1
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Zhu D, Li Y, Zhang J, Chen Y, Song X, Chen W, Wu S, Hou L. Enhanced neuroprotective activity of ophthalmic delivered nerve growth factor conjugated with cell penetrating peptide against optic nerve injury. J Drug Target 2024; 32:93-99. [PMID: 38105766 DOI: 10.1080/1061186x.2023.2295220] [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: 08/16/2023] [Accepted: 12/10/2023] [Indexed: 12/19/2023]
Abstract
Aims: Nerve growth factor is a well characterised neurotrophic factor that play a critical role in the survival, growth and differentiation of neurons both in central and peripheral nervous system. However, it is difficult for the conventional exogenous nerve growth factor administration delivery to the central nervous system due to the biological barrier in human bodies.Results: We validated a series of cell penetrating peptides and found that L-PenetraMax significantly enhanced the efficiency of recombinant human nerve growth factor entry into the rat retina. In the optic nerve crush mice model, eye drop administration of recombinant human nerve growth factor alone promoted retinal ganglion cell survival and axon regeneration at high dose, while the combination of recombinant human nerve growth factor with L-PenetraMax significantly enhanced the neuroprotective efficacy at lower dose, thus potentially enhancing the availability of recombinant human nerve growth factor eye drops in patients with optic neuropathy.Conclusions: This study provides the evidence that the noncovalent coadministration of recombinant human nerve growth factor with L-PenetraMax could be a potent strategy for the non-invasive and sustained ocular delivery of therapeutic proteins for improving the optic nerve injury.
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Affiliation(s)
- Danni Zhu
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Yao Li
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Jinlong Zhang
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Yi Chen
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Xiaohong Song
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Wei Chen
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Shipo Wu
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
| | - Lihua Hou
- Institute of Biotechnology, Academy of Military Sciences, Beijing, China
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2
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Gujar V, Pande RD, Hardas BM, Das S. Nerve Growth Factor Signaling Modulates the Expression of Glutaminase in Dorsal Root Ganglion Neurons during Peripheral Inflammation. Int J Mol Sci 2024; 25:6053. [PMID: 38892241 PMCID: PMC11172420 DOI: 10.3390/ijms25116053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2024] [Revised: 05/28/2024] [Accepted: 05/29/2024] [Indexed: 06/21/2024] Open
Abstract
Glutamate functions as the major excitatory neurotransmitter for primary sensory neurons and has a crucial role in sensitizing peripheral nociceptor terminals producing sensitization. Glutaminase (GLS) is the synthetic enzyme that converts glutamine to glutamate. GLS-immunoreactivity (-ir) and enzyme activity are elevated in dorsal root ganglion (DRG) neuronal cell bodies during chronic peripheral inflammation, but the mechanism for this GLS elevation is yet to be fully characterized. It has been well established that, after nerve growth factor (NGF) binds to its high-affinity receptor tropomyosin receptor kinase A (TrkA), a retrograde signaling endosome is formed. This endosome contains the late endosomal marker Rab7GTPase and is retrogradely transported via axons to the cell soma located in the DRG. This complex is responsible for regulating the transcription of several critical nociceptive genes. Here, we show that this retrograde NGF signaling mediates the expression of GLS in DRG neurons during the process of peripheral inflammation. We disrupted the normal NGF/TrkA signaling in adjuvant-induced arthritic (AIA) Sprague Dawley rats by the pharmacological inhibition of TrkA or blockade of Rab7GTPase, which significantly attenuated the expression of GLS in DRG cell bodies. The results indicate that NGF/TrkA signaling is crucial for the production of glutamate and has a vital role in the development of neurogenic inflammation. In addition, our pain behavioral data suggest that Rab7GTPase can be a potential target for attenuating peripheral inflammatory pain.
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Affiliation(s)
- Vikramsingh Gujar
- Department of Anatomy and Cell Biology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA
| | - Radhika D. Pande
- Department of Biochemistry and Microbiology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA; (R.D.P.); (S.D.)
| | - Bhalchandra M. Hardas
- Department of Electronics Engineering, Shri Ramdeobaba College of Engineering and Management, Nagpur 440013, India;
| | - Subhas Das
- Department of Biochemistry and Microbiology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA; (R.D.P.); (S.D.)
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3
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Gujar V, Pande RD, Das S. Nerve Growth Factor Shows Biphasic Expression during Adjuvant-Induced Neurogenic Inflammation. Int J Mol Sci 2024; 25:4029. [PMID: 38612839 PMCID: PMC11012393 DOI: 10.3390/ijms25074029] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 03/23/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
Chronic inflammatory diseases are considered the most significant cause of death worldwide. Current treatments for inflammatory diseases are limited due to the lack of understanding of the biological factors involved in early-stage disease progression. Nerve growth factor (NGF) is a neurotrophic factor directly associated with inflammatory and autoimmune diseases like osteoarthritis, multiple sclerosis, and rheumatoid arthritis. It has been shown that NGF levels are significantly upregulated at the site of inflammation and play a crucial role in developing a robust inflammatory response. However, little is known about NGF's temporal expression profile during the initial progressive phase of inflammation. This study aimed to determine the temporal expression patterns of NGF in rat skin (epidermis) during adjuvant-induced arthritis (AIA). Sprague Dawley rats were randomly divided into control and complete Freund's adjuvant (CFA)-treated groups. Levels of NGF were evaluated following unilateral AIA at different time points, and it was found that peripheral inflammation due to AIA significantly upregulated the expression of NGF mRNA and protein in a biphasic pattern. These results suggest that NGF signaling is crucial for initiating and maintaining peripheral neurogenic inflammation in rats during AIA.
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Affiliation(s)
- Vikramsingh Gujar
- Department of Anatomy and Cell Biology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA
| | - Radhika D. Pande
- Department of Biochemistry and Microbiology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA; (R.D.P.); (S.D.)
| | - Subhas Das
- Department of Biochemistry and Microbiology, Oklahoma State University, Center for Health Sciences, Tulsa, OK 74107, USA; (R.D.P.); (S.D.)
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4
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Eliav A, Ofri R, Brust K, Kushnir Y, Shilo-Benjamini Y. Improving rat welfare through the development of a peribulbar anaesthesia technique for ophthalmic procedures: A preliminary study. Lab Anim 2024; 58:116-126. [PMID: 37728920 DOI: 10.1177/00236772231178433] [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] [Indexed: 09/22/2023]
Abstract
Rats are a commonly used animal model for the study of the pathogenesis and novel treatments of glaucoma, which is induced experimentally using invasive, painful procedures. Peribulbar anaesthesia (PBA) is frequently used in people and domestic animals prior to ophthalmic surgeries to provide excellent perioperative analgesia. Our goal was to develop a PBA technique adapted to rat anatomy, improving the welfare of animals used as a model for glaucoma. Eighteen rat cadavers (n = 36 eyes) were used to establish the optimal needle insertion location. Five injection techniques using 0.1 mL/100 g lidocaine 2% and a contrast agent (1:1 volume ratio) were compared via computed tomography (CT). CT images were scored for injectate distribution at four locations: extraconal, intraconal, around the optic nerve and at the orbital fissure (scale 0-8, where 0 = none and 8 = excellent). Median scores using the dorso-medial-75° (5; range 2-6) and medial-canthus (4.5; range 2-8) injection techniques were not different from the dorso-medial-45° (4; range 3-6) technique and were higher (better distribution) compared with mid-ventral (3; range 2-5) and ventro-lateral (2; range 1-3) techniques. The two superior techniques were used in two experimental rats (n = 4 eyes) to determine the volume of bupivacaine 0.5% necessary to affect corneal touch threshold (CTT) and periocular skin sensitivity (PSS). A volume of 0.05 mL/100 g decreased CTT and PSS for several hours, while a larger volume produced excessively long effects. Dorso-medial-75° or medial-canthus PBA using 0.05 mL/100 g bupivacaine are likely to provide ocular and periocular analgesia in rats, with minor transient adverse effects.
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Affiliation(s)
- Ady Eliav
- The Authority for Biological and Biomedical Models, The Hebrew University of Jerusalem, Israel
| | - Ron Ofri
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Israel
| | - Kelsey Brust
- Department of Veterinary Surgery and Radiology, School of Veterinary Medicine, University of California, USA
| | - Yishai Kushnir
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Israel
| | - Yael Shilo-Benjamini
- Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, The Hebrew University of Jerusalem, Israel
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Makoudjou MA, Fico E, Rosso P, Triaca V, De Simone L, Rossetti D, Cattani F, Allegretti M, Tirassa P. ProNGF processing in adult rat tissues and bioactivity of NGF prodomain peptides. FEBS Open Bio 2024; 14:643-654. [PMID: 38429912 PMCID: PMC10988682 DOI: 10.1002/2211-5463.13768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2023] [Revised: 11/23/2023] [Accepted: 01/11/2024] [Indexed: 03/03/2024] Open
Abstract
The neurotrophin nerve growth factor (NGF) and its precursor proNGF are both bioactive and exert similar or opposite actions depending on the cell target and its milieu. The balance between NGF and proNGF is crucial for cell and tissue homeostasis and it is considered an indicator of pathological conditions. Proteolytical cleavage of proNGF to the mature form results in different fragments, whose function and/or bioactivity is still unclear. The present study was conducted to investigate the distribution of proNGF fragments derived from endogenous cleavage in brain and peripheral tissues of adult rats in the healthy condition and following inflammatory lipopolysaccharide (LPS) challenge. Different anti-proNGF antibodies were tested and the presence of short peptides corresponding to the prodomain sequence (pdNGFpep) was identified. Processing of proNGF was found to be tissue-specific and accumulation of pdNGFpeps was found in inflamed tissues, mainly in testis, intestine and heart, suggesting a possible correlation between organ functions and a response to insults and/or injury. The bioactivity of pdNGFpep was also demonstrated in vitro by using primary hippocampal neurons. Our study supports a biological function for the NGF precursor prodomain and indicates that short peptides from residues 1-60, differing from the 70-110 sequence, induce apoptosis, thereby opening the way for identification of new molecular targets to study pathological conditions.
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Affiliation(s)
- Marie Anne Makoudjou
- Cellular and Molecular Biology, Department of BiologyUniversity of Rome “Tor Vergata”RomeItaly
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)RomeItaly
| | - Elena Fico
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)RomeItaly
| | - Pamela Rosso
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)RomeItaly
| | - Viviana Triaca
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)Campus A. Buzzati‐Traverso, MonterotondoRomeItaly
| | | | | | | | | | - Paola Tirassa
- Institute of Biochemistry and Cell Biology (IBBC)National Research Council (CNR)RomeItaly
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6
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Bruscolini A, Iannitelli A, Segatto M, Rosso P, Fico E, Buonfiglio M, Lambiase A, Tirassa P. Psycho-Cognitive Profile and NGF and BDNF Levels in Tears and Serum: A Pilot Study in Patients with Graves' Disease. Int J Mol Sci 2023; 24:ijms24098074. [PMID: 37175781 PMCID: PMC10178719 DOI: 10.3390/ijms24098074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2023] [Revised: 04/24/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023] Open
Abstract
Nerve Growth Factor (NGF) and Brain derived Neurotrophic Factor (BDNF) mature/precursor imbalance in tears and serum is suggested as a risk factor and symptomatology aggravation in ophthalmology and neuropsychiatric disturbances. Cognitive and mood alterations are reported by patients with Graves' Orbitopathy (GO), indicating neurotrophin alterations might be involved. To address this question, the expression levels of NGF and BDNF and their precursors in serum and tears of GO patients were analyzed and correlated with the ophthalmological and psycho-cognitive symptoms. Hamilton Rating Scale for Anxiety (HAM-A) and Depression (HAM-D), Temperament and Character Inventory (TCI), and Cambridge Neuropsychological Test Automated Battery (CANTAB) test were used as a score. NGF and BDNF levels were measured using ELISA and Western Blot and statistically analyzed for psychiatric/ocular variable trend association. GO patients show memorization time and level of distraction increase, together with high irritability and impulsiveness. HAM-A and CANTAB variables association, and some TCI dimensions are also found. NGF and BDNF expression correlates with ophthalmological symptoms only in tears, while mature/precursor NGF and BDNF correlate with the specific psycho-cognitive variables both in tears and serum. Our study is the first to show that changes in NGF and BDNF processing in tears and serum might profile ocular and cognitive alterations in patients.
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Affiliation(s)
- Alice Bruscolini
- Department of Sense Organs, University Sapienza of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Angela Iannitelli
- Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, Via Vetoio, Coppito 2, 67100 L'Aquila, Italy
| | - Marco Segatto
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, 86090 Pesche, Italy
| | - Pamela Rosso
- Institute of Biochemistry & Cell Biology (IBBC), National Research Council (CNR), Unit of Translational & Biomolecular Medicine "Rita Levi-Montalcini", Viale dell'Università 33, 00185 Rome, Italy
| | - Elena Fico
- Institute of Biochemistry & Cell Biology (IBBC), National Research Council (CNR), Unit of Translational & Biomolecular Medicine "Rita Levi-Montalcini", Viale dell'Università 33, 00185 Rome, Italy
| | - Marzia Buonfiglio
- Headache Center, Policlinico Umberto I, Sapienza University, Viale dell'Università 33, 00185 Rome, Italy
| | - Alessandro Lambiase
- Department of Sense Organs, University Sapienza of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Paola Tirassa
- Institute of Biochemistry & Cell Biology (IBBC), National Research Council (CNR), Unit of Translational & Biomolecular Medicine "Rita Levi-Montalcini", Viale dell'Università 33, 00185 Rome, Italy
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7
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Fico E, Rosso P, Triaca V, Segatto M, Lambiase A, Tirassa P. NGF Prevents Loss of TrkA/VEGFR2 Cells, and VEGF Isoform Dysregulation in the Retina of Adult Diabetic Rats. Cells 2022; 11:cells11203246. [PMID: 36291113 PMCID: PMC9600509 DOI: 10.3390/cells11203246] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2022] [Revised: 10/07/2022] [Accepted: 10/11/2022] [Indexed: 11/16/2022] Open
Abstract
Among the factors involved in diabetic retinopathy (DR), nerve growth factor (NGF) and vascular endothelial growth factor A (VEGFA) have been shown to affect both neuronal survival and vascular function, suggesting that their crosstalk might influence DR outcomes. To address this question, the administration of eye drops containing NGF (ed-NGF) to adult Sprague Dawley rats receiving streptozotocin (STZ) intraperitoneal injection was used as an experimental paradigm to investigate NGF modulation of VEGFA and its receptor VEGFR2 expression. We show that ed-NGF treatment prevents the histological and vascular alterations in STZ retina, VEGFR2 expression decreased in GCL and INL, and preserved the co-expression of VEGFR2 and NGF-tropomyosin-related kinase A (TrkA) receptor in retinal ganglion cells (RGCs). The WB analysis confirmed the NGF effect on VEGFR2 expression and activation, and showed a recovery of VEGF isoform dysregulation by suppressing STZ-induced VEGFA121 expression. Reduction in inflammatory and pro-apoptotic intracellular signals were also found in STZ+NGF retina. These findings suggest that ed-NGF administration might favor neuroretina protection, and in turn counteract the vascular impairment by regulating VEGFR2 and/or VEGFA isoform expression during the early stages of the disease. The possibility that an increase in the NGF availability might contribute to the switch from the proangiogenic/apoptotic to the neuroprotective action of VEGF is discussed.
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Affiliation(s)
- Elena Fico
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
- Correspondence: (E.F.); (P.T.)
| | - Pamela Rosso
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Viviana Triaca
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), International Campus A. Buzzati Traverso, Via E. Ramarini 32, Monterotondo, 00015 Rome, Italy
| | - Marco Segatto
- Department of Biosciences and Territory, University of Molise, Contrada Fonte Lappone, 86090 Pesche, Italy
| | - Alessandro Lambiase
- Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
| | - Paola Tirassa
- Institute of Biochemistry and Cell Biology, National Research Council (CNR), Department of Sense Organs, Sapienza University of Rome, Viale del Policlinico 155, 00161 Rome, Italy
- Correspondence: (E.F.); (P.T.)
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8
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Ren J, Zhang S, Pan Y, Jin M, Li J, Luo Y, Sun X, Li G. Diabetic retinopathy: Involved cells, biomarkers, and treatments. Front Pharmacol 2022; 13:953691. [PMID: 36016568 PMCID: PMC9396039 DOI: 10.3389/fphar.2022.953691] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 07/06/2022] [Indexed: 11/13/2022] Open
Abstract
Diabetic retinopathy (DR), a leading cause of vision loss and blindness worldwide, is caused by retinal neurovascular unit dysfunction, and its cellular pathology involves at least nine kinds of retinal cells, including photoreceptors, horizontal and bipolar cells, amacrine cells, retinal ganglion cells, glial cells (Müller cells, astrocytes, and microglia), endothelial cells, pericytes, and retinal pigment epithelial cells. Its mechanism is complicated and involves loss of cells, inflammatory factor production, neovascularization, and BRB impairment. However, the mechanism has not been completely elucidated. Drug treatment for DR has been gradually advancing recently. Research on potential drug targets relies upon clear information on pathogenesis and effective biomarkers. Therefore, we reviewed the recent literature on the cellular pathology and the diagnostic and prognostic biomarkers of DR in terms of blood, protein, and clinical and preclinical drug therapy (including synthesized molecules and natural molecules). This review may provide a theoretical basis for further DR research.
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Affiliation(s)
- Jiahui Ren
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong, China
- Yunnan Key Laboratory of Southern Medicine Utilization, Kunming, China
| | - Shuxia Zhang
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
| | - Yunfeng Pan
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
| | - Meiqi Jin
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
| | - Jiaxin Li
- Yunnan Key Laboratory of Southern Medicine Utilization, Kunming, China
- College of Pharmacy, Heilongjiang University of Chinese Medicine, Harbin, China
| | - Yun Luo
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- *Correspondence: Yun Luo, ; Xiaobo Sun , ; Guang Li,
| | - Xiaobo Sun
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Beijing Key Laboratory of Innovative Drug Discovery of Traditional Chinese Medicine (Natural Medicine) and Translational Medicine, Beijing, China
- Key Laboratory of Bioactive Substances and Resource Utilization of Chinese Herbal Medicine, Ministry of Education, Beijing, China
- *Correspondence: Yun Luo, ; Xiaobo Sun , ; Guang Li,
| | - Guang Li
- Institute of Medicinal Plant Development, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
- Yunnan Branch, Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Jinghong, China
- Yunnan Key Laboratory of Southern Medicine Utilization, Kunming, China
- *Correspondence: Yun Luo, ; Xiaobo Sun , ; Guang Li,
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9
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Cocchiaro P, Di Donato V, Rubbini D, Mastropasqua R, Allegretti M, Mantelli F, Aramini A, Brandolini L. Intravitreal Administration of rhNGF Enhances Regenerative Processes in a Zebrafish Model of Retinal Degeneration. Front Pharmacol 2022; 13:822359. [PMID: 35330834 PMCID: PMC8940169 DOI: 10.3389/fphar.2022.822359] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 01/28/2022] [Indexed: 12/03/2022] Open
Abstract
Nerve growth factor (NGF) is the best characterized neurotrophin, and it is known to play an important role in ocular homeostasis. Here, we demonstrated the expression of NGF receptors in adult zebrafish retina and optimized a light-induced retina degeneration (LID) zebrafish model that mimics human cone-rod disorders, demonstrating that intravitreal (IV) administration of rhNGF can boost zebrafish retinal regeneration in this model. Adult zebrafish retinae exposed to 60 h of light irradiation (60 h LID) displayed evident reduction of outer nuclear layer (ONL) thickness and cell number with presence of apoptotic cells. Retinal histologic evaluation at different time points showed that IV therapeutic injection of rhNGF resulted in an increase of ONL thickness and cell number at late time points after damage (14 and 21 days post injury), ultimately accelerating retinal tissue recovery by driving retinal cell proliferation. At a molecular level, rhNGF activated the ERK1/2 pathway and enhanced the regenerative potential of Müller glia gfap- and vim-expressing cells by stimulating at early time points the expression of the photoreceptor regeneration factor Drgal1-L2. Our results demonstrate the highly conserved nature of NGF canonical pathway in zebrafish and thus support the use of zebrafish models for testing new compounds with potential retinal regenerative properties. Moreover, the pro-regenerative effects of IV-injected NGF that we observed pave the way to further studies aimed at evaluating its effects also in mammals, in order to expedite the development of novel rhNGF-based therapeutic approaches for ophthalmological disorders.
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Affiliation(s)
| | - Vincenzo Di Donato
- ZeClinics SL, IGTP (Germans Trias I Pujol Research Institute), Barcelona, Spain
- *Correspondence: Vincenzo Di Donato, ; Laura Brandolini,
| | - Davide Rubbini
- ZeClinics SL, IGTP (Germans Trias I Pujol Research Institute), Barcelona, Spain
| | - Rodolfo Mastropasqua
- Institute of Ophthalmology, University of Modena and Reggio Emilia, Modena, Italy
| | | | | | | | - Laura Brandolini
- Dompé Farmaceutici SpA, Napoli, Italy
- *Correspondence: Vincenzo Di Donato, ; Laura Brandolini,
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10
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Castoldi V, Marenna S, Huang SC, d'Isa R, Chaabane L, Comi G, Leocani L. Dose-dependent effect of myelin oligodendrocyte glycoprotein on visual function and optic nerve damage in experimental autoimmune encephalomyelitis. J Neurosci Res 2022; 100:855-868. [PMID: 35043454 DOI: 10.1002/jnr.25007] [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: 11/25/2020] [Revised: 11/29/2021] [Accepted: 12/21/2021] [Indexed: 11/08/2022]
Abstract
Female Dark Agouti rats were immunized with increasing doses of myelin oligodendrocyte glycoprotein (MOG) to develop experimental autoimmune encephalomyelitis (EAE), a preclinical model of multiple sclerosis. Typical EAE motor impairments were assessed daily and noninvasive visual evoked potentials (VEPs) were recorded at baseline and 5 weeks after immunization, with final histopathology of optic nerves (ONs). Immunized rats exhibited a relapsing-remitting clinical course. Both VEP and histological abnormalities were detected in a MOG dose-dependent gradient. Increasing MOG dosage augmented visual function impairment in EAE, which could be monitored with VEP recording to assess demyelination and axonal loss along ONs.
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Affiliation(s)
- Valerio Castoldi
- Experimental Neurophysiology Unit, INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Silvia Marenna
- Experimental Neurophysiology Unit, INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Su-Chun Huang
- Experimental Neurophysiology Unit, INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy
| | - Raffaele d'Isa
- Experimental Neurophysiology Unit, INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy
| | - Linda Chaabane
- INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy
| | - Giancarlo Comi
- Vita-Salute San Raffaele University, Milan, Italy.,Casa di Cura del Policlinico, Milan, Italy
| | - Letizia Leocani
- Experimental Neurophysiology Unit, INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy.,Vita-Salute San Raffaele University, Milan, Italy.,INSPE - Institute of Experimental Neurology, San Raffaele Scientific Institute, Milan, Italy
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11
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Lucas-Ruiz F, Galindo-Romero C, Albaladejo-García V, Vidal-Sanz M, Agudo-Barriuso M. Mechanisms implicated in the contralateral effect in the central nervous system after unilateral injury: focus on the visual system. Neural Regen Res 2021; 16:2125-2131. [PMID: 33818483 PMCID: PMC8354113 DOI: 10.4103/1673-5374.310670] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2020] [Revised: 11/21/2020] [Accepted: 01/11/2021] [Indexed: 12/21/2022] Open
Abstract
The retina, as part of the central nervous system is an ideal model to study the response of neurons to injury and disease and to test new treatments. During the last decade is becoming clear that unilateral lesions in bilateral areas of the central nervous system trigger an inflammatory response in the contralateral uninjured site. This effect has been better studied in the visual system where, as a rule, one retina is used as experimental and the other as control. Contralateral retinas in unilateral models of retinal injury show neuronal degeneration and glial activation. The mechanisms by which this adverse response in the central nervous system occurs are discussed in this review, focusing primarily on the visual system.
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Affiliation(s)
- Fernando Lucas-Ruiz
- Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria-Virgen de la Arrixaca (IMIBArrixaca) Murcia, Spain
| | - Caridad Galindo-Romero
- Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria-Virgen de la Arrixaca (IMIBArrixaca) Murcia, Spain
| | - Virginia Albaladejo-García
- Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria-Virgen de la Arrixaca (IMIBArrixaca) Murcia, Spain
| | - Manuel Vidal-Sanz
- Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria-Virgen de la Arrixaca (IMIBArrixaca) Murcia, Spain
| | - Marta Agudo-Barriuso
- Departamento de Oftalmología, Facultad de Medicina, Universidad de Murcia and Instituto Murciano de Investigación Biosanitaria-Virgen de la Arrixaca (IMIBArrixaca) Murcia, Spain
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12
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NGF Eye Administration Recovers the TrkB and Glutamate/GABA Marker Deficit in the Adult Visual Cortex Following Optic Nerve Crush. Int J Mol Sci 2021; 22:ijms221810014. [PMID: 34576177 PMCID: PMC8471133 DOI: 10.3390/ijms221810014] [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: 07/30/2021] [Revised: 09/09/2021] [Accepted: 09/13/2021] [Indexed: 12/21/2022] Open
Abstract
Eye-drop recombinant human nerve growth factor (ed-rhNGF) has proved to recover the retina and optic nerve damage in animal models, including the unilateral optic nerve crush (ONC), and to improve visual acuity in humans. These data, associated with evidence that ed-rhNGF stimulates the brain derived neurotrophic factor (BDNF) in retina and cortex, suggests that NGF might exert retino-fugal effects by affecting BDNF and its receptor TrkB. To address these questions, their expression and relationship with the GABAergic and glutamatergic transmission markers, GAD65 and GAD67, vesicular inhibitory amino acid transporter (VGAT), and vesicular glutamate transporters 1 and 2 (VGLUT-1 and VGLUT-2) were investigated in adult ONC rats contralateral and ipsilateral visual cortex (VCx). Ed-rhNGF recovers the ONC-induced alteration of GABAergic and glutamatergic markers in contralateral VCx, induces an upregulation of TrkB, which is positively correlated with BDNF precursor (proBDNF) decrease in both VCx sides, and strongly enhances TrkB+ cell soma and neuronal endings surrounded by GAD65 immuno-reactive afferents. These findings contribute to enlarging the knowledge on the mechanism of actions and cellular targets of exogenously administrated NGF, and suggest that ed-rhNGF might act by potentiating the activity-dependent TrkB expression in GAD+ cells in VCx following retina damage and/or ONC.
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13
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Lin B, Zhang X, Xu X. Nerve Growth Factor Protects Retinal Ganglion Cells Related to Inhibiting Endoplasmic Reticulum Stress by Inhibiting IRE1-JNK-CHOP Signaling Pathway. Ocul Immunol Inflamm 2021; 30:1341-1346. [PMID: 33793349 DOI: 10.1080/09273948.2021.1872651] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
BACKGROUND Under various physiological conditions, endoplasmic reticulum stress can induce apoptotic cell death, leading to brain and retinal neuronal cell death, but the relations of ER stress-induced apoptosis and the nerve growth factor's therapeutic effect in Glaucoma optic neuropathy still unclear. METHODS An endoplasmic reticulum stress model was established in ganglion cells using TG, the endoplasmic reticulum stress inducer. MTT assay and flow cytometry were used to detect the protective effect of NGF on retinal ganglion cells. Western blot was used to detect apoptosis-related proteins Bcl-2, Bad and endoplasmic reticulum stress-related proteins GRP78, IRE1, JNK and CHOP. RESULTS MTT assay and flow cytometry showed NGF can protect the apoptosis of ganglion cells. Western blot analysis showed the level of pro-apoptotic protein Bad was decreased and anti-apoptotic protein Bcl-2 was increased after NGF treatment. Endoplasmic reticulum stress-induced proteins GRP78, IRE1, JNK and CHOP are counter- acted by NGF. CONCLUSION NGF protects retinal ganglion cells related to inhibiting endoplasmic reticulum stress by inhibiting IRE1-JNK-CHOP signaling pathway.
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Affiliation(s)
- Beibei Lin
- Department of Pharmacy, The Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiaobi Zhang
- Department of Pharmacy, The Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xuegu Xu
- Department of Pharmacy, The Eye Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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14
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da Silva-Junior AJ, Mesentier-Louro LA, Nascimento-Dos-Santos G, Teixeira-Pinheiro LC, Vasques JF, Chimeli-Ormonde L, Bodart-Santos V, de Carvalho LRP, Santiago MF, Mendez-Otero R. Human mesenchymal stem cell therapy promotes retinal ganglion cell survival and target reconnection after optic nerve crush in adult rats. Stem Cell Res Ther 2021; 12:69. [PMID: 33468246 PMCID: PMC7814601 DOI: 10.1186/s13287-020-02130-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2020] [Accepted: 12/28/2020] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Optic-nerve injury results in impaired transmission of visual signals to central targets and leads to the death of retinal ganglion cells (RGCs) and irreversible vision loss. Therapies with mesenchymal stem cells (MSCs) from different sources have been used experimentally to increase survival and regeneration of RGCs. METHODS We investigated the efficacy of human umbilical Wharton's jelly-derived MSCs (hWJ-MSCs) and their extracellular vesicles (EVs) in a rat model of optic nerve crush. RESULTS hWJ-MSCs had a sustained neuroprotective effect on RGCs for 14, 60, and 120 days after optic nerve crush. The same effect was obtained using serum-deprived hWJ-MSCs, whereas transplantation of EVs obtained from those cells was ineffective. Treatment with hWJ-MSCs also promoted axonal regeneration along the optic nerve and reinnervation of visual targets 120 days after crush. CONCLUSIONS The observations showed that this treatment with human-derived MSCs promoted sustained neuroprotection and regeneration of RGCs after optic nerve injury. These findings highlight the possibility to use cell therapy to preserve neurons and to promote axon regeneration, using a reliable source of human MSCs.
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Affiliation(s)
- Almir Jordão da Silva-Junior
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil. .,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil. .,Rede NanoSaúde, Rio de Janeiro, RJ, Brazil.
| | - Louise Alessandra Mesentier-Louro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Department of Ophthalmology, Stanford University, Palo Alto, CA, USA
| | - Gabriel Nascimento-Dos-Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Leandro Coelho Teixeira-Pinheiro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Juliana F Vasques
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Luiza Chimeli-Ormonde
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Victor Bodart-Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Luiza Rachel Pinheiro de Carvalho
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Marcelo Felippe Santiago
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil
| | - Rosalia Mendez-Otero
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,Instituto Nacional de Ciência e Tecnologia em Medicina Regenerativa-REGENERE, Rio de Janeiro, RJ, Brazil.,Rede NanoSaúde, Rio de Janeiro, RJ, Brazil
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15
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Fudalej E, Justyniarska M, Kasarełło K, Dziedziak J, Szaflik JP, Cudnoch-Jędrzejewska A. Neuroprotective Factors of the Retina and Their Role in Promoting Survival of Retinal Ganglion Cells: A Review. Ophthalmic Res 2021; 64:345-355. [PMID: 33454713 DOI: 10.1159/000514441] [Citation(s) in RCA: 50] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2020] [Accepted: 01/09/2021] [Indexed: 11/19/2022]
Abstract
Retinal ganglion cells (RGCs) play a crucial role in the visual pathway. As their axons form the optic nerve, apoptosis of these cells causes neurodegenerative vision loss. RGC death could be triggered by increased intraocular pressure, advanced glycation end products, or mitochondrial dysfunction. In this review, we summarize the role of some neuroprotective factors in RGC injury: ciliary neurotrophic factor (CNTF), nerve growth factor (NGF), brain-derived neurotrophic factor, vascular endothelial growth factor, pigment epithelium-derived factor, glial cell line-derived neurotrophic factor, and Norrin. Each, in their own unique way, prevents RGC damage caused by glaucoma, ocular hypertension, ischemic neuropathy, and even oxygen-induced retinopathy. These factors are produced mainly by neurons, leukocytes, glial cells, and epithelial cells. Neuroprotective factors act via various signaling pathways, including JAK/STAT, MAPK, TrkA, and TrkB, which promotes RGC survival. Many attempts have been made to develop therapeutic strategies using these factors. There are ongoing clinical trials with CNTF and NGF, but they have not yet been accepted for clinical use.
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Affiliation(s)
- Ewa Fudalej
- Department of Experimental and Clinical Physiology, Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Magdalena Justyniarska
- Department of Experimental and Clinical Physiology, Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
| | - Kaja Kasarełło
- Department of Experimental and Clinical Physiology, Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland,
| | - Jacek Dziedziak
- Department of Experimental and Clinical Physiology, Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland.,Department of Ophthalmology, SPKSO Ophthalmic University Hospital, Medical University of Warsaw, Warsaw, Poland
| | - Jacek P Szaflik
- Department of Ophthalmology, SPKSO Ophthalmic University Hospital, Medical University of Warsaw, Warsaw, Poland
| | - Agnieszka Cudnoch-Jędrzejewska
- Department of Experimental and Clinical Physiology, Center for Preclinical Research, Medical University of Warsaw, Warsaw, Poland
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16
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d'Isa R, Castoldi V, Marenna S, Santangelo R, Comi G, Leocani L. A new electrophysiological non-invasive method to assess retinocortical conduction time in the Dark Agouti rat through the simultaneous recording of electroretinogram and visual evoked potential. Doc Ophthalmol 2020; 140:245-255. [PMID: 31832898 DOI: 10.1007/s10633-019-09741-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/06/2019] [Indexed: 11/25/2022]
Abstract
PURPOSE To develop a non-invasive method exploiting simultaneous recording of epidermal visual evoked potential (VEP) and epicorneal electroretinogram (ERG) to study retinocortical function and to evaluate its reliability and repeatability over time. METHODS Female wild-type DA rats were anesthetized with ketamine/xylazine (40/5 mg/kg). Epidermal VEP (Ag/AgCl cup electrode on scalp) and epicorneal ERG (gold ring electrode on eye surface) were recorded simultaneously in response to flash stimulation. RESULTS ANOVA for repeated measures showed that peak times of ERG b-wave and of VEP N1 and P2 were stable across 6 weekly time-points, as well as the corresponding amplitudes. Mean retinocortical time from b-wave to N1 (RCT1) was 7.6 ms and remained comparable across the 6 time-points. Mean retinocortical time from b-wave to P2 (RCT2) was 28.7 ms and did not show significant variations over time. Coefficient of variation (CoV%) and CoV% adjusted for sample size, namely relative standard error (RSE%), were calculated as indexes of repeatability. Good RSE% over time was obtained (< 5% for b-wave, N1 and P2 peak times; < 20% and < 7% for RCT1 and RCT2, respectively). CONCLUSIONS Simultaneous recording of ERG and VEP has been previously achieved through invasive methods requiring surgery. Here, we present a new non-invasive method, which allowed to obtain peak and retinocortical times that were constant across a long period and had a good repeatability over time. This method will ensure not only a gain in animal welfare, but will also avoid stress and eye or brain lesions which can interfere with experimental variables.
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Affiliation(s)
- Raffaele d'Isa
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Valerio Castoldi
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milan, Italy
| | - Silvia Marenna
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milan, Italy
| | - Roberto Santangelo
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milan, Italy
| | - Giancarlo Comi
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
- Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milan, Italy
| | - Letizia Leocani
- Institute of Experimental Neurology (INSPE), San Raffaele Scientific Institute, IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
- Vita-Salute San Raffaele University, Via Olgettina 58, 20132, Milan, Italy.
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17
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Jafari M, Delaviz H, Torabi S, Mohammadi J, Gheitasi I. The Effect of Muscle Graft With Nerve Growth Factor and Laminin on Sciatic Nerve Repair in Rats. Basic Clin Neurosci 2020; 10:333-344. [PMID: 32231770 PMCID: PMC7101516 DOI: 10.32598/bcn.9.10.145] [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: 04/13/2017] [Revised: 04/29/2017] [Accepted: 03/03/2018] [Indexed: 11/21/2022] Open
Abstract
Introduction: Peripheral nerve injury is one of the most common damages that lead to physical disability. Considering the similarity between the coatings of skeletal muscles and nerve fibers, we conducted this research to determine the effect of muscle graft with Nerve Growth Factor (NGF) and Laminin (L) on nerve repair. Methods: We cut a 10-mm length of the sciatic nerve from 42 female Wistar rats (Weight: 200±250 g) and equally divided the rats into three groups. In the muscle graft+NGF+laminin group, the degenerated skeletal muscle was sutured with proximal and distal ends of the transected sciatic nerve. Then, NGF (100 ng) and laminin (1.28 mg/mL) were injected into the muscle graft. In the muscle graft group, normal saline was injected into the muscle graft. In the control group, 10 mm of the sciatic nerve was removed without any treatment. Functional recovery was assessed based on Sciatic Functional Index (SFI). Also, tracing motor neurons and histological studies were performed to evaluate nerve repair. The obtained data were analyzed by ANOVA test. Results: The Mean±SD SFI value significantly increased in the muscle graft+NGF+laminin (−76.6±2.9) and muscle graft (−82.1±3.5) groups 60 days after the injury compared to the control group. The Mean±SD number of labeled motor neurons significantly increased in the muscle graft+NGF+laminin (78.6±3.1) and muscle graft (61.3±6.1) groups compared to the control group (P<0.001). The mean number of myelinated axons in the distal segments of the muscle graft+NGF+laminin increased significantly compared to the muscle graft group. Conclusion: These findings suggest that muscle graft followed by NGF and laminin administration have therapeutic effects on nerve repair.
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Affiliation(s)
- Mehrzad Jafari
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Hamdollah Delaviz
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Somayeh Torabi
- Cellular and Molecular Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Jamshid Mohammadi
- Herbal Medicine Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
| | - Izadpanah Gheitasi
- Herbal Medicine Research Center, Yasuj University of Medical Sciences, Yasuj, Iran
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18
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Mesentier-Louro LA, Teixeira-Pinheiro LC, Gubert F, Vasques JF, Silva-Junior AJ, Chimeli-Ormonde L, Nascimento-Dos-Santos G, Mendez-Otero R, Santiago MF. Long-term neuronal survival, regeneration, and transient target reconnection after optic nerve crush and mesenchymal stem cell transplantation. Stem Cell Res Ther 2019; 10:121. [PMID: 30995945 PMCID: PMC6472105 DOI: 10.1186/s13287-019-1226-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2019] [Revised: 03/18/2019] [Accepted: 03/28/2019] [Indexed: 02/06/2023] Open
Abstract
Background Retina and/or optic nerve injury may cause irreversible blindness, due to degeneration of retinal ganglion cells. We and others have previously shown that the intravitreal injection of mesenchymal stem cells (MSCs) protects injured retinal ganglion cells and stimulates their regeneration after optic nerve injury, but the long-term effects of this therapy are still unknown. Methods We injected rat MSC (rMSC) intravitreally in adult (3–5 months) Lister Hooded rats of either sex after optic nerve crush. Retinal ganglion cell survival, axonal regeneration, and reconnection were analyzed 60 and 240 days after crush by immunohistochemistry for Tuj1, anterograde labeling with cholera-toxin B and by immunohistochemistry for nerve growth factor-induced gene A (NGFI-A, driven by light stimulation) in the superior colliculus after a cycle of light deprivation-stimulation. Visual behaviors (optokinetic reflex, looming response, and preference for dark) were analyzed 70 days after crush. Results rMSC treatment doubled the number of surviving retinal ganglion cells, preferentially of a larger subtype, and of axons regenerating up to 0.5 mm. Some axons regenerated to the lateral geniculate nucleus and superior colliculus. NGFI-A+ cells were doubled in rMSC-treated animals 60 days after crush, but equivalent to vehicle-injected animals 240 days after crush, suggesting that newly formed synapses degenerated. Animals did not recover visual behaviors. Conclusions We conclude that rMSC-induced neuroprotection is sustained at longer time points. Although rMSCs promoted long-term neuroprotection and long-distance axon regeneration, the reconnection of retinal ganglion cells with their targets was transitory, indicating that they need additional stimuli to make stable reconnections. Electronic supplementary material The online version of this article (10.1186/s13287-019-1226-9) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Louise A Mesentier-Louro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.
| | - Leandro C Teixeira-Pinheiro
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Fernanda Gubert
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Juliana F Vasques
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,National Institute of Science and Technology for Regenerative Medicine-REGENERE, Rio de Janeiro, Brazil
| | - Almir J Silva-Junior
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,National Institute of Science and Technology for Regenerative Medicine-REGENERE, Rio de Janeiro, Brazil
| | - Luiza Chimeli-Ormonde
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,National Institute of Science and Technology for Regenerative Medicine-REGENERE, Rio de Janeiro, Brazil
| | - Gabriel Nascimento-Dos-Santos
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
| | - Rosalia Mendez-Otero
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil.,National Institute of Science and Technology for Regenerative Medicine-REGENERE, Rio de Janeiro, Brazil
| | - Marcelo F Santiago
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, RJ, 21941-902, Brazil
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19
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Mesentier-Louro LA, Rosso P, Carito V, Mendez-Otero R, Santiago MF, Rama P, Lambiase A, Tirassa P. Nerve Growth Factor Role on Retinal Ganglion Cell Survival and Axon Regrowth: Effects of Ocular Administration in Experimental Model of Optic Nerve Injury. Mol Neurobiol 2019; 56:1056-1069. [PMID: 29869196 DOI: 10.1007/s12035-018-1154-1] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2018] [Accepted: 05/24/2018] [Indexed: 01/04/2023]
Abstract
Retinal ganglion cell (RGC) degeneration occurs within 2 weeks following optic nerve crush (ONC) as a consequence of reduced retro-transport of growth factors including nerve growth factor (NGF). The hypothesis that intravitreal (ivt) and eye drop (ed) administration of recombinant human NGF (rhNGF) might counteract ONC in adult rats is explored in this study. We found that both ivt- and ed-rhNGF reduced RGC loss and stimulated axonal regrowth. Chiefly, survival and regenerative effects of rhNGF were associated with a reduction of cells co-expressing Nogo-A/p75NTR at crush site borders, which contribute to glia scar formation following nerve injury, and induce further degeneration. We also found that ocular application of rhNGF reduced p75NTR and proNGF and enhanced phosphorylation of TrkA and its intracellular signals at retina level. Nogo-R and Rock2 expression was also normalized by ed-rhNGF treatment in both ONC and contralateral retina. Our findings that ocular applied NGF reaches and exerts biological actions on posterior segment of the eye give a further insight into the neurotrophin diffusion/transport through eye structures and/or their trafficking in optic nerve. In addition, the use of a highly purified NGF form in injury condition in which proNGF/p75NTR binding is favored indicates that increased availability of mature NGF restores the balance between TrkA and p75NGF, thus resulting in RGC survival and axonal growth. In conclusion, ocular applied NGF is confirmed as a good experimental paradigm to study mechanisms of neurodegeneration and regeneration, disclose biomarkers, and time windows for efficacy treatment following cell or nerve injury.
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Affiliation(s)
- Louise A Mesentier-Louro
- Eye Repair Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Pamela Rosso
- Institute of Cell Biology and Neurobiology (IBCN), National Research Council (CNR), Via di Fosso di Fiorano, 64 (00143), Rome, Italy
| | - Valentina Carito
- Institute of Cell Biology and Neurobiology (IBCN), National Research Council (CNR), Via di Fosso di Fiorano, 64 (00143), Rome, Italy
| | - Rosalia Mendez-Otero
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Marcelo F Santiago
- Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro, Rio de Janeiro, Brazil
| | - Paolo Rama
- Eye Repair Unit, Division of Neuroscience, San Raffaele Scientific Institute, Milan, Italy
| | - Alessandro Lambiase
- Section of Ophthalmology, Department of Sense Organs, University Sapienza, Rome, Italy
| | - Paola Tirassa
- Institute of Cell Biology and Neurobiology (IBCN), National Research Council (CNR), Via di Fosso di Fiorano, 64 (00143), Rome, Italy.
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20
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Xu Z, Fouda AY, Lemtalsi T, Shosha E, Rojas M, Liu F, Patel C, Caldwell RW, Narayanan SP, Caldwell RB. Retinal Neuroprotection From Optic Nerve Trauma by Deletion of Arginase 2. Front Neurosci 2018; 12:970. [PMID: 30618589 PMCID: PMC6306467 DOI: 10.3389/fnins.2018.00970] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2018] [Accepted: 12/04/2018] [Indexed: 01/09/2023] Open
Abstract
Our previous studies have implicated expression of the mitochondrial isoform of the arginase enzyme arginase 2 (A2) in neurovascular injury during ischemic retinopathies. The aim of this study was to characterize the specific involvement of A2 in retinal injury following optic nerve crush (ONC). To accomplish this, wild-type (WT) or A2 knockout (A2-/-) mice were subjected to ONC injury. The contralateral eye served as sham control. Quantitative RT-PCR and western blot were used to evaluate mRNA and protein expression. Retinal ganglion cell (RGC) survival was assessed in retinal whole mounts. Axonal sprouting was determined by anterograde transport of Cholera Toxin B (CTB). These analyses showed increased A2 expression following ONC. Numbers of NeuN-positive neurons as well as Brn3a- and RBPMS-positive RGC were decreased in the WT retinas at 14 days after ONC as compared to the sham controls. This ONC-induced neuronal loss was diminished in the A2-/- retinas. Similarly, axonal degeneration was ameliorated by A2 deletion whereas axon sprouting was enhanced. Significant retinal thinning was also seen in WT retinas at 21 days after ONC, and this was blocked in A2-/- mice. Cell death studies showed an increase in TUNEL positive cells in the RGC layer at 5 days after ONC in the WT retinas, and this was attenuated by A2 deletion. ONC increased glial cell activation in WT retinas, and this was significantly reduced by A2 deletion. Western blotting showed a marked increase in the neurotrophin, brain derived neurotrophic factor (BDNF) and its downstream signaling in A2-/- retinas vs. WT after ONC. This was associated with increases in the axonal regeneration marker GAP-43 in A2-/- retinas. Furthermore, A2-/- retinas showed decreased NLRP3 inflammasome activation and lower interleukin (IL-) 1β/IL-18 levels as compared to WT retinas subjected to ONC. Collectively, our results show that deletion of A2 limits ONC-induced neurodegeneration and glial activation, and enhances axonal sprouting by a mechanism involving increases in BDNF and decreases in retinal inflammation. These data demonstrate that A2 plays an important role in ONC-induced retinal damage. Blockade of A2 activity may offer a therapeutic strategy for preventing vision loss induced by traumatic retinal injury.
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Affiliation(s)
- Zhimin Xu
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States
| | - Abdelrahman Y Fouda
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States
| | - Tahira Lemtalsi
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States
| | - Esraa Shosha
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States
| | - Modesto Rojas
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, United States
| | - Fang Liu
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Program in Clinical and Experimental Therapeutics, University of Georgia, College of Pharmacy, Augusta, GA, United States
| | - Chintan Patel
- Vascular Biology Center, Augusta University, Augusta, GA, United States
| | - R William Caldwell
- James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Department of Pharmacology and Toxicology, Augusta University, Augusta, GA, United States
| | - Subhadra Priya Narayanan
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Program in Clinical and Experimental Therapeutics, University of Georgia, College of Pharmacy, Augusta, GA, United States
| | - Ruth B Caldwell
- Charlie Norwood VA Medical Center, Augusta, GA, United States.,Vascular Biology Center, Augusta University, Augusta, GA, United States.,James and Jean Culver Vision Discovery Institute, Augusta University, Augusta, GA, United States.,Department of Cell Biology and Anatomy, Augusta University, Augusta, GA, United States.,Department of Ophthalmology, Augusta University, Augusta, GA, United States
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21
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Santangelo R, Castoldi V, D'Isa R, Marenna S, Huang SC, Cursi M, Comi G, Leocani L. Visual evoked potentials can be reliably recorded using noninvasive epidermal electrodes in the anesthetized rat. Doc Ophthalmol 2018; 136:165-175. [PMID: 29623523 DOI: 10.1007/s10633-018-9630-5] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Accepted: 03/27/2018] [Indexed: 11/30/2022]
Abstract
PURPOSE Visual evoked potentials (VEPs) are a powerful tool to evaluate nervous conduction along the visual pathways, both in humans and in animal models. Traditionally, epidural screw electrodes are used to record VEPs in preclinical research. Here we tested the feasibility in the preclinical setting of the same noninvasive technique used for clinical VEP acquisition, by using epidermal cup electrodes with no surgical procedures. METHODS Monocular flash VEPs were recorded bilaterally under sevoflurane anesthesia once a week for 6 weeks in 14 dark Agouti rats, 7 with implanted epidural screws and 7 with epidermal 6 mm Ø Ag/AgCl cups. RESULTS VEP traces obtained with the two techniques were morphologically comparable. There were no significant differences in latency of the main visual component between screw-recorded VEPs (sVEPs) and cup-recorded VEPs (cVEPs). Amplitude values with epidermal cups were significantly lower than those with epidural screws. Both techniques provided latencies and amplitudes which were stable over time. Furthermore, with regard to latency both methods ensured highly repeatable measurements over time, with epidermal cups even providing slightly better results. On the other hand, considering amplitudes, cVEPs and sVEPs provided fairly acceptable repeatability. CONCLUSIONS Epidermal cup electrodes can provide comparable results to those obtained with the "gold standard" epidural screws, while representing a simpler and less invasive technique to test nervous conduction along the visual pathways in the preclinical setting.
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Affiliation(s)
- Roberto Santangelo
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Valerio Castoldi
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Raffaele D'Isa
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Silvia Marenna
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Su-Chun Huang
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Marco Cursi
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Giancarlo Comi
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy
| | - Letizia Leocani
- Department of Neurology and Institute of Experimental Neurology (INSPE) - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy. .,University Vita-Salute San Raffaele - IRCCS-San Raffaele Hospital, Via Olgettina 60, 20132, Milan, Italy.
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22
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Wang L, Cao T, Chen H. Treatment of glaucomatous optic nerve damage using ginsenoside Rg1 mediated by ultrasound targeted microbubble destruction. Exp Ther Med 2018; 15:300-304. [PMID: 29375689 PMCID: PMC5763670 DOI: 10.3892/etm.2017.5386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2017] [Accepted: 10/10/2017] [Indexed: 12/21/2022] Open
Abstract
The treatment of glaucomatous optic nervedamage using ginsenoside Rg1 mediated by ultrasound targeted microbubbles destruction was evaluated. Thirty healthy New Zealand white rabbits were subjected to injection of 0.3% carbomer solution to establish glaucomatous optic nerve damage model. Rabbits were divided into 5 groups: control group, model group, model group + intravitreal injection of nerve growth factor (NGF) group, model group + intravitreal injection of ginsenoside Rg1 group (Rg1 group), model group + intravitreal injection of ginsenoside Rg1 + ultrasound microbubble group (ultrasound group), model group + ultrasound targeted microbubble destruction (ultrasound group). Intraocular pressures were compared at 1, 2 and 4 weeks after model establishment. Rabbits were sacrificed 4 weeks after model establishment to collect retinal tissue for H&E staining. Histological changes were observed and the retinal thickness was measured. Contents of malondialdehyde (MDA), superoxide dismutase (SOD) and nitric oxide (NO) were measured by ELISA. Intraocular pressure was significantly higher in model group than in control group at 1 week (P<0.05). Intraocular pressure was significantly lower in the ultrasound group than in NGF group and Rg1 group at all time-points (P<0.05). The number of ganglion cells in model group was decreased significantly. Number of nuclear layer cells was significantly reduced. Thickest retina was found in control group and model group was the thinnest (P<0.05). Contents of MDA and NO in model group were significantly higher than those in NCF group and Rg1 group. SOD content in control group was higher than that in ultrasound group and model group (P<0.05). In conclusion, treatment of glaucomatous optic nerve damage using ginsenoside Rg1 mediated by ultrasound targeted microbubble destruction can reduce the level of oxidative stress, relieve intraocular pressure and reduce ganglion cell damage.
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Affiliation(s)
- Lianfeng Wang
- Section One, Department of Ophthalmology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Tingting Cao
- Section One, Department of Ophthalmology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
| | - Haiting Chen
- Section One, Department of Ophthalmology, Cangzhou Central Hospital, Cangzhou, Hebei 061001, P.R. China
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23
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Tirassa P, Rosso P, Iannitelli A. Ocular Nerve Growth Factor (NGF) and NGF Eye Drop Application as Paradigms to Investigate NGF Neuroprotective and Reparative Actions. Methods Mol Biol 2018; 1727:19-38. [PMID: 29222770 DOI: 10.1007/978-1-4939-7571-6_2] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022]
Abstract
The eye is a central nervous system structure that is uniquely accessible to local treatment. Through the ocular surface, it is possible to access the retina, optic nerve, and brain. Animal models of retina degeneration or optic nerve crush could thus serve as tools to investigate whether and how factors, which are anterogradely or retrogradely transported through the optic nerve, might contribute to activate neuroprotection and eventually regeneration. Among these factors, nerve growth factor (NGF) plays a crucial role during development of the visual system, as well as during the entire life span, and in pathological conditions. The ability of NGF to exert survival and trophic actions on the retina and brain cells when applied intraocularly and topically as eye drops is critically reviewed here, together with the effects of ocular neurotrophins on neuronal pathways influencing body rhythm, cognitions, and behavioral functions. The latest data from animal models and humans are presented, and the mechanism of action of ocularly administered NGF is discussed. NGF eye drops are proposed as an experimental strategy to investigate the role and cellular targets of neurotrophins in the mechanism(s) underlying neurodegeneration/regeneration and their involvement in the regulation of neurological and behavioral dysfunctions.
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Affiliation(s)
- Paola Tirassa
- National Research Council (CNR), Institute of Cell Biology & Neurobiology, Rome, Italy.
| | - Pamela Rosso
- National Research Council (CNR), Institute of Cell Biology & Neurobiology, Rome, Italy.,Department of Science, LIME, University Roma Tre, Rome, Italy
| | - Angela Iannitelli
- Department of Human Sciences, University of L'Aquila, L'Aquila, Italy.,Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy
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24
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Huang R, Lan Q, Chen L, Zhong H, Cui L, Jiang L, Huang H, Li L, Zeng S, Li M, Zhao X, Xu F. CD200Fc Attenuates Retinal Glial Responses and RGCs Apoptosis After Optic Nerve Crush by Modulating CD200/CD200R1 Interaction. J Mol Neurosci 2017; 64:200-210. [PMID: 29280053 DOI: 10.1007/s12031-017-1020-z] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 12/15/2017] [Indexed: 12/25/2022]
Abstract
To explore the hypothesis that CD200Fc, a CD200R1 agonist with anti-inflammatory properties, will inhibit retinal glial cells hyperactivation and retinal ganglion cells (RGCs) apoptosis after optic nerve injury. CD200Fc was immediately administered after optic nerve crush (ONC) once by intravitreal injection. Rats were euthanized at 5 days after ONC. The density of RGCs was counted by immunostaining of retina flat mounts for Brn3a. TUNEL assay, immunoblotting analysis of ionized calcium-binding adapter molecule 1(iba1) (microglia marker) and glial fibrillary acidic protein (GFAP) (astrocytes and Müller cells marker), RT-PCR analysis of cyclooxygenase-2 (COX-2), inducible nitric oxide synthase (iNOS), monocyte chemotactic protein 1 (MCP-1), tumor necrosis factor-α (TNF-α), interleukin (IL)-8 and IL-10, ELISA measure protein levels of inflammatory cytokines and western blot analysis of CD200 and CD200R1 were evaluated. CD200Fc treatment suppressed ONC-induced RGCs loss through inhibition of RGCs apoptosis. Additionally, expression of glial cells activation markers GFAP and iba1 and production of pro-inflammatory cytokines (COX-2, iNOS, MCP-1, TNF-α, IL-8) were decreased in CD200Fc treated animals after ONC. Meanwhile, anti-inflammatory cytokine IL-10 was increased by CD200Fc treatment in ONC-induced rat retina. Finally, we found that CD200Fc significantly inhibited ONC-induced increased in expression of CD200 and raised the already high basal CD200R1 expression in the rat retina after ONC. Our results demonstrated that the anti-inflammatory effects of CD200Fc in ONC rats model through inhibited the activation of retinal glial cells via the interaction between CD200 and CD200R1, and the neuroprotective effects of CD200Fc on RGCs thought inhibited its apoptosis.
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Affiliation(s)
- Rong Huang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China.,Department of Ophthalmology, Renmin Hospital of Wuhan University, Wuhan, 430060, Hubei, People's Republic of China
| | - Qianqian Lan
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Lifei Chen
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Haibin Zhong
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Ling Cui
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Li Jiang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Hui Huang
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Li Li
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Siming Zeng
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China
| | - Min Li
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China.
| | - Xin Zhao
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China.
| | - Fan Xu
- Department of Ophthalmology, People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, 530021, Guangxi, People's Republic of China.
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