Gene Therapy & AAV Engineering

Adeno-associated virus (AAV) vectors have emerged as one of the leading platforms for in vivo gene delivery, enabling the development of transformative therapies for genetic diseases. However, widespread clinical adoption remains constrained by manufacturing challenges, including low vector yields, inefficient genome packaging, producer cell stress, and high production costs.

Our research seeks to address these challenges by understanding and engineering the biological systems that drive AAV production. We investigate interactions between viral components and host cells to uncover factors that influence vector productivity, quality, and scalability. Through approaches spanning host cell engineering, systems biology, protein engineering, and high-throughput screening, we identify opportunities to improve manufacturing performance and develop more efficient production platforms. Ultimately, our goal is to advance the technologies needed to make gene therapies more accessible, reliable, and scalable for clinical applications.

  • Tailored Cell Cycle Modulation Enhances AAV Manufacturing: Balancing Arrest with Adaptive Stress Responses

    Junneng Wen, Justin Sargunas, Dylan Carman, Noam Greenshtein, Michael J. Betenbaugh

    January 22, 2026

  • Unraveling Cytotoxicity in HEK293 Cells During Recombinant AAV Production for Gene Therapy Applications

    Pranay Ladiwala, Nelson Ndahiro, Pricila Hauk, Junneng Wen, Justin Sargunas, Yu-Ju Chen, Erik Barton, Michael J. Betenbaugh

  • Deep Mutational Scanning of the AAV rep Gene to Assess Effects on DNA Packaging in Expi293F Suspension Culture

    Shaun Spisak, Nelson Ndahiro, Michael J. Betenbaugh,
    Marc Ostermeier

  • Continuous Purification of a Parvovirus Using Two Aqueous Two-phase Extraction Steps

    Natalie M. Nold, Sheridan Waldack, Grace James, Trisha Colling, Lynn Manchester, Taravat Sarvari, Amanda Bekkala, Seth A. Kriz, Madison Baldwin, Emily Agustin-Mazariegos, Michael J. Betenbaugh, Caryn L. Heldt

  • Exploring Alternative Oncogene-free Mammalian Hosts for Adeno-associated Virus Production

    Seongkyu Yoon, Nelson Ndahiro, Junneng Wen, Hung Tran, Ashli Polanco, Michael Betenbaugh