151
|
Abstract
We explore the design and synthesis of hydrogel scaffolds for tissue engineering from the perspective of the underlying polymer chemistry. The key polymers, properties and architectures used, and their effect on tissue growth are discussed.
Collapse
|
152
|
Barbosa LS, Parisi JR, Viana LDC, Carneiro MB, Silva JRTD, Silva MLD, Novaes RD, Sousa LD. The photobiomodulation (658, 830 and 904nm) on wound healing in histomorphometric analysis. FISIOTERAPIA EM MOVIMENTO 2020. [DOI: 10.1590/1980-5918.033.ao18] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Abstract Introduction: Photobiomodulation (PBM) assists in the processes of angiogenesis and cellular mitosis after skin lesion, contributing to tissue repair. Objective: to investigate the effects of photobiomodulation (during the proliferative phase) of 658 nm, 830 nm and 904 nm in the repair of skin lesions in an animal model. Method: 658 nm (G658), 830 nm (G830), 904 nm (G904) PBM, and control group (CG) integrated the research. We submitted the animals to an excisional wound and treatment at different wavelengths for 14 days. On the seventh and 14-1485004059th postoperative days, we calculated the area and percentage of lesion contraction. The animals were sacrificed on the 14-1485004056th postoperative day and cutaneous section of the injured region was collected for histomorphometric evaluation of the cellularity, neovascularization, thickness of the epidermis and volume density of collagen fibers colored with H&E and Picross Sirius respectively. For the statistical analysis, we applied the ANOVA test. Results: the G658 presented higher cellularity than GC (p = 0.03). The animals in the G658 group showed a significant increase in the neovascularization in relation to the CG (p = 0.01). Type III collagen significantly increased in G904 compared to G830 (p < 0.0001) and CG (p < 0.0001). The G658 had a significant increase in type III collagen fibers compared to G830 (p < 0.0001) and GC (p < 0.0001). We found no significant difference in the thickness of the epidermis, wound area, and in the percentage wound of contraction between the analyzed groups. Conclusion: PBM was effective to stimulate the tissue repair process, with better results for the 658 nm wavelength.
Collapse
|
153
|
Silicone elastomer gel impregnated with 20(S)-protopanaxadiol-loaded nanostructured lipid carriers for ordered diabetic ulcer recovery. Acta Pharmacol Sin 2020; 41:119-128. [PMID: 31534201 PMCID: PMC7471442 DOI: 10.1038/s41401-019-0288-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2019] [Accepted: 07/11/2019] [Indexed: 11/08/2022] Open
Abstract
Inefficient diabetic ulcer healing and scar formation remain a challenge worldwide, owing to a series of disordered and dynamic biological events that occur during the process of healing. A functional wound dressing that is capable of promoting ordered diabetic wound recovery is eagerly anticipated. In this study, we designed a silicone elastomer with embedded 20(S)-protopanaxadiol-loaded nanostructured lipid carriers (PPD-NS) to achieve ordered recovery in scarless diabetic ulcer healing. The nanostructured lipid carriers were prepared through an emulsion evaporation-solidification method and then incorporated into a network of silicone elastomer to form a unique nanostructured lipid carrier-enriched gel formulation. Interestingly, the PPD-NS showed excellent in vitro anti-inflammatory and proangiogenic activity. Moreover, in diabetic mice with full-thickness skin excision wound, treatment with PPD-NS significantly promoted in vivo scarless wound healing through suppressing inflammatory infiltration in the inflammatory phase, promoting angiogenesis during the proliferation phase, and regulating collagen deposition in the remodeling phase. Hence, this study demonstrates that the developed PPD-NS could facilitate ordered diabetic wound recovery via multifunctional improvement during different wound-healing phases. This novel approach could be promising for scarless diabetic wound healing.
Collapse
|
154
|
Daristotle JL, Lau LW, Erdi M, Hunter J, Djoum A, Srinivasan P, Wu X, Basu M, Ayyub OB, Sandler AD, Kofinas P. Sprayable and biodegradable, intrinsically adhesive wound dressing with antimicrobial properties. Bioeng Transl Med 2020; 5:e10149. [PMID: 31989038 PMCID: PMC6971445 DOI: 10.1002/btm2.10149] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 11/04/2019] [Accepted: 12/03/2019] [Indexed: 01/29/2023] Open
Abstract
Conventional wound dressings are difficult to apply to large total body surface area (TBSA) wounds, as they typically are prefabricated, require a layer of adhesive coating for fixation, and need frequent replacement for entrapped exudate. Large TBSA wounds as well as orthopedic trauma and low-resource surgery also have a high risk of infection. In this report, a sprayable and intrinsically adhesive wound dressing loaded with antimicrobial silver is investigated that provides personalized fabrication with minimal patient contact. The dressing is composed of adhesive and biodegradable poly(lactic-co-glycolic acid) and poly(ethylene glycol) (PLGA/PEG) blend fibers with or without silver salt (AgNO3). in vitro studies demonstrate that the PLGA/PEG/Ag dressing has antimicrobial properties and low cytotoxicity, with antimicrobial silver controllably released over 7-14 days. In a porcine partial-thickness wound model, the wounds treated with both antimicrobial and nonantimicrobial PLGA/PEG dressings heal at rates similar to those of the clinical, thin film polyurethane wound dressing, with similar scarring. However, PLGA/PEG adds a number of features beneficial for wound healing: greater exudate absorption, integration into the wound, a 25% reduction in dressing changes, and tissue regeneration with greater vascularization. There is also modest improvement in epidermis thickness compared to the control wound dressing.
Collapse
Affiliation(s)
- John L. Daristotle
- Fischell Department of BioengineeringUniversity of MarylandCollege ParkMaryland
| | - Lung W. Lau
- Sheikh Zayed Institute for Pediatric Surgical InnovationJoseph E. Robert Jr. Center for Surgical Care, Children's National Medical CenterWashingtonDistrict of Columbia
| | - Metecan Erdi
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMaryland
| | - Joseph Hunter
- Fischell Department of BioengineeringUniversity of MarylandCollege ParkMaryland
| | - Albert Djoum
- Department of Chemistry and BiochemistryUniversity of MarylandCollege ParkMaryland
| | - Priya Srinivasan
- Sheikh Zayed Institute for Pediatric Surgical InnovationJoseph E. Robert Jr. Center for Surgical Care, Children's National Medical CenterWashingtonDistrict of Columbia
| | - Xiaofang Wu
- Sheikh Zayed Institute for Pediatric Surgical InnovationJoseph E. Robert Jr. Center for Surgical Care, Children's National Medical CenterWashingtonDistrict of Columbia
| | - Mousumi Basu
- Sheikh Zayed Institute for Pediatric Surgical InnovationJoseph E. Robert Jr. Center for Surgical Care, Children's National Medical CenterWashingtonDistrict of Columbia
| | - Omar B. Ayyub
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMaryland
| | - Anthony D. Sandler
- Sheikh Zayed Institute for Pediatric Surgical InnovationJoseph E. Robert Jr. Center for Surgical Care, Children's National Medical CenterWashingtonDistrict of Columbia
| | - Peter Kofinas
- Department of Chemical and Biomolecular EngineeringUniversity of MarylandCollege ParkMaryland
| |
Collapse
|
155
|
Development of hydrogel-like biomaterials via nanoparticle assembly and solid-hydrogel transformation. J Control Release 2019; 318:185-196. [PMID: 31857102 DOI: 10.1016/j.jconrel.2019.12.026] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/07/2019] [Accepted: 12/15/2019] [Indexed: 11/22/2022]
Abstract
Hydrogels for biomedical applications such as controlled drug release are usually synthesized with the chemical or physical crosslinking of monomers or macromers. In this work, we used gelatin to prepare hydrogel nanoparticles and studied whether gelatin nanoparticles (GNPs) could assemble to form a solid biomaterial and whether this solid biomaterial was capable of transforming into a hydrogel upon introduction to a hydrated environment. The data show that GNPs with or without aptamer functionalization could form a nanoparticle-assembled porous solid biomaterial after freezing and lyophilization treatment. This formation did not need any additional crosslinking reactions. More importantly, this solid biomaterial could undergo solid-to-hydrogel transition after contacting a solution and this transformation was tunable to match different shapes and geometries of defined molds. The formed hydrogel could also sequester and release growth factors for the promotion of skin wound healing. Thus, GNP-assembled solid biomaterials hold great potential as an off-the-shelf therapy for biomedical application such as drug delivery and regenerative medicine.
Collapse
|
156
|
Bosak A, Kwan MWC, Willenberg A, Perle KMDL, Weinstein D, Hines RB, Schultz GS, Ross EA, Willenberg BJ. Capillary alginate gel (Capgel™) for the treatment of full-thickness dermal wounds in a hypoxic mouse model. INT J POLYM MATER PO 2019. [DOI: 10.1080/00914037.2018.1534112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Alexander Bosak
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Michael W. C. Kwan
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Alicia Willenberg
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Krista M. D. La Perle
- Department of Veterinary Biosciences, College of Veterinary Medicine, Ohio State University, Columbus, Ohio, USA
| | - David Weinstein
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Robert B. Hines
- Department of Population Health Sciences, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Gregory S. Schultz
- Department of Obstetrics and Gynecology, College of Medicine, University of Florida, Gainesville, Florida, USA
| | - Edward A. Ross
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
| | - Bradley J. Willenberg
- Department of Internal Medicine, College of Medicine, University of Central Florida, Orlando, Florida, USA
- Saisijin Biotech, LLC, St. Cloud, Florida, USA
| |
Collapse
|
157
|
A Human Umbilical Cord Mesenchymal Stem Cell-Conditioned Medium/Chitosan/Collagen/ β-Glycerophosphate Thermosensitive Hydrogel Promotes Burn Injury Healing in Mice. BIOMED RESEARCH INTERNATIONAL 2019; 2019:5768285. [PMID: 31886229 PMCID: PMC6915016 DOI: 10.1155/2019/5768285] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2019] [Accepted: 10/24/2019] [Indexed: 01/02/2023]
Abstract
We investigated the effects of a human umbilical cord mesenchymal stem cell-conditioned medium (MSC-CM)/chitosan/collagen/β-glycerophosphate (β-GP) thermosensitive hydrogel (MSC-CM/hydrogel) on mice with third-degree burns. MSC-CM was collected and mixed with chitosan, collagen, and β-GP to generate the thermosensitive MSC-CM/hydrogel, which was stored in the liquid phase at 4°C. The wounds of established third-degree burned mice were then externally covered with the MSC-CM/hydrogel, which formed a gel when placed on the wounds at physiological temperature. Injured mice in three additional groups were treated with unconditioned MSC medium (UM), MSC-CM, or UM/chitosan/collagen/β-GP thermosensitive hydrogels. Skin wound samples were obtained 4, 14, and 28 days after burning for further analysis by hematoxylin and eosin and Ki-67 staining. Wound healing rates and times, in addition to immunohistochemical results, were then compared and analyzed among the four groups. Application of the MSC-CM/hydrogel shortened healing time, limited the area of inflammation, enhanced reepithelialization, promoted the formation of high-quality, well-vascularized granulation tissue, and attenuated the formation of fibrotic and hypertrophic scar tissue. In summary, MSC-CM/hydrogel effectively promotes wound healing in third-degree burned mice.
Collapse
|
158
|
Wang P, Huang S, Hu Z, Yang W, Lan Y, Zhu J, Hancharou A, Guo R, Tang B. In situ formed anti-inflammatory hydrogel loading plasmid DNA encoding VEGF for burn wound healing. Acta Biomater 2019; 100:191-201. [PMID: 31586729 DOI: 10.1016/j.actbio.2019.10.004] [Citation(s) in RCA: 107] [Impact Index Per Article: 21.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 09/28/2019] [Accepted: 10/01/2019] [Indexed: 01/04/2023]
Abstract
Excessive inflammation and reduced angiogenesis are two major obstacles in burn wound healing and skin regeneration. Here we report the fabrication and application of a sophisticated hydrogel from chemically modified hyaluronic acid (HA), dextran (Dex), and β-cyclodextrin (β-CD) integrating resveratrol (Res) and vascular endothelial growth factor (VEGF) plasmid as the anti-inflammatory and pro-angiogenic components for burn wounds. Firstly, covalent alterations were conducted to obtain methacrylic acid anhydride modified HA (HAMA), N-hydroxyethylacrylamide (HEAA) modified Dex (Dex-HEAA), and poly(ethylene glycol) methyl acrylate (526) modified β-CD (526-β-CD), respectively. Secondly, anti-inflammatory substance Res was embedded into the lipophilic central cavity of 526-β-CD to achieve a complex of 526-β-CD-Res. Then hydrogels with different HAMA, Dex-HEAA, and 526-β-CD-Res ratios were generated via UV irradiation. Lastly, plasmid DNA encoded with vascular endothelial growth factor (pDNA-VEGF) conjugating with polyethylenimine was loaded into the hydrogel scaffold. Combining the benefits of all components of the scaffold, the hydrogel embedded with Res and VEGF (Gel-Res/pDNA-VEGF) accelerated the splinted excisional burn wound healing, particularly by inhibiting inflammation response and promoting microvascular formation while being biocompatible. The Res and VEGF gene loaded hydrogel system can be considered as a promising wound dressing for the treatment of various types of wounds. STATEMENT OF SIGNIFICANCE: Combining the benefits of all components of the scaffold, the hydrogel embedded with Res and VEGF (Gel-Res/pDNA-VEGF) accelerated the splinted excisional burn wound healing, particularly by inhibiting inflammation response and promoting microvascular formation while being biocompatible. The Res and VEGF gene loaded hydrogel system can be considered as a promising wound dressing for the treatment of various types of wounds.
Collapse
Affiliation(s)
- Peng Wang
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Shaobin Huang
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Zhicheng Hu
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Wei Yang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Yong Lan
- Beogene Biotech (Guangzhou) CO., LTD, Guangzhou 510663, China
| | - Jiayuan Zhu
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Andrei Hancharou
- The Institute of Biophysics and Cell Engineering, The National Academy of Sciences of Belarus, Minsk 220072, Belarus
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Bing Tang
- Department of Burn and Plastic Surgery, The First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China.
| |
Collapse
|
159
|
Xue H, Hu L, Xiong Y, Zhu X, Wei C, Cao F, Zhou W, Sun Y, Endo Y, Liu M, Liu Y, Liu J, Abududilibaier A, Chen L, Yan C, Mi B, Liu G. Quaternized chitosan-Matrigel-polyacrylamide hydrogels as wound dressing for wound repair and regeneration. Carbohydr Polym 2019; 226:115302. [DOI: 10.1016/j.carbpol.2019.115302] [Citation(s) in RCA: 84] [Impact Index Per Article: 16.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 07/17/2019] [Accepted: 09/05/2019] [Indexed: 10/26/2022]
|
160
|
Urciuolo F, Casale C, Imparato G, Netti PA. Bioengineered Skin Substitutes: the Role of Extracellular Matrix and Vascularization in the Healing of Deep Wounds. J Clin Med 2019; 8:E2083. [PMID: 31805652 PMCID: PMC6947552 DOI: 10.3390/jcm8122083] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Revised: 11/25/2019] [Accepted: 11/26/2019] [Indexed: 12/21/2022] Open
Abstract
The formation of severe scars still represents the result of the closure process of extended and deep skin wounds. To address this issue, different bioengineered skin substitutes have been developed but a general consensus regarding their effectiveness has not been achieved yet. It will be shown that bioengineered skin substitutes, although representing a valid alternative to autografting, induce skin cells in repairing the wound rather than guiding a regeneration process. Repaired skin differs from regenerated skin, showing high contracture, loss of sensitivity, impaired pigmentation and absence of cutaneous adnexa (i.e., hair follicles and sweat glands). This leads to significant mobility and aesthetic concerns, making the development of more effective bioengineered skin models a current need. The objective of this review is to determine the limitations of either commercially available or investigational bioengineered skin substitutes and how advanced skin tissue engineering strategies can be improved in order to completely restore skin functions after severe wounds.
Collapse
Affiliation(s)
- Francesco Urciuolo
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II P.le Tecchio 80, 80125 Naples, Italy
| | - Costantino Casale
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
| | - Giorgia Imparato
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
| | - Paolo A. Netti
- Department of Chemical, Materials and Industrial Production Engineering (DICMAPI) University of Naples Federico II, P.le Tecchio 80, 80125 Naples, Italy; (C.C.); (P.A.N.)
- Interdisciplinary Research Centre on Biomaterials (CRIB), University of Naples Federico II P.le Tecchio 80, 80125 Naples, Italy
- Center for Advanced Biomaterials for HealthCare@CRIB, Istituto Italiano di Tecnologia, Largo Barsanti e Matteucci 53, 80125 Naples, Italy;
| |
Collapse
|
161
|
McCarthy RR, Ullah MW, Booth P, Pei E, Yang G. The use of bacterial polysaccharides in bioprinting. Biotechnol Adv 2019; 37:107448. [DOI: 10.1016/j.biotechadv.2019.107448] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 09/05/2019] [Accepted: 09/06/2019] [Indexed: 02/07/2023]
|
162
|
Sheikholeslam M, Wright MEE, Cheng N, Oh HH, Wang Y, Datu AK, Santerre JP, Amini-Nik S, Jeschke MG. Electrospun Polyurethane–Gelatin Composite: A New Tissue-Engineered Scaffold for Application in Skin Regeneration and Repair of Complex Wounds. ACS Biomater Sci Eng 2019; 6:505-516. [DOI: 10.1021/acsbiomaterials.9b00861] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Mohammadali Sheikholeslam
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
- Department of Biomaterials, Tissue Engineering and Nanotechnology, School of Advanced Technologies in Medicine, Isfahan University of Medical Sciences, Isfahan, Isfahan 81746-73461, Iran
| | | | - Nan Cheng
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Hwan Hee Oh
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Yanran Wang
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Andrea K. Datu
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | | | - Saeid Amini-Nik
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| | - Marc G. Jeschke
- Ross Tilley Burn Centre, Sunnybrook Research Institute, Sunnybrook Health Sciences Centre, University of Toronto, 2075 Bayview Avenue, Toronto, Ontario M4N 3M5, Canada
| |
Collapse
|
163
|
Yang Q, Lopez MJ. The Equine Hoof: Laminitis, Progenitor (Stem) Cells, and Therapy Development. Toxicol Pathol 2019; 49:1294-1307. [PMID: 31741428 DOI: 10.1177/0192623319880469] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The equine hoof capsule, composed of modified epidermis and dermis, is vital for protecting the third phalanx from forces of locomotion. There are descriptions of laminitis, defined as inflammation of sensitive hoof tissues but recognized as pathologic changes with or without inflammatory mediators, in the earliest records of domesticated horses. Laminitis can range from mild to serious, and signs can be acute, chronic, or transition from acute, severe inflammation to permanently abnormal tissue. Damage within the intricate dermal and epidermal connections of the primary and secondary lamellae is often associated with lifelong changes in hoof growth, repair, and conformation. Decades of research contribute to contemporary standards of care that include systemic and local therapies as well as mechanical hoof support. Despite this, consistent mechanisms to restore healthy tissue formation following a laminitic insult are lacking. Endogenous and exogenous progenitor cell contributions to healthy tissue formation is established for most tissues. There is comparably little information about equine hoof progenitor cells. Equine hoof anatomy, laminitis, and progenitor cells are covered in this review. The potential of progenitor cells to advance in vitro equine hoof tissue models and translate to clinical therapies may significantly improve prevention and treatment of a devastating condition that has afflicted equine companions throughout history.
Collapse
Affiliation(s)
- Qingqiu Yang
- Department of Veterinary Clinical Sciences, Laboratory for Equine and Comparative Orthopedic Research, Baton Rouge, LA, USA
| | - Mandi J Lopez
- Department of Veterinary Clinical Sciences, Laboratory for Equine and Comparative Orthopedic Research, Baton Rouge, LA, USA
| |
Collapse
|
164
|
Denatured acellular dermal matrix seeded with bone marrow mesenchymal stem cells for wound healing in mice. Burns 2019; 45:1685-1694. [DOI: 10.1016/j.burns.2019.04.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Revised: 04/02/2019] [Accepted: 04/16/2019] [Indexed: 12/15/2022]
|
165
|
Cheng N, Jeschke MG, Sheikholeslam M, Datu AK, Oh HH, Amini-Nik S. Promotion of dermal regeneration using pullulan/gelatin porous skin substitute. J Tissue Eng Regen Med 2019; 13:1965-1977. [PMID: 31350941 PMCID: PMC7020691 DOI: 10.1002/term.2946] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2018] [Revised: 07/11/2019] [Accepted: 07/15/2019] [Indexed: 12/18/2022]
Abstract
Tissue-engineered dermal substitutes represent a promising approach to improve wound healing and provide more sufficient regeneration, compared with current clinical standards on care of large wounds, early excision, and grafting of autografts. However, inadequate regenerative capacity, impaired regeneration/degradation profile, and high cost of current commercial tissue-engineered dermal regeneration templates hinder their utilization, and the development of an efficient and cost-effective tissue-engineered dermal substitute remains a challenge. Inspired from our previously reported data on a pullulan/gelatin scaffold, here we present a new generation of a porous pullulan/gelatin scaffold (PG2) served as a dermal substitute with enhanced chemical and structural characteristics. PG2 shows excellent biocompatibility (viability, migration, and proliferation), assessed by in vitro incorporation of human dermal fibroblasts in comparison with the Integra® dermal regeneration template (Control). When applied on a mouse full-thickness excisional wound, PG2 shows rapid scaffold degradation, more granulation tissue, more collagen deposition, and more cellularity in comparison with Control at 20 days post surgery. The faster degradation is likely due to the enhanced recruitment of inflammatory macrophages to the scaffold from the wound bed, and that leads to earlier maturation of granulation tissue with less myofibroblastic cells. Collectively, our data reveal PG2's characteristics as an applicable dermal substitute with excellent dermal regeneration, which may attenuate scar formation.
Collapse
Affiliation(s)
- Nan Cheng
- Sunnybrook Research Institute, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Marc G Jeschke
- Sunnybrook Research Institute, University of Toronto, Toronto, ON M4N 3M5, Canada
- Institute of Medical Science, University of Toronto, Toronto, ON M5S 1A8, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
- Department of Immunology, University of Toronto, Toronto, ON M5S 1A8, Canada
- Ross-Tilley Burn Centre, Sunnybrook Health Sciences Centre, Toronto, ON M4N 3M5, Canada
| | | | - Andrea-Kaye Datu
- Sunnybrook Research Institute, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Hwan Hee Oh
- Sunnybrook Research Institute, University of Toronto, Toronto, ON M4N 3M5, Canada
| | - Saeid Amini-Nik
- Sunnybrook Research Institute, University of Toronto, Toronto, ON M4N 3M5, Canada
- Department of Surgery, University of Toronto, Toronto, ON M5T 1P5, Canada
- Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON M5S 1A8, Canada
| |
Collapse
|
166
|
Qu J, Liang Y, Shi M, Guo B, Gao Y, Yin Z. Biocompatible conductive hydrogels based on dextran and aniline trimer as electro-responsive drug delivery system for localized drug release. Int J Biol Macromol 2019; 140:255-264. [DOI: 10.1016/j.ijbiomac.2019.08.120] [Citation(s) in RCA: 72] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Revised: 08/12/2019] [Accepted: 08/13/2019] [Indexed: 12/22/2022]
|
167
|
Francesko A, Petkova P, Tzanov T. Hydrogel Dressings for Advanced Wound Management. Curr Med Chem 2019; 25:5782-5797. [PMID: 28933299 DOI: 10.2174/0929867324666170920161246] [Citation(s) in RCA: 130] [Impact Index Per Article: 26.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 12/08/2017] [Accepted: 08/25/2017] [Indexed: 12/12/2022]
Abstract
BACKGROUND Composed in a large extent of water and due to their nonadhesiveness, hydrogels found their way to the wound dressing market as materials that provide a moisture environment for healing while being comfortable to the patient. Hydrogels' exploitation is constantly increasing after evidences of their even broader therapeutic potential due to resemblance to dermal tissue and ability to induce partial skin regeneration. The innovation in advanced wound care is further directed to the development of so-called active dressings, where hydrogels are combined with components that enhance the primary purpose of providing a beneficial environment for wound healing. OBJECTIVE The objective of this review is to concisely describe the relevance of hydrogel dressings as platforms for delivery of active molecules for improved management of difficult- to-treat wounds. The emphasis is on the most recent advances in development of stimuli- responsive hydrogels, which allow for control over wound healing efficiency in response to different external modalities. Novel strategies for monitoring of the wound status and healing progress based on incorporation of sensor molecules into the hydrogel platforms are also discussed.
Collapse
Affiliation(s)
| | - Petya Petkova
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain
| | - Tzanko Tzanov
- Grup de Biotecnologia Molecular i Industrial, Department of Chemical Engineering, Universitat Politècnica de Catalunya, Terrassa, Spain
| |
Collapse
|
168
|
Ai L, He H, Wang P, Cai R, Tao G, Yang M, Liu L, Zuo H, Zhao P, Wang Y. Rational Design and Fabrication of ZnONPs Functionalized Sericin/PVA Antimicrobial Sponge. Int J Mol Sci 2019; 20:ijms20194796. [PMID: 31569598 PMCID: PMC6801402 DOI: 10.3390/ijms20194796] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 09/13/2019] [Accepted: 09/26/2019] [Indexed: 12/20/2022] Open
Abstract
The interests of developing antimicrobial biomaterials based on silk sericin from Bombyx mori cocoon, have been shooting up in the last decades. Sericin is a valuable natural protein owing to its hydrophilicity, biodegradability, and biocompatibility. Here, we fabricated a sponge with antibacterial capacities for potential wound dressing application. By co-blending of sericin, polyvinyl alcohol (PVA) and zinc oxide nanoparticles (ZnONPs), the ZnONPs-sericin/PVA composite sponge (ZnONPs-SP) was successfully prepared after freeze-drying. Scanning electron microscopy showed the porous structure of ZnONPs-SP. Energy dispersive spectroscopy indicated the existence of Zn in the sponge. X-ray diffractometry revealed the hexagonal wurtzite structure of ZnONPs. Fourier transform infrared spectroscopy showed the biologic coupling of ZnONPs and sericin resulted in a decrease of α-helix and random coil contents, and an increase of β-sheet structure in the sponge. The swelling experiment suggested ZnONPs-SP has high porosity, good hydrophilicity, and water absorption capability. The plate bacterial colony counting coupled with growth curve assays demonstrated that the composite sponge has an efficiently bacteriostatic effect against Staphylococcus aureus and Escherichia coli, respectively. Furthermore, the cell compatibility analysis suggested the composite sponge has excellent cytocompatibility on NIH3T3 cells. In all, ZnONPs-SP composite sponge has significant potentials in biomaterials such as wound dressing and tissue engineering.
Collapse
Affiliation(s)
- Lisha Ai
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
| | - Huawei He
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
- College of Biotechnology, Southwest University, Chongqing 400715, China.
- Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Beibei, Chongqing 400715, China.
| | - Peng Wang
- College of Biotechnology, Southwest University, Chongqing 400715, China.
| | - Rui Cai
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
| | - Gang Tao
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
| | - Meirong Yang
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
| | - Liying Liu
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
| | - Hua Zuo
- College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China.
| | - Ping Zhao
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
- Chongqing Key Laboratory of Sericultural Science, Chongqing Engineering and Technology Research Center for Novel Silk Materials, Southwest University, Beibei, Chongqing 400715, China.
| | - Yejing Wang
- Biological Science Research Center, Southwest University, Beibei, Chongqing 400715, China.
- College of Biotechnology, Southwest University, Chongqing 400715, China.
| |
Collapse
|
169
|
Farhadihosseinabadi B, Salimi M, Kazemi B, Samadikuchaksaraei A, Ghanbarian H, Mozafari M, Niknejad H. Inducing type 2 immune response, induction of angiogenesis, and anti-bacterial and anti-inflammatory properties make Lacto-n-Neotetraose (LNnT) a therapeutic choice to accelerate the wound healing process. Med Hypotheses 2019; 134:109389. [PMID: 31627122 DOI: 10.1016/j.mehy.2019.109389] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2019] [Revised: 08/21/2019] [Accepted: 09/02/2019] [Indexed: 01/13/2023]
Abstract
The healing process of non-healing and full-thickness wounds is currently facing some serious challenges. In such ulcers, losing a large part of skin causes a chronic infection due to the entrance of various pathogens in the wound bed. Moreover, poor vascularization, uncontrolled inflammation, and delayed re-epithelialization increase the healing time in patients suffering from such wounds. In this light, tissue engineering provides a wide range of strategies using a variety of biomaterials, biofactors and stem cells to decrease the healing time and restore the function of the damaged site. A suitable wound healing agent should possess some critical parameters such as inducing re-epithelialization, anti-inflammatory and anti-bacterial properties, and angiogenic capability. The Lacto-n-Neotetraose (LNnT) with chemical formula C26H45NO21 is an oligosaccharide present in human milk and soluble antigens extracted from Schistosoma mansoni eggs. It is reported that LNnT induces type 2 immune response (Th2 immunity). Th2 immunity promotes re-epithelialization, angiogenesis and wound contraction by recruiting the cells which produce Th2-related cytokines. Moreover, LNnT shows some special characteristics such as angiogenic capability, anti-inflammatory, and anti-bacterial effects which can address the mentioned challenges in the treatment of non-healing and full-thickness wounds. Here, we hypothesize that utilizing LNnT is an appropriate biofactor which would improve the healing process in full-thickness and non-healing wounds.
Collapse
Affiliation(s)
- Behrouz Farhadihosseinabadi
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Maryam Salimi
- Department of Biology and Anatomical Sciences, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Bahram Kazemi
- Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| | - Ali Samadikuchaksaraei
- Cellular and Molecular Research Centre, 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
| | - Hossein Ghanbarian
- Department of Biotechnology, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Cellular and Molecular Biology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoud Mozafari
- Bioengineering Research Group, Nanotechnology and Advanced Materials Department, Materials and Energy Research Center (MERC), PO Box 14155-4777, Tehran, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
170
|
Dalisson B, Barralet J. Bioinorganics and Wound Healing. Adv Healthc Mater 2019; 8:e1900764. [PMID: 31402608 DOI: 10.1002/adhm.201900764] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 07/19/2019] [Indexed: 12/18/2022]
Abstract
Wound dressings and the healing enhancement (increasing healing speed and quality) are two components of wound care that lead to a proper healing. Wound care today consists mostly of providing an optimal environment by removing waste and necrotic tissues from a wound, preventing infections, and keeping the wounds adequately moist. This is however often not enough to re-establish the healing process in chronic wounds; with the local disruption of vascularization, the local environment is lacking oxygen, nutrients, and has a modified ionic and molecular concentration which limits the healing process. This disruption may affect cellular ionic pumps, energy production, chemotaxis, etc., and will affect the healing process. Biomaterials for wound healing range from simple absorbents to sophisticated bioactive delivery vehicles. Often placing a material in or on a wound can change multiple parameters such as pH, ionic concentration, and osmolarity, and it can be challenging to pinpoint key mechanism of action. This article reviews the literature of several inorganic ions and molecules and their potential effects on the different wound healing phases and their use in new wound dressings.
Collapse
Affiliation(s)
| | - Jake Barralet
- Faculty of DentistryMcGill University Montreal H3A 1G1 QC Canada
- Division of OrthopaedicsDepartment of SurgeryFaculty of MedicineMcGill University Montreal H4A 0A9 QC Canada
| |
Collapse
|
171
|
Guo Y, Xu B, Wang Y, Li Y, Si H, Zheng X, Chen Z, Chen F, Fan D. Dramatic promotion of wound healing using a recombinant human-like collagen and bFGF cross-linked hydrogel by transglutaminase. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:1591-1603. [PMID: 31411556 DOI: 10.1080/09205063.2019.1652416] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Abstract
The basic fibroblast growth factor (bFGF) plays an important role in the wound repair process. However, lacking of better biomaterials to carry bFGF still is a challenge in skin repair and regeneration. In this study, the human-like collagen (HLC) cross-linked with transglutaminase (TG) to fabricate a HLC/TG hydrogel to load bFGF. The physical properties of hydrogel, such as interior structure, mechanical property, were characterized in vitro using scanning electron microscopy (SEM), rheometer. Then, the effects of the HLC/TG hydrogel on the bFGF and cell attachmentwere evaluated, and the results showed that the HLC/TG hydrogel has good biocompatibility towards bFGF and cells. Finally, skin wound healing test was performed for the evaluation of HLC/TG hydrogels with bFGF in a mouse model. All results of macroscopic and microscopic analysis indicated that not only our HLC/TG hydrogel provide a delivery of growth factors, but also the HLC/TG hydrogel with bFGF achieving better skin regeneration in the structure and function.
Collapse
Affiliation(s)
- Yayuan Guo
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University , Xi'an , Shaanxi , P.R. China.,Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Bing Xu
- School of Chemistry and Chemical Engineering, Xi'an University of Architecture & Technology , Xi'an , Shaanxi , P.R. China
| | - Yihang Wang
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Yan Li
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China
| | - He Si
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Xiaoyan Zheng
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Zhuoyue Chen
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University , Xi'an , Shaanxi , P.R. China.,Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Fulin Chen
- Lab of Tissue Engineering, Faculty of Life Science, Northwest University , Xi'an , Shaanxi , P.R. China.,Provincial Key Laboratory of Biotechnology of Shaanxi, Northwest University , Xi'an , Shaanxi , P.R. China.,Key Laboratory of Resource Biology and Modern Biotechnology in Western China, Ministry of Education, Northwest University , Xi'an , Shaanxi , P.R. China
| | - Daidi Fan
- Shaanxi Key Laboratory of Degradable Biomedical Materials, School of Chemical Engineering, Northwest University , Xi'an , Shaanxi , P.R. China.,Shaanxi R&D Center of Biomaterial and Fermentation Engineering, School of Chemical Engineering, Northwest University , Xi'an , Shaanxi , P.R. China
| |
Collapse
|
172
|
Xiao Y, Liu C, Chen Z, Blatchley MR, Kim D, Zhou J, Xu M, Gerecht S, Fan R. Senescent Cells with Augmented Cytokine Production for Microvascular Bioengineering and Tissue Repairs. ADVANCED BIOSYSTEMS 2019; 3:1900089. [PMID: 32270028 PMCID: PMC7141414 DOI: 10.1002/adbi.201900089] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2019] [Indexed: 12/19/2022]
Abstract
Controlled delivery of cytokines and growth factors has been an area of intense research interest for molecular and cellular bioengineering, immunotherapy, and regenerative medicine. In this study, we show that primary human lung fibroblasts chemically induced to senescence (cell cycle arrest) can act as a living source to transiently produce factors essential for promoting vasculogenesis or angiogenesis, such as VEGF, HGF, and IL-8. Co-culture of senescent fibroblasts with HUVECs in a fibrin gel demonstrated accelerated formation and maturation of microvessel networks in as early as three days. Unlike the usage of non-senescent fibroblasts as the angiogenesis-promoting cells, this approach eliminates drawbacks related to the overproliferation of fibroblasts and the subsequent disruption of tissue architecture, integrity, or function. Co-culture of pancreatic islets with senescent fibroblasts and endothelial cells in a gel matrix maintains the viability and function of islets ex vivo for up to five days. Applying senescent fibroblasts to wound repair in vivo led to increased blood flow in a diabetic mouse model. Together, this work points to a new direction for engineering the delivery of cytokines and growth factors that promote microvascular tissue engineering and tissue repairs.
Collapse
Affiliation(s)
- Yang Xiao
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
| | - Chang Liu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
| | - Zhuo Chen
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
| | - Michael R. Blatchley
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 20218, U.S.A
- Department of Chemical and Biomolecular Engineering, Institute for NanoBioTechnology, Johns Hopkins University Baltimore, MD 20218, U.S.A
| | - Dongjoo Kim
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
| | - Jing Zhou
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
- Department of Anesthesiology, Yale University, New Haven, CT 06520, U.S.A
| | - Ming Xu
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
| | - Sharon Gerecht
- Department of Biomedical Engineering, Johns Hopkins University, Baltimore, MD 20218, U.S.A
- Department of Chemical and Biomolecular Engineering, Institute for NanoBioTechnology, Johns Hopkins University Baltimore, MD 20218, U.S.A
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 20218, U.S.A
- Department of Oncology, Johns Hopkins University School of Medicine, Baltimore, MD 20218, U.S.A
| | - Rong Fan
- Department of Biomedical Engineering, Yale University, New Haven, CT 06520, U.S.A
- Yale Comprehensive Cancer Center, New Haven, CT 06520, U.S.A
| |
Collapse
|
173
|
|
174
|
Goldstein RL, Tsui JM, Runyan G, Randolph MA, McCormack MC, Mihm MC, Redmond RW, Austen WG. Photochemical Tissue Passivation Prevents Contracture of Full Thickness Wounds in Mice. Lasers Surg Med 2019; 51:910-919. [DOI: 10.1002/lsm.23128] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/01/2019] [Indexed: 02/06/2023]
Affiliation(s)
- Rachel L. Goldstein
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - Jane M. Tsui
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - Gem Runyan
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - Mark A. Randolph
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
- Wellman Center for Photomedicine, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - Michael C. McCormack
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - Martin C. Mihm
- Department of Dermatology, Harvard Medical SchoolBrigham and Women's Hospital 75 Francis St Boston Massachusetts 02115
| | - Robert W. Redmond
- Wellman Center for Photomedicine, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| | - William G. Austen
- Division of Plastic and Recontructive Surgery, Department of Surgery, Harvard Medical SchoolMassachusetts General Hospital 55 Fruit Street Boston Massachusetts 02114
| |
Collapse
|
175
|
Xu H, Huang S, Wang J, Lan Y, Feng L, Zhu M, Xiao Y, Cheng B, Xue W, Guo R. Enhanced cutaneous wound healing by functional injectable thermo-sensitive chitosan-based hydrogel encapsulated human umbilical cord-mesenchymal stem cells. Int J Biol Macromol 2019; 137:433-441. [PMID: 31271797 DOI: 10.1016/j.ijbiomac.2019.06.246] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2019] [Revised: 04/08/2019] [Accepted: 06/30/2019] [Indexed: 02/08/2023]
Abstract
Human umbilical cord-mesenchymal stem cells (hUCMSCs) can secrete a variety of cytokines and growth factors promoting wound repair. Hydrogel is suitable biomaterial to supply niche for cells adhesion and survival. This study constructed a functional injectable thermo-sensitive hydrogel (chitosan/glycerol phosphate sodium/cellulose nanocrystals, CS/GP/CNC) encapsulated hUCMSCs to repair full-thickness cutaneous wound. Addition of CNC to the CS/GP system not only accelerated the gel speed, but also greatly improved the mechanical properties of the gel and decreased degradation rate. The novel hydrogel was injectable and low toxicity. Histological detection showed that hydrogel-hUCMSCs combination significantly accelerated wound closure, microcirculation, tissue remodeling, re-epithelialization and hair follicle regeneration, and inhibited over-inflammation in the central and surrounding wounds. The hydrogel-hUCMSCs combination promoted collagen deposition and keratinocyte mature marker K1 expression, decreased inflammatory factors secretion namely TNF-α and IL-1β. The present data provides a potential strategy for treatment of non-healing chronic cutaneous wounds.
Collapse
Affiliation(s)
- Hongjie Xu
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China; Beogene Biotech (Guangzhou) Co., Ltd, Guangzhou 510663, China
| | - Shanghui Huang
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China
| | - Jingjing Wang
- Department of Neurology, Weihai Central Hospital, Weihai 264400, China
| | - Yong Lan
- Beogene Biotech (Guangzhou) Co., Ltd, Guangzhou 510663, China
| | - Longbao Feng
- Beogene Biotech (Guangzhou) Co., Ltd, Guangzhou 510663, China
| | - Meishu Zhu
- Department of Burn & Plastic Surgery, the First Affiliated Hospital of Shenzhen University, the Second People's Hospital of Shenzhen, Shenzhen 518035, China
| | - Yang Xiao
- Stem Cell Translational Medicine Center, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Biao Cheng
- Center of Wound Treatment, General Hospital of Southern Theater Command, PLA, Guangzhou 510010, China
| | - Wei Xue
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| | - Rui Guo
- Key Laboratory of Biomaterials of Guangdong Higher Education Institutes, Guangdong Provincial Engineering and Technological Research Center for Drug Carrier Development, Department of Biomedical Engineering, Jinan University, Guangzhou 510632, China.
| |
Collapse
|
176
|
Zheng C, Liu C, Chen H, Wang N, Liu X, Sun G, Qiao W. Effective wound dressing based on Poly (vinyl alcohol)/Dextran-aldehyde composite hydrogel. Int J Biol Macromol 2019; 132:1098-1105. [DOI: 10.1016/j.ijbiomac.2019.04.038] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/23/2019] [Accepted: 04/06/2019] [Indexed: 12/20/2022]
|
177
|
Hua Y, Gan Y, Li P, Song L, Shi C, Bao C, Yang Y, Zhou Q, Lin Q, Zhu L. Moldable and Removable Wound Dressing Based on Dynamic Covalent Cross-Linking of Thiol-Aldehyde Addition. ACS Biomater Sci Eng 2019; 5:4048-4053. [PMID: 33448806 DOI: 10.1021/acsbiomaterials.9b00459] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Yujie Hua
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Yibo Gan
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), 29 Gaotanyan Street, Chongqing 400038, P.R. China
- Institute of Rocket Force Medicine, College of Preventive Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University (Army Medical University), 30 Gaotanyan Street, Chongqing 400038, P.R. China
| | - Pei Li
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), 29 Gaotanyan Street, Chongqing 400038, P.R. China
| | - Lei Song
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), 29 Gaotanyan Street, Chongqing 400038, P.R. China
| | - Chunmeng Shi
- Institute of Rocket Force Medicine, College of Preventive Medicine, State Key Laboratory of Trauma, Burns and Combined Injury, Third Military Medical University (Army Medical University), 30 Gaotanyan Street, Chongqing 400038, P.R. China
| | - Chunyan Bao
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Yi Yang
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Qiang Zhou
- Department of Orthopedics, Southwest Hospital, Third Military Medical University (Army Medical University), 29 Gaotanyan Street, Chongqing 400038, P.R. China
- Bone and Trauma Center, The Third Affiliated Hospital of Chongqing Medical University (Gener Hospital), Chongqing 401120, P.R. China
| | - Qiuning Lin
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| | - Linyong Zhu
- Optogenetics & Synthetic Biology Interdisciplinary Research Center, State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237, P.R. China
| |
Collapse
|
178
|
Regenerative and durable small-diameter graft as an arterial conduit. Proc Natl Acad Sci U S A 2019; 116:12710-12719. [PMID: 31182572 DOI: 10.1073/pnas.1905966116] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Despite significant research efforts, clinical practice for arterial bypass surgery has been stagnant, and engineered grafts continue to face postimplantation challenges. Here, we describe the development and application of a durable small-diameter vascular graft with tailored regenerative capacity. We fabricated small-diameter vascular grafts by electrospinning fibrin tubes and poly(ε-caprolactone) fibrous sheaths, which improved suture retention strength and enabled long-term survival. Using surface topography in a hollow fibrin microfiber tube, we enable immediate, controlled perfusion and formation of a confluent endothelium within 3-4 days in vitro with human endothelial colony-forming cells, but a stable endothelium is noticeable at 4 weeks in vivo. Implantation of acellular or endothelialized fibrin grafts with an external ultrathin poly(ε-caprolactone) sheath as an interposition graft in the abdominal aorta of a severe combined immunodeficient Beige mouse model supports normal blood flow and vessel patency for 24 weeks. Mechanical properties of the implanted grafts closely approximate the native abdominal aorta properties after just 1 week in vivo. Fibrin mediated cellular remodeling, stable tunica intima and media formation, and abundant matrix deposition with organized collagen layers and wavy elastin lamellae. Endothelialized grafts evidenced controlled healthy remodeling with delayed and reduced macrophage infiltration alongside neo vasa vasorum-like structure formation, reduced calcification, and accelerated tunica media formation. Our studies establish a small-diameter graft that is fabricated in less than 1 week, mediates neotissue formation and incorporation into the native tissue, and matches the native vessel size and mechanical properties, overcoming main challenges in arterial bypass surgery.
Collapse
|
179
|
Tang Q, Plank TN, Zhu T, Yu H, Ge Z, Li Q, Li L, Davis JT, Pei H. Self-Assembly of Metallo-Nucleoside Hydrogels for Injectable Materials That Promote Wound Closure. ACS APPLIED MATERIALS & INTERFACES 2019; 11:19743-19750. [PMID: 31081327 DOI: 10.1021/acsami.9b02265] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Injectable hydrogels are increasingly being used as scaffolds for in situ tissue engineering and wound healing. Most of these injectable hydrogels are made from polymers, and there are fewer examples of such soft materials made via self-assembly of low-molecular weight gelators. We report the room-temperature synthesis of a functional hydrogel formed by mixing cytidine (C) with 0.5 equiv each of B(OH)3 and AgNO3. The structural basis for this supramolecular hydrogel (C-B-C·Ag+) involves orthogonal formation of cytidine borate diesters (C-B-C) and Ag+-stabilized C-C base pairs, namely, the C·Ag+·C dimer. The C-B-C·Ag+ hydrogels, which can have high water content (at least 99.6%), are stable (no degradation after 1 year in the light), stimuli-responsive, and self-supporting, with elastic moduli of up to 104 Pa. Incorporation of Ag+ ions into the gel matrix endows the C-B-C·Ag+ hydrogel with significant antibacterial capability. Importantly, the rapid switching between the sol and gel states for this supramolecular hydrogel, as a response to shear stress, enables 3D printing of a flexible medical patch made from the C-B-C·Ag+ hydrogel. The C-B-C·Ag+ hydrogel was used to promote the closure of burn wounds in a mouse model.
Collapse
Affiliation(s)
- Qian Tang
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Taylor N Plank
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Tong Zhu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Huizhen Yu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Zhilei Ge
- School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Qian Li
- School of Chemistry and Chemical Engineering , Shanghai Jiao Tong University , Shanghai 200240 , China
| | - Li Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| | - Jeffery T Davis
- Department of Chemistry and Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Hao Pei
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering , East China Normal University , 500 Dongchuan Road , Shanghai 200241 , P. R. China
| |
Collapse
|
180
|
Yang DY, Ko K, Lee SH, Moon DG, Kim JW, Lee WK. Efficacy and safety of newly developed cross-linked dextran gel injection for glans penis augmentation with a novel technique. Asian J Androl 2019; 20:80-84. [PMID: 28303807 PMCID: PMC5753559 DOI: 10.4103/aja.aja_1_17] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
There is no safe and effective standard method for glans penis augmentation. Furthermore, there has been scant research on glans penis augmentation due to a poor understanding of glans anatomy, technical difficulty, and a lack of suitable substances for augmentation. Cross-linked dextran gel is a newly developed filler for soft-tissue augmentation. We evaluated the efficacy and safety of using a novel technique to inject cross-linked dextran gel for glans penis augmentation during a 24-week follow-up study. This prospective, single-arm, multicenter study enrolled twenty healthy adult men who underwent glans penis augmentation between June and August 2013. Cross-linked dextran gel was injected into the glans penis using a simple and easy technique. The sizes of the glans penis and individual satisfaction were assessed. Any adverse event was also reported. A total of 18 individuals were analyzed; two of them were lost to follow-up. The mean procedure time and injected volume were about 30 min and 6.6 ± 0.9 ml, respectively. The mean surface areas of the glans at baseline and 24 weeks were 20.0 ± 3.5 cm2 and 33.6 ± 5.4 cm2, respectively, representing a mean increase of 68.7% ± 14.0% (P < 0.001). Sixteen individuals (88.9%) were satisfied with the outcomes, and none were dissatisfied. There were no serious adverse events during the study. Cross-linked dextran gel injection for glans penis augmentation was easy and showed a significant augmentative effect on the glans penis, good durability, and was well tolerated without serious adverse events. Therefore, cross-linked dextran gel injection may be an effective, new technique for glans penis augmentation.
Collapse
Affiliation(s)
- Dae Yul Yang
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Kyungtae Ko
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Seong Ho Lee
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| | - Du Geon Moon
- Department of Urology, College of Medicine, Korea University, Seoul, Korea
| | - Jong Wook Kim
- Department of Urology, College of Medicine, Korea University, Seoul, Korea
| | - Won Ki Lee
- Department of Urology, College of Medicine, Hallym University, Chuncheon, Korea
| |
Collapse
|
181
|
Chantre CO, Hoerstrup SP, Parker KK. Engineering biomimetic and instructive materials for wound healing and regeneration. CURRENT OPINION IN BIOMEDICAL ENGINEERING 2019. [DOI: 10.1016/j.cobme.2019.04.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
|
182
|
Veith AP, Henderson K, Spencer A, Sligar AD, Baker AB. Therapeutic strategies for enhancing angiogenesis in wound healing. Adv Drug Deliv Rev 2019; 146:97-125. [PMID: 30267742 DOI: 10.1016/j.addr.2018.09.010] [Citation(s) in RCA: 391] [Impact Index Per Article: 78.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2018] [Revised: 09/15/2018] [Accepted: 09/24/2018] [Indexed: 12/19/2022]
Abstract
The enhancement of wound healing has been a goal of medical practitioners for thousands of years. The development of chronic, non-healing wounds is a persistent medical problem that drives patient morbidity and increases healthcare costs. A key aspect of many non-healing wounds is the reduced presence of vessel growth through the process of angiogenesis. This review surveys the creation of new treatments for healing cutaneous wounds through therapeutic angiogenesis. In particular, we discuss the challenges and advancement that have been made in delivering biologic, pharmaceutical and cell-based therapies as enhancers of wound vascularity and healing.
Collapse
|
183
|
Nagaraja S, Chen L, DiPietro LA, Reifman J, Mitrophanov AY. Predictive Approach Identifies Molecular Targets and Interventions to Restore Angiogenesis in Wounds With Delayed Healing. Front Physiol 2019; 10:636. [PMID: 31191342 PMCID: PMC6547939 DOI: 10.3389/fphys.2019.00636] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2018] [Accepted: 05/06/2019] [Indexed: 12/29/2022] Open
Abstract
Impaired angiogenesis is a hallmark of wounds with delayed healing, and currently used therapies to restore angiogenesis have limited efficacy. Here, we employ a computational simulation-based approach to identify influential molecular and cellular processes, as well as protein targets, whose modulation may stimulate angiogenesis in wounds. We developed a mathematical model that captures the time courses for platelets, 9 cell types, 29 proteins, and oxygen, which are involved in inflammation, proliferation, and angiogenesis during wound healing. We validated our model using previously published experimental data. By performing global sensitivity analysis on thousands of simulated wound-healing scenarios, we identified six processes (among the 133 modeled in total) whose modulation may improve angiogenesis in wounds. By simulating knockouts of 25 modeled proteins and by simulating different wound-oxygenation levels, we identified four proteins [namely, transforming growth factor (TGF)-β, vascular endothelial growth factor (VEGF), fibroblast growth factor-2 (FGF-2), and angiopoietin-2 (ANG-2)], as well as oxygen, as therapeutic targets for stimulating angiogenesis in wounds. Our modeling results indicated that simultaneous inhibition of TGF-β and supplementation of either FGF-2 or ANG-2 could be more effective in stimulating wound angiogenesis than the modulation of either protein alone. Our findings suggest experimentally testable intervention strategies to restore angiogenesis in wounds with delayed healing.
Collapse
Affiliation(s)
- Sridevi Nagaraja
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, United States Army Medical Research and Materiel Command, Fort Detrick, MD, United States.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, United States
| | - Lin Chen
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, United States
| | - Luisa A DiPietro
- Center for Wound Healing and Tissue Regeneration, College of Dentistry, University of Illinois at Chicago, Chicago, IL, United States
| | - Jaques Reifman
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, United States Army Medical Research and Materiel Command, Fort Detrick, MD, United States
| | - Alexander Y Mitrophanov
- Department of Defense, Biotechnology High Performance Computing Software Applications Institute, Telemedicine and Advanced Technology Research Center, United States Army Medical Research and Materiel Command, Fort Detrick, MD, United States.,The Henry M. Jackson Foundation for the Advancement of Military Medicine, Inc., Bethesda, MD, United States
| |
Collapse
|
184
|
Roussakis E, Ortines RV, Pinsker BL, Mooers CT, Evans CL, Miller LS, Calderón-Colón X. Theranostic biocomposite scaffold membrane. Biomaterials 2019; 212:17-27. [PMID: 31100480 DOI: 10.1016/j.biomaterials.2019.05.007] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 04/13/2019] [Accepted: 05/05/2019] [Indexed: 12/15/2022]
Abstract
Acute and chronic wounds affect millions and are associated with billions of dollars in healthcare costs. The use of healing markers, biochemical cues from biocompatible matrices and materials, and their correlation with wound healing has the potential to generate valuable diagnostic, prognostic, and therapeutic information. In this study, we developed a collagen-dextran oxygen-sensing biocomposite scaffold membrane in which a phosphorescent oxygen sensor was incorporated to monitor physiological oxygen using in vivo phosphorescence imaging in a preclinical mouse model of wound healing. The oxygen-sensing biocomposite scaffold membrane enabled the noninvasive and longitudinal monitoring of oxygenation changes in vivo in an approach compatible with commercially available preclinical in vivo imaging system instruments. This study provides a new and novel capability where a biocomposite material can serve as a biocompatible, biodegradable theranostic platform to promote and assess tissue oxygenation during wound healing.
Collapse
Affiliation(s)
- Emmanuel Roussakis
- (a)Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02129, USA
| | - Roger V Ortines
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Bret L Pinsker
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Cavin T Mooers
- Research and Exploratory Development Department, The Johns Hopkins University - Applied Physics Laboratory, Laurel, MD, 20723, USA
| | - Conor L Evans
- (a)Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, 02129, USA
| | - Lloyd S Miller
- Department of Dermatology, Johns Hopkins University School of Medicine, Baltimore, MD, 21231, USA
| | - Xiomara Calderón-Colón
- Research and Exploratory Development Department, The Johns Hopkins University - Applied Physics Laboratory, Laurel, MD, 20723, USA.
| |
Collapse
|
185
|
Caballero Aguilar LM, Kapsa RM, O'Connell CD, McArthur SL, Stoddart PR, Moulton SE. Controlled release from PCL-alginate microspheres via secondary encapsulation using GelMA/HAMA hydrogel scaffolds. SOFT MATTER 2019; 15:3779-3787. [PMID: 30989161 DOI: 10.1039/c8sm02575d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Controlling the release of bioactive agents has important potential applications in tissue engineering. While microspheres have been investigated to manipulate release rates, the majority of these investigations have been based on delivery into aqueous media, whereas the cellular environment in tissue engineering is more typically a hydrogel scaffold. If drug-loaded microspheres are introduced within scaffolds to deliver biologically active substances in situ, it is crucial to understand how the release rate is influenced by interactions between the microspheres and the scaffold. Here, we report the fabrication and characterization of a biodegradable scaffold that contains composite microspheres and is suitable for biological applications. Our approach evaluates the influence on the release profile of a model drug (FITC-dextran sulfate) from alginate and PCL-alginate microspheres within a hydrogel construct forming a secondary encapsulation. Increasing the degree of crosslinking in the secondary encapsulation matrix led to a slower cumulative release from 36% to 15%, from the alginate microspheres, whereas a decrease from 26% to 6% was observed for the PCL-alginate microspheres. These results suggest that the release of bioactive molecules can be fine tuned by independently engineering the properties of the scaffold and microspheres.
Collapse
Affiliation(s)
- Lilith M Caballero Aguilar
- ARC Centre of Excellence for Electromaterials Science, Faculty of Science, Engineering and Technology, Swinburne University of Technology, Melbourne, 3122, Australia.
| | | | | | | | | | | |
Collapse
|
186
|
Abstract
Developing a multiple functional wound dressing suitable for different stages of wound healing is important for patients with special wound such as burn or decubital ulcers. In this study, poly (vinyl alcohol) (PVA), dextran, and chitosan are integrated to produce ideal wound dressing where glutaraldehyde (GA) is used as the cross-linker. The result demonstrated that 6% PVA hydrogel with 0.25% chitosan was found to provide antimicrobial ability. The PVA/chitosan hydrogel combined with 4% dextran utilizing GA cross-linking also presents the high cell proliferation ability, which suggests that the hydrogel is potential as a wound dressing. In the following physical analyses, the addition of chitosan and dextran appeared to promote the thermostability, mechanical properties, water retention, and moisturizing ability in the PVA hydrogel. In conclusion, the PVA/chitosan/dextran hydrogel has promising potential such as high water content, antimicrobial property, and well cell proliferation, which can be applied to wound healing application.
Collapse
|
187
|
Kwak H, Shin S, Lee H, Hyun J. Formation of a keratin layer with silk fibroin-polyethylene glycol composite hydrogel fabricated by digital light processing 3D printing. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2018.12.023] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
|
188
|
Healing potential of injectable Aloe vera hydrogel loaded by adipose-derived stem cell in skin tissue-engineering in a rat burn wound model. Cell Tissue Res 2019; 377:215-227. [PMID: 30923912 DOI: 10.1007/s00441-019-03015-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Accepted: 02/27/2019] [Indexed: 01/08/2023]
Abstract
Adipose stem cells (ASCs) are a great promise in wound healing due to their potential in differentiating into various cell lineages and secreting growth factors. The purpose of this study is to evaluate the in vivo effects of Aloe vera hydrogel loaded by allogeneic ASCs on a rat burn wound model. The ASCs were isolated, cultured and mixed with 50% Aloe vera hydrogel and injected intradermally around the wound. Demineralized bone matrix (DBM) was used as dressing in the experiment. The burn wound-healing properties of different experimental groups were investigated by histopathological, molecular, scanning electron microscopic and biochemical analysis at the 7th, 14th and 28th days post-wounding. The Aloe vera and DBM-Aloe vera groups showed almost similar healing properties, while treatment by DBM-Aloe vera/ASCs significantly enhanced wound healing. The levels of transforming growth factor-β1 (TGF-β1) and interleukin-1β markedly decreased at the 7th day post-injury, in the DBM-Aloe vera/ASC-treated group, suggesting that this treatment regime subsided the inflammatory responses. Angiogenesis, re-epithelialization and the level of TGF-β1 in the wounds treated with DBM-Aloe vera/ASCs were also remarkably higher than those of other groups, at the 14th day post-injury. Besides, scar formation significantly decreased in the DBM-Aloe vera/ASC-treated wounds when compared with other groups. Our biochemical results were in agreement with the molecular and histopathological findings and strongly demonstrated that a DBM-Aloe vera/ASC composite can stimulate burn wound healing. These results suggest that the DBM-Aloe vera/ASC composite can be considered as a promising therapeutic strategy in the treatment of burn wounds.
Collapse
|
189
|
Amani S, Shahrooz R, Mortaz E, Hobbenaghi R, Mohammadi R, Baradar Khoshfetrat A. Histomorphometric and immunohistochemical evaluation of angiogenesis in ischemia by tissue engineering in rats: Role of mast cells. VETERINARY RESEARCH FORUM : AN INTERNATIONAL QUARTERLY JOURNAL 2019; 10:23-30. [PMID: 31183012 PMCID: PMC6522198 DOI: 10.30466/vrf.2019.34311] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/04/2017] [Accepted: 04/17/2018] [Indexed: 11/01/2022]
Abstract
The aim of this study was to find a proper method for improvement of ischemic condition in the rat hind limb and also to observe the efficacy of cell engraftment with alginate/gelatin three-dimensional scaffolds. Eighteen male Wistar rats weighing 200 to 250 g were randomly divided into three groups (n = 6) including a) ischemia group; in which femoral artery was removed after ligation at the distance of 5 mm, b) scaffold group; in which hydrogel scaffold was added to the site of transected femoral artery and c) test group; in which in addition to hydrogel scaffold, mast cells (MCs) were also added (1 × 106 cells). Analysis of capillary density, artery diameter, histomorphometric parameters and immunohistochemistry in transected location were done on day 14 after femoral artery transection. The average number of blood capillary was significantly higher in the test group than other groups. Also, the average number of medium and large blood vessels was significantly higher in the test group compared to ischemia and scaffold groups. Application of MCs through the use of hydrogel scaffolds (alginate/gelatin) can be considered as a new approach in the application of stem cells for therapeutic angiogenesis under ischemic conditions which can improve the angiogenesis process in patients with peripheral artery diseases.
Collapse
Affiliation(s)
- Saeede Amani
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University,Urmia, Iran;
| | - Rasoul Shahrooz
- Department of Basic Sciences, Faculty of Veterinary Medicine, Urmia University,Urmia, Iran;
| | - Esmaeil Mortaz
- Clinical Tuberculosis and Epidemiology Research Center, National Research Institute of Tuberculosis and Lung Diseases, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
- Department of Immunology, Faculty of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran;
| | - Rahim Hobbenaghi
- Department of Pathobiology, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | - Rahim Mohammadi
- Department of Surgery and Diagnostic Imaging, Faculty of Veterinary Medicine, Urmia University, Urmia, Iran;
| | | |
Collapse
|
190
|
Yu JR, Navarro J, Coburn JC, Mahadik B, Molnar J, Holmes JH, Nam AJ, Fisher JP. Current and Future Perspectives on Skin Tissue Engineering: Key Features of Biomedical Research, Translational Assessment, and Clinical Application. Adv Healthc Mater 2019; 8:e1801471. [PMID: 30707508 PMCID: PMC10290827 DOI: 10.1002/adhm.201801471] [Citation(s) in RCA: 94] [Impact Index Per Article: 18.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 01/04/2019] [Indexed: 12/20/2022]
Abstract
The skin is responsible for several important physiological functions and has enormous clinical significance in wound healing. Tissue engineered substitutes may be used in patients suffering from skin injuries to support regeneration of the epidermis, dermis, or both. Skin substitutes are also gaining traction in the cosmetics and pharmaceutical industries as alternatives to animal models for product testing. Recent biomedical advances, ranging from cellular-level therapies such as mesenchymal stem cell or growth factor delivery, to large-scale biofabrication techniques including 3D printing, have enabled the implementation of unique strategies and novel biomaterials to recapitulate the biological, architectural, and functional complexity of native skin. This progress report highlights some of the latest approaches to skin regeneration and biofabrication using tissue engineering techniques. Current challenges in fabricating multilayered skin are addressed, and perspectives on efforts and strategies to meet those limitations are provided. Commercially available skin substitute technologies are also examined, and strategies to recapitulate native physiology, the role of regulatory agencies in supporting translation, as well as current clinical needs, are reviewed. By considering each of these perspectives while moving from bench to bedside, tissue engineering may be leveraged to create improved skin substitutes for both in vitro testing and clinical applications.
Collapse
Affiliation(s)
- Justine R Yu
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
- University of Maryland School of Medicine, Baltimore, MD, 21201, USA
| | - Javier Navarro
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
| | - James C Coburn
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- Division of Biomedical Physics, Center for Devices and Radiological Health, U.S. Food and Drug Administration, Silver Spring, MD, 20903, USA
| | - Bhushan Mahadik
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
| | - Joseph Molnar
- Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - James H Holmes
- Wake Forest Baptist Medical Center, Winston-Salem, NC, 27157, USA
| | - Arthur J Nam
- Division of Plastic, Reconstructive and Maxillofacial Surgery, R. Adams Cowley Shock Trauma Center, University of Maryland, Baltimore, Baltimore, MD, 21201, USA
| | - John P Fisher
- Fischell Department of Bioengineering, University of Maryland, College Park, College Park, MD, 20742, USA
- NIH/NBIB Center for Engineering Complex Tissues, University of Maryland, College Park, College Park, MD, 20742, USA
| |
Collapse
|
191
|
Peter M, Singh A, Mohankumar K, Jeenger R, Joge PA, Gatne MM, Tayalia P. Gelatin-Based Matrices as a Tunable Platform To Study in Vitro and in Vivo 3D Cell Invasion. ACS APPLIED BIO MATERIALS 2019; 2:916-929. [PMID: 35016295 DOI: 10.1021/acsabm.8b00767] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Hydrogels have been used as synthetic mimics of 3D extracellular matrices (ECM) and their physical properties like stiffness, degradability, and porosity have been known to influence the behavior of encapsulated cells. However, to understand the role of individual properties, the influence of biophysical cues should be decoupled from biochemical ones. In this study, we have used hydrogels as a tunable model matrix to develop a 3D cell culture platform for studying cell invasion. Inert polyethylene (glycol) diacrylate (PEGDA) and cell adhesive gelatin methacryloyl (GELMA) were blended in varying compositions, followed by UV-mediated photo polymerization to obtain hydrogels with varying stiffness, degradation, and cell adhesive properties. We developed two hydrogel matrix systems, namely, PEGDA-GELMA (containing a larger proportion of PEGDA) and GELMA-PEGDA (containing predominantly GELMA), and characterized them for differences in pore size, swelling ratio, storage modulus, degradability, and biocompatibility of the matrix. Both hydrogel systems had similar pore dimensions and swelling behavior, but PEGDA-GELMA was found to be stiffer and nondegradable, while GELMA-PEGDA was softer and degradable. Accordingly, MDA-MB-231 breast cancer cells encapsulated in these matrices showed a spheroidal morphology in PEGDA-GELMA hydrogels and were more spindle-shaped in GELMA-PEGDA hydrogels, confirming that size and extent of spreading of cells were influenced by the type of these hydrogels. The softer GELMA-PEGDA matrices readily allowed invasion of MDA-MB-231 cells in 3D and showed differences in epithelial-mesenchymal transition (EMT) gene expression of these cells. We further demonstrated the invasion and sprouting of endothelial cells using a chick aortic arch assay, exhibiting the utility of softer matrices to study 3D cell invasion for multiple applications. We also implanted these matrices in mice and showed that soft gelatin-based hydrogels allow cell infiltration in vivo. Results from our study highlight the tunability of this matrix system and the role of matrix constitution in influencing cell invasion in a 3D microenvironment.
Collapse
Affiliation(s)
- Mathew Peter
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.,Department of Biomedical Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education (MAHE), Manipal, Karnataka 576104, India
| | - Archana Singh
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Kumaravel Mohankumar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India.,Veterinary Medicine and Biomedical Sciences, Texas A&M University, College Station, Texas 77843, United States
| | - Rajeev Jeenger
- Department of Veterinary Pharmacology and Toxicology, Bombay Veterinary College, Parel, Mumbai 400012, India
| | - Puja Arun Joge
- Department of Veterinary Pharmacology and Toxicology, Bombay Veterinary College, Parel, Mumbai 400012, India
| | - Madhumanjiri Mukulesh Gatne
- Department of Veterinary Pharmacology and Toxicology, Bombay Veterinary College, Parel, Mumbai 400012, India
| | - Prakriti Tayalia
- Department of Biosciences and Bioengineering, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| |
Collapse
|
192
|
Gupta A, Kowalczuk M, Heaselgrave W, Britland ST, Martin C, Radecka I. The production and application of hydrogels for wound management: A review. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.12.019] [Citation(s) in RCA: 125] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
193
|
Westman AM, Goldstein RL, Bradica G, Goldman SM, Randolph MA, Gaut JP, Vacanti JP, Hoganson DM. Decellularized extracellular matrix microparticles seeded with bone marrow mesenchymal stromal cells for the treatment of full-thickness cutaneous wounds. J Biomater Appl 2019; 33:1070-1079. [PMID: 30651054 DOI: 10.1177/0885328218824759] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Extracellular matrix materials mechanically dissociated into submillimeter particles have a larger surface area than sheet materials and enhanced cellular attachment. Decellularized porcine mesothelial extracellular matrix microparticles were seeded with bone marrow-derived mesenchymal stromal cells and cultured in a rotating bioreactor. The mesenchymal stromal cells attached and grew to confluency on the microparticles. The cell-seeded microparticles were then encapsulated in varying concentrations of fibrin glue, and the cells migrated rapidly off the microparticles. The combination of microparticles and mesenchymal stromal cells was then applied to a splinted full-thickness cutaneous in vivo wound model. There was evidence of increased cell infiltration and collagen deposition in mesenchymal stromal cells-treated wounds. Cell-seeded microparticles have potential as a cell delivery and paracrine therapy in impaired healing environments.
Collapse
Affiliation(s)
- Amanda M Westman
- 1 Plastic Surgery Research Laboratory, Massachusetts General Hospital, MA, USA
| | - Rachel L Goldstein
- 1 Plastic Surgery Research Laboratory, Massachusetts General Hospital, MA, USA
| | | | | | - Mark A Randolph
- 6 Laboratory of Musculoskeletal Tissue Engineering, Massachusetts General Hospital, Boston, MA USA
| | - Joseph P Gaut
- 3 Department of Pathology, Washington University in St. Louis, St. Louis, MO, USA
| | - Joseph P Vacanti
- 4 Laboratory for Tissue Engineering and Organ Fabrication, Massachusetts General Hospital, Boston, MA, USA
| | - David M Hoganson
- 5 Department of Cardiac Surgery, Boston Children's Hospital, Boston, MA, USA
| |
Collapse
|
194
|
Yin F, Lin L, Zhan S. Preparation and properties of cellulose nanocrystals, gelatin, hyaluronic acid composite hydrogel as wound dressing. JOURNAL OF BIOMATERIALS SCIENCE-POLYMER EDITION 2019; 30:190-201. [PMID: 30556771 DOI: 10.1080/09205063.2018.1558933] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Gelatin (GA), hyaluronic acid (HA) and cellulose nanocrystals (CNC) are promising materials for skin wound care. In this study the GA-HA-CNC hydrogels were prepared by cross-linking and freeze-drying. The composition and mechanism of GA-HA-CNC hydrogels were confirmed by FTIR. The morphology and pore size were obtained by SEM. We accessed the physical property from rheological results and swelling ratio. NIH-3T3 cells were inoculated into the hydrogels and cultured for different days, then we analyzed the cytotoxicity of the prepared hydrogels by CCK-8 methods and live/dead pictorial diagram using staining kits. FTIR revealed the combination between GA, HA and CNC was attributed to the amide bond and hydrogen bonding. SEM results showed that the drying GA-HA-CNC hydrogels were spongy, with the pore diameter about 80-120 µm. CNC significantly enhanced the property of the hydrogels and play a vital role according to the rheology and swelling results. The cells culture results showed that NIH-3T3 cells can attached to, grow, and proliferate well on the GA-HA-CNC hydrogels. In conclusion, the natural GA-HA-CNC hydrogel has great potential for the skin wound repair.
Collapse
Affiliation(s)
| | - Lanfang Lin
- b Linyi Lanshan Center for Disease Control and Prevention , Linyi , China
| | - Shijuan Zhan
- c Second Department of Oncology , Linyi People's Hospital , Linyi , China
| |
Collapse
|
195
|
Crosslinking dextran electrospun nanofibers via borate chemistry: Proof of concept for wound patches. Eur Polym J 2019. [DOI: 10.1016/j.eurpolymj.2018.11.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
196
|
Anton-Sales I, Beekmann U, Laromaine A, Roig A, Kralisch D. Opportunities of Bacterial Cellulose to Treat Epithelial Tissues. Curr Drug Targets 2019; 20:808-822. [PMID: 30488795 PMCID: PMC7046991 DOI: 10.2174/1389450120666181129092144] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/22/2018] [Accepted: 11/07/2018] [Indexed: 12/17/2022]
Abstract
In this mini-review, we highlight the potential of the biopolymer bacterial cellulose to treat damaged epithelial tissues. Epithelial tissues are cell sheets that delimitate both the external body surfaces and the internal cavities and organs. Epithelia serve as physical protection to underlying organs, regulate the diffusion of molecules and ions, secrete substances and filtrate body fluids, among other vital functions. Because of their continuous exposure to environmental stressors, damage to epithelial tissues is highly prevalent. Here, we first compare the properties of bacterial cellulose to the current gold standard, collagen, and then we examine the use of bacterial cellulose patches to heal specific epithelial tissues; the outer skin, the ocular surface, the oral mucosa and other epithelial surfaces. Special emphasis is made on the dermis since, to date, this is the most widespread medical use of bacterial cellulose. It is important to note that some epithelial tissues represent only the outermost layer of more complex structures such as the skin or the cornea. In these situations, depending on the penetration of the lesion, bacterial cellulose might also be involved in the regeneration of, for instance, inner connective tissue.
Collapse
Affiliation(s)
| | | | - Anna Laromaine
- Address correspondence to these authors at the Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalunya, Spain; Tel: +34935801853; E-mails: ;
| | - Anna Roig
- Address correspondence to these authors at the Institute of Materials Science of Barcelona (ICMAB-CSIC), 08193 Bellaterra, Catalunya, Spain; Tel: +34935801853; E-mails: ;
| | | |
Collapse
|
197
|
Rodrigues M, Kosaric N, Bonham CA, Gurtner GC. Wound Healing: A Cellular Perspective. Physiol Rev 2019; 99:665-706. [PMID: 30475656 PMCID: PMC6442927 DOI: 10.1152/physrev.00067.2017] [Citation(s) in RCA: 1132] [Impact Index Per Article: 226.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2017] [Revised: 06/25/2018] [Accepted: 06/28/2018] [Indexed: 02/08/2023] Open
Abstract
Wound healing is one of the most complex processes in the human body. It involves the spatial and temporal synchronization of a variety of cell types with distinct roles in the phases of hemostasis, inflammation, growth, re-epithelialization, and remodeling. With the evolution of single cell technologies, it has been possible to uncover phenotypic and functional heterogeneity within several of these cell types. There have also been discoveries of rare, stem cell subsets within the skin, which are unipotent in the uninjured state, but become multipotent following skin injury. Unraveling the roles of each of these cell types and their interactions with each other is important in understanding the mechanisms of normal wound closure. Changes in the microenvironment including alterations in mechanical forces, oxygen levels, chemokines, extracellular matrix and growth factor synthesis directly impact cellular recruitment and activation, leading to impaired states of wound healing. Single cell technologies can be used to decipher these cellular alterations in diseased states such as in chronic wounds and hypertrophic scarring so that effective therapeutic solutions for healing wounds can be developed.
Collapse
Affiliation(s)
- Melanie Rodrigues
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Nina Kosaric
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Clark A Bonham
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| | - Geoffrey C Gurtner
- Department of Surgery, Stanford University School of Medicine , Stanford, California
| |
Collapse
|
198
|
Alderfer L, Wei A, Hanjaya-Putra D. Lymphatic Tissue Engineering and Regeneration. J Biol Eng 2018; 12:32. [PMID: 30564284 PMCID: PMC6296077 DOI: 10.1186/s13036-018-0122-7] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Accepted: 11/19/2018] [Indexed: 12/22/2022] Open
Abstract
The lymphatic system is a major circulatory system within the body, responsible for the transport of interstitial fluid, waste products, immune cells, and proteins. Compared to other physiological systems, the molecular mechanisms and underlying disease pathology largely remain to be understood which has hindered advancements in therapeutic options for lymphatic disorders. Dysfunction of the lymphatic system is associated with a wide range of disease phenotypes and has also been speculated as a route to rescue healthy phenotypes in areas including cardiovascular disease, metabolic syndrome, and neurological conditions. This review will discuss lymphatic system functions and structure, cell sources for regenerating lymphatic vessels, current approaches for engineering lymphatic vessels, and specific therapeutic areas that would benefit from advances in lymphatic tissue engineering and regeneration.
Collapse
Affiliation(s)
- Laura Alderfer
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556 USA
| | - Alicia Wei
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556 USA
| | - Donny Hanjaya-Putra
- Department of Aerospace and Mechanical Engineering, Bioengineering Graduate Program, University of Notre Dame, Notre Dame, IN 46556 USA
- Department of Chemical and Biomolecular Engineering, University of Notre Dame, Notre Dame, IN 46656 USA
- Harper Cancer Research Institute, University of Notre Dame, Notre Dame, IN 46556 USA
- Center for Stem Cells and Regenerative Medicine, University of Notre Dame, Notre Dame, IN 46556 USA
- Advanced Diagnostics and Therapeutics, University of Notre Dame, Notre Dame, IN 46556 USA
- Center for Nanoscience and Technology (NDnano), University of Notre Dame, Notre Dame, IN 46556 USA
| |
Collapse
|
199
|
Morris AH, Lee H, Xing H, Stamer DK, Tan M, Kyriakides TR. Tunable Hydrogels Derived from Genetically Engineered Extracellular Matrix Accelerate Diabetic Wound Healing. ACS APPLIED MATERIALS & INTERFACES 2018; 10:41892-41901. [PMID: 30424595 PMCID: PMC9996546 DOI: 10.1021/acsami.8b08920] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Hydrogels composed of solubilized decellularized extracellular matrix (ECM) are attractive materials because they combine the complexity of native ECM with injectability and ease of use. Nevertheless, these materials are typically only tunable by altering the concentration, which alters the ligand landscape, or by incorporating synthetic components, which can result in an unfavorable host response. Herein, we demonstrate the fabrication of genetically tunable ECM-derived materials, by utilizing wild type (WT) and (thrombospondin-2 knockout) TSP-2 KO decellularized skins to prepare hydrogels. The resulting materials exhibited distinct mechanical properties characterized by rheology and different concentrations of collagens when characterized by quantitative proteomics. Mixtures of the gels achieved intermediate effects between the WT and the KO, permitting tunability of the gel properties. In vivo, the hydrogels exhibited tunable cell invasion with a correlation between the content of TSP-2 KO hydrogel and the extent of cell invasion. Additionally, TSP-2 KO hydrogels significantly improved diabetic wound healing at 10 and 21 days. Furthermore, hydrogels derived from genetically engineered in vitro cell-derived matrix mimicked the trends observed for tissue-derived matrix, providing a platform for faster screening of novel manipulations and easier clinical translation. Overall, we demonstrate that genetic engineering approaches impart tunability to ECM-based hydrogels and can result in materials capable of enhanced regeneration.
Collapse
Affiliation(s)
- Aaron H. Morris
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
- Vascular Biology and Therapeutics Program, Yale University, New Haven, Connecticut 06511, United States
| | - Hudson Lee
- Vascular Biology and Therapeutics Program, Yale University, New Haven, Connecticut 06511, United States
| | - Hao Xing
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
- Vascular Biology and Therapeutics Program, Yale University, New Haven, Connecticut 06511, United States
| | - Danielle K. Stamer
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Marina Tan
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
| | - Themis R. Kyriakides
- Department of Biomedical Engineering, Yale University, New Haven, Connecticut 06511, United States
- Department of Pathology, Yale University, New Haven, Connecticut 06511, United States
- Vascular Biology and Therapeutics Program, Yale University, New Haven, Connecticut 06511, United States
| |
Collapse
|
200
|
Kumar S, Majhi RK, Sanyasi S, Goswami C, Goswami L. Acrylic acid grafted tamarind kernel polysaccharide-based hydrogel for bone tissue engineering in absence of any osteo-inducing factors. Connect Tissue Res 2018; 59:111-121. [PMID: 29458266 DOI: 10.1080/03008207.2018.1442444] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
PURPOSE With increased life expectancy, disorders in lifestyle and other clinical conditions, and the changes in the connective tissues such as in bone, impose diverse biomedical problems. Cells belong to osteogenic lineages are extremely specific for their surface requirements. Therefore, suitable surfaces are the critical bottle neck for successful bone tissue engineering. This study involves assessment of polysaccharide-based hydrogel which effectively allows growth, differentiation and mineralisation of osteogenic cells even in the absence of osteogenic inducing factors. MATERIALS AND METHODS Tamarind Kernel Polysaccharide was grafted with acrylic acid at different mole ratio. The critical parameter, surface morphology for bio application was assessed by SEM. MTT assay has been performed with hydrogels on Saos-2 cells. The biocompatibility and adhesion of different cell lines (F-11, Saos-2, Raw 264.7 and MSCs) on hydrogel surface was performed by Phalloidin and DAPI staining. Further the differentiation, mineralization and expression of different osteogenic markers, ALP assay, Alizarin Red staining and q-PCR was performed. RESULTS The hydrogels show highly porous and interconnected pores. MTT assay demonstrates the hydrogel have no cytotoxicity towards Saos-2 cells and are suitable for proliferation of different lineage of cell lines. ALP, Alizarin red staining and q-PCR assay shows that the hydrogel surface enhances the differentiation, mineralization and expression of different osteogenic genes in Saos-2 cells in the absence of any osteogenic inducing factors. Conclusion Synthesized hydrogel surface triggers signalling events towards osteogenesis even in the absence of added growth factors. We proposed that this material can be used for effective bone tissue engineering in vitro at low cost.
Collapse
Affiliation(s)
- Satish Kumar
- a School of Biotechnology , KIIT University , Bhubaneswar , India
| | - Rakesh Kumar Majhi
- b School of Biological Sciences , National Institute of Science Education and Research , Bhubaneswar , Orissa , India.,c Homi Bhabha National Institute, Training School Complex , Mumbai , India
| | - Sridhar Sanyasi
- a School of Biotechnology , KIIT University , Bhubaneswar , India
| | - Chandan Goswami
- b School of Biological Sciences , National Institute of Science Education and Research , Bhubaneswar , Orissa , India.,c Homi Bhabha National Institute, Training School Complex , Mumbai , India
| | - Luna Goswami
- a School of Biotechnology , KIIT University , Bhubaneswar , India
| |
Collapse
|