Novel Therapies Based on Autophagy Modulation: Targets, Mechanisms, and Delivery Approaches

A special issue of Pharmaceutics (ISSN 1999-4923). This special issue belongs to the section "Drug Targeting and Design".

Deadline for manuscript submissions: closed (20 November 2024) | Viewed by 1442

Special Issue Editors


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Scientific Research Institute of Neurosciences and Medicine (SRINM), Timakova Str. 4, Novosibirsk 630117, Russia
Interests: neuroscience; neuropharmacology; neurodegenerative disorders; traumatic brain injury; animal models; behavior; neurogenomics
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E-Mail Website
Guest Editor
Scientific Research Institute of Neurosciences and Medicine (SRINM), Timakova Str. 4, Novosibirsk 630117, Russia
Interests: neuroscience; Parkinson's disease; neurodegeneration

Special Issue Information

Dear Colleagues,

We are pleased to announce a Special Issue of Pharmaceutics entitled “Novel Therapies Based on Autophagy Modulation: Targets, Mechanisms, and Delivery Approaches”.

Autophagy as a process of segregation and degradation of cellular material with a subsequent use of monomers for biosynthetic and/or reparative purposes. It plays a role in cellular survival but in some minor cases of over-stimulation, it can lead to cell death. It is sometimes called a "double-edged sword". The main autophagy regulator is the mTOR protein (mammalian Target of Rapamycin), which negatively regulates autophagy. Under normal conditions, autophagy is inhibited by mTOR, while mTOR dephosphorylation leads to autophagy activation. Furthermore, non-canonical pathways independent of the mTORC1-ULK1-PI3KC3 complex and of ATG5 or ATG7 also exist.

In general, the activation of autophagy enables cell survival. This mechanism of cell repair is considered as a core one for neurons whose proliferative potential is extremely limited. Hence, the induction of autophagy is regarded as a prospective approach to the treatment of neurodegeneration. Indeed, autophagy inducers produce neuroprotective effects in cellular and animal models of different neurodegenerative diseases. Moreover, for some inducers, clinical trials have already started. On the other hand, in the early stages of tumor development, autophagy inhibits tumor growth, while later on in oncology progression, it promotes the survival of tumor cells. Therefore, effective means of suppressing autophagy for the treatment of routine cancer should be considered and tested.

This Special Issue intends to highlight recent progress in the field. We welcome all types of articles providing new insights from experimental models and human studies about treatment approaches based on autophagy modulation, with a focus on targets for pharmacological intervention, mechanisms, delivery approaches, pharmacodynamics, pharmacokinetics, bioavailability, and other issues related to the pharmaceutics of autophagy-modulating drugs.

Dr. Maria Tikhonova
Dr. Alexander B. Pupyshev
Guest Editors

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Keywords

  • autophagy
  • neurodegeneration
  • neuroprotection
  • mTOR
  • oncology
  • pharmacodynamics
  • pharmacokinetics
  • anticancer therapy

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Published Papers (1 paper)

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Research

17 pages, 9236 KiB  
Article
Alimentary Treatment with Trehalose in a Pharmacological Model of Alzheimer’s Disease in Mice: Effects of Different Dosages and Treatment Regimens
by Alexander B. Pupyshev, Anna A. Akopyan, Michael V. Tenditnik, Marina V. Ovsyukova, Nina I. Dubrovina, Victor M. Belichenko, Tatiana A. Korolenko, Svetlana A. Zozulya, Tatiana P. Klyushnik and Maria A. Tikhonova
Pharmaceutics 2024, 16(6), 813; https://doi.org/10.3390/pharmaceutics16060813 - 16 Jun 2024
Cited by 2 | Viewed by 1090
Abstract
In the treatment of experimental neurodegeneration with disaccharide trehalose, various regimens are used, predominantly a 2% solution, drunk for several weeks. We studied the effects of different regimens of dietary trehalose treatment in an amyloid-β (Aβ) 25–35-induced murine model of Alzheimer’s disease (AD). [...] Read more.
In the treatment of experimental neurodegeneration with disaccharide trehalose, various regimens are used, predominantly a 2% solution, drunk for several weeks. We studied the effects of different regimens of dietary trehalose treatment in an amyloid-β (Aβ) 25–35-induced murine model of Alzheimer’s disease (AD). Aβ-treated mice received 2% trehalose solution daily, 4% trehalose solution daily (continuous mode) or every other day (intermittent mode), to drink for two weeks. We revealed the dose-dependent effects on autophagy activation in the frontal cortex and hippocampus, and the restoration of behavioral disturbances. A continuous intake of 4% trehalose solution caused the greatest activation of autophagy and the complete recovery of step-through latency in the passive avoidance test that corresponds to associative long-term memory and learning. This regimen also produced an anxiolytic effect in the open field. The effects of all the regimens studied were similar in Aβ load, neuroinflammatory response, and neuronal density in the frontal cortex and hippocampus. Trehalose successfully restored these parameters to the levels of the control group. Thus, high doses of trehalose had increased efficacy towards cognitive impairment in a model of early AD-like pathology. These findings could be taken into account for translational studies and the development of clinical approaches for AD therapy using trehalose. Full article
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