693629 DOI: 10.1016/j.mtbio.2021.100190] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 11/20/2021] [Accepted: 12/11/2021] [Indexed: 12/13/2022] Open
Abstract
The aim of this study was the evaluation of cross-linked gelatin microparticles (cGM) as substrates for osteogenic cell culture to assemble 3D microtissues and their use as delivery system for siRNA to cells in these assemblies. In a 2D transwell cultivation system, we found that cGM are capable to accumulate calcium ions from the surrounding medium. Such a separation of cGM and SaOS-2 cells consequently led to a suppressed matrix mineral formation in the SaOS-2 culture on the well bottom of the transwell system. Thus, we decided to use cGM as component in 3D microtissues and get a close contact between calcium ion accumulating microparticles and cells to improve matrix mineralization. Gelatin microparticles were cross-linked with a N,N-diethylethylenediamine-derivatized (DEED) maleic anhydride (MA) containing oligo (pentaerythritol diacrylate monostearate-co-N-isopropylacrylamide-co-MA) (oPNMA) and aggregated with SaOS-2 or human mesenchymal stem cells (hMSC) to microtissue spheroids. We systematically varied the content of cGM in microtissues and observed cell differentiation and tissue formation. Microtissues were characterized by gene expression, ALP activity and matrix mineralization. Mineralization was detectable in microtissues with SaOS-2 cells after 7 days and with hMSC after 24–28 days in osteogenic culture. When we transfected hMSC via cGM loaded with Lipofectamine complexed chordin siRNA, we found increased ALP activity and accelerated mineral formation in microtissues in presence of BMP-2. As a model for positive paracrine effects that indicate promising in vivo effects of these microtissues, we incubated pre-differentiated microtissues with freshly seeded hMSC monolayers and found improved mineral formation all over the well in the co-culture model. These findings may support the concept of microtissues from hMSC and siRNA-loaded cGM for bone regeneration.
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Affiliation(s)
- Sandra Hinkelmann
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Alexandra H Springwald
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Annett Starke
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Hermann Kalwa
- Rudolf-Boehm-Institute for Pharmacology and Toxicology, Faculty of Medicine, University of Leipzig, Leipzig, Germany
| | - Christian Wölk
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
| | - Michael C Hacker
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany.,Institute of Pharmaceutics and Biopharmaceutics, Heinrich Heine University, Düsseldorf, Germany
| | - Michaela Schulz-Siegmund
- Institute of Pharmacy, Pharmaceutical Technology, Faculty of Medicine, University of Leipzig, Germany
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Wruck W, Graffmann N, Spitzhorn LS, Adjaye J. Human Induced Pluripotent Stem Cell-Derived Mesenchymal Stem Cells Acquire Rejuvenation and Reduced Heterogeneity. Front Cell Dev Biol 2021; 9:717772. [PMID: 34604216 PMCID: PMC8481886 DOI: 10.3389/fcell.2021.717772] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 08/17/2021] [Indexed: 12/20/2022] Open
Abstract
Despite the uniform selection criteria for the isolation of human mesenchymal stem cells (MSCs), considerable heterogeneity exists which reflects the distinct tissue origins and differences between individuals with respect to their genetic background and age. This heterogeneity is manifested by the variabilities seen in the transcriptomes, proteomes, secretomes, and epigenomes of tissue-specific MSCs. Here, we review literature on different aspects of MSC heterogeneity including the role of epigenetics and the impact of MSC heterogeneity on therapies. We then combine this with a meta-analysis of transcriptome data from distinct MSC subpopulations derived from bone marrow, adipose tissue, cruciate, tonsil, kidney, umbilical cord, fetus, and induced pluripotent stem cells derived MSCs (iMSCs). Beyond that, we investigate transcriptome differences between tissue-specific MSCs and pluripotent stem cells. Our meta-analysis of numerous MSC-related data sets revealed markers and associated biological processes characterizing the heterogeneity and the common features of MSCs from various tissues. We found that this heterogeneity is mainly related to the origin of the MSCs and infer that microenvironment and epigenetics are key drivers. The epigenomes of MSCs alter with age and this has a profound impact on their differentiation capabilities. Epigenetic modifications of MSCs are propagated during cell divisions and manifest in differentiated cells, thus contributing to diseased or healthy phenotypes of the respective tissue. An approach used to reduce heterogeneity caused by age- and tissue-related epigenetic and microenvironmental patterns is the iMSC concept: iMSCs are MSCs generated from induced pluripotent stem cells (iPSCs). During iMSC generation epigenetic and chromatin remodeling result in a gene expression pattern associated with rejuvenation thus allowing to overcome age-related shortcomings (e.g., limited differentiation and proliferation capacity). The importance of the iMSC concept is underlined by multiple clinical trials. In conclusion, we propose the use of rejuvenated iMSCs to bypass tissue- and age-related heterogeneity which are associated with native MSCs.
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Affiliation(s)
- Wasco Wruck
- Medical Faculty, Institute for Stem Cell Research and Regenerative Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Nina Graffmann
- Medical Faculty, Institute for Stem Cell Research and Regenerative Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - Lucas-Sebastian Spitzhorn
- Medical Faculty, Institute for Stem Cell Research and Regenerative Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
| | - James Adjaye
- Medical Faculty, Institute for Stem Cell Research and Regenerative Medicine, Heinrich Heine University Düsseldorf, Düsseldorf, Germany
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Challenges and advances in clinical applications of mesenchymal stromal cells. J Hematol Oncol 2021; 14:24. [PMID: 33579329 PMCID: PMC7880217 DOI: 10.1186/s13045-021-01037-x] [Citation(s) in RCA: 268] [Impact Index Per Article: 89.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 01/26/2021] [Indexed: 12/12/2022] Open
Abstract
Mesenchymal stromal cells (MSCs), also known as mesenchymal stem cells, have been intensely investigated for clinical applications within the last decades. However, the majority of registered clinical trials applying MSC therapy for diverse human diseases have fallen short of expectations, despite the encouraging pre-clinical outcomes in varied animal disease models. This can be attributable to inconsistent criteria for MSCs identity across studies and their inherited heterogeneity. Nowadays, with the emergence of advanced biological techniques and substantial improvements in bio-engineered materials, strategies have been developed to overcome clinical challenges in MSC application. Here in this review, we will discuss the major challenges of MSC therapies in clinical application, the factors impacting the diversity of MSCs, the potential approaches that modify MSC products with the highest therapeutic potential, and finally the usage of MSCs for COVID-19 pandemic disease.
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Awang-Junaidi AH, Singh J, Honaramooz A. Regeneration of testis tissue after ectopic implantation of porcine testis cell aggregates in mice: improved consistency of outcomes and in situ monitoring. Reprod Fertil Dev 2021; 32:594-609. [PMID: 32051087 DOI: 10.1071/rd19043] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2019] [Accepted: 10/08/2019] [Indexed: 12/12/2022] Open
Abstract
Ectopic implantation of donor testis cell aggregates in recipient mice results in de novo formation or regeneration of testis tissue and, as such, provides a unique invivo model for the study of testis development. However, currently the results are inconsistent and the efficiency of the model remains low. This study was designed to: (1) examine several factors that can potentially improve the consistency and efficiency of this model and (2) explore the use of ultrasound biomicroscopy (UBM) for the non-invasive invivo evaluation of implants. Testis cell aggregates, containing ~40% gonocytes, from 1-week-old donor piglets were implanted under the back skin of immunodeficient mice through skin incisions using gel matrices or through subcutaneous injection without using gel matrices. The addition of gel matrices led to inconsistent tissue development; gelatin had the greatest development, followed by collagen, whereas agarose resulted in poor development. The results also depended on the implanted cell numbers since implants with 100×106 cells were larger than those with 50×106 cells. The injection approach for cell implantation was less invasive and resulted in more consistent and efficient testis tissue development. UBM provided promising results as a means of non-invasive monitoring of implants.
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Affiliation(s)
- Awang Hazmi Awang-Junaidi
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4 Canada; and Present address: Department of Veterinary Preclinical Sciences, Faculty of Veterinary Medicine, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor Darul Ehsan, Malaysia
| | - Jaswant Singh
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4 Canada
| | - Ali Honaramooz
- Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, SK S7N 5B4 Canada; and Corresponding author.
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Abstract
Regenerative medicine is a novel scientific field that employs the use of stem cells as cell-based therapy for the regeneration and functional restoration of damaged tissues and organs. Stem cells bear characteristics such as the capacity for self-renewal and differentiation towards specific lineages and, therefore, serve as a backup reservoir in case of tissue injuries. Therapeutically, they can be autologously or allogeneically transplanted for tissue regeneration; however, allogeneic stem cell transplantation can provoke host immune responses leading to a host-versus-transplant reaction. A probable solution to this problem is stem cell encapsulation, a technique that utilizes various biomaterials for the creation of a semi-permeable membrane that encases the stem cells. Stem cell encapsulation can be accomplished by employing a great variety of natural and/or synthetic hydrogels and offers many benefits in regenerative medicine, including protection from the host’s immune system and mechanical stress, improved cell viability, proliferation and differentiation, cryopreservation and controlled and continuous delivery of the stem-cell-secreted therapeutic agents. Here, in this review, we report and discuss almost all natural and synthetic hydrogels used in stem cell encapsulation, along with the benefits that these materials, alone or in combination, could offer to cell therapy through functional cell encapsulation.
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Hogan KJ, Mikos AG. Biodegradable thermoresponsive polymers: Applications in drug delivery and tissue engineering. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.123063] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Palumbo FS, Agnello S, Fiorica C, Pitarresi G, Giammona G. Chemical stiffening of constructs between polymeric microparticles based on a hyaluronic acid derivative and mesenchymal stem cells: rheological and in vitro
viability studies. POLYM INT 2018. [DOI: 10.1002/pi.5722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Fabio S Palumbo
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Stefano Agnello
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Calogero Fiorica
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Giovanna Pitarresi
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
| | - Gaetano Giammona
- Dipartimento di Scienze e Tecnologie Biologiche Chimiche e Farmaceutiche (STEBICEF); Università degli Studi di Palermo; Palermo Italy
- Institute of Biophysics at Palermo, Italian National Research Council; Palermo Italy
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Echave M, Sánchez P, Pedraz J, Orive G. Progress of gelatin-based 3D approaches for bone regeneration. J Drug Deliv Sci Technol 2017. [DOI: 10.1016/j.jddst.2017.04.012] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
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Vo TN, Tabata Y, Mikos AG. Effects of cellular parameters on the in vitro osteogenic potential of dual-gelling mesenchymal stem cell-laden hydrogels. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2017; 27:1277-90. [PMID: 27328947 DOI: 10.1080/09205063.2016.1195157] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
This work investigated the effects of cellular encapsulation density and differentiation stage on the osteogenic capacity of injectable, dual physically and chemically gelling hydrogels comprised of thermogelling macromers and polyamidoamine crosslinkers. Undifferentiated and osteogenically predifferentiated mesenchymal stem cells (MSCs) were encapsulated within 20 wt% composite hydrogels with gelatin microparticles at densities of six or 15 million cells/mL. We hypothesized that a high encapsulation density and predifferentiation would promote increased cellular interaction and accelerate osteogenesis, leading to enhanced osteogenic potential in vitro. Hydrogels were able to maintain the viability of the encapsulated cells over a period of 28 days, with the high encapsulation density and predifferentiation group possessing the highest DNA content at all time points. Early alkaline phosphatase activity and mineralization were promoted by encapsulation density, whereas this effect by predifferentiation was only observed in the low seeding density groups. Both parameters only demonstrated short-lived effects when examined independently, but jointly led to greater levels of alkaline phosphatase activity and mineralization. The combined effects suggest that there may be optimal encapsulation densities and differentiation periods that need to be investigated to improve MSCs for biomaterial-based therapeutics in bone tissue engineering.
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Affiliation(s)
- Tiffany N Vo
- a Department of Bioengineering , Rice University , Houston , TX , USA
| | - Yasuhiko Tabata
- b Department of Biomaterials , Institute for Frontier Medical Sciences, Kyoto University , Kyoto , Japan
| | - Antonios G Mikos
- a Department of Bioengineering , Rice University , Houston , TX , USA.,c Department of Chemical and Biomolecular Engineering , Rice University , Houston , TX , USA
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Pehlivaner Kara MO, Ekenseair AK. Free Epoxide Content Mediates Encapsulated Cell Viability and Activity through Protein Interactions in a Thermoresponsive, In Situ Forming Hydrogel. Biomacromolecules 2017; 18:1473-1481. [PMID: 28391683 DOI: 10.1021/acs.biomac.6b01898] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The development of synthetic and well-defined extracellular matrices that are free of xenogeneic components and are capable of inducing desired cellular responses holds great potential for use in vitro as 3D cell culture environments and in vivo as scaffolds for tissue regeneration. In this study, the impact of free and partially occupied epoxide groups on the viability, activity, and behavior of rat fibroblasts encapsulated in thermoresponsive hydrogels based on poly(N-isopropylacrylamide) (pNiPAAm) was investigated. While fibroblasts encapsulated in neat pNiPAAm remained rounded and showed significant toxicity by 5 days, those encapsulated in the epoxide-modified thermogels demonstrated not only high viability but also an ability to proliferate, attach, produce extracellular matrix (ECM) components, and cluster. The results demonstrated that the presence of free epoxide groups led to the local conjugation of available proteins to produce a modified structure in situ, which supported cell viability, activity, and cluster formation within the hydrogel.
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Affiliation(s)
- Meryem O Pehlivaner Kara
- Department of Chemical Engineering, Northeastern University , 360 Huntington Avenue, 313 SN, Boston, Massachusetts 02115, United States
| | - Adam K Ekenseair
- Department of Chemical Engineering, Northeastern University , 360 Huntington Avenue, 313 SN, Boston, Massachusetts 02115, United States
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Wu Q, Yang B, Hu K, Cao C, Man Y, Wang P. Deriving Osteogenic Cells from Induced Pluripotent Stem Cells for Bone Tissue Engineering. TISSUE ENGINEERING PART B-REVIEWS 2016; 23:1-8. [PMID: 27392674 DOI: 10.1089/ten.teb.2015.0559] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Induced pluripotent stem cells (iPSCs), reprogrammed from adult somatic cells using defined transcription factors, are regarded as a promising cell source for tissue engineering. For the purpose of bone tissue regeneration, efficient in vitro differentiation of iPSCs into downstream cells, such as mesenchymal stem cells (MSCs), osteoblasts, or osteocyte-like cells, before use is necessary to limit undesired tumorogenesis associated with the pluripotency of iPSCs. Until recently numerous techniques on the production of iPSC-derived osteogenic progenitors have been introduced. We reviewed these protocols and provided a perspective on the comparisons of osteogenic potentials of (1) iPSC-derived osteogenic cells produced by different protocols, (2) iPSCs from different somatic origins, and (3) iPSC-derived MSC-like cells and bone marrow stem cells. Finally, we discussed the potential application of the diseased iPSCs for systematic bone disorders.
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Affiliation(s)
- Qingqing Wu
- 1 State Key Laboratory of Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University , Chengdu, China
| | - Bo Yang
- 1 State Key Laboratory of Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University , Chengdu, China
| | - Kevin Hu
- 2 University of Maryland Dental School , Baltimore, Maryland
| | - Cong Cao
- 3 Department of Stomatology, China-Japan Friendship Hospital , Beijing, China
| | - Yi Man
- 1 State Key Laboratory of Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University , Chengdu, China
| | - Ping Wang
- 1 State Key Laboratory of Oral Diseases, Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University , Chengdu, China .,2 University of Maryland Dental School , Baltimore, Maryland
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Pehlivaner Kara MO, Ekenseair AK. In situspray deposition of cell-loaded, thermally and chemically gelling hydrogel coatings for tissue regeneration. J Biomed Mater Res A 2016; 104:2383-93. [DOI: 10.1002/jbm.a.35774] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2016] [Revised: 04/21/2016] [Accepted: 05/04/2016] [Indexed: 01/19/2023]
Affiliation(s)
- Meryem O. Pehlivaner Kara
- Department of Chemical Engineering; Northeastern University; 360 Huntington Avenue, 313 SN Boston Massachusetts 02115
| | - Adam K. Ekenseair
- Department of Chemical Engineering; Northeastern University; 360 Huntington Avenue, 313 SN Boston Massachusetts 02115
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Biomaterial Applications in Cell-Based Therapy in Experimental Stroke. Stem Cells Int 2016; 2016:6810562. [PMID: 27274738 PMCID: PMC4870368 DOI: 10.1155/2016/6810562] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Revised: 03/11/2016] [Accepted: 04/04/2016] [Indexed: 01/08/2023] Open
Abstract
Stroke is an important health issue corresponding to the second cause of mortality and first cause of severe disability with no effective treatments after the first hours of onset. Regenerative approaches such as cell therapy provide an increase in endogenous brain structural plasticity but they are not enough to promote a complete recovery. Tissue engineering has recently aroused a major interesting development of biomaterials for use into the central nervous system. Many biomaterials have been engineered based on natural compounds, synthetic compounds, or a mix of both with the aim of providing polymers with specific properties. The mechanical properties of biomaterials can be exquisitely regulated forming polymers with different stiffness, modifiable physical state that polymerizes in situ, or small particles encapsulating cells or growth factors. The choice of biomaterial compounds should be adapted for the different applications, structure target, and delay of administration. Biocompatibilities with embedded cells and with the host tissue and biodegradation rate must be considerate. In this paper, we review the different applications of biomaterials combined with cell therapy in ischemic stroke and we explore specific features such as choice of biomaterial compounds and physical and mechanical properties concerning the recent studies in experimental stroke.
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Thermoresponsive hydrogels in biomedical applications. Eur J Pharm Biopharm 2015; 97:338-49. [DOI: 10.1016/j.ejpb.2015.05.017] [Citation(s) in RCA: 321] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2015] [Revised: 05/07/2015] [Accepted: 05/21/2015] [Indexed: 11/21/2022]
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Seo HI, Cho AN, Jang J, Kim DW, Cho SW, Chung BG. Thermo-responsive polymeric nanoparticles for enhancing neuronal differentiation of human induced pluripotent stem cells. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2015; 11:1861-9. [DOI: 10.1016/j.nano.2015.05.008] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2015] [Revised: 05/15/2015] [Accepted: 05/25/2015] [Indexed: 12/22/2022]
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Hendrijantini N, Kresnoadi U, Salim S, Agustono B, Retnowati E, Syahrial I, Mulawardhana P, Wardhana MP, Pramono C, Rantam FA. Study Biocompatibility and Osteogenic Differentiation Potential of Human Umbilical Cord Mesenchymal Stem Cells (hUCMSCs) with Gelatin Solvent. ACTA ACUST UNITED AC 2015. [DOI: 10.4236/jbise.2015.87039] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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In vitro and in vivo evaluation of self-mineralization and biocompatibility of injectable, dual-gelling hydrogels for bone tissue engineering. J Control Release 2014; 205:25-34. [PMID: 25483428 DOI: 10.1016/j.jconrel.2014.11.028] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2014] [Revised: 11/12/2014] [Accepted: 11/24/2014] [Indexed: 11/22/2022]
Abstract
In this study, we investigated the mineralization capacity and biocompatibility of injectable, dual-gelling hydrogels in a rat cranial defect as a function of hydrogel hydrophobicity from either the copolymerization of a hydrolyzable lactone ring or the hydrogel polymer content. The hydrogel system comprised a poly(N-isopropylacrylamide)-based thermogelling macromer (TGM) and a polyamidoamine crosslinker. The thermogelling macromer was copolymerized with (TGM/DBA) or without (TGM) a dimethyl-γ-butyrolactone acrylate (DBA)-containing lactone ring that modulated the lower critical solution temperature and thus, the hydrogel hydrophobicity, over time. Three hydrogel groups were examined: (1) 15wt.% TGM, (2) 15wt.% TGM/DBA, and (3) 20wt.% TGM/DBA. The hydrogels were implanted within an 8mm critical size rat cranial defect for 4 and 12weeks. Implants were harvested at each timepoint and analyzed for bone formation, hydrogel mineralization and tissue response using microcomputed tomography (microCT). Histology and fibrous capsule scoring showed a light inflammatory response at 4weeks that was mitigated by 12weeks for all groups. MicroCT scoring and bone volume quantification demonstrated a similar bone formation at 4weeks that was significantly increased for the more hydrophobic hydrogel formulations - 15wt.% TGM and 20wt.% TGM/DBA - from 4weeks to 12weeks. A complementary in vitro acellular mineralization study revealed that the hydrogels exhibited calcium binding properties in the presence of serum-containing media, which was modulated by the hydrogel hydrophobicity. The tailored mineralization capacity of these injectable, dual-gelling hydrogels with hydrolysis-dependent hydrophobicity presents an exciting property for their use in bone tissue engineering applications.
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