University of California San Francisco

Kyle Cromer, PhD

Kyle Cromer PhD
Kyle Cromer, PhD

Assistant Professor of Surgery
Division of Pediatric Surgery

Address

35 Medical Center Way, #900D
San Francisco, CA 94143
United States

    Biography

    While we have long known the location of disease-causing mutations in the genome, the discovery of CRISPR finally gave us the ability to correct these typos back to what they should be in healthy patients. While this effort has yielded novel therapies in the clinic, in my own lab I want to look beyond simply correcting DNA typos and instead use genome editing to introduce novel functions into cells for therapeutic purposes.
    Examples include:

    • Engineering red blood cells to deliver novel protein payloads
    • Creating genome editing strategies that bias stem cell differentiation to produce clinically relevant cell types
    • Engineering kill switches to prevent differentiation into unwanted cell types
    • Developing novel ways to regulate therapeutic protein stability and expression using small molecules
    • Multiplexing editing in order to introduce multiple genome editing events simultaneously (such as correcting a disease-causing mutation and adding a kill switch that could be activated in the case of an adverse event)

    With special focus on hematopoietic stem cells and red blood cells, my main goal is to close the gap between synthetic biologists and clinicians in order to address current bottlenecks in treating the hemoglobinopathies and other blood disorders. While this is my current focus, the tools I am developing are cell type- and disease-agnostic and I am always open to expanding these concepts into new areas.

    Education

    Institution Degree Dept or School End Date
    Stanford University Instructor Pediatrics 05/2022
    Stanford University Postdoc Pediatrics 06/2020
    Harvard Medical School Postdoc Genetics 05/2016
    Yale University PhD Genetics 05/2014

    Awards & Honors

    Award Conferred By Date
    Director's New Innovator Award NIH 2025/2030
    Mary Anne Koda-Kimble Award UCSF Center for Collaborative Innovation 2025/2026
    Pilot Award UCSF Center for Research in Transfusion Medicine & Cell Therapies 2025/2026
    Deleage Prize Deleage Endowment 2025/2025
    Mary Anne Koda-Kimble Award UCSF Center for Collaborative Innovation 2024/2025
    Catalyst Award UCSF Innovation Ventures 2024/2025
    Junior Faculty Scholar Award American Society of Hematology 2023/2026
    New Frontier Research Award UCSF Program for Breakthrough Biomedical Research 2023/2024
    Career Development Award American Society of Gene & Cell Therapy 2022/2022
    Honorary Mention Prix Ars Electronica 2021/2021
    Star Mentor Award Stanford Bio-X 2021/2021

    Grants and Funding

    • Engineering enhanced erythropoiesis for red blood cell disorders | NIH | 2025-09-15 - 2030-08-31 | Role: PI
    • Enrichment of erythroid cells using truncated EPO receptor | American Society of Hematology | 2023-07-01 - 2026-06-28 | Role: Principal Investigator
    • Developing gene therapy strategies to correct a-thalassemia | NIH NHLBI | 2022-01-01 - 2025-12-31 | Role: Co-Investigator
    • Developing base editor-mediated correction strategies for a-thalassemia | UCSF | 2023-07-01 - 2025-06-28 | Role: Principal Investigator
    • Development of inducible signaling receptors to increase production of clinically relevant cell types | UCSF Program for Breakthrough Biomedical Research | 2023-06-01 - 2024-05-30 | Role: Principal Investigator
    • Developing a CRISPR/AAV-mediated genome editing strategy to correct a-thalassemia | American Society of Gene & Cell Therapy | 2022-01-01 - 2022-12-31 | Role: Principal Investigator

    Publications

    MOST RECENT PUBLICATIONS FROM A TOTAL OF 10
    1. In vivo site-specific engineering to reprogram T cells.
      Nyberg WA, Bernard PL, Ngo W, Wang CH, Ark J, Rothrock A, Borgo GM, Kimmerly GR, Jung JH, Allain V, Hamilton JR, Baldwin A, Stickels R, Wyman S, Khan SH, Lang S, Marsh D, Almudhfar N, Novick C, Mortazavi Y, Zhang S, AbdElwakil MM, Sandoval LR, Hwang S, Chu SN, Jung H, Liu C, Sharma D, McCreary T, Li Z, Satpathy AT, Carnevale J, Rutishauser RL, Cromer MK, Roybal KT, Dodgson SE, Doudna JA, Asokan A, Eyquem J| | PubMed
    2. Novel humanized loss-of-function NF1 mouse model of juvenile myelomonocytic leukemia.
      Sinha R, Patil RV, Romano R, Sharma D, Lee E, Perriman R, Takeda S, Lesch BJ, Yao Z, Liu YL, Cromer MK, Porteus MH, Bertaina A| | PubMed
    3. Mobilization meets antibody conditioning: A path toward safer engraftment.
      Cromer MK| | PubMed
    4. Lentiviral vectors for hematopoietic stem cell gene therapy restore α-globin expression in α-thalassemia red blood cells.
      Segura EER, Hart K, Campo Fernandez B, Brown D, Tam K, Gutierrez Garcia A, Seigneurbieux E, Li K, Mulumba C, Blakely E, Masiuk K, Sinha R, Sharma D, Everett J, Hogenauer M, Cromer MK, Bushman F, MacKenzie TC, Kohn DB| | PubMed
    5. Protocol for efficient CRISPR/AAV-mediated genome editing and erythroid differentiation of human hematopoietic stem and progenitor cells.
      Sharma D, Sinha R, Lesch BJ, Cromer MK| | PubMed
    6. Highly efficient in vivo hematopoietic stem cell transduction using an optimized self-complementary adeno-associated virus.
      Charlesworth CT, Homma S, Amaya AK, Dib C, Vaidyanathan S, Tan TK, Miyauchi M, Nakauchi Y, Suchy FP, Wang S, Igarashi KJ, Cromer MK, Dudek AM, Amorin A, Czechowicz A, Wilkinson AC, Nakauchi H| | PubMed
    7. Engineering synthetic signaling receptors to enable erythropoietin-free erythropoiesis.
      Shah AP, Majeti KR, Ekman FK, Selvaraj S, Sharma D, Sinha R, Soupene E, Chati P, Luna SE, Charlesworth CT, McCreary T, Lesch BJ, Tran T, Chu SN, Porteus MH, Kyle Cromer M| | PubMed
    8. Dual α-globin-truncated erythropoietin receptor knockin restores hemoglobin production in α-thalassemia-derived erythroid cells.
      Chu SN, Soupene E, Sharma D, Sinha R, McCreary T, Hernandez B, Shen H, Wienert B, Bowman C, Yin H, Lesch BJ, Jia K, Romero KA, Kostamo Z, Zhang Y, Tran T, Cordero M, Homma S, Hampton JP, Gardner JM, Conklin BR, MacKenzie TC, Sheehan VA, Porteus MH, Cromer MK| | PubMed
    9. Enhancement of erythropoietic output by Cas9-mediated insertion of a natural variant in haematopoietic stem and progenitor cells.
      Luna SE, Camarena J, Hampton JP, Majeti KR, Charlesworth CT, Soupene E, Selvaraj S, Jia K, Sheehan VA, Cromer MK, Porteus MH| | PubMed
    10. Lineage-tracing hematopoietic stem cell origins in vivo to efficiently make human HLF+ HOXA+ hematopoietic progenitors from pluripotent stem cells.
      Fowler JL, Zheng SL, Nguyen A, Chen A, Xiong X, Chai T, Chen JY, Karigane D, Banuelos AM, Niizuma K, Kayamori K, Nishimura T, Cromer MK, Gonzalez-Perez D, Mason C, Liu DD, Yilmaz L, Miquerol L, Porteus MH, Luca VC, Majeti R, Nakauchi H, Red-Horse K, Weissman IL, Ang LT, Loh KM| | PubMed