Fe in biosynthesis, translocation, and signal transduction of NO: Toward bioinorganic engineering of dinitrosyl iron complexes into NO-delivery scaffolds for tissue engineering

Hui Yi Hsiao, Chieh Wei Chung, Joshua H. Santos, Oliver B. Villaflores, Tsai Te Lu*

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

60 Scopus citations

Abstract

Iron, the most abundant transition metal ion in humans, participates in the biosynthesis, translocation, signal transduction, and transformation of nitric oxide through its encapsulation in the form of heme, [Fe-S], and [Fe(NO)2] cofactors within a variety of enzymes and proteins. After the review on nitric oxide synthase (NOS) and soluble guanylate cyclase (sGC) for the biosynthesis and detection of NO, in this report, we discuss the natural utilization of the [Fe(NO)2] motif for translocation of endogenous NO and the translational development of synthetic dinitrosyl iron complexes (DNICs) for biomedical applications. A mechanistic study of NO-release and NO-transfer reactivity of structure-characterized DNICs promoted the discovery of cell-penetrating and in vivo NO-delivery reactivity for treatment of cancer and wound healing in diabetes. Beyond activation of sGC and vasodilation, phase I/II clinical trials of glutathione-bound DNICs (Oxacom®) against hypertension encourage bioinorganic engineering of DNICs into scaffolds for tissue regeneration and repair relying on anti-bacterial, anti-inflammation, cytoprotective, and proliferative effects of NO.

Original languageEnglish
Pages (from-to)9431-9453
Number of pages23
JournalDalton Transactions
Volume48
Issue number26
DOIs
StatePublished - 2019
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2019 The Royal Society of Chemistry.

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