the effect of nerve growth factor (ngf) on regeneration of rat sciatic nerves in adult rat was studied. the sciatic nerve was cut out across a 6‑mm gap, then the proximal and distal stumps were inserted into the silicone tube chamber. 7s ngf was extracted from submaxillary gland and then was injected into the silicone in experimental group. after seven months nerve was transected and stained wi...

background: adipose-derived stem cells (adscs) are a population of pluripotent cells used for tissue engineering purposes. the main purpose of the present study was to transdifferentiate the adscs to schwann-like cells and to determine the intensity of apoptosis in adscs during the transdifferentiation process.   methods: adscs were isolated from the inguinal adipose tissue of adult rats and th...

Background: Peripheral nerve injury (PNI) is a common condition that compromises motor and sensory functions. Peripheral nerves are known to have regenerative capability and the pineal hormone, melatonin, is known to aid nerve regeneration. However, the role of Schwann cells and the pathways involved remain unclear. Thus, the aim of this study is to identify the effects of melatonin on Schwann ...

Schwann cells are the myelinating glia of the peripheral nervous system. Neuron-Schwann cell contact profoundly affects several aspects of Schwann cell phenotype, including stimulation of mitosis and myelin formation. Many reports suggest that neuronal contact exerts this influence on Schwann cells by elevating Schwann cell cAMP and activating cAMP-dependent protein kinase A (PKA). To elucidate...

Melanocytes are derived from neural crest cells, which also differentiate into neurons, glial bone/cartilage and smooth muscles. Melanocyte-inducing transcription factor (MITF) promotes melanocyte development differentiation through activating pigment genes. Since MITF activates most of its target genes represses a few them, we aimed to characterize repressed by MITF. By using RNA sequencing ch...

Abstract In peripheral nerves, Schwann cells form myelin and provide trophic support to axons. We previously showed that the mitochondrial protein prohibitin 2 can localize axon-Schwann-cell interface is required for developmental myelination. Whether homologous 1 has a similar role, whether prohibitins also play important roles in cell mitochondria unknown. Here, we show deletion of minimally ...

The present study uses the embryonic chick to examine in vivo the mechanisms and regulation of Schwann cell programmed cell death (PCD) in spinal and cranial peripheral nerves. Schwann cells are highly dependent on the presence of axons for survival because the in ovo administration of NMDA, which excitotoxically eliminates motoneurons and their axons by necrosis, results in a significant incre...

Multipotent somatic stem cells have been identified in various adult tissues. However, the stem/progenitor cells of the peripheral nerves have been isolated only from fetal tissues. Here, we isolated Schwann-cell precursors/immature Schwann cells from the injured peripheral nerves of adult mice using a floating culture technique that we call "Schwann-spheres." The Schwann-spheres were derived f...