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Murine Drinking Models in the Development of Pharmacotherapies for Alcoholism: Drinking in the Dark and Two-bottle Choice
Published on: January 7, 2019
Receptor Tyrosine Kinases as Therapeutic Targets for Alcohol Use Disorder
1Department of Psychiatry and Center for Alcohol Research in Epigenetics, University of Illinois at Chicago, 1601 West Taylor Street, MC 912, Chicago, Illinois, 60612, USA.
Abstract:
The receptor tyrosine kinases (RTKs) are a large family of proteins that transduce extracellular signals to the inside of the cell to ultimately affect important cellular functions such as cell proliferation, survival, apoptosis, differentiation, and migration. They are expressed in the nervous system and can regulate behavior through modulation of neuronal and glial function. As a result, RTKs are implicated in neurodegenerative and psychiatric disorders such as depression and addiction. Evidence has emerged that 5 RTKs (tropomyosin-related kinase B (TrkB), RET proto-oncogene (RET), anaplastic lymphoma kinase (ALK), fibroblast growth factor receptor (FGFR), and epidermal growth factor receptor (EGFR)) modulate alcohol drinking and other behaviors related to alcohol addiction. RTKs are considered highly "druggable" targets and small-molecule inhibitors of RTKs have been developed for the treatment of various conditions, particularly cancer. These kinases are therefore attractive targets for the development of new pharmacotherapies to treat alcohol use disorder (AUD). This review will examine the preclinical evidence describing TrkB, RET, ALK, FGFR, and EGFR modulation of alcohol drinking and other behaviors relevant to alcohol abuse.
Insights
Receptor tyrosine kinases (RTKs) influence alcohol addiction behaviors. Targeting RTKs like TrkB, RET, ALK, FGFR, and EGFR offers potential new treatments for alcohol use disorder (AUD).
Area of Science:
- Neuroscience
- Pharmacology
- Molecular Biology
Background:
- Receptor tyrosine kinases (RTKs) are crucial cell signaling proteins involved in vital cellular functions.
- RTKs regulate neuronal and glial function, impacting behavior and implicated in psychiatric disorders like addiction.
- Specific RTKs, including TrkB, RET, ALK, FGFR, and EGFR, are linked to alcohol drinking behaviors.
Purpose of the Study:
- To review preclinical evidence on the role of five specific RTKs in modulating alcohol drinking and related behaviors.
- To explore the potential of RTKs as therapeutic targets for alcohol use disorder (AUD).
Main Methods:
- Literature review of preclinical studies.
- Focus on evidence implicating TrkB, RET, ALK, FGFR, and EGFR in alcohol-related behaviors.
Main Results:
- Preclinical data indicate that TrkB, RET, ALK, FGFR, and EGFR significantly modulate alcohol consumption and behaviors associated with alcohol addiction.
- RTKs are validated as 'druggable' targets, with inhibitors developed primarily for cancer treatment.
Conclusions:
- The identified RTKs represent promising targets for developing novel pharmacotherapies for alcohol use disorder (AUD).
- Further research into RTK modulation may lead to effective treatments for AUD.
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