swainsonine/rakovina

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Glycoprotein modifications of sarcoma L-1 tumor cells by tunicamycin, swainsonine, bromoconduritol or 1-desoxynojirimycin treatment inhibits their metastatic lung colonization in Balb/c-mice.

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Přihlášení Registrace

Synthesis and expression of cell surface carbohydrates appear to be involved in recognition events associated with tumor invasion and metastasis. Thus, the potential of murine sarcoma L-1 cells to form experimental lung metastases after i.v. injection was assessed after inhibiting tumor cell protein

Swainsonine, an alpha-mannosidase inhibitor, may worsen cervical cancer progression through the increase in myeloid derived suppressor cells population.

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Cervical cancer, caused by high oncogenic risk Human Papillomavirus (HPV) infection, continues to be a public health problem, mainly in developing countries. Using peptide phage display as a tool to identify potential molecular targets in HPV associated tumors, we identified α-mannosidase, among

[Inhibition effect of Swainsonine on the growth and metastasis of gastric cancer in vivo].

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OBJECTIVE To study the immunomodulating effect of Swainsonine (SW), an inhibitor of alpha-mannosidase II, and the inhibiting effect on the growth and metastasis of gastric cancer. METHODS Nude mice with human gastric cancer xenograft orthotopically implanted into the gastric wall were fed with

Studies of an immunomodulator, swainsonine. II. Effect of swainsonine on mouse immunodeficient system and experimental murine tumor.

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We examined the effect of swainsonine on antibody response to sheep red blood cells (SRBC) in immunodeficient mice which were treated with immunosuppressive factor or antitumor drugs, or inoculated with sarcoma 180 ascites tumor. The administration of swainsonine restored the capacities of the

Carbonoyloxy analogs of the anti-metastatic drug swainsonine. Activation in tumor cells by esterases.

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Swainsonine (SW), a plant alkaloid and inhibitor of alpha-mannosidases, has been shown to inhibit N-linked oligosaccharide processing and to block tumor cell metastasis in mice. In this study, a series of SW analogs were chemically synthesized and compared for inhibition of complex-type N-linked

The potential importance of swainsonine in therapy for cancers and immunology.

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Swainsonine, an indolizidine alkaloid, was initially used in biomedical research as a tool to investigate the biosynthesis and function of asparagine-linked 'complex' type oligosaccharide moieties of glycoproteins. Recently, swainsonine has generated interest in its potential use as an anticancer

Swainsonine activates mitochondria-mediated apoptotic pathway in human lung cancer A549 cells and retards the growth of lung cancer xenografts.

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Swainsonine (1, 2, 8-trihyroxyindolizidine, SW), a natural alkaloid, has been reported to exhibit anti-cancer activity on several mouse models of human cancer and human cancers in vivo. However, the mechanisms of SW-mediated tumor regression are not clear. In this study, we investigated the effects

Evaluation of the effects of swainsonine, captopril, tangeretin and nobiletin on the biological behaviour of brain tumour cells in vitro.

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Although intrinsic tumours of the brain seldom metastasize to distant sites, their diffuse, infiltrative-invasive growth within the brain generally precludes successful surgical and adjuvant therapy. Hence, attention has now focused on novel therapeutic approaches to combat brain tumours that

Effects of swainsonine and polyinosinic:polycytidylic acid on murine tumor cell growth and metastasis.

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Increased sialylation and branching of asparagine-linked oligosaccharides have recently been associated with both neoplastic transformation and the metastatic phenotype. Swainsonine, an inhibitor of Golgi alpha-mannosidase II blocks the synthesis of sialylated tri- and tetraantennary

Swainsonine inhibition of spontaneous metastasis.

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We have previously shown that swainsonine, administered systemically to C57BL/6 mice, inhibited the pulmonary metastasis of iv injected B16-F10 melanoma cells by a mechanism involving interleukin-2 production and augmentation of natural killer cell activity. From this finding, which uses an

Phase IB clinical trial of the oligosaccharide processing inhibitor swainsonine in patients with advanced malignancies.

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The indolizidine alkaloid swainsonine, a potent inhibitor of Golgi alpha-mannosidase II, has been shown to reduce tumor cell metastasis, enhance cellular immune responses, and reduce solid tumor growth in mice. In our previous Phase I study, swainsonine administered by 5-day continuous infusion

An assessment of the effects of swainsonine on survival of mice injected with B16-F10 melanoma cells.

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Systemic administration of swainsonine, an indolizidine alkaloid, inhibits the experimental metastasis of B16-F10 murine melanoma cells. This activity can be attributed primarily to swainsonine-mediated enhancement of host natural killer cell activity. As one next step towards investigating the

Fyn arrests swainsonine-induced apoptosis in 293T cells via Akt and its phosphorylation.

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Swainsonine (SW), an extract from Astragalus membranaceus, represents a new class of compounds that inhibit growth and induce apoptosis in a cancer model. In this study, we demonstrated the effect of Fyn on SW-induced apoptosis in 293T cells. Western blotting was used to measure the expression of

Sesquiterpenoids and mycotoxin swainsonine from the locoweed endophytic fungus Alternaria oxytropis.

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Oxytropiols A-J, ten undescribed guaiane-type sesquiterpenoids, and the mycotoxin swainsonine (SW) were isolated from the locoweed endophytic fungus Alternaria oxytropis. The chemical structures of these sesquiterpenoids were elucidated on the basis of HR-ESI-MS and NMR data including ¹H,

Expression of L-PHA-binding proteins in breast cancer: reconstitution and molecular characterization of beta 1-6 branched oligosaccharides in three-dimensional cell culture.

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Expression of beta 1-6 branched oligosaccharides in human breast cancer cells was investigated in vivo and in vitro. Lectin histochemical and lectin blotting analyses of surgically resected specimens were performed using L-PHA (phaseolus vulgaris leukoagglutinin) lectin, which binds to beta 1-6

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