Heterochromatin Mechanisms of Cortical Expansion

2025 Seed Grant
José Manuel Baizabal Carballo, Ph.D.
Indiana University Bloomington

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), leading to partial loss of gene silencing in the developing brain. However, the mechanisms by which the loss of chromatin compaction results in aberrant gene expression and neurodevelopmental abnormalities remain largely unknown. Here, Dr. Baizabal’s lab proposes a combination of cutting-edge genetics and genomics approaches to understand how heterochromatin controls neural stem cell proliferation and cell cycle dynamics, leading to the expansion of the developing cerebral cortex. Ultimately, these foundational insights will deepen our understanding of neurodevelopmental disorders in which impaired chromatin modifications may play a central role.
 

Other Grants

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…
Jared M. Cregg, Ph.D., University of Wisconsin
Brainstem Blueprints: Microcircuit Basis of Left/Right Motor Decisions
The brain helps us move through the world by choosing which way to go—left or right. The specific brain circuits that control these kinds of actions aren’t well understood. Our…