Ken-Ichi Takemaru

Ken-Ichi Takemaru is a Professor in the Department of Pharmacological Sciences at Stony Brook University's School of Medicine. His research focuses on the molecular mechanisms of cell signaling, ciliogenesis, and mammalian development. With expertise in both molecular biology and advanced imaging techniques, Dr. Takemaru's laboratory investigates the roles of ciliary proteins in normal organ development and disease pathogenesis using mouse models.

Dr. Takemaru earned his Ph.D. from the Graduate University for Advanced Studies in Japan and completed postdoctoral training at the University of Washington. His research program has evolved from early work on transcriptional coactivators (including the discovery of Chibby as a nuclear β-catenin antagonist) to his current focus on cilia biology and its implications for human disease.

His laboratory conducts four interconnected research programs: (1) Molecular functions of ciliary proteins during mammalian development and diseases, particularly focusing on CEP164 and its role in hydrocephalus and male fertility; (2) Role of the ciliary protein Chibby1 and its family members in mammalian spermatogenesis; (3) Super-resolution and live-cell imaging of ciliary proteins using confocal, SIM, STORM, TEM, SEM, and cryo-ET; and (4) Vesicle trafficking and membrane remodeling during ciliogenesis. His work bridges basic cell biology with clinical implications for ciliopathies affecting multiple organ systems including the brain, kidneys, pancreas, respiratory tract, and reproductive organs.

Analysis of Dr. Takemaru's recent publications reveals a consistent focus on cilia biology and its connections to human disease. His research has progressively deepened our understanding of how ciliary proteins regulate organ development and function, with particular emphasis on multiciliated cells. The work spans from fundamental molecular mechanisms (protein interactions, membrane remodeling) to physiological outcomes (fertility, respiratory function, pancreatic homeostasis). A notable trend is the expansion from studying primary cilia to multicilia and their specialized functions in different tissues, reflecting growing recognition of the diverse roles of ciliary structures in human health.

Dr. Takemaru's laboratory employs a comprehensive approach to cilia research, combining genetic mouse models with advanced imaging techniques to visualize subcellular structures at unprecedented resolution. His team has developed several important mouse models lacking specific ciliary genes, which have proven invaluable for studying ciliopathy phenotypes across multiple organ systems. The laboratory also maintains a collection of plasmids available through Addgene, demonstrating their commitment to sharing research tools with the broader scientific community.