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Riabinin A, Pankratova M, Rogovaya O, Vorotelyak E, Terskikh V, Vasiliev A. Ideal Living Skin Equivalents, From Old Technologies and Models to Advanced Ones: The Prospects for an Integrated Approach. BIOMED RESEARCH INTERNATIONAL 2024; 2024:9947692. [PMID: 39184355 PMCID: PMC11343635 DOI: 10.1155/2024/9947692] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 04/18/2024] [Accepted: 07/20/2024] [Indexed: 08/27/2024]
Abstract
The development of technologies for the generation and transplantation of living skin equivalents (LSEs) is a significant area of translational medicine. Such functional equivalents can be used to model and study the morphogenesis of the skin and its derivatives, to test drugs, and to improve the healing of chronic wounds, burns, and other skin injuries. The evolution of LSEs over the past 50 years has demonstrated the leap in technology and quality and the shift from classical full-thickness LSEs to principled new models, including modification of classical models and skin organoids with skin derived from human-induced pluripotent stem cells (iPSCs) (hiPSCs). Modern methods and approaches make it possible to create LSEs that successfully mimic native skin, including derivatives such as hair follicles (HFs), sebaceous and sweat glands, blood vessels, melanocytes, and nerve cells. New technologies such as 3D and 4D bioprinting, microfluidic systems, and genetic modification enable achievement of new goals, cost reductions, and the scaled-up production of LSEs.
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Affiliation(s)
- Andrei Riabinin
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Maria Pankratova
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Olga Rogovaya
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Ekaterina Vorotelyak
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Vasiliy Terskikh
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
| | - Andrey Vasiliev
- Department of Cell BiologyKoltzov Institute of Developmental Biology of the Russian Academy of Sciences, Moscow, Russia
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Improvements in Skin Quality Biological Markers in Skin Explants Using Hyaluronic Acid Filler VYC-12L. PLASTIC AND RECONSTRUCTIVE SURGERY-GLOBAL OPEN 2020; 8:e2723. [PMID: 32537370 PMCID: PMC7253252 DOI: 10.1097/gox.0000000000002723] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2019] [Accepted: 02/03/2020] [Indexed: 11/26/2022]
Abstract
Hyaluronic acid (HA), both crosslinked and uncrosslinked, is used clinically to treat fine lines and provides additional improvements in skin quality attributes. The purpose of this study was to assess potential early differences in the expression of biological markers of skin quality in living human skin explants injected with uncrosslinked and crosslinked HA gels. Methods Living human skin explants injected with VYC-12L or noncrosslinked HA with mannitol (HYD) and noninjected controls were assessed via microscopy, histology, and immunohistochemistry on days 3 and/or 8 for biological markers of elasticity (collagen density, elastin, fibrillin-1) and hydration [aquaporin-3, acidic glycosaminoglycans (GAGs), HA]. Hydration was also assessed via a corneometer probe on days 0, 1, 2, and 8. Results On day 3 versus controls, VYC-12L moderately increased collagen density in the upper reticular dermis and clearly increased fibrillin-1 expression, with slight increases persisting on day 8. Increases with HYD were smaller and did not persist on day 8. Both VYC-12L and HYD increased aquaporin-3 expression and GAG content on days 3 and 8, but VYC-12L produced greater GAG increases in the reticular dermis. Day 8 instrument-assessed hydration increased by 49% and 22% for VYC-12L and HYD, respectively. Elastin expression in oxytalan and elaunin fibers was unchanged. Upper-dermal HA reductions suggested HA injection-induced hyaluronidase expression. Conclusion VYC-12L produced greater, more lasting improvements in biological markers of skin quality than HYD.
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Domschke P, Trucu D, Gerisch A, Chaplain MAJ. Structured models of cell migration incorporating molecular binding processes. J Math Biol 2017; 75:1517-1561. [PMID: 28405746 DOI: 10.1007/s00285-017-1120-y] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Revised: 03/07/2017] [Indexed: 10/19/2022]
Abstract
The dynamic interplay between collective cell movement and the various molecules involved in the accompanying cell signalling mechanisms plays a crucial role in many biological processes including normal tissue development and pathological scenarios such as wound healing and cancer. Information about the various structures embedded within these processes allows a detailed exploration of the binding of molecular species to cell-surface receptors within the evolving cell population. In this paper we establish a general spatio-temporal-structural framework that enables the description of molecular binding to cell membranes coupled with the cell population dynamics. We first provide a general theoretical description for this approach and then illustrate it with three examples arising from cancer invasion.
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Affiliation(s)
- Pia Domschke
- Fachbereich Mathematik, Technische Universität Darmstadt, Dolivostr. 15, 64293, Darmstadt, Germany.
| | - Dumitru Trucu
- Division of Mathematics, University of Dundee, Dundee, DD1 4HN, UK
| | - Alf Gerisch
- Fachbereich Mathematik, Technische Universität Darmstadt, Dolivostr. 15, 64293, Darmstadt, Germany
| | - Mark A J Chaplain
- School of Mathematics and Statistics, Mathematical Institute, University of St Andrews, St Andrews, KY16 9SS, UK
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Rothdiener M, Hegemann M, Uynuk-Ool T, Walters B, Papugy P, Nguyen P, Claus V, Seeger T, Stoeckle U, Boehme KA, Aicher WK, Stegemann JP, Hart ML, Kurz B, Klein G, Rolauffs B. Stretching human mesenchymal stromal cells on stiffness-customized collagen type I generates a smooth muscle marker profile without growth factor addition. Sci Rep 2016; 6:35840. [PMID: 27775041 PMCID: PMC5075785 DOI: 10.1038/srep35840] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2016] [Accepted: 10/05/2016] [Indexed: 12/18/2022] Open
Abstract
Using matrix elasticity and cyclic stretch have been investigated for inducing mesenchymal stromal cell (MSC) differentiation towards the smooth muscle cell (SMC) lineage but not in combination. We hypothesized that combining lineage-specific stiffness with cyclic stretch would result in a significantly increased expression of SMC markers, compared to non-stretched controls. First, we generated dense collagen type I sheets by mechanically compressing collagen hydrogels. Atomic force microscopy revealed a nanoscale stiffness range known to support myogenic differentiation. Further characterization revealed viscoelasticity and stable biomechanical properties under cyclic stretch with >99% viable adherent human MSC. MSCs on collagen sheets demonstrated a significantly increased mRNA but not protein expression of SMC markers, compared to on culture flasks. However, cyclic stretch of MSCs on collagen sheets significantly increased both mRNA and protein expression of α-smooth muscle actin, transgelin, and calponin versus plastic and non-stretched sheets. Thus, lineage-specific stiffness and cyclic stretch can be applied together for inducing MSC differentiation towards SMCs without the addition of recombinant growth factors or other soluble factors. This represents a novel stimulation method for modulating the phenotype of MSCs towards SMCs that could easily be incorporated into currently available methodologies to obtain a more targeted control of MSC phenotype.
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Affiliation(s)
- Miriam Rothdiener
- Siegfried Weller Institute for Trauma Research, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | | | - Tatiana Uynuk-Ool
- Siegfried Weller Institute for Trauma Research, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | - Brandan Walters
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Piruntha Papugy
- Siegfried Weller Institute for Trauma Research, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | - Phong Nguyen
- Siegfried Weller Institute for Trauma Research, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | - Valentin Claus
- Siegfried Weller Institute for Trauma Research, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | - Tanja Seeger
- Center for Medical Research, Medical University Clinic II, University of Tuebingen, Germany
| | - Ulrich Stoeckle
- Clinic for Trauma and Restorative Surgery, BG Trauma Clinic Tuebingen, University of Tuebingen, Germany
| | - Karen A. Boehme
- Department of Orthopaedic Surgery, University of Tuebingen, Germany
| | | | - Jan P. Stegemann
- Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, USA
| | - Melanie L. Hart
- Department of Orthopedics and Trauma Surgery, Albert-Ludwigs-University, Freiburg, Germany
| | - Bodo Kurz
- Department of Anatomy, Christian-Albrechts-University, Kiel, Germany
| | - Gerd Klein
- Center for Medical Research, Medical University Clinic II, University of Tuebingen, Germany
| | - Bernd Rolauffs
- Department of Orthopedics and Trauma Surgery, Albert-Ludwigs-University, Freiburg, Germany
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Thomas SN, Rohner NA, Edwards EE. Implications of Lymphatic Transport to Lymph Nodes in Immunity and Immunotherapy. Annu Rev Biomed Eng 2016; 18:207-33. [PMID: 26928210 DOI: 10.1146/annurev-bioeng-101515-014413] [Citation(s) in RCA: 54] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Adaptive immune response consists of many highly regulated, multistep cascades that protect against infection while preserving the health of autologous tissue. The proper initiation, maintenance, and resolution of such responses require the precise coordination of molecular and cellular signaling over multiple time and length scales orchestrated by lymphatic transport. In order to investigate these functions and manipulate them for therapy, a comprehensive understanding of how lymphatics influence immune physiology is needed. This review presents the current mechanistic understanding of the role of the lymphatic vasculature in regulating biomolecule and cellular transport from the interstitium, peripheral tissue immune surveillance, the lymph node stroma and microvasculature, and circulating lymphocyte homing to lymph nodes. This review also discusses the ramifications of lymphatic transport in immunity as well as tolerance and concludes with examples of how lymphatic-mediated targeting of lymph nodes has been exploited for immunotherapy applications.
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Affiliation(s)
- Susan N Thomas
- George W. Woodruff School of Mechanical Engineering and.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332; .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332.,Winship Cancer Institute, Emory University School of Medicine, Atlanta, Georgia 30322
| | - Nathan A Rohner
- George W. Woodruff School of Mechanical Engineering and.,Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332;
| | - Erin E Edwards
- Parker H. Petit Institute for Bioengineering and Bioscience, Georgia Institute of Technology, Atlanta, Georgia 30332; .,Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology and Emory University, Atlanta, Georgia 30332
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Cheng M, Johnson V, Murray MM. Effects of age and platelet-rich plasma on ACL cell viability and collagen gene expression. J Orthop Res 2012; 30:79-85. [PMID: 21748791 PMCID: PMC3202019 DOI: 10.1002/jor.21496] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 06/15/2011] [Indexed: 02/04/2023]
Abstract
Platelet-rich plasma (PRP) has shown in vivo potential to stimulate anterior cruciate ligament (ACL) healing at early time points in large animal models. However, in animal models, the healing potential of the ACL is dependent on animal age. In this study, we hypothesized that there are age-dependent differences in ACL cell metabolism, collagen gene expression, and the ability of the cells to respond to growth factors in PRP. To test this hypothesis, ACL cells were obtained from skeletally immature, adolescent and adult pigs, and cultured in a collagen type I hydrogel with or without PRP for 14 days. When cultured in collagen-only hydrogel, ACL cells from adult pigs had a 19% lower apoptotic rate as compared to immature pigs (p = 0.001) and a 25% higher cellular metabolic activity as compared to adolescent pigs (p = 0.006). The addition of PRP to the collagen hydrogel resulted in a significantly increased cellular metabolic activity, reduced apoptotic rate, and stimulation of collagen production in the cells from the immature and adolescent animals (p < 0.05 for all comparisons) but had less effect on adult cells. These findings suggest that skeletal maturity may influence ACL cells' metabolic activity, apoptosis, collagen production, and response to PRP.
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Affiliation(s)
| | | | - M. M. Murray
- Corresponding author: Martha Meaney Murray, MD. (), Department of Orthopaedic, Surgery, Children’s Hospital of Boston, 300 Longwood Ave., Boston, MA 02115 USA, Phone: 617 355 7132; Fax: 617 730 0459
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