Abstract
Reducing body myopathy is a rare muscle disease defined by abnormal inclusions in affected muscle fibers that can be stained with menadione-nitroblue tetrazolium. The origin of these inclusions has not been determined. Here we show that reducing bodies bear characteristics of nucleoli. Ultrastructurally, muscle biopsy specimens of a patient with adult-onset reducing body myopathy showed granular structures of reducing bodies with features similar to the granules of nucleoli, which consisted of pre-ribosomes. In addition, reducing bodies were positive for histochemistry of argyrophilic nucleolar organizer regions (a method for detecting the areas where ribosomal RNA is actively transcribed in the nucleolus), and for antibodies against nucleoli and nuclear ribonucleoprotein. The current findings suggest that reducing bodies contain pre-ribosomes and their associated proteins of the nucleolus and that formation of reducing bodies may result from defects of processing and assembly of ribosomes.
Similar content being viewed by others
References
Brooke MH, Neville HE (1972) Reducing body myopathy. Neurology 22:829–840
Carpenter S, Karpati G, Holland P (1985) New observations in reducing body myopathy. Neurology 35:818–827
Clevenger CV, Epstein AL (1984) Use of immunogold electron microscopy and monoclonal antibodies in the identification of nuclear substructures. J Histochem Cytochem 32:757–765
Derenzini M, Ploton D (1991) Interphase nucleolar organizer regions in cancer cells. Int Rev Exp Pathol 32:149–192
Epstein AL, Clevenger CV (1985) Identification of nuclear antigens in human cells by immnuofluorescence, immnuoelectron microscopy, and immunobiochemical methods using monoclonal antibodies. In: Bekhor I (ed) Progress in nonhistone protein research, vol 1, CRC Press, Boca Raton, pp 117–137
Goebel HH, Halbig LE, Goldfarb L, Schober R, Albani M, Neuen-Jacob E, Voit T (2001) Reducing body myopathy with cytoplasmic bodies and rigid spine syndrome: a mixed congenital myopathy. Neuropediatrics 32:196–205
Kiyomoto BH, Murakami N, Kobayashi Y, Nihei K, Tanaka T, Takeshita K, Nonaka I (1995) Fatal reducing body myopathy. Ultrastructural and immunohistochemical observations. J Neurol Sci 128:58–65
Lindner LE (1993) Improvements in the silver-staining technique for nucleolar organizer regions (AgNOR). J Histochem Cytochem 41:439–445
Oh SJ, Meyers GJ, Wilson ER Jr, Alexander CB (1983) A benign form of reducing body myopathy. Muscle Nerve 6:278–282
Olsen MOJ, Dundr M, Szebeni A (2000) The nucleolus: an old factory with unexpected capabilities. Trends Cell Biol 10:189–196
Reichmann H, Goebel HH, Schneider C, Toyka KV (1996) Familial mixed congenital myopathy with rigid spine phenotype. Muscle Nerve 20:411–417
Roussel P, Hernandez-Verdun D (1994) Identification of Ag-NOR proteins, markers of proliferation related to ribosomal gene activity. J Histochem Cytochem 42:1513–1517
Scheer U, Hock R (1999) Structure and function of the nucleolus. Curr Opin Cell Biol 11:385–390
Shaw PJ (1995) The nucleolus. Annu Rev Cell Dev Biol 11:93–121
Tomé FM, Fardeau M (1975) Congenital myopathy with “reducing bodies” in muscle fibres. Acta Neuropathol (Berl) 31:207–217
Tschochner H, Hurt E (2003) Pre-ribosomes on the road from the nucleolus to the cytoplasm. Trends Cell Biol 13:255–263
Tuccari G, Giuffre G, Crisafulli C, Monici MC, Toscano A, Vita G (1999) Quantitation of argyrophilic nucleolar organizer regions in regenerating muscle fibers in Duchenne and Becker muscular dystrophies and polymyositis. Acta Neuropathol 97:247–252
Acknowledgements
This work was supported in part by a Grant-in-Aid for Scientific Research from JSPS (C-13670676) and a Grant from Kansai Medical University (Research Grant B). We thank Ms. Hitomi Nakabayashi for technical assistance.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Shinde, A., Nakano, S., Kusaka, H. et al. Nucleolar characteristics of reducing bodies in reducing body myopathy. Acta Neuropathol 107, 265–271 (2004). https://doi.org/10.1007/s00401-003-0806-y
Received:
Revised:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00401-003-0806-y