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Gopal R, Md Shakhih MF, Sahalan M, Lee TC, Hermawan H, Sivalingam S, Kadiman S, Saidin S. Immobilization of blood coagulant factor VII on polycaprolactone membrane through polydopamine grafting. Colloids Surf B Biointerfaces 2023; 228:113390. [PMID: 37315506 DOI: 10.1016/j.colsurfb.2023.113390] [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: 03/22/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/16/2023]
Abstract
Postoperative bleeding following cardiac surgeries is still an issue that deranges the medical resources and cost. The oral and injection administrations of blood coagulation protein, Factor VII (FVII), is effective to stop the bleeding. However, its short half-life has limited the effectiveness of this treatment and frequent FVII intake may distress the patients. Instead, incorporating FVII into synthetic biodegradable polymers such as polycaprolactone (PCL) that is commonly used in drug delivery applications should provide a solution. Therefore, this study aimed to immobilize FVII on PCL membranes through a cross-linkage polydopamine (PDA) grafting as an intermediate layer. These membranes are intended to provide a solution for cardiac bleeding in coagulating blood and sealing the sutured region. The membranes were evaluated in terms of its physio-chemical properties, thermal behavior, FVII release profile and biocompatibility properties. The ATR-FTIR was used to analyze the chemical functionalities of the membranes. Further validation was done with XPS where the appearances of 0.45 ± 0.06% sulfur composition and C-S peak have confirmed the immobilization of FVII on the PCL membranes. The cross-linked FVIIs were viewed in spherical immobilization on the PCL membranes with a size range between 30 and 210 nm. The surface roughness and hydrophilicity of the membranes were enhanced with a slight shift of melting temperature. The PCL-PDA-FVII0.03 and PCL-PDA-FVII0.05 membranes, with wide area of FVII immobilization released approximately only 22% of FVII into the solution within 60 days period and, it is found that the PCL-PDA-FVIIx membranes projected the Higuchi release model with non-Fickian anomalous transport. While the cytotoxic and hemocompatibility analyses showed advance cell viability, identical coagulation time and low hemolysis ratio on the PCL-PDA-FVIIx membranes. The erythrocytes were viewed in polyhedrocyte coagulated structure under SEM visualization. These results validate the biocompatibility of the membranes and its ability to prolong blood coagulation, thus highlighting its potential application as cardiac bleeding sealant.
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Affiliation(s)
- Rathosivan Gopal
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Muhammad Faiz Md Shakhih
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Mariaulpa Sahalan
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia
| | - Te Chuan Lee
- Department of Production and Operation Management, Faculty of Technology Management and Business, Universiti Tun Hussein Onn Malaysia, Parit Raja 86400, Batu Pahat, Johor, Malaysia
| | - Hendra Hermawan
- Department of Mining, Metallurgical and Materials Engineering, Laval University, Quebec City G1V 0A6, Canada
| | - Sivakumar Sivalingam
- Department of Cardiothoracic Surgery, Institut Jantung Negara, 145 Jalan Tun Razak, 50400 Kuala Lumpur, Malaysia
| | - Suhaini Kadiman
- Department of Clinical Research, Institut Jantung Negara, 145 Jalan Tun Razak, 50400 Kuala Lumpur, Malaysia
| | - Syafiqah Saidin
- Department of Biomedical Engineering and Health Sciences, Faculty of Electrical Engineering Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia; IJN-UTM Cardiovascular Engineering Centre, Institute of Human Centered Engineering, Universiti Teknologi Malaysia, 81310 UTM Johor Bahru, Johor, Malaysia.
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2
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Advances in cell coculture membranes recapitulating in vivo microenvironments. Trends Biotechnol 2023; 41:214-227. [PMID: 36030108 DOI: 10.1016/j.tibtech.2022.07.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2022] [Revised: 07/05/2022] [Accepted: 07/25/2022] [Indexed: 01/24/2023]
Abstract
Porous membranes play a critical role in in vitro heterogeneous cell coculture systems because they recapitulate the in vivo microenvironment to mediate physical and biochemical crosstalk between cells. While the conventionally available Transwell® system has been widely used for heterogeneous cell coculture, there are drawbacks to precise control over cell-cell interactions and separation for implantation. The size and numbers of the pores and the thickness of the porous membranes are crucial in determining the efficiency of paracrine signaling and direct junctions between cocultured cells, and significantly impact on the performance of heterogeneous cell cultures. These opportunities and challenges have motivated the design of advanced coculture platforms through improvement of the structural and functional properties of porous membranes.
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Kim J, Kong JS, Kim H, Jo Y, Cho DW, Jang J. A Bioprinted Bruch's Membrane for Modeling Smoke-Induced Retinal Pigment Epithelium Degeneration via Hybrid Membrane Printing Technology. Adv Healthc Mater 2022; 11:e2200728. [PMID: 35841587 DOI: 10.1002/adhm.202200728] [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: 04/02/2022] [Revised: 06/17/2022] [Indexed: 01/28/2023]
Abstract
The retinal pigment epithelium (RPE) not only forms the outer blood-retinal barrier (oBRB) but also plays a multifunctional role in the ocular system. The loss of this epithelium leads to serious diseases resulting in vision impairment. No effective treatment is available for the repair of RPE damage. A functional in vitro RPE model that allows the recapitulation of oBRB-related pathophysiological responses is lacking. Here, a hybrid membrane printing technology is developed to fabricate cellular monolayers on the basement membrane to mimic human Bruch's membrane (BM). Using this technology, in vitro oBRB model containing the RPE monolayer on the printed BM with stable mechanical properties and fibril diameter similar to that of natural BM is developed. Compared to traditional collagen bioink, BM-based bioink significantly promotes RPE functions in vitro. Finally, smoking-like conditions are exposed to the model to recapitulate the absorption of mainstream cigarette smoke which is known as one of the risk factors for the disease progression. RPE function is damaged due to oxidative stress. Furthermore, the versatility of the model as a drug-testing platform is confirmed by the suppression of oxidative stress via antioxidants. This technology shows potential for fabricating a functional oBRB model that reflects patient conditions.
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Affiliation(s)
- Jongmin Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Jeong Sik Kong
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Hyeonji Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Yeonggwon Jo
- School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea
| | - Dong-Woo Cho
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea.,School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea.,Institute of Convergence Science, Yonsei University, Seoul, 03722, Republic of Korea
| | - Jinah Jang
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea.,School of Interdisciplinary Bioscience and Bioengineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea.,Institute of Convergence Science, Yonsei University, Seoul, 03722, Republic of Korea.,Department of Convergence IT Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Kyungbuk, 37673, Republic of Korea
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Majidnia E, Ahmadian M, Salehi H, Amirpour N. Development of an electrospun poly(ε-caprolactone)/collagen-based human amniotic membrane powder scaffold for culturing retinal pigment epithelial cells. Sci Rep 2022; 12:6469. [PMID: 35440610 PMCID: PMC9018818 DOI: 10.1038/s41598-022-09957-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2021] [Accepted: 03/31/2022] [Indexed: 11/09/2022] Open
Abstract
The common retinal diseases are age-related macular degeneration (AMD) and retinitis pigmentosa (RP). They are usually associated with the dysfunction of retinal pigment epithelial (RPE) cells and degeneration of underlying Bruch’s membrane. The RPE cell transplantation is the most promising therapeutic option to restore lost vision. This study aimed to construct an ultrathin porous fibrous film with properties similar to that of native Bruch’s membrane as carriers for the RPE cells. Human amniotic membrane powder (HAMP)/Polycaprolactone (PCL) scaffolds containing different concentrations of HAMP were fabricated by electrospinning technique. The results showed that with increasing the concentration of HAMP, the diameter of fibers increased. Moreover, hydrophilicity and degradation rate were improved from 119° to 92° and 14 to 56% after 28 days immersion in phosphate-buffered saline (PBS) solution, respectively. All scaffolds had a porosity above 85%. Proper cell adhesion was obtained one day after culture and no toxicity was observed. However, after seven days, the rate of growth and proliferation of ARPE-19 cells, a culture model of RPE, on the PCL-30HAMP scaffold (HAMP concentration in PCL 7.2% by weight) was higher compared to other scaffolds. These results indicated that PCL-30HAMP fibrous scaffold has a great potential to be used in retinal tissue engineering applications.
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Affiliation(s)
- Elahe Majidnia
- Department of Materials Engineering, Isfahan University of Technology, 84156-83111, Isfahan, Iran
| | - Mehdi Ahmadian
- Department of Materials Engineering, Isfahan University of Technology, 84156-83111, Isfahan, Iran.
| | - Hossein Salehi
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
| | - Noushin Amirpour
- Department of Anatomical Sciences, School of Medicine, Isfahan University of Medical Sciences, 81746-73461, Isfahan, Iran
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Abstract
Abstract
The rapid development of nanotechnology paved the way for further expansion of polymer chemistry and the fabrication of advanced polymeric membranes. Such modifications allowed enhancing or adding some unique properties, including mechanical strength, excellent biocompatibility, easily controlled degradability, and biological activity. This chapter discusses various applications of polymeric membranes in three significant areas of biomedicine, including tissue engineering, drug delivery systems, and diagnostics. It is intended to highlight here possible ways of improvement the properties of polymeric membranes, by modifying with other polymers, functional groups, compounds, drugs, bioactive components, and nanomaterials.
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Affiliation(s)
- Marta J. Woźniak-Budych
- NanoBioMedical Centre , Adam Mickiewicz University , Wszechnicy Piastowskiej 3 , Poznań 61-614 , Poland
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6
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3D bioprinting in tissue engineering and regenerative medicine. Cell Tissue Bank 2021; 23:199-212. [PMID: 34021839 DOI: 10.1007/s10561-021-09936-6] [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: 04/07/2021] [Accepted: 05/14/2021] [Indexed: 10/21/2022]
Abstract
This review paper is primarily focused on bioprinting technology for biomedical applications. Bioprinting can be utilized for fabrication of wide range of tissue, based on which this chapter describes in detail its application in tissue regeneration. Further, the difficulties and potential in developing a construct for tissue regeneration are discussed herein. In this review paper, application of 3D bioprinting in tissue regeneration will be discussed in depth.
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Khodamoradi M, Eskandari M, Keshvari H, Zarei R. An electro-conductive hybrid scaffold as an artificial Bruch's membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2021; 126:112180. [PMID: 34082980 DOI: 10.1016/j.msec.2021.112180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/04/2021] [Accepted: 05/07/2021] [Indexed: 11/29/2022]
Abstract
Many research groups have investigated the various kinds of scaffolds to mimic the natural Bruch's membrane (BM) and support the retinal pigmented epithelial cells to form an organized cellular monolayer. While using prosthetic BM is identified as a promising treatment of age-related macular degeneration (AMD), a degenerative and progressive retinal disease, the effects of different signals such as electrical and morphological cues on the retinal pigmented epithelial (RPE) cells are still unknown. In this study, a laminated and conductive hydrogel/fiber composite scaffold by adding conductive polyaniline (PANi) to the scaffold's nanofibrous phase was prepared. This hybrid scaffold offers the closest morphology to the native structure of the human Bruch's membrane by imitating the inner and outer collagenous layer and induces the electrical signal to the scaffold to assess the electrical cue on behaviors of polarized retinal pigmented epithelial cells in the retina. The electrospun nanofibrous phase consisted of gelatin-Polyaniline in different ratios incorporated into the hydrogel precursor, a blend of gelatin and 4-armed PEG. We used a novel dual crosslinking process by incorporating the exposure of gamma irradiation and glutaraldehyde vapor treatment to construct the scaffold's hydrogel phase. The results showed the best composition was the sample which included the 40/60, Polyaniline/gelatin nanofiber sheets ratio because this scaffold revealed a 2.66 ± 0.33 MPa, Young's modulus and 1.84 ± 0.21 S/cm, electrochemical conductivity, which are close to the main features of native Bruch's membrane. In addition, this scaffold showed good biocompatibility by reaching 83.47% cell viability.
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Affiliation(s)
- Maedeh Khodamoradi
- Biomedical Engineering Faculty, Amirkabir University of Technology, Tehran, Iran
| | - Mahnaz Eskandari
- Biomedical Engineering Faculty, Amirkabir University of Technology, Tehran, Iran.
| | - Hamid Keshvari
- Biomedical Engineering Faculty, Amirkabir University of Technology, Tehran, Iran
| | - Reza Zarei
- Farabi Eye Hospital, Eye Research Center, Tehran University of Medical Science, Tehran, Iran
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8
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The Evolution of Fabrication Methods in Human Retina Regeneration. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11094102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Optic nerve and retinal diseases such as age-related macular degeneration and inherited retinal dystrophies (IRDs) often cause permanent sight loss. Currently, a limited number of retinal diseases can be treated. Hence, new strategies are needed. Regenerative medicine and especially tissue engineering have recently emerged as promising alternatives to repair retinal degeneration and recover vision. Here, we provide an overview of retinal anatomy and diseases and a comprehensive review of retinal regeneration approaches. In the first part of the review, we present scaffold-free approaches such as gene therapy and cell sheet technology while in the second part, we focus on fabrication techniques to produce a retinal scaffold with a particular emphasis on recent trends and advances in fabrication techniques. To this end, the use of electrospinning, 3D bioprinting and lithography in retinal regeneration was explored.
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9
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Bagewadi S, Parameswaran S, Krishnakumar S, Sethuraman S, Subramanian A. Tissue engineering approaches towards the regeneration of biomimetic scaffolds for age-related macular degeneration. J Mater Chem B 2021; 9:5935-5953. [PMID: 34254105 DOI: 10.1039/d1tb00976a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Age-related macular degeneration (AMD) is the third major cause of blindness in people aged above 60 years. It causes dysfunction of the retinal pigment epithelium (RPE) and leads to an irreversible loss of central vision. The present clinical treatment options are more palliative in controlling the progression of the disease and do not functionally restore the degenerated RPE monolayer and photoreceptors. Currently, the clinical transplantation of RPE cells has shown poor engraftment potential due to the absence of an intact Bruch's membrane in AMD patients, thereby the vision is unable to be restored completely. Although tissue engineering strategies target the development of Bruch's membrane-mimetic substrates, the challenge still lies in the development of an ultrathin, biologically and mechanically equivalent membrane to restore visual acuity. Further, existing limitations such as cellular aggregation, surgical complications including retinal tissue damage, tissue rejection, disease transmission, inferior mechanical strength, and the loss of vision over time demand the search for an ideal strategy to restore the functional RPE. Hence, this review aims to provide insights into various approaches, from conventional cell therapy to 3D bioprinting, and their unmet challenges in treating AMD by outlining the pathophysiology of AMD and the host tissue response with respect to injury, treatment and preclinical animal models.
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Affiliation(s)
- Shambhavi Bagewadi
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Sowmya Parameswaran
- Radheshyam Kanoi Stem Cell Laboratory, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology Vision Research Foundation, Chennai, India
| | - Subramanian Krishnakumar
- Radheshyam Kanoi Stem Cell Laboratory, Kamalnayan Bajaj Institute for Research in Vision and Ophthalmology Vision Research Foundation, Chennai, India
| | - Swaminathan Sethuraman
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
| | - Anuradha Subramanian
- Tissue Engineering & Additive Manufacturing (TEAM) Lab, Centre for Nanotechnology & Advanced Biomaterials, ABCDE Innovation Centre, School of Chemical & Biotechnology, SASTRA Deemed University, Thanjavur 613 401, Tamil Nadu, India.
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10
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Hoehne JL, Carlstron R, Dernorwsek J, Cristovam PC, Bachiega HL, Abensur SI, Schor P. Piezoelectric 3D bioprinting for ophthalmological applications: process development and viability analysis of the technology. Biomed Phys Eng Express 2020; 6:035021. [PMID: 33438666 DOI: 10.1088/2057-1976/ab7bf9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Piezoelectric inkjet 3D bioprinting technology is a viable technique for ophthalmological applications. It provides versatility, high sensibility and accuracy, required in ophthalmological procedures. A process flow for biofabrication was described in detail and validated, using piezoelectric inkjet technology, for ophthalmological applications, in vitro and in situ, based on complex images. Ophthalmological problems were documented by diagnostic examinations and were fed to the flow as complex images. The Concept Mapping methodology and the Conceptual Design approach were utilized to elaborate the 3D bioprinting process flow. It was developed a bioink with corneal epithelial cells. To simulate an in situ bioprinting process, eyes of pigs were selected as the substrate to print the cells. Print scripts used the digitally treated images. In order to print on predefined locations, alignment devices and sample holders were built. The proposed process flow has shown to be a potential tool for the biofabrication of ophthalmological solutions.
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Affiliation(s)
- Juliana Lopes Hoehne
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Regina Carlstron
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Janaína Dernorwsek
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil.,Renato Archer Information Technology Centre (CTI), Campinas, SP, Brazil
| | - Priscila Cardoso Cristovam
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Helder Luiz Bachiega
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Silvia Itzcovici Abensur
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
| | - Paulo Schor
- Department of Ophthalmology and Visual Science, Escola Paulista de Medicina (Sao Paulo School of Medicine), Federal University of Sao Paulo, Sao Paulo, SP, Brazil
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11
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Murphy AR, Truong YB, O'Brien CM, Glattauer V. Bio-inspired human in vitro outer retinal models: Bruch's membrane and its cellular interactions. Acta Biomater 2020; 104:1-16. [PMID: 31945506 DOI: 10.1016/j.actbio.2020.01.013] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 01/07/2020] [Accepted: 01/09/2020] [Indexed: 12/17/2022]
Abstract
Retinal degenerative disorders, such as age-related macular degeneration (AMD), are one of the leading causes of blindness worldwide, however, treatments to completely stop the progression of these debilitating conditions are non-existent. Researchers require sophisticated models that can accurately represent the native structure of human retinal tissue to study these disorders. Current in vitro models used to study the retina are limited in their ability to fully recapitulate the structure and function of the retina, Bruch's membrane and the underlying choroid. Recent developments in the field of induced pluripotent stem cell technology has demonstrated the capability of retinal pigment epithelial cells to recapitulate AMD-like pathology. However, such studies utilise unsophisticated, bio-inert membranes to act as Bruch's membrane and support iPSC-derived retinal cells. This review presents a concise summary of the properties and function of the Bruch's membrane-retinal pigment epithelium complex, the initial pathogenic site of AMD as well as the current status for materials and fabrication approaches used to generate in vitro models of this complex tissue. Finally, this review explores required advances in the field of in vitro retinal modelling. STATEMENT OF SIGNIFICANCE: Retinal degenerative disorders such as age-related macular degeneration are worldwide leading causes of blindness. Previous attempts to model the Bruch's membrane-retinal pigment epithelial complex, the initial pathogenic site of age-related macular degeneration, have lacked the sophistication to elucidate valuable insights into disease mechanisms. Here we provide a detailed account of the morphological, physical and chemical properties of Bruch's membrane which may aid the fabrication of more sophisticated and physiologically accurate in vitro models of the retina, as well as various fabrication techniques to recreate this structure. This review also further highlights some recent advances in some additional challenging aspects of retinal tissue modelling including integrated fluid flow and photoreceptor alignment.
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Affiliation(s)
- Ashley R Murphy
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia.
| | - Yen B Truong
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia
| | - Carmel M O'Brien
- CSIRO Manufacturing, Research Way, Clayton, VIC 3168, Australia; Australian Regenerative Medicine Institute, Science, Technology, Research and Innovation Precinct (STRIP), Monash University, Clayton Campus, Wellington Road, Clayton, VIC 3800, Australia
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12
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Krishna L, Nilawar S, Ponnalagu M, Subramani M, Jayadev C, Shetty R, Chatterjee K, Das D. Fiber Diameter Differentially Regulates Function of Retinal Pigment and Corneal Epithelial Cells on Nanofibrous Tissue Scaffolds. ACS APPLIED BIO MATERIALS 2020; 3:823-837. [DOI: 10.1021/acsabm.9b00897] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lekshmi Krishna
- Stem Cell Research Laboratory, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore 560 099, Karnataka, India
- School of Biosciences and Technology, Vellore Institute of Technology, Vellore 632 014, Tamil Nadu, India
| | - Sagar Nilawar
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560 012, Karnataka, India
| | - Murugeswari Ponnalagu
- Stem Cell Research Laboratory, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore 560 099, Karnataka, India
| | - Murali Subramani
- Stem Cell Research Laboratory, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore 560 099, Karnataka, India
| | - Chaitra Jayadev
- Vitreoretina Services, Narayana Nethralaya Eye Hospital, Bangalore 560 010, Karnataka, India
| | - Rohit Shetty
- Department of Cornea and Refractive Surgery, Narayana Nethralaya Eye Hospital, Bangalore 560 010, Karnataka, India
| | - Kaushik Chatterjee
- Department of Materials Engineering, Indian Institute of Science, Bangalore 560 012, Karnataka, India
| | - Debashish Das
- Stem Cell Research Laboratory, GROW Laboratory, Narayana Nethralaya Foundation, Narayana Nethralaya, Bangalore 560 099, Karnataka, India
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Kumar P, Ciftci S, Barthes J, Knopf‐Marques H, Muller CB, Debry C, Vrana NE, Ghaemmaghami AM. A composite Gelatin/hyaluronic acid hydrogel as an ECM mimic for developing mesenchymal stem cell‐derived epithelial tissue patches. J Tissue Eng Regen Med 2019; 14:45-57. [DOI: 10.1002/term.2962] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Revised: 07/29/2019] [Accepted: 09/04/2019] [Indexed: 01/12/2023]
Affiliation(s)
- Pramod Kumar
- Immunology and Tissue Modelling Group, School of Life Science, Faculty of Medicine and Health SciencesUniversity of Nottingham Nottingham UK
| | - Sait Ciftci
- INSERM UMR 1121 Strasbourg France
- Service Oto‐Rhino‐LaryngologieHôpitaux Universitaires de Strasbourg Strasbourg France
| | - Julien Barthes
- INSERM UMR 1121 Strasbourg France
- Protip Medical Strasbourg France
| | - Helena Knopf‐Marques
- INSERM UMR 1121 Strasbourg France
- Faculté de Chirurgie DentaireUniversité de Strasbourg Strasbourg France
| | | | - Christian Debry
- INSERM UMR 1121 Strasbourg France
- Service Oto‐Rhino‐LaryngologieHôpitaux Universitaires de Strasbourg Strasbourg France
| | - Nihal E. Vrana
- INSERM UMR 1121 Strasbourg France
- Protip Medical Strasbourg France
| | - Amir M. Ghaemmaghami
- Immunology and Tissue Modelling Group, School of Life Science, Faculty of Medicine and Health SciencesUniversity of Nottingham Nottingham UK
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14
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Park SM, Lee KP, Huh MI, Eom S, Park BU, Kim KH, Park DH, Kim DS, Kim HK. Development of an in vitro 3D choroidal neovascularization model using chemically induced hypoxia through an ultra-thin, free-standing nanofiber membrane. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 104:109964. [PMID: 31499990 DOI: 10.1016/j.msec.2019.109964] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/26/2018] [Revised: 07/05/2019] [Accepted: 07/08/2019] [Indexed: 12/18/2022]
Abstract
Choroidal neovascularization (CNV) is the pathological growth of new blood vessels in the sub-retinal pigment epithelial (RPE) space from the choroid through a break in the Bruch's membrane (BM). Despite its importance in studying biological processes and drug discovery, the development of an in vitro CNV model that achieves the physiological structures of native RPE-BM-choroidal capillaries (CC) is still challenging. Here, we develop a novel 3D RPE-BM-CC complex biomimetic system on an ultra-thin, free-standing nanofiber membrane. The thickness of the pristine nanofiber membrane is 2.17 ± 0.81 μm, and the Matrigel-coated nanofiber membrane attains a permeability coefficient of 2.95 ± 0.25 × 10-6 cm/s by 40 kDa FITC-dextran, which is similar to the physiological value of the native BM. On the in vitro 3D RPE-BM-CC complex system, we demonstrate endothelial cell invasion across the 3D RPE-BM-CC complex and the mechanism of the invasion by imposing a hypoxic condition, which is thought to be the major pathological cause of CNV. Furthermore, alleviation of the invasion is achieved by treating with chrysin and anti-VEGF antibody. Thus, the in vitro 3D RPE-BM-CC complex biomimetic system can recapitulate essential features of the pathophysiological environment and be employed for the screening of drug candidates to reduce the number of costly and time-consuming in vivo tests or clinical trials.
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Affiliation(s)
- Sang Min Park
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Kyoung-Pil Lee
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Man-Il Huh
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Seongsu Eom
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Byeong-Ung Park
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Ki Hean Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea
| | - Dong Ho Park
- Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea
| | - Dong Sung Kim
- Department of Mechanical Engineering, Pohang University of Science and Technology (POSTECH), 77 Cheongam-ro, Nam-gu, Pohang, Gyeongbuk 37673, South Korea.
| | - Hong Kyun Kim
- Bio-Medical Institute, Kyungpook National University Hospital, 807 Hoguk-ro, Buk-gu, Daegu 41404, South Korea; Department of Ophthalmology, School of Medicine, Kyungpook National University, 80 Daehakro, Bukgu, Daegu 41566, South Korea.
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15
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Engineering retinal pigment epithelial cells regeneration for transplantation in regenerative medicine using PEG/Gellan gum hydrogels. Int J Biol Macromol 2019; 130:220-228. [DOI: 10.1016/j.ijbiomac.2019.01.078] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2018] [Revised: 01/16/2019] [Accepted: 01/16/2019] [Indexed: 02/06/2023]
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16
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Siddiqui N, Asawa S, Birru B, Baadhe R, Rao S. PCL-Based Composite Scaffold Matrices for Tissue Engineering Applications. Mol Biotechnol 2019; 60:506-532. [PMID: 29761314 DOI: 10.1007/s12033-018-0084-5] [Citation(s) in RCA: 189] [Impact Index Per Article: 37.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
Abstract
Biomaterial-based scaffolds are important cues in tissue engineering (TE) applications. Recent advances in TE have led to the development of suitable scaffold architecture for various tissue defects. In this narrative review on polycaprolactone (PCL), we have discussed in detail about the synthesis of PCL, various properties and most recent advances of using PCL and PCL blended with either natural or synthetic polymers and ceramic materials for TE applications. Further, various forms of PCL scaffolds such as porous, films and fibrous have been discussed along with the stem cells and their sources employed in various tissue repair strategies. Overall, the present review affords an insight into the properties and applications of PCL in various tissue engineering applications.
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Affiliation(s)
- Nadeem Siddiqui
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Simran Asawa
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Bhaskar Birru
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Ramaraju Baadhe
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India
| | - Sreenivasa Rao
- Stem Cell Research Laboratory, Department of Biotechnology, NIT Warangal, Warangal, Telangana, 506004, India.
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17
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Abedin Zadeh M, Khoder M, Al-Kinani AA, Younes HM, Alany RG. Retinal cell regeneration using tissue engineered polymeric scaffolds. Drug Discov Today 2019; 24:1669-1678. [PMID: 31051266 DOI: 10.1016/j.drudis.2019.04.009] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2018] [Revised: 04/06/2019] [Accepted: 04/25/2019] [Indexed: 12/24/2022]
Abstract
Degenerative retinal diseases, such as age-related macular degeneration (AMD), can lead to permanent sight loss. Although intravitreal anti-vascular endothelial growth factor (VEGF) and steroid injections are effective for the management of early stages of wet and/or neovascular AMD (nAMD), no proven treatments currently exist for dry AMD or for the advanced geographic atrophy of the retina that follows. Tissue engineering (TE) has recently emerged as a promising alternative to repair retinal damaged and restore its functions. Here, we review recent advances in TE, with a particular emphasis on retinal regeneration. We provide an overview of retinal diseases, followed by a comprehensive review of TE techniques, cells, and polymers used in the fabrication of scaffolds for retinal cell regenerations, in particular the retinal pigment epithelium (RPE).
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Affiliation(s)
- Maria Abedin Zadeh
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar
| | - Mouhamad Khoder
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar.
| | - Ali A Al-Kinani
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar
| | - Husam M Younes
- Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar; Office of Vice President for Research & Graduate Studies, Qatar University, Doha, Qatar
| | - Raid G Alany
- Drug Discovery, Delivery and Patient Care (DDDPC) Theme, School of Life Sciences, Pharmacy and Chemistry, Kingston University London, Kingston upon Thames, London, United Kingdom; Pharmaceutics & Polymeric Drug Delivery Research Laboratory, College of Pharmacy, Qatar University, Doha, Qatar; School of Pharmacy, The University of Auckland, Auckland, New Zealand.
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18
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19
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Tan YSE, Shi PJ, Choo CJ, Laude A, Yeong WY. Tissue engineering of retina and Bruch’s membrane: a review of cells, materials and processes. Br J Ophthalmol 2018; 102:1182-1187. [DOI: 10.1136/bjophthalmol-2017-311390] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2017] [Revised: 01/07/2018] [Accepted: 02/03/2018] [Indexed: 11/04/2022]
Abstract
The biological, structural and functional configuration of Bruch’s membrane (BM) is significantly relevant to age-related macular degeneration (AMD) and other chorioretinal diseases, and AMD is one of the leading causes of blindness in the elderly worldwide. The configuration may worsen along with the ageing of retinal pigment epithelium and BM that finally leads to AMD. Thus, the scaffold-based tissue-engineered retina provides an innovative alternative for retinal tissue repair. The cell and material requirements for retinal repair are discussed including cell sheet engineering, decellularised membrane and tissue-engineered membranes. Further, the challenges and potential in realising a whole tissue model construct for retinal regeneration are highlighted herein. This review article provides a framework for future development of tissue-engineered retina as a preclinical model and possible treatments for AMD.
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