@article{siwawannapong_nemeth_melander_rong_davis_taniguchi_carpenter_lindsey_melander_2022, title={Simple Dipyrrin Analogues of Prodigiosin for Use as Colistin Adjuvants}, volume={7}, ISSN={["1860-7187"]}, url={http://www.scopus.com/inward/record.url?eid=2-s2.0-85133558458&partnerID=MN8TOARS}, DOI={10.1002/cmdc.202200286}, abstractNote={Abstract}, number={16}, journal={CHEMMEDCHEM}, author={Siwawannapong, Kittipan and Nemeth, Ansley M. and Melander, Roberta J. and Rong, Jie and Davis, Jonathan R. and Taniguchi, Masahiko and Carpenter, Morgan E. and Lindsey, Jonathan S. and Melander, Christian}, year={2022}, month={Jul} } @article{wu_dou_nguyen_eppley_siwawannapong_zhang_lindsey_2022, title={Tailoring the AIE Chromogen 2-(2-Hydroxyphenyl)benzothiazole for Use in Enzyme-Triggered Molecular Brachytherapy}, volume={27}, ISSN={["1420-3049"]}, DOI={10.3390/molecules27248682}, abstractNote={A targeted strategy for treating cancer is antibody-directed enzyme prodrug therapy, where the enzyme attached to the antibody causes conversion of an inactive small-molecule prodrug into an active drug. A limitation may be the diffusion of the active drug away from the antibody target site. A related strategy with radiotherapeutics entails enzymatically promoted conversion of a soluble to insoluble radiotherapeutic agent, thereby immobilizing the latter at the target site. Such a molecular brachytherapy has been scarcely investigated. In distinct research, the advent of molecular designs for aggregation-induced emission (AIE) suggests translational use in molecular brachytherapy. Here, several 2-(2-hydroxyphenyl)benzothiazole substrates that readily aggregate in aqueous solution (and afford AIE) were elaborated in this regard. In particular, (1) the 2-(2-hydroxyphenyl) unit was derivatized to bear a pegylated phosphodiester that imparts water solubility yet undergoes enzymatic cleavage, and (2) a p-phenol unit was attached to the benzo moiety to provide a reactive site for final-step iodination (here examined with natural abundance iodide). The pegylated phosphodiester-iodinated benzothiazole undergoes conversion from aqueous-soluble to aqueous-insoluble upon treatment with a phosphatase or phosphodiesterase. The aggregation is essential to molecular brachytherapy, whereas the induced emission of AIE is not essential but provides a convenient basis for research development. Altogether, 21 compounds were synthesized (18 new, 3 known via new routes). Taken together, blending biomedical strategies of enzyme prodrug therapy with materials chemistry concerning substances that undergo AIE may comprise a step forward on the long road toward molecular brachytherapy.}, number={24}, journal={MOLECULES}, author={Wu, Zhiyuan and Dou, Jinghuai and Nguyen, Kathy-Uyen and Eppley, Jayden C. and Siwawannapong, Kittipan and Zhang, Yunlong and Lindsey, Jonathan S.}, year={2022}, month={Dec} }