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Kowalczuk K, Wegner VD, Mosig AS, Schacher FH. Tailoring the Degradation Time of Polycationic PEG-Based Hydrogels toward Dynamic Cell Culture Matrices. ACS Appl Bio Mater 2024; 7:2402-2412. [PMID: 38470448 PMCID: PMC11022240 DOI: 10.1021/acsabm.4c00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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: 01/14/2024] [Revised: 02/27/2024] [Accepted: 02/28/2024] [Indexed: 03/13/2024]
Abstract
Poly(ethylene glycol)-based (PEG) hydrogels provide an ideal platform to obtain well-defined and tailor-made cell culture matrices to enhance in vitro cell culture conditions, although cell adhesion is often challenging when the cells are cultivated on the substrate surface. We herein demonstrate two approaches for the synthesis of polycationic PEG-based hydrogels which were modified to enhance cell-matrix interactions, to improve two-dimensional (2D) cell culture, and catalyze hydrolytic degradation. While the utilization of N,N-(bisacryloxyethyl) amine (BAA) as cross-linker for in situ gelation provides degradable scaffolds for dynamic cell culture, the incorporation of short segments of poly(N-(3-(dimethylamino)propyl)acrylamide) (PDMAPAam) provides high local cationic charge density leading to PEG-based hydrogels with high selectivity for fibroblastic cell lines. The adsorption of transforming growth factor (TGF-β) into the hydrogels induced stimulation of fibrosis and thus the formation of collagen as a natural ECM compound. With this, these dynamic hydrogels enhance in vitro cell culture by providing a well-defined, artificial, and degradable matrix that stimulates cells to produce their own natural scaffold within a defined time frame.
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Affiliation(s)
- Kathrin Kowalczuk
- Institute
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, D-07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich-Schiller-University
Jena, Philosophenweg
7, D-07743 Jena, Germany
- Cluster
of Excellence Balance of the Microverse, Friedrich Schiller University Jena, Grüne Aue, D-07754 Jena, Germany
| | - Valentin D. Wegner
- Institute
of Biochemistry II, Jena University Hospital, Am Nonnenplan 2-4, 07743 Jena, Germany
| | - Alexander S. Mosig
- Cluster
of Excellence Balance of the Microverse, Friedrich Schiller University Jena, Grüne Aue, D-07754 Jena, Germany
- Institute
of Biochemistry II, Jena University Hospital, Am Nonnenplan 2-4, 07743 Jena, Germany
- Center
for Sepsis Control and Care, Jena University
Hospital, Am Klinikum
1, 07747 Jena, Germany
| | - Felix H. Schacher
- Institute
of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, D-07743 Jena, Germany
- Jena
Center for Soft Matter (JCSM), Friedrich-Schiller-University
Jena, Philosophenweg
7, D-07743 Jena, Germany
- Cluster
of Excellence Balance of the Microverse, Friedrich Schiller University Jena, Grüne Aue, D-07754 Jena, Germany
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Kowalczuk K, Mons PJ, Ulrich HF, Wegner VD, Brendel JC, Mosig AS, Schacher FH. Asymmetric Block Extension of Star-Shaped [PEG-SH] 4 - toward Poly(dehydroalanine)-Functionalized PEG Hydrogels for Catch and Release of Charged Guest Molecules. Macromol Biosci 2024; 24:e2300230. [PMID: 37572335 DOI: 10.1002/mabi.202300230] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [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: 05/22/2023] [Revised: 07/12/2023] [Indexed: 08/14/2023]
Abstract
With the incorporation of polyampholytic segments into soft matter, hydrogels can serve as a reservoir for a variety of charged molecules which can be caught and released upon changes in pH value. Asymmetric block extension of one arm for star-shaped poly(ethylene glycol) [PEG26 -SH]4 using short segments of polyampholytic poly(dehydroalanine) (PDha) is herein demonstrated while maintaining the functional thiol end groups for network formation. For subsequent hydrogel synthesis with up to 10 wt.% PDha a straightforward and biocompatible photoinitiated thiol-ene click reaction is exploited. The investigation of the swelling properties of the hydrogel revealed responsive behavior toward ionic strength and variations in pH value. Moreover, the reversible adsorption of the model dyes methylene blue (MB) and acid orange 7 (AO7) is investigated by UV-vis measurements and the procedure can be successfully transferred to the adsorption of the adhesion peptide RGDS resulting in an uptake of 1.5 wt% RGDS with regard to the dry weight of the hydrogel.
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Affiliation(s)
- Kathrin Kowalczuk
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry (CEEC), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, Grüne Aue, 07754, Jena, Germany
| | - Peter J Mons
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry (CEEC), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Hans F Ulrich
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Valentin D Wegner
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747, Jena, Germany
| | - Johannes C Brendel
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
| | - Alexander S Mosig
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747, Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Am Klinikum 1, 07747, Jena, Germany
| | - Felix H Schacher
- Institute of Organic Chemistry and Macromolecular Chemistry (IOMC), Friedrich-Schiller-University Jena, Lessingstraße 8, 07743, Jena, Germany
- Jena Center for Soft Matter (JCSM), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry (CEEC), Friedrich-Schiller-University Jena, Philosophenweg 7, 07743, Jena, Germany
- Cluster of Excellence Balance of the Microverse, Friedrich Schiller University Jena, Grüne Aue, 07754, Jena, Germany
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Ney LM, Wipplinger M, Grossmann M, Engert N, Wegner VD, Mosig AS. Short chain fatty acids: key regulators of the local and systemic immune response in inflammatory diseases and infections. Open Biol 2023; 13:230014. [PMID: 36977462 PMCID: PMC10049789 DOI: 10.1098/rsob.230014] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [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: 03/30/2023] Open
Abstract
The human intestinal microbiome substantially affects human health and resistance to infections in its dynamic composition and varying release of microbial-derived metabolites. Short-chain fatty acids (SCFA) produced by commensal bacteria through fermentation of indigestible fibres are considered key regulators in orchestrating the host immune response to microbial colonization by regulating phagocytosis, chemokine and central signalling pathways of cell growth and apoptosis, thereby shaping the composition and functionality of the intestinal epithelial barrier. Although research of the last decades provided valuable insight into the pleiotropic functions of SCFAs and their capability to maintain human health, mechanistic details on how SCFAs act across different cell types and other organs are not fully understood. In this review, we provide an overview of the various functions of SCFAs in regulating cellular metabolism, emphasizing the orchestration of the immune response along the gut-brain, the gut-lung and the gut-liver axes. We discuss their potential pharmacological use in inflammatory diseases and infections and highlight new options of relevant human three-dimensional organ models to investigate and validate their biological functions in more detail.
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Affiliation(s)
- Lisa-Marie Ney
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
| | - Maximilian Wipplinger
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
| | - Martha Grossmann
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
| | - Nicole Engert
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
| | - Valentin D Wegner
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
| | - Alexander S Mosig
- Institute of Biochemistry II, Jena University Hospital, Kastanienallee 1, 07747 Jena, Germany
- Center for Sepsis Control and Care, Jena University Hospital, Am Klinikum 1, 07747 Jena, Germany
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