The first dual activatable hypochlorite ((-)OCl)-sensing probe was developed, based on a new proof-of-concept design involving signal-activatable (1)H chemical probes using the triple-resonance NMR technique. The probe enabled fluorescence-(1)H MR dual turn-on detection of (-)OCl in solution and in crude tissue extracts.
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http://dx.doi.org/10.1039/c1cc12044a | DOI Listing |
Talanta
December 2024
School of Water Conservancy and Environment, University of Jinan, Jinan, 250022, China. Electronic address:
Drug-induced liver injury (DILI) is a crucial factor that poses a significant threat to human health. DILI process leads to the changes of reactive oxygen species and reactive nitrogen species content in cells, which leads to oxidative and nitrosative stress in cells. However, the high reactivity of hypochlorous acid (HOCl) and peroxynitrite (ONOO⁻), combined with a lack of in situ imaging techniques, has hindered a detailed understanding of their roles in DILI.
View Article and Find Full Text PDFNano Lett
December 2024
School of Pharmacy, Minhang Hospital, Key Laboratory of Smart Drug Delivery Ministry of Education, State Key Laboratory of Molecular Engineering of Polymers, Fudan University, Shanghai 201203, P.R. China.
Chemodynamic therapy (CDT) utilizing Fenton or Fenton-like reactions to generate cytotoxic hydroxyl radicals by metal ions has become a compelling strategy for cancer treatment. Visualizing intratumoral Fenton or Fenton-like reactions especially at a cellular level in real-time can directly monitor the process of CDT, which is not yet feasible. Here, we present a molecule BADA chelating Cu to form Cu-BADA nanoparticles, exhibiting fluorescence quenching properties through intermolecular electron transfer.
View Article and Find Full Text PDFAdv Sci (Weinh)
December 2024
Institute of Immunology, Zhejiang University School of Medicine, Hangzhou, 310009, China.
Various second messengers exert some vital actions in biological systems, including cancer therapy, but the therapeutic efficacy is often need to be improved. A semiconducting polymer nanomessenger (TCa/SPN/a) consisting of two second messengers, calcium ion (Ca) and cyclic guanosine monophosphate-adenosine monophosphate (cGAMP) for metastatic breast cancer therapy, is reported here. Such a TCa/SPN/a is constructed to exhibit X-ray response for the activatable delivery of mitochondria-targeting Ca compound and cGAMP as stimulator of interferon genes (STING) agonist.
View Article and Find Full Text PDFFront Cell Neurosci
November 2024
Department of Physiology, University of Kentucky, Lexington, KY, United States.
Introduction: Mammalian hearing depends on the dual mechanosensory and motor functions of cochlear hair cells. Both these functions may be regulated by Ca release from intracellular stores. However, it is still unclear how exactly intracellular Ca release may affect either hair cell mechano-electrical transduction (MET) or prestin-dependent electromotility in outer hair cells (OHCs).
View Article and Find Full Text PDFAnal Chim Acta
January 2025
School of Pharmacy and Food Engineering, Wuyi University, 529020, Jiangmen, PR China. Electronic address:
Background: Drug-induced liver injury (DILI) is one of the most common liver diseases. The crucial role of lipid droplets (LDs) and hydrogen peroxide (HO), two important biomarkers in the pathophysiology of DILI, has spurred considerable efforts to accurately visualize HO and LDs for elucidating their functions in the progression of DILI. However, construction of a single fluorescent probe that is able to simultaneously image HO and LDs dynamics remains to be a challenging task.
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