Mina Bissell

Mina Bissell was born in 1940 in Tehran, Iran. She completed her undergraduate education in Iran before emigrating to the United States, where she earned her PhD in bacteriology from Harvard University. She spent most of her distinguished career at Lawrence Berkeley National Laboratory, where she became a Distinguished Scientist and served as director of its Life Sciences Division.

Bissell's central scientific insight — developed over decades and initially rejected by the mainstream — is that cancer is not simply a disease of the gene, but a disease of the relationship between cells and their three-dimensional microenvironment. She demonstrated experimentally that malignant tumor cells placed into a normal tissue context can revert to non-malignant behavior, and that altering the extracellular matrix (ECM) can activate or suppress oncogenes. This challenged the then-dominant view that cancer is solely driven by mutations.

Her laboratory pioneered the use of 3D tissue culture models that recapitulate the in vivo architecture of organs, replacing the flat 2D petri dish models that had dominated cell biology for decades. These 3D models revealed that gene expression, cell polarity, and cellular function are profoundly shaped by spatial organization and ECM signaling — findings with enormous implications for understanding drug resistance, metastasis, and the failure of cancer therapies.

Bissell received the Breast Cancer Research Foundation Award, the Vilcek Prize in Biomedical Science, the Brinker Award for Scientific Distinction, and multiple honorary doctorates. She has been a fellow of the American Association for the Advancement of Science and the National Academy of Sciences. Her career is a testament to the power of challenging foundational assumptions, even at great professional cost, when the experimental evidence demands it.