@article{tai_mo_di_subramanian_gu_buse_gu_2014, title={Bio-lnspired Synthetic Nanovesicles for Glucose-Responsive Release of Insulin}, volume={15}, ISSN={["1526-4602"]}, DOI={10.1021/bm500364a}, abstractNote={A new glucose-responsive formulation for self-regulated insulin delivery was constructed by packing insulin, glucose-specific enzymes into pH-sensitive polymersome-based nanovesicles assembled by a diblock copolymer. Glucose can passively transport across the bilayer membrane of the nanovesicle and be oxidized into gluconic acid by glucose oxidase, thereby causing a decrease in local pH. The acidic microenvironment causes the hydrolysis of the pH sensitive nanovesicle that in turn triggers the release of insulin in a glucose responsive fashion. In vitro studies validated that the release of insulin from nanovesicle was effectively correlated with the external glucose concentration. In vivo experiments, in which diabetic mice were subcutaneously administered with the nanovesicles, demonstrate that a single injection of the developed nanovesicle facilitated stabilization of the blood glucose levels in the normoglycemic state (<200 mg/dL) for up to 5 days.}, number={10}, journal={BIOMACROMOLECULES}, author={Tai, Wanyi and Mo, Ran and Di, Jin and Subramanian, Vinayak and Gu, Xiao and Buse, John B. and Gu, Zhen}, year={2014}, month={Oct}, pages={3495–3502} } @article{zhao_liu_hsieh_wang_tai_joo_wang_gu_tang_2014, title={Clickable Protein Nanocapsules for Targeted Delivery of Recombinant p53 Protein}, volume={136}, ISSN={["0002-7863"]}, DOI={10.1021/ja508083g}, abstractNote={Encapsulating anticancer protein therapeutics in nanocarriers is an attractive option to minimize active drug destruction, increase local accumulation at the disease site, and decrease side effects to other tissues. Tumor-specific ligands can further facilitate targeting the nanocarriers to tumor cells and reduce nonspecific cellular internalization. Rationally designed non-covalent protein nanocapsules incorporating copper-free "click chemistry" moieties, polyethylene glycol (PEG) units, redox-sensitive cross-linker, and tumor-specific targeting ligands were synthesized to selectively deliver intracellular protein therapeutics into tumor cells via receptor-mediated endocytosis. These nanocapsules can be conjugated to different targeting ligands of choice, such as anti-Her2 antibody single-chain variable fragment (scFv) and luteinizing hormone releasing hormone (LHRH) peptide, resulting in specific and efficient accumulation within tumor cells overexpressing corresponding receptors. LHRH-conjugated nanocapsules selectively delivered recombinant human tumor suppressor protein p53 and its tumor-selective supervariant into targeted tumor cells, which led to reactivation of p53-mediated apoptosis. Our results validate a general approach for targeted protein delivery into tumor cells using cellular-responsive nanocarriers, opening up new opportunities for the development of intracellular protein-based anticancer treatment.}, number={43}, journal={JOURNAL OF THE AMERICAN CHEMICAL SOCIETY}, author={Zhao, Muxun and Liu, Yarong and Hsieh, Renee S. and Wang, Nova and Tai, Wanyi and Joo, Kye-Il and Wang, Pin and Gu, Zhen and Tang, Yi}, year={2014}, month={Oct}, pages={15319–15325} } @article{lu_mo_tai_sun_pacardo_qian_shen_ligler_gu_2014, title={Self-folded redox/acid dual-responsive nanocarriers for anticancer drug delivery}, volume={50}, ISSN={["1364-548X"]}, DOI={10.1039/c4cc07004f}, abstractNote={Self-folded redox/acid dual-responsive nanocarriers (RAD-NCs) are developed for physiologically triggered delivery of anticancer drugs. The evidenced redox/acid responsiveness, facile decoration of ligands, and active tumor-targeting capability of RAD-NCs suggest their potential as a promising formulation for tumor-targeted chemotherapy.}, number={95}, journal={CHEMICAL COMMUNICATIONS}, author={Lu, Yue and Mo, Ran and Tai, Wanyi and Sun, Wujin and Pacardo, Dennis B. and Qian, Chenggen and Shen, Qundong and Ligler, Frances S. and Gu, Zhen}, year={2014}, pages={15105–15108} }