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Página 1 a partir de 252 resultados
Shikonins, phytocompounds from Lithospermum erythrorhizon, inhibit the transcriptional activation of human tumor necrosis factor alpha promoter in vivo.
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Tumor necrosis factor alpha (TNF-alpha) contributes to the pathogenesis of both acute and chronic inflammatory diseases and has been a target for the development of new anti-inflammatory drugs. Shikonins, the naphthoquinone pigments present in the root tissues of Lithospermum erythrorhizon Sieb. et
Shikonin inhibits prostate cancer cells metastasis by reducing matrix metalloproteinase-2/-9 expression via AKT/mTOR and ROS/ERK1/2 pathways.
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Metastasis is one of the most important factors related to prostate cancer therapeutic efficacy. In previous studies, shikonin, an active naphthoquinone isolated from the Chinese medicine Zi Cao, has various anticancer activities both in vivo and in vitro. However, the mechanisms underlying
Shikonin-induced apoptosis involves caspase-3 activity in a human bladder cancer cell line (T24).
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Apoptosis is a process that leads to programmed cell death and also a therapeutic target of cancer. In this study, potential apoptotic effects of shikonin on human bladder cancer cells (T24) in vitro were evaluated. Apoptosis induction, cell viability and morphological changes were investigated and
Shikonin induces apoptosis in the human gastric cancer cells HGC-27 through mitochondria-mediated pathway.
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BACKGROUND
Gastric cancer (GC) is one of the most frequently occurring digestive tract cancers and fewer chemotherapeutic drugs for GC have shown promising results. In this study, we investigated the anti-tumor activity of shikonin, a natural compound isolated from the Chinese plant Lithospermum
Targeting cell necroptosis and apoptosis induced by Shikonin via receptor interacting protein kinases in estrogen receptor positive breast cancer cell line, MCF-7.
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BACKGROUND
Recognition of a new therapeutic agent may activate an alternative programmed cell death for the treatment of breast cancer.
OBJECTIVE
Here, it has been tried to evaluate the effects of Shikonin, a naphthoquinone derivative of Lithospermum erythrorhizon, on the induction of necroptosis
The inhibition of N-acetyltransferase activity and gene expression in human bladder cancer cells (T24) by shikonin.
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Shikonin has the potential to prevent, or be used in the treatment of, bladder transitional cell carcinoma induced by arylamines. We evaluated its effectiveness by measuring the amount of acetylated 2-aminofluorene (AF), AF-DNA adducts, changes of NAT mRNA and the amount of NAT enzyme. T24 human
Shikonin-loaded antibody-armed nanoparticles for targeted therapy of ovarian cancer.
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Conventional chemotherapy of ovarian cancer often fails because of initiation of drug resistance and/or side effects and trace of untouched remaining cancerous cells. This highlights an urgent need for advanced targeted therapies for effective remediation of the disease using a cytotoxic agent with
Shikonin induces apoptosis and necroptosis in pancreatic cancer via regulating the expression of RIP1/RIP3 and synergizes the activity of gemcitabine.
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Pancreatic cancer is a lethal solid malignancy with poor prognosis. The optimal therapy for patients with advanced pancreatic cancer remains challenged. Thus, development of novel chemotherapy regimens is extremely urgent. Shikonin (SK) is a naphthoquinone derived from the roots of the Chinese
Shikonin, acetylshikonin, and isobutyroylshikonin inhibit VEGF-induced angiogenesis and suppress tumor growth in lewis lung carcinoma-bearing mice.
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Lithospermum erythrorhizon has been used for treatment of inflammatory diseases and cancer as a folk remedy. Based on the evidences that anti-inflammatory agents frequently exert antiangiogenic activity, thus we examined comparatively the antiangiogenic activities of three naphthoquinone derivatives
Spectrum-effect relationship for anti-tumor activity of shikonins and shikonofurans in medicinal Zicao by UHPLC-MS/MS and chemometric approaches.
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Shikonin, shikonofuran and their derivatives are the main bioactive components of Zicao, a traditional Chinese medicine prepared with the dried roots of Lithospermum erythrorhizon, Arnebia euchroma or Arnebia guttata. To establish an efficient and sensitive method for studying material basis of
Synthesis, biological function and evaluation of Shikonin in cancer therapy.
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Shikonin is a natural compound isolated from herbs and traditional medicines that have been used in a number of countries to treat various illnesses including inflammation, virus infection and cancer for centuries. Recent studies have shed light on the molecular mechanisms underlying these
Shikonin and its analogs inhibit cancer cell glycolysis by targeting tumor pyruvate kinase-M2.
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We recently reported that shikonin and its analogs were a class of necroptotic inducers that could bypass cancer drug resistance. However, the molecular targets of shikonin are not known. Here, we showed that shikonin and its analogs are inhibitors of tumor-specific pyruvate kinase-M2 (PKM2), among
Shikonin Inhibits Cancer Through P21 Upregulation and Apoptosis Induction
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Shikonin is a natural naphthoquinone compound and has demonstrated potent anti-cancer activities; however, the underlying molecular mechanisms remained elusive. Here we report that Shikonin inhibited the growth of a wide range of human cancer cell lines, illustrating a broad anticancer effect.
Shikonin derivatives for cancer prevention and therapy.
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Phytochemicals gained considerable interest during the past years as source to develop new treatment options for chemoprevention and cancer therapy. Motivated by the fact that a majority of established anticancer drugs are derived in one way or another from natural resources, we focused on shikonin,
Shikonin and 4-hydroxytamoxifen synergistically inhibit the proliferation of breast cancer cells through activating apoptosis signaling pathway in vitro and in vivo.
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