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Alcalde I, Sánchez-Fernández C, Martín C, De Pablo N, Jemni-Damer N, Guinea GV, Merayo-Lloves J, Del Olmo-Aguado S. Human Stem Cell Transplantation for Retinal Degenerative Diseases: Where Are We Now? MEDICINA (KAUNAS, LITHUANIA) 2022; 58:102. [PMID: 35056410 PMCID: PMC8781134 DOI: 10.3390/medicina58010102] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2021] [Revised: 12/30/2021] [Accepted: 01/05/2022] [Indexed: 06/14/2023]
Abstract
Background and Objectives: Irreversible visual impairment is mainly caused by retinal degenerative diseases such as age-related macular degeneration and retinitis pigmentosa. Stem cell research has experienced rapid progress in recent years, and researchers and clinical ophthalmologists are trying to implement this promising technology to treat retinal degeneration. The objective of this systematic review is to analyze currently available data from clinical trials applying stem cells to treat human retinal diseases. Materials and Methods: We performed a systematic literature search in PubMed to identify articles related with stem cell therapies to retinal diseases published prior to September 2021. Furthermore, a systematic search in ClinicalTrials (NIH U.S. National Library of Medicine) was performed to identify clinical trials using stem cells to treat retinal diseases. A descriptive analysis of status, conditions, phases, interventions, and outcomes is presented here. Conclusions: To date, no available therapy based on stem cell transplantation is approved for use with patients. However, numerous clinical trials are currently finishing their initial phases and, in general, the outcomes related to implantation techniques and their long-term safety seem promising. In the next few years, we expect to see quantifiable results pertaining to visual function improvement.
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Affiliation(s)
- Ignacio Alcalde
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Cristina Sánchez-Fernández
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Carla Martín
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
- Department of Functional Biology, University of Oviedo, 33006 Oviedo, Spain
| | - Nagore De Pablo
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Nahla Jemni-Damer
- Neuro-Computing and Neuro-Robotics Research Group, Complutense University of Madrid, 28040 Madrid, Spain;
- Innovation Group, Institute for Health Research San Carlos Clinical Hospital (IdISSC), 28040 Madrid, Spain
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid, 28223 Madrid, Spain;
| | - Gustavo V. Guinea
- Center for Biomedical Technology (CTB), Universidad Politécnica de Madrid, 28223 Madrid, Spain;
- Departamento de Ciencia de Materiales, ETSI Caminos, Canales y Puertos, Universidad Politécnica de Madrid, 28040 Madrid, Spain
- Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN). 28040 Madrid, Spain
- Biomaterials and Regenerative Medicine Group, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain
| | - Jesús Merayo-Lloves
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
| | - Susana Del Olmo-Aguado
- Instituto Universitario Fernández-Vega, Fundación de Investigación Oftalmológica, Universidad de Oviedo, 33012 Oviedo, Spain; (C.S.-F.); (C.M.); (N.D.P.); (J.M.-L.); (S.D.O.-A.)
- Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), 33011 Oviedo, Spain
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Fritzsch B, Elliott KL, Pavlinkova G. Primary sensory map formations reflect unique needs and molecular cues specific to each sensory system. F1000Res 2019; 8:F1000 Faculty Rev-345. [PMID: 30984379 PMCID: PMC6439788 DOI: 10.12688/f1000research.17717.1] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 03/21/2019] [Indexed: 12/21/2022] Open
Abstract
Interaction with the world around us requires extracting meaningful signals to guide behavior. Each of the six mammalian senses (olfaction, vision, somatosensation, hearing, balance, and taste) has a unique primary map that extracts sense-specific information. Sensory systems in the periphery and their target neurons in the central nervous system develop independently and must develop specific connections for proper sensory processing. In addition, the regulation of sensory map formation is independent of and prior to central target neuronal development in several maps. This review provides an overview of the current level of understanding of primary map formation of the six mammalian senses. Cell cycle exit, combined with incompletely understood molecules and their regulation, provides chemoaffinity-mediated primary maps that are further refined by activity. The interplay between cell cycle exit, molecular guidance, and activity-mediated refinement is the basis of dominance stripes after redundant organ transplantations in the visual and balance system. A more advanced level of understanding of primary map formation could benefit ongoing restoration attempts of impaired senses by guiding proper functional connection formations of restored sensory organs with their central nervous system targets.
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Affiliation(s)
- Bernd Fritzsch
- Department of Biology, University of Iowa, Iowa City, USA
| | | | - Gabriela Pavlinkova
- Institute of Biotechnology of the Czech Academy of Sciences, Vestec, Czech Republic
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