@article{TEXTUAL, recid = {10963}, author = {Ni, Kaiyuan and Lan, Guangxu and Guo, Nining and Culbert, August and Luo, Taokun and Wu, Tong and Weichselbaum, Ralph R. and Lin, Wenbin}, title = {Nanoscale metal-organic frameworks for x-ray activated in situ cancer vaccination}, journal = {Science Advances}, address = {2020-10-02}, number = {TEXTUAL}, abstract = {Cancer vaccines have been actively pursued to bolster antitumor immunity. Here, we designed nanoscale metal-organic frameworks (nMOFs) as locally activable immunotherapeutics to release danger-associated molecular patterns (DAMPs) and tumor antigens and deliver pathogen-associated molecular patterns (PAMPs) for in situ personalized cancer vaccination. When activated by x-rays, nMOFs effectively generate reactive oxygen species to release DAMPs and tumor antigens while delivering CpG oligodeoxynucleotides as PAMPs to facilitate the maturation of antigen-presenting cells. Together, DAMPs, tumor antigens, and PAMPs expand cytotoxic T cells in tumor-draining lymph nodes to reinvigorate the adaptive immune system for local tumor regression. When treated in combination with an immune checkpoint inhibitor, the local therapeutic effects of nMOF-based vaccines were extended to distant tumors via attenuating T cell exhaustion. Our work demonstrates the potential of nMOFs as x-ray-activable in situ cancer vaccines to awaken the host's innate and adaptive immune systems for systemic antitumor immunity.}, url = {http://knowledge.uchicago.edu/record/10963}, }