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Lectin histochemistry of resected adenocarcinoma of the lung: helix pomatia agglutinin binding is an independent prognostic factor.
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The worldwide incidence of adenocarcinoma of the lung is rising. Unfortunately, no significant prognostic marker beyond the classical TNM staging exists to stratify these patients for appropriate therapy. Because lectins, carbohydrate-binding proteins, have been shown to be useful prognostic markers
Lectin Histochemistry Shows WGA, PHA-L and HPA Binding Increases During Progression of Human Colorectal Cancer.
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OBJECTIVE
Most colorectal carcinomas develop from an adenoma-carcinoma sequence to metastatic disease. The aim of the present study was to use lectins, carbohydrate-binding proteins, to detect changes in glycosylation during this malignant progression.
METHODS
Sections from normal colorectal mucosa,
Prostaglandin E2 alters terminal glycosylation of high molecular weight glycoproteins, released by pig gastric mucous cells in vitro.
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The gastric mucus layer consists of high molecular weight glycoproteins (HMG). E-Type prostaglandins (PGs) stimulate total HMG release from isolated gastric mucous cells. We determined the effects of PGE2 on HMG glycosylation. Pig gastric mucous cells were cultured for 20 h with 1 mumol/l PGE2.
Lectinhistochemical detection of terminal carbohydrate residues in the enteric myxozoan Enteromyxum leei parasitizing gilthead seabream Sparus aurata (Pisces: Teleostei): a study using light and transmission electron microscopy.
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The presence of terminal carbohydrate residues in Enteromyxum leei (Diamant, Lom et Dyková, 1994) Palenzuela, Redondo et Alvarez-Pellitero, 2002 stages in gilthead seabream intestines was studied at light microscopy (LM) and transmission electron microscopy (TEM) level using lectin histochemical
Complex thiolated mannose/quinone film modified on EQCM/Au electrode for recognizing specific carbohydrate-proteins.
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A complex thiolated mannose (TM)/quinone functionalised polythiophene (QFPT) thin film was modified on EQCM/Au electrode for recognition of specific carbohydrate-proteins. Different lectins such as those from Sambucus nigra (elder berry), Arachis hypogaea (peanut), Ulex europaeus (gorse, furze),
Estrous cycle-related alterations in the expression of glycoconjugates and lectins in the mouse endometrium shown histochemically.
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Alterations of the hormonal status may influence diverse cell features relevant to intra- and intercellular communication. We studied histochemically the expression of glycans and endogenous sugar-binding proteins (endolectins) in the mouse endometrium during the estrous cycle. The
Glycan profiling of endometrial cancers using lectin microarray.
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Cell surface glycans change during the process of malignant transformation. To characterize and distinguish endometrial cancer and endometrium, we performed glycan profiling using an emerging modern technology, lectin microarray analysis. The three cell lines, two from endometrial cancers
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
Changes in glycan distribution within the porcine interhaemal barrier during gestation.
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Changing patterns of glycan distribution are described in porcine placentae at 15, 19, 26, 43, 58, 69 and 109 days gestation, using a carefully selected panel of lectins that allowed partial analysis of saccharide classes and sequences. The lectins used were from Galanthus nivalis, Pisum sativum,
Characterisation of N-glycans bound to IGFBP-3 in sera from healthy adults.
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Human IGFBP-3 contains three potential N-linked glycosylation sites. Published data concerning the type and saccharide composition of the N-glycans is scarce. The aim of this study was to characterise N-glycans covalently attached to IGFBP-3 from sera of healthy adults (men and women). In order to
The major Kurloff cell glycoproteins: lectin affinities, glycosidase susceptibilities and relationship with the sialylated acid phosphatases of the Kurloff body.
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Urea-soluble fractions from purified Kurloff cells (KC) were analysed by affinoblotting. Lectin reactivities were quasi-exclusively confined to the 30-35 kDa major glycoproteins (mGPs) (responsible for the PAS positivity of the Kurloff body) with strong affinities for Canavalia ensiformis lectin,
Fucose and sialic acid expressions in human seminal fibronectin and α{1} -acid glycoprotein associated with leukocytospermia of infertile men.
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BACKGROUND
The aim of this study was to compare fucose and sialic acid residue expression on fibronectin and α{1}-acid glycoprotein in the seminal plasma of men suspected of infertility and suffering from leukocytospermia.
METHODS
Seminal ejaculates were collected from 27 leukocytospermic and 18
Lectins and antibodies against blood-group antigens as tools for studying the cellular source of glycoproteins in human bronchial fluid: a comparison of morphological and biochemical observations.
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We used nine lectins and three antibodies directed against ABO blood-group antigens in morphological and Western-blot experiments to investigate the source of secretory products of human large airways. In tissue sections, the lectins from Griffonia simplicifolia (type I B4), Dolichos biflorus, and
Terminal monosaccharide screening of synovial immunoglobulins G and A for the early detection of rheumatoid arthritis.
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The expressions of some terminal glycotopes of synovial immunoglobulins G, A, and M were analysed in relation to rheumatoid arthritis (RA) progression defined according to early and advanced radiological changes in patients' hands. The relative amounts of terminal monosaccharides were determined by
Glycoconjugates of the human trabecular meshwork: a lectin histochemical study.
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Twelve specimens of resin-embedded human trabecular meshwork were probed with a panel of 21 biotinylated lectins, using an avidin-biotin peroxidase revealing system, in order to determine the normal pattern of saccharide expression in this tissue. High-mannose, intermediate and hybrid N-linked
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