Hypericin-photodynamic therapy leads to interleukin-6 secretion by HepG2 cells and their apoptosis via recruitment of BH3 interacting-domain death agonist and caspases
نویسندگان
چکیده
منابع مشابه
Hypericin-photodynamic therapy induces human umbilical vein endothelial cell apoptosis.
The conventional photosensitizers used in photodynamic therapy (PDT), such as haematoporphyrin (HP), have not yet reached satisfactory therapeutic effects on port-wine stains (PWSs), due largely to the long-term dark toxicity. Previously we have showed that hypericin exhibited potent photocytotoxic effects on Roman chicken cockscomb model of PWSs. However, the molecular mechanism of hypericin-m...
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Dendritic cells (DC) pulsed with tumor-derived peptides, proteins, genes, or lysates have been studied as therapeutic cancer vaccines. However, the overall therapeutic efficacy of this approach has been limited, indicating a need to either enhance its potency or combine it with other treatment modalities. Photodynamic therapy (PDT) process consists of injecting a photosensitizer, which selectiv...
متن کاملTo trigger apoptosis, Bak exposes its BH3 domain and homodimerizes via BH3:groove interactions.
The Bcl-2 relative Bak is thought to drive apoptosis by forming homo-oligomers that permeabilize mitochondria, but how it is activated and oligomerizes is unclear. To clarify these pivotal steps toward apoptosis, we have characterized multiple random loss-of-function Bak mutants and explored the mechanism of Bak conformation change during apoptosis. Single missense mutations located to the alph...
متن کاملHypericin-mediated photodynamic therapy induces apoptosis in K562 human leukemia cells through JNK pathway modulation
Hypericin (Hyp) is traditionally used as an antidepressant and antiviral agent. It selectively accumulates in spheroids and is also used as a photosensitizer in the photodynamic therapy of cancer. The present study aimed to investigate the cytotoxic effect of Hyp‑mediated photodynamic therapy (Hyp‑PDT) on cell growth and apoptosis of K562 leukemia cells, and to examine the underlying mechanisms...
متن کاملHypericin-photodynamic therapy inhibits proliferation and induces apoptosis in human rheumatoid arthritis fibroblast-like synoviocytes cell line MH7A
Objective(s): To elucidate the effects and potential mechanisms of hypericin-photodynamic therapy (HYP-PDT) for treating the human rheumatoid arthritis (RA) fibroblast-like synoviocyte (FLS) MH7A cell-line. Materials and Methods: MH7A cells were subjected to HYP-PDT intervention and apoptosis was evaluated via MTT, nuclear staining, and flowcytometry analyses. Intracellular reactive oxygen spec...
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ژورنال
عنوان ژورنال: Cell Death & Disease
سال: 2013
ISSN: 2041-4889
DOI: 10.1038/cddis.2013.219