Programs for generating inhibitory interneuron diversity and connectivity
Active Project Grant Awarded Last action
- Award ID
- R01MH133381
- Recipient
-
The Trustees Of Columbia University In The City Of New York UEI QHF5ZZ114M72
- Awarding agency
-
National Institute of Mental Health
National Institutes of Health, Department of Health and Human Services
- Obligated
- $4,790,092
Award facts
- Assistance listing
- 93.242 Mental Health Research Grants
- Completion date 53% complete
- Place of performance
- New York, NY 10032, USA
Award details come from USAspending.gov.
Description
- Abstract
- Inhibitory interneurons comprise a diverse class of neurons of indisputably high biomedical importance. Interneuron dysfunctions are linked to neuropsychiatric disorders such as autism and schizophrenia and are also implicated in epilepsy and neurodegeneration. Cortical interneurons are born in the ganglionic eminences. As they develop, they migrate to intercalate into diverse cortical circuits throughout the brain, where they become increasingly specialized and modulate many aspects of neural circuit function. Recent transcriptomic and lineage tracing studies have begun to identify new levels of transcriptional diversity among interneuron subtypes and between species. Similarly, genomic studies are increasingly identifying genetic risks for disease that are predicted to impact interneuron function. What is needed to integrate these findings are 1) means to define the genetic programs that endow interneurons with their successive levels of functional specialization and 2) to be able to produce these features in vitro for use in disease modeling and genetic loss and gain-of-function studies. The overall goal of this study is to leverage a new combinatorial transcription factor (TF) screening method for direct neuronal reprogramming to define transcriptional programs that produce both generic and more specialized interneuron subtype identities. We will then test the resulting induced interneurons using deep quantitative methods for cell type phenotyping at the transcriptional, epigenetic, and functional level. We will apply new AI-enabled in vitro methods to assess cell morphology, motility, and synaptic specificity in vitro, paired with in vivo assays for migration and specific synapse formation. These collaborative interdisciplinary studies will accomplish three goals relevant to brain development and repair. First, they will enable the production of defined interneuron subpopulations in vitro, which will accelerate genetic studies using loss and gain-of-function. Second, we posit that by performing a high throughput screen for transcription factor "codes" that can induce different aspects of interneuron diversity, we will uncover new transcriptional modules that govern key functional aspects of interneuron identity. Third, by developing the first reliable assays to assess the capacity of "synthetic" induced neuron to achieve synaptic specificity in vitro and in the brain, we will advance reprogramming technology and open the door to modeling disease that impact some synapses but not others, as is the case for most common diseases including autism, schizophrenia and alzheimer's disease.
Transactions
| Action | Obligated | Date |
|---|---|---|
| Amendment | $791,553 | |
| Amendment | $121,201 | |
| Amendment | $121,201 | |
| Amendment | $686,802 | |
| Amendment | $686,802 | |
| Amendment | $80,956 | |
| Amendment | $80,956 | |
| Amendment | $740,207 | |
| Amendment | $740,207 | |
| Original award | $740,207 |
Subawards
| Subrecipient | Amount | Awarded |
|---|---|---|
| The Winifred Masterson Burke Medical Research Institute, Inc. | $192,000 | |
| The Winifred Masterson Burke Medical Research Institute, Inc. | $178,132 |
Quick answers
Who received award R01MH133381?
R01MH133381 was awarded to The Trustees Of Columbia University In The City Of New York by National Institute of Mental Health (National Institutes of Health) on March 20, 2024.
How much is award R01MH133381 worth?
$4,790,092 has been obligated on R01MH133381.
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