Honors Theses

Date of Award

5-2026

Document Type

Undergraduate Thesis

Degree Name

BS

Department

Biology

Faculty Mentor

Simon Grelet, Ph.D.

Advisor(s)

Marie Migaud, Ph.D. and Joel Andrews, Ph.D.

Abstract

Tumor innervation has emerged as a critical feature of cancer progression, with increased nerve density correlating with enhanced aggressiveness, metastatic dissemination, and poor clinical outcome. However, the functional contribution of neurons to tumor biology remains incompletely defined. We recently identified the intercellular transfer of mitochondria from neurons to cancer cells as a mechanism that promotes tumor progression. We therefore hypothesized that disruption of this transfer could attenuate tumor aggressivity. To directly investigate this process, we developed an approach to isolate mitochondria from donor cells and transplant them into recipient cancer cells independently of canonical cell-cell interactions. Transferred mitochondria were tracked using fluorescent labeling before using a highly sensitive, transfer-dependent reporter system suitable for high-throughput applications. Once established, this platform will enable precise control over mitochondrial dose and delivery, allowing systematic evaluation of the phenotypic consequences in recipient cells. Together, we aim to establish a framework to dissect the functional impact of neuron-derived mitochondria and to refine synthetic biology tools for monitoring intercellular organelle transfer.

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