Biography: Dr. Liu received his doctoral degree in molecular biology (under Dr. Winston Salser) from the University of California, Los Angeles and post-doctoral training in molecular parasitology (sleeping sickness trypanosomiasis, under Dr. Piet Borst) at the University of Amsterdam and the Netherlands Cancer Institute. After research in the field of cancer treatment with generated chimeric antibodies in Biotech, he joined the faculty in the Department of Urology, and later in the Institute of Stem Cell and Regenerative Medicine at the University of Washington, Seattle. His primary research concerns prostate and bladder cancer in intercellular interaction, loss of cancer differentiation, biomarkers and early detection, and treatment strategy development. His contributions to the field are reviewed: 1. Methodology in gene expression analysis and cellular differentiation: Prostate cancer research: tools, cell types, and molecular targets (2024). 2. Identification of signaling molecules and their effect on differentiation: Cell-to-cell communication in prostate differentiation and cancer (2024). 3. Tissue regeneration: How to rejuvenate the prostate damaged by cancer (2025). 4. Emergence of stem-like cancer cells: The cancer stem cell concept as applied to prostate cancer (2026). 5. The non-mutation centric hypothesis of cancer: Absent proper cell-to-cell signaling as the driver of prostate cancer development and disease progression (2026).