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Pagina 1 a partire dal 208 risultati
Psoralen reverses the P-glycoprotein-mediated multidrug resistance in human breast cancer MCF-7/ADR cells.
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The resistance of cancer to chemotherapeutic agents is a major obstacle during chemotherapy. Clinical multidrug resistance (MDR) is commonly mediated by membrane drug efflux pumps, including ATP‑binding cassette subfamily B member 1, also termed P-glycoprotein (P-gp). P-gp is a membrane transporter
X-Ray Psoralen Activated Cancer Therapy (X-PACT).
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This work investigates X-PACT (X-ray Psoralen Activated Cancer Therapy): a new approach for the treatment of solid cancer. X-PACT utilizes psoralen, a potent anti-cancer therapeutic with current application to proliferative disease and extracorporeal photopheresis (ECP) of cutaneous T Cell Lymphoma.
Psoralen reverses docetaxel-induced multidrug resistance in A549/D16 human lung cancer cells lines.
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Chemotherapy is the recommended treatment for advanced-stage cancers. However, the emergence of multidrug resistance (MDR), the ability of cancer cells to become simultaneously resistant to different drugs, limits the efficacy of chemotherapy. Previous studies have shown that herbal medicine or
Psoralen analogues: synthesis, inhibitory activity of growth of human tumor cell lines and computational studies.
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Eight psoralens have been evaluated for their ability to inhibit the in vitro growth of three human tumor cell lines representing different tumor types, MCF-7 (breast cancer), NCI-H460 (non-small cell lung cancer) and SF-268 (CNS cancer). The synthesis of four new psoralens (benzofurocoumarins) is
[An experimental study on antitumor activity of psoralen on mammary cancer cell line EMT6 in vitro and in vivo].
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To investigate the antitumor activity of psoralen on mammary cancer cells of EMT6 line, the cytotoxity of the drug against EMT6 cells was tested by MTT assay; an experimental therapy was carried out in 15 nude mice that were subcutaneously injected with EMT6 cells; the morphological changes of tumor
Psoralen inhibits bone metastasis of breast cancer in mice.
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Breast cancer is the most common female malignancy and it frequently metastasizes to bone. Metastatic breast cancer continues to be the primary cause of death for women in East and Southeast Asia. Psoralen is a furocoumarin that can be isolated from the seeds of Psoralea corylifolia L. Psoralen
Effects of Psoralen as an Anti-tumor Agent in Human Breast Cancer MCF-7/ADR Cells.
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Psoralen is a major active component of Psoralea corylifolia. In the present study, we analyzed psoralen-induced changes in human breast cancer MCF-7/ADR cells and investigated the underlying mechanisms of the anticancer effect on MCF-7/ADR cells. We measured cell viability by
Photo-activated psoralen binds the ErbB2 catalytic kinase domain, blocking ErbB2 signaling and triggering tumor cell apoptosis.
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Photo-activation of psoralen with UVA irradiation, referred to as PUVA, is used in the treatment of proliferative skin disorders. The anti-proliferative effects of PUVA have been largely attributed to psoralen intercalation of DNA, which upon UV treatment, triggers the formation of interstrand DNA
Polymer-lipid hybrid nanoparticles: A novel drug delivery system for enhancing the activity of Psoralen against breast cancer.
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A polymer-lipid hybrid nanocarrier was developed to encapsulate psoralen (PSO) to improve its water solubility and bioavailability. The effects of PSO-loaded polymer-lipid hybrid nanoparticles (PSO-PLNs) on breast cancer MCF-7 cells were investigated. PSO-PLNs were prepared through a
Effects of psoralens as anti-tumoral agents in breast cancer cells.
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This review examines the biological properties of coumarins, widely distributed at the highest levels in the fruit, followed by the roots, stems and leaves, by considering their beneficial effects in the prevention of some diseases and as anti-cancer agents. These compounds are well known
Activity of psoralen-functionalized nanoscintillators against cancer cells upon X-ray excitation.
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We report development of a nanoparticle-based, X-ray-activated anticancer "nanodrug" composed of yttrium oxide (Y(2)O(3)) nanoscintillators, a fragment of the HIV-1 TAT peptide, and psoralen. In this formulation, X-ray radiation is absorbed by the Y(2)O(3) nanoscintillators, which then emit UVA
Fabrication of psoralen-loaded lipid-polymer hybrid nanoparticles and their reversal effect on drug resistance of cancer cells.
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In the present study, a lipid-polymer hybrid drug carrier system was developed to encapsulate psoralen (PSO), a multidrug resistance reversal agent and traditional Chinese medicine. Emphasis was focused the parameters that influence physicochemical characteristics, and then the drug release profile,
[Inhibitory acting mechanism of psoralen-osthole on bone metastasis of breast cancer--an expatiation viewing from OPG/RANKL/RANK system].
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OBJECTIVE
To find the optimal proportion of Composite Fructus Psoralea and Fructus Cnidii (CFPC) for inhibiting the bone metastasis of breast cancer by way of exploring its acting mechanism viewing from OPG/RANKL/RANK system.
METHODS
The human bone metastasis of breast cancer model was established
Effect of irradiation at 365 nm in the presence of psoralen on the oxygen consumption in rat liver mitochondria and in Ehrlich ascites tumor cells.
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Topical or oral administration with an extract of Polypodium leucotomos prevents acute sunburn and psoralen-induced phototoxic reactions as well as depletion of Langerhans cells in human skin.
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Sunburn, immune suppression, photoaging, and skin cancers result from uncontrolled overexposure of human skin to solar ultraviolet radiation (UVR). Preventive measures, including photoprotection, are helpful and can be achieved by topical sunscreening agents. Polypodium leucotomos (PL) has been used
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