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Solomevich SO, Oranges CM, Kalbermatten DF, Schwendeman A, Madduri S. Natural polysaccharides and their derivatives as potential medical materials and drug delivery systems for the treatment of peripheral nerve injuries. Carbohydr Polym 2023; 315:120934. [PMID: 37230605 DOI: 10.1016/j.carbpol.2023.120934] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2023] [Revised: 04/07/2023] [Accepted: 04/17/2023] [Indexed: 05/27/2023]
Abstract
Peripheral nerve repair following injury is one of the most serious problems in neurosurgery. Clinical outcomes are often unsatisfactory and associated with a huge socioeconomic burden. Several studies have revealed the great potential of biodegradable polysaccharides for improving nerve regeneration. We review here the promising therapeutic strategies involving different types of polysaccharides and their bio-active composites for promoting nerve regeneration. Within this context, polysaccharide materials widely used for nerve repair in different forms are highlighted, including nerve guidance conduits, hydrogels, nanofibers and films. While nerve guidance conduits and hydrogels were used as main structural scaffolds, the other forms including nanofibers and films were generally used as additional supporting materials. We also discuss the issues of ease of therapeutic implementation, drug release properties and therapeutic outcomes, together with potential future directions of research.
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Affiliation(s)
- Sergey O Solomevich
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA; Research Institute for Physical Chemical Problems of the Belarusian State University, Minsk, Belarus
| | - Carlo M Oranges
- Plastic, Reconstructive and Aesthetic Surgery Division, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Daniel F Kalbermatten
- Plastic, Reconstructive and Aesthetic Surgery Division, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Bioengineering and Neuroregeneration Laboratory, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland
| | - Anna Schwendeman
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Michigan, Ann Arbor, MI, USA; Biointerfaces Institute, University of Michigan, Ann Arbor, MI, USA
| | - Srinivas Madduri
- Plastic, Reconstructive and Aesthetic Surgery Division, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland; Bioengineering and Neuroregeneration Laboratory, Department of Surgery, Geneva University Hospitals and University of Geneva, Geneva, Switzerland.
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Gyenes A, Tapasztó Z, Quirce S, Luna C, Frutos-Rincón L, Gallar J, Acosta MC, Kovács I. Cyclosporine A Decreases Dryness-Induced Hyperexcitability of Corneal Cold-Sensitive Nerve Terminals. Int J Mol Sci 2023; 24:13025. [PMID: 37629206 PMCID: PMC10455570 DOI: 10.3390/ijms241613025] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 08/09/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023] Open
Abstract
Cyclosporine A (CsA) is used for the treatment of dry eye (DE) with good clinical results, improving tear secretion and decreasing subjective symptoms. These effects are attributed to the improved tear film dynamics, but there are no data on the effect of CsA on the abnormal sensory nerve activity characteristic in DE. Our purpose was to evaluate the CsA effect on the enhanced activity of corneal cold thermoreceptors in a tear-deficient DE animal model using in vitro extracellular recording of cold thermoreceptors nerve terminal impulses (NTIs) before and in the presence of CsA. NTI shape was also analyzed. Blinking frequency and tearing rate were also measured in awake animals before and after topical CsA. CsA increased the tearing and blinking of treated animals. CsA significantly decreased the peak response to cold of cold thermoreceptors. Neither their spontaneous NTIs discharge rate nor their cooling threshold were modified. CsA also seemed to reverse some of the changes in NTI shape induced by tear deficiency. These data suggest that, at least in part, the beneficial clinical effects of CsA in DE can be attributed to a direct effect on sensory nerve endings, although the precise mechanisms underlying this effect need further studies to be fully clarified.
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Affiliation(s)
- Andrea Gyenes
- Department of Ophthalmology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary
| | - Zsófia Tapasztó
- Department of Ophthalmology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary
| | - Susana Quirce
- Instituto de Neurociencias, Universidad Miguel Hernández—CSIC, 03550 San Juan de Alicante, Spain (C.L.); (L.F.-R.); (M.C.A.)
| | - Carolina Luna
- Instituto de Neurociencias, Universidad Miguel Hernández—CSIC, 03550 San Juan de Alicante, Spain (C.L.); (L.F.-R.); (M.C.A.)
| | - Laura Frutos-Rincón
- Instituto de Neurociencias, Universidad Miguel Hernández—CSIC, 03550 San Juan de Alicante, Spain (C.L.); (L.F.-R.); (M.C.A.)
- Instituto de Investigación Sanitaria y Biomédica de Alicante-ISABIAL, 03010 Alicante, Spain
| | - Juana Gallar
- Instituto de Neurociencias, Universidad Miguel Hernández—CSIC, 03550 San Juan de Alicante, Spain (C.L.); (L.F.-R.); (M.C.A.)
- Instituto de Investigación Sanitaria y Biomédica de Alicante-ISABIAL, 03010 Alicante, Spain
| | - M. Carmen Acosta
- Instituto de Neurociencias, Universidad Miguel Hernández—CSIC, 03550 San Juan de Alicante, Spain (C.L.); (L.F.-R.); (M.C.A.)
| | - Illés Kovács
- Department of Ophthalmology, Faculty of Medicine, Semmelweis University, 1085 Budapest, Hungary
- Department of Ophthalmology, Weill Cornell Medical College, New York, NY 10021, USA
- Department of Clinical Ophthalmology, Faculty of Health Sciences, Semmelweis University, 1088 Budapest, Hungary
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