People

Gustavo M. Silva, PhD

Head of the laboratory - Jack H. Neely Associate Professor

Gustavo is a biologist, who obtained his undergraduate and PhD degrees from the University of Sao Paulo, and had his postdoctoral training with Christine Vogel in the Center for Genomics and Systems Biology at New York University. His research interests revolve around the role of protein ubiquitination in cell fate, stress, aging, and neurological diseases. Gustavo has been inducted to the Bass Society of Fellows at Duke for excellence in research and teaching and has received the Dean's Award for Excellence in Mentoring. He is a heavily invested in education, equity, and transformation of higher education. He is also the founder and director of the Black Think Tank at Duke.

Beyond science, Gustavo enjoys listening to music, playing soccer, cooking, trying new flavors, and reading sociology.

Scholars@Duke profile

contact: gustavo.silva[at]duke[dot]edu

Blanche Cizubu

Research Scientist/ Lab Manager

Blanche obtained her bachelor’s degree in Biochemistry from the University of Minnesota Twin Cities. She is always exploring new interests but is currently working on the deubiquitinating enzyme Ubp2 and how it regulates translation during stress. She is considering obtaining her CCRP certification and transitioning into clinical research.

In her free time, Blanche enjoys reading, talking to her family, exploring new places, and watching her comfort TV shows.

contact: blanche.cizubu[at]duke[dot]edu

Géssica Cabral Barros, PhD

Postdoctoral fellow

Géssica received her bachelor’s in Biochemistry and her Master’s degree in Agricultural Microbiology from the Federal University of Viçosa. She obtained her PhD degree in Biological Chemistry from Federal University of Rio de Janeiro. Her current interest is to understand the role of ribosome ubiquitination in translation control under oxidative stress conditions.

Outside of the lab, Géssica enjoys going to the gym, watching movies and spending time with her family and friends.

contact: gessica.cabral.barros[at]duke[dot]edu

Tonie Farris, PhD

Postdoctoral fellow

Tonie received her bachelor’s degree in Biology from Tennessee State University. She obtained her PhD in Biomedical Sciences from Meharry Medical College. Her research interest are in understanding cellular and molecular mechanisms of developmental and age-related neurological diseases.

In her free time, Tonie enjoys spending time with family, spending time in nature, gardening, and listening to music.

contact: tonie.farris[at]duke[dot]edu

Clara dos Santos

Graduate Student

Clara received her bachelor’s degree in Biology from the University of São Paulo, Brazil, and is currently a PhD student in the Program in Biology at Duke University. Her research focuses on how genetic perturbations influence cellular energy allocation, with particular emphasis on the metabolic adaptations cells undergo to maintain homeostasis under changing conditions.

In her free time, Clara enjoys cooking and baking, spending time with friends, and learning about different cultures.

contact: clara.dossantos[at]duke[dot]edu

Carl Manner (they/them)

Graduate Student

Carl’s is a PhD candidate at Duke and with the Silva lab, they study the functional genomics of cellular responses to stress using subgenomic CRISPR screening methods. With Greg Wray’s and David McClay’s labs, they develop novel functional genomic tools, transgenesis methods, and viral vectors for non-model organisms. Scientifically, Carl is passionate about tech development, complex data analyses, and the development of high-quality, high-value data resources.

Beyond the lab, Carl is passionate about anthropogenic climate change and marine ecosystem preservation, mutual aid, community care, and food and housing security. They're an avid scuba diver, and a voracious consumer of music and poetry. They sew and crochet, obsess over their houseplants, and are a lover of dancing and wild places.

contact: carl.manner[at]duke[dot]edu

Sharan Surya

Graduate Student

Sharan is a PhD student in the Department of Biology at Duke. He did his Bachelor’s and Master’s degrees in Biology at IISER Bhopal, India. He is interested in understanding how oxidative stress causes sequence-specific ribosome pausing.

In his free time, Sharan likes to watch dramas, listen to music, and cook new recipes

contact: sharan[dot]sekarmanjula[at]duke[dot]edu

Sebastián Borrero Villabol

Graduate Student

Sebastián received his bachelor’s degree in Industrial Microbiology from the University of Puerto Rico - Mayagűez and is now pursuing his PhD in the University Program in Genetics and Genomics here at Duke. Sebastián is interested in understanding how the dysfunction of enzymes critical for ubiquitination play a role in the development of intellectual disabilities.

Outside of the lab, Sebastián enjoys baking, playing sports, and hanging out with friends.

contact: sebastian[dot]borrerovillabol[at]duke[dot]edu

Neil Nimmagadda

Undergraduate Student

Neil is a rising junior at Duke University, pursuing a major in neuroscience and a minor in computational biology/bioinformatics on the pre-medical track. He is currently interested in elucidating the key protein players and pathways involved in the ubiquitin-dependent mitophagy pathway, focusing on how ubiquitin ligases and autophagy receptors coordinate the recognition and clearance of dysfunctional mitochondria.

In his free time, he enjoys weightlifting, listening to music, and traveling.

Daniel Deng

Undergraduate Student

Daniel is an undergraduate at Duke University planning to major in Biology on the pre-med track. He is interested in microbiology research and enjoys the challenges of characterizing unknown proteins/genes and elucidating unclear pathways and mechanisms. He hopes to one day become an ENT surgeon and operate on musicians with hearing and vocal disorders.

In his free time, Daniel enjoys making and listening to music, singing with his acapella group, going to the gym, and enjoying the outdoors.

Alumni

Postdocs:

Nate Snyder, PhD, 2018-2021, post lab:  Research Project Manage at Duke

Andrew Gorman, PhD, 2018-2019, post lab: Scientific Advisor at Intellectual Property Law Firm

Brian Gregory, PhD (2019)

 

Graduate Students:

Austin Maduka, 2019-2024, (F30 NIH fellow, BWF GDEP), post lab: Med School, Residency at UTSW

Lubhanshi Garg - Visiting Scholar 2024-2025, (Neru Fulbright Fellow)

Silas Almeida - Visiting Scholar 2024, post lab: PhD student Duke CMB

Shannon Dougherty, 2018-2024, post lab: Teaching Instructor (Duke Biology)

 

Undergraduate Students:

Jorge Mato Frontela,  2024-2026, (Faculty Scholar, ECH Excellence in Biology), post lab: PhD student MIT

Alyssa Estrada, 2024-2026,  post lab: Gap year/Med School

Zaila Avant-Garde, High School Student (Summer 2025), post lab: Undergraduate student at University of Maryland

Elizabeth Lynfatt, Undergraduate Student (Summer 2024)

Sofia Guerrero, 2020-2024, (Goldwater Scholar), post lab: PhD at Stanford Neuroscience

Dinachi Okonkwo, 2021-2023 (Faculty Scholar, ECH Excellence in Biology), post lab: Med School at Duke

Wigdan Hissien, summer 2023 SURF

Max Bucklan, 2019-2021, post lab: PhD at Duke UPGG

Julia Marshall, 2018-2020, post lab: MPhil student at Cambridge

M. Sapphire Bowen-Kauth, summer 2019 SROP, post lab: MD/PhD at UNC CH

Valeria Santa Melendez, Summer 2018 SROP, post lab: PhD student at Purdue

 

Staff Support:

Meg Atchison - Administrative Assistant, 2025

Chia-Yu Chen - Biostatistician 2024, post lab: Postdoc (Caltech)

Ömür Kayikçi, PhD - Lab Manager, 2023-2024

Vanessa Simões, MSc, Lab Manager 2017-2022, Consultant at McKinsey & Co

Natori Maske, 2021-2022, Lab Technician

Lana Harley, 2019-2021, Lab Technician