Background: Here we aimed to evaluate: (1) Rhes mRNA expression in mouse midbrain, (2) the effect of Rhes deletion on the number of dopamine neurons, (3) nigrostriatal-sensitive behavior during aging in knockout mice. Methods: Radioactive in situ hybridization was assessed in adult mice. The beam-walking test was executed in 3-, 6- and 12-month-old mice. Immunohistochemistry of midbrain tyrosine hydroxylase (TH)-positive neurons was performed in 6- and 12-month-old mice. Results: Rhes mRNA is expressed in TH-positive neurons of SNpc and the ventral tegmental area. Moreover, lack of Rhes leads to roughly a 20% loss of nigral TH-positive neurons in both 6- and 12-month-old mutants, when compared with their age-matched controls. Finally, lack of Rhes triggers subtle alterations in motor performance and coordination during aging. Conclusions: Our findings indicate a fine-tuning role of Rhes in regulating the number of TH-positive neurons of the substantia nigra and nigrostriatal-sensitive motor behavior during aging.

Pinna, A., Napolitano, F., Pelosi, B., Di Maio, A., Wardas, J., Casu, M. A., Costa, G., Migliarini, S., Calabresi, P., Pasqualetti, M., Morelli, M., Usiello, A., The Small GTP-Binding Protein Rhes Influences Nigrostriatal-Dependent Motor Behavior During Aging, <<MOVEMENT DISORDERS>>, 2016; 31 (4): 583-589. [doi:10.1002/mds.26489] [http://hdl.handle.net/10807/172039]

The Small GTP-Binding Protein Rhes Influences Nigrostriatal-Dependent Motor Behavior During Aging

Calabresi, Paolo;
2016

Abstract

Background: Here we aimed to evaluate: (1) Rhes mRNA expression in mouse midbrain, (2) the effect of Rhes deletion on the number of dopamine neurons, (3) nigrostriatal-sensitive behavior during aging in knockout mice. Methods: Radioactive in situ hybridization was assessed in adult mice. The beam-walking test was executed in 3-, 6- and 12-month-old mice. Immunohistochemistry of midbrain tyrosine hydroxylase (TH)-positive neurons was performed in 6- and 12-month-old mice. Results: Rhes mRNA is expressed in TH-positive neurons of SNpc and the ventral tegmental area. Moreover, lack of Rhes leads to roughly a 20% loss of nigral TH-positive neurons in both 6- and 12-month-old mutants, when compared with their age-matched controls. Finally, lack of Rhes triggers subtle alterations in motor performance and coordination during aging. Conclusions: Our findings indicate a fine-tuning role of Rhes in regulating the number of TH-positive neurons of the substantia nigra and nigrostriatal-sensitive motor behavior during aging.
2016
Inglese
Pinna, A., Napolitano, F., Pelosi, B., Di Maio, A., Wardas, J., Casu, M. A., Costa, G., Migliarini, S., Calabresi, P., Pasqualetti, M., Morelli, M., Usiello, A., The Small GTP-Binding Protein Rhes Influences Nigrostriatal-Dependent Motor Behavior During Aging, <<MOVEMENT DISORDERS>>, 2016; 31 (4): 583-589. [doi:10.1002/mds.26489] [http://hdl.handle.net/10807/172039]
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10807/172039
Citazioni
  • ???jsp.display-item.citation.pmc??? 7
  • Scopus 13
  • ???jsp.display-item.citation.isi??? 13
social impact