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Guo X, Zhang W, Lu J, Zhu Y, Sun H, Xu D, Xian S, Yao Y, Qian W, Lu B, Shi J, Ding X, Li Y, Tong X, Xiao S, Huang R, Ji S. Amniotic miracle: Investigating the unique development and applications of amniotic membrane in wound healing. Skin Res Technol 2024; 30:e13860. [PMID: 39073182 DOI: 10.1111/srt.13860] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2024] [Accepted: 06/22/2024] [Indexed: 07/30/2024]
Abstract
BACKGROUND The perfect repair of damaged skin has always been a constant goal for scientists; however, the repair and reconstruction of skin is still a major problem and challenge in injury and burns medicine. Human amniotic membrane (hAM), with its good mechanical properties and anti-inflammatory, antioxidant and antimicrobial benefits, containing growth factors that promote wound healing, has evolved over the last few decades from simple skin sheets to high-tech dressings, such as being made into nanocomposites, hydrogels, powders, and electrostatically spun scaffolds. This paper aims to explore the historical development, applications, trends, and research hotspots of hAM in wound healing. METHODS We examined 2660 publications indexed in the Web of Science Core Collection (WoSCC) from January 1, 1975 to July 12, 2023. Utilizing bibliometric methods, we employed VOSviewer, CiteSpace, and R-bibliometrix to characterize general information, identify development trends, and highlight research hotspots. Subsequently, we identified a collection of high-quality English articles focusing on the roles of human amniotic epithelial stem cells (hAESCs), human amniotic mesenchymal stem cells (hAMSCs), and amniotic membrane (AM) scaffolds in regenerative medicine and tissue engineering. RESULTS Bibliometric analysis identified Udice-French Research Universities as the most productive affiliation and Tseng S.C.G. as the most prolific author. Keyword analysis, historical direct quotations network, and thematic analysis helped us review the historical and major themes in this field. Our examination included the knowledge structure, global status, trends, and research hotspots regarding the application of hAM in wound healing. Our findings indicate that contemporary research emphasizes the preparation and application of products derived from hAM. Notably, both hAM and the cells isolated from it - hADSCs and hAESCs are prominent and promising areas of research in regenerative medicine and tissue engineering. CONCLUSION This research delivers a comprehensive understanding of the knowledge frameworks, global dynamics, emerging patterns, and primary research foci in the realm of hAM applications for wound healing. The field is rapidly evolving, and our findings offer valuable insights for researchers. Future research outcomes are anticipated to be applied in clinical practice, enhancing methods for disease prevention, diagnosis, and treatment.
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Affiliation(s)
- Xinya Guo
- School of Health Science and Engineering, University of Shanghai for Science and Technology, Shanghai, China
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Wei Zhang
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Jianyu Lu
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yushu Zhu
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Hanlin Sun
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Dayuan Xu
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Shuyuan Xian
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Yuntao Yao
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Weijin Qian
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Bingnan Lu
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jiaying Shi
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoyi Ding
- Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yixu Li
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Xirui Tong
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Shichu Xiao
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Runzhi Huang
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
| | - Shizhao Ji
- Department of Burn Surgery, Research Unit of key techniques for treatment of burns and combined burns and trauma injury, The First Affiliated Hospital of Naval Medical University, Shanghai, People's Republic of China, Chinese Academy of Medical Sciences, Shanghai, China
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Villanueva PJ, Sugiyama T, Villanueva BM, Rodriguez HI, Arciénaga A, Cherian I. Using Engineering Methods (Kaizen and Micromovements Science) to Improve and Provide Evidence Regarding Microsurgical Hand Skills. World Neurosurg 2024:S1878-8750(24)01033-7. [PMID: 38906471 DOI: 10.1016/j.wneu.2024.06.075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2024] [Revised: 06/14/2024] [Accepted: 06/15/2024] [Indexed: 06/23/2024]
Abstract
OBJECTIVE Microsurgical interventions involve the interaction of numerous variables, making objective analysis of skill proficiency challenging. This difficulty is even more pronounced in low-resource contexts. Continuous improvement methodologies such as Kaizen-planning, doing, checking, acting (PDCA) and micromovements science (MMS) can address this issue. This study aimed to demonstrate the advantages of designing and implementing microsurgical training programs using these methodologies. METHODS Following an extensive literature review of Kaizen-PDCA and MMS, and under the guidance of experienced neurosurgeons and engineers, a microvascular bypass training program was developed using the human placenta. Subsequently, the training program was used to analyze and describe the process of a trainee neurosurgeon in Argentina with no prior experience in microvascular anastomosis, as the operator gained proficiency. RESULTS The trainee required 12 attempts to achieve the program goals. The longest procedural time was during the first attempt (1 hour 49 minutes 05 seconds with 2 mistakes), while the shortest time was during the fourth attempt (53 minutes 29 seconds with 3 mistakes). After 12 attempts, the trainee made no mistakes, and the procedural time was reduced to 57 minutes 37 seconds. The final learning curve demonstrated a regular pattern and reached a plateau after 7 attempts. CONCLUSIONS The training program and methodology effectively assessed, facilitated, and demonstrated the acquisition of microsurgical skills. Kaizen-PDCA and MMS enabled the effective use of expert experience, detailed evaluation of microsurgical procedures, and integration into a continuous improvement cycle. The program structure could also be valuable for teaching, evaluating, and enhancing similar surgical procedures.
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Affiliation(s)
- Pablo Javier Villanueva
- Department of Neurosurgery, Hospital Regional de San Martin de los Andes, Neuquen, Argentina.
| | - Taku Sugiyama
- Department of Neurosurgery, Hokkaido University Hospital, Sapporo, Hokkaido, Japan
| | | | | | - Antonio Arciénaga
- Engineering Department, Universidad Nacional de Salta, Salta, Argentina
| | - Iype Cherian
- Department of Neurosurgery, Krishna Institute of Medical Science, Karad, India
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Kadivar M, Sangsari R, Rostamli S, Sotoudeh S, Mirnia K. Amniotic membrane dressings for treatment of aplasia cutis in newborns. Pediatr Dermatol 2024; 41:445-450. [PMID: 38409959 DOI: 10.1111/pde.15540] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/13/2024] [Indexed: 02/28/2024]
Abstract
BACKGROUND Aplasia cutis congenita (ACC) is a rare congenital skin defect characterized by a focal or extensive absence of the epidermis, dermis, and occasionally, subcutaneous tissue. When the wound caused by this defect is wide or deep, various treatments are used, including skin grafting. The amniotic membrane (AM) is a biological dressing that facilitates re-epithelialization as it contains mesenchymal cells and numerous growth factors. OBJECTIVE To report the efficacy of AM dressings in treating the skin defects of ACC. METHOD This study was conducted on five neonates diagnosed with ACC born between 2018 and 2022, referred to the Children's Medical Center in Tehran, Iran. AM dressings were applied on wounds larger than 1 cm2. The wounds were assessed weekly and, if required, an additional AM dressing was applied. RESULTS The skin defects gradually re-epithelialized after application of the AM. The complete healing process took around 3.5 weeks on average. No hypertrophic scarring was observed. CONCLUSION The application of AM dressing resulted in satisfactory cosmetic outcomes, with no hypertrophic scar formation. Complete healing occurred in all cases except one. The length of the hospital stay ranged from 2 to 6 weeks, depending on the size of the wound.
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Affiliation(s)
- Maliheh Kadivar
- Department of Pediatrics, Division of Neonatology, School of Medicine, Tehran University of Medical Sciences, Children's Medical Center, Tehran, Iran
| | - Razieh Sangsari
- Department of Pediatrics, Division of Neonatology, School of Medicine, Tehran University of Medical Sciences, Children's Medical Center, Tehran, Iran
| | - Somayeh Rostamli
- Neonatal Intensive Care Nursing, Tehran University of Medical Sciences, Tehran, Iran
| | - Soheila Sotoudeh
- Department of Dermatology, Children's Medical Center, Tehran University of Medical Sciences, Tehran, Iran
| | - Kayvan Mirnia
- Department of Pediatrics, Division of Neonatology, School of Medicine, Tehran University of Medical Sciences, Children's Medical Center, Tehran, Iran
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Maljaars L, Gudde A, Oosthuysen A, Roovers JP, Guler Z. The Regenerative Capacity of Tissue-Engineered Amniotic Membranes. ACS APPLIED BIO MATERIALS 2024; 7:1441-1448. [PMID: 38391263 PMCID: PMC10951947 DOI: 10.1021/acsabm.3c00765] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2023] [Revised: 02/07/2024] [Accepted: 02/08/2024] [Indexed: 02/24/2024]
Abstract
Scaffolds can be introduced as a source of tissue in reconstructive surgery and can help to improve wound healing. Amniotic membranes (AMs) as scaffolds for tissue engineering have emerged as promising biomaterials for surgical reconstruction due to their regenerative capacity, biocompatibility, gradual degradability, and availability. They also promote fetal-like scarless healing and provide a bioactive matrix that stimulates cell adhesion, migration, and proliferation. The aim of this study was to create a tissue-engineered AM-based implant for the repair of vesicovaginal fistula (VVF), a defect between the bladder and vagina caused by prolonged obstructed labor. Layers of AMs (with or without cross-linking) and electrospun poly-4-hydroxybutyrate (P4HB) (a synthetic, degradable polymer) scaffold were joined together by fibrin glue to produce a multilayer scaffold. Human vaginal fibroblasts were seeded on the different constructs and cultured for 28 days. Cell proliferation, cell morphology, collagen deposition, and metabolism measured by matrix metalloproteinase (MMP) activity were evaluated. Vaginal fibroblasts proliferated and were metabolically active on the different constructs, producing a distributed layer of collagen and proMMP-2. Cell proliferation and the amount of produced collagen were similar across different groups, indicating that the different AM-based constructs support vaginal fibroblast function. Cell morphology and collagen images showed slightly better alignment and organization on the un-cross-linked constructs compared to the cross-linked constructs. It was concluded that the regenerative capacity of AM does not seem to be affected by mechanical reinforcement with cross-linking or the addition of P4HB and fibrin glue. An AM-based implant for surgical repair of internal organs requiring load-bearing functionality can be directly translated to other types of surgical reconstruction of internal organs.
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Affiliation(s)
- Lennart Maljaars
- Department
of Obstetrics and Gynecology, Amsterdam
UMC location University of Amsterdam, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
- Amsterdam
Reproduction and Development research institute, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
| | - Aksel Gudde
- Department
of Obstetrics and Gynecology, Amsterdam
UMC location University of Amsterdam, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
- Amsterdam
Reproduction and Development research institute, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
| | - Anel Oosthuysen
- Cardiovascular
Research Unit, University of Cape Town, Anzio Road, Observatory, 7925 Cape Town, South Africa
| | - Jan-Paul Roovers
- Department
of Obstetrics and Gynecology, Amsterdam
UMC location University of Amsterdam, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
- Amsterdam
Reproduction and Development research institute, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
| | - Zeliha Guler
- Department
of Obstetrics and Gynecology, Amsterdam
UMC location University of Amsterdam, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
- Amsterdam
Reproduction and Development research institute, Meibergdreef 9, 1105
AZ Amsterdam, The
Netherlands
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Kafili G, Niknejad H, Tamjid E, Simchi A. Amnion-derived hydrogels as a versatile platform for regenerative therapy: from lab to market. Front Bioeng Biotechnol 2024; 12:1358977. [PMID: 38468689 PMCID: PMC10925797 DOI: 10.3389/fbioe.2024.1358977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Accepted: 02/09/2024] [Indexed: 03/13/2024] Open
Abstract
In recent years, the amnion (AM) has emerged as a versatile tool for stimulating tissue regeneration and has been of immense interest for clinical applications. AM is an abundant and cost-effective tissue source that does not face strict ethical issues for biomedical applications. The outstanding biological attributes of AM, including side-dependent angiogenesis, low immunogenicity, anti-inflammatory, anti-fibrotic, and antibacterial properties facilitate its usage for tissue engineering and regenerative medicine. However, the clinical usage of thin AM sheets is accompanied by some limitations, such as handling without folding or tearing and the necessity for sutures to keep the material over the wound, which requires additional considerations. Therefore, processing the decellularized AM (dAM) tissue into a temperature-sensitive hydrogel has expanded its processability and applicability as an injectable hydrogel for minimally invasive therapies and a source of bioink for the fabrication of biomimetic tissue constructs by recapitulating desired biochemical cues or pre-defined architectural design. This article reviews the multi-functionality of dAM hydrogels for various biomedical applications, including skin repair, heart treatment, cartilage regeneration, endometrium regeneration, vascular graft, dental pulp regeneration, and cell culture/carrier platform. Not only recent and cutting-edge research is reviewed but also available commercial products are introduced and their main features and shortcomings are elaborated. Besides the great potential of AM-derived hydrogels for regenerative therapy, intensive interdisciplinary studies are still required to modify their mechanical and biological properties in order to broaden their therapeutic benefits and biomedical applications. Employing additive manufacturing techniques (e.g., bioprinting), nanotechnology approaches (e.g., inclusion of various bioactive nanoparticles), and biochemical alterations (e.g., modification of dAM matrix with photo-sensitive molecules) are of particular interest. This review article aims to discuss the current function of dAM hydrogels for the repair of target tissues and identifies innovative methods for broadening their potential applications for nanomedicine and healthcare.
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Affiliation(s)
- Golara Kafili
- Center for Nanoscience and Nanotechnology, Institute for Convergence Science and Technology, Sharif University of Technology, Tehran, Iran
| | - Hassan Niknejad
- Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Elnaz Tamjid
- Department of Nanobiotechnology, Faculty of Biological Sciences, Tarbiat Modares University, Tehran, Iran
| | - Abdolreza Simchi
- Center for Nanoscience and Nanotechnology, Institute for Convergence Science and Technology, Sharif University of Technology, Tehran, Iran
- Department of Materials Science and Engineering, Sharif University of Technology, Tehran, Iran
- Center for Bioscience and Technology, Institute for Convergence Science and Technology, Sharif University of Technology, Tehran, Iran
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Song S, Wu S, Meiduo D, Chen P, Li H, He H. Nano-biomaterial Fibrinogen/P(LLA-CL) for prevention of intrauterine adhesion and restoration of fertility. J Biomed Mater Res A 2024; 112:167-179. [PMID: 37724479 DOI: 10.1002/jbm.a.37604] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 06/14/2023] [Accepted: 08/22/2023] [Indexed: 09/20/2023]
Abstract
Endometrial damage resulting from surgical procedures is a significant cause of intrauterine adhesion, thin endometrium, and subsequent miscarriage and infertility. Unfortunately, there is currently no effective clinical solution to promote endometrial regeneration after severe injury. In this study, we combined fibrinogen (Fg) and P(LLA-CL) by electrostatic spinning to form a stable nano-biomaterial Fg/P(LLA-CL), which can promote endometrial regeneration. After inducing physical injury to rat endometrium, we found that Fg/P(LLA-CL) membranes placed in the uterine cavities increased endometrial thickness and the number of glands after injury, while reducing the area of endometrial fibrosis. In addition, Fg/P(LLA-CL) increased neovascularization and decreased COL1A1 deposition. The expression of TGF-β1, a cytokine that promotes fibrosis, was down-regulated in the early stage of injury. Finally, fertility assays confirmed that Fg/P(LLA-CL) improved the pregnancy rate in rats with endometrial injury, and its safety was verified by blood tests and pathological examination of heart, liver, spleen, lung, and kidney. Therefore, Fg/P(LLA-CL) shows great potential as a safe and nontoxic biomaterial for endometrial regeneration, ultimately improving pregnancy outcomes in patients with intrauterine adhesion.
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Affiliation(s)
- Sirui Song
- Department of Obstetrics and Gynecology, Tongji Hospital of Tongji University, Tongji University School of Medicine, Shanghai, China
| | - Siyu Wu
- Department of Obstetrics and Gynecology, Tongji Hospital of Tongji University, Tongji University School of Medicine, Shanghai, China
| | - Danzeng Meiduo
- Department of Obstetrics and Gynecology, Tongji Hospital of Tongji University, Tongji University School of Medicine, Shanghai, China
| | - Ping Chen
- School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - Huaifang Li
- Department of Obstetrics and Gynecology, Tongji Hospital of Tongji University, Tongji University School of Medicine, Shanghai, China
| | - Hongbing He
- Shanghai Pine & Power Biotech Co. Ltd, Shanghai, China
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Karakus S, Dogan HO. Maternal serum amino acid levels as predictors of premature rupture of membranes: A comprehensive analysis. Placenta 2024; 145:92-99. [PMID: 38113635 DOI: 10.1016/j.placenta.2023.12.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Revised: 11/29/2023] [Accepted: 12/09/2023] [Indexed: 12/21/2023]
Abstract
INTRODUCTION The aim of this study is to investigate the association between altered maternal serum amino acids (AAs) levels and premature rupture of membranes (pPROM) in pregnant women. METHODS We conducted a case-control study involving 60 pregnant women diagnosed with pPROM and 60 healthy pregnant women as controls. Amino acid levels were quantified using high-performance liquid chromatography. Receiver operating characteristic (ROC) curve analysis was performed to determine the predictive capability of specific AAs for pPROM. RESULTS Our findings revealed that lysine, glycine, and glutamic acid levels were significantly elevated in the pPROM group compared with the control group. Lysine, with a threshold value exceeding 137.90 μmol/L, exhibited the highest predictive accuracy, with an area under the curve (AUC) of 0.796 (p < 0.001), sensitivity of 66.7 %, and specificity of 80.0 %. Glycine, with a cut-off value of >242.48 μmol/L, had an AUC of 0.789 (p < 0.001), sensitivity of 83.3 %, and specificity of 65.0 %. Glutamic acid, at a threshold of 111.40 μmol/L, demonstrated an AUC of 0.787 (p < 0.001), sensitivity of 88.3 %, and specificity of 65.0 %. These AAs could effectively predict the occurrence of pPROM. CONCLUSION Elevated blood levels of lysine, glycine, and glutamic acid were found to be associated with pPROM. These AAs serve as potential predictive biomarkers for pPROM, with lysine showing the highest AUC and sensitivity. Identifying such biomarkers may contribute to the development of non-invasive diagnostic tools for pPROM risk assessment, enabling timely interventions and improved maternal and fetal outcomes.
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Affiliation(s)
- Savas Karakus
- Department of Obstetrics and Gynecology, Faculty of Medicine, Cumhuriyet University, Sivas, Turkey.
| | - Halef Okan Dogan
- Department of Biochemistry, Faculty of Medicine, Cumhuriyet University School of Medicine, 58140, Sivas, Turkey.
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Laleh M, Tahernejad M, Bonakdar S, Asefnejad A, Golkar M, Kazemi-Lomedasht F, Habibi-Anbouhi M. Positive effect of acellular amniotic membrane dressing with immobilized growth factors in skin wound healing. J Biomed Mater Res A 2023; 111:1216-1227. [PMID: 36752269 DOI: 10.1002/jbm.a.37509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 01/18/2023] [Accepted: 01/24/2023] [Indexed: 02/09/2023]
Abstract
The human amniotic membrane dressing has been shown to accelerate the wound healing process in the clinic. In this study, heparin was conjugated to a human Acellular Amniotic Membrane (hAAM) to provide affinity binding sites for immobilizing growth factors. To study the acceleration of the wound healing process, we bound epidermal growth factor and fibroblast growth factor 1 to heparinized hAAMs (GF-Hep-hAAMs). The heparinized hAAMs (Hep-hAAMs) were characterized by toluidine blue staining and infrared spectroscopy. The quality control of hAAM was performed by hematoxylin staining, swelling capacity test and biomechanical evaluation. The cytotoxicity, adhesion, and migration in vitro assays of GF-Hep-hAAMs on L-929 fibroblast cells were also studied by MTT assay, scanning electron microscopy, and scratch assay, respectively. Finally, in vivo skin wound healing study was performed to investigate the wound closure rate, re-epithelization, collagen deposition, and formation of new blood vessels. The results showed that GF-Hep-hAAMs enhance the rate of wound closure and epidermal regeneration in BALB/c mice. In conclusion, GF-Hep-hAAMs could accelerate the wound healing process, significantly in the first week.
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Affiliation(s)
- Mahsa Laleh
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
- Faculty of Medical Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Mahrokh Tahernejad
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
- Faculty of Medical Sciences and Technologies, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Shahin Bonakdar
- National Cell Bank of Iran, Pasteur Institute of Iran, Tehran, Iran
| | - Azadeh Asefnejad
- Department of Biomedical Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Majid Golkar
- Molecular Parasitology Laboratory, Parasitology Department, Pasteur Institute of Iran, Tehran, Iran
| | - Fatemeh Kazemi-Lomedasht
- Biotechnology Research Center, Venom and Biotherapeutics Molecules Lab, Pasteur Institute of Iran, Tehran, Iran
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Otulakowski Ł, Klama-Baryła A, Celny A, Kasprów M, Hercog A, Godzierz M, Sitkowska A, Kadłubowski S, Jaworska M, Chmielik E, Trzebicka B, Utrata-Wesołek A. Laminar Biomaterial Composite of PVA Cryogel with Amnion as Potential Wound Dressing. Polymers (Basel) 2023; 15:2955. [PMID: 37447600 DOI: 10.3390/polym15132955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/30/2023] [Accepted: 07/02/2023] [Indexed: 07/15/2023] Open
Abstract
Gel dressings, composed of polymers both natural and synthetic, are successfully used in the treatment of burn wounds. They protect the burn wound site against adverse external factors, ensure an adequate level of tissue hydration, have soothing and pain-relieving properties, and also support the healing process and reduce the risk of pathological scars. Another promising material that can be used in the wound-healing process is an amnion membrane. Due to its valuable properties such as protecting the body against bacterial infections and permeability to nutrition, it has found usage in different brands of medicine. In this work, we have combined the beneficial properties of hydrogels and amnion in order to make the laminar dressing that may serve for wound healing. For that purpose, the physically crosslinked cryogel of poly(vinyl alcohol) (PVA) was covered with an amnion membrane. Subsequently, gamma irradiation was performed, leading to the simultaneous internal crosslinking of the hydrogel, its permanent bonding with the amnion, and dressing sterilization. The physicochemical properties of the dressing including gel fraction, swelling, and hardness were studied. Biological tests such as the MTT assay, antimicrobial activity, and histopathological examination confirmed that the obtained material constituted a promising candidate for further, more in-depth studies aiming at wound dressing application.
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Affiliation(s)
- Łukasz Otulakowski
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Agnieszka Klama-Baryła
- Dr. Stanislaw Sakiel Center for Burn Treatment, 2 Jana Pawla II St., 41-100 Siemianowice Śląskie, Poland
| | - Anna Celny
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Maciej Kasprów
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Anna Hercog
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Marcin Godzierz
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Anna Sitkowska
- Dr. Stanislaw Sakiel Center for Burn Treatment, 2 Jana Pawla II St., 41-100 Siemianowice Śląskie, Poland
| | - Sławomir Kadłubowski
- Institute of Applied Radiation Chemistry, Chemistry Faculty, Lodz University of Technology, Wróblewskiego 15, 90-924 Łódź, Poland
| | - Magdalena Jaworska
- Tumor Pathology Department, Maria Skłodowska-Curie National Research Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102 Gliwice, Poland
| | - Ewa Chmielik
- Tumor Pathology Department, Maria Skłodowska-Curie National Research Institute of Oncology Gliwice Branch, Wybrzeże Armii Krajowej 15, 44-102 Gliwice, Poland
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
| | - Alicja Utrata-Wesołek
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, M. Curie-Skłodowskiej 34, 41-819 Zabrze, Poland
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Gadelha AIBB, de Oliveira MF, de Sousa ACFC, Diniz JARA, Lopes IRG, Fernandes BCC, Pereira AF, de Moura CEB. Extraembryonic membrane morphology in greater rheas ( Rhea americana americana Linnaeus, 1758). ZOOMORPHOLOGY 2023; 142:1-16. [PMID: 37360222 PMCID: PMC10027282 DOI: 10.1007/s00435-023-00602-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 01/16/2023] [Accepted: 02/27/2023] [Indexed: 03/29/2023]
Abstract
The greater rhea, Rhea americana, is a wild ratite of high scientific importance and significant and zootechnical value, especially considering the current development state of Brazilian poultry production, where research aimed at increasing the productivity of these animals has become extremely relevant. Studies concerning fetal attachments and embryonic development are paramount, as they can provide essential information concerning reproductive and nutritional animal management. However, a lack of information on greater rhea fetal morphology is noted. Therefore, the aim of the present study was to establish a standard model for fetal attachments in this species. Greater rhea eggs were incubated from 0 to 36 days, and macroscopic and microscopic embryonic attachment characterizations were performed. Histologically, all embryonic annexes exhibit germ layers, namely the ectoderm (outer layer), mesoderm (middle layer) and endoderm (inner layer). The findings indicate that greater rhea development patterns are similar to other birds.
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Affiliation(s)
- Ana Indira Bezerra Barros Gadelha
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Masters Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | - Moacir Franco de Oliveira
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | | | - João Augusto Rodrigues Alves Diniz
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Doctoral Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | - Igor Renno Guimarães Lopes
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Department of Animal Sciences, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
- Doctoral Program in Development and Environment, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
| | | | - Alexsandra Fernandes Pereira
- Postgraduate Program in Animal Science, Federal Rural University of Semi-Árido, Rio Grande do Norte Mossoró, Brazil
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11
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Maljaars LP, Bendaoud S, Kastelein AW, Guler Z, Hooijmans CR, Roovers JPWR. Application of amniotic membranes in reconstructive surgery of internal organs-A systematic review and meta-analysis. J Tissue Eng Regen Med 2022; 16:1069-1090. [PMID: 36333859 PMCID: PMC10099938 DOI: 10.1002/term.3357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Accepted: 10/20/2022] [Indexed: 11/08/2022]
Abstract
Amniotic membrane (AM) has great potential as a scaffold for tissue regeneration in reconstructive surgery. To date, no systematic review of the literature has been performed for the applications of AM in wound closure of internal organs. Therefore, in this systematic review and meta-analysis, we summarize the literature on the safety and efficacy of AM for the closure of internal organs. A systematic search was performed in MEDLINE-PubMed database and OVID Embase to retrieve human and controlled animal studies on wound closure of internal organs. The Cochrane Risk of Bias tool for randomized clinical trials and the SYRCLE risk of bias tool for animal studies were used. Meta-analyses (MAs) were conducted for controlled animal studies to assess efficacy of closure, mortality and complications in subjects who underwent surgical wound closure in internal organs with the application of AM. Sixty references containing 26 human experiments and 36 animal experiments were included. The MAs of the controlled animal studies showed comparable results with regard to closure, mortality and complications, and suggested improved mechanical strength and lower inflammation scores after AM application when compared to standard surgical closure techniques. This systematic review and MAs demonstrate that the application of AM to promote wound healing of internal organs appears to be safe, efficacious, and feasible.
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Affiliation(s)
- Lennart P Maljaars
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Sohayla Bendaoud
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Arnoud W Kastelein
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Zeliha Guler
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
| | - Carlijn R Hooijmans
- Department of Anesthesiology, Pain and Palliative Medicine, Radboud University Medical Center, Nijmegen, The Netherlands
| | - Jan-Paul W R Roovers
- Department of Obstetrics and Gynecology, Amsterdam University Medical Centers, location University of Amsterdam, Amsterdam, The Netherlands.,Amsterdam Reproduction and Development research institute, Amsterdam, The Netherlands
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12
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Haghshenas M, Tavana S, Zand E, Montazeri L, Fathi R. Mouse ovarian follicle growth in an amniotic membrane-based hydrogel. J Biomater Appl 2022; 37:563-574. [PMID: 35451867 DOI: 10.1177/08853282221094193] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Three-dimensional cultures of follicles on ECM-based scaffolds can be an approach for women who become infertile after cancer treatments. Human amniotic membrane (HAM) is extensively employed in tissue engineering because of its unique properties. We cultured mouse pre-antral follicles in a hydrogel derived from decellularized amniotic membrane (DAM) combined with alginate (ALG) to improve ovarian follicle culture. HAM was decellularized. Quantitative (nuclear contents, collagen, glycosaminoglycan [GAG]) and qualitative (DAPI, H&E, Masson's trichrome, Alcian blue, scanning electron microscopy assessments were performed. Then, we created an amniotic membrane-based hydrogel (AMBH) and conducted AMBH characterization assays (rheology, MTS, degradation rate). Isolated mouse pre-antral follicles were cultured in 15 mg/mL AMBH (AMBH15), 30 mg/mL AMBH (AMBH30), or 45 mg/mL AMBH (AMBH45). ALG hydrogel was the control group. Follicular diameters, estradiol hormone secretion rate, follicular morphology, and the follicle antral and degeneration rate were examined. Quantitative and qualitative assays indicated successful decellularization. AMBH characterization assays showed that the ALG hydrogel had more appropriate gelation and slower degradation than AMBH. There was a statistically higher antral follicle formation rate in the AMBH45 group (p < .05) compared to the AMBH30 and AMBH15 groups and less (p < .05) degenerated follicles. There was no significant difference with the ALG group. Diameter and estradiol hormone secretion in the AMBH45 group were not significantly higher than the ALG group. Although decellularization was confirmed and the viscoelastic parameters of AMBH support follicle culture, there was no significant effect on ovarian follicle maturation compared to the ALG control group.
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Affiliation(s)
- Mohammad Haghshenas
- 438298Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran.,48499Department of Developmental Biology, University of Science and Culture, Tehran, Iran
| | - Somayeh Tavana
- 438298Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Elnaz Zand
- 438298Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
| | - Leila Montazeri
- Department of Cell Engineering, Cell Science Research Center, Royan Institute for Stem Cell Biology and Technology, ACECR, Tehran, Iran
| | - Rouhollah Fathi
- 438298Department of Embryology, Reproductive Biomedicine Research Center, Royan Institute for Reproductive Biomedicine, ACECR, Tehran, Iran
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13
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Placental Tissues as Biomaterials in Regenerative Medicine. BIOMED RESEARCH INTERNATIONAL 2022; 2022:6751456. [PMID: 35496035 PMCID: PMC9050314 DOI: 10.1155/2022/6751456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 03/19/2022] [Indexed: 12/02/2022]
Abstract
Placental tissues encompass all the tissues which support fetal development, including the placenta, placental membrane, umbilical cord, and amniotic fluid. Since the 1990s there has been renewed interest in the use of these tissues as a raw material for regenerative medicine applications. Placental tissues have been extensively studied for their potential contribution to tissue repair applications. Studies have attributed their efficacy in augmenting the healing process to the extracellular matrix scaffolds rich in collagens, glycosaminoglycans, and proteoglycans, as well as the presence of cytokines within the tissues that have been shown to stimulate re-epithelialization, promote angiogenesis, and aid in the reduction of inflammation and scarring. The compositions and properties of all birth tissues give them the potential to be valuable biomaterials for the development of new regenerative therapies. Herein, the development and compositions of each of these tissues are reviewed, with focus on the structural and signaling components that are relevant to medical applications. This review also explores current configurations and recent innovations in the use of placental tissues as biomaterials in regenerative medicine.
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14
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Goel R, Ojha H, Choudhary V, Sharma D, Nair A, Sharma N, Pathak M, Shivkumar H, Sharma R, Kaushik V, Singhal R. Medical management of ionizing radiation-induced skin injury. RADIATION PROTECTION AND ENVIRONMENT 2022. [DOI: 10.4103/rpe.rpe_4_21] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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15
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Ma J, Zhan H, Li W, Zhang L, Yun F, Wu R, Lin J, Li Y. Recent trends in therapeutic strategies for repairing endometrial tissue in intrauterine adhesion. Biomater Res 2021; 25:40. [PMID: 34819167 PMCID: PMC8611984 DOI: 10.1186/s40824-021-00242-6] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Accepted: 10/31/2021] [Indexed: 12/25/2022] Open
Abstract
Intrauterine adhesion (IUA) is a common gynaecological disease that develops from infection or trauma. IUA disease may seriously affect the physical and mental health of women of childbearing age, which may lead to symptoms such as hypomenorrhea or infertility. Presently, hysteroscopic transcervical resection of adhesion (TCRA) is the principal therapy for IUAs, although its function in preventing the recurrence of adhesion and preserving fertility is limited. Pharmaceuticals such as hormones and vasoactive agents and the placement of nondegradable stents are the most common postoperative adjuvant therapy methods. However, the repair of injured endometrium is relatively restricted due to the different anatomical structures of the endometrium. Recently, the treatment outcome of IUAs has improved with the advancement of hysteroscopic techniques. In particular, the application of bioactive scaffolds combined with tissue engineering technology has proven to have high therapeutic potential or endometrial repair in IUA treatment. Herein, this review has summarized past therapeutic strategies, including postoperative adjuvant therapy, cell or therapeutic molecular delivery therapy methods and bioactive scaffold-based tissue engineering methods. Therefore, this review presented the recent therapeutic strategies for repairing endometrium treatment and pointed out the issues of clinical concern to provide alternative methods for the management of IUAs.
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Affiliation(s)
- Junyan Ma
- Zhejiang Provincial Key Laboratory for Precision Diagnosis & Treatment of Major Gynecological Diseases, Hangzhou, 310006, Zhejiang Province, China
| | - Hong Zhan
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Wen Li
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Liqi Zhang
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Feng Yun
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China
| | - Ruijin Wu
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China.
| | - Jun Lin
- Department of Gynecology and Obstetrics, Women' s Hospital, Zhejiang University School of Medicine, Hangzhou, 310006, Zhejiang Province, China.
| | - Yangyang Li
- Zhejiang Provincial Key Laboratory for Precision Diagnosis & Treatment of Major Gynecological Diseases, Hangzhou, 310006, Zhejiang Province, China.
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16
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Characterization of Cryopreserved Canine Amniotic Membrane. MEMBRANES 2021; 11:membranes11110824. [PMID: 34832052 PMCID: PMC8624976 DOI: 10.3390/membranes11110824] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 10/23/2021] [Accepted: 10/25/2021] [Indexed: 12/12/2022]
Abstract
Amniotic membrane is an effective corneal reconstruction material in veterinary surgery. Cryopreserved amniotic membrane is widely used in practice. Properties of cryopreserved canine amniotic membranes are currently not well studied. This study aimed to compare three properties between canine amniotic membranes cryopreserved for 7 days and 30 days, including tensile strength, transparency, and cell viability. After their respective cryopreservation time, stress-strain curves of the cryopreserved membranes' tensile strength were assessed using a universal testing machine. Both groups produced J-shaped stress-strain curves with statistically comparable parameters, including maximum stress, strain, and Young's modulus. The percentage of cell viability was observed by trypan blue staining under a light microscope. Membrane transparency was tested with a spectrophotometer. Transparency tests showed high levels of light transmission and low haze, with no statistical difference between groups. Cell viability was statistically lower in the 30-day cryopreserved group. Tensile strength and transparency of cryopreserved CAM were not significantly impeded for up to 30 days. For CAM to be used as an alternative corneal transplant material in veterinary and regenerative medicine, further research on cell biology, biomechanical properties of the membrane, and cell viability should be conducted.
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17
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Fernández Jiménez-Ortiz H, Sampedro Yañez R, Villarrubia Torcal B, Maroto Rodriguez B, Nava Pérez S, Monja N. Treatment and prevention of ocular motility restrictions with amniotic membrane transplantation. Strabismus 2021; 29:228-242. [PMID: 34686115 DOI: 10.1080/09273972.2021.1987925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
We intend to investigate the indications, complications, and final results of amniotic membrane (AM) transplantation in ocular motility restrictions. Surgeons have tried to prevent restrictive adhesions between the extraocular muscles and surrounding tissues because they cause unpredictable results. AM transplantation wrapping extraocular musculature has been proposed as a technique with good results for this purpose. A search was carried out in Medline, Embase, Cochrane Library and Clinicaltrial, Lilac and Ibecs databases, using the indexed terms" amnion", "strabismus," "strabismus-subheading-surgery" and "ocular motility disorders." The only exclusion criteria were studies conducted in non-humans or studies with insufficient data on eye motility. No study was discarded for analysis because of language, age or methodology. This review includes 165 patients (223 eyes), with a mean follow-up of 11.49 months. The mean age was 21 years old, 47% were males and 57% were children. 14 studies conducted in humans were eligible: 4 single case, 8 case series, 1 cohort study and 1 randomized clinical trial. In the vast majority of these papers, use of AM transplantation to treat (12 out of 14 papers) or either to prevent (2 out of 14 papers) motility restrictions or restrictive strabismus secondary to muscular adhesions. All the studies except one presents very favorable results improving postsurgical eye motility. The cryopreservation method was more widely used, presenting a good safety profile with few adverse effects in the short and medium term. Significant improvement was reported in most patients after the use of amniotic membrane transplantation to treat or prevent ocular motility limitations. Very few complications or adverse effects were documented.
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18
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Visual Acuity and Number of Amniotic Membrane Layers as Indicators of Efficacy in Amniotic Membrane Transplantation for Corneal Ulcers: A Multicenter Study. J Clin Med 2021; 10:jcm10153234. [PMID: 34362018 PMCID: PMC8348886 DOI: 10.3390/jcm10153234] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Revised: 07/06/2021] [Accepted: 07/13/2021] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND To evaluate new indicators in the efficacy of amniotic membrane transplantation (AMT) for non-healing corneal ulcers (NHCUs). METHODS Retrospective, multicenter study. In total, 223 AMTs for NHCU in 191 patients were assessed. The main outcomes studied were the success rate of AMT (complete re-epithelization), postoperative visual acuity (VA) gain, and number of AM layers transplanted. RESULTS The overall AMT success rate was 74.4%. In 92% of our patients VA stability or improvement. Postoperative VA was significantly higher than preoperative VA in the entire cohort (p < 0.001) and in all etiological groups of ulcers (post-bacterial, p ≤ 0.001; post-herpetic, p ≤ 0.0038; neurotrophic ulcers, p ≤ 0.014; non-rheumatic peripheral, p ≤ 0.001; and ulcers secondary to lagophthalmos and eyelid malposition or trauma, p ≤ 0.004). Most participants (56.5%) presented a preoperative VA equal to or less than counting fingers (≤0.01). Of these, 13.5% reached a postoperative VA equal to or better than legal blindness (≥0.05) after AMT. A higher success rate was observed in the monolayer than in the multilayer AMT (79.5% and 64.9%, respectively; p = 0.018). No statistically significant values were found between the number of layers transplanted and VA gain (p = 0.509). CONCLUSION AMT is not only beneficial in achieving complete re-epithelialization in NHCUs but also in improving postoperative VA; these improvements are independent of etiologies of ulcers. Furthermore, the use of monolayer AMT seems to be a more appropriate option than multilayer AMT for NHCU since the multilayer AMT did not present better outcomes (success rate and VA gain) compared to monolayer AMT in the different types of ulcers studied.
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19
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Watson CM, Cox CL. Elevation, oxygen, and the origins of viviparity. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2021; 336:457-469. [PMID: 34254734 DOI: 10.1002/jez.b.23072] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 06/03/2021] [Accepted: 06/28/2021] [Indexed: 12/19/2022]
Abstract
Research focused on understanding the evolutionary factors that shape parity mode evolution among vertebrates have long focused on squamate reptiles (snakes and lizards), which contain all but one of the evolutionary transitions from oviparity to viviparity among extant amniotes. While most hypotheses have focused on the role of cool temperatures in favoring viviparity in thermoregulating snakes and lizards, there is a growing appreciation in the biogeographic literature for the importance of lower oxygen concentrations at high elevations for the evolution of parity mode. However, the physiological mechanisms underlying how hypoxia might reduce fitness, and how viviparity can alleviate this fitness decrement, has not been systematically evaluated. We qualitatively evaluated previous research on reproductive and developmental physiology, and found that (1) hypoxia can negatively affect fitness of squamate embryos, (2) oxygen availability in the circulatory system of adult lizards can be similar or greater than an egg, and (3) gravid females can possess adaptive phenotypic plasticity in response to hypoxia. These findings suggest that the impact of hypoxia on the development and physiology of oviparous and viviparous squamates would be a fruitful area of research for understanding the evolution of viviparity. To that end, we propose an integrative research program for studying hypoxia and the evolution of viviparity in squamates.
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Affiliation(s)
- Charles M Watson
- Department of Life Sciences, Texas A&M University San Antonio, San Antonio, Texas, USA
| | - Christian L Cox
- Department of Biological Sciences and Institute of Environment, Florida International University, Miami, Florida, USA
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20
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Ambrósio CE, Orlandin JR, Oliveira VC, Motta LCB, Pinto PAF, Pereira VM, Padoveze LR, Karam RG, Pinheiro ADO. Potential application of aminiotic stem cells in veterinary medicine. Anim Reprod 2020; 16:24-30. [PMID: 33299475 PMCID: PMC7720931 DOI: 10.21451/1984-3143-ar2018-00124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Accepted: 12/05/2018] [Indexed: 12/16/2022] Open
Abstract
In regenerative medicine stem cell biology has become one of the most interesting and more often studied subject. The amniotic membrane is the innermost layer of the fetal membranes and is considered a potential tool to treat many pathologies. It is used because it can be collected from discarded fetal material and is a rich source of stem cells with high proliferation and plasticity ratio capable of proliferating and differentiate in vitro. We propose to elucidate the characteristics and potencial clinical application of cells derived of amniotic membrane in veterinary medicine.
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Affiliation(s)
- Carlos Eduardo Ambrósio
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Jéssica Rodrigues Orlandin
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Vanessa Cristina Oliveira
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Lina Castelo Branco Motta
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Priscilla Avelino Ferreira Pinto
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Vitória Mattos Pereira
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Letícia Ribeiro Padoveze
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Rafael Garcia Karam
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
| | - Alessandra de Oliveira Pinheiro
- Department of Veterinary Medicine, Faculty of Animal Science and Food Engineering, University of São Paulo, Pirassununga, São Paulo, Brazil.
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Characterization of Endocannabinoid System and Interleukin Profiles in Ovine AEC: Cannabinoid Receptors Type-1 and Type-2 as Key Effectors of Pro-Inflammatory Response. Cells 2020; 9:cells9041008. [PMID: 32325674 PMCID: PMC7226065 DOI: 10.3390/cells9041008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 04/16/2020] [Accepted: 04/16/2020] [Indexed: 12/23/2022] Open
Abstract
Amniotic epithelial cells (AEC) have been proposed as promising clinical candidates for regenerative medicine therapies due to their immunomodulatory capacity. In this context, the endocannabinoid system (ECS) has been identified as mediating the immune-stem cell dialogue, even if no information on AEC is available to date. Therefore, this study was designed to assess whether ECS is involved in tuning the constitutive and lipopolysaccharide (LPS)-induced ovine AEC anti-inflammatory and pro-inflammatory interleukin (IL-10, IL-4, and IL-12) profiles. Firstly, interleukins and ECS expressions were studied at different stages of gestation. Then, the role of cannabinoid receptors 1 and 2 (CB1 and CB2) on interleukin expression and release was investigated in middle stage AEC using selective agonists and antagonists. AEC displayed a degradative more than a synthetic endocannabinoid metabolism during the early and middle stages of gestation. At the middle stage, cannabinoid receptors mediated the balance between pro-inflammatory (IL-12) and anti-inflammatory (IL-4 and IL-10) interleukins. The activation of both receptors mediated an overall pro-inflammatory shift-CB1 reduced the anti-inflammatory and CB2 increased the pro-inflammatory interleukin release, particularly after LPS stimulation. Altogether, these data pave the way for the comprehension of AEC mechanisms tuning immune-modulation, crucial for the development of new AEC-based therapy protocols.
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22
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Liu F, Zhou H, Du W, Huang X, Zheng X, Zhang C, Hu H, Wang J, Quan R. Hair follicle stem cells combined with human allogeneic acellular amniotic membrane for repair of full thickness skin defects in nude mice. J Tissue Eng Regen Med 2020; 14:723-735. [PMID: 32220061 DOI: 10.1002/term.3035] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 03/04/2020] [Accepted: 03/12/2020] [Indexed: 11/05/2022]
Abstract
Repair of large skin defects caused by burns, trauma, or tumor operations is a clinical challenge. Hair follicle stem cells (HFSCs) are involved in epithelialization of wounds, formation of new hair follicles and promote vascularization in the newly formed skin, and human acellular amniotic membrane (hAAM) is a promising scaffold for skin substitute. Here, we investigated the ability of rat HFSCs (rHFSCs) combined with an hAAM to repair full thickness skin defects in nude mice. The effect of the rHFSC-hAAM composite on the repair of skin defects in nude mice was assessed by hematoxylin and eosin staining, immunohistochemistry, and EdU-labeled cell tracking. Isolated and cultured rHFSCs had strong cloning and proliferation potentials. Immunofluorescence staining and flow cytometry assays showed that rHFSCs expressed high levels of integrin α6, CK15, p63, and Sox9. Cells cultured in hAAM showed flaky and cluster-like morphology and were able to adhere and grow effectively. After transplantation, the rHFSC-hAAM composite promoted wound healing in nude mice. Moreover, cells in the rHFSC-hAAM composite were directly involved in hair follicle formation and angiogenesis of tissue around the hair follicle. These results provide an experimental and theoretical basis for the clinical application of HFSCs in repair of human skin defects and a new approach for skin tissue engineering.
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Affiliation(s)
- Fei Liu
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Huateng Zhou
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Weibin Du
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xiaolong Huang
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Xuan Zheng
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Cui Zhang
- Institute Cell and Development, College of Life Science, Zhejiang University, Hangzhou, China
| | - Huahui Hu
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
| | - Jinfu Wang
- Institute Cell and Development, College of Life Science, Zhejiang University, Hangzhou, China
| | - Renfu Quan
- Department of Orthopedic Surgery, Affiliated Jiangnan Hospital, Zhejiang Chinese Medical University, Hangzhou, China
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Villamil Ballesteros AC, Segura Puello HR, Lopez-Garcia JA, Bernal-Ballen A, Nieto Mosquera DL, Muñoz Forero DM, Segura Charry JS, Neira Bejarano YA. Bovine Decellularized Amniotic Membrane: Extracellular Matrix as Scaffold for Mammalian Skin. Polymers (Basel) 2020; 12:polym12030590. [PMID: 32151022 PMCID: PMC7182835 DOI: 10.3390/polym12030590] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2019] [Revised: 11/16/2019] [Accepted: 11/23/2019] [Indexed: 12/23/2022] Open
Abstract
Decellularized membranes (DM) were obtained from bovine amniotic membranes (BAM) using four different decellularization protocols, based on physical, chemical, and mechanical treatment. The new material was used as a biological scaffold for in vitro skin cell culture. The DM were characterized using hematoxylin-eosin assay, scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR-ATR), and differential scanning calorimetry (DSC). The in vitro cytotoxicity of DM was evaluated using MTT. The efficacy of decellularization process was assessed through DNA quantification and electrophoresis. All the used protocols showed a high effectiveness in terms of elimination of native cells, confirmed by DNA extraction and quantification, electrophoresis, and SEM, although protocol IV removes the cellular contents and preserve the native extracellular matrix (ECM) architecture which it can be considered as the most effective in terms of decellularization. FTIR-ATR and DSC on the other hand, revealed the effects of decellularization on the biochemical composition of the matrices. There was no cytotoxicity and the biological matrices obtained were a source of collagen for recellularization. The matrices of protocols I, II, and III were degraded at day 21 of cell culture, forming a gel. The biocompatibility in vitro was demonstrated; hence these matrices may be deemed as potential scaffold for epithelial tissue regeneration.
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Affiliation(s)
- Andrea Catalina Villamil Ballesteros
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
- Correspondence:
| | - Hugo Ramiro Segura Puello
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
| | - Jorge Andres Lopez-Garcia
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlín, Trida Tomase Bati 5678, 76001 Zlín, Czech Republic;
| | - Andres Bernal-Ballen
- Grupo de Investigación en Ingeniería Biomédica, Vicerrectoría de Investigaciones, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia;
| | - Diana Lorena Nieto Mosquera
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
| | - Diana Milena Muñoz Forero
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
| | - Juan Sebastián Segura Charry
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
| | - Yuli Alexandra Neira Bejarano
- Laboratorio de Investigaciones en Salud, Universidad Manuela Beltrán, Avenida Circunvalar No. 60-00, Bogotá 110231, Colombia; (H.R.S.P.); (D.L.N.M.); (D.M.M.F.); (J.S.S.C.); (Y.A.N.B.)
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Molecular characterization of bovine amniotic fluid derived stem cells with an underlying focus on their comparative neuronal potential at different passages. Ann Anat 2019; 228:151452. [PMID: 31778790 DOI: 10.1016/j.aanat.2019.151452] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Revised: 10/17/2019] [Accepted: 11/13/2019] [Indexed: 11/21/2022]
Abstract
BACKGROUND The excellence in the field of stem cell therapy demands alternative and more convenient stem cells for potential applications. Researchers have opted for least invasive and broadly multipotent cells with minimum ethical concerns. Bovine amniotic fluid derived mesenchymal stem cells (BAF-MSCs) due to their ease of collection and owing similar gestational length to that of human could be presumed as an attractive large animal model for biomedical and biotechnology research. METHODS Bovine amniotic fluid derived stem cells were isolated from abattoir based samples and characterized for epithelial, neuronal, mesenchymal and pluripotent markers by qPCR and immunofluorescence studies at P1, P3, P5 and P7 alongside population doubling time, growth curve and multilineage differentiation studies. RESULTS The cells were explored for unique expression of Sox2, which was observed to be up regulated with increase in passage number and Nestin was found to be downregulated during further passaging of mesenchymal cells in this study. The cells also co-expressed Oct ¾ at initial passages which diminished within further passages. Evidence regarding diversity and heterogeneity in different cell population in amniotic fluid was recorded by positive expression of epithelial cell markers like pan Cytokeratin and p63 during early passages. The study suggested that cells with higher expression of Sox2 generated comparatively larger neurospheres with comparative strong expression of Sox2 and Nestin by immunofluorescence staining and qPCR analysis. Besides BAF-MSCs derived neurospheres were also shown to express pro-neuronal markers like ß-III Tubulin, GAP43 and ASCL-1. CONCLUSIONS This study explores and characterizes BAF-MSCs for their multipotent and neurogenic potentials and their use for clinical applications, though more detailed studies are needed to determine the exact pathways linked with neurogenic capacities of these cells and their morphological assessments at different gestational ages in bovines. The knowledge from the bovine model after detailed studies, proven safety and efficacy could also be used to understand substitutive strategies to investigate MSCs physiology at different trimesters and potential application of these cells for human and veterinary regenerative medicine provided the animal ethics are carefully monitored.
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Lacorzana J. Amniotic membrane, clinical applications and tissue engineering. Review of its ophthalmic use. ACTA ACUST UNITED AC 2019; 95:15-23. [PMID: 31784120 DOI: 10.1016/j.oftal.2019.09.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2019] [Revised: 09/06/2019] [Accepted: 09/16/2019] [Indexed: 10/25/2022]
Abstract
The use of amniotic membrane in ophthalmology has been increasing in recent years due to its multiple biological and tectonic properties, improvement in the process of obtaining, ease of use, and advancement in tissue engineering. The amniotic membrane has become one of the main adjuvant treatments, in ophthalmic surgery as well as in other medical-surgical specialties. The development of tissue engineering has allowed it to be used, not only in its classic form, but also by the use of drops and other presentations. The different steps prior to its use (preparation and conservation), the different surgical techniques, and their main clinical applications are described throughout the article.
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Affiliation(s)
- J Lacorzana
- Departamento de Oftalmología, Hospital Universitario Virgen de las Nieves, Granada, España; Escuela de Doctorado y Posgrado, Universidad de Granada, Granada, España; Master en Ingeniería Tisular, Universidad de Granada. Granada, España.
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Niu Y, Sun N, Li C, Lei Y, Huang Z, Wu J, Si C, Dai X, Liu C, Wei J, Liu L, Feng S, Kang Y, Si W, Wang H, Zhang E, Zhao L, Li Z, Luo X, Cui G, Peng G, Izpisúa Belmonte JC, Ji W, Tan T. Dissecting primate early post-implantation development using long-term in vitro embryo culture. Science 2019; 366:science.aaw5754. [DOI: 10.1126/science.aaw5754] [Citation(s) in RCA: 92] [Impact Index Per Article: 18.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Accepted: 10/16/2019] [Indexed: 12/12/2022]
Abstract
The transition from peri-implantation to gastrulation in mammals entails the specification and organization of the lineage progenitors into a body plan. Technical and ethical challenges have limited understanding of the cellular and molecular mechanisms that underlie this transition. We established a culture system that enabled the development of cynomolgus monkey embryos in vitro for up to 20 days. Cultured embryos underwent key primate developmental stages, including lineage segregation, bilaminar disc formation, amniotic and yolk sac cavitation, and primordial germ cell–like cell (PGCLC) differentiation. Single-cell RNA-sequencing analysis revealed development trajectories of primitive endoderm, trophectoderm, epiblast lineages, and PGCLCs. Analysis of single-cell chromatin accessibility identified transcription factors specifying each cell type. Our results reveal critical developmental events and complex molecular mechanisms underlying nonhuman primate embryogenesis in the early postimplantation period, with possible relevance to human development.
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Affiliation(s)
- Yuyu Niu
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Nianqin Sun
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Chang Li
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Ying Lei
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
- China National GeneBank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China
| | - Zhihao Huang
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
- China National GeneBank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China
| | - Jun Wu
- Department of Molecular Biology, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Hamon Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
- Gene Expression Laboratory, Salk Institute for Biological Studies, La Jolla, CA 92037, USA
| | - Chenyang Si
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Xi Dai
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
- China National GeneBank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China
| | - Chuanyu Liu
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
- China National GeneBank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China
| | - Jingkuan Wei
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Longqi Liu
- BGI-Shenzhen, Shenzhen, Guangdong 518083, China
- China National GeneBank, BGI-Shenzhen, Shenzhen, Guangdong 518120, China
| | - Su Feng
- State Key Laboratory of Cell Biology, CAS Center for Excellence in Molecular Cell Science, Shanghai Institute of Biochemistry and Cell Biology, Chinese Academy of Sciences (CAS), University of Chinese Academy of Sciences, Shanghai 200032, China
| | - Yu Kang
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Wei Si
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Hong Wang
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - E. Zhang
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Lu Zhao
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Ziwei Li
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
| | - Xi Luo
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, CAS, Guangzhou 510530, China
| | - Guizhong Cui
- Center of Cell Lineage and Atlas, Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), Guangzhou 510530, China
| | - Guangdun Peng
- CAS Key Laboratory of Regenerative Biology, Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, CAS, Guangzhou 510530, China
- Center of Cell Lineage and Atlas, Guangzhou Regenerative Medicine and Health Guangdong Laboratory (GRMH-GDL), Guangzhou 510530, China
| | | | - Weizhi Ji
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
- CAS Center for Excellence in Brain Science and Intelligence Technology, CAS, Shanghai 200032, China
| | - Tao Tan
- Yunnan Key Laboratory of Primate Biomedical Research, Institute of Primate Translational Medicine, Kunming University of Science and Technology, Kunming, Yunnan 650500, China
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Faramarzi M, Kaboodkhani R, Roosta S, Azarpira N, Shishegar M, Bahranifard H. Application of amniotic membrane for covering mastoid cavity in canal wall down mastoidectomy. Laryngoscope 2019; 129:1453-1457. [DOI: 10.1002/lary.27638] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/04/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Mohammad Faramarzi
- Otolaryngology Research Center, Department of OtolaryngologyShiraz University of Medical Sciences Shiraz Iran
| | - Reza Kaboodkhani
- Otolaryngology Research Center, Department of OtolaryngologyShiraz University of Medical Sciences Shiraz Iran
| | - Sareh Roosta
- Otolaryngology Research Center, Department of OtolaryngologyShiraz University of Medical Sciences Shiraz Iran
| | - Negar Azarpira
- Transplant Research CentreShiraz University of Medical Sciences Shiraz Iran
| | - Mahmood Shishegar
- Otolaryngology Research Center, Department of OtolaryngologyShiraz University of Medical Sciences Shiraz Iran
| | - Hajar Bahranifard
- Otolaryngology Research Center, Department of OtolaryngologyShiraz University of Medical Sciences Shiraz Iran
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Adamowicz J, Van Breda S, Tyloch D, Pokrywczynska M, Drewa T. Application of amniotic membrane in reconstructive urology; the promising biomaterial worth further investigation. Expert Opin Biol Ther 2018; 19:9-24. [PMID: 30521409 DOI: 10.1080/14712598.2019.1556255] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Introduction: In reconstructive urology, autologous tissues such as intestinal segments, skin, and oral mucosa are used. Due to their limitations, reconstructive urologists are waiting for a novel material, which would be suitable for urinary tract wall replacement. Human amniotic membrane (AM) is a naturally derived biomaterial with a capacity to support reepithelization and inhibit scar formation. AM has a potential to become a considerable asset for reconstructive urology, i.e., reconstruction of ureters, urinary bladder, and urethrae. Areas covered: This review aims to discuss the potential application of human AM in reconstructive urology. The environment for urinary tract healing is particularly unfavorable due to the presence of urine. Due to its fetal origin, the bioactivity of AM is orientated to induce intrinsic regeneration mechanisms and inhibit scarring. This review introduces the concept of applying human AM in reconstructive urology procedures to improve their outcomes and future tissue engineering based strategies. Expert opinion: Many fields of medicine that have accomplished translational research have proven the usefulness of AM in clinical practice. There is an urgent need for studies to be conducted on large animal models that might convincingly demonstrate the underestimated potential of AM to urologists around the world.
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Affiliation(s)
- Jan Adamowicz
- a Chair of Urology, Department of Regenerative Medicine, Collegium Medicum , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Shane Van Breda
- b Department of Biomedicine , University Hospital Basel , Basel , Switzerland
| | - Dominik Tyloch
- a Chair of Urology, Department of Regenerative Medicine, Collegium Medicum , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Marta Pokrywczynska
- a Chair of Urology, Department of Regenerative Medicine, Collegium Medicum , Nicolaus Copernicus University , Bydgoszcz , Poland
| | - Tomasz Drewa
- a Chair of Urology, Department of Regenerative Medicine, Collegium Medicum , Nicolaus Copernicus University , Bydgoszcz , Poland
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Krishna L, Dhamodaran K, Subramani M, Ponnulagu M, Jeyabalan N, Krishna Meka SR, Jayadev C, Shetty R, Chatterjee K, Khora SS, Das D. Protective Role of Decellularized Human Amniotic Membrane from Oxidative Stress-Induced Damage on Retinal Pigment Epithelial Cells. ACS Biomater Sci Eng 2018; 5:357-372. [DOI: 10.1021/acsbiomaterials.8b00769] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Lekshmi Krishna
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
- School of Bioscience and Technology, VIT University, Vellore, Tamil Nadu, India
| | - Kamesh Dhamodaran
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Murali Subramani
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Murugeswari Ponnulagu
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Nallathambi Jeyabalan
- Grow Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Sai Rama Krishna Meka
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | - Chaitra Jayadev
- Department of Vitreo-retinal Services, Narayana Nethralaya Eye Institute, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Institute, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore, Karnataka, India
| | | | - Debashish Das
- Stem Cell Research Lab, GROW Laboratories, Narayana Nethralaya Foundation, 258/A, Bommasandra Industrial Area, Bangalore, Karnataka, India
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Human-Derived Amniotic Membrane Is Associated With Decreased Postoperative Intraperitoneal Adhesions in a Rat Model. Dis Colon Rectum 2018. [PMID: 29521830 DOI: 10.1097/dcr.0000000000001037] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Complications from adhesions after intra-abdominal surgery accounts for ~6% of hospital admissions. Currently, hyaluronate/carboxymethylcellulose represents the main option to prevent postoperative adhesion formation. Human amniotic membrane contains inherent anti-inflammatory properties that mitigate adhesion formation. OBJECTIVE This study aimed to evaluate adhesion generation after surgical trauma with amniotic membranes compared with standard intraperitoneal adhesion barriers. DESIGN This study is a double-blinded, prospective evaluation. SETTING This study was conducted at an animal research facility. ANIMALS Forty male rats were studied. INTERVENTION Laparotomy was performed with peritoneal disruption to the cecum. Animals were randomly assigned to 1 of 5 groups: sham, control, saline, hyaluronic acid membrane, or amniotic membrane. Animals were euthanized at 14 days. MAIN OUTCOME MEASURES Independent gross and histological assessments of adhesions were analyzed between groups by using adhesion scoring and microscopy. Scoring was based on the percentage of the cecum involved (0-4), vascularity of adhesions (0-3), strength (0-3), inflammation (0-3), and fibrosis (0-3). Adhered tissue was harvested for polymerase chain reaction analysis for gene regulation activity. RESULTS All rats survived 14 days. Adhesions were observed in all animals. There were significantly fewer adhesions in the amniotic membrane group (2) versus hyaluronic acid (3) group (p = 0.01). The percentage of adhesion to the cecum was lower in the amniotic membrane group (29%) than in the hyaluronic acid group (47%, p = 0.04). Histological examination showed no significant difference between or within the 3 groups for inflammation or fibrosis. Genetic analysis of adhered tissues supported high rates of epithelialization and inhibition of fibrosis in the amniotic membrane group. LIMITATIONS We are limited by the small sample size and the preclinical nature of the study. CONCLUSION Human-derived amniotic membrane is effective at reducing intraperitoneal adhesion after surgical trauma and is superior to the current antiadhesion barriers. Amniotic membranes are well absorbed and demonstrate short-term safety. See Video Abstract at http://links.lww.com/DCR/A554.
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Tang K, Wu J, Xiong Z, Ji Y, Sun T, Guo X. Human acellular amniotic membrane: A potential osteoinductive biomaterial for bone regeneration. J Biomater Appl 2017; 32:754-764. [PMID: 29105544 DOI: 10.1177/0885328217739753] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Human acellular amniotic membrane is an acellular, naturally extracellular matrix material with various bioactive factors, which applied in tissue engineering in clinic. Several studies have applied human acellular amniotic membrane in skin and ocular surface tissue engineering to enhance tissue regeneration. However, the application of human acellular amniotic membrane in bone tissue engineering was rarely investigated. The aim of the current study was to investigate the osteoinductivity, angiogenesis and the early molecular changes of human acellular amniotic membrane to bone regeneration. Our results showed that human acellular amniotic membrane with excellent biocompatibility was beneficial for bone marrow mesenchymal stem cells proliferation and osteogenic differentiation. In rat femoral defect model, the existence of human acellular amniotic membrane significantly improved bone regeneration in the defects. The gene expression of CXCR-4, MCP-1, OC and CatK which were connected with cells recruitment and bone remodeling, was enhanced in the defects implanted with human acellular amniotic membrane. The results of this study suggest that human acellular amniotic membrane is an osteoinductive biomaterial for bone regeneration.
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Affiliation(s)
- Kai Tang
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Jiayi Wu
- 2 Department of Dermatology, Tongji Hospital, Tongji Medical College, Huazhong University of Science & Technology, Wuhan, China
| | - Zekang Xiong
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yanhui Ji
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Tingfang Sun
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Xiaodong Guo
- 1 Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
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Bertone AL, Reisbig NA, Kilborne AH, Kaido M, Salmanzadeh N, Lovasz R, Sizemore JL, Scheuermann L, Kopp RJ, Zekas LJ, Brokken MT. Equine Dental Pulp Connective Tissue Particles Reduced Lameness in Horses in a Controlled Clinical Trial. Front Vet Sci 2017; 4:31. [PMID: 28344975 PMCID: PMC5344919 DOI: 10.3389/fvets.2017.00031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2016] [Accepted: 02/20/2017] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE To assess if injection of allogeneic dental pulp tissue particles would improve lameness in horses with naturally occurring osteoarthritis (OA) or soft tissue (ST) injury. DESIGN Prospective, randomized, blinded, and controlled clinical trial and client survey assessment. ANIMALS Forty lame client-owned horses. PROCEDURES Sterile dental pulp, recovered from otherwise healthy foals that perish during dystocia, was processed under good manufacturing processing to produce mechanically manipulated, unexpanded pulp tissue particles containing viable cells surrounded in extracellular matrix. Forty lame client-owned horses with confirmed OA (n = 20), or ST injury (desmitis or tendonitis) received a 2 mL intra-articular (n = 20 OA) or intra-lesional (n = 20) injection of control transport vehicle (n = 20) or 10 × 106 dental pulp tissue particles (n = 20). Acclimatized horses had baseline measurements performed and were then injected on day 0. Horses were treadmill exercised for 2 weeks, evaluated by clinical parameters, lameness score, edema (score and circumference), pain on flexion (OA) or pressure (ST), and clients' scores for pain and discomfort before and through 45 days after pulp injection. Twenty horses were available for >2.5-year follow-up. RESULTS Pulp-treated horses showed decrease in lameness compared to baseline (P < 0.009) or placebo controls (P < 0.013) for at least 2 weeks. Client assessments of comfort were improved between before and 45 days after pulp injection (P < 0.001). Clinical improvement with ST injury was significantly greater than OA (P < 0.001). At >2.5-year follow-up, at least 10 horses were in work. CONCLUSION AND CLINICAL RELEVANCE Dental pulp tissue particles can be considered as a treatment option for equine lameness due to OA, desmitis, or tendonitis.
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Affiliation(s)
- Alicia L. Bertone
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Nathalie A. Reisbig
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Allison H. Kilborne
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Mari Kaido
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Navid Salmanzadeh
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Rebecca Lovasz
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Joy L. Sizemore
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Logan Scheuermann
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Rosalind J. Kopp
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Lisa J. Zekas
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
| | - Matthew T. Brokken
- Department of Veterinary Clinical Sciences, College of Veterinary Medicine, The Ohio State University, Columbus, OH, USA
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Wang PY, Ding S, Sumer H, Wong RCB, Kingshott P. Heterogeneity of mesenchymal and pluripotent stem cell populations grown on nanogrooves and nanopillars. J Mater Chem B 2017; 5:7927-7938. [DOI: 10.1039/c7tb01878a] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Surface nanotopographies are a powerful way of manipulating cell morphology and subsequent differentiation.
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Affiliation(s)
- Peng-Yuan Wang
- Department of Chemistry and Biotechnology
- Faculty of Science
- Engineering and Technology
- Swinburne University of Technology
- Hawthorn
| | - Sheryl Ding
- Department of Chemistry and Biotechnology
- Faculty of Science
- Engineering and Technology
- Swinburne University of Technology
- Hawthorn
| | - Huseyin Sumer
- Department of Chemistry and Biotechnology
- Faculty of Science
- Engineering and Technology
- Swinburne University of Technology
- Hawthorn
| | - Raymond Ching-Bong Wong
- Centre for Eye Research Australia & Ophthalmology
- Department of Surgery
- The University of Melbourne
- Australia
| | - Peter Kingshott
- Department of Chemistry and Biotechnology
- Faculty of Science
- Engineering and Technology
- Swinburne University of Technology
- Hawthorn
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Fetal Membranes-Derived Stem Cells Microenvironment. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2017; 1041:235-244. [PMID: 29204836 DOI: 10.1007/978-3-319-69194-7_12] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Recently, the regenerative medicine has been trying to congregate different areas such as tissue engineering and cellular therapy, in order to offer effective treatments to overcome several human and veterinary medical problems. In this regard, fetal membranes have been proposed as a powerful source for obtainment of multipotent stem cells with low immunogenicity, anti-inflammatory properties and nontumorigenicity properties for the treatment of several diseases, including replacing cells lost due to tissue injuries or degenerative diseases. Morpho-physiological data have shown that fetal membranes, especially the yolk sac and amnion play different functions according to the gestational period, which are direct related to the features of the microenvironment that their cells are subject. The characteristics of the microenvironment affect or controls important cellular events involved with proliferation, division and maintenance of the undifferentiated stage or differentiation, especially acting on the extracellular matrix components. Considering the importance of the microenvironment and the diversity of embryonic and fetal membrane-derived stem cells, this chapter will addressed advances in the isolation, phenotyping, characteristics of the microenvironment, and applications of yolk sac and amniotic membrane-derived stem cells for human and veterinary regenerative medicine.
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Fleury V, Murukutla AV, Chevalier NR, Gallois B, Capellazzi-Resta M, Picquet P, Peaucelle A. Physics of amniote formation. Phys Rev E 2016; 94:022426. [PMID: 27627351 DOI: 10.1103/physreve.94.022426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2016] [Indexed: 11/07/2022]
Abstract
We present a detailed study of the formation of the amniotic sac in the avian embryo, and a comparison with the crocodile amniotic sac. We show that the amniotic sac forms at a circular line of stiffness contrast, separating rings of cell domains. Cells align at this boundary, and this in turn orients and concentrates the tension forces. The tissue fold which forms the amniotic sac is locked exactly along this line due to the colocalization of the stiffness contrast and of the tensile force. In addition, the tensile force plays a regenerative role when the amniotic sac is cut. The fold forming the ventral side of the embryo displays the same characteristics. This work shows that amniote embryogenesis consists of a cascade of buckling events taking place at the boundaries between regions of differing mechanical properties. Hence, amniote embryogenesis relies on a simple and robust biomechanical scheme used repeatedly, and selected ancestrally.
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Affiliation(s)
- Vincent Fleury
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
| | - Ameya Vaishnavi Murukutla
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
| | - Nicolas R Chevalier
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
| | - Benjamin Gallois
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
| | - Marina Capellazzi-Resta
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
| | - Pierre Picquet
- Alligator Bay, 62 route du Mont Saint-Michel, Beauvoir 50170, Manche, France
| | - Alexis Peaucelle
- Laboratoire Matière et Systèmes Complexes, UMR 7057, Université Paris Diderot/CNRS, 10 rue Alice Domont et Léonie Duquet, Paris 75013, France
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Mur-Novales R, López-Gatius F, Serrano-Pérez B, García-Ispierto I, Darwich L, Cabezón O, de Sousa NM, Beckers JF, Almería S. ExperimentalNeospora CaninumInfection in Pregnant Dairy Heifers Raises Concentrations of Pregnancy-Associated Glycoproteins 1 and 2 in Foetal Fluids. Reprod Domest Anim 2016; 51:282-6. [DOI: 10.1111/rda.12678] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2016] [Accepted: 01/27/2016] [Indexed: 11/28/2022]
Affiliation(s)
- R Mur-Novales
- Department of Animal Production; University of Lleida; Lleida Spain
| | | | - B Serrano-Pérez
- Department of Animal Production; University of Lleida; Lleida Spain
- Agrotecnio Center; University of Lleida; Lleida Spain
| | - I García-Ispierto
- Department of Animal Production; University of Lleida; Lleida Spain
- Agrotecnio Center; University of Lleida; Lleida Spain
| | - L Darwich
- Departament de Sanitat i Anatomia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona (UAB); Cerdanyola del Vallès Spain
- Centre de Recerca en Sanitat Animal (CReSA); Institut de Recerca i Tecnologia Agroalimentàries (IRTA); Cerdanyola del Vallès Spain
| | - O Cabezón
- SeFAS; UAB; Cerdanyola del Vallés; Spain Spain
| | - NM de Sousa
- Physiology of Reproduction; Faculty of Veterinary Medicine; University of Liège; Liège Belgium
| | - JF Beckers
- Physiology of Reproduction; Faculty of Veterinary Medicine; University of Liège; Liège Belgium
| | - S Almería
- Departament de Sanitat i Anatomia Animals; Facultat de Veterinària; Universitat Autònoma de Barcelona (UAB); Cerdanyola del Vallès Spain
- Centre de Recerca en Sanitat Animal (CReSA); Institut de Recerca i Tecnologia Agroalimentàries (IRTA); Cerdanyola del Vallès Spain
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