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Lalonde R, Hernandez M, Strazielle C. BDNF and Cerebellar Ataxia. Curr Drug Res Rev 2024; 16:300-307. [PMID: 37609676 DOI: 10.2174/2589977515666230811093021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2023] [Revised: 06/06/2023] [Accepted: 06/16/2023] [Indexed: 08/24/2023]
Abstract
Brain-derived neurotrophic factor (BDNF) has been proposed as a treatment for neurodegeneration, including diseases of the cerebellum, where BDNF levels or those of its main receptor, TrkB, are often diminished relative to controls, thereby serving as replacement therapy. Experimental evidence indicates that BDNF signaling countered cerebellar degeneration, sensorimotor deficits, or both, in transgenic ATXN1 mice mutated for ataxin-1, Cacna1a knock-in mice mutated for ataxin-6, mice injected with lentivectors encoding RNA sequences against human FXN into the cerebellar cortex, Kcnj6Wv (Weaver) mutant mice with granule cell degeneration, and rats with olivocerebellar transaction, similar to a BDNF-overexpressing transgenic line interbred with Cacng2stg mutant mice. In this regard, this study discusses whether BDNF is effective in cerebellar pathologies where BDNF levels are normal and whether it is effective in cases with combined cerebellar and basal ganglia damage.
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Affiliation(s)
- Robert Lalonde
- Université de Lorraine, Laboratoire Stress, Immunité, Pathogènes EA 7300, Campus Santé, 9 avenue de la Forêt de Haye, 54500 Vandoeuvre-les-Nancy, France
| | - Magali Hernandez
- Université de Lorraine, Laboratoire Stress, Immunité, Pathogènes EA 7300, Campus Santé, 9 avenue de la Forêt de Haye, 54500 Vandoeuvre-les-Nancy, France
- CHRU Nancy, allée du Morvan, 54500 Vandoeuvre-les-Nancy, France
| | - Catherine Strazielle
- Université de Lorraine, Laboratoire Stress, Immunité, Pathogènes EA 7300, Campus Santé, 9 avenue de la Forêt de Haye, 54500 Vandoeuvre-les-Nancy, France
- CHRU Nancy, allée du Morvan, 54500 Vandoeuvre-les-Nancy, France
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Noreldin AE, Elewa YHA, Kon Y, Warita K, Hosaka YZ. Immunohistochemical localization of osteoblast activating peptide in the mouse kidney. Acta Histochem 2018. [PMID: 29534834 DOI: 10.1016/j.acthis.2018.03.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Osteoblast activating peptide (OBAP) is a newly discovered peptide detected in the rat stomach, which has a major role in osteogenesis. Recently, we revealed its localization in the parietal cells of the rat stomach. There have been no data regarding OBAP expression in the kidney, despite its role in calcium reabsorption in renal tubules. The current study aimed to inspect the expression of OBAP in the kidney of twelve 10-week-old male C3H/HeNJc1 mice using immunohistochemistry, and immunoelectron microscopic localization. The immunohistochemical investigation revealed an OBAP positive reaction mainly in the medulla, which was stronger than the cortex of the kidney and was concentrated in the distal convoluted tubules (DCT), connecting tubules (CT), and the thick limbs of the loop of Henle (HL). Moreover, we clarified that the OBAP was co-distributed with ghrelin and calbindin (markers of the DCT). Interestingly, immunoelectron microscopy demonstrated that OBAP was concentrated in the mitochondrial inner membrane of the DCT and CT. Based on these results, it was concluded that the mitochondria of the DCT, CT, and HL of the mice kidney generate OBAP. Furthermore, our results suggest that OBAP might have a role in the regulation of calcium reabsorption by the renal tubule; however, further investigations are required to clarify this potential role.
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Affiliation(s)
- Ahmed E Noreldin
- Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori, Tottori, Japan; Department of Histology and Cytology, Faculty of Veterinary Medicine, The Scientific Campus, Damanhour University, Damanhour, Egypt
| | - Yaser Hosny Ali Elewa
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan; Department of Histology and Cytology, Faculty of Veterinary Medicine, Zagazig University, Zagazig, Egypt
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Basic Veterinary Sciences, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, Japan
| | - Katsuhiko Warita
- Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori, Tottori, Japan; Department of Basic Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan
| | - Yoshinao Z Hosaka
- Veterinary Anatomy, Faculty of Agriculture, Tottori University, Tottori, Tottori, Japan; Department of Basic Veterinary Science, United Graduate School of Veterinary Science, Yamaguchi University, Yamaguchi, Japan.
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