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neoplasm metastasis/sambucus
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Lectin from Sambucus sieboldiana abrogates the anoikis resistance of colon cancer cells conferred by N-acetylglucosaminyltransferase V during hematogenous metastasis.
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Anoikis is a form of anchorage-dependent apoptosis, and cancer cells adopt anokis-resistance molecular machinery to conduct metastasis. Here, we report that N-acetylglucosaminyltransferase V gene expression confers anoikis resistance during cancer progression. Overexpression of
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
Cell surface sialoprotein alterations in metastatic murine colon cancer cell lines selected in an animal model for colon cancer metastasis.
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Alterations in cell surface proteins and glycoproteins may play a key role in determining the metastatic behavior of tumor cells. The cell surface proteins of a series of related murine colon cancer cells selected in an animal model for colon cancer metastasis (R. S. Bresalier et al., Cancer Res.,
Up-regulation of galectin-3 and Sambucus nigra agglutinin binding site is associated with invasion, metastasis and poor-progression of the gallbladder adenocarcinoma.
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OBJECTIVE
To study the expression of galectin-3 (gal-3) and Sambucus nigra agglutinin (SNA) binding site and to detect their clinicopathological significances in the benign and malignant lesions of gallbladder.
METHODS
We used immunohistochemistry to detect gal-3 expression and ABC
[Expression of galectin 3 and Sambucus nigra agglutinin and their clinicopathological significance in benign and malignant lesions of stomach].
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OBJECTIVE
To study the expressive levels of galectin-3(gal-3) and Sambucus nigra agglutinin(SNA) and their clinicopathological significance in the benign and malignant lesions of stomach.
METHODS
EnVision immunohistochemistry for assaying gal-3 expressive level and ABC cytochemistry for determining
Carbohydrate moieties of N-cadherin from human melanoma cell lines.
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Expression of N-cadherin an adhesion molecule of the cadherin family, in tumor cells is associated with their increased invasive potential. Many studies suggested the role of N-linked oligosaccharides as important factors that contribute to metastasis by influencing tumor cell invasion and adhesion.
Sialoglycoconjugate expression in primary colorectal cancer and metastatic lymph node tissues.
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OBJECTIVE
Aberrant cell surface glycosylation, and especially excessive sialylation, is thought to have great importance in tumor malignancy. To investigate the clinicopathological significance of sialylation in colorectal cancer, we performed histochemical analyses using sialic acid-binding
The expression of Gal beta 1,4GlcNAc alpha 2,6 sialyltransferase and alpha 2,6-linked sialoglycoconjugates in human brain tumors.
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CMP-NeuAc: Gal beta 1,4GlcNAc alpha 2,6 sialyltransferase (alpha 2,6-ST) [EC 2.4.99.1] is developmentally regulated, shows a high degree of tissue specificity, and appears to play a role in oncogenic transformation and metastasis. In the present study, we have performed the first detailed analysis
Lectin inhibits antigen-antibody reaction in a glycoform-specific manner: Application for detecting α2,6sialylated-carcinoembryonic antigen.
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Carcinoembryonic antigen (CEA) is a glycoprotein marker, which is widely used for diagnosing various cancers, especially colon adenocarcinoma. In addition, CEA mediates homotypic adhesion of colon adenocarcinoma cells, which appears to favor hematogenous metastasis. CEA carries α2,6sialyl residues
The expression of CMP-NeuAc: Gal beta 1,4GlcNAc alpha 2,6 sialyltransferase [EC 2.4.99.1] and glycoproteins bearing alpha 2,6-linked sialic acids in human brain tumours.
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The expression of CMP-NeuAc: Gal beta 1,4GlcNAc alpha 2,6 sialyltransferase (alpha 2,6-ST) [EC 2.4.99.1] and glycoproteins bearing alpha 2,6-linked sialic acids were examined in primary human brain tumours and cell lines. 79% (19/24) of the meningiomas expressed alpha 2,6-ST mRNA, 42% (10/24) of
Contribution of sialic acids to integrin α5β1 functioning in melanoma cells.
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Salivary glyco-sialylation changes monitors oral carcinogenesis.
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Alterations in cell membrane glycosylation play important role in oral carcinogenesis. The present study evaluated salivary sialylation changes i.e. total sialic acid (TSA), sialidase activity, linkage specific (α2-3 and α2-6) sialoproteins and sialyl transferase (ST) activity in controls, patients
Characterization and distribution of sialic acids in human testicular seminoma.
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Aberrant content of sialic acids (Sias) has been observed in various human cancer types in different organs. Sias have been implicated in cancerous transformation, invasiveness and metastasis, and in the escaping of cancer cells from immune surveillance. Indeed, Sias are commonly regarded as
Sialic acid differential expression in non-melanoma skin cancer biopsies.
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Altered sialylation has been observed during oncogenic transformation and has been implicated in tumor progression and metastases. This pattern may aid the biological behavior of many tumors. Skin cancer is the most common cancer worldwide and their diagnosis becomes difficult, in some cases, due to
Quantitative lectin-histochemical and immunohistochemical studies on the occurrence of alpha(2,3)- and alpha(2,6)-linked sialic acid residues in colorectal carcinomas. Relation to clinicopathologic features.
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BACKGROUND
Enhanced sialylation has been considered important for the metastatic growth of colorectal carcinomas. Using sequence- and sialic acid-specific lectins and a monoclonal antibody, the tumor-associated expression of alpha(2,3)- and alpha(2,6)-sialylated oligosaccharides was investigated.
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