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Warren L. Grayson, PhD

Warren Grayson
Research Focus Area(s): Translational Cell and Tissue Engineering
Research Interests: Bone and skeletal muscle regeneration, stem cells, biomaterials, 3D-printing, bioreactors, animal models
Research Interests

Research Interests

Our lab seeks to address the challenges associated with engineering functional craniofacial and orthopaedic constructs for use in therapeutic applications. We are developing innovative methods using stem cells to create patient-specific grafts with the necessary biological and mechanical characteristics to facilitate functional in vivo integration.

We employ engineering techniques to design advanced bioreactors capable of maintaining cell viability in large tissue constructs.Bioreactors also enable precise control of the cellular microenvironment and can uniquely address fundamental questions regarding the application of biophysical cues to regulate stem cell differentiation, namely: How do the cells integrate multiple signals into decisions regarding cell fate? Can we regulate the spatial and temporal application of specific cues so that cells in different regions of the tissue constructs differentiate along diverse lineages simultaneously or sequentially? What signals are required to guide the hierarchical organization of these multiple cell types on various length scales?

Addressing the underlying mechanisms that regulate tissue development will enable us to engineer complex functional tissue constructs for regenerative medicine applications as well as to create relevant in vitro disease models.

Titles & Affiliations


  • Professor, Biomedical Engineering

Affiliated Centers & Institutes



  • Postdoc, Biomedical Engineering, Columbia University, 2005-2009
  • PhD, Biomedical Engineering, Florida State University, 2005
  • BS, Chemical and Proc. Engineering, The University of the West Indies, Trinidad, 1998
Faculty News

Recent Highlights

  • February 24, 2018
    To wrap up National Engineers Week, Warren Grayson, associate professor of biomedical engineering at Johns Hopkins University, encouraged students at Barclay Elementary/Middle School to think like an engineer for an afternoon.
  • July 18, 2016
    Dr. Grayson's new approach to craniofacial bone surgery combines 3D printing, cell signaling techniques, and a patient's own stem cells to engineer a living, anatomically precise facial bone.
  • June 29, 2015
    Four of these promising researchers are assistant professors within the Department of Biomedical Engineering including Warren Grayson, Jordan Green, Feilim Mac Gabhann, and Sridevi Sarma.


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