Beyond Neurotransmission: Exploring Roles for Synaptic Dopaminylation in Drug-induced Plasticity

2017 Seed Grant
Ian Maze, Ph.D.
Icahn School of Medicine at Mount Sinai

Substance use disorder is a chronic, relapsing illness that affects millions of individuals worldwide; however, few effective treatment options for substance abuse and addiction exist. Here, employing a unique combination of biochemical, molecular and behavioral approaches, we examine a highly novel role for the neurotransmitter dopamine in the direct regulation of protein function at reward circuitry synapses, processes that likely contribute to addictive behaviors. This pilot proposal therefore aims to transformatively integrate expertise from multiple disciplines (e.g., chromatin biochemistry, neuroepigenetics and behavioral neuroscience) to begin characterizing so-called protein “dopaminylation” in the central nervous system, as well as to elucidate its potential role in compulsive cocaine seeking. The overarching goal of this work is thus to identify novel molecular underpinnings of life-long addiction that will allow for the development of more effective therapeutic interventions.

Other Grants

José Manuel Baizabal Carballo, Ph.D., Indiana University Bloomington
Heterochromatin Mechanisms of Cortical Expansion
Neurodevelopmental disorders, such as autism and schizophrenia, are frequently associated with mutations in genes that encode chromatin-modifying enzymes. A subset of these mutations is thought to disrupt compacted chromatin (heterochromatin),…
Jessica L. Bolton, Ph.D., Georgia State University
Chemogenetic Tools in Microglia as a Novel Therapeutic Approach for Brain Disorders
All humans are born with a unique combination of genes, which contribute greatly to who we are. However, early-life experiences such as trauma or hardship, particularly during the first few…
Junyue Cao, Ph.D., The Rockefeller University
Elucidate the Molecular and Cellular Targets of Caloric Restriction in Rejuvenating Aged Mammalian Brain
As we age, the brain’s ability to function declines, increasing the risk of cognitive impairments and neurological diseases like Alzheimer’s and Parkinson’s. Our research investigates how caloric restriction (CR), a…
Vasileios Christopoulos, Ph.D., University of Southern California
Understanding the Mechanisms of Micturition in the Brain and Spinal Cord
This research aims to better understand how the brain and spinal cord work together to control urination, a process known as micturition. In healthy individuals, this process is carefully coordinated…