About the Editor Alexander Timoshenko is an Assistant Professor at the University of Western Ontario, London, Canada. He earned all his doctoral degrees at the Belarusian State University (Minsk, Belarus) and completed his postdoctoral and visiting scholar research in Germany (Marburg University, Ludwig-Maximilian University, and Thoraxklinik-Heidelberg) and Canada (the University of Western Ontario). The main areas of his research expertise include biological activity of animal and plant lectins, cell biology of galectins, cell aggregation, molecular mechanisms of cellular stress responses, reactive oxygen species and redox-regulation, cancer biology, lymphangiogenic factors, innate immunity and neutrophils. His current research program explores the role of galectins in regulating cell stemness and differentiation considering O-GlcNAc-dependent mechanisms.