Wanhao Chi, PhD
2025 Toffler Scholar | Postdoctoral Researcher, Northwestern University
Biography
Wanhao Chi’s scientific curiosity began not in a classroom, but outdoors. She grew up in a small town on China’s east coast, where her grandparents’ home included a modest yard filled with trees and insects. As a child, Chi spent hours watching cicadas emerge from the soil, climb tree trunks, and transform before her eyes. She observed patiently as their bodies hardened, wings unfolded, and colors changed. Long before she had the language for biology, she learned to pay attention.
“I was always curious,” Chi recalls. “I liked watching how things changed over time.”
That early fascination with living systems shaped her path. Chi gravitated toward biology in school and eventually majored in biochemistry as an undergraduate. She explored every branch she could, from plant biology to microbiology to molecular biology. Over time, one field stood out. Genetics offered something uniquely elegant: a way to explain outcomes through underlying rules.
“Genetics felt beautiful,” she says. “If you understand the mechanism, you can predict what happens.”
She pursued a master’s degree in genetics in China, then decided to continue her training in the United States. Chicago became her academic home, where she immersed herself in genetics and genomics during her doctoral studies. While her formal training advanced, Chi’s approach remained grounded in the same instinct that guided her as a child. She watched closely, noticed anomalies, and asked why.
Biography
Wanhao Chi’s scientific curiosity began not in a classroom, but outdoors. She grew up in a small town on China’s east coast, where her grandparents’ home included a modest yard filled with trees and insects. As a child, Chi spent hours watching cicadas emerge from the soil, climb tree trunks, and transform before her eyes. She observed patiently as their bodies hardened, wings unfolded, and colors changed. Long before she had the language for biology, she learned to pay attention.
“I was always curious,” Chi recalls. “I liked watching how things changed over time.”
That early fascination with living systems shaped her path. Chi gravitated toward biology in school and eventually majored in biochemistry as an undergraduate. She explored every branch she could, from plant biology to microbiology to molecular biology. Over time, one field stood out. Genetics offered something uniquely elegant: a way to explain outcomes through underlying rules.
“Genetics felt beautiful,” she says. “If you understand the mechanism, you can predict what happens.”
She pursued a master’s degree in genetics in China, then decided to continue her training in the United States. Chicago became her academic home, where she immersed herself in genetics and genomics during her doctoral studies. While her formal training advanced, Chi’s approach remained grounded in the same instinct that guided her as a child. She watched closely, noticed anomalies, and asked why.
Research Focus
During her early research career, Chi worked as a laboratory technician while developing independent projects. One moment proved pivotal. While studying fruit flies, she noticed that a specific strain died prematurely, while others thrived under identical conditions. Rather than dismissing the observation, she pursued it.
Using positional cloning, Chi traced the phenomenon to a small mutation in a single gene essential for vitamin B6 metabolism. At the time, few researchers had explored this pathway in depth. A literature search revealed something striking: in humans, mutations in the same gene caused severe epilepsy and neurodevelopmental disorders in infants.
“That connection changed everything,” Chi says. “I realized this wasn’t just a fly problem.”
Motivated by that insight, she committed fully to a research career. She generated animal models, conducted mechanistic studies, and began to focus more directly on the nervous system. Although the shift from genetics to neuroscience appeared dramatic, Chi saw continuity.
“Genetics is a tool,” she explains. “It lets you ask precise questions in any system.”
For Chi, the nervous system presented the most compelling challenge. Unlike other tissues, neurons do not regenerate once lost. Their complexity, vulnerability, and central role in identity made them impossible to ignore.
“The brain is incredibly complex,” she says. “That makes it harder, but also more important.”
After completing her PhD, Chi joined a research-intensive neuroscience lab as a postdoctoral fellow, where she now studies neurodegenerative disease using human stem cell–derived neurons. Her work centers on neuronal excitability, the delicate balance that allows neurons to fire appropriately without tipping into dysfunction.
Chi’s current research on amyotrophic lateral sclerosis and related neurodegenerative conditions addresses critical challenges in understanding disease mechanisms. By exploring how neuronal excitability influences neurodegeneration-a process linked not only to epilepsy but also to Alzheimer’s and ALS-her work aims to uncover targets for intervention that could benefit millions affected worldwide.
A central focus of her work involves the protein TDP-43, which becomes dysfunctional in the vast majority of ALS cases and in a significant proportion of Alzheimer’s and frontotemporal dementia cases. In healthy neurons, TDP-43 resides in the nucleus, where it regulates RNA splicing. In disease, it exits the nucleus, triggering widespread mis-splicing of downstream genes.
Rather than targeting a single affected gene, Chi asks a broader question: what if disease progression reflects the combined effect of many minor disruptions occurring simultaneously?
Supported by the Toffler Scholar Award, Chi is developing innovative antisense oligonucleotide strategies that enable simultaneous targeting of multiple disease-relevant genes. Working with chemistry collaborators, she tests linked molecular designs that can correct mis-splicing across numerous pathways simultaneously. Her experiments use human neurons derived from induced pluripotent stem cells, allowing her to model disease processes directly in human tissue.
“This is about restoring balance. Neurons fail when too many systems break at once.”
- Wanhao Chi, PhD
“Neurons develop like people,” she adds. “They need time.”
Beyond technical innovation, Chi values the intellectual freedom her funding provides. She notes that the current research environment often discourages high-risk ideas. The Toffler Scholar Award allowed her to pursue a bold, unconventional approach at a critical stage of independence.
“This support arrived at exactly the right moment,” she says. “It gave me space to explore something new.”
Chi also values the community fostered by the Toffler Trust. Through the program, she has connected with researchers across disciplines, from mitochondrial biology to sleep neuroscience. These conversations reinforce her belief that complex diseases demand collaborative thinking.
“No single perspective is enough,” she says. “We need to connect ideas,” fostering a sense of hope and motivation for collaborative scientific advancement.
Looking ahead, Chi aims to elucidate how neuronal excitability contributes to neurodegeneration and whether restoring neural balance can slow disease progression. Her goal is to translate mechanistic insights into therapeutic strategies, emphasizing that meaningful progress depends on deep understanding rather than immediate cures.
For Chi, science remains an extension of the curiosity that first drew her to watch insects transform in her grandparents’ yard. It is an act of attention, patience, and humility.
“If you watch carefully enough,” she says, “systems tell you what’s wrong.”