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Choi H, Lee HE, Lee SV, Joo JS, Baek H, Kim S, Park M, Lee SW, Yang SW, Hwang HS, Kim JY, Kang YS. Sialylated IVIg promotes clinical improvements in a rabbit dry eye model by regulating inflammatory cytokines. Exp Eye Res 2024; 240:109782. [PMID: 38199260 DOI: 10.1016/j.exer.2024.109782] [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: 08/05/2023] [Revised: 01/03/2024] [Accepted: 01/04/2024] [Indexed: 01/12/2024]
Abstract
Dry eye disease (DED) is caused by a loss of homeostasis of the tear film, which results in visual disturbance, ocular surface inflammation and damage, and neurosensory abnormalities. Although it is prevalent in 5-50% of the global population, there are limited clinical options for its treatment. This study explored the potential use of human intravenous immunoglobulin (IVIg) and its enriched fractions of sialylation, sialylated IVIg (sIVIg), as a treatment for DED. Fifteen female New Zealand white rabbits were topically instilled with 0.2% benzalkonium chloride (BAC) twice daily for five consecutive days to induce experimental dry eye. Saline, 0.4% IVIg, or 0.04% sIVIg eye drops were instilled twice daily for 20 consecutive days. Clinical evaluations, such as non-invasive tear break-up time (NIBUT) and corneal fluorescein staining (CFS), were conducted. mRNA levels of mucin 4, mucin 16, TNF-α, IL-1β, MMP9, IL-10, TGF-β, and CD209 in rabbit conjunctival tissues were examined using reverse transcription polymerase chain reaction (RT-PCR) or quantitative RT-PCR (qRT-PCR). The relationships between CD209 family members in rabbits and various mammalian species were analyzed using a phylogenetic tree. IVIg or sIVIg treatment resulted in clinical improvements in the rabbit DED model. The inflammatory cytokines, TNF-α and IL-1β, were increased and mucin 4 and mucin 16, cell surface-associated mucins, were decreased in BAC-induced dry eye. Following IVIg or sIVIg treatment, inflammatory cytokines decreased, whereas the anti-inflammatory cytokine, IL-10, increased substantially. Moreover, a 10-fold lower sIVIg treatment dose resulted in prolonged IL-10 production, representing a significantly improved DED compared to IVIg. Furthermore, the expression of rabbit CD209 mRNA in the rabbit conjunctiva and its close relationship with primate homologs suggest that it may interact with IVIg or sIVIg to promote IL-10 expression, as previously described in humans. At a lower dosage, sIVIg showed a more efficient improvement in DED, making it a promising new candidate medication for DED.
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Affiliation(s)
- Hyeongjwa Choi
- Konkuk-KIST Biomedical Science & Technology, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Ha-Eun Lee
- Department of Veterinary Ophthalmology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Sung-Vin Lee
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Jin-Soo Joo
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Hayeon Baek
- Konkuk-KIST Biomedical Science & Technology, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Seulki Kim
- Department of Obstetrics and Gynecology, Sang-Gye Paik Hospital, Inje University School of Medicine, 1342 Dongil-ro, Nowon-gu, Seoul, 01757, Republic of Korea
| | - Min Park
- Konkuk-KIST Biomedical Science & Technology, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Sang-Won Lee
- Department of Veterinary Microbiology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea; Veterinary Science Research Institute, KU Research Center for Zoonosis, KU Center for Animal Blood Medical Science Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Seung-Woo Yang
- Department of Obstetrics and Gynecology, Sang-Gye Paik Hospital, Inje University School of Medicine, 1342 Dongil-ro, Nowon-gu, Seoul, 01757, Republic of Korea
| | - Han-Sung Hwang
- Division of Maternal and Fetal Medicine, Department of Obstetrics and Gynecology, Research Institute of Medical Science, Konkuk University School of Medicine, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea
| | - Joon-Young Kim
- Department of Veterinary Ophthalmology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea.
| | - Young-Sun Kang
- Konkuk-KIST Biomedical Science & Technology, Konkuk University, 120, Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea; Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea; Veterinary Science Research Institute, KU Research Center for Zoonosis, KU Center for Animal Blood Medical Science Konkuk University, 120 Neungdong-ro, Gwangjin-gu, Seoul, 05029, Republic of Korea.
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Carletti P, Sepulveda Beltran PA, Levine H, Dubovy SR, Perez VL, Amescua G. Long-Term Comprehensive Management of Bilateral Limbal Stem Cell Deficiency Secondary to Severe Chemical Burn: 10 Years of Follow-Up. Ocul Immunol Inflamm 2023; 31:1629-1634. [PMID: 35816015 DOI: 10.1080/09273948.2022.2090965] [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: 04/20/2022] [Accepted: 06/13/2022] [Indexed: 10/17/2022]
Abstract
PURPOSE To describe the long-term management of bilateral limbal stem cell deficiency secondary to a severe chemical burn. METHODS Descriptive case report. IMPORTANCE This case highlights the importance of early intervention in ocular chemical burns for the preservation of tissue integrity and avoidance of perforation. We also review the use of proper ocular surface reconstructive techniques to restore the function of the limbal area, as well as the immunomodulatory strategies and follow-up needed for these interventions.
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Affiliation(s)
- Piero Carletti
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | | | - Harry Levine
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Sander R Dubovy
- Florida Lions Ocular Pathology Laboratory, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
| | - Victor L Perez
- Duke Eye Center, Duke University, Durham, North Carolina, USA
- Foster Center for Ocular Immunology, Duke University, Durham, North Carolina, USA
| | - Guillermo Amescua
- Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, Florida, USA
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3
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Soifer M, Tovar A, Wang M, Mousa HM, Yennam S, Sabater AL, Pflugfelder S, Perez VL. A multicenter report of the use of plasma rich in growth factors (PRGF) for the treatment of patients with ocular surface diseases in North America. Ocul Surf 2022; 25:40-48. [PMID: 35489588 DOI: 10.1016/j.jtos.2022.04.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 04/22/2022] [Accepted: 04/23/2022] [Indexed: 12/31/2022]
Abstract
PURPOSE To investigate the efficacy and safety of plasma rich in growth factors (PRGF) eyedrops in the management of patients with ocular surface diseases in North America. METHODS Multicenter interventional case series of patients using PRGF eyedrops for the first time. A cohort of patients was analyzed for corneal staining score at initial visit and at 3 months of therapy with PRGF. Another cohort responded to a 10-item questionnaire that evaluated patients' satisfaction and safety, which included the symptom assessment questionnaire in dry eye (SANDE) score, after 6 months of PRGF treatment. RESULTS A total of 153 patients were analyzed. Of these, 102 were reviewed for corneal epitheliopathy and 99 patients responded to the questionnaire. The mean (±SD) age of the population was 63.7 ± 17 years and 72.5% were female. The clinical indications for PRGF usage were dry eye (60%), neurotrophic keratopathy (15%), dormant corneal ulcers (12%), limbal stem cell deficiency (10%), and cicatrizing conjunctivitis (4%). At the final visit, 74.3% of patients showed an improvement of their corneal staining. Those who had punctate epithelial erosions or epithelial defects were reduced from 76.5% to 47% and 23.5%-7.8% respectively (p < 0.0001). Symptoms, measured via SANDE score, significantly decreased from a median of 90 to 34.6 out of 100 points on follow-up (p < 0.0001). Only one patient (0.98%) complained of ocular burning sensation as a side effect. CONCLUSIONS This multicentric study demonstrates the safety and efficacy of the use of PRGF for treating signs and symptoms in patients with significant ocular surface diseases.
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Affiliation(s)
- Matias Soifer
- Department of Ophthalmology, Duke Eye Center, Duke University School of Medicine, Durham, NC, USA
| | - Arianna Tovar
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | - Margaret Wang
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA
| | - Hazem M Mousa
- Department of Ophthalmology, Duke Eye Center, Duke University School of Medicine, Durham, NC, USA
| | - Sowmya Yennam
- Department of Ophthalmology, Baylor College of Medicine, Houston, TX, USA
| | - Alfonso L Sabater
- Department of Ophthalmology, Bascom Palmer Eye Institute, University of Miami Miller School of Medicine, Miami, FL, USA
| | | | - Victor L Perez
- Department of Ophthalmology, Duke Eye Center, Duke University School of Medicine, Durham, NC, USA.
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Padilla S, Nurden AT, Prado R, Nurden P, Anitua E. Healing through the lens of immunothrombosis: Biology-inspired, evolution-tailored, and human-engineered biomimetic therapies. Biomaterials 2021; 279:121205. [PMID: 34710794 DOI: 10.1016/j.biomaterials.2021.121205] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2021] [Revised: 09/30/2021] [Accepted: 10/20/2021] [Indexed: 12/14/2022]
Abstract
Evolution, from invertebrates to mammals, has yielded and shaped immunoclotting as a defense and repair response against trauma and infection. This mosaic of immediate and local wound-sealing and pathogen-killing mechanisms results in survival, restoration of homeostasis, and tissue repair. In mammals, immunoclotting has been complemented with the neuroendocrine system, platelets, and contact system among other embellishments, adding layers of complexity through interconnecting blood-born proteolytic cascades, blood cells, and the neuroendocrine system. In doing so, immunothrombosis endows humans with survival advantages, but entails vulnerabilities in the current unprecedented and increasingly challenging environment. Immunothrombosis and tissue repair appear to go hand in hand with common mechanisms mediating both processes, a fact that is underlined by recent advances that are deciphering the mechanisms of the repair process and of the biochemical pathways that underpins coagulation, hemostasis and thrombosis. This review is intended to frame both the universal aspects of tissue repair and the therapeutic use of autologous fibrin matrix as a biology-as-a-drug approach in the context of the evolutionary changes in coagulation and hemostasis. In addition, we will try to shed some light on the molecular mechanisms underlying the use of the autologous fibrin matrix as a biology-inspired, evolution-tailored, and human-engineered biomimetic therapy.
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Affiliation(s)
- Sabino Padilla
- Eduardo Anitua Foundation for Biomedical Research, Vitoria, Spain; BTI-Biotechnology Institute ImasD, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain.
| | - Alan T Nurden
- Institut Hospitalo-Universitaire LIRYC, Hôpital Xavier Arnozan, Pessac, France
| | - Roberto Prado
- Eduardo Anitua Foundation for Biomedical Research, Vitoria, Spain; BTI-Biotechnology Institute ImasD, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain
| | - Paquita Nurden
- Institut Hospitalo-Universitaire LIRYC, Hôpital Xavier Arnozan, Pessac, France
| | - Eduardo Anitua
- Eduardo Anitua Foundation for Biomedical Research, Vitoria, Spain; BTI-Biotechnology Institute ImasD, Vitoria, Spain; University Institute for Regenerative Medicine & Oral Implantology - UIRMI (UPV/EHU-Fundación Eduardo Anitua), Vitoria, Spain.
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5
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Seidelmann N, Duarte Campos DF, Rohde M, Johnen S, Salla S, Yam GHF, Mehta JS, Walter P, Fuest M. Human platelet lysate as a replacement for fetal bovine serum in human corneal stromal keratocyte and fibroblast culture. J Cell Mol Med 2021; 25:9647-9659. [PMID: 34486211 PMCID: PMC8505853 DOI: 10.1111/jcmm.16912] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2021] [Revised: 08/19/2021] [Accepted: 08/23/2021] [Indexed: 12/13/2022] Open
Abstract
The isolation and propagation of primary human corneal stromal keratocytes (CSK) are crucial for cellular research and corneal tissue engineering. However, this delicate cell type easily transforms into stromal fibroblasts (SF) and scar inducing myofibroblasts (Myo‐SF). Current protocols mainly rely on xenogeneic fetal bovine serum (FBS). Human platelet lysate (hPL) could be a viable, potentially autologous, alternative. We found high cell survival with both supplements in CSK and SF. Cell numbers and Ki67+ ratios increased with higher fractions of hPL and FBS in CSK and SF. We detected a loss in CSK marker expression (Col8A2, ALDH3A1 and LUM) with increasing fractions of FBS and hPL in CSK and SF. The expression of the Myo‐SF marker SMA increased with higher amounts of FBS but decreased with incremental hPL substitution in both cell types, implying an antifibrotic effect of hPL. Immunohistochemistry confirmed the RT‐PCR findings. bFGF and HGF were only found in hPL and could be responsible for suppressing the Myo‐SF conversion. Considering all findings, we propose 0.5% hPL as a suitable substitution in CSK culture, as this xeno‐free component efficiently preserved CSK characteristics, with non‐inferiority in terms of cell viability, cell number and proliferation in comparison to the established 0.5% FBS protocol.
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Affiliation(s)
- Nina Seidelmann
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany
| | - Daniela F Duarte Campos
- Institute of Applied Medical Engineering, RWTH Aachen University Hospital, Aachen, Germany.,Center for Molecular Biology, Heidelberg University, Heidelberg, Germany
| | - Malena Rohde
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany
| | - Sandra Johnen
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany
| | - Sabine Salla
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany.,Cornea Bank Aachen, RWTH Aachen University, Aachen, Germany
| | - Gary Hin-Fai Yam
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, Pennsylvania, USA.,Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore
| | - Jodhbir S Mehta
- Tissue Engineering and Cell Therapy Group, Singapore Eye Research Institute, Singapore, Singapore.,Singapore National Eye Centre, Singapore, Singapore.,Eye-Academic Clinical Program, Duke-National University of Singapore (NUS) Graduate Medical School, Singapore, Singapore.,School of Material Science and Engineering, Nanyang Technological University, Singapore, Singapore
| | - Peter Walter
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany.,Cornea Bank Aachen, RWTH Aachen University, Aachen, Germany
| | - Matthias Fuest
- Department of Ophthalmology, RWTH Aachen University, Aachen, Germany
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Gaviño-Orduña JF, Caviedes-Bucheli J, Manzanares-Céspedes MC, Román-Richon S, Martin-Biedma B, Segura-Egea JJ, Berástegui-Jimeno E, López-López J. Dentin Growth after Direct Pulp Capping with the Different Fractions of Plasma Rich in Growth Factors (PRGF) vs. MTA: Experimental Study in Animal Model. J Clin Med 2021; 10:jcm10153432. [PMID: 34362215 PMCID: PMC8347198 DOI: 10.3390/jcm10153432] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2021] [Revised: 07/24/2021] [Accepted: 07/28/2021] [Indexed: 11/24/2022] Open
Abstract
Background: This study aimed to evaluate the area of dentin growth in rabbit incisors after pulp capping with plasma rich in growth factors (PRGF) compared with mineral trioxide aggregate (MTA) by fluorescence. Methods: twenty-seven upper and lower incisors of rabbits were divided into 4 groups: poor PRGF (F1) (n = 9 teeth), rich PRGF (F2) (n = 8 teeth), ProRoot MTA (positive control, n = 5 teeth), and untreated (NC) (negative control, n = 5). Fluorochrome markers were injected 24 h before surgery and the day before euthanasia, 28 days after the vital pulp therapy (VPT). Two transverse cuts were performed to every tooth: the first cut (A), 1 mm incisal to the gingival margin, and the second cut (B), 5 mm apical to the first cut. The sections were assessed with histomorphometric evaluation by fluorescence microscopy, comparing the dentin area between fluorescence marks and the total mineralized area. Results: The higher percentage of dentin growth was observed in the F2 group (B = 63.25%, A = 36.52%), followed by F1 (B = 57.63%, A = 30,12%) and MTA (B = 38.64%, A = 15.74%). The group with lowest percentage of dentin growth was the NC group (B = 29.22%, A = 7.82%). Significant difference (p < 0.05) was found between F2 group and MTA, also statistically significant difference has been observed comparing dentin growth areas of NC group with F1 and F2 groups. Conclusions: The application of PRGF rich and poor fraction as a pulp capping material stimulated dentin formation more intensively than MTA and NC.
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Affiliation(s)
- José F. Gaviño-Orduña
- Department of Odonto-Stomatology, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona, 08907 Barcelona, Spain; (S.R.-R.); (E.B.-J.)
- Correspondence: (J.F.G.-O.); (J.L.-L.)
| | - Javier Caviedes-Bucheli
- Centro de Investigaciones Odontologicas (CIO), Pontificia Universidad Javeriana, Bogota 11001000, Colombia;
| | - María C. Manzanares-Céspedes
- Human Anatomy and Embryology Unit, Department of Pathology and Experimental Therapeutics, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona, 08907 Barcelona, Spain;
| | - Sophie Román-Richon
- Department of Odonto-Stomatology, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona, 08907 Barcelona, Spain; (S.R.-R.); (E.B.-J.)
| | - Benjamín Martin-Biedma
- Unit of Dental Pathology and Therapeutics II, School of Medicine and Dentistry, University of Santiago de Compostela, 15782 Santiago de Compostela, Spain;
| | - Juan J. Segura-Egea
- Department of Stomatology, School of Dentistry, University of Sevilla, 41009 Sevilla, Spain;
| | - Esther Berástegui-Jimeno
- Department of Odonto-Stomatology, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona, 08907 Barcelona, Spain; (S.R.-R.); (E.B.-J.)
| | - José López-López
- Department of Odonto-Stomatology, Faculty of Medicine and Health Sciences, School of Dentistry, University of Barcelona, 08907 Barcelona, Spain; (S.R.-R.); (E.B.-J.)
- Service of the Surgical Medical Area, Odontological Hospital University of Barcelona, University of Barcelona, 08907 Barcelona, Spain
- Oral Health and Masticatory System Group—IDIBELL (Bellvitge Biomedical Research Institute), University of Barcelona, 08907 Barcelona, Spain
- Correspondence: (J.F.G.-O.); (J.L.-L.)
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7
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Anitua E, de la Sen-Corcuera B, Orive G, Sánchez-Ávila RM, Heredia P, Muruzabal F, Merayo-Lloves J. Progress in the use of plasma rich in growth factors in ophthalmology: from ocular surface to ocular fundus. Expert Opin Biol Ther 2021; 22:31-45. [PMID: 34275392 DOI: 10.1080/14712598.2021.1945030] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Introduction: The use of blood derivatives and especially Plasma rich in growth factors (PRGF), for regenerative purposes has been a common trend along the last decades in the field of oral surgery, dermatology, orthopedics, and more recently in ophthalmology.Areas covered: PRGF is a type of platelet-rich plasma that is being explored for the treatment of ocular injuries. The present review article highlights 50 ophthalmology-related publications about the application of PRGF in the treatment of acute and chronic pathologies in ophthalmology as well as most relevant challenges and future prospects.Expert opinion: PRGF technology provides a wide range of formulations that can be used therapeutically in many different acute and chronic ocular pathologies. In addition to eye drops enriched with autologous growth factors, PRGF enables the preparation of both immunologically safe and fibrin-based formulations. Recent advances in the field have promoted PRGF storage for 12 months under freezing conditions, its daily use for 7 days at room temperature and the freeze-dried formulation. The thermally treated immunosafe formulation has shown promising clinical results for the treatment of several diseases such as Sjögren syndrome, graft versus host disease or cicatrizing conjunctivitis. In addition, several fibrin formulations have been preclinically evaluated and clinically incorporated as an adjuvant to ocular surface or glaucoma surgeries, dermal fat graft procedures, limbal stem cell expansion and retinal surgeries. The present review explores the latest scientific and clinical data, current challenges, and main prospects of this technology for the treatment of several ocular injuries.
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Affiliation(s)
- E Anitua
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - B de la Sen-Corcuera
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - G Orive
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain.,NanoBioCel Group, School of Pharmacy, University of the Basque Country (UPV/EHU), Oviedo, Vitoria-Gasteiz, Spain
| | - R M Sánchez-Ávila
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain
| | - P Heredia
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - F Muruzabal
- Regenerative medicine, Biotechnology Institute (BTI), Vitoria, Spain.,Regenerative medicine, University Institute for Regenerative Medicine and Oral Implantology (UIRMI), Vitoria, Spain
| | - J Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, Spain
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Plasma Rich in Growth Factors Promotes Autophagy in ARPE19 Cells in Response to Oxidative Stress Induced by Blue Light. Biomolecules 2021; 11:biom11070954. [PMID: 34203504 PMCID: PMC8301887 DOI: 10.3390/biom11070954] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 12/15/2022] Open
Abstract
Age-related macular degeneration (AMD) causes the degeneration of photoreceptors and retinal cells leading to vision loss in older subjects. Among possible exogenous risk factors, it has been recently proposed that long-term exposure to blue light could aggravate the course of AMD. In the search for therapeutic options, plasma rich in growth factors (PRGF) has been shown to enhance cell antioxidant pathways and protect photoreceptors against the harm produced by blue light, although its mechanism of action remains unknown. One possible mechanism, autophagy, is one of the most conservative cell renewal systems used in eukaryotes to destroy cellular components that have been damaged by some kind of insult. The oxidative stress of exposure to blue light is known to induce cell autophagy. In this study, we examined the combined effects on autophagy of blue light and PRGF in a retinal cell line, ARPE19. In response to treatment with both PRGF and blue light, we detected the modulated expression of autophagy markers such as NF-kB, p62/sqstm1, Atg5, LC3 and Beclin1, and inflammatory markers such as IL1B and IL18. Our findings suggest that PRGF promotes cell autophagy in response to exposure to blue light.
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9
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Jhanji V, Billig I, Yam GHF. Cell-Free Biological Approach for Corneal Stromal Wound Healing. Front Pharmacol 2021; 12:671405. [PMID: 34122095 PMCID: PMC8193853 DOI: 10.3389/fphar.2021.671405] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Accepted: 05/17/2021] [Indexed: 12/13/2022] Open
Abstract
Corneal opacification is the fourth most common cause of blindness globally behind cataracts, glaucoma, and age-related macular degeneration. The standard treatment of serious corneal scarring is corneal transplantation. Though it is effective for restoring vision, the treatment outcome is not optimal, due to limitations such as long-term graft survival, lifelong use of immunosuppressants, and a loss of corneal strength. Regulation of corneal stromal wound healing, along with inhibition or downregulation of corneal scarring is a promising approach to prevent corneal opacification. Pharmacological approaches have been suggested, however these are fraught with side effects. Tissue healing is an intricate process that involves cell death, proliferation, differentiation, and remodeling of the extracellular matrix. Current research on stromal wound healing is focused on corneal characteristics such as the immune response, angiogenesis, and cell signaling. Indeed, promising new technologies with the potential to modulate wound healing are under development. In this review, we provide an overview of cell-free strategies and some approaches under development that have the potential to control stromal fibrosis and scarring, especially in the context of early intervention.
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Affiliation(s)
- Vishal Jhanji
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Isabelle Billig
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, United States
| | - Gary Hin-Fai Yam
- Department of Ophthalmology, University of Pittsburgh, Pittsburgh, PA, United States
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10
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Feldt J, Welss J, Schneider U, Paulsen F. Gold-based blood serum treatment promotes wound closure of corneal epithelial cell defects in primary in vitro experiments. Ann Anat 2021; 237:151745. [PMID: 33905809 DOI: 10.1016/j.aanat.2021.151745] [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: 03/24/2021] [Revised: 03/29/2021] [Accepted: 03/30/2021] [Indexed: 11/16/2022]
Abstract
BACKGROUND Wound healing disorders characterised by impaired or delayed reepithelialisation are a serious medical problem. In the present study, we show that gold-based blood serum therapy is a suitable therapeutic approach and shows a supportive effect in wound closure of human corneal epithelial cells (HCE) in primary in vitro experiments. METHODS For this purpose, blood from healthy individuals was incubated without (S.Ctrl) or with gold-microparticles (S.Therapy) for 24 h. Prior to human epithelial cell stimulation (HCE), the gold particles were removed and the serum was diluted in DMEM (10 % or 30 %). Both groups of serum were compared after injury. HCE were cultured and injured (corneal in vitro wound model) and then stimulated with S.Ctrl or S. THERAPY RESULTS Treatment with serum from a gold-based serum therapy (S.Therapy) shows a supportive effect on wound healing in HCE cells in vitro. In addition, gold therapy supports the secretion of important cytokines normally associated with ocular surface wound healing (IL-1β, IL-6, TNF-α and TGF-β) in HCE cells. CONCLUSIONS Therapy with gold-based blood serum significantly promotes the secretion and expression of cytokines and growth factors in HCE cells in vitro. Further preclinical experiments are necessary to demonstrate the influence of this therapy on HCE cells for possible clinical application on the human ocular surface and to prove its function also in poorly healing corneal lesions.
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Affiliation(s)
- Jessica Feldt
- Institute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany.
| | - Jessica Welss
- Institute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany
| | | | - Friedrich Paulsen
- Institute of Functional and Clinical Anatomy, Friedrich Alexander University Erlangen-Nürnberg, Erlangen, Germany; Sechenov University, Department of Operative Surgery and Topographic Anatomy, Moscow, Russia
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11
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Plasma Rich in Growth Factors Enhances Cell Survival after in Situ Retinal Degeneration. Int J Mol Sci 2020; 21:ijms21207442. [PMID: 33050198 PMCID: PMC7590176 DOI: 10.3390/ijms21207442] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/24/2020] [Accepted: 10/08/2020] [Indexed: 01/21/2023] Open
Abstract
PURPOSE The purpose of this study was to examine the effect of plasma rich in growth factors (PRGFs) under blue light conditions in an in vivo model of retinal degeneration. METHODS Male Wistar rats were exposed to dark/blue light conditions for 9 days. On day 7, right eyes were injected with saline and left eyes with PRGF. Electroretinography (ERG) and intraocular pressure (IoP) measurements were performed before and after the experiment. After sacrifice, retinal samples were collected. Hematoxylin and eosin staining was performed to analyze the structure of retinal sections. Immunofluorescence for brain-specific homeobox/POU domain protein 3A (Brn3a), choline acetyltransferase (ChAT), rhodopsin, heme oxygenase-1 (HO-1), and glial fibrillary acidic protein (GFAP) was performed to study the retinal conditions. RESULTS Retinal signaling measured by ERG was reduced by blue light and recovered with PRGF; however, IoP measurements did not show significant differences among treatments. Blue light reduced the expression for Brn3a, ChAT, and rhodopsin. Treatment with PRGF showed a recovery in their expressions. HO-1 and GFAP results showed that blue light increased their expression but the use of PRGF reduced the effect of light. CONCLUSIONS Blue light causes retinal degeneration. PRGF mitigated the injury, restoring the functionality of these cells and maintaining the tissue integrity.
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Hernáez-Moya R, González S, Urkaregi A, Pijoan JI, Deng SX, Andollo N. Expansion of Human Limbal Epithelial Stem/Progenitor Cells Using Different Human Sera: A Multivariate Statistical Analysis. Int J Mol Sci 2020; 21:ijms21176132. [PMID: 32854428 PMCID: PMC7503296 DOI: 10.3390/ijms21176132] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 08/23/2020] [Accepted: 08/24/2020] [Indexed: 12/13/2022] Open
Abstract
Transplantation of human cultured limbal epithelial stem/progenitor cells (LESCs) has demonstrated to restore the integrity and functionality of the corneal surface in about 76% of patients with limbal stem cell deficiency. However, there are different protocols for the expansion of LESCs, and many of them use xenogeneic products, being a risk for the patients’ health. We compared the culture of limbal explants on the denuded amniotic membrane in the culture medium—supplemental hormone epithelial medium (SHEM)—supplemented with FBS or two differently produced human sera. Cell morphology, cell size, cell growth rate, and the expression level of differentiation and putative stem cell markers were examined. Several bioactive molecules were quantified in the human sera. In a novel approach, we performed a multivariate statistical analysis of data to investigate the culture factors, such as differently expressed molecules of human sera that specifically influence the cell phenotype. Our results showed that limbal cells cultured with human sera grew faster and contained similar amounts of small-sized cells, higher expression of the protein p63α, and lower of cytokeratin K12 than FBS cultures, thus, maintaining the stem/progenitor phenotype of LESCs. Furthermore, the multivariate analysis provided much data to better understand the obtaining of different cell phenotypes as a consequence of the use of different culture methodologies or different culture components.
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Affiliation(s)
- Raquel Hernáez-Moya
- Department of Cell Biology and Histology, School of Medicine and Nursing, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
| | - Sheyla González
- Cornea Division, Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; (S.G.); (S.X.D.)
| | - Arantza Urkaregi
- Department of Applied Mathematics and Statistics and Operational Research, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
| | - Jose Ignacio Pijoan
- Clinical Epidemiology Unit, Cruces University Hospital, Biocruces Bizkaia Health Research Institute, 48903 Barakaldo, Bizkaia, Spain;
| | - Sophie X. Deng
- Cornea Division, Stein Eye Institute, University of California, Los Angeles, CA 90095, USA; (S.G.); (S.X.D.)
| | - Noelia Andollo
- Department of Cell Biology and Histology, School of Medicine and Nursing, Biocruces Bizkaia Health Research Institute, University of the Basque Country UPV/EHU, 48940 Leioa, Bizkaia, Spain;
- Correspondence: ; Tel.: +34-94-601-3295
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13
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A Comprehensive Review of Concentrated Growth Factors and Their Novel Applications in Facial Reconstructive and Regenerative Medicine. Aesthetic Plast Surg 2020; 44:1047-1057. [PMID: 31970453 DOI: 10.1007/s00266-020-01620-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2019] [Accepted: 01/12/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Concentrated growth factors (CGFs) are the latest generation of platelet concentrates. The objective of developing CGF is to increase therapeutic efficacy. However, few studies have supported the superiority of CGF in composition and efficacy. The reconstruction and regeneration process is complicated and long term, whereas bioactivity of CGF is not durable. The purpose of this review is threefold. The first is to recommend more comparative studies between CGF and other platelet concentrates. The second is to constitute a continuous drug delivery system by combining CGF with other biomaterials. Finally, the novel use of CGF in facial regenerative and reconstructive medicine will be highlighted. METHODS A comprehensive review of literature regarding the use of CGF in facial regenerative and reconstructive medicine was performed. Based on the inclusion and exclusion criteria, a total of 135 articles were included. RESULTS The use of CGF involving facial rejuvenation, cartilage grafting, facial bone defects, facial peripheral nerve injury and wounding is reviewed. The reconstructive and regenerative principles lie in firm fibrin scaffolds and continuous in situ delivery of multiple growth factors. CONCLUSIONS CGF represents an advance in personalized medicine concept. However, the current scientific evidences about the use of CGF are limited. More basic and clinical studies should be conducted to understand the characteristics and clinical application of CGF. LEVEL OF EVIDENCE V This journal requires that authors assign a level of evidence to each article. For a full description of these Evidence-Based Medicine ratings, please refer to the Table of Contents or the online Instructions to Authors www.springer.com/00266.
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14
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Antioxidant Role of PRGF on RPE Cells after Blue Light Insult as a Therapy for Neurodegenerative Diseases. Int J Mol Sci 2020; 21:ijms21031021. [PMID: 32033116 PMCID: PMC7037919 DOI: 10.3390/ijms21031021] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2020] [Revised: 01/29/2020] [Accepted: 01/31/2020] [Indexed: 12/17/2022] Open
Abstract
Oxidative stress has a strong impact on the development of retinal diseases such as age-related macular degeneration (AMD). Plasma rich in growth factors (PRGF) is a novel therapeutic approach in ophthalmological pathologies. The aim of this study was to analyze the antioxidant effect of PRGF in retinal epithelial cells (EPR) in in vitro and ex vivo retinal phototoxicity models. In vitro analyses were performed on ARPE19 human cell line. Viability and mitochondrial status were assessed in order to test the primary effects of PRGF. GSH level, and protein and gene expression of the main antioxidant pathway (Keap1, Nrf2, GCL, HO-1, and NQO1) were also studied. Ex vivo analyses were performed on rat RPE, and HO-1 and Nrf2 gene and protein expression were evaluated. The results show that PRGF reduces light insult by stimulating the cell response against oxidative damage and modulates the antioxidant pathway. We conclude that PRGF’s protective effect could prove useful as a new therapy for treating neurodegenerative disorders such as AMD.
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15
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Yang JX, Hsiung TC, Weng FC, Ding SL, Wu CP, Conti M, Chuang TH, Catherine Jin SL. Synergistic effect of phosphodiesterase 4 inhibitor and serum on migration of endotoxin-stimulated macrophages. Innate Immun 2019; 24:501-512. [PMID: 30409089 PMCID: PMC6830870 DOI: 10.1177/1753425918809155] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Macrophage migration is an essential step in host defense against infection and
wound healing. Elevation of cAMP by inhibiting phosphodiesterase 4 (PDE4),
enzymes that specifically degrade cAMP, is known to suppress various
inflammatory responses in activated macrophages, but the role of PDE4 in
macrophage migration is poorly understood. Here we show that the migration of
Raw 264.7 macrophages stimulated with LPS was markedly and dose-dependently
induced by the PDE4 inhibitor rolipram as assessed by scratch wound healing
assay. Additionally, this response required the involvement of serum in the
culture medium as serum starvation abrogated the effect. Further analysis
revealed that rolipram and serum exhibited synergistic effect on the migration,
and the influence of serum was independent of PDE4 mRNA expression in
LPS-stimulated macrophages. Moreover, the enhanced migration by rolipram was
mediated by activating cAMP/exchange proteins directly activated by cAMP (Epac)
signaling, presumably via interaction with LPS/TLR4 signaling with the
participation of unknown serum components. These results suggest that PDE4
inhibitors, together with serum components, may serve as positive regulators of
macrophage recruitment for more efficient pathogen clearance and wound
repair.
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Affiliation(s)
| | | | - Fu-Chun Weng
- 1 National Central University, Taoyuan City, Taiwan
| | | | | | - Marco Conti
- 3 Department of Obstetrics, Gynecology, and Reproductive Sciences, University of California San Francisco, USA
| | - Tsung-Hsien Chuang
- 4 Immunology Research Center, National Health Research Institutes, Miaoli
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16
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Suárez-Barrio C, Etxebarria J, Hernáez-Moya R, Del Val-Alonso M, Rodriguez-Astigarraga M, Urkaregi A, Freire V, Morales MC, Durán JA, Vicario M, Molina I, Herrero-Vanrell R, Andollo N. Hyaluronic Acid Combined with Serum Rich in Growth Factors in Corneal Epithelial Defects. Int J Mol Sci 2019; 20:ijms20071655. [PMID: 30987108 PMCID: PMC6480555 DOI: 10.3390/ijms20071655] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Revised: 03/29/2019] [Accepted: 03/30/2019] [Indexed: 12/30/2022] Open
Abstract
The aim of this study is to assess if an adhesive biopolymer, sodium hyaluronate (NaHA), has synergistic effects with s-PRGF (a serum derived from plasma rich in growth factors and a blood derivative that has already shown efficacy in corneal epithelial wound healing), to reduce time of healing or posology. In vitro proliferation and migration studies, both in human corneal epithelial (HCE) cells and in rabbit primary corneal epithelial (RPCE) cultures, were carried out. In addition, we performed studies of corneal wound healing in vivo in rabbits treated with s-PRGF, NaHA, or the combination of both. We performed immunohistochemistry techniques (CK3, CK15, Ki67, ß4 integrin, ZO-1, α-SMA) in rabbit corneas 7 and 30 days after a surgically induced epithelial defect. In vitro results show that the combination of NaHA and s-PRGF offers the worst proliferation rates in both HCE and RPCE cells. Addition of NaHA to s-PRGF diminishes the re-epithelializing capability of s-PRGF. In vivo, all treatments, given twice a day, showed equivalent efficacy in corneal epithelial healing. We conclude that the combined use of s-PRGF and HaNA as an adhesive biopolymer does not improve the efficacy of s-PRGF alone in the wound healing of corneal epithelial defects.
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Affiliation(s)
- Carlota Suárez-Barrio
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Jaime Etxebarria
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- Department of Ophthalmology, University Hospital of Cruces, BioCruces Health Research Institute, Begiker, 48903 Barakaldo, Spain.
| | - Raquel Hernáez-Moya
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marina Del Val-Alonso
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Maddalen Rodriguez-Astigarraga
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Arantza Urkaregi
- Department of Applied Mathematics and Statistics and Operational Research, BioCruces Health Research Institute, 48940 Leioa, Spain.
| | - Vanesa Freire
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
| | - María-Celia Morales
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Juan Antonio Durán
- R & D Department, Instituto Clínico-Quirúrgico de Oftalmología, 48006 Bilbao, Spain.
- Department of Dermatology, Otorhinolaryngology and Ophthalmology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
| | - Marta Vicario
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Irene Molina
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Rocío Herrero-Vanrell
- Pharmaceutical Innovation in Ophthalmology (InnOftal) UCM Research Group 920415. Department of Pharmaceutics and Food Technology, Faculty of Pharmacy, Complutense University, 28040 Madrid, Spain.
| | - Noelia Andollo
- Department of Cell Biology and Histology, School of Medicine and Nursing, University of the Basque Country, BioCruces Health Research Institute, Begiker, 48940 Leioa, Spain.
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17
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Lorenzo Y, Haug Berg K, Ringvold A, Petrovski G, Moe MC, Collins A, Nicolaissen B. Levels of oxidative DNA damage are low in ex vivo engineered human limbal epithelial tissue. Acta Ophthalmol 2018; 96:834-840. [PMID: 30239138 PMCID: PMC6667899 DOI: 10.1111/aos.13811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Accepted: 04/05/2018] [Indexed: 11/21/2022]
Abstract
PURPOSE To examine levels of oxidative DNA base damage and expression of selected genes and proteins related to DNA damage repair in human limbal epithelium engineered ex vivo. METHODS Cells were expanded from limbal tissue on cell culture-treated inserts in medium containing fetal bovine serum, recombinant growth factors, hormones and cholera toxin (COM) and in medium with human serum as the single growth-promoting additive (HS). Cells were analysed after two, three and four weeks in culture for DNA strand breaks and oxidized purine bases (Comet assay using the enzyme formamidopyrimidine DNA glycosylase, Fpg) and for expression of DNA repair enzymes APE1, OGG1 and Polβ by in situ hybridization (ISH) and by immunohistochemistry (IHC). RESULTS Levels of strand breaks were substantial while levels of net Fpg-sensitive sites (8-oxoguanine and ring-opened FaPy bases) were relatively low in cells engineered in COM and in HS. Both types of medium were found to support expression of base excision repair (BER) enzymes APE1, OGG1 and Polβ at the gene level. At the protein level, expression of APE1 and OGG1 was noticeable in both conditions while expression of Polβ was low. CONCLUSION Our findings indicate low levels of oxidative stress and/or efficient DNA purine base damage repair in human limbal epithelium engineered in a medium with human serum as the single growth-promoting additive as well as in traditional medium with xenobiotics.
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Affiliation(s)
- Yolanda Lorenzo
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
| | - Kristiane Haug Berg
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
| | - Amund Ringvold
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
| | - Goran Petrovski
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
| | - Morten C. Moe
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
| | - Andrew Collins
- Department of NutritionInstitute for Basic Medical SciencesUniversity of OsloOsloNorway
| | - Bjørn Nicolaissen
- Center for Eye ResearchDepartment of OphthalmologyOslo University HospitalOsloNorway
- Faculty of MedicineUniversity of OsloOsloNorway
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18
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Affiliation(s)
- Akihiro Higuchi
- Institute for Research Promotion, Oita University, Oita, Japan
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19
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Autologous fibrin scaffolds: When platelet- and plasma-derived biomolecules meet fibrin. Biomaterials 2018; 192:440-460. [PMID: 30500725 DOI: 10.1016/j.biomaterials.2018.11.029] [Citation(s) in RCA: 65] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2018] [Revised: 11/08/2018] [Accepted: 11/20/2018] [Indexed: 02/06/2023]
Abstract
The healing of vascularized mammalian tissue injuries initiate with hemostasis and clotting as part of biological defense system leading to the formation of a fibrin clot in which activated platelets are trapped to quickly stop bleeding and destroy microbials. In order to harness the therapeutic potential of biomolecules secreted by platelets and stemmed from plasma, blood deconstruction has allowed to yield autologous platelet-and plasma-derived protein fibrin scaffold. The autologous growth factors and microparticles stemmed from platelets and plasma, interact with fibrin, extracellular matrix, and tissue cells in a combinatorial, synergistic, and multidirectional way on mechanisms governing tissue repair. This interplay will induce a wide range of cell specifications during inflammation and repair process including but not limited to fibrogenesis, angiogenesis, and immunomodulation. As biology-as-a-drug approach, autologous platelet-and plasma-derived protein fibrin scaffold is emerging as a safe and efficacious natural human-engineered growth factor delivery system to repair musculoskeletal tissues, and skin and corneal ulcers and burns. In doing so, it acts as therapeutic agent not perfect but close to biological precision. However, this autologous, biocompatible, biodegradable, and long in vivo lasting strategy faces several challenges, including its non-conventional single dose-response effect, the lack of standardization in its preparation and application, and the patient's biological features. In this review, we give an account of the main events of tissue repair. Then, we describe the procedure to prepare autologous platelet-and plasma-derived protein fibrin scaffolds, and the rationale behind these biomaterials, and finally, we highlight the significance of strategic accuracy in their application.
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20
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Rushton JO, Kammergruber E, Tichy A, Egerbacher M, Nell B, Gabner S. Effects of three blood derived products on equine corneal cells, an in vitro study. Equine Vet J 2017; 50:356-362. [PMID: 29044680 DOI: 10.1111/evj.12770] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Accepted: 10/11/2017] [Indexed: 12/01/2022]
Abstract
BACKGROUND Despite advances in therapy of corneal ulcerative diseases in horses, a vast number of cases require surgical intervention, due to poor response to treatment. Topical application of serum has been used for many years, based on its anticollagenolytic properties and the presence of growth factors promoting corneal wound healing. However, although other blood derived products i.e. platelet rich plasma (PRP), plasma rich in growth factors (PRGF) have been widely used in equine orthopaedics and in human ophthalmology, no reports of the effects of these blood derived products exist in equine ophthalmology. OBJECTIVES To determine in vitro effects of PRGF and PRP on equine corneal cells compared with serum. STUDY DESIGN Prospective controlled cohort study. METHODS Blood from 35 healthy horses was used to produce serum, PRGF (Endoret® ), and PRP (E-PET™). Limbal- and stromal cells were isolated from healthy corneas of six horses and treated with 20% serum, 20% PRGF or 20% PRP. Proliferation rates and migration capacity were analysed in single cell cultures as well as co-culture systems. RESULTS Cell proliferation increased with PRP treatment, remained constant in PRGF treated cells, and declined upon serum treatment over a period of 48 h. Migration capacity was significantly enhanced with PRP treatment, compared with PRGF treatment. Intact leucocytes, mainly eosinophils, were only detected in PRP. MAIN LIMITATIONS Due to the study design use of autologous blood products on corneal cells was not possible. CONCLUSIONS The results demonstrate beneficial effects of PRP on proliferation as well as migration capacity of equine corneal cells in vitro. In vivo studies are warranted to determine further beneficial effects of PRP in horses with corneal ulcers.
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Affiliation(s)
- J O Rushton
- Department of Companion Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - E Kammergruber
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine, Vienna, Austria
| | - A Tichy
- Department for Biomedical Sciences, University of Veterinary Medicine Vienna, Vienna, Austria
| | - M Egerbacher
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine, Vienna, Austria
| | - B Nell
- Department of Companion Animals and Horses, University of Veterinary Medicine, Vienna, Austria
| | - S Gabner
- Institute of Anatomy, Histology and Embryology, University of Veterinary Medicine, Vienna, Austria
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