maackia amurensis/neoplasms

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Expression of alpha 2,6-linked sialic acid residues in neoplastic but not in normal human colonic mucosa. A lectin-gold cytochemical study with Sambucus nigra and Maackia amurensis lectins.

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Increased sialylation of cell surface glycoconjugates has been demonstrated in malignant tumors and shown to be correlated with the invasive and metastatic growth of colon carcinoma cells. The authors have applied the Maackia amurensis lectin, which interacts with alpha 2,3-linked sialic acid, and

Sialylation and fucosylation of cancer-associated prostate specific antigen.

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OBJECTIVE To examine sialylation and fucosylation of prostate cancer-associated prostate-specific antigen (PCa PSA) from localized prostate cancer and from metastatic prostate cancer, as relevant indicators of tumour stage-dependent microheterogeneity of its oligosaccharide chain. METHODS Sera and

Potential importance of Maackia amurensis agglutinin in non-small cell lung cancer.

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Maackia amurensis agglutinin is a NeuNAcα (2-3) Galβ (1-4) GlcNAc/Glc-specific lectin, which was shown to have diagnostic potential in cancers of different origin. In a previous report, we demonstrated that GM3 specific IgG from bronchoalveolar lavage fluid (BALF) of non-small cell lung cancer

Maackia amurensis agglutinin enhances paclitaxel induced cytotoxicity in cultured non-small cell lung cancer cells.

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Maackia amurensis agglutinin (MAA) is gaining recognition as the potential diagnostic agent for cancer. Previous studies from our laboratory have demonstrated that this lectin could interact specifically with the cells and biopsy samples of non-small cell lung cancer (NSCLC) origin but not with

Heat shock protein 60 is a disease-associated sialoglycoprotein in human non-small cell lung cancer.

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The diagnostic and therapeutic potential of Maackia amurensis agglutinin (MAA) have been reported in various malignancies. Earlier, we have found that MAA specifically interacted with human non-small cell lung-cancer (NSCLC) cells and induced apoptosis in these cells. The present study was designed

Associated expression of α2,3sialylated type 2 chain structures with lymph node metastasis in distal colorectal cancer.

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OBJECTIVE One of the typical modifications on the surface of cancer cells is sialylation of terminal carbohydrates. The expression of several types of sialylation of glycoconjugates was investigated in colorectal cancer. METHODS The cancer tissue specimens obtained from 65 colorectal cancer patients

MUC1 and sialoglycan expression associated with cytotoxic T lymphocyte infiltration in eyelid malignant tumors.

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OBJECTIVE To elucidate the relation between infiltrating cytotoxic T lymphocytes and the expression of MUC1 and sialoglycans in malignant eyelid tumors. METHODS The distribution of MUC1, Maackia amurensis lectin-II (MAL-II)-recognized sialoglycan, and CD8-positive T lymphocytes was examined

Preferential lectin binding of cancer cells upon sialic acid treatment under nutrient deprivation.

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The terminal monosaccharide of glycoconjugates on a eukaryotic cell surface is typically a sialic acid (Neu5Ac). Increased sialylation usually indicates progression and poor prognosis of most carcinomas. Here, we utilize two human mammary epithelial cell lines, HB4A (breast normal cells) and T47D

Altered mRNA expressions of sialyltransferases in human gastric cancer tissues.

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Aberrant sialylation and altered sialyltransferase (ST) expressions are frequently found in many types of cancer. In this study, we examined the expressions of α 2,3-linked sialic acid residues and STs mRNA in human gastric cancer tissues. The relationship between the levels of α 2,3-linked sialic

High expression of alpha 2, 3-linked sialic acid residues is associated with the metastatic potential of human gastric cancer.

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BACKGROUND Sialic acid, as a terminal saccharide residue on cell surface glycoconjugates, plays an important role in a variety of biological processes. However, the precise nature of the molecules in gastric cancers has not been unveiled nor documented to be of clinical relevance. Herein, we

Determination of hyperglycosylated human chorionic gonadotropin produced by malignant gestational trophoblastic neoplasias and male germ cell tumors using a lectin-based immunoassay and surface plasmon resonance.

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The ability to reliably detect aberrant glycosylation of human chorionic gonadotropin (hCG) may have profound implications for the diagnosis and monitoring of malignant gestational trophoblastic neoplasia, germ cell tumors, other malignancies, and pregnancy complications. To become a clinically

Detection of disease specific sialoglycoconjugate specific antibodies in bronchoalveolar lavage fluid of non-small cell lung cancer patients.

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In this study, we report the presence of significantly higher level of GM3 specific IgG antibodies (IgG(TL)) in the bronchoalveolar lavage fluid obtained from tumor bearing lung of non-small cell lung cancer (NSCLC) patients as compared to other non-neoplastic controls. The antibodies were isolated

Assessment of tumor characteristics based on glycoform analysis of membrane-tethered MUC1.

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Clinical tissue specimens are useful for pathological diagnosis, which is, in some cases, supported by visualization of biomolecule localization. In general, diagnostic specificity in molecular pathology is increased by the acquisition of a probe to distinguish the modification of isomers. Although

Expression and function of beta 1 integrins on adherent and nonadherent Ehrlich ascites tumor cells.

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Differences in integrin-mediated cell-matrix adhesion between two types of Ehrlich ascites tumor (EAT) cells, adherent and nonadherent EAT cells, have been studied. The adherent EAT (a-EAT) cells adhere to and spread on laminin- or fibronectin-coated plates, whereas the nonadherent EAT (na-EAT)

Differences in cell surface carbohydrates, and in laminin and fibronectin synthesis, between adherent and non-adherent Ehrlich ascites tumor cells.

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Differences in cell surface carbohydrates and in laminin and fibronectin synthesis between 2 Ehrlich ascites tumor (EAT) cell lines, the adherent and non-adherent EAT cells, have been studied. The adherent EAT (a-EAT) cells grow in monolayer in vitro in the presence of fetal bovine serum. The

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