Nanocapsules of oxalate oxidase for hyperoxaluria treatment

Ming Zhao, Duo Xu, Di Wu, James W. Whittaker, Robert Terkeltaub, Yunfeng Lu

Research output: Contribution to journalArticlepeer-review

10 Scopus citations


Enzyme therapeutics have great potential for the treatment of systemic disorders such as urolithiasis and nephrocalcinosis, which are caused by the excessive accumulation of oxalate. However, exogenous enzymes have short half-lives in vivo and elicit high immunogenicity, which largely limit the therapeutic outcomes. Herein, we report a delivery strategy whereby therapeutic enzymes are encapsulated within a thin zwitterionic polymer shell to form enzyme nanocapsules. The strategy is exemplified by the encapsulation of oxalate oxidase (OxO) for the treatment of hyperoxaluria, because as-synthesized OxO nanocapsules have a prolonged blood circulation half-life and elicit reduced immunogenicity. Our design of enzyme nanocapsules that enable the systemic delivery of therapeutic enzymes can be extended to various biomedical applications. [Figure not available: see fulltext.].

Original languageEnglish (US)
Pages (from-to)2682-2688
Number of pages7
JournalNano Research
Issue number5
StatePublished - May 1 2018


  • enzyme therapeutics
  • hyperoxaluria
  • long circulation
  • nanomedicine
  • oxalate oxidase
  • protein delivery

ASJC Scopus subject areas

  • Materials Science(all)
  • Electrical and Electronic Engineering


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