A purposefully-designed anthraquinone-Pholiota squarrosa lectin (PhoSL) hybrid effectively degraded α-fetoprotein-L3 (AFP-L3) associated with liver cancer. Degradation was achieved under light irradiation in the absence of any additives and under neutral pH conditions. Moreover, the hybrid effectively exhibited selective photo-cytotoxicity against HuH-7 hepatocarcinoma cells upon photo-irradiation.
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http://dx.doi.org/10.1039/c5cc09542e | DOI Listing |
J Am Chem Soc
September 2024
Department of Chemistry, City University of Hong Kong, Tat Chee Avenue, Kowloon, Hong Kong, P. R. China.
Cross-linking strategies have found wide applications in chemical biology, enabling the labeling of biomolecules and monitoring of protein-protein interactions. Nitrone exhibits remarkable versatility and applicability in bioorthogonal labeling due to its high reactivity with strained alkynes via the strain-promoted alkyne-nitrone cycloaddition (SPANC) reaction. In this work, four cyclometalated iridium(III) polypyridine complexes functionalized with two nitrone units were designed as novel phosphorogenic bioorthogonal reagents for bioimaging and phototherapeutics.
View Article and Find Full Text PDFOrg Biomol Chem
September 2024
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
L-Cysteine (Cys)-activatable photosensitizer 3 was designed and synthesized based on hypocrellin B (1). Cys is a novel tumor-associated biomarker. 3 exhibited negligible photosensitizing ability without Cys.
View Article and Find Full Text PDFInt Immunopharmacol
February 2023
Department of Respiratory, Taihe Hospital of Shiyan, Hubei University of Medicine, Renmin Road, No. 30, Shiyan, Hubei 442000, China; Hubei Key Laboratory of Embryonic Stem Cell Research, School of Basic Medical Sciences, Hubei University of Medicine, Renmin Road No. 30, Shiyan, Hubei 442000, China; Department of Pathology, Sinopharm DongFeng General Hospital, Hubei University of Medicine, Renmin Road No. 30, Shiyan, Hubei 442000, China. Electronic address:
Suppression of the immune microenvironment is an important endogenous contributor to treatment failure in lung cancer. Photodynamic therapy (PDT) is widely used in the treatment of malignant tumors owing to its photo-selectivity and minimal side effects. Some studies have shown the ability of photodynamic action not only to cause photo-cytotoxicity to tumor cells but also to induce immunogenic cell death (ICD).
View Article and Find Full Text PDFSpectrochim Acta A Mol Biomol Spectrosc
February 2023
School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, PR China. Electronic address:
Lysosome, an organelle which contains a number of hydrolases and hydrogen ions, plays a crucial role in cellular survival and apoptosis. If selectively destroy lysosomes membrane, inner hydrolases and hydrogen ions will leak and induce cell death. In this work, three lysosome-targeting fluorescent probes (HCL 1-3, heptamethine cyanine lysosomal-targeting probe) were designed, synthesized and developed for photodynamic therapy.
View Article and Find Full Text PDFChem Commun (Camb)
December 2021
Department of Applied Chemistry, Faculty of Science and Technology, Keio University, 3-14-1 Hiyoshi, Kohoku-ku, Yokohama 223-8522, Japan.
A novel tumor-related biomarker, a HO-activatable photosensitizer 4 based on the 1,3-dicarbonyl enol moieties of hypocrellin B (3), was designed and synthesized. The photosensitizer 4 showed a blue-shifted absorption band compared with 3, and showed negligible photosensitizing ability without HO. However, the release of 3 from 4 by the reaction with HO regenerated the photosensitizing ability.
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