Cellular and Molecular Mechanisms of Neurotrophin Function in the Nervous System

A special issue of Biomolecules (ISSN 2218-273X).

Deadline for manuscript submissions: closed (31 July 2022) | Viewed by 2338

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Department of Biomedical and Biotechnological Sciences, University of Catania, 95124 Catania, Italy
Interests: molecular basis of aging and neurodegenerative disorders; mitochondrial bioenergetics; signal transduction pathways; roles of nitric oxide synthase; roles of poly (ADP) ribose polymerase (PARP); mechanisms and effects of amyloidogenic processes; effects of pleiotropic molecules (carnosine, threalose and derivatives); role of metallostasis; importance of proteostasis
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Dear Colleagues,

The neurotrophins family includes NGF, BDNF, neurotrophin-3 (NT-3), and neurotrophin-4 (NT-4). These growth factors are synthesized as long precursors (pre-pro-neurotrophins) containing an N-terminal signal peptide, a propeptide, and the mature neurotrophin peptide.

Mature neurotrophins and their propeptides are relevant regulators of various functions of the nervous system. They, indeed, play different key roles ranging from neuronal growth and differentiation to prominent participation in neuronal survival and recovery after insults.

Intercellular and intracellular neurotrophins signaling pathways sculpt neuronal circuits during brain development and regulate adaptive neuroplasticity, as well as cell survival during the entire life. Hence, dysregulation of neurotrophins signaling has been associated with several neurodegenerative disorders, age-related cognitive decline, memory failures, neuromuscular dysfunctions, vision defects, and general neuro-recovery impairment.

Such knowledge paved the way to research innovative therapeutic approaches, for example by modulating or mimicking neurotrophins signaling, for treating or preventing neurodegenerative and neuropsychiatric disorders, as well as preventing age-dependent cognitive decline.

This is one of the most uncertain and challenging problems of modern neuro-medicine, but the socio-economic results achieved through a solution justify any effort and costs toward the development of efficient therapeutic strategies, that could prevent these still uncurable diseases.

There are all the premises for further studies and insights in the field of neurotrophin-mediated neuroprotection and neuroregeneration.

Asso. Prof. Vincenzo Nicoletti
Guest Editor

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Keywords

  • neurotrophins
  • neurotrophins signaling
  • propeptides
  • synaptic plasticity
  • neuroprotection
  • neurodegeneration
  • neuroregeneration
  • neuronal differentiation

Published Papers (1 paper)

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Review

15 pages, 1120 KiB  
Review
The Role of Metals in the Neuroregenerative Action of BDNF, GDNF, NGF and Other Neurotrophic Factors
by Vincenzo Giuseppe Nicoletti, Krisztián Pajer, Damiano Calcagno, Gholam Pajenda and Antal Nógrádi
Biomolecules 2022, 12(8), 1015; https://doi.org/10.3390/biom12081015 - 22 Jul 2022
Cited by 14 | Viewed by 1990
Abstract
Mature neurotrophic factors and their propeptides play key roles ranging from the regulation of neuronal growth and differentiation to prominent participation in neuronal survival and recovery after injury. Their signaling pathways sculpture neuronal circuits during brain development and regulate adaptive neuroplasticity. In addition, [...] Read more.
Mature neurotrophic factors and their propeptides play key roles ranging from the regulation of neuronal growth and differentiation to prominent participation in neuronal survival and recovery after injury. Their signaling pathways sculpture neuronal circuits during brain development and regulate adaptive neuroplasticity. In addition, neurotrophic factors provide trophic support for damaged neurons, giving them a greater capacity to survive and maintain their potential to regenerate their axons. Therefore, the modulation of these factors can be a valuable target for treating or preventing neurologic disorders and age-dependent cognitive decline. Neuroregenerative medicine can take great advantage by the deepening of our knowledge on the molecular mechanisms underlying the properties of neurotrophic factors. It is indeed an intriguing topic that a significant interplay between neurotrophic factors and various metals can modulate the outcome of neuronal recovery. This review is particularly focused on the roles of GDNF, BDNF and NGF in motoneuron survival and recovery from injuries and evaluates the therapeutic potential of various neurotrophic factors in neuronal regeneration. The key role of metal homeostasis/dyshomeostasis and metal interaction with neurotrophic factors on neuronal pathophysiology is also highlighted as a novel mechanism and potential target for neuronal recovery. The progress in mechanistic studies in the field of neurotrophic factor-mediated neuroprotection and neural regeneration, aiming at a complete understanding of integrated pathways, offers possibilities for the development of novel neuroregenerative therapeutic approaches. Full article
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