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beta galactosidase/cáncer
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The first generation of β-galactosidase-responsive prodrugs designed for the selective treatment of solid tumors in prodrug monotherapy.
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Massive attack: Galactoside prodrugs have been designed that can be selectively activated by lysosomal β-galactosidase located inside cancer cells expressing a specific tumor-associated receptor. This efficient enzymatic process triggers a potent cytotoxic effect, releasing the potent antimitotic
The activity of serum beta-galactosidase in colon cancer patients with a history of alcohol and nicotine dependence: preliminary data.
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BACKGROUND
Beta-galactosidase (GAL) is a lysosomal exoglycosidase involved in the catabolism of glycoconjugates through the sequential release of beta-linked terminal galactosyl residues. The stimulation of activity of exoglycosidases and other degradative enzymes has been noted in cancers as well
Histochemical demonstration of different types of poly-N-acetyllactosamine structures in human thyroid neoplasms using lectins and endo-beta-galactosidase digestion.
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Blood-group-related antigens expressed in papillary carcinomas and other types of neoplasm of the human thyroid glands have been shown to be carried by poly-N-acetyllactosamines containing a linear domain susceptible to endo-beta-galactosidase digestion. To make clear more precisely the backbone
Evaluation of a nude mouse tumor model using beta-galactosidase-expressing melanoma cells.
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We developed and evaluated an in vivo athymic nude mouse model for tumor growth, angiogenesis, metastasis, and antineoplastic drug development. Melanoma cell lines expressing beta-galactosidase encoded by the Escherichia coli lac Z gene have been created by infecting an immortal murine melanocyte
Plasma Escherichia coli beta-galactosidase as a marker of tumor burden and response to experimental anti-neoplastic therapy in nude mice xenografted with lacZ transduced human tumor cells.
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Genetic labeling of tumor cells with the Escherichia coli lacZ reporter gene, encoding the enzyme beta-galactosidase, is widely used for histochemical detection of micrometastases in mice. Recently, we have developed a novel, highly sensitive and specific immunocapture chemiluminescence assay for
Beta galactosidase mediated bio-enzymatically synthesized nano-gold with aggrandized cytotoxic potential against pathogenic bacteria and cancer cells
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The current investigation reports bactericidal and cytotoxicity evaluation of bio-enzymatically formulated nano‑gold (AuNPs) using physiologically significant enzyme β galactosidase. The AuNPs were characterized using spectroscopic and microscopic techniques. The anti-pathogenic efficacy of AuNPs as
Anti-tumor immunity against CT26 colon tumor in mice immunized with plasmid DNA encoding beta-galactosidase fused to an envelope protein of endogenous retrovirus.
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Endogenous retroviral gene products have been recognized as being expressed in human cancerous tissues. However, these products have not been shown to be antigenic targets for T-cells, possibly due to immune tolerance. Since carcinogen-induced colon tumor CT26 expresses an envelope protein, gp70, of
Co-delivery of T helper 1-biasing cytokine genes enhances the efficacy of gene gun immunization of mice: studies with the model tumor antigen beta-galactosidase and the BALB/c Meth A p53 tumor-specific antigen.
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DNA-based immunization is currently being investigated as a new method for the induction of cellular and humoral immunity directed against viral disease and cancer. In the present study we characterized and compared the immune responses induced in mice following particle-bombardment of the skin
Cell cycle analysis of foreign gene (beta-galactosidase) expression in recombinant mouse cells under control of mouse mammary tumor virus promoter.
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The cell cycle dependency of foreign gene expression in recombinant mouse L cells was investigated. Two different recombinant mouse L cell lines having the glucocorticoid receptor-encoding gene and the lacZ reporter gene were used in this study. The lacZ gene expression was controlled by the
An in vitro immuno-enzymatic assay of tumor antigens in the mouse with beta-galactosidase.
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A method for detection of the primary binding of soluble tumor-associated antigens by antibodies has been developed by using an enzyme immunoassay (EIA). A heteroantiserum was produced by injecting tumor cells from a chemically induced murine sarcoma into rabbits, and antibodies reacting with most
Overexpression of the novel senescence marker β-galactosidase (GLB1) in prostate cancer predicts reduced PSA recurrence.
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OBJECTIVE
Senescence is a terminal growth arrest that functions as a tumor suppressor in aging and precancerous cells and is a response to selected anticancer compounds. Lysosomal-β-galactosidase (GLB1) hydrolyzes β-galactose from glycoconjugates and is the origin of senescence-associated β-gal
Purification and characterization of β-galactosidase from newly isolated Aspergillus terreus (KUBCF1306) and evaluating its efficacy on breast cancer cell line (MCF-7).
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β-galactosidases (EC 3.2.1.23) are able to catalyze two different types of reactions, namely hydrolysis and transgalactosylation. It is a lysosomal exoglycosidase involved in the catabolism of glycoconjugates by sequential release of β-linked terminal galactosyl residues. It has profound
Beta-galactosidase and alpha-mannosidase inhibit formation of multicellular nodules in breast cancer cell cultures.
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In response to an estrogen, confluent monolayers of MCF-7 cell cultures develop multi-cellular nodules, termed foci. Post-confluent development of foci occurs with physiologic levels of 17beta-estradiol and are inhibited by various anti-estrogens acting through either the estrogen or aryl
Characterization of the antigen (CAK1) recognized by monoclonal antibody K1 present on ovarian cancers and normal mesothelium.
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K1 is a monoclonal antibody that reacts with a cell surface antigen (CAK1) found in human mesothelia and nonmucinous ovarian tumors. In this article, the characteristics of the CAK1 antigen have been examined in detail. Using immunofluorescence microscopy, we have found that the CAK1 signal is
Quantitative digital in situ senescence-associated β-galactosidase assay.
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BACKGROUND
Cellular senescence plays important roles in the aging process of complex organisms, in tumor suppression and in response to stress. Several markers can be used to identify senescent cells, of which the most widely used is the senescence-associated β-galactosidase (SABG) activity. The
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