Former Lab Members

Postdoctoral Fellows

Neelima Vaddadi, PhD 2023-2025

Neelima Vaddadi, PhD 2023-2025

Research: The regulation of dendrite morphogenesis and complexity

Current Position: Medical Affairs Manager, Azurity Pharmaceuticals

Kate Laws, PhD 2016-2022

Kate Laws, PhD 2016-2022

PennPORT Postdoctoral Fellow
Kate's Faculty Profile

Research and Outreach: The role of axon guidance pathways in non-neuronal tissues, DrosoPHILA High School Outreach

Current Position: Assistant Professor of Biology, Randolph Macon College

Edward Waddell, Ph.D 2019-2021

Edward Waddell, Ph.D  2019-2021

IRACDA Postdoctoral Fellow
Ed's Faculty Profile

Research and Outreach: Motor neuron development, DrosoPHILA High School Outreach

Current Position: Assistant Professor, Holy Family University

Madhavi Gorla, Ph.D 2015-2020

Madhavi Gorla, Ph.D 2015-2020

Madhavi's Faculty Profile

Research: Regulation of Commissural Axon Guidance in the Developing Mammalian Spinal Cord

Current Position: Assistant Professor, Department of Animal Biology, Hyderabad University

Elise Arbeille, Ph.D. 2014-2018

Elise Arbeille, Ph.D. 2014-2018

Elise's Faculty Profile

Research: The role of Brain Tumor in regulating axon growth and guidance at the midline.

Current Position: Assistant Professor of Physiology, Aix-Marseille University

Timothy Allen Evans, Ph.D. 2007-2013

Timothy Allen Evans, Ph.D.  2007-2013

Tim's Lab Website

Research: Diversification of Robo Receptor Function

Funding: NINDS F32 Postdoctoral Research Fellowship, 2009-2011

Current Position: Associate Professor of Biology, University of Arkansas

 

 

Juan Pablo Labrador, Ph.D. 2003-2008

Juan Pablo Labrador, Ph.D. 2003-2008

Pablo's Faculty Profile

Research: Transcriptional Regulation of Motor Axon Guidance

Funding: Human Frontiers Postdoctoral Fellowship, 2003-2005

Current Position: Associate Professor/Lecturer in Genetics, Trinity College, Dublin, Ireland

Xueping Fan, Ph.D. 2002-2003

Xueping's Faculty Profile

Research: Robo Receptor Signaling

Current Position: Assistant Professor of Medicine, Boston University Medical School

Graduate Students

Kelly Sullivan, PhD awarded 2025

Kelly Sullivan, PhD awarded 2025

Thesis Dissertation: The Role of Intracellular Trafficking in Regulating Axon Guidance Receptors During Neuronal Circuit Formation

Funding: NINDS F31 Predoctoral Fellowship

Olivia Fish

Olivia Fish

Current Position: Graduate Student, Lab of John Murray

Yixin Zang, Ph.D awarded 2022

Yixin Zang, Ph.D awarded 2022

Dissertation Title: To Cross or not to Cross: Uncovering Novel Regulators of Axon Guidance at the Midline

Current Position: Postdoctoral Fellow, Columbia University, Mentor: Gywneth Card

Karina Chaudhari, Ph.D awarded 2021

Karina Chaudhari, Ph.D awarded 2021

Dissertation Title: Mechanisms of Axon Guidance Receptor Regulation and Signaling During Midline Crossing

Current Position: Postdoctoral Fellow, Johns Hopkins University, Mentor: Alex Kolodkin

Samantha Russell, Ph.D awarded 2021

Samantha Russell, Ph.D awarded 2021

Thesis Dissertation: Netrin-Independent Frazzled Functions in Oogenesis and Axon Guidance

Current Position: Postdoctoral Fellow, McGill University, Mentor: Eric Lécuyer

Kevin Wiles, MS, 2021

Kevin Wiles, MS, 2021

Research: Axon Guidance Molecules in intestinal stem cell biology.

Current Position: Transitioning to Data Science/Software Engineering

Celine Santiago, Ph.D. Awarded 2016

Celine Santiago, Ph.D. Awarded 2016

Thesis Dissertation: Regulation of axon guidance receptor expression and activity during neuronal morphogenesis

Funding: National Science Foundation Graduate Research Fellowship, 2012-2015

Current Position: Principal Scientist, Institute for Protein Innovation

Louis Flexner Neuroscience Thesis Prize Awarded 2016

Tom Kadesch Genetics Thesis Prize Awarded 2016

Saul Winegrad Award for Outstanding Dissertation in Cell and Molecular Biology Awarded 2017

Melissa Hernandez-Fleming, Ph.D. Awarded 2016

Melissa Hernandez-Fleming, Ph.D. Awarded 2016

Thesis Dissertation: Sema-1a reverse signaling promotes midline crossing in response to secreted Semaphorins

Funding: NINDS F31 Graduate Research Fellowship, 2013-2015

Current Position: Technical Sales Specialist, Thermo Fisher Scientific

Rebecca Chance, Ph.D. Awarded 2015

Rebecca Chance, Ph.D. Awarded 2015

Thesis Dissertation: Between Slit and repulsion: cell and molecular mechanisms underlying Robo-mediated midline guidance

Funding: NINDS F31 Graduate Research Fellowship, 2010-2013

Current Position: Scientific Project Manager · U.S. Department of Veterans Affairs

Alexandra Neuhaus-Follini, Ph.D. Awarded 2015

Alexandra Neuhaus-Follini, Ph.D. Awarded 2015

Thesis Dissertation: The intracellular domain of the Frazzled/DCC receptor is a transcription factor required for commissural axon guidance

Funding: T32 Training Program in Genetics

Awards: AAAS Science & Technology Policy Fellow

Current Position: Law Student, Georgetown University

Mike O’Donnell, Ph.D. Awarded 2012

Mike O’Donnell, Ph.D. Awarded 2012

Mike's Lab Website

Thesis Dissertation: Signal transduction mechanisms in commissural axon guidance: the role of intracellular tyrosine kinases in Netrin-DCC/Frazzled axon attraction

Funding: T32 Training Program in Developmental Biology

Current Position: Assistant Professor, Yale University

Hope Coleman, VMD, Ph.D. Awarded 2008

Hope Coleman, VMD, Ph.D. Awarded 2008

Thesis Dissertation: Proteolytic processing of the guidance receptor Roundabout regulates its activity

Funding: T32 Training Program in Developmental Biology

Current Position: Veterinarian, Co-Owner Art Museum Veterinary Center, Philadelphia

Ming Li, Ph.D. awarded 2008

Ming Li, Ph.D. awarded 2008

Thesis Dissertation: Slit down-regulates CrGAP function to mediate axon repulsion in the embryonic Drosophila CNS

Current Position: Science Exchange Officer, Chinese Academy of Science

Long Yang, MD, Ph.D. awarded 2008

Long Yang, MD, Ph.D. awarded 2008

Thesis Dissertation: Regulation of Robo-mediated axon repulsion at the Drosophila Midline

Louis Flexner Neuroscience Thesis Prize Awarded 2009

Current Position: Staff Physician & Partner in Pathology, Carroll Hospital Center

David Garbe, Ph.D. awarded 2007

David Garbe, Ph.D. awarded 2007

Philadelphia Education Fund

Thesis Dissertation: Integration and regulation of attractive and repulsive axon guidance at the Drosophila Midline

Funding: T32 Training Program in Cell and Molecular Biology, T32 Training Program in Genetics

Current Position: Philadelphia Education Fund, Director of the McKinney Center for STEM Education

Research Specialists

Nicholas O'Neill

Nicholas O'Neill

2014-2016

Research: Genetic Screens for factors that promote axon growth across the midline

Current Position: Graduate Student, Bixby Lab, University of Miami

Katherine Blocklove

Katherine Blocklove

2016-2019

Research: The role of microtubule binding proteins during axon guidance at the midline

Current Position: Graduate School bound!

Undergraduate Students

Ethan Rohrbach

Ethan Rohrbach

2015-2017

Research: The control of midline axon guidance by transmembrane and secreted Semaphorins.

Current Position: Graduate Student in Neuroscience, UCLA

Henry Zhou

Henry Zhou

2016-2018

Research: The control of midline axon guidance by TAP, the Drosophila homolog of Neurogenin.

Current Position: Medical Student, Columbia University