201
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Wang X, Li YG, Du Y, Zhu JY, Li Z. The Research of Acellular Pancreatic Bioscaffold as a Natural 3-Dimensional Platform In Vitro. Pancreas 2018; 47:1040-1049. [PMID: 30086100 DOI: 10.1097/mpa.0000000000001123] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of the study was to investigate the biochemical and functional properties of a rat acellular pancreatic bioscaffolds (APBs). METHODS Fresh pancreata from 10 rats were soaked and perfused through portal veins using Easy-Load Digital Drive peristaltic pumps. The histological structure, extracellular matrix composition, and the DNA content of the APBs were evaluated. Biocompatibility studies had also been performed. The proliferation and differentiation of AR42J pancreatic acinar cells were assessed. RESULTS The pancreatic tissue became translucent after decellularization. There were no visible vascular endothelial cells, cellular components, or cracked cellular debris. The extracellular matrix components were not decreased after decellularization (P > 0.05); however, the DNA content was decreased significantly (P < 0.05). The subcutaneous implantation sites showed low immunological response and low cytotoxicity around the APB. The proliferation rate was higher and the apoptosis rate was lower when AR42J cells were cultured on APB (P < 0.05). The gene expression and the protein expression were higher for the APB group (P < 0.001). CONCLUSIONS Our findings support the biological utility of whole pancreas APBs as biomaterial scaffolds, which provides an improved approach for regenerative medicine.
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Affiliation(s)
| | - Yue-Guang Li
- Department of Hepatobiliary Surgery, Nankai Hospital
| | - Yue Du
- Department of Public Health, Tianjin Medical University, Tianjin
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202
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McClure MJ, Cohen DJ, Ramey AN, Bivens CB, Mallu S, Isaacs JE, Imming E, Huang YC, Sunwoo M, Schwartz Z, Boyan BD. Decellularized Muscle Supports New Muscle Fibers and Improves Function Following Volumetric Injury. Tissue Eng Part A 2018; 24:1228-1241. [DOI: 10.1089/ten.tea.2017.0386] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
Affiliation(s)
- Michael J. McClure
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - David J. Cohen
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - Allison N. Ramey
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia
| | - Caroline B. Bivens
- Department of School of Art, Virginia Commonwealth University, Richmond, Virginia
| | - Satya Mallu
- Department of Orthopaedic Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Jonathan E. Isaacs
- Department of Orthopaedic Surgery, Virginia Commonwealth University, Richmond, Virginia
| | - Emily Imming
- MTF Biologics, Musculoskeletal Transplant Foundation, Edison, New Jersey
| | - Yen-Chen Huang
- MTF Biologics, Musculoskeletal Transplant Foundation, Edison, New Jersey
| | - MoonHae Sunwoo
- MTF Biologics, Musculoskeletal Transplant Foundation, Edison, New Jersey
| | - Zvi Schwartz
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia
- Department of Periodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas
| | - Barbara D. Boyan
- Department of Biomedical Engineering, Virginia Commonwealth University, Richmond, Virginia
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia
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203
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Wang Y, Papagerakis S, Faulk D, Badylak SF, Zhao Y, Ge L, Qin M, Papagerakis P. Extracellular Matrix Membrane Induces Cementoblastic/Osteogenic Properties of Human Periodontal Ligament Stem Cells. Front Physiol 2018; 9:942. [PMID: 30072915 PMCID: PMC6058254 DOI: 10.3389/fphys.2018.00942] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 06/26/2018] [Indexed: 01/09/2023] Open
Abstract
Objective: Periodontitis affects nearly 90% of adults over the age of 70, resulting to periodontal tissue infection, destruction, and ultimately tooth loss. Guided tissue regeneration (GTR) is a method widely used to treat severe periodontal disease, and involves placement of an occlusive barrier to facilitate regeneration of the damaged area by periodontal ligament stem cells (PDLSCs). In this study, we evaluate natural extracellular matrix (ECM) as a scaffold material to provide a suitable microenvironment to support the proliferation, differentiation, and tissue-regenerating properties of PDLSCs. Design: The viability, proliferation, apoptosis, and migration of PDLSCs cultured on ECM membrane, that was isolated from porcine urinary bladders, were compared with those cultured on type I collagen membrane, a commonly used scaffold in GTR. To evaluate the effects of ECM vs. type I collagen on the tissue-regenerating properties of PDLSCs, the bio-attachment and cementoblastic/osteogenic differentiation of PDLSCs were evaluated. Results: Incubation of PDLSCs with ECM resulted in increased viability, proliferation, and reduced apoptosis, compared with type I collagen treated PDLSCs. Co-culture with ECM membrane also increased the migration and bio-attachment of PDLSCs. Incubation of PDLSCs with ECM membrane increased expression of the cementoblastic/osteogenic differentiation markers BSP, RUNX2, ALP, OPN, OCN, and periostin. Conclusion: ECM membrane enhances the proliferation and regenerative properties of PDLSCs, indicating that ECM membrane can serve as a suitable scaffold in the application of GTR to treat periodontal disease.
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Affiliation(s)
- Yuanyuan Wang
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Silvana Papagerakis
- Department of Surgery, College of Medicine, University of Saskatchewan, Saskatoon, SK, Canada.,Department of Otolaryngology, Medical School, University of Michigan, Ann Arbor, MI, United States
| | - Denver Faulk
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA, United States.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, United States
| | - Yuming Zhao
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Lihong Ge
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Man Qin
- Department of Pediatric Dentistry, School and Hospital of Stomatology, Peking University, Beijing, China
| | - Petros Papagerakis
- Colleges of Dentistry and Biomedical Engineering, Toxicology, Pharmacy, Nutrition, Anatomy and Cell Biology, University of Saskatchewan, Saskatoon, SK, Canada.,Department of Orthodontics and Pediatric Dentistry, School of Dentistry, University of Michigan, Ann Arbor, MI, United States
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204
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Larouche J, Sheoran S, Maruyama K, Martino MM. Immune Regulation of Skin Wound Healing: Mechanisms and Novel Therapeutic Targets. Adv Wound Care (New Rochelle) 2018; 7:209-231. [PMID: 29984112 PMCID: PMC6032665 DOI: 10.1089/wound.2017.0761] [Citation(s) in RCA: 322] [Impact Index Per Article: 53.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2017] [Accepted: 12/12/2017] [Indexed: 12/17/2022] Open
Abstract
Significance: The immune system plays a central role in orchestrating the tissue healing process. Hence, controlling the immune system to promote tissue repair and regeneration is an attractive approach when designing regenerative strategies. This review discusses the pathophysiology of both acute and chronic wounds and possible strategies to control the immune system to accelerate chronic wound closure and promote skin regeneration (scar-less healing) of acute wounds. Recent Advances: Recent studies have revealed the key roles of various immune cells and immune mediators in skin repair. Thus, immune components have been targeted to promote chronic wound repair or skin regeneration and several growth factors, cytokines, and biomaterials have shown promising results in animal models. However, these novel strategies are often struggling to meet efficacy standards in clinical trials, partly due to inadequate drug delivery systems and safety concerns. Critical Issues: Excess inflammation is a major culprit in the dysregulation of normal wound healing, and further limiting inflammation effectively reduces scarring. However, current knowledge is insufficient to efficiently control inflammation and specific immune cells. This is further complicated by inadequate drug delivery methods. Future Directions: Improving our understanding of the molecular pathways through which the immune system controls the wound healing process could facilitate the design of novel regenerative therapies. Additionally, better delivery systems may make current and future therapies more effective. To promote the entry of current regenerative strategies into clinical trials, more evidence on their safety, efficacy, and cost-effectiveness is also needed.
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Affiliation(s)
- Jacqueline Larouche
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
| | - Sumit Sheoran
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
| | - Kenta Maruyama
- WPI Immunology Frontier Research Center, Osaka University, Osaka, Japan
| | - Mikaël M. Martino
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria, Australia
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205
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Zhu Y, Hideyoshi S, Jiang H, Matsumura Y, Dziki JL, LoPresti ST, Huleihel L, Faria GNF, Fuhrman LC, Lodono R, Badylak SF, Wagner WR. Injectable, porous, biohybrid hydrogels incorporating decellularized tissue components for soft tissue applications. Acta Biomater 2018; 73:112-126. [PMID: 29649634 PMCID: PMC5985206 DOI: 10.1016/j.actbio.2018.04.003] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 03/07/2018] [Accepted: 04/02/2018] [Indexed: 12/16/2022]
Abstract
Biodegradable injectable hydrogels have been extensively studied and evaluated in various medical applications such as for bulking agents, drug delivery reservoirs, temporary barriers, adhesives, and cell delivery matrices. Where injectable hydrogels are intended to facilitate a healing response, it may be desirable to encourage rapid cellular infiltration into the hydrogel volume from the tissue surrounding the injection site. In this study, we developed a platform technique to rapidly form pores in a thermally responsive injectable hydrogel, poly(NIPAAm-co-VP-co-MAPLA) by using mannitol particles as porogens. In a rat hindlimb muscle injection model, hydrogels incorporating porosity had significantly accelerated cellular infiltration. To influence the inflammatory response to the injected hydrogel, enzymatically digested urinary bladder matrix (UBM) was mixed with the solubilized hydrogel. The presence of UBM was associated with greater polarization of the recruited macrophage population to the M2 phenotype, indicating a more constructive foreign body response. The hybrid hydrogel positively affected the wound healing outcomes of defects in rabbit adipose tissue with negligible inflammation and fibrosis, whereas scar formation and chronic inflammation were observed with autotransplantation and in saline injected groups. These results demonstrate the value of combining the effects of promoting cell infiltration and mediating the foreign body response for improved biomaterials options soft tissue defect filling applications. STATEMENT OF SIGNIFICANCE Our objective was to develop a fabrication process to create porous injectable hydrogels incorporating decellularized tissue digest material. This new hydrogel material was expected to exhibit faster cellular infiltration and a greater extent of pro-M2 macrophage polarization compared to control groups not incorporating each of the functional components. Poly(NIPAAm-co-VP-co-MAPLA) was chosen as the representative thermoresponsive hydrogel, and mannitol particles and digested urinary bladder matrix (UBM) were selected as the porogen and the bioactive decellularized material components respectively. In rat hindlimb intramuscular injection models, this new hydrogel material induced more rapid cellular infiltration and a greater extent of M2 macrophage polarization compared to control groups not incorporating all of the functional components. The hybrid hydrogel positively affected the wound healing outcomes of defects in rabbit adipose tissue with negligible inflammation and fibrosis, whereas scar formation and chronic inflammation were observed with autotransplantation and in saline injected groups. The methodology of this report provides a straightforward and convenient mechanism to promote cell infiltration and mediate foreign body response in injectable hydrogels for soft tissue applications. We believe that the readership of Acta Biomaterialia will find the work of interest both for its specific results and general translatability of the findings.
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Affiliation(s)
- Yang Zhu
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Sato Hideyoshi
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Hongbin Jiang
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Yasumoto Matsumura
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Jenna L Dziki
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Samuel T LoPresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Luai Huleihel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Gabriela N F Faria
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Leah C Fuhrman
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Ricardo Lodono
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - William R Wagner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA; Department of Chemical Engineering, University of Pittsburgh, Pittsburgh, PA 15219, USA.
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206
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Skliar M, Chernyshev VS, Belnap DM, Sergey GV, Al-Hakami SM, Bernard PS, Stijleman IJ, Rachamadugu R. Membrane proteins significantly restrict exosome mobility. Biochem Biophys Res Commun 2018; 501:1055-1059. [PMID: 29777705 DOI: 10.1016/j.bbrc.2018.05.107] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Accepted: 05/15/2018] [Indexed: 11/24/2022]
Abstract
Exosomes are membrane nanovesicles implicated in cell-to-cell signaling in which they transfer their molecular cargo from the parent to the recipient cells. This role essentially depends on the exosomes' small size, which is the prerequisite for their rapid migration through the crowded extracellular matrix and into and out of circulation. Here we report much lower exosome mobility than expected from the size of their vesicles, implicate membrane proteins in a substantially impeded rate of migration, and suggest an approach to quantifying the impact. The broadly distributed excess hydrodynamic resistance provided by surface proteins produces a highly heterogeneous and microenvironment-dependent hindrance to exosome mobility. The implications of the findings on exosome-mediated signaling are discussed.
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Affiliation(s)
- Mikhail Skliar
- Chemical Engineering, University of Utah, 50 S. Central Campus Dr, Salt Lake City, UT, 84112, USA; The Nano Institute of Utah, University of Utah, 36 S. Wasatch Dr, Salt Lake City, UT, 84112, USA.
| | - Vasiliy S Chernyshev
- Center for Translational Biomedicine, Skolkovo Institute of Science and Technology, Skolkovo Innovation Center, Building 3, Moscow, 143026, Russia; Biopharmaceutical Cluster 'Northern', Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russia
| | - David M Belnap
- Biochemistry and Biology Departments, University of Utah, 15 N Medical Dr, Salt Lake City, UT, 84112, USA
| | - German V Sergey
- Biopharmaceutical Cluster 'Northern', Moscow Institute of Physics and Technology, Institutsky per. 9/7, Dolgoprudny, Moscow Region, 141700, Russia
| | - Samer M Al-Hakami
- Chemical Engineering, University of Utah, 50 S. Central Campus Dr, Salt Lake City, UT, 84112, USA
| | - Philip S Bernard
- Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope, Salt Lake City, UT, 84112, USA; Department of Pathology, University of Utah, 15 North Medical Dr, Salt Lake City, UT, 84112, USA
| | - Inge J Stijleman
- Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope, Salt Lake City, UT, 84112, USA
| | - Rakesh Rachamadugu
- Huntsman Cancer Institute, University of Utah, 2000 Circle of Hope, Salt Lake City, UT, 84112, USA
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207
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LoPresti ST, Brown BN. Effect of Source Animal Age upon Macrophage Response to Extracellular Matrix Biomaterials. ACTA ACUST UNITED AC 2018; 1:57-66. [PMID: 30101208 DOI: 10.1016/j.regen.2018.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Extracellular matrix biomaterials have been shown to promote constructive remodeling in many preclinical and clinical applications. This response has been associated with the promotion of a timely switch from pro-inflammatory (M1) to anti-inflammatory (M2) macrophages. A previous study has shown that this beneficial response is lost when these biomaterials are derived from aged animals. This study examined the impact of small intestine submucosa (SIS) derived from 12, 26 and 52 week old pigs on the phenotype and function of bone marrow macrophages derived either from 2 or 18 month old mice. Results showed that 52 week old SIS promoted less iNOS in 2 month macrophages and Fizz1 expression in 2 and 18 month compared to 12 week SIS. Pro-inflammatory cytokine exposure to 52 week SIS-treated macrophages resulted in higher iNOS in 18 month macrophages and reduced MHC-II expression in 2 month macrophages, as well as reduced nitric oxide production in comparison to 12 week SIS. These results indicate that ECM derived from aged animals promotes an altered macrophage phenotype compared to young controls. This suggests that sourcing of ECM from young donors is important to preserve constructive remodeling outcomes of ECM biomaterials. Alteration of macrophage phenotype by aged ECM also raises the hypothesis that alterations in aged ECM may play a role in immune dysfunction in aged individuals.
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Affiliation(s)
- Samuel T LoPresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States
| | - Bryan N Brown
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Pittsburgh, PA 15219, United States.,Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, 3700 O'Hara Street, Pittsburgh, PA 15260, United States.,Department of Obstetrics, Gynecology and Reproductive Sciences, University of Pittsburgh School of Medicine, University of Pittsburgh, 300 Halket Street, Pittsburgh, PA 15213, United States
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208
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Keane TJ, Horejs CM, Stevens MM. Scarring vs. functional healing: Matrix-based strategies to regulate tissue repair. Adv Drug Deliv Rev 2018; 129:407-419. [PMID: 29425770 DOI: 10.1016/j.addr.2018.02.002] [Citation(s) in RCA: 71] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Revised: 12/23/2017] [Accepted: 02/05/2018] [Indexed: 12/11/2022]
Abstract
All vertebrates possess mechanisms to restore damaged tissues with outcomes ranging from regeneration to scarring. Unfortunately, the mammalian response to tissue injury most often culminates in scar formation. Accounting for nearly 45% of deaths in the developed world, fibrosis is a process that stands diametrically opposed to functional tissue regeneration. Strategies to improve wound healing outcomes therefore require methods to limit fibrosis. Wound healing is guided by precise spatiotemporal deposition and remodelling of the extracellular matrix (ECM). The ECM, comprising the non-cellular component of tissues, is a signalling depot that is differentially regulated in scarring and regenerative healing. This Review focuses on the importance of the native matrix components during mammalian wound healing alongside a comparison to scar-free healing and then presents an overview of matrix-based strategies that attempt to exploit the role of the ECM to improve wound healing outcomes.
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209
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Fetal extracellular matrix nerve wraps locally improve peripheral nerve remodeling after complete transection and direct repair in rat. Sci Rep 2018. [PMID: 29540763 PMCID: PMC5852088 DOI: 10.1038/s41598-018-22628-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
In peripheral nerve (PN) injuries requiring surgical repair, as in PN transection, cellular and ECM remodeling at PN epineurial repair sites is hypothesized to reduce PN functional outcomes by slowing, misdirecting, or preventing axons from regrowing appropriately across the repair site. Herein this study reports on deriving and analyzing fetal porcine urinary bladder extracellular matrix (fUB-ECM) by vacuum assisted decellularization, fabricating fUBM-ECM nerve wraps, and testing fUB-ECM nerve wrap biocompatibility and bioactivity in a trigeminal, infraorbital nerve (ION) branch transection and direct end-to-end repair model in rat. FUB-ECM nerve wraps significantly improved epi- and endoneurial organization and increased both neovascularization and growth associated protein-43 (GAP-43) expression at PN repair sites, 28-days post surgery. However, the number of neurofilament positive axons, remyelination, and whisker-evoked response properties of ION axons were unaltered, indicating improved tissue remodeling per se does not predict axon regrowth, remyelination, and the return of mechanoreceptor cortical signaling. This study shows fUB-ECM nerve wraps are biocompatible, bioactive, and good experimental and potentially clinical devices for treating epineurial repairs. Moreover, this study highlights the value provided by precise, analytic models, like the ION repair model, in understanding how PN tissue remodeling relates to axonal regrowth, remyelination, and axonal response properties.
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210
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Spang MT, Christman KL. Extracellular matrix hydrogel therapies: In vivo applications and development. Acta Biomater 2018; 68:1-14. [PMID: 29274480 DOI: 10.1016/j.actbio.2017.12.019] [Citation(s) in RCA: 186] [Impact Index Per Article: 31.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2017] [Revised: 11/09/2017] [Accepted: 12/15/2017] [Indexed: 12/12/2022]
Abstract
Decellularized extracellular matrix (ECM) has been widely used for tissue engineering applications and is becoming increasingly versatile as it can take many forms, including patches, powders, and hydrogels. Following additional processing, decellularized ECM can form an inducible hydrogel that can be injected, providing for new minimally-invasive procedure opportunities. ECM hydrogels have been derived from numerous tissue sources and applied to treat many disease models, such as ischemic injuries and organ regeneration or replacement. This review will focus on in vivo applications of ECM hydrogels and functional outcomes in disease models, as well as discuss considerations for clinical translation. STATEMENT OF SIGNIFICANCE Extracellular matrix (ECM) hydrogel therapies are being developed to treat diseased or damaged tissues and organs throughout the body. Many ECM hydrogels are progressing from in vitro models to in vivo biocompatibility studies and functional models. There is significant potential for clinical translation of these therapies since one ECM hydrogel therapy is already in a Phase 1 clinical trial.
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211
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Smolar J, Horst M, Sulser T, Eberli D. Bladder regeneration through stem cell therapy. Expert Opin Biol Ther 2018; 18:525-544. [DOI: 10.1080/14712598.2018.1439013] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Jakub Smolar
- Department of Urology, University Hospital Zurich, Schlieren, Switzerland
| | - Maya Horst
- Department of Urology, University Children’s Hospital Zurich, Zurich, Switzerland
| | - Tulio Sulser
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
| | - Daniel Eberli
- Department of Urology, University Hospital Zurich, Zurich, Switzerland
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212
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Lin Z, McClure MJ, Zhao J, Ramey AN, Asmussen N, Hyzy SL, Schwartz Z, Boyan BD. MicroRNA Contents in Matrix Vesicles Produced by Growth Plate Chondrocytes are Cell Maturation Dependent. Sci Rep 2018; 8:3609. [PMID: 29483516 PMCID: PMC5826934 DOI: 10.1038/s41598-018-21517-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2017] [Accepted: 02/06/2018] [Indexed: 01/01/2023] Open
Abstract
Chondrocytes at different maturation states in the growth plate produce matrix vesicles (MVs), membrane organelles found in the extracellular matrix, with a wide range of contents, such as matrix processing enzymes and receptors for hormones. We have shown that MVs harvested from growth zone (GC) chondrocyte cultures contain abundant small RNAs, including miRNAs. Here, we determined whether RNA also exists in MVs produced by less mature resting zone (RC) chondrocytes and, if so, whether it differs from the RNA in MVs produced by GC cells. Our results showed that RNA, small RNA specifically, was present in RC-MVs, and it was well-protected from RNase by the phospholipid membrane. A group of miRNAs was enriched in RC-MVs compared RC-cells, suggesting that miRNAs are selectively packaged into MVs. High throughput array and RNA sequencing showed that ~39% miRNAs were differentially expressed between RC-MVs and GC-MVs. Individual RT-qPCR also confirmed that miR-122-5p and miR-150-5p were expressed at significantly higher levels in RC-MVs compared to GC-MVs. This study showed that growth plate chondrocytes at different differentiation stages produce different MVs with different miRNA contents, further supporting extracellular vesicle miRNAs play a role as "matrisomes" that mediate the cell-cell communication in cartilage and bone development.
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Affiliation(s)
- Zhao Lin
- Department of Periodontics, School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Michael J McClure
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Junjun Zhao
- Department of Periodontics, School of Dentistry, Virginia Commonwealth University, Richmond, VA, USA
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
- General Dentistry, 9th People's Hospital, College of Stomatology, Shanghai JiaoTong University School of Medicine, Shanghai, China
| | - Allison N Ramey
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Niels Asmussen
- School of Integrated Life Science, Virginia Commonwealth University, Richmond, VA, USA
| | - Sharon L Hyzy
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
| | - Zvi Schwartz
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA
- Department of Periodontics, The University of Texas Health Science Center at San Antonio, San Antonio, TX, USA
| | - Barbara D Boyan
- Department of Biomedical Engineering, School of Engineering, Virginia Commonwealth University, Richmond, VA, USA.
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, GA, USA.
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213
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Aoki FG, Moriya HT. Mechanical Evaluation of Tracheal Grafts on Different Scales. Artif Organs 2017; 42:476-483. [PMID: 29226358 DOI: 10.1111/aor.13063] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 09/18/2017] [Accepted: 09/28/2017] [Indexed: 12/12/2022]
Abstract
Tissue engineered (or bioengineered) tracheas are alternative options under investigation when the resection with end-to-end anastomosis cannot be performed. One approach to develop bioengineered tracheas is a complex process that involves the use of decellularized tissue scaffolds, followed by recellularization in custom-made tracheal bioreactors. Tracheas withstand pressure variations and their biomechanics are of great importance so that they do not collapse during respiration, although there has been no preferred method of mechanical assay of tracheas among several laboratories over the years. These methods have been performed in segments or whole tracheas and in different species of mammals. This article aims to present some methods used by different research laboratories to evaluate the mechanics of tracheal grafts and presents the importance of the tracheal biomechanics in both macro and micro scales. If bioengineered tracheas become a reality in hospitals in the next few years, the standardization of biomechanical parameters will be necessary for greater consistency of results before transplantations.
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Affiliation(s)
- Fabio Gava Aoki
- Biomedical Engineering Laboratory, University of São Paulo, Escola Politécnica, São Paulo, Brazil
| | - Henrique Takachi Moriya
- Biomedical Engineering Laboratory, University of São Paulo, Escola Politécnica, São Paulo, Brazil
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214
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Ghuman H, Gerwig M, Nicholls FJ, Liu JR, Donnelly J, Badylak SF, Modo M. Long-term retention of ECM hydrogel after implantation into a sub-acute stroke cavity reduces lesion volume. Acta Biomater 2017; 63:50-63. [PMID: 28917705 DOI: 10.1016/j.actbio.2017.09.011] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2017] [Revised: 09/05/2017] [Accepted: 09/11/2017] [Indexed: 12/29/2022]
Abstract
Salvaging or functional replacement of damaged tissue caused by stroke in the brain remains a major therapeutic challenge. In situ gelation and retention of a hydrogel bioscaffold composed of 8mg/mL extracellular matrix (ECM) can induce a robust invasion of cells within 24h and potentially promote a structural remodeling to replace lost tissue. Herein, we demonstrate a long-term retention of ECM hydrogel within the lesion cavity. A decrease of approximately 32% of ECM volume is observed over 12weeks. Lesion volume, as measured by magnetic resonance imaging and histology, was reduced by 28%, but a battery of behavioral tests (bilateral asymmetry test; footfault; rotameter) did not reveal a therapeutic or detrimental effect of the hydrogel. Glial scarring and peri-infarct astrocytosis were equivalent between untreated and treated animals, potentially indicating that permeation into host tissue is required to exert therapeutic effects. These results reveal a marked difference of biodegradation of ECM hydrogel in the stroke-damaged brain compared to peripheral soft tissue repair. Further exploration of these structure-function relationships is required to achieve a structural remodeling of the implanted hydrogel, as seen in peripheral tissues, to replace lost tissue and promote behavioral recovery. STATEMENT OF SIGNIFICANCE In situ gelation of ECM is essential for its retention within a tissue cavity. The brain is a unique environment with restricted access that necessitates image-guided delivery through a thin needle to access tissue cavities caused by stroke, as well as other conditions, such as traumatic brain injury or glioma resection. Knowledge about a brain tissue response to implanted hydrogels remains limited, especially in terms of long-term effects and potential impact on behavioral function. We here address the long-term retention of hydrogel within the brain environment, its impact on behavioral function, as well as its ability to reduce further tissue deformation caused by stroke. This study highlights considerable differences in the brain's long-term response to an ECM hydrogel compared to peripheral soft tissue. It underlines the importance of understanding the effect of the structural presence of a hydrogel within a cavity upon host brain tissue and behavioral function. As demonstrated herein, ECM hydrogel can fill a cavity long-term to reduce further progression of the cavity, while potentially serving as a reservoir for local drug or cell delivery.
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Affiliation(s)
- Harmanvir Ghuman
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Madeline Gerwig
- Department of Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
| | - Francesca J Nicholls
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA
| | - Jessie R Liu
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Julia Donnelly
- Department of Biological Sciences, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michel Modo
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Radiology, University of Pittsburgh, Pittsburgh, PA, USA.
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215
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Rilla K, Mustonen AM, Arasu UT, Härkönen K, Matilainen J, Nieminen P. Extracellular vesicles are integral and functional components of the extracellular matrix. Matrix Biol 2017; 75-76:201-219. [PMID: 29066152 DOI: 10.1016/j.matbio.2017.10.003] [Citation(s) in RCA: 129] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2017] [Revised: 10/10/2017] [Accepted: 10/16/2017] [Indexed: 12/18/2022]
Abstract
Extracellular vesicles (EV) are small plasma membrane-derived particles released into the extracellular space by virtually all cell types. Recently, EV have received increased interest because of their capability to carry nucleic acids, proteins, lipids and signaling molecules and to transfer their cargo into the target cells. Less attention has been paid to their role in modifying the composition of the extracellular matrix (ECM), either directly or indirectly via regulating the ability of target cells to synthesize or degrade matrix molecules. Based on recent results, EV can be considered one of the structural and functional components of the ECM that participate in matrix organization, regulation of cells within it, and in determining the physical properties of soft connective tissues, bone, cartilage and dentin. This review addresses the relevance of EV as specific modulators of the ECM, such as during the assembly and disassembly of the molecular network, signaling through the ECM and formation of niches suitable for tissue regeneration, inflammation and tumor progression. Finally, we assess the potential of these aspects of EV biology to translational medicine.
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Affiliation(s)
- Kirsi Rilla
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland.
| | - Anne-Mari Mustonen
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland
| | - Uma Thanigai Arasu
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland
| | - Kai Härkönen
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland
| | - Johanna Matilainen
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland
| | - Petteri Nieminen
- Faculty of Health Sciences, School of Medicine, Institute of Biomedicine, University of Eastern Finland, P.O. Box 1627, FI 70211, Kuopio, Finland
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216
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van der Merwe Y, Steketee MB. Extracellular Vesicles: Biomarkers, Therapeutics, and Vehicles in the Visual System. CURRENT OPHTHALMOLOGY REPORTS 2017; 5:276-282. [PMID: 29399421 PMCID: PMC5780545 DOI: 10.1007/s40135-017-0153-0] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
PURPOSE We discuss recent advances in extracellular vesicle (EV) technology as biomarkers, therapeutics, and drug delivery vehicles in the visual system with an emphasis on the retina. RECENT FINDINGS Retinal cell-type specific EVs can be detected in the blood and in the aqueous humor and EV miRNA cargoes can be used diagnostically to predict retinal disease progression. Studies have now shown EVs can deliver bioactive miRNA and AAV cargoes to the inner retinal cell layers and, in some models, improve retinal ganglion cell (RGC) survival and axon regeneration. SUMMARY EV molecular profiles and cargoes are attractive biomarkers for retinal and optic nerve disease and trauma and EVs offer a safe and tunable platform for delivering therapies to ocular tissues. However, EVs are heterogeneous by nature with variable lipid membranes, cargoes, and biologic effects, warranting stringent characterization to understand how heterogeneous EV populations modulate positive tissue remodeling.
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Affiliation(s)
- Yolandi van der Merwe
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15260 USA
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA 15216 USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219 USA
| | - Michael B. Steketee
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA 15216 USA
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, PA 15219 USA
- Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA 15261 USA
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217
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Zarrintaj P, Moghaddam AS, Manouchehri S, Atoufi Z, Amiri A, Amirkhani MA, Nilforoushzadeh MA, Saeb MR, Hamblin MR, Mozafari M. Can regenerative medicine and nanotechnology combine to heal wounds? The search for the ideal wound dressing. Nanomedicine (Lond) 2017; 12:2403-2422. [DOI: 10.2217/nnm-2017-0173] [Citation(s) in RCA: 135] [Impact Index Per Article: 19.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Skin is the outermost covering of the human body and at the same time the largest organ comprising 15% of body weight and 2 m2 surface area. Skin plays a key role as a barrier against the outer environment depending on its thickness, color and structure, which differ from one site to another. The four major types of problematic wounds include ulcers (diabetic, venous, pressure) and burn wounds. Developing novel dressings helps us to improve the wound healing process in difficult patients. Recent advances in regenerative medicine and nanotechnology are revolutionizing the field of wound healing. Antimicrobial activity, exogenous cell therapy, growth factor delivery, biodegradable and biocompatible matrix construction, all play a role in hi-tech dressing design. In the present review, we discuss how the principles of regenerative medicine and nanotechnology can be combined in innovative wound dressings.
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Affiliation(s)
- Payam Zarrintaj
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | | | - Saeed Manouchehri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Zhaleh Atoufi
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | - Anahita Amiri
- School of Chemical Engineering, College of Engineering, University of Tehran, Tehran, Iran
| | | | | | - Mohammad Reza Saeb
- Department of Resin & Additives, Institute for Color Science & Technology, P.O. Box 16765–654, Tehran, Iran
| | - Michael R Hamblin
- Wellman Center for Photomedicine, Massachusetts General Hospital, Boston, MA 02114, USA
- Department of Dermatology, Harvard Medical School, Boston, MA 02115, USA
- Harvard-MIT Division of Health Sciences & Technology, Cambridge, MA 02139, USA
| | - Masoud Mozafari
- Nanotechnology & Advanced Materials Department, Materials & Energy Research Center (MERC), Tehran, Iran
- Cellular & Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
- Department of Tissue Engineering & Regenerative Medicine, Faculty of Advanced Technologies in Medicine, Iran University of Medical Sciences, Tehran, Iran
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218
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Dziki JL, Huleihel L, Scarritt ME, Badylak SF. Extracellular Matrix Bioscaffolds as Immunomodulatory Biomaterials<sup/>. Tissue Eng Part A 2017; 23:1152-1159. [PMID: 28457179 PMCID: PMC6112165 DOI: 10.1089/ten.tea.2016.0538] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2016] [Accepted: 04/18/2017] [Indexed: 01/03/2023] Open
Abstract
Suppression of the recipient immune response is a common component of tissue and organ transplantation strategies and has also been used as a method of mitigating the inflammatory and scar tissue response to many biomaterials. It is now recognized, however, that long-term functional tissue replacement not only benefits from an intact host immune response but also depends upon such a response. The present article reviews the limitations associated with the traditionally held view of avoiding the immune response, the ability of acellular biologic scaffold materials to modulate the host immune response and promote a functional tissue replacement outcome, and current strategies within the fields of tissue engineering and biomaterials to develop immune-responsive and immunoregulatory biomaterials.
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Affiliation(s)
- Jenna L. Dziki
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Luai Huleihel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Michelle E. Scarritt
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Stephen F. Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
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219
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Hussey GS, Cramer MC, Badylak SF. Extracellular Matrix Bioscaffolds for Building Gastrointestinal Tissue. Cell Mol Gastroenterol Hepatol 2017; 5:1-13. [PMID: 29276748 PMCID: PMC5736871 DOI: 10.1016/j.jcmgh.2017.09.004] [Citation(s) in RCA: 45] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 09/08/2017] [Indexed: 12/14/2022]
Abstract
Regenerative medicine is a rapidly advancing field that uses principles of tissue engineering, developmental biology, stem cell biology, immunology, and bioengineering to reconstruct diseased or damaged tissues. Biologic scaffolds composed of extracellular matrix have shown great promise as an inductive substrate to facilitate the constructive remodeling of gastrointestinal (GI) tissue damaged by neoplasia, inflammatory bowel disease, and congenital or acquired defects. The present review summarizes the preparation and use of extracellular matrix scaffolds for bioengineering of the GI tract, identifies significant advances made in regenerative medicine for the reconstruction of functional GI tissue, and describes an emerging therapeutic approach.
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Affiliation(s)
- George S. Hussey
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Surgery, School of Medicine, University of Pittsburgh Medical Center Presbyterian Hospital, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Madeline C. Cramer
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Stephen F. Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
- Department of Surgery, School of Medicine, University of Pittsburgh Medical Center Presbyterian Hospital, University of Pittsburgh, Pittsburgh, Pennsylvania
- Correspondence Address correspondence to: Stephen F. Badylak, DVM, PhD, MD, McGowan Institute for Regenerative Medicine, University of Pittsburgh, 450 Technology Drive, Suite 300, Pittsburgh, Pennsylvania 15219-3110. fax: (412) 624-5256.McGowan Institute for Regenerative MedicineUniversity of Pittsburgh450 Technology Drive, Suite 300PittsburghPennsylvania15219-3110
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220
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The extracellular matrix of the gastrointestinal tract: a regenerative medicine platform. Nat Rev Gastroenterol Hepatol 2017; 14:540-552. [PMID: 28698662 DOI: 10.1038/nrgastro.2017.76] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
The synthesis and secretion of components that constitute the extracellular matrix (ECM) by resident cell types occur at the earliest stages of embryonic development, and continue throughout life in both healthy and diseased physiological states. The ECM consists of a complex mixture of insoluble and soluble functional components that are arranged in a tissue-specific 3D ultrastructure, and it regulates numerous biological processes, including angiogenesis, innervation and stem cell differentiation. Owing to its composition and influence on embryonic development, as well as cellular and organ homeostasis, the ECM is an ideal therapeutic substrate for the repair of damaged or diseased tissues. Biologic scaffold materials that are composed of ECM have been used in various surgical and tissue-engineering applications. The gastrointestinal (GI) tract presents distinct challenges, such as diverse pH conditions and the requirement for motility and nutrient absorption. Despite these challenges, the use of homologous and heterologous ECM bioscaffolds for the focal or segmental reconstruction and regeneration of GI tissue has shown promise in early preclinical and clinical studies. This Review discusses the importance of tissue-specific ECM bioscaffolds and highlights the major advances that have been made in regenerative medicine strategies for the reconstruction of functional GI tissues.
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221
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Costa A, Naranjo JD, Londono R, Badylak SF. Biologic Scaffolds. Cold Spring Harb Perspect Med 2017; 7:cshperspect.a025676. [PMID: 28320826 DOI: 10.1101/cshperspect.a025676] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Biologic scaffold materials composed of allogeneic or xenogeneic extracellular matrix are commonly used for the repair and functional reconstruction of injured and missing tissues. These naturally occurring bioscaffolds are manufactured by the removal of the cellular content from source tissues while preserving the structural and functional molecular units of the remaining extracellular matrix (ECM). The mechanisms by which these bioscaffolds facilitate constructive remodeling and favorable clinical outcomes include release or creation of effector molecules that recruit endogenous stem/progenitor cells to the site of scaffold placement and modulation of the innate immune response, specifically the activation of an anti-inflammatory macrophage phenotype. The methods by which ECM biologic scaffolds are prepared, the current understanding of in vivo scaffold remodeling, and the associated clinical outcomes are discussed in this article.
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Affiliation(s)
- Alessandra Costa
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219
| | - Juan Diego Naranjo
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219
| | - Ricardo Londono
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219.,School of Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, Pittsburgh, Pennsylvania 15219.,Department of Surgery, University of Pittsburgh, Pittsburgh, Pennsylvania 15219.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania 15219
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222
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Jang J. 3D Bioprinting and In Vitro Cardiovascular Tissue Modeling. Bioengineering (Basel) 2017; 4:E71. [PMID: 28952550 PMCID: PMC5615317 DOI: 10.3390/bioengineering4030071] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Revised: 08/10/2017] [Accepted: 08/11/2017] [Indexed: 12/17/2022] Open
Abstract
Numerous microfabrication approaches have been developed to recapitulate morphologically and functionally organized tissue microarchitectures in vitro; however, the technical and operational limitations remain to be overcome. 3D printing technology facilitates the building of a construct containing biomaterials and cells in desired organizations and shapes that have physiologically relevant geometry, complexity, and micro-environmental cues. The selection of biomaterials for 3D printing is considered one of the most critical factors to achieve tissue function. It has been reported that some printable biomaterials, having extracellular matrix-like intrinsic microenvironment factors, were capable of regulating stem cell fate and phenotype. In particular, this technology can control the spatial positions of cells, and provide topological, chemical, and complex cues, allowing neovascularization and maturation in the engineered cardiovascular tissues. This review will delineate the state-of-the-art 3D bioprinting techniques in the field of cardiovascular tissue engineering and their applications in translational medicine. In addition, this review will describe 3D printing-based pre-vascularization technologies correlated with implementing blood perfusion throughout the engineered tissue equivalent. The described engineering method may offer a unique approach that results in the physiological mimicry of human cardiovascular tissues to aid in drug development and therapeutic approaches.
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Affiliation(s)
- Jinah Jang
- Department of Creative IT Engineering, Pohang University of Science and Technology (POSTECH), Pohang 37673, Kyungbuk, Korea.
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223
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Kim BS, Kim H, Gao G, Jang J, Cho DW. Decellularized extracellular matrix: a step towards the next generation source for bioink manufacturing. Biofabrication 2017; 9:034104. [DOI: 10.1088/1758-5090/aa7e98] [Citation(s) in RCA: 115] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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224
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Dziki JL, Keane TJ, Shaffiey S, Cognetti D, Turner N, Nagle D, Hackam D, Badylak S. Bioscaffold-mediated mucosal remodeling following short-segment colonic mucosal resection. J Surg Res 2017; 218:353-360. [PMID: 28985874 DOI: 10.1016/j.jss.2017.06.066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 06/13/2017] [Accepted: 06/19/2017] [Indexed: 02/07/2023]
Abstract
Precancerous or cancerous lesions of the gastrointestinal tract often require surgical resection via endomucosal resection. Although excision of the colonic mucosa is an effective cancer treatment, removal of large lesions is associated with high morbidity and complications including bleeding, perforation, fistula formation, and/or stricture, contributing to high clinical and economic costs and negatively impacting patient quality of life. The present study investigates the use of a biologic scaffold derived from extracellular matrix (ECM) to promote restoration of the colonic mucosa following short segment mucosal resection. Six healthy dogs were assigned to ECM-treated (tubular ECM scaffold) and mucosectomy only control groups following transanal full circumferential mucosal resection (4 cm in length). The temporal remodeling response was monitored using colonoscopy and biopsy collection. Animals were sacrificed at 6 and 10 wk, and explants were stained with hematoxylin and eosin (H&E), Alcian blue, and proliferating cell nuclear antigen (PCNA) to determine the temporal remodeling response. Both control animals developed stricture and bowel obstruction with no signs of neomucosal coverage after resection. ECM-treated animals showed an early mononuclear cell infiltrate (2 weeks post-surgery) which progressed to columnar epithelium and complex crypt structures nearly indistinguishable from normal colonic architecture by 6 weeks after surgery. ECM scaffold treatment restored colonic mucosa with appropriately located PCNA+ cells and goblet cells. The study shows that ECM scaffolds may represent a viable clinical option to prevent complications associated with endomucosal resection of cancerous lesions in the colon.
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Affiliation(s)
- Jenna L Dziki
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Timothy J Keane
- Department of Materials, Imperial College London, London, UK
| | - Shahab Shaffiey
- Division of Pediatric Surgery, Children's Hospital of Pittsburgh, Pittsburgh, Pennsylvania
| | - Dan Cognetti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Neill Turner
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania
| | - Deborah Nagle
- Division of Colon and Rectal Surgery, Beth Israel Deaconess Medical Center, Boston, Massachusetts
| | - David Hackam
- Department of Surgery, Johns Hopkins University, Baltimore, Maryland
| | - Stephen Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Bioengineering, University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania.
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225
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Huleihel L, Dziki JL, Bartolacci JG, Rausch T, Scarritt ME, Cramer MC, Vorobyov T, LoPresti ST, Swineheart IT, White LJ, Brown BN, Badylak SF. Macrophage phenotype in response to ECM bioscaffolds. Semin Immunol 2017; 29:2-13. [PMID: 28736160 DOI: 10.1016/j.smim.2017.04.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 04/25/2017] [Indexed: 01/14/2023]
Abstract
Macrophage presence and phenotype are critical determinants of the healing response following injury. Downregulation of the pro-inflammatory macrophage phenotype has been associated with the therapeutic use of bioscaffolds composed of extracellular matrix (ECM), but phenotypic characterization of macrophages has typically been limited to small number of non-specific cell surface markers or expressed proteins. The present study determined the response of both primary murine bone marrow derived macrophages (BMDM) and a transformed human mononuclear cell line (THP-1 cells) to degradation products of two different, commonly used ECM bioscaffolds; urinary bladder matrix (UBM-ECM) and small intestinal submucosa (SIS-ECM). Quantified cell responses included gene expression, protein expression, commonly used cell surface markers, and functional assays. Results showed that the phenotype elicited by ECM exposure (MECM) is distinct from both the classically activated IFNγ+LPS phenotype and the alternatively activated IL-4 phenotype. Furthermore, the BMDM and THP-1 macrophages responded differently to identical stimuli, and UBM-ECM and SIS-ECM bioscaffolds induced similar, yet distinct phenotypic profiles. The results of this study not only characterized an MECM phenotype that has anti-inflammatory traits but also showed the risks and challenges of making conclusions about the role of macrophage mediated events without consideration of the source of macrophages and the limitations of individual cell markers.
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Affiliation(s)
- Luai Huleihel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, PA, USA
| | - Jenna L Dziki
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Joseph G Bartolacci
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Theresa Rausch
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michelle E Scarritt
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, PA, USA
| | - Madeline C Cramer
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tatiana Vorobyov
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Biotechnology Engineering, Ort Braude College of Engineering, Karmiel, Israel
| | - Samuel T LoPresti
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Ilea T Swineheart
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Lisa J White
- School of Pharmacy, University of Nottingham, Nottingham, UK
| | - Bryan N Brown
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA; Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh, PA, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA; Department of Surgery, University of Pittsburgh, PA, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA.
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226
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Huleihel L, Bartolacci JG, Dziki JL, Vorobyov T, Arnold B, Scarritt ME, Pineda Molina C, LoPresti ST, Brown BN, Naranjo JD, Badylak SF. Matrix-Bound Nanovesicles Recapitulate Extracellular Matrix Effects on Macrophage Phenotype. Tissue Eng Part A 2017; 23:1283-1294. [PMID: 28580875 DOI: 10.1089/ten.tea.2017.0102] [Citation(s) in RCA: 74] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
The early macrophage response to biomaterials has been shown to be a critical and predictive determinant of downstream outcomes. When properly prepared, bioscaffolds composed of mammalian extracellular matrix (ECM) have been shown to promote a transition in macrophage behavior from a proinflammatory to a regulatory/anti-inflammatory phenotype, which in turn has been associated with constructive and functional tissue repair. The mechanism by which ECM bioscaffolds promote this phenotypic transition, however, is poorly understood. The present study shows that matrix-bound nanovesicles (MBV), a component of ECM bioscaffolds, are capable of recapitulating the macrophage activation effects of the ECM bioscaffold from which they are derived. MBV isolated from two different source tissues, porcine urinary bladder and small intestinal submucosa, were found to be enriched in miRNA125b-5p, 143-3p, and 145-5p. Inhibition of these miRNAs within macrophages was associated with a gene and protein expression profile more consistent with a proinflammatory rather than an anti-inflammatory/regulatory phenotype. MBV and their associated miRNA cargo appear to play a significant role in mediating the effects of ECM bioscaffolds on macrophage phenotype.
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Affiliation(s)
- Luai Huleihel
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,2 Department of Surgery, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Joseph G Bartolacci
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Jenna L Dziki
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 Department of Bioengineering, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Tatiana Vorobyov
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Brooke Arnold
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Michelle E Scarritt
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,2 Department of Surgery, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Catalina Pineda Molina
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 Department of Bioengineering, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Samuel T LoPresti
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 Department of Bioengineering, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Bryan N Brown
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 Department of Bioengineering, University of Pittsburgh , Pittsburgh, Pennsylvania.,4 Department of Obstetrics, Gynecology, and Reproductive Sciences, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Juan Diego Naranjo
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania
| | - Stephen F Badylak
- 1 McGowan Institute for Regenerative Medicine, University of Pittsburgh , Pittsburgh, Pennsylvania.,2 Department of Surgery, University of Pittsburgh , Pittsburgh, Pennsylvania.,3 Department of Bioengineering, University of Pittsburgh , Pittsburgh, Pennsylvania
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227
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Arasu UT, Kärnä R, Härkönen K, Oikari S, Koistinen A, Kröger H, Qu C, Lammi MJ, Rilla K. Human mesenchymal stem cells secrete hyaluronan-coated extracellular vesicles. Matrix Biol 2017; 64:54-68. [PMID: 28483644 DOI: 10.1016/j.matbio.2017.05.001] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2017] [Revised: 04/27/2017] [Accepted: 05/02/2017] [Indexed: 12/22/2022]
Abstract
Extracellular vesicles (EVs) secreted by stem cells are potential factors mediating tissue regeneration. They travel from bone marrow stem cells into damaged tissues, suggesting that they can repair tissue injuries without directly replacing parenchymal cells. We have discovered that hyaluronan (HA) synthesis is associated with the shedding of HA-coated EVs. The aim of this study was to test whether bone marrow-derived hMSCs secrete HA-coated EVs. The EVs secreted by MSCs were isolated by differential centrifugation and characterized by nanoparticle tracking analysis. Their morphology and budding mechanisms were inspected by confocal microscopy and correlative light and electron microscopy. Hyaluronan synthesis of hMSCs was induced by lipopolysaccharide and inhibited by RNA interference and 4-methylumbelliferone. It was found that the MSCs have extremely long apical and lateral HA-coated filopodia, typical for cells with an active HA secretion. Additionally, they secreted HA-coated EVs carrying mRNAs for CD44 and all HAS isoforms. The results show that stem cells have a strong intrinsic potential for HA synthesis and EV secretion, and the amount of HA carried on EVs reflects the HA content of the original cells. These results show that the secretion of HA-coated EVs by hMSCs is a general process, that may contribute to many of the mechanisms of HA-mediated tissue regeneration. Additionally, an HA coat on EVs may regulate their interactions with target cells and participate in extracellular matrix remodeling.
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Affiliation(s)
- Uma Thanigai Arasu
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Riikka Kärnä
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Kai Härkönen
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Sanna Oikari
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland
| | - Arto Koistinen
- SIB Labs, University of Eastern Finland, Kuopio, Finland
| | - Heikki Kröger
- Department of Orthopaedics and Traumatology, Kuopio University Hospital, Kuopio, Finland; Bone and Cartilage Research Unit, Surgery, Institute of Clinical Medicine, University of Eastern Finland
| | - Chengjuan Qu
- Department of Integrative Medical Biology, Umeå University, Sweden
| | - Mikko J Lammi
- Department of Integrative Medical Biology, Umeå University, Sweden; School of Public Health, Health Science Center of Xi'an Jiaotong University, Key Laboratory of Trace Elements and Endemic Diseases, National Health and Family Planning Commission, Xi'an, PR China
| | - Kirsi Rilla
- Institute of Biomedicine, University of Eastern Finland, Kuopio, Finland.
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228
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Association of Extracellular Membrane Vesicles with Cutaneous Wound Healing. Int J Mol Sci 2017; 18:ijms18050956. [PMID: 28468315 PMCID: PMC5454869 DOI: 10.3390/ijms18050956] [Citation(s) in RCA: 58] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2017] [Revised: 04/19/2017] [Accepted: 04/27/2017] [Indexed: 02/06/2023] Open
Abstract
Extracellular vesicles (EVs) are membrane-enclosed vesicles that are released into the extracellular environment by various cell types, which can be classified as apoptotic bodies, microvesicles and exosomes. EVs have been shown to carry DNA, small RNAs, proteins and membrane lipids which are derived from the parental cells. Recently, several studies have demonstrated that EVs can regulate many biological processes, such as cancer progression, the immune response, cell proliferation, cell migration and blood vessel tube formation. This regulation is achieved through the release and transport of EVs and the transfer of their parental cell-derived molecular cargo to recipient cells. This thereby influences various physiological and sometimes pathological functions within the target cells. While intensive investigation of EVs has focused on pathological processes, the involvement of EVs in normal wound healing is less clear; however, recent preliminarily investigations have produced some initial insights. This review will provide an overview of EVs and discuss the current literature regarding the role of EVs in wound healing, especially, their influence on coagulation, cell proliferation, migration, angiogenesis, collagen production and extracellular matrix remodelling.
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229
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Julier Z, Park AJ, Briquez PS, Martino MM. Promoting tissue regeneration by modulating the immune system. Acta Biomater 2017; 53:13-28. [PMID: 28119112 DOI: 10.1016/j.actbio.2017.01.056] [Citation(s) in RCA: 459] [Impact Index Per Article: 65.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2016] [Revised: 01/03/2017] [Accepted: 01/20/2017] [Indexed: 02/07/2023]
Abstract
The immune system plays a central role in tissue repair and regeneration. Indeed, the immune response to tissue injury is crucial in determining the speed and the outcome of the healing process, including the extent of scarring and the restoration of organ function. Therefore, controlling immune components via biomaterials and drug delivery systems is becoming an attractive approach in regenerative medicine, since therapies based on stem cells and growth factors have not yet proven to be broadly effective in the clinic. To integrate the immune system into regenerative strategies, one of the first challenges is to understand the precise functions of the different immune components during the tissue healing process. While remarkable progress has been made, the immune mechanisms involved are still elusive, and there is indication for both negative and positive roles depending on the tissue type or organ and life stage. It is well recognized that the innate immune response comprising danger signals, neutrophils and macrophages modulates tissue healing. In addition, it is becoming evident that the adaptive immune response, in particular T cell subset activities, plays a critical role. In this review, we first present an overview of the basic immune mechanisms involved in tissue repair and regeneration. Then, we highlight various approaches based on biomaterials and drug delivery systems that aim at modulating these mechanisms to limit fibrosis and promote regeneration. We propose that the next generation of regenerative therapies may evolve from typical biomaterial-, stem cell-, or growth factor-centric approaches to an immune-centric approach. STATEMENT OF SIGNIFICANCE Most regenerative strategies have not yet proven to be safe or reasonably efficient in the clinic. In addition to stem cells and growth factors, the immune system plays a crucial role in the tissue healing process. Here, we propose that controlling the immune-mediated mechanisms of tissue repair and regeneration may support existing regenerative strategies or could be an alternative to using stem cells and growth factors. The first part of this review we highlight key immune mechanisms involved in the tissue healing process and marks them as potential target for designing regenerative strategies. In the second part, we discuss various approaches using biomaterials and drug delivery systems that aim at modulating the components of the immune system to promote tissue regeneration.
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Affiliation(s)
- Ziad Julier
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia
| | - Anthony J Park
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia
| | - Priscilla S Briquez
- Institute for Molecular Engineering, University of Chicago, Chicago, IL 60637, USA
| | - Mikaël M Martino
- European Molecular Biology Laboratory Australia, Australian Regenerative Medicine Institute, Monash University, Victoria 3800, Australia.
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230
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Faust A, Kandakatla A, van der Merwe Y, Ren T, Huleihel L, Hussey G, Naranjo JD, Johnson S, Badylak S, Steketee M. Urinary bladder extracellular matrix hydrogels and matrix-bound vesicles differentially regulate central nervous system neuron viability and axon growth and branching. J Biomater Appl 2017; 31:1277-1295. [PMID: 28447547 DOI: 10.1177/0885328217698062] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
Central nervous system neurons often degenerate after trauma due to the inflammatory innate immune response to injury, which can lead to neuronal cell death, scarring, and permanently lost neurologic function. Extracellular matrix bioscaffolds, derived by decellularizing healthy tissues, have been widely used in both preclinical and clinical studies to promote positive tissue remodeling, including neurogenesis, in numerous tissues, with extracellular matrix from homologous tissues often inducing more positive responses. Extracellular matrix hydrogels are liquid at room temperature and enable minimally invasive extracellular matrix injections into central nervous system tissues, before gelation at 37℃. However, few studies have analyzed how extracellular matrix hydrogels influence primary central nervous system neuron survival and growth, and whether central nervous system and non-central nervous system extracellular matrix specificity is critical to neuronal responses. Urinary bladder extracellular matrix hydrogels increase both primary hippocampal neuron survival and neurite growth to similar or even greater extents, suggesting extracellular matrix from non-homologous tissue sources, such as urinary bladder matrix-extracellular matrix, may be a more economical and safer alternative to developing central nervous system extracellular matrices for central nervous system applications. Additionally, we show matrix-bound vesicles derived from urinary bladder extracellular matrix are endocytosed by hippocampal neurons and positively regulate primary hippocampal neuron neurite growth. Matrix-bound vesicles carry protein and RNA cargos, including noncoding RNAs and miRNAs that map to the human genome and are known to regulate cellular processes. Thus, urinary bladder matrix-bound vesicles provide natural and transfectable cargoes which offer new experimental tools and therapeutic applications to study and treat central nervous system neuron injury.
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Affiliation(s)
- Anne Faust
- 1 Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA
| | - Apoorva Kandakatla
- 1 Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA
| | - Yolandi van der Merwe
- 1 Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,3 Swanson School of Engineering, Department of Bioengineering University of Pittsburgh, Pittsburgh, PA, USA
| | - Tanchen Ren
- 1 Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA
| | - Luai Huleihel
- 2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,4 Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - George Hussey
- 2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,4 Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Juan Diego Naranjo
- 2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,4 Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Scott Johnson
- 2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,4 Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Stephen Badylak
- 2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,4 Department of Surgery, School of Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael Steketee
- 1 Department of Ophthalmology, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA.,2 McGowan Institute for Regenerative Medicine, Pittsburgh, PA, USA.,5 Center for Neuroscience, University of Pittsburgh, Pittsburgh, PA, USA
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231
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Morris AH, Stamer DK, Kyriakides TR. The host response to naturally-derived extracellular matrix biomaterials. Semin Immunol 2017; 29:72-91. [PMID: 28274693 DOI: 10.1016/j.smim.2017.01.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 01/20/2017] [Accepted: 01/31/2017] [Indexed: 12/13/2022]
Abstract
Biomaterials based on natural materials including decellularized tissues and tissue-derived hydrogels are becoming more widely used for clinical applications. Because of their native composition and structure, these biomaterials induce a distinct form of the foreign body response that differs from that of non-native biomaterials. Differences include direct interactions with cells via preserved moieties as well as the ability to undergo remodeling. Moreover, these biomaterials could elicit adaptive immune responses due to the presence of modified native molecules. Therefore, these biomaterials present unique challenges in terms of understanding the progression of the foreign body response. This review covers this response to natural materials including natural polymers, decellularized tissues, cell-derived matrix, tissue derived hydrogels, and biohybrid materials. With the expansion of the fields of regenerative medicine and tissue engineering, the current repertoire of biomaterials has also expanded and requires continuous investigation of the responses they elicit.
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Affiliation(s)
- Aaron H Morris
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States; Vascular Biology and Therapeutics Program, Yale University, New Haven, CT, United States
| | - D K Stamer
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States
| | - T R Kyriakides
- Department of Biomedical Engineering, Yale University, New Haven, CT, United States; Department of Pathology, Yale University, New Haven, CT, United States; Vascular Biology and Therapeutics Program, Yale University, New Haven, CT, United States.
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232
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Huleihel L, Scarritt ME, Badylak SF. The Influence of Extracellular RNA on Cell Behavior in Health, Disease and Regeneration. CURRENT PATHOBIOLOGY REPORTS 2017; 5:13-22. [PMID: 28944104 PMCID: PMC5604481 DOI: 10.1007/s40139-017-0121-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
PURPOSE OF REVIEW An overview of the role of extracellular RNAs (exRNA) in the regulation of homeostasis, disease progression, and regeneration is provided herein. Several exRNAs have been identified as potential biomarkers for disease and disease progression. In addition, the potential of exRNAs as a therapeutic modality is discussed. RECENT FINDINGS Fibrotic diseases of the lung, liver, and heart, among other organs share a number of identical exRNAs which play key roles in disease pathogenesis. Though regeneration is limited to only a few tissues in humans, small RNAs (e.g. microRNA) have been shown to be involved in the regenerative process of tissues such as liver and bone. The regulation of healing versus disease appears to be balanced by small RNAs. Because small RNAs are critical to health, they are being investigated as drug targets in multiple ongoing clinical trials. Preclinical studies suggest that promoting or blocking specific small RNAs can provide a novel therapeutic approach. SUMMARY exRNA can be utilized for both detection and treatment of disease. Natural and synthetic RNA carriers are being investigated as delivery methods for small RNA molecules. Current and future investigations are likely to lead to expanded applications for exRNAs.
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Affiliation(s)
- Luai Huleihel
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Michelle E. Scarritt
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
| | - Stephen F. Badylak
- McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15219, USA
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15219, USA
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233
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Extracellular matrix hydrogels from decellularized tissues: Structure and function. Acta Biomater 2017; 49:1-15. [PMID: 27915024 DOI: 10.1016/j.actbio.2016.11.068] [Citation(s) in RCA: 480] [Impact Index Per Article: 68.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2016] [Revised: 11/11/2016] [Accepted: 11/30/2016] [Indexed: 12/16/2022]
Abstract
Extracellular matrix (ECM) bioscaffolds prepared from decellularized tissues have been used to facilitate constructive and functional tissue remodeling in a variety of clinical applications. The discovery that these ECM materials could be solubilized and subsequently manipulated to form hydrogels expanded their potential in vitro and in vivo utility; i.e. as culture substrates comparable to collagen or Matrigel, and as injectable materials that fill irregularly-shaped defects. The mechanisms by which ECM hydrogels direct cell behavior and influence remodeling outcomes are only partially understood, but likely include structural and biological signals retained from the native source tissue. The present review describes the utility, formation, and physical and biological characterization of ECM hydrogels. Two examples of clinical application are presented to demonstrate in vivo utility of ECM hydrogels in different organ systems. Finally, new research directions and clinical translation of ECM hydrogels are discussed. STATEMENT OF SIGNIFICANCE More than 70 papers have been published on extracellular matrix (ECM) hydrogels created from source tissue in almost every organ system. The present manuscript represents a review of ECM hydrogels and attempts to identify structure-function relationships that influence the tissue remodeling outcomes and gaps in the understanding thereof. There is a Phase 1 clinical trial now in progress for an ECM hydrogel.
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234
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Fercana GR, Yerneni S, Billaud M, Hill JC, VanRyzin P, Richards TD, Sicari BM, Johnson SA, Badylak SF, Campbell PG, Gleason TG, Phillippi JA. Perivascular extracellular matrix hydrogels mimic native matrix microarchitecture and promote angiogenesis via basic fibroblast growth factor. Biomaterials 2017; 123:142-154. [PMID: 28167392 DOI: 10.1016/j.biomaterials.2017.01.037] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2016] [Accepted: 01/27/2017] [Indexed: 01/12/2023]
Abstract
Extracellular matrix (ECM)-derived bioscaffolds have been shown to elicit tissue repair through retention of bioactive signals. Given that the adventitia of large blood vessels is a richly vascularized microenvironment, we hypothesized that perivascular ECM contains bioactive signals that influence cells of blood vessel lineages. ECM bioscaffolds were derived from decellularized human and porcine aortic adventitia (hAdv and pAdv, respectively) and then shown have minimal DNA content and retain elastin and collagen proteins. Hydrogel formulations of hAdv and pAdv ECM bioscaffolds exhibited gelation kinetics similar to ECM hydrogels derived from porcine small intestinal submucosa (pSIS). hAdv and pAdv ECM hydrogels displayed thinner, less undulated, and fibrous microarchitecture reminiscent of native adventitia, with slight differences in ultrastructure visible in comparison to pSIS ECM hydrogels. Pepsin-digested pAdv and pSIS ECM bioscaffolds increased proliferation of human adventitia-derived endothelial cells and this effect was mediated in part by basic fibroblast growth factor (FGF2). Human endothelial cells cultured on Matrigel substrates formed more numerous and longer tube-like structures when supplemented with pAdv ECM bioscaffolds, and FGF2 mediated this matrix signaling. ECM bioscaffolds derived from pAdv promoted FGF2-dependent in vivo angiogenesis in the chick chorioallantoic membrane model. Using an angiogenesis-focused protein array, we detected 55 angiogenesis-related proteins, including FGF2 in hAdv, pAdv and pSIS ECMs. Interestingly, 19 of these factors were less abundant in ECMs bioscaffolds derived from aneurysmal specimens of human aorta when compared with non-aneurysmal (normal) specimens. This study reveals that Adv ECM hydrogels recapitulate matrix fiber microarchitecture of native adventitia, and retain angiogenesis-related actors and bioactive properties such as FGF2 signaling capable of influencing processes important for angiogenesis. This work supports the use of Adv ECM bioscaffolds for both discovery biology and potential translation towards microvascular regeneration in clinical applications.
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Affiliation(s)
- George R Fercana
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Saigopalakrishna Yerneni
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Marie Billaud
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Jennifer C Hill
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Paul VanRyzin
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Tara D Richards
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Brian M Sicari
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Scott A Johnson
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Stephen F Badylak
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Phil G Campbell
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Thomas G Gleason
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
| | - Julie A Phillippi
- Department of Cardiothoracic Surgery, McGowan Institute for Regenerative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA
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235
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Uhl FE, Wagner DE, Weiss DJ. Preparation of Decellularized Lung Matrices for Cell Culture and Protein Analysis. Methods Mol Biol 2017; 1627:253-283. [PMID: 28836208 PMCID: PMC7456164 DOI: 10.1007/978-1-4939-7113-8_18] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The limited available treatment options for patients with chronic lung diseases, such as fibrosis, lead to poor prognosis after diagnosis and short survival rates. An exciting new bioengineering approach utilizes de- and recellularization of lung tissue to potentially overcome donor organ shortage and immune reactions toward the received transplant. The goal of decellularization is to create a scaffold which contains the necessary framework for stability and functionality for regenerating lung tissue while removing immunomodulatory factors by removal of cells. After decellularization, the scaffold could be re-functionalized by repopulation with the patient's own stem/progenitor cells to create a fully functional organ or can be used as ex vivo models of disease. In this chapter the decellularization of lung tissue from multiple species (i.e., rodents, pigs, and humans) as well as disease states such as fibrosis is described. We discuss and describe the various quality control measures which should be used to characterize decellularized scaffolds, methods for protein analysis of the remaining scaffold, and methods for recellularization of scaffolds.
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Affiliation(s)
- Franziska E Uhl
- Department of Med-Pulmonary, College of Medicine, University of Vermont, Burlington, VT, USA.
| | - Darcy E Wagner
- Comprehensive Pneumology Center, University Hospital, Ludwig-Maximilians University, Helmholtz Zentrum München, Member of the German Center for Lung Research (DZL), Munich, Germany
| | - Daniel J Weiss
- Department of Med-Pulmonary, College of Medicine, University of Vermont, Burlington, VT, USA
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236
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van der Merwe Y, Faust AE, Steketee MB. Matrix bound vesicles and miRNA cargoes are bioactive factors within extracellular matrix bioscaffolds. Neural Regen Res 2017; 12:1597-1599. [PMID: 29171416 PMCID: PMC5696832 DOI: 10.4103/1673-5374.217324] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Affiliation(s)
- Yolandi van der Merwe
- Department of Bioengineering, Swanson School of Engineering, University of Pittsburgh, Pittsburgh, PA; Department of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, PA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Anne E Faust
- Department of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, PA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA, USA
| | - Michael B Steketee
- Department of Ophthalmology, School of Medicine, University of Pittsburgh, Pittsburgh, PA; McGowan Institute for Regenerative Medicine, University of Pittsburgh, Pittsburgh, PA; Center for Neuroscience University of Pittsburgh, University of Pittsburgh, Pittsburgh, PA, USA
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237
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Naranjo JD, Scarritt ME, Huleihel L, Ravindra A, Torres CM, Badylak SF. Regenerative Medicine: lessons from Mother Nature. Regen Med 2016; 11:767-775. [PMID: 27885899 DOI: 10.2217/rme-2016-0111] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Regenerative medicine strategies for the restoration of functional tissue have evolved from the concept of ex vivo creation of engineered tissue toward the broader concept of in vivo induction of functional tissue reconstruction. Multidisciplinary approaches are being investigated to achieve this goal using evolutionarily conserved principles of stem cell biology, developmental biology and immunology, current methods of engineering and medicine. This evolution from ex vivo tissue engineering to the manipulation of fundamental in vivo tenets of development and regeneration has the potential to capitalize upon the incredibly complex and only partially understood ability of cells to adapt, proliferate, self-organize and differentiate into functional tissue.
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Affiliation(s)
- Juan Diego Naranjo
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Michelle E Scarritt
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Luai Huleihel
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Anjani Ravindra
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Division of Pediatric Pulmonary Medicine, Allergy & Immunology, Children's Hospital of UPMC, Pittsburgh, PA 15224, USA
| | - Crisanto M Torres
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Stephen F Badylak
- McGowan Institute for Regenerative Medicine, Pittsburgh, PA 15219, USA.,Department of Surgery, University of Pittsburgh, Pittsburgh, PA 15213, USA.,Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
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