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School of Medicine Columbia

Faculty and Staff

Michy P. Kelly

Title: Associate Professor of Pharmacology, Physiology & Neuroscience
Department: Pharmacology, Physiology & Neuroscience
School of Medicine Columbia
Phone: 803-216-3546

Pharmacology, Physiology & Neuro
Basic Science Bldg 1, Rm D13



Towson University    

Wake Forest University School of Medicine

University of Pennsylvania


How is it our brains—tangible entities—are able to store memories of intangible sights, sounds, emotions and ideas? What draws you toward one person, but repels you from another? My lab tries to answer these questions. Specifically, we explore how cyclic nucleotide signaling controls the formation of social memories and social interactions, and how alterations in this cascade might contribute to social deficits that are seen in patients with neurodevelopmental, psychiatric, and age-related disease.  To do this, we identify molecular changes in tissue from patients and then mimic those changes in rodents in order to determine their behavioral, biochemical, and molecular consequences. We also use in vitro approaches to determine how mutations may change enzymatic activity or the subcellular compartmentalization of enzymes. Studies are conducted during development, early adulthood, and late adulthood in order to understand factors that modulate resiliency of the brain as well as those that trigger the manifestation of neurocognitive deficits later in life.

Our ultimate hope is that an improved understanding of the molecular mechanisms of social memory formation and social interactions will lead to the development of novel therapeutics for neurodevelopmental, psychiatric, and/or age-related diseases where these social behaviors are compromised.


  • Farmer R, Burbano SD, Patel NS, Sarmiento A, Smith AJ, Kelly MP* (2020) Phosphodiesterases PDE2A and PDE10A both change mRNA expression in the human brain with age, but only PDE2A changs in a region-specific manner with psychiatric disease. Cellular Signalling. Epub ahead of print.
  • Kelly MP, Heckman P, Havekkes R* (2020) Genetic manipulation of cyclic nucleotide signalying during hippocampal neuroplasticity and memory formation. Progress in Neurobiology. Epub ahead of print.
  • Baillie G, Tejada G, Kelly MP (2019) Therapeutic targeting of 3',5'-cyclic nucleotide phosphodiesterases:  Inhibition and beyond. Nature Reviews Drug Discovery. 18(10):770-796.  DOI: 10.1038/s41573-019-0033-4 [peer-reviewed invited review]
  • Pilarzyk K, Klett J, Pena E, Porcher L, Smith AJ, Kelly MP (2019) Loss of function of phosphodiesterase 11A shows recent and remote long-term memory can be uncoupled. Current Biology. 29:2307-2321.
  • Patel NS, Klett J, Pilarzyk K, Lee D, Kass D, Menniti F, Kelly MP*(2018) Identification of new phosphodiesterase 9A (PDE9A) isoforms and how their expression and subcellular compartmentalization in brain changes across the lifespan. Neurobiology of Aging. 65:217-234. [highlighted by the Human Aging Project]
  • Pathak G, Agostino MJ, Bishara K, Capell WR, Fisher JL, Hegde S, Ibrahim BA, Pilarzyk K, Sabin C, Tuczkewycz T, Wilson S, and Kelly MP* (2017) PDE11A Negatively Regulates Lithium Responsivity. Molecular Psychiatry. 22(12):1714-1724
  • Salpietro V, Nakashima K, Kimura H, Efthymiou S, Manole A, Di Rosa G, Wiethoff S, Bettencourt C, Vandrovoca J, Chelban V, Raskind W, Bello OD, Kelly MP, Perez-Dueñas B, Davies CH, Macaya A, Houlden H (2018) Homozygous mutation in PDE2A causes a hereditary chorea with onset in early infancy. Movement Disorders. 33 (3):482-488.
  • Kelly MP* (2018) PDE11A. Choi S, ed. Encyclopedia of Signaling Molecules. Springer, Inc. pp3804-3826. DOI 10.1007/978-1-4614-3438-9_101747-1 [Invited book chapter]
  • Kelly MP* (2018) Cyclic nucleotide signaling changes associated with normal aging and age-related diseases of the brain. Cellular Signaling. 42:281-291. [Invited Review; highlighted by]
  • Kelly MP* (2017) A role for Phosphodiestearse 11A (PDE11A) in the formation of social memories and the stabilization of mood. Advances in Neurobiology. 17:201-230. [Invited book chapter]
  • Kelly MP* (2016) Phosphodiesterase 11A. Choi S, ed. Encyclopedia of Signaling Molecules. Springer, Inc. DOI 10.1007/978-1-4614-6438-9_101747-1 [Invited book chapter]
  • Hegde S, Capell WR, Ibrahim BA, Klett J, Patel NS, Sougiannis AT, and Kelly MP* (2016) Phosphodiesterase 11A (PDE11A), enriched in ventral hippocampus neurons, is required for the consolidation of social but not non-social memories in mice.  Neuropsychopharmacology. 41(12):2920-2931.
  • Hegde S, Hao J, Oliver D, Patel NS, Poupore N, Shtutman M, Kelly MP* (2016) PDE11A regulates social behaviors and is a key mechanism by which social experience sculpts the brain. Neuroscience. 335:151-169.
  • Pathak G, Ibrahim BA, McCarthy SM, Baker K, and Kelly MP* (2015) Amphetamine sensitization in mice is sufficient to produce both manic- and depressive-related behaviors as well as changes in the functional connectivity of corticolimbic structures. Neuropharmacology. 95:434-447.
  • Kelly MP* (2015) Does Phosphodiesterase 11A (PDE11A) Hold Promise as a Future Therapeutic Target?  Current Pharmaceutical Design. 21(3):389-416. [Invited Review].
  • Kelly MP*, Adamowicz W, Bove S, Hartman AJ, Mariga A, Pathak G, Reinhart V, Romegialli A, and Kleiman RJ (2014) Select 3’,5’-cyclic nucleotide phosphodiesterases exhibit altered expression in the aged rodent brain. Cellular Signalling. 26:383-397.
  • Kelly MP* (2014) Putting together the pieces of phosphodiesterase distribution patterns in the brain: A jigsaw puzzle of cyclic nucleotide regulation. Chapter 2 In Brandon NJ & West A, eds. Cyclic Nucleotide Phosphodiesterases in the Central Nervous System: From Biology to Disease. John Wiley & Sons, Inc. [Invited book chapter].

Find Dr. Kelly on PubMed.

Lab Members

  • Katy Pilarzyk—graduate student
  • Sophie Bruckmeier - graduate student
  • Steven Burbano—undergraduate student
  • Latarsha Porcher—research specialist
  • Abigail Smith—research specialist
  • Nikki Gorny —research specialist

Challenge the conventional. Create the exceptional. No Limits.