Related Disease
Cardiomyopathies, Cardiovascular Diseases
Anatomical Systems and Sites
Cardiovascular System, General Cell Biology, Heart
Research Models
Computational Modeling, Drosophila, Human
Techniques and Technologies
Bioinformatics, Cell Biology, Confocal Microscopy, Fluorescence Microscopy, Genetics, In vivo Modeling, Live Cell Imaging, Live Imaging, Microscopy and Imaging, Molecular Biology, RNA Interference (RNAi), Systems Biology, Transgenic Organisms
After a successful teaching career at the University of Michigan I have had the privilege to “reboot” my research career at Sanford Burnham Prebys where I have had the opportunity to develop novel methodologies to understand cardiomyopathy. I have also had the opportunity to work with NASA scientists to do experiments on the International Space Station.
Education
Postdoctoral Fellow, Stanford University, Palo Alto, CA, Neurochemistry Postdoctoral Fellow, University of Texas Medical School, Houston, TX, Neuroscience NIMH PhD, Wesleyan University, Middletown, CT, Neuroscience NIMH B.A., Lehigh University, Bethlehem, PA, Biology
Prestigious Runding Awards or Major Collaborative Grants
2015-2020: NIH R01 HL132241-01A1 – Using Drosophila genetics to identify molecular links between ion channel dysfunction and pathological cardiac remodeling. (PI) 2013-2018 NASA NRA #NNH12ZTT001N – The effects of microgravity on cardiac function, structure and gene expression using the Drosophila model. (Co-I)
Honor and Awards
2014: Space Florida International Space Station Research Competition Winner – Co-investigator – One of three Basic Research proposals selected for launch aboard SpaceX3 – Mission completed, live flies returned on May 18,2014 2001: Excellence in Teaching Award, University of Michigan 1997: Excellence in Teaching Award, University of Michigan 1986-1988: National Institute of Mental Health Fellowship 1983-1985: National Institute of Mental Health Fellowship 1981: Sigma Xi Research Award 1980 MBL Scholarship, Neural Systems and Behavior Course 1971-1975: National Merit Scholarship, Lehigh University
Board Appointments
2018-present: Board member American Society for Gravitational and Space Research
Anatomical Systems and Sites
Cardiovascular System, Heart
Research Models
Drosophila, Larval Zebrafish Heart, Zebrafish
Techniques and Technologies
Biophysiology, Cellular and Molecular Imaging, Fluorescence Microscopy, Gene Silencing, Genetics, In vivo Modeling, Ion Channels, Live Imaging, Microarrays, Microscopy and Imaging, Molecular Genetics, RNA Interference (RNAi), Semi-automated Optical Heartbeat Analysis (SOHA), Systems Biology, Transgenic Organisms
The Ocorr Lab is investigating the cellular and molecular basis of adult heart function and cardiomyopathies using the genetic model system Drosophila.
We use functional, electrophysiological, biochemical and immunohistochemical techniques that allow us to examine the roles of genes and gene products in cardiac channelopathies and stress-related cardiomyopathies.
Our lab pioneered the development of a novel methodology (Semi-automatic Optical Heartbeat Analysis, SOHA) that permits the quantification of heartbeat parameters in model systems with small hearts.
Using this system we have identified several ion channels in the fly heart that play prominent roles in repolarization of the human heart and cause arrhythmia in both the fly and in humans when mutated. We also have developed a number of other disease models including a diabetic-like cardiomyopathy induced by high sugar diet and hypoxia-induced cardiomyopathy.
Recently we have begun collaborations with NASA (by winning a Space Florida International Space Station Research Competition). We are using the fly to uncover the molecular/cellular basis for cardiac and muscle atrophy in astronauts exposed to extended periods of microgravity despite extensive exercise regimes aboard the ISS. Our flies were launched aboard SpaceX 3 for a month-long exposure to micro-gravity.
Karen Ocorr’s Research Report
My lab is working to understand the cellular and molecular basis of heart disease. One project is focused on the genetic basis of Atrial Fibrillation. This project is a collaborative one with the lab of Alexandre Colas. We are combining two model systems, the fly in my lab and human induced cardiomyocytes in his lab, to identify AFib genes that have been implicated from patient studies. Another project focuses on the role of metabolism in cardiomyopathies. This is because obesity and metabolic syndrome are linked to an increased risk of heart disease. We are studying the role of a key metabolic signaling molecule in hypertrophic cardiomyopathy. A separate effort is focused on the role of gravity in heart function. These studies will provide important information for future habitants of colonies on the moon and Mars. But they are also relevant to patients who are bedridden and to patients with muscle wasting (sarcopenia).
Dr. Colas earned his PhD from the Universite Pierre et Marie Curie, Paris, France.
Funding Awards and Collaborative Grants
2011-2013: American Heart Association Post-Doctoral Fellowship 2011: Best Talk Award (Development & Aging Post-Doctoral Retreat, SBP) 2010-2011: California Institute for Regenerative Medicine Post-Doctoral Fellowship 2006-2007: French Myopathy Association PhD Fellowship 2003-2006: Ministry of French Research PhD Fellowship 2000-2001: Erasmus Undergraduate Fellowship
Related Disease
Cardiomyopathies, Cardiovascular Diseases, Heart Disease
Phenomena or Processes
Cardiovascular Biology, Cell Biology, Development and Differentiation, Embryogenesis, Embryonic/Pluripotent Stem Cells, Regenerative Biology, RNA-Based Gene Regulation, Transcription Factors
Our laboratory focuses on the identification and reconstruction of novel regulatory pathways controlling the determination and the acquisition of cardiovascular cell fates in humans. To that end, our team has developed a unique set of cell-based assays suitable for high-throughput functional screening, which enables the implementation of unbiased and systematic experimental approaches with unprecedented exploratory power. Our goal is to leverage generated knowledge to produce better cardiomyocytes to model cardiac diseases in-a-dish as well as to devise innovative cardiac regenerative strategies. In parallel, our lab is also dedicated to identify and develop new drugs promoting cardiac regeneration and/or helping preserving heart function after injury.