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Pàgina 1 des de 129 resultats
Betulin induces mitochondrial cytochrome c release associated apoptosis in human cancer cells.
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We examined whether betulin, a naturally abundant compound, has anticancer functions in human cancer cells. The results showed that betulin significantly inhibited cell viability in cervix carcinoma HeLa cells, hepatoma HepG2 cells, lung adenocarcinoma A549 cells, and breast cancer MCF-7 cells with
Anti-angiogenic and anti-cancer evaluation of betulin nanoemulsion in chicken chorioallantoic membrane and skin carcinoma in Balb/c mice.
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Betulin (Bet), the main component of birch tree bark, has been recently reported to exert anticancer activity in several cell lines; however the underlying mechanisms are only partially elucidated. The aims of the present work were to assess the in vivo effects of betulin administered as
New composites of betulin esters with arabinogalactan as highly potent anti-cancer agents.
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Betulin and its esters are the natural compounds with high in vitro cytotoxicity toward many cancer cells. However, the poor water solubility of these compounds has limited their applications. We prepared new composites of betulin esters using two methods, namely ball-milling of the mixtures of
Design, synthesis, and biological evaluation of ligustrazine - betulin amino-acid/dipeptide derivatives as anti-tumor agents.
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The ligustrazine - betulin derivative (TB), TB amino acids derivatives (TB-01 - TB-09) and TB dipeptide derivatives (TB-10 - TB-18) were designed and synthesized. And their in vitro cytotoxic activities were evaluated against four cancer cell lines (Hela, HepG2, BGC-823 and HT-29) and normal cells
Bioactivity evaluations of betulin identified from the bark of Betula platyphylla var. japonica for cancer therapy.
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Identification of bioactive natural products with anticancer activity as well as alleviating effects on chemotherapy-induced side effects has significant implications for cancer treatment. Betula platyphylla var. japonica, commonly known as Asian white birch, has been used in Chinese traditional
Anti-cancer effect of Betulin on a human lung cancer cell line: a pharmacoproteomic approach using 2 D SDS PAGE coupled with nano-HPLC tandem Mass Spectrometry.
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Betulin is a representative compound of Betula platyphylla, a tree species belonging to the Betulaceae family. In this investigation, we revealed that betulin showed anticancer activity on human lung cancer A549 cells by inducing apoptosis and changes in protein expression profiles were observed.
Bidesmosidic betulin saponin bearing L-rhamnopyranoside moieties induces apoptosis and inhibition of lung cancer cells growth in vitro and in vivo.
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Betulin has a wide range of biological and pharmacological properties with its anticancer activity attracting most of the attention as it offers a possible alternative treatment to chemotherapy. However, betulin's in vivo biological effectiveness is limited by its poor solubility. As such, we
Betulin is a potent anti-tumor agent that is enhanced by cholesterol.
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Betulinic Acid (BetA) and its derivatives have been extensively studied in the past for their anti-tumor effects, but relatively little is known about its precursor Betulin (BE). We found that BE induces apoptosis utilizing a similar mechanism as BetA and is prevented by cyclosporin A (CsA). BE
Apoptotic and antimetastatic activities of betulin isolated from Quercus incana against non-small cell lung cancer cells.
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Antitumor Activity of Betulinic Acid and Betulin in Canine Cancer Cell Lines.
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OBJECTIVE
Betulinic acid (BA) and betulin (BT) exhibit a variety of pharmacological properties including anti-cancer, anti-inflammatory and anti-oxidant ones. Canine lymphoma and osteosarcoma have a high mortality rate and need more effective therapeutic approaches. In this study, the
Esters of betulin and betulinic acid with amino acids have improved water solubility and are selectively cytotoxic toward cancer cells.
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Betulin and betulinic acid are naturally occurring pentacyclic triterpenes showing cytotoxicity towards a number of cancer cell lines. Unfortunately they are practically insoluble in aqueous media and therefore their overall absorption index is not satisfactory. We have modified structures of both
Betulin complex in γ-cyclodextrin derivatives: properties and antineoplasic activities in in vitro and in vivo tumor models.
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Given the present high incidence of melanoma and skin cancer, interest in potential drugs of plant origin has increased significantly. Pentacyclic lupane-type triterpenes are widely distributed in plants, offering numerous pharmacological benefits. Betulin is an important compound in the bark of
Betulin elicits anti-cancer effects in tumour primary cultures and cell lines in vitro.
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Betulin is a pentacyclic triterpene found in many plant species, among others, in white birch bark. The aim of the study was in vitro characterization of the anticancer activity of betulin in a range of human tumour cell lines (neuroblastoma, rhabdomyosarcoma-medulloblastoma, glioma, thyroid,
Betulin-betulinic acid natural product based analogs as anti-cancer agents.
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Herein we describe a brief account of betulin and betulinic acid: two natural products isolated from birch bark, their chemical modifications and further biological/medicinal applications.
Synergistic activity of sorafenib and betulinic acid against clonogenic activity of non-small cell lung cancer cells.
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The highly selective multi-targeted agent sorafenib is an inhibitor of a number of intracellular signaling kinases with anti-proliferative, anti-angiogenic and pro-apoptotic effects in various types of tumors, including human non-small cell lung cancer (NSCLC). Betulin displays a broad spectrum of
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