Dynamic changes in endoplasmic reticulum morphology and its contact with the plasma membrane in motor neurons in response to nerve injury
Mahmoud Elgendy,Hiromi Tamada, Takaya Taira, Yuma Iio, Akinobu Kawamura, Ayusa Kunogi, Yuka Mizutani, Hiroshi Kiyama - Functional Anatomy and Neuroscience, Nagoya, Japan / Department of Anatomy and Embryology, Damanhour, Egypt / Anatomy, Graduate School of Medicines, Fukui, Japan
The endoplasmic reticulum (ER) extends throughout a cell and plays a critical role in maintaining cellular homeostasis.
Changes in ER shape could provide a clue to explore the mechanisms that underlie the fate determination of neurons after
axon injury because the ER drastically changes its morphology under neuronal stress to maintain cellular homeostasis and
recover from damage. Because of their tiny structures and richness in the soma, the detailed morphology of the ER and its
dynamics have not been well analysed. In this study, the focused ion beam/scanning electron microscopy (FIB/SEM) analysis
was performed to explore the ultra-structures of the ER in the somata of motor neuron with axon regenerative injury models.