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Ahmed K, Tauseef H, Ainuddin JA, Zafar M, Khan I, Salim A, Mirza MR, Mohiuddin OA. Assessment of the proteome profile of decellularized human amniotic membrane and its biocompatibility with umbilical cord-derived mesenchymal stem cells. J Biomed Mater Res A 2024; 112:1041-1056. [PMID: 38380793 DOI: 10.1002/jbm.a.37685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 01/29/2024] [Accepted: 02/02/2024] [Indexed: 02/22/2024]
Abstract
Extracellular matrix-based bio-scaffolds are useful for tissue engineering as they retain the unique structural, mechanical, and physiological microenvironment of the tissue thus facilitating cellular attachment and matrix activities. However, considering its potential, a comprehensive understanding of the protein profile remains elusive. Herein, we evaluate the impact of decellularization on the human amniotic membrane (hAM) based on its proteome profile, physicochemical features, as well as the attachment, viability, and proliferation of umbilical cord-derived mesenchymal stem cells (hUC-MSC). Proteome profiles of decellularized hAM (D-hAM) were compared with hAM, and gene ontology (GO) enrichment analysis was performed. Proteomic data revealed that D-hAM retained a total of 249 proteins, predominantly comprised of extracellular matrix proteins including collagens (collagen I, collagen IV, collagen VI, collagen VII, and collagen XII), proteoglycans (biglycan, decorin, lumican, mimecan, and versican), glycoproteins (dermatopontin, fibrinogen, fibrillin, laminin, and vitronectin), and growth factors including transforming growth factor beta (TGF-β) and fibroblast growth factor (FGF) while eliminated most of the intracellular proteins. Scanning electron microscopy was used to analyze the epithelial and basal surfaces of D-hAM. The D-hAM displayed variability in fibril morphology and porosity as compared with hAM, showing loosely packed collagen fibers and prominent large pore areas on the basal side of D-hAM. Both sides of D-hAM supported the growth and proliferation of hUC-MSC. Comparative investigations, however, demonstrated that the basal side of D-hAM displayed higher hUC-MSC proliferation than the epithelial side. These findings highlight the importance of understanding the micro-environmental differences between the two sides of D-hAM while optimizing cell-based therapeutic applications.
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Affiliation(s)
- Kainat Ahmed
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Haadia Tauseef
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | | | - Muneeza Zafar
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Irfan Khan
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Asmat Salim
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Munazza Raza Mirza
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
| | - Omair Anwar Mohiuddin
- Dr. Panjwani Center for Molecular Medicine and Drug Research, International Center for Chemical and Biological Sciences, University of Karachi, Karachi, Pakistan
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Goldberg LA, Zomer HD, McFetridge C, McFetridge PS. Silica nanoparticles enhance interfacial self-adherence of a multi-layered extracellular matrix scaffold for vascular tissue regeneration. Biotechnol Lett 2024; 46:469-481. [PMID: 38368285 DOI: 10.1007/s10529-024-03469-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2023] [Revised: 12/03/2023] [Accepted: 01/10/2024] [Indexed: 02/19/2024]
Abstract
PURPOSE Based on the clinical need for grafts for vascular tissue regeneration, our group developed a customizable scaffold derived from the human amniotic membrane. Our approach consists of rolling the decellularized amniotic membrane around a mandrel to form a multilayered tubular scaffold with tunable diameter and wall thickness. Herein, we aimed to investigate if silica nanoparticles (SiNP) could enhance the adhesion of the amnion layers within these rolled grafts. METHODS To test this, we assessed the structural integrity and mechanical properties of SiNP-treated scaffolds. Mechanical tests were repeated after six months to evaluate adhesion stability in aqueous environments. RESULTS Our results showed that the rolled SiNP-treated scaffolds maintained their tubular shape upon hydration, while non-treated scaffolds collapsed. By scanning electron microscopy, SiNP-treated scaffolds presented more densely packed layers than untreated controls. Mechanical analysis showed that SiNP treatment increased the scaffold's tensile strength up to tenfold in relation to non-treated controls and changed the mechanism of failure from interfacial slipping to single-point fracture. The nanoparticles reinforced the scaffolds both at the interface between two distinct layers and within each layer of the extracellular matrix. Finally, SiNP-treated scaffolds significantly increased the suture pullout force in comparison to untreated controls. CONCLUSION Our study demonstrated that SiNP prevents the unraveling of a multilayered extracellular matrix graft while improving the scaffolds' overall mechanical properties. In addition to the generation of a robust biomaterial for vascular tissue regeneration, this novel layering technology is a promising strategy for a number of bioengineering applications.
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Affiliation(s)
- Leslie A Goldberg
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Helena D Zomer
- Department of Physiological Sciences, University of Florida, Gainesville, FL, USA
| | - Calum McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA
| | - Peter S McFetridge
- J. Crayton Pruitt Family Department of Biomedical Engineering, University of Florida, Biomedical Sciences Building JG-56, 1275 Center Drive, Gainesville, FL, 32611-6131, USA.
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Jafari A, Mirzaei Y, Mer AH, Rezaei-Tavirani M, Jafari Z, Niknejad H. Comparison of the effects of preservation methods on structural, biological, and mechanical properties of the human amniotic membrane for medical applications. Cell Tissue Bank 2024; 25:305-323. [PMID: 37840108 DOI: 10.1007/s10561-023-10114-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Accepted: 09/20/2023] [Indexed: 10/17/2023]
Abstract
Amniotic membrane (AM), the innermost layer of the placenta, is an exceptionally effective biomaterial with divers applications in clinical medicine. It possesses various biological functions, including scar reduction, anti-inflammatory properties, support for epithelialization, as well as anti-microbial, anti-fibrotic and angio-modulatory effects. Furthermore, its abundant availability, cost-effectiveness, and ethical acceptability make it a compelling biomaterial in the field of medicine. Given the potential unavailability of fresh tissue when needed, the preservation of AM is crucial to ensure a readily accessible and continuous supply for clinical use. However, preserving the properties of AM presents a significant challenge. Therefore, the establishment of standardized protocols for the collection and preservation of AM is vital to ensure optimal tissue quality and enhance patient safety. Various preservation methods, such as cryopreservation, lyophilization, and air-drying, have been employed over the years. However, identifying a preservation method that effectively safeguards AM properties remains an ongoing endeavor. This article aims to review and discuss different sterilization and preservation procedures for AM, as well as their impacts on its histological, physical, and biochemical characteristics.
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Affiliation(s)
- Ameneh Jafari
- Student Research Committee, Shahid Beheshti University of Medical Sciences, Tehran, Iran
- Proteomics Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Yousef Mirzaei
- Department of Medical Biochemical Analysis, Cihan University-Erbil, Erbil, Kurdistan Region, Iraq
| | - Ali Hussein Mer
- Department of Nusring, Mergasour Technical Institute, Erbil Polytechnic University, Erbil, Iraq
| | | | - Zahra Jafari
- 9th Dey Manzariye Hospital, Isfahan University of Medical Sciences, Isfahan, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Echarte L, Grazioli G, Pereira L, Francia A, Pérez H, Kuzuian W, Vicentino W, Pardo H, Mombrú A, Maglia Á, Touriño C, Álvarez I. Processing methods for human amniotic membrane as scaffold for tissue engineering with mesenchymal stromal human cells. Cell Tissue Bank 2024; 25:269-283. [PMID: 35906514 DOI: 10.1007/s10561-022-10014-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2020] [Accepted: 04/27/2022] [Indexed: 11/30/2022]
Abstract
Tissue engineering is an interdisciplinary field that applies the principles of engineering and life sciences toward the development of biological substitutes that restore, maintain, or improve tissue function. The aims of this work were to compare chemically and physically processed human Amniotic Membranes (hAM) and analyze the cytocompatibility and proliferation rate (PR) of two primary human mesenchymal stromal cell lines, from different sources and donor conditions seeded over these scaffolds. The evaluated hAM processes were: cold shock to obtain a frozen amniotic membrane (FEAM) with remaining dead epithelial cells, denudation of hAM with trypsin for 20/10 min (DEAM20/10) or treatment with sodium dodecyl sulfate to decellularized hAM (DAM). All samples were sterilized with gamma radiation. The selection of the treated hAM to then generate composites was performed by scanning and transmission electron microscopy and characterization by X-ray diffraction, selecting DEAM10 and FEAM as scaffolds for cell seeding. Two sources of primary human stromal cells were used, both developed by our researchers, human Dental Pulp Stem Cells (hDPSC) from living donors and human Mesenchymal Stromal Cells (hMSC) from bone marrow isolated from brain dead donors. This last line of cells conveys a novel source of human cells that, to our knowledge, have not been tested as part of this type of construct. We developed four in vitro constructs without cytotoxicity signs and with different PR depending on the scaffolds and cells. hDPSC and hMSC grew over both FEAM and DEAM10, but DEAM10 allowed higher PR.
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Affiliation(s)
- L Echarte
- Área Terapia Celular y Medicina Regenerativa (ATCMR), Departamento Básico de Medicina, Hospital de Clínicas, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - G Grazioli
- Cátedra de Materiales Dentales, Facultad de Odontología UdelaR, Montevideo, Uruguay
| | - L Pereira
- Departamento de Biomateriales, Facultad de Química, Parque Científico Tecnológico de Pando, UdelaR, Canelones, Uruguay
| | - A Francia
- Facultad de Odontología UdelaR, Fisiología General y Bucodental, Montevideo, Uruguay
| | - H Pérez
- Facultad de Medicina, Instituto Nacional de Donación y Trasplante (INDT), Ministerio de Salud Pública- Hospital de Clínicas, Universidad de La República (UdelaR), Montevideo, Uruguay
| | - W Kuzuian
- Facultad de Medicina, Instituto Nacional de Donación y Trasplante (INDT), Ministerio de Salud Pública- Hospital de Clínicas, Universidad de La República (UdelaR), Montevideo, Uruguay
| | - W Vicentino
- Facultad de Medicina, Instituto Nacional de Donación y Trasplante (INDT), Ministerio de Salud Pública- Hospital de Clínicas, Universidad de La República (UdelaR), Montevideo, Uruguay
| | - H Pardo
- Departamento de Biomateriales, Facultad de Química, Parque Científico Tecnológico de Pando, UdelaR, Canelones, Uruguay
| | - A Mombrú
- Departamento de Biomateriales, Facultad de Química, Parque Científico Tecnológico de Pando, UdelaR, Canelones, Uruguay
| | - Á Maglia
- Facultad de Odontología UdelaR, Cátedra de Histología y Embriología Bucodental, Montevideo, Uruguay
| | - C Touriño
- Área Terapia Celular y Medicina Regenerativa (ATCMR), Departamento Básico de Medicina, Hospital de Clínicas, Facultad de Medicina, UdelaR, Montevideo, Uruguay
| | - I Álvarez
- Facultad de Medicina, Instituto Nacional de Donación y Trasplante (INDT), Ministerio de Salud Pública- Hospital de Clínicas, Universidad de La República (UdelaR), Montevideo, Uruguay.
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Sarvari R, Keyhanvar P, Agbolaghi S, Roshangar L, Bahremani E, Keyhanvar N, Haghdoost M, Keshel SH, Taghikhani A, Firouzi N, Valizadeh A, Hamedi E, Nouri M. A comprehensive review on methods for promotion of mechanical features and biodegradation rate in amniotic membrane scaffolds. J Mater Sci Mater Med 2022; 33:32. [PMID: 35267104 PMCID: PMC8913518 DOI: 10.1007/s10856-021-06570-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Accepted: 06/07/2021] [Indexed: 06/14/2023]
Abstract
Amniotic membrane (AM) is a biological tissue that surrounds the fetus in the mother's womb. It has pluripotent cells, immune modulators, collagen, cytokines with anti-fibrotic and anti-inflammatory effect, matrix proteins, and growth factors. In spite of the biological characteristics, some results have been released in preventing the adhesion on traumatized surfaces. Application of the AM as a scaffold is limited due to its low biomechanical resistance and rapid biodegradation. Therefore, for using the AM during surgery, its modification by different methods such as cross-linking of the membrane collagen is necessary, because the cross-linking is an effective way to reduce the rate of biodegradation of the biological materials. In addition, their cross-linking is likely an efficient way to increase the tensile properties of the material, so that they can be easily handled or sutured. In this regard, various methods related to cross-linking of the AM subsuming the composite materials, physical cross-linking, and chemical cross-linking with the glutraldehyde, carbodiimide, genipin, aluminum sulfate, etc. are reviewed along with its advantages and disadvantages in the current work.
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Affiliation(s)
- Raana Sarvari
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Peyman Keyhanvar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Medical Nanotechnology, School of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
- Convergence of Knowledge, Technology and Society Network (CKTSN), Universal Scientific Education and Research Network (USERN), Tabriz, Iran.
- ARTAN1100 Startup Accelerator, Tabriz, Iran.
| | - Samira Agbolaghi
- Chemical Engineering Department, Faculty of Engineering, Azarbaijan Shahid Madani University, P.O. BOX: 5375171379, Tabriz, Iran
| | - Leila Roshangar
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Erfan Bahremani
- Alavi Ophthalmological Treatment and Educational Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Keyhanvar
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran
- Gene Yakhteh Keyhan (Genik) Company (Ltd), Pharmaceutical Biotechnology Incubator, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Mehdi Haghdoost
- Department of Infectious Diseases, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Heidari Keshel
- Medical Nanotechnology Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Afsaneh Taghikhani
- Department of Chemistry, Tabriz Branch, Islamic Azad University, Tabriz, Iran
| | - Nima Firouzi
- Stem Cell and Tissue Engineering Research Laboratory, Chemical Engineering Faculty, Sahand University of Technology, P.O.BOX:51335-1996, Tabriz, Iran
- Phil and Penny Knight Campus for Accelerating Scientific Impact, University of Oregon Eugene, OR, 97403, USA
| | - Amir Valizadeh
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran
- Stem Cell Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
- Drug Applied Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Elham Hamedi
- Department of Tissue Engineering and Applied Cell Science, School of Advanced Technologies in Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Mohammad Nouri
- Stem Cell And Regenerative Medicine Institute, Tabriz University of Medical Sciences, Tabriz, Iran.
- Department of Reproductive Biology, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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6
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Bhattacharjee M, Escobar Ivirico JL, Kan HM, Shah S, Otsuka T, Bordett R, Barajaa M, Nagiah N, Pandey R, Nair LS, Laurencin CT. Injectable amnion hydrogel-mediated delivery of adipose-derived stem cells for osteoarthritis treatment. Proc Natl Acad Sci U S A 2022; 119:e2120968119. [PMID: 35046053 PMCID: PMC8794776 DOI: 10.1073/pnas.2120968119] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Accepted: 12/20/2021] [Indexed: 12/21/2022] Open
Abstract
Current treatment strategies for osteoarthritis (OA) predominantly address symptoms with limited disease-modifying potential. There is a growing interest in the use of adipose-derived stem cells (ADSCs) for OA treatment and developing biomimetic injectable hydrogels as cell delivery systems. Biomimetic injectable hydrogels can simulate the native tissue microenvironment by providing appropriate biological and chemical cues for tissue regeneration. A biomimetic injectable hydrogel using amnion membrane (AM) was developed which can self-assemble in situ and retain the stem cells at the target site. In the present study, we evaluated the efficacy of intraarticular injections of AM hydrogels with and without ADSCs in reducing inflammation and cartilage degeneration in a collagenase-induced OA rat model. A week after the induction of OA, rats were treated with control (phosphate-buffered saline), ADSCs, AM gel, and AM-ADSCs. Inflammation and cartilage regeneration was evaluated by joint swelling, analysis of serum by cytokine profiling and Raman spectroscopy, gross appearance, and histology. Both AM and ADSC possess antiinflammatory and chondroprotective properties to target the sites of inflammation in an osteoarthritic joint, thereby reducing the inflammation-mediated damage to the articular cartilage. The present study demonstrated the potential of AM hydrogel to foster cartilage tissue regeneration, a comparable regenerative effect of AM hydrogel and ADSCs, and the synergistic antiinflammatory and chondroprotective effects of AM and ADSC to regenerate cartilage tissue in a rat OA model.
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Affiliation(s)
- Maumita Bhattacharjee
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
| | - Jorge L Escobar Ivirico
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269
| | - Ho-Man Kan
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
| | - Shiv Shah
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269
| | - Takayoshi Otsuka
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
| | - Rosalie Bordett
- Connecticut Children's Innovation Center, School of Medicine, University of Connecticut Health, Farmington, CT 06032
| | - Mohammed Barajaa
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
| | - Naveen Nagiah
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
| | - Rishikesh Pandey
- Connecticut Children's Innovation Center, School of Medicine, University of Connecticut Health, Farmington, CT 06032
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269
| | - Lakshmi S Nair
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269
| | - Cato T Laurencin
- Connecticut Convergence Institute for Translation in Regenerative Engineering, University of Connecticut Health, Farmington, CT 06030;
- Raymond and Beverly Sackler Center for Biomedical, Biological, Physical and Engineering Sciences, University of Connecticut Health, Farmington, CT 06030
- Department of Orthopaedic Surgery, University of Connecticut Health, Farmington, CT 06030
- Department of Chemical and Biomolecular Engineering, University of Connecticut, Storrs, CT 06269
- Department of Biomedical Engineering, University of Connecticut, Storrs, CT 06269
- Department of Materials Science and Engineering, University of Connecticut, Storrs, CT 06269
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Shariatzadeh S, Shafiee S, Zafari A, Tayebi T, Yazdanpanah G, Majd A, Haj-Mirzaian A, Bahrami S, Niknejad H. Developing a pro-angiogenic placenta derived amniochorionic scaffold with two exposed basement membranes as substrates for cultivating endothelial cells. Sci Rep 2021; 11:22508. [PMID: 34795361 PMCID: PMC8602627 DOI: 10.1038/s41598-021-01922-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Accepted: 11/08/2021] [Indexed: 12/13/2022] Open
Abstract
Decellularized and de-epithelialized placenta membranes have widely been used as scaffolds and grafts in tissue engineering and regenerative medicine. Exceptional pro-angiogenic and biomechanical properties and low immunogenicity have made the amniochorionic membrane a unique substrate which provides an enriched niche for cellular growth. Herein, an optimized combination of enzymatic solutions (based on streptokinase) with mechanical scrapping is used to remove the amniotic epithelium and chorion trophoblastic layer, which resulted in exposing the basement membranes of both sides without their separation and subsequent damages to the in-between spongy layer. Biomechanical and biodegradability properties, endothelial proliferation capacity, and in vivo pro-angiogenic capabilities of the substrate were also evaluated. Histological staining, immunohistochemistry (IHC) staining for collagen IV, and scanning electron microscope demonstrated that the underlying amniotic and chorionic basement membranes remained intact while the epithelial and trophoblastic layers were entirely removed without considerable damage to basement membranes. The biomechanical evaluation showed that the scaffold is suturable. Proliferation assay, real-time polymerase chain reaction for endothelial adhesion molecules, and IHC demonstrated that both side basement membranes could support the growth of endothelial cells without altering endothelial characteristics. The dorsal skinfold chamber animal model indicated that both side basement membranes could promote angiogenesis. This bi-sided substrate with two exposed surfaces for cultivating various cells would have potential applications in the skin, cardiac, vascularized composite allografts, and microvascular tissue engineering.
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Affiliation(s)
- Siavash Shariatzadeh
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Sepehr Shafiee
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Zafari
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Tahereh Tayebi
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ghasem Yazdanpanah
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA
| | - Alireza Majd
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Arvin Haj-Mirzaian
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Soheyl Bahrami
- Ludwig Boltzmann Institute for Experimental and Clinical Traumatology in AUVA Research Center, Vienna, Austria
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Castiglia D, Fortugno P, Condorelli AG, Barresi S, De Luca N, Pizzi S, Neri I, Graziano C, Trojan D, Ponzin D, Rossi S, Zambruno G, Tartaglia M. A Novel Phenotype of Junctional Epidermolysis Bullosa with Transient Skin Fragility and Predominant Ocular Involvement Responsive to Human Amniotic Membrane Eyedrops. Genes (Basel) 2021; 12:716. [PMID: 34064633 PMCID: PMC8151857 DOI: 10.3390/genes12050716] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 05/07/2021] [Accepted: 05/08/2021] [Indexed: 02/06/2023] Open
Abstract
Junctional epidermolysis bullosa (JEB) is a clinically and genetically heterogeneous skin fragility disorder frequently caused by mutations in genes encoding the epithelial laminin isoform, laminin-332. JEB patients also present mucosal involvement, including painful corneal lesions. Recurrent corneal abrasions may lead to corneal opacities and visual impairment. Current treatments are merely supportive. We report a novel JEB phenotype distinguished by the complete resolution of skin fragility in infancy and persistent ocular involvement with unremitting and painful corneal abrasions. Biallelic LAMB3 mutations c.3052-5C>G and c.3492_3493delCG were identified as the molecular basis for this phenotype, with one mutation being a hypomorphic splice variant that allows residual wild-type laminin-332 production. The reduced laminin-332 level was associated with impaired keratinocyte adhesion. Then, we also investigated the therapeutic power of a human amniotic membrane (AM) eyedrop preparation for corneal lesions. AM were isolated from placenta donors, according to a procedure preserving the AM biological characteristics as a tissue, and confirmed to contain laminin-332. We found that AM eyedrop preparation could restore keratinocyte adhesion in an in vitro assay. Of note, AM eyedrop administration to the patient resulted in long-lasting remission of her ocular manifestations. Our findings suggest that AM eyedrops could represent an effective, non-invasive, simple-to-handle treatment for corneal lesions in patients with JEB and possibly other EB forms.
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Affiliation(s)
- Daniele Castiglia
- Laboratory of Molecular and Cell Biology, IDI-IRCCS, 00167 Rome, Italy; (P.F.); (N.D.L.)
| | - Paola Fortugno
- Laboratory of Molecular and Cell Biology, IDI-IRCCS, 00167 Rome, Italy; (P.F.); (N.D.L.)
| | - Angelo Giuseppe Condorelli
- Genodermatosis Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (A.G.C.); (G.Z.)
| | - Sabina Barresi
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (S.B.); (S.P.); (M.T.)
| | - Naomi De Luca
- Laboratory of Molecular and Cell Biology, IDI-IRCCS, 00167 Rome, Italy; (P.F.); (N.D.L.)
| | - Simone Pizzi
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (S.B.); (S.P.); (M.T.)
| | - Iria Neri
- Department of Experimental, Diagnostic and Specialty Medicine, Division of Dermatology, S. Orsola-Malpighi University Hospital, 40138 Bologna, Italy;
| | - Claudio Graziano
- Medical Genetics, S. Orsola-Malpighi University Hospital, 40138 Bologna, Italy;
| | | | - Diego Ponzin
- The Veneto Eye Bank Foundation, 30174 Venice, Italy;
| | - Sabrina Rossi
- Pathology Unit, Department of Laboratories, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy;
| | - Giovanna Zambruno
- Genodermatosis Unit, Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00165 Rome, Italy; (A.G.C.); (G.Z.)
| | - Marco Tartaglia
- Genetics and Rare Diseases Research Division, Bambino Gesù Children’s Hospital, IRCCS, 00146 Rome, Italy; (S.B.); (S.P.); (M.T.)
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9
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Chen Y, Fei W, Zhao Y, Wang F, Zheng X, Luan X, Zheng C. Sustained delivery of 17β-estradiol by human amniotic extracellular matrix (HAECM) scaffold integrated with PLGA microspheres for endometrium regeneration. Drug Deliv 2020; 27:1165-1175. [PMID: 32755258 PMCID: PMC7470125 DOI: 10.1080/10717544.2020.1801891] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2020] [Revised: 07/16/2020] [Accepted: 07/22/2020] [Indexed: 01/06/2023] Open
Abstract
The endometrial injury usually results in intrauterine adhesions (IUAs). However, there is no effective treatment to promote the regeneration of the endometrium currently. The decellularized amnion membrane (AM) is a promising material in human tissue repair and regeneration due to its biocompatibility, biodegradability, as well as the preservation of abundant bioactive components. Here, an innovative drug-delivering system based on human amniotic extracellular matrix (HAECM) scaffolds were developed to facilitate endometrium regeneration. The 17β-estradiol (E2) loaded PLGA microspheres (E2-MS) were well dispersed in the scaffolds without altering their high porosity. E2 released from E2-MS-HAECM scaffolds in vitro showed a decreased initial burst release followed with a sustained release for 21 days, which coincided with the female menstrual cycle. Results of cell proliferation suggested E2-MS-HAECM scaffolds had good biocompatibility and provided more biologic guidance of endometrial cell proliferation except for mechanical supports. Additionally, the mRNA expression of growth factors in endometrial cells indicated that HAECM scaffolds could upregulate the expression of EGF and IGF-1 to achieve endometrium regeneration. Therefore, these advantages provide the drug-loaded bioactive scaffolds with new choices for the treatments of IUAs.
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Affiliation(s)
- Yue Chen
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Weidong Fei
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Yunchun Zhao
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Fengmei Wang
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Xiaoling Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Xiaofei Luan
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
| | - Caihong Zheng
- Department of Pharmacy, Women’s Hospital, School of Medicine,
Zhejiang University, Hangzhou, China
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10
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Peiris HN, Vaswani K, Holland O, Koh YQ, Almughlliq FB, Reed S, Mitchell MD. Altered productions of prostaglandins and prostamides by human amnion in response to infectious and inflammatory stimuli identified by mutliplex mass spectrometry. Prostaglandins Leukot Essent Fatty Acids 2020; 154:102059. [PMID: 32014738 DOI: 10.1016/j.plefa.2020.102059] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2019] [Revised: 11/28/2019] [Accepted: 01/21/2020] [Indexed: 11/15/2022]
Abstract
INTRODUCTION Prostaglandins are critical for the onset and progression of labor in mammals, and are formed by the metabolism of arachidonic acid. The products of arachidonic acid, 2-arachidonoylglycerol (2-AG), and anandamide (AEA) have a similar lipid back bone but differing polar head groups, meaning that identification of these products by immunoassay can be difficult. MATERIALS AND METHODS In the current study, we present the use of mass spectrometry as multiplex method of identifying the specific end products of arachidonic and anandamide metabolism by human derived amnion explants treated with either an infectious agent (LPS) or inflammatory mediator (IL-1β or TNF-α). RESULTS Human amnion tissue explants treated with LPS, IL-1β, or TNF-α increased production of prostaglandin E2 (PGE2; p < 0.05) but decreased PGFM. Overall, PGE2 production was greater compared to the other prostaglandins and prostamides irrespective of treatment. CONCLUSIONS The findings of the current study are in keeping with the literature which describes amnion tissues as predominantly producing PGE2. The use of mass spectrometry for the differential identification of prostaglandins, prostamides, and other eicosanoids may help better elucidate mechanisms of preterm labor, and lead to new targets for the prediction of risk for preterm labor and/or birth.
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Affiliation(s)
- Hassendrini N Peiris
- School of Biomedical Science, Institute of Health and Biomedical Innovation - Centre for Children's Health Research, Faculty of Health, Queensland University of Technology, 62 Graham Street, South Brisbane, QLD 4101, Australia.
| | - Kanchan Vaswani
- School of Biomedical Science, Institute of Health and Biomedical Innovation - Centre for Children's Health Research, Faculty of Health, Queensland University of Technology, 62 Graham Street, South Brisbane, QLD 4101, Australia
| | - Olivia Holland
- School of Biomedical Science, Institute of Health and Biomedical Innovation - Centre for Children's Health Research, Faculty of Health, Queensland University of Technology, 62 Graham Street, South Brisbane, QLD 4101, Australia
| | - Yong Qin Koh
- School of Biomedical Science, Institute of Health and Biomedical Innovation - Centre for Children's Health Research, Faculty of Health, Queensland University of Technology, 62 Graham Street, South Brisbane, QLD 4101, Australia
| | - Fatema B Almughlliq
- University of Queensland Centre for Clinical Research, Building 71/918, Royal Brisbane and Women's Hospital, Herston, QLD 4029, Australia
| | - Sarah Reed
- University of Queensland Centre for Clinical Research, Building 71/918, Royal Brisbane and Women's Hospital, Herston, QLD 4029, Australia
| | - Murray D Mitchell
- School of Biomedical Science, Institute of Health and Biomedical Innovation - Centre for Children's Health Research, Faculty of Health, Queensland University of Technology, 62 Graham Street, South Brisbane, QLD 4101, Australia.
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11
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Yusof MFH, Hashim SNM, Zahari W, Chandra H, Noordin KBAA, Kannan TP, Hamid SSA, Mokhtar KI, Azlina A. Amniotic Membrane Enhance the Effect of Vascular Endothelial Growth Factor on the Angiogenic Marker Expression of Stem Cells from Human Exfoliated Deciduous Teeth. Appl Biochem Biotechnol 2020; 191:177-190. [PMID: 32096060 DOI: 10.1007/s12010-020-03266-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Accepted: 02/13/2020] [Indexed: 12/11/2022]
Abstract
Previously, it was reported that human amniotic membrane (AM) induced stem cells from human deciduous exfoliated teeth (SHED) endothelial-like-cell differentiation. This interesting effect of AM matrix on SHED demands further elucidation. Objective of this in vitro work was to study the effect of 24-h VEGF induced on SHED endothelial differentiation when seeded on acellular stromal side (SS) of AM matrix. Stemness of SHED was identified by flow cytometry. Cell attachment and morphological changes towards the matrix was observed by scanning electron microscopy. Protein expression of endothelial marker was examined by Western blot. The expression of stem cells and endothelial-specific gene markers of VEGF-induced SHED cultured on human AM was inspected via reverse transcriptase-polymerase chain reaction. Results showed SHED at both passages retain stemness property. Ang-1 protein was expressed in SHED. Cells treated with VEGF and cultured on AM transformed attached well to AM. VEGF-induced SHED expressed both stem cell and endothelial-specific markers throughout the treatments and timeline. Interestingly, prolonged VEGF treatment increased the expression of Cox-2 and VE-Cadherin genes in all treated groups when compared to SHED. It was concluded that the VEGF-induced SHED showed better expression of endothelial-specific markers when cultured on SS of AM, with prolonged VEGF treatment.
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Affiliation(s)
- Muhammad Fuad Hilmi Yusof
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Siti Nurnasihah Md Hashim
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Wafa' Zahari
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Hamshawagini Chandra
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | | | - Thirumulu Ponnuraj Kannan
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Suzina Sheikh Abdul Hamid
- Tissue Bank, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia
| | - Khairani Idah Mokhtar
- Kulliyyah of Dentistry, International Islamic University Malaysia, 25200, Kuantan, Pahang, Malaysia
| | - Ahmad Azlina
- School of Dental Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia.
- Human Genome Centre, School of Medical Sciences, Universiti Sains Malaysia, Health Campus, 16150, Kubang Kerian, Kelantan, Malaysia.
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12
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Yang Z, Li X, Zhang C, Sun N, Guo T, Lin J, Li F, Zhang J. Amniotic Membrane Extract Protects Islets From Serum-Deprivation Induced Impairments and Improves Islet Transplantation Outcome. Front Endocrinol (Lausanne) 2020; 11:587450. [PMID: 33363516 PMCID: PMC7753361 DOI: 10.3389/fendo.2020.587450] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Accepted: 11/04/2020] [Indexed: 11/25/2022] Open
Abstract
Islet culture prior to transplantation is a standard practice in many transplantation centers. Nevertheless, the abundant islet mass loss and function impairment during this serum-deprivation culture period restrain the success of islet transplantation. In the present study, we used a natural biomaterial derived product, amniotic membrane extract (AME), as medium supplementation of islet pretransplant cultivation to investigate its protective effect on islet survival and function and its underlying mechanisms, as well as the engraftment outcome of islets following AME treatment. Results showed that AME supplementation improved islet viability and function, and decreased islet apoptosis and islet loss during serum-deprived culture. This was associated with the increased phosphorylation of PI3K/Akt and MAPK/ERK signaling pathway. Moreover, transplantation of serum-deprivation stressed islets that were pre-treated with AME into diabetic mice revealed better blood glucose control and improved islet graft survival. In conclusion, AME could improve islet survival and function in vivo and in vitro, and was at least partially through increasing phosphorylation of PI3K/Akt and MAPK/ERK signaling pathway.
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13
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Henry JJD, Delrosario L, Fang J, Wong SY, Fang Q, Sievers R, Kotha S, Wang A, Farmer D, Janaswamy P, Lee RJ, Li S. Development of Injectable Amniotic Membrane Matrix for Postmyocardial Infarction Tissue Repair. Adv Healthc Mater 2020; 9:e1900544. [PMID: 31778043 PMCID: PMC6986802 DOI: 10.1002/adhm.201900544] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2019] [Revised: 10/03/2019] [Indexed: 12/16/2022]
Abstract
Ischemic heart disease represents the leading cause of death worldwide. Heart failure following myocardial infarction (MI) is associated with severe fibrosis formation and cardiac remodeling. Recently, injectable hydrogels have emerged as a promising approach to repair the infarcted heart and improve heart function through minimally invasive administration. Here, a novel injectable human amniotic membrane (hAM) matrix is developed to enhance cardiac regeneration following MI. Human amniotic membrane is isolated from human placenta and engineered to be a thermoresponsive, injectable gel around body temperature. Ultrasound-guided injection of hAM matrix into rat MI hearts significantly improves cardiac contractility, as measured by ejection fraction (EF), and decrease fibrosis. The results of this study demonstrate the feasibility of engineering as an injectable hAM matrix and its efficacy in attenuating degenerative changes in cardiac function following MI, which may have broad applications in tissue regeneration.
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Affiliation(s)
- Jeffrey J D Henry
- Department of Bioengineering, University of California, Berkeley, CA, 94720, USA
| | - Lawrence Delrosario
- Department of Medicine, Cardiovascular Research Institute and Institute for Regeneration Medicine, University of California, San Francisco, CA, 94143, USA
| | - Jun Fang
- Department of Bioengineering and Medicine, University of California, Los Angeles, CA, 90095, USA
| | - Sze Yue Wong
- Department of Bioengineering, University of California, Berkeley, CA, 94720, USA
| | - Qizhi Fang
- Department of Medicine, Cardiovascular Research Institute and Institute for Regeneration Medicine, University of California, San Francisco, CA, 94143, USA
| | - Richard Sievers
- Department of Medicine, Cardiovascular Research Institute and Institute for Regeneration Medicine, University of California, San Francisco, CA, 94143, USA
| | - Surya Kotha
- Department of Bioengineering, University of California, Berkeley, CA, 94720, USA
| | - Aijun Wang
- Department of Surgery, University of California, Davis, CA, 95817, USA
| | - Diana Farmer
- Department of Surgery, University of California, Davis, CA, 95817, USA
| | - Praneeth Janaswamy
- Department of Medicine, Cardiovascular Research Institute and Institute for Regeneration Medicine, University of California, San Francisco, CA, 94143, USA
| | - Randall J Lee
- Department of Medicine, Cardiovascular Research Institute and Institute for Regeneration Medicine, University of California, San Francisco, CA, 94143, USA
| | - Song Li
- Department of Bioengineering, University of California, Berkeley, CA, 94720, USA
- Department of Bioengineering and Medicine, University of California, Los Angeles, CA, 90095, USA
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14
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Skin Integrity and Infection Prevention Las Vegas: don't bust on biofilm, bet on dHACM. J Wound Care 2018; 27:764-6. [PMID: 30398940 DOI: 10.12968/jowc.2018.27.11.764] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
The 4th International Skin Integrity and Infection Prevention conference, hosted by the Journal of Wound Care and the University of Huddersfield, was held earlier this year in Las Vegas. A key theme was the impact of biofilm on wound healing. In the second of our sponsored symposia reports, the manner in which delayed healing can be reversed through effective biofilm management, and the introduction of regulatory proteins found in dehydrated human amnion chorion membrane allograft were explained.
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15
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Fard M, Akhavan-Tavakoli M, Khanjani S, Zare S, Edalatkhah H, Arasteh S, Mehrabani D, Zarnani AH, Kazemnejad S, Shirazi R. Bilayer Amniotic Membrane/Nano-fibrous Fibroin Scaffold Promotes Differentiation Capability of Menstrual Blood Stem Cells into Keratinocyte-Like Cells. Mol Biotechnol 2018; 60:100-110. [PMID: 29247317 DOI: 10.1007/s12033-017-0049-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The skin provides a dynamic barrier separating and protecting human body from the exterior world, and then immediate repair and rebuilding of the epidermal barrier is crucial after wound and injury. Wound healing without scars and complete regeneration of skin tissue still remain as a clinical challenge. The demand to engineer scaffolds that actively promote regeneration of damaged areas of the skin has been increased. In this study, menstrual blood-derived stem cells (MenSCs) have been induced to differentiate into keratinocytes-like cells in the presence of human foreskin-derived keratinocytes on a bilayer scaffold based on amniotic membrane and silk fibroin. Based on the findings, newly differentiated keratinocytes from MenSCs successfully expressed the keratinocytes specific markers at both mRNA and protein levels judged by real-time PCR and immunostaining techniques, respectively. We could show that the differentiated cells over bilayer composite scaffolds express the keratinocytes specific markers at higher levels when compared with those cultured in conventional 2D culture system. Based on these findings, bilayer amniotic membrane/nano-fibrous fibroin scaffold represents an efficient natural construct with broad applicability to generate keratinocytes from MenSCs for stem cell-based skin wounds healing and regeneration.
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Affiliation(s)
- Maryam Fard
- Department of Anatomical Sciences, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Maryam Akhavan-Tavakoli
- Department of Anatomical Sciences, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran
| | - Sayeh Khanjani
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 1177-19615, Tehran, Iran
| | - Sona Zare
- Skin and Stem Cell Research Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Haleh Edalatkhah
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 1177-19615, Tehran, Iran
| | - Shaghayegh Arasteh
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 1177-19615, Tehran, Iran
| | - Davood Mehrabani
- Stem Cell and Transgenic Technology Research Center, Shiraz University of Medical Science, Shiraz, Iran
| | - Amir-Hassan Zarnani
- Reproductive Immunology Research Center, Avicenna Research Institute, ACECR, Tehran, Iran
- Immunology Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Somaieh Kazemnejad
- Reproductive Biotechnology Research Center, Avicenna Research Institute, ACECR, P.O. Box: 1177-19615, Tehran, Iran.
| | - Reza Shirazi
- Department of Anatomical Sciences, School of Medicine, Qazvin University of Medical Sciences, Qazvin, Iran.
- Department of Anatomical Sciences, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
- Cellular and Molecular Research Center, Iran University of Medical Sciences, P.O. Box: 1449614525, Tehran, Iran.
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16
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Fénelon M, Chassande O, Kalisky J, Gindraux F, Brun S, Bareille R, Ivanovic Z, Fricain JC, Boiziau C. Human amniotic membrane for guided bone regeneration of calvarial defects in mice. J Mater Sci Mater Med 2018; 29:78. [PMID: 29858670 DOI: 10.1007/s10856-018-6086-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/22/2017] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
Due to its biological properties, human amniotic membrane (hAM) is widely studied in the field of tissue engineering and regenerative medicine. hAM is already very attractive for wound healing and it may be helpful as a support for bone regeneration. However, few studies assessed its potential for guided bone regeneration (GBR). The purpose of the present study was to assess the potential of the hAM as a membrane for GBR. In vitro, cell viability in fresh and cryopreserved hAM was assessed. In vivo, we evaluated the impact of fresh versus cryopreserved hAM, using both the epithelial or the mesenchymal layer facing the defect, on bone regeneration in a critical calvarial bone defect in mice. Then, the efficacy of cryopreserved hAM associated with a bone substitute was compared to a collagen membrane currently used for GBR. In vitro, no statistical difference was observed between the conditions concerning cell viability. Without graft material, cryopreserved hAM induced more bone formation when the mesenchymal layer covered the defect compared to the defect left empty. When associated with a bone substitute, such improved bone repair was not observed. These preliminary results suggest that cryopreserved hAM has a limited potential for GBR.
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Affiliation(s)
- Mathilde Fénelon
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France.
- CHU Bordeaux, Odontology and Oral Health Department, F-33076, Bordeaux, France.
| | - Olivier Chassande
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France
| | - Jérome Kalisky
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France
| | - Florelle Gindraux
- Orthopedic, Traumatologic & Plastic Surgery Service - University Hospital of Besançon, Besançon, France
| | - Stéphanie Brun
- University hospital, Gynecology-Obstetrics Service, F-33076, Bordeaux, France
| | - Reine Bareille
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France
| | - Zoran Ivanovic
- French Blood Establishment (EFS), Aquitaine-Limousin Branch, Bordeaux, France
| | - Jean-Christophe Fricain
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France
- CHU Bordeaux, Odontology and Oral Health Department, F-33076, Bordeaux, France
| | - Claudine Boiziau
- Univ. Bordeaux, INSERM, Laboratory BioTis, UMR 1026, F-33076, Bordeaux, France
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17
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Williams R, Lace R, Kennedy S, Doherty K, Levis H. Biomaterials for Regenerative Medicine Approaches for the Anterior Segment of the Eye. Adv Healthc Mater 2018; 7:e1701328. [PMID: 29388397 DOI: 10.1002/adhm.201701328] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2017] [Revised: 12/22/2017] [Indexed: 12/13/2022]
Abstract
The role of biomaterials in tissue engineering and regenerative medicine strategies to treat vision loss associated with damage to tissues in the anterior segment of the eye has been studied for several years. This has mostly involved replacement and support for the cornea and conjunctiva. These are complex tissues with specific functional requirements for different parts of the tissue. Amniotic membrane (AM) is used in clinical practice to transplant autologous or allogenic cells to the corneal surface. Fibrin gels have also progressed to clinical use under specific conditions. Alternatives to AM such as collagen gels, other natural materials, for example keratin and silks, and synthetic polymers have received considerable attention in laboratory and animal studies. This experience is building a body of evidence to demonstrate the potential of tissue engineering and regenerative medicine in corneal and conjunctival reconstruction and can also lead to other applications in the anterior segment of the eye, for example, the trabecular meshwork. There is a real clinical need for new procedures to overcome vision loss but there are also opportunities for developments in ocular applications to lead to biomaterials innovations for use in other clinical areas.
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Affiliation(s)
- Rachel Williams
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Rebecca Lace
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Stephnie Kennedy
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Kyle Doherty
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
| | - Hannah Levis
- Department of Eye and Vision Science, University of Liverpool, William Henry Duncan Building, 6 West Derby Street, Liverpool, L7 8TX, UK
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18
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Becker M, Maring JA, Schneider M, Herrera Martin AX, Seifert M, Klein O, Braun T, Falk V, Stamm C. Towards a Novel Patch Material for Cardiac Applications: Tissue-Specific Extracellular Matrix Introduces Essential Key Features to Decellularized Amniotic Membrane. Int J Mol Sci 2018; 19:E1032. [PMID: 29596384 PMCID: PMC5979550 DOI: 10.3390/ijms19041032] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 03/26/2018] [Accepted: 03/27/2018] [Indexed: 12/18/2022] Open
Abstract
There is a growing need for scaffold material with tissue-specific bioactivity for use in regenerative medicine, tissue engineering, and for surgical repair of structural defects. We developed a novel composite biomaterial by processing human cardiac extracellular matrix (ECM) into a hydrogel and combining it with cell-free amniotic membrane via a dry-coating procedure. Cardiac biocompatibility and immunogenicity were tested in vitro using human cardiac fibroblasts, epicardial progenitor cells, murine HL-1 cells, and human immune cells derived from buffy coat. Processing of the ECM preserved important matrix proteins as demonstrated by mass spectrometry. ECM coating did not alter the mechanical characteristics of decellularized amniotic membrane but did cause a clear increase in adhesion capacity, cell proliferation and viability. Activated monocytes secreted less pro-inflammatory cytokines, and both macrophage polarization towards the pro-inflammatory M1 type and T cell proliferation were prevented. We conclude that the incorporation of human cardiac ECM hydrogel shifts and enhances the bioactivity of decellularized amniotic membrane, facilitating its use in future cardiac applications.
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Affiliation(s)
- Matthias Becker
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
| | - Janita A Maring
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
| | - Maria Schneider
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
| | - Aarón X Herrera Martin
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Julius Wolff Institute for Biomechanics and Musculoskeletal Regeneration, 13353 Berlin, Germany.
| | - Martina Seifert
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
| | - Oliver Klein
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
| | - Thorsten Braun
- Department of Obstetrics and Gynecology, Charite Medical University, 13353 Berlin, Germany.
| | - Volkmar Falk
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, 13316 Berlin, Germany.
- Deutsches Herzzentrum Berlin (DHZB), Augustenburger Platz 1, 13353 Berlin, Germany.
| | - Christof Stamm
- Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 13353 Berlin, Germany.
- Berlin-Brandenburg Center for Regenerative Therapies (BCRT), 13353 Berlin, Germany.
- German Centre for Cardiovascular Research (DZHK), Partner Site Berlin, 13316 Berlin, Germany.
- Deutsches Herzzentrum Berlin (DHZB), Augustenburger Platz 1, 13353 Berlin, Germany.
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Ryzhuk V, Zeng XX, Wang X, Melnychuk V, Lankford L, Farmer D, Wang A. Human amnion extracellular matrix derived bioactive hydrogel for cell delivery and tissue engineering. Mater Sci Eng C Mater Biol Appl 2017; 85:191-202. [PMID: 29407148 DOI: 10.1016/j.msec.2017.12.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Revised: 10/29/2017] [Accepted: 12/19/2017] [Indexed: 12/21/2022]
Affiliation(s)
- Volodymyr Ryzhuk
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA
| | - Xu-Xin Zeng
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA; Pharmaceutical Laboratory, School of Medicine, Foshan University, No. 5 Hebin Rd., Foshan, Guangdong, PR China
| | - Xijun Wang
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA; School of Stomatology, Shandong University, 44 Wenhua Xi Road, Jinan, Shandong, PR China
| | - Veniamin Melnychuk
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA
| | - Lee Lankford
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA
| | - Diana Farmer
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA
| | - Aijun Wang
- Surgical Bioengineering Laboratory, Department of Surgery, University of California Davis Health System, Research II, 4625 2nd Avenue, Sacramento, CA 95817, USA.
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20
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Bernabé-García Á, Liarte S, Moraleda JM, Castellanos G, Nicolás FJ. Amniotic membrane promotes focal adhesion remodeling to stimulate cell migration. Sci Rep 2017; 7:15262. [PMID: 29127427 PMCID: PMC5681678 DOI: 10.1038/s41598-017-15509-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2017] [Accepted: 10/26/2017] [Indexed: 02/04/2023] Open
Abstract
During wound healing, the migration of keratinocytes onto newly restored extracellular matrix aims to reestablish continuity of the epidermis. The application of amniotic membrane (AM) to chronic, deep traumatic, non-healing wounds has proven successful at stimulating re-epithelialization. When applied on epithelial cell cultures, AM activates extracellular signal-regulated kinases 1/2 (ERK1/2) and c-Jun N-terminal kinases 1/2 (JNK1/2), with the overexpression and phosphorylation of c-Jun along the wound edge. The effect of AM on the migration of cells was investigated by studying critical proteins involved in the focal adhesions turn-over: Focal Adhesion Kinase (FAK), Paxillin and Vinculin. In Mv1Lu and HaCaT cells, validated models for cell migration and wound healing, AM affected the expression and activation of Paxillin, but did not affect Vinculin expression, both factors which integrate into focal adhesions. Moreover, AM regulation also affected FAK activity through phosphorylation. Finally, we have determined that AM regulation of focal adhesions involves both JNK and MEK MAP kinase signaling pathways. This data provides a molecular background to understand how AM regulates critical cell and molecular aspects of cell migration, organizing and directing the movement of cells by the continuous formation, maturation, and turnover of focal adhesion structures at the migration leading edge.
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Affiliation(s)
- Ángel Bernabé-García
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain
| | - Sergio Liarte
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain
| | - Jose M Moraleda
- Unidad de Trasplante y Terapia Celular, Servicio Hematología, Hospital Clínico Universitario Virgen de la Arrixaca, Universidad de Murcia, Murcia, Spain
| | - Gregorio Castellanos
- Servicio de Cirugía General y del Aparato Digestivo, Hospital Clínico Universitario Virgen de la Arrixaca, El Palmar, Murcia, Spain
| | - Francisco J Nicolás
- Laboratorio de Oncología Molecular y TGF-ß, IMIB-Arrixaca, El Palmar, Murcia, Spain.
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21
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Mowry KC, Bonvallet PP, Bellis SL. Enhanced Skin Regeneration Using a Novel Amniotic-derived Tissue Graft. Wounds 2017; 29:277-285. [PMID: 28933697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
BACKGROUND Chronic and recalcitrant wounds present a significant therapeutic challenge. Amniotic tissues contain many regenerative cytokines, growth factors, and extracellular matrix molecules including proteoglycans, hyaluronic acid, and collagens I, III, and IV. Dehydrated amnion/chorion grafts are currently used to treat a variety of wounds such as diabetic foot ulcers and burns. OBJECTIVE The investigators hypothesized that processing methodologies, dehydration, and hypothermic processing and storage of amniotic tissues would affect overall quality of wound healing; they compared dehydrated amnion/chorion (dHACM) grafts to a novel hypothermically stored amniotic membrane (HSAM) graft in a full-thickness rat wound model. MATERIALS AND METHODS Sprague-Dawley rats were anesthetized and prepped for surgery; four 1.5-cm diameter full-thickness wounds were created and treated with either: (1) dHACM, (2) dHACM meshed, (3) HSAM, or (4) wound left ungrafted (sham). After 9 or 21 days, wounds and surrounding areas were collected and stained with hematoxylin and eosin. Blinded quantitative analysis of quality of wound healing was completed by evaluating hair follicle/gland formation, dense/scar-like matrix, and basket-weave matrix. RESULTS At varying time points following placement of the grafts into full-thickness defects, the authors found that all amniotic-derived tissue grafts appeared to stimulate improved healing over sham wounds, evidenced by more normal-appearing dermal matrix architecture, epidermal structure, and maturity. In addition, the HSAM grafts promoted greater tissue regeneration than the dHACM meshed grafts, as measured by the presence of basket-weave collagen matrix and formation of follicles and glands. CONCLUSIONS In sum, this study builds on the amassing literature supporting amniotic tissues for wound repair and demonstrates the importance of tissue processing on the quality of wound healing.
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Go YY, Kim SE, Cho GJ, Chae SW, Song JJ. Differential effects of amnion and chorion membrane extracts on osteoblast-like cells due to the different growth factor composition of the extracts. PLoS One 2017; 12:e0182716. [PMID: 28797129 PMCID: PMC5552222 DOI: 10.1371/journal.pone.0182716] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 07/24/2017] [Indexed: 12/22/2022] Open
Abstract
Human amniotic membrane extracts contain numerous growth factors and bioactive substances. However, osteogenic effects of amnion and chorion membrane extracts (AME and CME, respectively) on osteoblasts are unclear. In this study, we explored the ability of AME and CME to promote the osteogenic differentiation of osteoblast-like MG-63 cells. MG-63 cells were cultured in osteogenic induction medium (OIM) with or without exogenous AME and CME. CME enhanced the osteogenic differentiation of MG-63 cells compared with AME, as indicated by increased mineralization; alkaline phosphatase activity; and mRNA expression of osteogenic marker genes encoding integrin-binding sialoprotein (IBSP), RUNX2, OSTERIX, and osteocalcin (OCN). Interestingly, AME and CME contained different combinations of osteogenesis-related growth factors, including basic fibroblast growth factor (bFGF), transforming growth factor beta-1 (TGFβ-1), and epidermal growth factor (EGF), which differentially regulated the osteogenic differentiation of MG-63 cells. bFGF and TGFβ-1 present in CME positively regulated the osteogenic differentiation of MG-63 cells, whereas EGF present in AME negatively regulated the differentiation of MG-63 cells. Moreover, exogenous treatment of EGF antagonized CME-induced mineralization of extracellular matrix on MG-63 cells. We compared the osteogenic efficacy of CME with that of BMP2, bFGF, and TGFβ-1 alone or their combinations. We observed that CME greatly enhanced osteogenesis by providing a conductive environment for the differentiation of MG-63 cells. Together, our results indicated that human AME and CME exerted differential effects on osteogenesis because of the presence of different compositions of growth factors. In addition, our results highlighted a new possible strategy of using CME as a biocompatible therapeutic material for bone regeneration.
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Affiliation(s)
- Yoon Young Go
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Sung Eun Kim
- Department of Orthopedic Surgery and Rare Diseases Institute, Korea University College of Medicine, Seoul, Korea
| | - Geum Joon Cho
- Department of Obstetrics and Gynecology, Korea University College of Medicine, Seoul, Korea
| | - Sung-Won Chae
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
| | - Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul, Korea
- * E-mail:
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23
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Alves AC, Monteiro MS, Machado AL, Oliveira M, Bóia A, Correia A, Oliveira N, Soares AMVM, Loureiro S. Mercury levels in parturient and newborns from Aveiro region, Portugal. J Toxicol Environ Health A 2017; 80:697-709. [PMID: 28524771 DOI: 10.1080/15287394.2017.1286926] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Since the outbreak of methylmercury (MeHg) poisoning in Japan and Iraq, mercury (Hg) is classified as well-established teratogen. The Portuguese region of Aveiro faced some decades ago an environmental Hg contamination due to activities from a chlor-alkali plant. Until now, no apparent evaluation was conducted regarding prenatal exposure to Hg in this area. The main objectives of this study were to: i) assess maternal and fetal exposure to Hg in the Aveiro region using noninvasive biological matrices; ii) examine the influence of variables that may contribute to Hg exposure during pregnancy; and iii) improve knowledge regarding metal accumulation and distribution over the maternal-fetal-placental unit. This study was performed in 50 mother-newborn pairs from the Aveiro district. Total Hg (THg) was quantified in maternal scalp hair, placenta, amniotic membrane, and umbilical cord. Maternal hair presented THg levels with a mean value of 900 ng/g, which is lower than the USEPA and WHO acceptable threshold. Regarding THg levels in placenta and umbilical cord, mean values were similar (decidua basalis: 32.84 ng/g; chorionic plate: 30.18 ng/g; umbilical cord: 30.67 ng/g). The amniotic membrane presented the highest THg levels with a mean concentration of 42.35 ng/g, reaching a maximum of 134.1 ng/g. Further, a significant positive correlation was noted between THg levels found in hair, and all matrices analyzed reinforcing the use of hair in biomonitoring studies with respect to maternal exposure to Hg. In general, levels of THg found in our study were lower than those in previous studies performed in Europe. Consumption of fish rich in selenium and bottled water was negatively correlated with THg levels. Finally, data demonstrated that Hg is capable of crossing the placental barrier and accumulate in placental tissues. Amniotic membrane seemed to play a role in metal detoxification, but further investigations are necessary to examine whether this catabolic process affects Hg accumulation.
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Affiliation(s)
- Ana Catarina Alves
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Marta S Monteiro
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Ana Luísa Machado
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Mário Oliveira
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Ana Bóia
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Ana Correia
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Nuno Oliveira
- b Obstetrics and Gynecology Department, Infante D.Pedro Hospital , Centro Hospitalar Baixo , Vouga , EPE, Aveiro , Portugal
| | - Amadeu M V M Soares
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
| | - Susana Loureiro
- a Department of Biology & Centro de Estudos do Ambiente e do MAR (CESAM) , University of Aveiro , Aveiro , Portugal
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Guo X, Kaplunovsky A, Zaka R, Wang C, Rana H, Turner J, Ye Q, Djuretic I, Gleason J, Jankovic V, Smiell JM, Bhatia M, Hofgartner W, Hariri R. Modulation of Cell Attachment, Proliferation, and Angiogenesis by Decellularized, Dehydrated Human Amniotic Membrane in In Vitro Models. Wounds 2017; 29:28-38. [PMID: 27852013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
BACKGROUND Decellularized, dehydrated human amniotic membrane (DDHAM) is an extracellular matrix devoid of cells, cell debris, and growth factors. This study examines the effect of cell attachment to the DDHAM and the induced cellular responses. MATERIALS AND METHODS The cell types employed in this study were human dermal fibroblasts (HDF), human epithelial keratinocytes (HEK), and human dermal microvascular endothelial cells (HDMEC), all of which play critical roles in the wound healing process. Further, the DDHAM was compared to a dehydrated human amnion/chorion membrane (dHACM), which contains and releases biological entities including growth factors and cytokines. The HDF and HEK were cultured on the DDHAM and the dHACM, and cell imaging and proliferation assays were performed to evaluate cell attachment to and the ability to proliferate on the DDHAM relative to the dHACM. In addition, the effect of soluble factors released by the DDHAM and the dHACM on cell survival, attachment, and proliferation were examined. The authors also evaluated the effect of soluble factors produced by culturing cells on the DDHAM in in vitro functional assays, including cell survival and endothelial cell migration in a wound closure angiogenesis assay. RESULTS The HDF and HEK cells readily attached to and proliferated on the DDHAM, while the dHACM did not support cell attachment and proliferation when cultured under the same conditions. Soluble factors secreted when HDF were cultured on the DDHAM enhanced both endothelial cell and keratinocyte survival and endothelial cell migration in a wound closure assay. CONCLUSIONS Although DDHAM is only an extracellular matrix and serves primarily as a scaffold, it has sufficient cues to allow for cell attachment and proliferation. Further, the biological entities released as a consequence of cell attachment promote cell survival and migration.
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Affiliation(s)
- Xuan Guo
- Celgene Cellular Therapeutics, Warren, NJ
| | | | | | - Chuan Wang
- Celgene Cellular Therapeutics, Warren, NJ
| | | | | | - Qian Ye
- Celgene Cellular Therapeutics, Warren, NJ
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Khalil S, El-Badri N, El-Mokhtaar M, Al-Mofty S, Farghaly M, Ayman R, Habib D, Mousa N. A Cost-Effective Method to Assemble Biomimetic 3D Cell Culture Platforms. PLoS One 2016; 11:e0167116. [PMID: 27935982 PMCID: PMC5147837 DOI: 10.1371/journal.pone.0167116] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2016] [Accepted: 11/09/2016] [Indexed: 02/06/2023] Open
Abstract
METHODS We utilized the hAM to provide the biological and the three dimensional (3D) topographic components of the prototype. The 3D nano-roughness of the hAM was characterized using surface electron microscopy and surface image analysis (ImageJ and SurfaceJ). We developed additional macro-scale and micro-scale versions of the platform which provided additional shear stress factors to simulate the fluid dynamics of the in vivo extracellular fluids. RESULTS Three models of varying complexities of the prototype were assembled. A well-defined 3D surface modulation of the hAM in comparable to commercial 3D biomaterial culture substrates was achieved without complex fabrication and with significantly lower cost. Performance of the prototype was demonstrated through culture of primary human umbilical cord mononuclear blood cells (MNCs), human bone marrow mesenchymal stem cell line (hBMSC), and human breast cancer tissue. CONCLUSION This study presents methods of assembling an integrated, flexible and low cost biomimetic cell culture platform for diverse cell culture applications.
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Affiliation(s)
- Sabreen Khalil
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, Egypt
| | - Nagwa El-Badri
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
- * E-mail: (NM); (NE)
| | - Mohamed El-Mokhtaar
- Department of Microbiology and Immunology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Saif Al-Mofty
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, Egypt
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
| | - Mohamed Farghaly
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, Egypt
| | - Radwa Ayman
- Center of Excellence for Stem Cells and Regenerative Medicine, Zewail City of Science and Technology, Giza, Egypt
| | - Dina Habib
- Department of Obstetrics and Gynecology, Faculty of Medicine, Assiut University, Assiut, Egypt
| | - Noha Mousa
- University of Science and Technology, Zewail City of Science and Technology, Giza, Egypt
- * E-mail: (NM); (NE)
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Sanluis-Verdes A, Sanluis-Verdes N, Manso-Revilla MJ, Castro-Castro AM, Pombo-Otero J, Fraga-Mariño M, Sanchez-Ibañez J, Doménech N, Rendal-Vázquez ME. Tissue engineering for neurodegenerative diseases using human amniotic membrane and umbilical cord. Cell Tissue Bank 2016; 18:1-15. [PMID: 27830445 DOI: 10.1007/s10561-016-9595-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Accepted: 10/24/2016] [Indexed: 12/27/2022]
Abstract
Regenerative medicine, based on the use of stem cells, scaffolds and growth factors, has the potential to be a good approach for restoring damaged tissues of the central nervous system. This study investigated the use of human amniotic mesenchymal stem cells (hAMSC), human amniotic epithelial stem cells (hAESC), and human Wharton's jelly mesenchymal stem cells (hWJMSC) derived from human umbilical cord as a source of stem cells, and the potential of the human amniotic membrane (HAM) as a scaffold and/or source of growth factors to promote nerve regeneration. The hAMSC and hAESC obtained from HAM and the hWJMSC from umbilical cords were cultured in induction medium to obtain neural-like cells. The morphological differentiation of hAMSC, hAESC and hWJMSC into neural-like cells was evident after 4-5 days, when they acquired an elongated and multipolar shape, and at 21 days, when they expressed neural and glial markers. On other way, the HAM was completely decellularized without affecting the components of the basement membrane or the matrix. Subsequently, hAMSC, hAESC and hWJMSC differentiated into neural-like cells were seeded onto the decellularized HAM, maintaining their morphology. Finally, conditioned media from the HAM allowed proliferation of hAMSC, hAESC and hWJMSC differentiated to neural-like cells. Both HAM and umbilical cord are biomaterials with great potential for use in regenerative medicine for the treatment of neurodegenerative diseases.
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Affiliation(s)
- Anahí Sanluis-Verdes
- Unidad de Criobiología-Banco de Tejidos, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
| | - Namibia Sanluis-Verdes
- Unidad de Criobiología-Banco de Tejidos, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
- Servicio de Cirugía General y del Aparato Digestivo, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
| | - María Jesús Manso-Revilla
- Grupo NEUROVER, Departamento de Biología Celular y Molecular, Facultad de Ciencias, Universidad de A Coruña (UDC), Campus de A Coruña, 15071, A Coruña, Spain
| | - Antonio Manuel Castro-Castro
- Grupo NEUROVER, Departamento de Biología Celular y Molecular, Facultad de Ciencias, Universidad de A Coruña (UDC), Campus de A Coruña, 15071, A Coruña, Spain
| | - Jorge Pombo-Otero
- Servicio de Anatomía Patológica, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
| | - María Fraga-Mariño
- Biobanco A Coruña, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
| | - Jacinto Sanchez-Ibañez
- Unidad de Criobiología-Banco de Tejidos, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain
| | - Nieves Doménech
- Biobanco A Coruña, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain.
| | - María Esther Rendal-Vázquez
- Unidad de Criobiología-Banco de Tejidos, Complexo Hospitalario Universitario de A Coruña (CHUAC)-Instituto de Investigaciones Biomédicas A Coruña (INIBIC), As Xubias, s/n, 15006, A Coruña, Spain.
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Tseng SCG. HC-HA/PTX3 Purified From Amniotic Membrane as Novel Regenerative Matrix: Insight Into Relationship Between Inflammation and Regeneration. Invest Ophthalmol Vis Sci 2016; 57:ORSFh1-8. [PMID: 27116665 PMCID: PMC4855828 DOI: 10.1167/iovs.15-17637] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2015] [Accepted: 08/03/2015] [Indexed: 12/22/2022] Open
Abstract
PURPOSE Human limbal palisade of Vogt is an ideal model for studying and practicing regenerative medicine due to their accessibility. Nonresolving inflammation is a common manifestation of limbal stem cell deficiency, which is the major cause of corneal blindness, and presents as a threat to the success of transplanted limbal epithelial stem cells. Clinical studies have shown that the efficacy of transplantation of limbal epithelial stem cells can be augmented by transplantation of cryopreserved human amniotic membrane (AM), which exerts anti-inflammatory, antiscarring, and antiangiogenic action to promote wound healing. METHODS Review of published data to determine the molecular action mechanism explaining how AM exerts the aforementioned therapeutic actions. RESULTS From the water-soluble extract of cryopreserved AM, we have biochemically purified one novel matrix component termed heavy chain (HC)-hyaluronan (HA)/pentraxin 3 (PTX3) as the key relevant tissue characteristic responsible for the aforementioned AM's efficacy. Heavy chain-HA is a complex formed by a covalent linkage between HA and HC1 of inter-α-trypsin inhibitor (IαI) by tumor necrosis factor-stimulated gene-6 (TSG-6). This complex may then be tightly associated with PTX3 to form HC-HA/PTX3 complex. Besides exerting an anti-inflammatory, antiscarring, and antiangiogenic effects, HC-HA/PTX3 complex also uniquely maintains limbal niche cells to support the quiescence of limbal epithelial stem cells. CONCLUSIONS We envision that HC-HA/PTX3 purified from AM can be used as a unique substrate to refine ex vivo expansion of limbal epithelial stem cells by maintaining stem cell quiescence, self-renewal and fate decision. Furthermore, it can also be deployed as a platform to launch new therapeutics in regenerative medicine by mitigating nonresolving inflammation and reinforcing the well-being of stem cell niche.
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Affiliation(s)
- Scheffer C. G. Tseng
- The R&D Department of TissueTech Inc., Ocular Surface Center, and Ocular Surface Research and Education Foundation, Miami, Florida, United States
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Kiany F, Moloudi F. Amnion membrane as a novel barrier in the treatment of intrabony defects: a controlled clinical trial. Int J Oral Maxillofac Implants 2016; 30:639-47. [PMID: 26009915 DOI: 10.11607/jomi.3590] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
PURPOSE The purpose of this 6-month randomized, controlled, blinded, clinical trial was to evaluate and compare the efficacy of amnion membrane (AM) with deproteinized bovine bone mineral (BBM) and a collagen membrane (CM) with BBM in guided tissue regeneration (GTR) for the treatment of intrabony periodontal defects. MATERIALS AND METHODS Ten chronic periodontitis patients with bilateral intrabony defects with radiographic evidence of intrabony component ≥ 4 mm and probing pocket depths (PPDs) ≥ 6 mm were treated with AM+BBM, and the control group was managed with CM+BBM. Periodontal clinical parameters were recorded at baseline and at 6 months after treatment. RESULTS PPD, clinical attachment level (CAL), and probing bone (PB) showed significant improvements after 6 months in both the test and control groups. Gingival recession showed a significant increase in the control group but not in the test group. The changes in mean PPD, PB, and CAL preoperatively and postoperatively between the groups were not significant. There was no significant relationship between the depth of the baseline bony defect and CAL gain. CONCLUSION Both AM and CM in conjunction with BBM provided improvement of clinical periodontal parameters. AM did not induce significant gingival recession and is suggested as a new barrier membrane in GTR treatment.
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Gonzalez-Andrades M, Cardona JDLC, Ionescu AM, Mosse CA, Brown RA. Photographic-Based Optical Evaluation of Tissues and Biomaterials Used for Corneal Surface Repair: A New Easy-Applied Method. PLoS One 2015; 10:e0142099. [PMID: 26566050 PMCID: PMC4643926 DOI: 10.1371/journal.pone.0142099] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2015] [Accepted: 10/16/2015] [Indexed: 11/19/2022] Open
Abstract
PURPOSE Tissues and biomaterials used for corneal surface repair require fulfilling specific optical standards prior to implantation in the patient. However, there is not a feasible evaluation method to be applied in clinical or Good Manufacturing Practice settings. In this study, we describe and assess an innovative easy-applied photographic-based method (PBM) for measuring functional optical blurring and transparency in corneal surface grafts. METHODS Plastic compressed collagen scaffolds (PCCS) and multilayered amniotic membranes (AM) samples were optically and histologically evaluated. Transparency and image blurring measures were obtained by PBM, analyzing photographic images of a standardized band pattern taken through the samples. These measures were compared and correlated to those obtained applying the Inverse Adding-Doubling (IAD) technique, which is the gold standard method. RESULTS All the samples used for optical evaluation by PBM or IAD were histological suitable. PCCS samples presented transmittance values higher than 60%, values that increased with increasing wavelength as determined by IAD. The PBM indicated that PCCS had a transparency ratio (TR) value of 80.3 ± 2.8%, with a blurring index (BI) of 50.6 ± 4.2%. TR and BI obtained from the PBM showed a high correlation (ρ>|0.6|) with the diffuse transmittance and the diffuse reflectance, both determined using the IAD (p<0.005). The AM optical properties showed that there was a largely linear relationship between the blurring and the number of amnion layers, with more layers producing greater blurring. CONCLUSIONS This innovative proposed method represents an easy-applied technique for evaluating transparency and blurriness of tissues and biomaterials used for corneal surface repair.
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Affiliation(s)
- Miguel Gonzalez-Andrades
- Tissue Repair & Engineering Centre, University College of London, London, United Kingdom
- Tissue Engineering Group, Department of Histology, University of Granada, Granada, Spain
- Ophthalmology Department, San Cecilio University Hospital, Granada, Spain
- * E-mail:
| | - Juan de la Cruz Cardona
- Laboratory of Biomaterials and Optics—Optics Department, University of Granada, Granada, Spain
| | - Ana Maria Ionescu
- Laboratory of Biomaterials and Optics—Optics Department, University of Granada, Granada, Spain
| | - Charles A. Mosse
- Optics Department, University College of London, London, United Kingdom
| | - Robert A. Brown
- Tissue Repair & Engineering Centre, University College of London, London, United Kingdom
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Cooke M, Tan EK, Mandrycky C, He H, O'Connell J, Tseng SCG. Comparison of cryopreserved amniotic membrane and umbilical cord tissue with dehydrated amniotic membrane/chorion tissue. J Wound Care 2014; 23:465-74, 476. [PMID: 25296347 DOI: 10.12968/jowc.2014.23.10.465] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
OBJECTIVE To evaluate how the different processing methods cryopreservation and dehydration affect the structural integrity and biological composition of key signalling molecules within amniotic membrane and umbilical cord tissues. METHOD We directly compared cryopreserved amniotic membrane (AM) and umbilical cord (UC) tissues with dehydrated amniotic membrane/chorion (dHACM) tissue using biochemical and functional assays including histological and histochemical staining, BCA, agarose gel electrophoresis, western blot, ELISA, and proliferation and cell death assays. RESULTS Cryopreservation retains the native architecture of the AM/UC extracellular matrix and maintains the quantity and activity of key biological signals present in fresh AM/UC, including high molecular weight hyaluronic acid, heavy chain-HA complex, and pentraxin 3. In contrast, dehydrated tissues were structurally compromised and almost completely lacked these crucial components. CONCLUSION The results presented here indicate that cryopreservation better preserves the structural and biological signaling molecules of foetal tissues.
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Affiliation(s)
- M Cooke
- Amniox Medical, Atlanta, GA, 30339, USA
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Koob TJ, Lim JJ, Zabek N, Massee M. Cytokines in single layer amnion allografts compared to multilayer amnion/chorion allografts for wound healing. J Biomed Mater Res B Appl Biomater 2014; 103:1133-40. [PMID: 25176107 DOI: 10.1002/jbm.b.33265] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 06/17/2014] [Accepted: 08/08/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Thomas J Koob
- MiMedx Group, Inc., 1775 West Oak Commons Court NE, Marietta, Georgia
| | - Jeremy J Lim
- MiMedx Group, Inc., 1775 West Oak Commons Court NE, Marietta, Georgia
| | - Nicole Zabek
- MiMedx Group, Inc., 1775 West Oak Commons Court NE, Marietta, Georgia
| | - Michelle Massee
- MiMedx Group, Inc., 1775 West Oak Commons Court NE, Marietta, Georgia
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Oh JE, Krapfenbauer K, Fountoulakis M, Frischer T, Lubec G. Evidence for the existence of hypothetical proteins in human bronchial epithelial, fibroblast, amnion, lymphocyte, mesothelial and kidney cell lines. Amino Acids 2014; 26:9-18. [PMID: 14752611 DOI: 10.1007/s00726-003-0060-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2003] [Accepted: 11/20/2003] [Indexed: 11/27/2022]
Abstract
The human genome maybe limited to about 30000 genes whereas the human proteome may be represented by a rough estimate of one million proteins. A legion of proteins have been described and information about these structures are readily available in data banks. There remains, however, a large series of unknown or hypothetical proteins (HPs). Many of them have been predicted from nucleic acid sequences only and are therefore named predicted or HPs. Carrying out "protein hunting" by generating large maps of human cell lines, we aimed to find and identify HPs and provide an analytical tool thereof. Cell lysates from human bronchial epithelial, fibroblast, amnion, lymphocyte, mesothelial and kidney cell lines were prepared and proteins run on two-dimensional gel-electrophoresis (2DE) with in-gel digestion and mass spectrometrical analysis using the MALDI-TOF principle.16 HPs were found in these cell lines and some show cell-specific expressional patterns. HPs belong to several protein classes including structural, signaling, transcriptional/translational, chaperone-related and others. We furthermore provide analytical data i.e. pIs that were often different from predicted values in data banks.A list of HPs has been shown to really exist in several human cell lines thus contributing to knowledge on protein machineries and cascades. Observed and predicted pI values are given representing an analytical tool along with unambiguous identification of protein spots by mass spectrometry independent of antibody availability and specificity thus complementing established methods.
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Affiliation(s)
- J E Oh
- Department of Pediatrics, University of Vienna, Vienna, Austria
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Xiao Q, Chen Y, Du J, Wang H, Li W, Liu Z. [Effects of amniotic extraction on epithelial wound healing and stromal remodelling after excimer laser keratectomy in rabbit cornea]. Zhonghua Yan Ke Za Zhi 2014; 50:42-50. [PMID: 24709133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
OBJECTIVE To investigate the effects and mechanism of amniotic extraction on corneal healing after photorefractive keratectomy (PRK). METHODS Experimental Study. Thirty-six New Zealand rabbit corneas were performed with PRK models (-10 diopters, 6.5 mm diameter). According to random number table, all eyes were divided into three groups, including treated with amniotic extraction, 0.1% dexamethasone and excipient respectively after operation. Clinical and histopathologic examinations were taken by slit-lamp microscope and light microscope. Corneal epithelium reparation was observed by fluorescent staining. Corneal stroma cell apoptosis was evaluated by terminal deoxyribonucleotidyl transferase-mediated deoxyuridine triphosphate nick end labeling (TUNEL) assay. Myofibroblast generation was evaluated by immunofluorescence checking the expression of alpha-smooth muscle actin (α-SMA). The number of TUNEL and α-SMA positive cells was analyzed to explore the effects on corneal haze. The haze grading was compared between groups using Kruskal-Wallis H test. Mean values for each experiment were compared between groups using a one-way analysis of variance and LSD-t test.Spearman rank analysis was used to evaluate the correlation between the haze grading and the expression of TUNEL positive cells and α-SMA. RESULTS The corneas of seventy-two eyes reepithelialized in 6 days after operation. The average epithelium repair time of the AE group was (4.12 ± 0.62) d, the dexamethasone group was (5.25 ± 0.78) d, and the excipient group was (4.96 ± 0.73) d. The progression of reepithelialization was significantly faster in the AE group than the other two groups (F = 14.144, P < 0.01). The haze appeared in the first week after the PRK in all three groups, increased after 3-4 weeks, and relieved after 8 weeks. The degree of haze was significantly lower in the AE group than the other two groups in the first week (Vs. dexamethasone group, H = 3.995, P < 0.05; vs. excipient group, H = 12.77, P < 0.01), in the 4th week (Vs. dexamethasone group, H = 4.468, P < 0.05;vs. excipient group, H = 9.003, P < 0.01), and 8th week (Vs dexamethasone group, H = 4.397, P < 0.05;vs. excipient group, H = 5.744, P < 0.05) after PRK. The TUNEL-positive cells appeared in the central anterior stroma at the first week after surgery. And the number of TUNEL-positive cells in the AE group was (2.2500 ± 0.3750) cells/HP, the dexamethasone group was (4.5000 ± 0.7500) cells/HP, and the excipient group was (7.1250 ± 0.9063) cells/HP. The number of TUNEL-positive cells in AE group was less than those in the other two groups (Vs. dexamethasone group, t = 4.26, P < 0.01; vs. excipient group, t = 8.13, P < 0.01). The TUNEL-positive cells were only found in the excipient group (2.8750 ± 0.6563)/HP in 4th week after operation.It was significantly different between the dexamethasone group and the excipient group (t = 9.01, P < 0.01). There were no significant TUNEL-positive cells in 8th weeks in all three groups.α-SMA-positive cells started to appear apparently at the first week after surgery in the dexamethasone and excipient groups, and the peaks appeared at the 4th week after treatments, and there were still a lot of α-SMA-positive cells in corneal stroma at the 8th week after operation in both groups.On the contrary, there were no significant α-SMA-positive cells in the AE group all the time after surgery. The statistical significant difference can be found between the AE group vs. the dexamethasone and excipient groups in the first week (t = 28.62, 36.55;P < 0.01), in the 4th week (t = 30.40, 35.96; P < 0.01), and in the 8th week (t = 34.02, 38.32; P < 0.01).Spearman rank analysis demonstrated that the formation of haze was proportional to the expression of TUNEL positive cells (r = 0.881, P < 0.01) and α-SMA (r = 0.710, P < 0.01). CONCLUSION Amniotic extraction can reduce the formation of haze, which was more effective than 0.1% dexamethasone.It might release certain factors which were transported into corneal matrix, then affected the healing of epithelial cell by interacting with the corneal cell factors, reducing the cell apoptosis, corneal wound healing response and rebuilding the corneal matrix with less myofibroblast, collagen and scar and finally reduce the formation of haze.
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Affiliation(s)
- Qiguo Xiao
- Department of Ophthalmology, the Second Affiliated Hospital of South China University, Hengyang 421001, China
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Boldenow E, Jones S, Lieberman RW, Chames MC, Aronoff DM, Xi C, Loch-Caruso R. Antimicrobial peptide response to group B Streptococcus in human extraplacental membranes in culture. Placenta 2013; 34:480-5. [PMID: 23562109 PMCID: PMC3664555 DOI: 10.1016/j.placenta.2013.02.010] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Revised: 02/18/2013] [Accepted: 02/28/2013] [Indexed: 10/27/2022]
Abstract
OBJECTIVE Streptococcus agalactiae (GBS) is an important cause of chorioamnionitis. This study characterizes GBS colonization and stimulation of antimicrobial responses in human extraplacental membranes using an ex vivo transwell two-compartment system of full-thickness membranes and live GBS. STUDY DESIGN Human extraplacental membranes were affixed to transwell frames (without synthetic membranes). Live GBS was added to the decidual side of membranes in transwell cultures, and cocultures were incubated for 4, 8 and 24 h. GBS recovery from homogenized membranes and culture medium was determined by enumerating colony forming units (CFU) on blood agar. Antimicrobial peptide expression was identified using immunohistochemistry and ELISA. GBS killing by HBDs was assessed in vitro by incubating GBS with different human beta defensins (HBDs) for 3 h, then enumerating CFU. RESULTS GBS recovery from membranes markedly decreased over time (P < 0.05). The antimicrobial peptides HBD-1, HBD-2, HBD-3, and lactoferrin were expressed in both GBS-exposed and non-exposed tissues. Notably, a pattern of localized increased HBD-2 in the amnion of GBS-infected tissue was observed. Moreover, GBS-treated membranes released increased amounts of HBD-2 into the amniotic and decidual compartments of the transwell cultures after 24 h (P < 0.05). In bacterial cultures, HBD-2 decreased GBS viability in a concentration-dependent manner (P < 0.05). CONCLUSION Innate immune responses in ex vivo human extraplacental membranes suppress GBS growth. HBD-2 was implicated in this GBS suppression with evidence of signal transduction across the tissue. Antimicrobial peptides may be important for innate immune defense against intrauterine GBS infections during pregnancy.
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Affiliation(s)
- Erica Boldenow
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029 USA
| | - Sarah Jones
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029 USA
| | - Richard W. Lieberman
- Departments of Pathology and of Obstetrics and Gynecology, Medical School, University of Michigan, 4215 Med Sci I SPC 5602, Ann Arbor, MI 48109-5602 USA
- Department of Obstetrics and Gynecology, Medical School, University of Michigan, Von Voigtlander Women’s Hospital, 1540 E. Hospital Drive, Floor 9, Room 109, Ann Arbor, MI 48109-4264 USA
| | - Mark C. Chames
- Departments of Pathology and of Obstetrics and Gynecology, Medical School, University of Michigan, 4215 Med Sci I SPC 5602, Ann Arbor, MI 48109-5602 USA
| | - David M. Aronoff
- Division of Infectious Diseases, Department of Internal Medicine and Department of Microbiology and Immunology, Medical School, University of Michigan, 5510-E MSRB I, 1150 W. Medical Center Drive, Ann Arbor, MI 48109-5680 USA
| | - Chuanwu Xi
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029 USA
| | - Rita Loch-Caruso
- Department of Environmental Health Sciences, School of Public Health, University of Michigan, 1415 Washington Heights, Ann Arbor, MI 48109-2029 USA
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Shao Y, Yu Y, Tan G, Peng J, Zhou Q, Pei C, Dong W, Gao G. [Biomechanic and biological activity assessment of concavity-convex amniotic membrane]. Sheng Wu Yi Xue Gong Cheng Xue Za Zhi 2012; 29:1114-1118. [PMID: 23469541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This paper conducted research on biomechanical characteristics and biological activity of concavity-convex amniotic membrane (CCAM) and discussed its superiority as ocular surface repair material. Folding and compression with vacuum of fresh amniotic membrane were used to prepare CCAM. After cutting the striga of CCAM, sixteen CCAM tissue section were chosen at random to test their tensile strength using electronic universal testing machine. The bilayer amniotic membrane (BAM), the double-deck amniotic membrane (DAM) and the monolayer amniotic membrane (MAM) were as controls. The test parameters included yield strength, tensile strength, elongation at break, elastic modulus and so on. The cytokines of fresh amniotic membrane (FAM), MAM and CCAM were analyzed by radioimmunoassay method. The CCAM was obviously thicker than MAM and DAM. After 15 min in PBS, the CCAM tissue can recover the normal shape. The tensile strength and the elongation at break of CCAM were higher than those of the MAM and the DAM (P < 0.05). The elastic modulus of the CCAM was smaller than that of the MAM and the DAM (P < 0.05). The content of 10 cytokines [epidermal growth factor (EGF), fibroblast growth factor (FGF), b-fibroblast growth factor b-FGF, hepatocyte growth factor (HGF), transforming growth factor-beta (TGF-beta), insulin-like growth factor (IGF), platelet-derived growth factor (PDGF), vascular endothelial growth factor (VEGF), nerve growth factor (NGF), brain-derived nellrotrophic factor (BDNF), ciliary neurotrophic factor (CNTF)] of CCAM decreased significantly compared with the FAM and increased significantly compared with MAM and DAM in 6 cytokines (EGF, FGF, HGF, TGF-betap, PDGF, NGF; P < 0.05). The CCAM composites is thinner and has higher cytokine content than MAM, and better biomechanical properties than the MAM and the DAM, showing the superiority as ocular surface repair material.
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Affiliation(s)
- Yi Shao
- Department of Ophthalmology, First Affiliated Hospital of Nanchang University, Nanchang 330006, China.
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He H, Li W, Tseng DY, Zhang S, Chen SY, Day AJ, Tseng SCG. Biochemical characterization and function of complexes formed by hyaluronan and the heavy chains of inter-alpha-inhibitor (HC*HA) purified from extracts of human amniotic membrane. J Biol Chem 2009; 284:20136-46. [PMID: 19491101 PMCID: PMC2740440 DOI: 10.1074/jbc.m109.021881] [Citation(s) in RCA: 98] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2009] [Indexed: 01/01/2023] Open
Abstract
Clinically, amniotic membrane (AM) suppresses inflammation, scarring, and angiogenesis. AM contains abundant hyaluronan (HA) but its function in exerting these therapeutic actions remains unclear. Herein, AM was extracted sequentially with buffers A, B, and C, or separately by phosphate-buffered saline (PBS) alone. Agarose gel electrophoresis showed that high molecular weight (HMW) HA (an average of approximately 3000 kDa) was predominantly extracted in isotonic Extract A (70.1 +/- 6.0%) and PBS (37.7 +/- 3.2%). Western blot analysis of these extracts with hyaluronidase digestion or NaOH treatment revealed that HMW HA was covalently linked with the heavy chains (HCs) of inter-alpha-inhibitor (IalphaI) via a NaOH-sensitive bond, likely transferred by the tumor necrosis factor-alpha stimulated gene-6 protein (TSG-6). This HC.HA complex (nHC*HA) could be purified from Extract PBS by two rounds of CsCl/guanidine HCl ultracentrifugation as well as in vitro reconstituted (rcHC*HA) by mixing HMW HA, serum IalphaI, and recombinant TSG-6. Consistent with previous reports, Extract PBS suppressed transforming growth factor-beta1 promoter activation in corneal fibroblasts and induced mac ro phage apoptosis. However, these effects were abolished by hyaluronidase digestion or heat treatment. More importantly, the effects were retained in the nHC*HA or rcHC*HA. These data collectively suggest that the HC*HA complex is the active component in AM responsible in part for clinically observed anti-inflammatory and anti-scarring actions.
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Affiliation(s)
- Hua He
- From TissueTech, Inc. and Ocular Surface Center
| | - Wei Li
- From TissueTech, Inc. and Ocular Surface Center
| | - David Y. Tseng
- Ocular Surface Research Education Foundation, Miami, Florida 33173 and
| | - Shan Zhang
- From TissueTech, Inc. and Ocular Surface Center
| | - Szu-Yu Chen
- From TissueTech, Inc. and Ocular Surface Center
| | - Anthony J. Day
- the Wellcome Trust Centre for Cell-Matrix Research, Faculty of Life Sciences, University of Manchester, Manchester M13 9PT, United Kingdom
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Cameron N, Del Corpo A, Diorio J, McAllister K, Sharma S, Meaney MJ. Maternal programming of sexual behavior and hypothalamic-pituitary-gonadal function in the female rat. PLoS One 2008; 3:e2210. [PMID: 18493313 PMCID: PMC2374899 DOI: 10.1371/journal.pone.0002210] [Citation(s) in RCA: 126] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2007] [Accepted: 03/27/2008] [Indexed: 11/29/2022] Open
Abstract
Variations in parental care predict the age of puberty, sexual activity in adolescence and the age at first pregnancy in humans. These findings parallel descriptions of maternal effects on phenotypic variation in reproductive function in other species. Despite the prevalence of such reports, little is known about potential biological mechanisms and this especially true for effects on female reproductive development. We examined the hypothesis that parental care might alter hypothalamic-pituitary-ovarian function and thus reproductive function in the female offspring of rat mothers that vary pup licking/grooming (LG) over the first week postpartum. As adults, the female offspring of Low LG mothers showed 1) increased sexual receptivity; 2) increased plasma levels of luteinizing hormone (LH) and progesterone at proestrus; 3) an increased positive-feedback effect of estradiol on both plasma LH levels and gonadotropin releasing-hormone (GnRH) expression in the medial preoptic region; and 4) increased estrogen receptor α (ERα) expression in the anterioventral paraventricular nucleus, a system that regulates GnRH. The results of a cross-fostering study provide evidence for a direct effect of postnatal maternal care as well as a possible prenatal influence. Indeed, we found evidence for increased fetal testosterone levels at embryonic day 20 in the female fetuses of High compared to Low LG mothers. Finally, the female offspring of Low LG mothers showed accelerated puberty compared to those of High LG mothers. These data suggest maternal effects in the rat on the development of neuroendocrine systems that regulate female sexual behaviour. Together with studies revealing a maternal effect on the maternal behavior of the female offspring, these findings suggest that maternal care can program alternative reproductive phenotypes in the rat through regionally-specific effects on ERα expression.
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Affiliation(s)
- Nicole Cameron
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Adina Del Corpo
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Josie Diorio
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Kelli McAllister
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Shakti Sharma
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
| | - Michael J. Meaney
- Sackler Program for Epigenetics & Psychobiology at McGill University and the Douglas Mental Health University Institute, McGill University, Montréal, Canada
- * E-mail:
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Gómez López N, Estrada Gutiérrez G, Beltrán Montoya J, Espejel Núñez A, Vadillo Ortega F. [Extracellular matrix metalloproteases profile identification in chorioamniotic membranes of term and preterm pregnancies through soluble microarrays]. Ginecol Obstet Mex 2008; 76:32-37. [PMID: 18798393] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
BACKGROUND Physiological and pathological membrane rupture is a complex phenomenon with different biochemical processes; it is known that collagenolitic activity rises and collagen content diminishes within term tissue membranes in comparison to preterm membranes. Identification of these processes within rupture mechanism allows to suggest that fetal membranes and decidua can respond to biochemical and mechanical stimulus alike, and to produce mediators that degrade matrix of intracellular membranes. OBJECTIVE To identify simultaneously, whit a soluble microarray, different matrix metalloproteinases in extracts from amniochorion of pregnancies at term and preterm. PATIENTS AND METHODS Biomedical experimental study where amniochorion explants were obtained from four women groups. Group 1: at term with spontaneous labor; group 2: at term without labor; group 3: at term with premature rupture of membranes, and group 4: preterm labor. Explants were cultured for 24 h and then homogenated in their own culture media to obtain cell free extracts. MMP were identified in these extracts using a soluble microarray for MMPs that included: MMP-1, -2, -3, -7, -8, -9, -12 and -13. RESULTS MMP-8 and -2 were the enzymes most abundant in all the extracts of amniochorion. However, the concentration of MMP-8 in the extracts of group 3 (PROM) was significantly greater in comparison with the extracts of groups 1 and 2 (p = 0.01). The MMP-8 also was in greater concentration in the extracts of group 4 (preterm labor) in comparison with in the extracts of group 1 (p = 0.01). CONCLUSION Activation of cellular processes that lead to the degradation of connective tissue in the MCA under physiological conditions seems to defer in originating tissues from cases with PROM or preterm labor, and this activation is characterized by an increase in the concentration of MMP-8.
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Affiliation(s)
- Nardhy Gómez López
- Departamento de especialidades médicas, Instituto Nacional de Perinatología Isidro Espinosa de los Reyes, Lomas de Virreyes, México
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Tskitishvili E, Komoto Y, Kinugasa Y, Kanagawa T, Song M, Mimura K, Tomimatsu T, Kimura T, Shimoya K. The human tumor-associated antigen RCAS1 in pregnancies complicated by pre-eclampsia. J Reprod Immunol 2008; 77:100-8. [PMID: 17604121 DOI: 10.1016/j.jri.2007.05.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2007] [Revised: 04/26/2007] [Accepted: 05/16/2007] [Indexed: 01/27/2023]
Abstract
The human tumor-associated antigen RCAS1 (receptor-binding cancer antigen expressed on SiSo cells) is considered to play a role in the escape of tumor cells from immune surveillance and, at the same time, participates in the inhibition of the maternal immune response during pregnancy. The aim of our study was to investigate the expression of tumor-associated RCAS1 protein in the placenta and amniotic membranes and to assess and compare its concentration in amniotic fluid, maternal and cord blood sera in pregnancies complicated by pre-eclampsia. Samples were obtained from women with pre-eclampsia (N=9), pre-eclampsia with IUGR (N=4), normotensive IUGR (N=7) and healthy term controls (N=25) after delivery. Placentas were studied by immunohistochemistry, Western blot analysis and real-time (RT)-PCR. For assessment of RCAS1 protein concentrations in biological fluids, ELISA was performed. RCAS1 mRNA expression in the placentas of pre-eclamptic patients was significantly lower than in controls (p<0.01). The maternal blood serum RCAS1 protein concentration in the pre-eclampsia cases was also significantly lower than in controls (p=0.0207). The other study groups did not differ significantly. This study reveals the possible role of the RCAS1 protein in the development of pre-eclampsia through an immunological pathway.
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Affiliation(s)
- E Tskitishvili
- Department of Obstetrics and Gynecology, Osaka University Graduate School of Medicine, Suita City, Osaka, Japan.
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Wang W, Wei W, Ning Q, Luo XP. [Effect of intra-amniotic endotoxin priming plus hyperoxic exposure on the expression of vascular endothelial growth factor and its receptors in lungs of preterm newborn rats]. Zhonghua Er Ke Za Zhi 2007; 45:533-538. [PMID: 17953812] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
OBJECTIVE Bronchopulmonary displasia (BPD) is characterized by decreased alveolar development resulting in large saccular airspaces that are thought to result from the superposition of injury on the developing lung. Inflammation and hyperoxia appear to be the common factors. Preterm delivery is frequently preceded by chorioamnionitis, resulting in exposure of the fetal lung to inflammation. Subsequently, resuscitation with positive-pressure ventilation or supplemental O2 can continue to injure the lungs. Although mechanisms that impair lung growth in BPD are poorly understood, recent studies have shown that disruption of vascular endothelial growth factor (VEGF) function plays a pivotal role in the pathogenesis of BPD. The purpose of this study was to investigate the expression of VEGF and its receptors in premature lungs of rats with intra-amniotic endotoxin priming and/or exposed to 60% O2 and to elucidate the relationship between intrauterine inflammatory/chronic high O2 exposure and the pathogenesis of BPD. METHODS Timed pregnant Sprague Dawley (SD) rats were randomly divided into two groups: lipopolysaccharide (LPS) group and saline solution group. LPS or saline solution was intra-amniotically injected into the sacs on gestational age day 15 (70% of term). Six days after intra-amniotic injection, the preterm rats of each group were delivered and further randomized to put in 60% O2 exposure or in room air. On days 1, 7 and 14 after birth, the lungs of the rats from both groups were removed and dissected from the main bronchi for analysis. Left lungs of each group were used to assess lung histological changes after hematoxylin and eosin (HE) staining. Total RNA and protein were extracted from the right frozen lung tissues. Lung VEGF and its receptors mRNA and protein levels were measured by semi-quantitative reverse transcription polymerase chain reaction (RT-PCR) and polypeptides analysis (Western blot). RESULTS (1) Lung histology revealed striking differences in lung structure in the four experimental groups. Compared with control rat lungs, endotoxin and/or hyperoxia treated groups showed a histological pattern of alveolar simplification characterized by the presence of larger and fewer distal air spaces. To quantify the apparent decreases in alveolar number, radial alveolar counts (RAC) were measured in the four experimental groups: RAC increased along with the lung development from d 1 to d 14 in both control and endotoxin alone groups. However, in endotoxin alone group, RAC was significantly lower than that of controls from d 1 to d 14. In hyeroxia alone group, RAC began to decrease on day 7, and became significantly lower than that of the control group on day 14 (P < 0.05). In endotoxin plus hyperoxia groups, RAC significantly decreased as compared to controls on days 1 and 7, and became significantly lower than those of the other three groups on day 14. (2) Western blotting showed changes in protein content of VEGF164 and its receptor Flk-1 increased from day 1 to day 14 in both control group and endotoxin alone group. However, In endotoxin alone group, they were significantly lower than those of controls from d 1 to d 7 (P < 0.05). Conversely, they decreased from day 1 to day 14 in the other two groups, and were significantly lower than those of the control group on days 7 and 14 in both hyperoxia alone group and endotoxin plus hyperoxia groups. Importantly, the expression of VEGF and its receptor in endotoxin plus hyperoxia group was lower than those of both the hyperoxia alone group and the endotoxin alone group with significant difference. The levels of Flt-1 had obviously an age-dependent increase from day 1 to day 14 in the four experimental groups. (3) The changes of mRNA expression of VEGF and its receptors were basically consistent with the changes on protein expression. CONCLUSIONS These results suggest that the intra-amniotic endotoxin and/or hyperoxia can down-regulate expression of VEGF and Flk-1, which may contribute to the pathogenesis of BPD.
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Affiliation(s)
- Wei Wang
- Department of Pediatrics, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Baharvand H, Ebrahimi M, Javadi MA. Comparison of characteristics of cultured limbal cells on denuded amniotic membrane and fresh conjunctival, limbal and corneal tissues. Dev Growth Differ 2007; 49:241-51. [PMID: 17394602 DOI: 10.1111/j.1440-169x.2007.00924.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
This study aimed to evaluate proposed molecular markers related to eye limbal stem cells (SC) and to identify novel associated genes. The expression of a set of genes potentially involved in stemness was assessed in freshly prepared limbal, corneal and conjunctival tissues. PAX6, AC133, K12 and OCT4 were detected in all the tissues and p63(+)/K3(-)/K12(+)/Nodal(+)/Cx43(+) were expressed in conjunctival, p63(-)/K3(+)/K12(+)/Nodal(-)/Cx43(+) in corneal, and p63(+)/K3(-)/K12(-)/Nodal(-)/Cx43(-) in limbal tissues. Limbal explants were cultured on human amniotic membrane for 21 days. The cells expressed p63 but not K3, K12, Nodal and Cx43, however, the expression of K3, K12 and Cx43 was detected, and p63 and the high BrdU-labeling index decreased with more culture. Ultrastructure analysis of the cultured cells showed typically immature organization of intracellular organelles and architecture. Our data suggest that limbal, corneal and conjunctival tissues are heterogeneous with some progenitors. Also, the expression of traditional SC markers may not be a reliable indicator of limbal SC and there is an increasing need to determine factor(s) involved in their stemness.
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Affiliation(s)
- Hossein Baharvand
- Department of Stem Cells, Royan Institute, PO Box 19395-4644, Tehran, Iran.
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Jiang A, Li C, Gao Y, Zhang M, Hu J, Kuang W, Hao S, Yang W, Xu C, Gao G, Wang Z, Liu Z. In vivo and in vitro inhibitory effect of amniotic extraction on neovascularization. Cornea 2007; 25:S36-40. [PMID: 17001191 DOI: 10.1097/01.ico.0000247211.78391.af] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
PURPOSE To prepare amniotic extraction (AE) and to test its antiangiogenic effect in vivo and in vitro. METHODS AE was prepared and diluted to 50, 100, and 200 microg/mL concentrations. Alkali burn-induced corneal neovascularization (NV) was produced and topically treated with different concentrations of AE or 0.1% dexamethasone for 7 days. Normal saline was used as a control. Corneal NV was visualized by heart perfusion of Chinese ink and quantified as the percentage of corneal NV area to the whole corneal area. Human umbilical vein endothelial cells (HUVECs) were primarily cultured. The effects of AE on proliferation and tube formation of HUVECs were tested by 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method and in vitro angiogenesis assay. Pigment epithelium-derived factor (PEDF) in AE was detected by Western blot. RESULTS Relative corneal NV area in the control group was 56.6% +/- 9.9%, which was significantly reduced by 50 microg/mL AE (47.6% +/- 6.9%; P = 0.043) and 200 microg/mL AE (34.3% +/- 7.8%; P < 0.001) and by 0.1% dexamethasone (21.1% +/- 1.8%; P < 0.001). HUVEC cell proliferation was significantly decreased after treatment with AE at concentrations of 50 and 100 microg/mL compared with control (P = 0.036 and 0.001, respectively). The tube formation was significantly suppressed by 100 microg/mL AE (70.03% +/- 4.35%) compared with control (100% +/- 4.84%; P = 0.002). No expression of PEDF was detected in AE. CONCLUSION AE inhibits NV induced by alkali burn. This effect may be elicited at least in part through the inhibiting activity of blood vessel endothelial cells and is not associated with PEDF.
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Affiliation(s)
- Aihua Jiang
- Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, China
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Han YM, Romero R, Kim YM, Kim JS, Richani K, Friel LA, Kusanovic JP, Jeanty C, Vitale S, Nien JK, Espinoza J, Kim CJ. Surfactant protein-A mRNA expression by human fetal membranes is increased in histological chorioamnionitis but not in spontaneous labour at term. J Pathol 2007; 211:489-96. [PMID: 17273989 DOI: 10.1002/path.2131] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Surfactant protein-A (SP-A) is produced by the fetal lung, participates in innate immunity, and has been proposed to play a role in the initiation of parturition in mice. Amniotic fluid SP-A concentration increases as a function of gestational age, and SP-A protein has been demonstrated in human chorioamniotic membranes. This study was conducted to determine whether parturition at term, gestational age and chorioamnionitis in preterm delivery (PTD) are associated with changes in the expression of SP-A in the chorioamniotic membranes. Chorioamniotic membranes were obtained from women at term and women with PTD (n=58). SP-A mRNA and protein expression was detected in amniotic epithelial cells, chorionic trophoblasts and macrophages by in situ hybridization and immunohistochemistry. Quantitative real-time reverse transcription-PCR demonstrated predominant expression of SP-A1 mRNA, whose expression was 17.4-fold higher in patients with PTD with chorioamnionitis (n=15) than in those without (n=13) (p=0.018). While no difference was observed in SP-A1 mRNA expression in the chorioamniotic membranes of women at term not in labour (n=16) and those in labour (n=14) (p=0.87), the expression in term membranes was higher than that of membranes from women with PTD without chorioamnionitis (p=0.003). Analysis of JAR choriocarcinoma cells demonstrated SP-A1 mRNA expression that was up-regulated following lipopolysaccharide treatment. Furthermore, monocytic cell lines (THP-1 and U937) and peripheral blood monocytes (CD14+/CD115+) obtained from pregnant women also expressed SP-A1 mRNA and protein, suggesting the presence of autocrine/paracrine activation in vivo. Interestingly, a mid-trimester amniotic fluid sample obtained from a case of tracheal atresia contained SP-A (3.13 microg/ml), indicating the presence of SP-A of extrapulmonary origin. These findings suggest not only that SP-A expression is a part of the innate immune response deployed during chorioamniotic inflammation, but also that chorioamniotic membranes are a source of SP-A in the amniotic fluid with advancing gestation.
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Affiliation(s)
- Y M Han
- Perinatology Research Branch, National Institute of Child Health and Human Development, NIH, DHHS, Bethesda, MD, and Detroit, MI 48201, USA
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Zhang JH, Pearson T, Matharoo-Ball B, Ortori CA, Warren AY, Khan R, Barrett DA. Quantitative profiling of epoxyeicosatrienoic, hydroxyeicosatetraenoic, and dihydroxyeicosatetraenoic acids in human intrauterine tissues using liquid chromatography/electrospray ionization tandem mass spectrometry. Anal Biochem 2007; 365:40-51. [PMID: 17418798 DOI: 10.1016/j.ab.2007.03.001] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2006] [Revised: 03/01/2007] [Accepted: 03/02/2007] [Indexed: 11/20/2022]
Abstract
A reversed-phase liquid chromatography negative ion electrospray tandem mass spectrometry (LC/ESI-MS/MS) method was developed and validated to quantify a range of physiologically relevant eicosanoids, including 5,6-, 8,9-, 11,12-, and 14,15-epoxyeicosatrienoic acids (EETs); 5-, 8-, 9-, 12-, and 15-hydroxyeicosatetraenoic acids (HETEs), and 5,6-, 8,15-, and 12,20-dihydroxyeicosatetraenoic acids (DiHETEs) in human intrauterine tissues. A solid-phase extraction method was employed to extract the eicosanoids, and gradient LC separation was performed on a Kromasil C(18) column. Mass spectrometric detection was performed by multiple reaction monitoring over a 31-min run time. The calibration curves were linear over the range of 4-400pmol/g tissue, and the intra- and interday precision and accuracy were within a coefficient of variation of 2.0 to 27.4% and 4.6 to 17.9%, respectively. The lower limit of quantitation was 1.0pmol/g tissue. The method was applied successfully to the characterization and quantitation of eicosanoids in the different compartments of human intrauterine tissues. Our results demonstrate significantly greater amounts of HETEs than of either the EETs or DiHETEs (P<0.001), irrespective of tissue type. Specifically, the metabolite 12-HETE was significantly more abundant (P<0.001) than all other HETEs. Of the EET metabolites, 5,6-EET predominated (P<0.001). A significant negative correlation between EETs and HETEs for all tissues (rho=-0.390, P<0.001) was identified, implying a biological feedback mechanism between these two arachidonate metabolite classes.
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Affiliation(s)
- Ji-Hong Zhang
- Centre for Analytical Bioscience, School of Pharmacy, University of Nottingham, Nottingham NG7 2RD, UK
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Uchino Y, Shimmura S, Miyashita H, Taguchi T, Kobayashi H, Shimazaki J, Tanaka J, Tsubota K. Amniotic membrane immobilized poly(vinyl alcohol) hybrid polymer as an artificial cornea scaffold that supports a stratified and differentiated corneal epithelium. J Biomed Mater Res B Appl Biomater 2007; 81:201-6. [PMID: 16924609 DOI: 10.1002/jbm.b.30654] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Poly(vinyl alcohol) (PVA) is a biocompatible, transparent hydrogel with physical strength that makes it promising as a material for an artificial cornea. In our previous study, type I collagen was immobilized onto PVA (PVA-COL) as a possible artificial cornea scaffold that can sustain a functional corneal epithelium. The cellular adhesiveness of PVA in vitro was improved by collagen immobilization; however, stable epithelialization was not achieved in vivo. To improve epithelialization in vivo, we created an amniotic membrane (AM)-immobilized polyvinyl alcohol hydrogel (PVA-AM) for use as an artificial cornea material. AM was attached to PVA-COL using a tissue adhesive consisting of collagen and citric acid derivative (CAD) as a crosslinker. Rabbit corneal epithelial cells were air-lift cultured with 3T3 feeder fibroblasts to form a stratified epithelial layer on PVA-AM. The rabbit corneal epithelial cells formed 3-5 layers of keratin-3-positive epithelium on PVA-AM. Occludin-positive cells were observed lining the superficial epithelium, the gap-junctional protein connexin43-positive cells was localized to the cell membrane of the basal epithelium, while both collagen IV were observed in the basement membrane. Epithelialization over implanted PVA-AM was complete within 2 weeks, with little inflammation or opacification of the hydrogel. Corneal epithelialization on PVA-AM in rabbit corneas improved over PVA-COL, suggesting the possibility of using PVA-AM as a biocompatible hybrid material for keratoprosthesis.
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Affiliation(s)
- Yuichi Uchino
- Department of Ophthalmology, Tokyo Dental College, Chiba, Japan
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Hopkinson A, McIntosh RS, Shanmuganathan V, Tighe PJ, Dua HS. Proteomic analysis of amniotic membrane prepared for human transplantation: characterization of proteins and clinical implications. J Proteome Res 2006; 5:2226-35. [PMID: 16944934 DOI: 10.1021/pr050425q] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Amniotic membrane is commonly exploited in several surgical procedures. Despite a freeze preservation period, it is reported to retain wound healing, anti-angiogenic, antiinflammatory and anti-scarring properties; however, little is known about the active protein content. 2-DE analysis of transplant-ready amniotic membrane (TRAM) was performed. The effects of preservation and processing on amnion proteome were investigated, and the major proteins in the TRAM characterized using mass spectrometry and immunoblotting. This identified a spectrum of proteins including thrombospondin, mimecan, BIG-H3, and integrin alpha 6. Preservation compromises cellular viability resulting in selective elution of soluble cellular proteins, leaving behind extracellular matrix-associated and cell structural proteins. A number of key architectural proteins common to the architecture of the ocular surface were demonstrated in AM, which are involved in homeostasis and wound healing. Handling procedures alter the protein composition of amniotic membrane prepared for transplantation. Without standardization, there will be inter-membrane variation, which may compromise the desired therapeutic effect of transplant ready amniotic membrane.
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Affiliation(s)
- Andrew Hopkinson
- Division of Ophthalmology and Visual Sciences, University of Nottingham, United Kingdom
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Hirschfeld AF, Jiang R, Robinson WP, McFadden DE, Turvey SE. Toll-like receptor 4 polymorphisms and idiopathic chromosomally normal miscarriage. Hum Reprod 2006; 22:440-3. [PMID: 16982657 DOI: 10.1093/humrep/del377] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
Abstract
BACKGROUND Lipopolysaccharide (LPS or endotoxin) exposure resulting from microbial invasion of the endometrium disturbs the Th1/Th2 balance at the feto-maternal interface and has been linked to the risk of idiopathic miscarriage in a range of human and animal studies. Toll-like receptor 4 (TLR4) mediates LPS signalling, and the human TLR4 gene harbours two single-nucleotide polymorphisms (SNPs) known to reduce LPS responsiveness. We hypothesized that genetic variation altering TLR4 function may influence the risk of idiopathic pregnancy loss. METHODS AND RESULTS We examined fetal TLR4 genotypes in a case-control cohort of chromosomally normal miscarriages (n=96) and healthy term newborns (n=113). The allele frequencies of the Asp299Gly and Thr399Ile TLR4 SNPs were determined by quantitative PCR using DNA extracted from extraembryonic tissues and umbilical cord blood, respectively. TLR4 genotype frequencies were not significantly different between cases and controls. CONCLUSIONS There was no association between fetal TLR4 polymorphisms, Asp299Gly and Thr399Ile, known to blunt LPS responsiveness, and the risk of idiopathic, chromosomally normal miscarriage. Nevertheless, TLR4 or perhaps other LPS-binding chaperone molecules are biologically plausible candidate genes that may alter the risk of idiopathic miscarriage.
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Affiliation(s)
- A F Hirschfeld
- Department of Paediatrics, BC Children's Hospital and Child & Family Research Institute, Vancouver, Canada
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Cottingham K. Sample handling washes proteins away. J Proteome Res 2006; 5:2074. [PMID: 16969946 DOI: 10.1021/pr062753b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Kawashima K. [Expression of non-neuronal acetylcholine and its biological roles in mammalian species]. Nihon Yakurigaku Zasshi 2006; 127:368-74. [PMID: 16819242 DOI: 10.1254/fpj.127.368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Ota M, Sawamura D, Yokota K, Ueda M, Horiguchi Y, Kodama K, Goto M, Shimizu H. A unique monoclonal antibody 29A stains the cytoplasm of amniotic epithelia and cutaneous basement membrane. J Dermatol Sci 2006; 42:23-9. [PMID: 16364600 DOI: 10.1016/j.jdermsci.2005.11.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2005] [Revised: 11/16/2005] [Accepted: 11/16/2005] [Indexed: 11/26/2022]
Abstract
BACKGROUND The basic function of epithelia is to provide a boundary between tissue and its external environment, and is achieved by a wide variety of components including extracellular molecules. Multiple monoclonal antibodies raised against epithelial antigens have helped identify a range of distinct, novel protein epitopes. OBJECT In this study, we raised a monoclonal antibody to detect a novel epithelial molecular component. METHODS We have produced a mouse monoclonal antibody using normal human amniotic tissue as an immunogen. The monoclonal antibody was subsequently immunohistochemically screened, and the target antigen was cloned using an immunoscreening method. RESULT In the course of the screening, we identified unique antibody staining patterns within the cytoplasm of a subset of amniotic cells at intervals within the normal placental epithelia. By immunoscreening, we identified this candidate gene as laminin receptor (LR). By dot blot analysis, this antibody reacted with recombinant LR. The same localization of the antigen and LR was proved by a double staining immunofluorescence test in the placenta. This monoclonal antibody unexpectedly demonstrated linear staining within the dermal-epidermal junction of normal human skin but failed to react within the keratinocyte cytoplasm. CONCLUSION We have produced and characterized a novel monoclonal antibody 29A that recognizes an LR-related molecule, which demonstrated a unique staining pattern. This monoclonal antibody might be a useful tool for further investigations into the epithelial tissues and the cutaneous basement membrane (BM).
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Affiliation(s)
- Mitsuhito Ota
- Department of Dermatology, Hokkaido University Graduate School of Medicine, N-15, W-7, Sapporo 060-8638, Japan
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