Staff

TAN Roger S.Assistant Professor

Laboratory
Laboratory of Advanced Chemical Biology
Research Theme
Design and Synthesis of Nanoparticle-glycoconjugate Drug Delivery Systems.
Research Keywords

Nanoparticle-based Delivery Systems, Glyconanotechnology, Glycoimmunology, Glycopeptide Synthesis, Glycan Synthesis, Drug Delivery, Drug Discovery.

Overview of Research

Glycans mediate virtually all biological processes, such as cell-pathogen interaction, disease progression, and immune response modulation. Delivering therapeutic agents to alter these processes has been very challenging due to the exquisitely complex nature of the biological systems. Our focus is on Glycoimmunology and Nanoparticle-based Drug Delivery Systems (NDDS) to find the most suitable and efficient way of delivering these therapeutic agents, with minimal adverse effects and perturbation on the biological systems, by taking advantage of these mediator glycans. We have established a delivery platform that enabled us to evade endolysosomal sequestration during intracellular delivery and successfully allowed glycan-guided organelle targeting. Coupled with this platform, we aim to fine-tune this technique and design a unique and comprehensive delivery system using a ‘bottom-up’ approach (from intracellular to systemic delivery).

Charge

Message

Join us in exploring Glycoscience for Drug Discovery and Drug Delivery!

Representative Publications

・Roger S. Tan, Glycosylated and non-glycosylated quantum dot-displayed peptides trafficked indiscriminately inside lung cancer cells but discriminately sorted in normal lung cells: An indispensable part in nanoparticle-based intracellular drug delivery, Asian J Pharm. Sci. 13 (3), 197-211 (2018).

・Roger S. Tan, Modulation of Cancer Cell Proliferation by unusually produced β(1-6) linked Mannan-oligosaccharides and β(1-6) linked Galacto-oligosaccharides using β–galactosidase from Aspergillus oryzae. International Journal of Advanced and Applied Sciences, 5(4): 30-41 (2018).

・Roger S. Tan, Hinou H., Nishimura S-I., Novel β-galactosynthase–β-mannosynthase dual activity of β-galactosidase from Aspergillus oryzae uncovered using monomer sugar substrates, RSC Adv., 6, 50833-50836 (2016).

・Roger S. Tan, Naruchi K., Amano M., Hinou H., Nishimura S-I., Rapid Endolysosomal Escape and Controlled Intracellular Trafficking of Cell Surface Mimetic Quantum-Dots-Anchored Peptides and Glycopeptides, ACS Chem. Biol. 10, 2073-2086 (2015).

Note

<Office Hour>
– Time: Anytime during the lecture period
– Place: Frontier-AMLS, 6F
Please contact in advance by E-mail.
E-mail: roger.tan[at]sci.hokudai.ac.jp

Affiliation