meningioma/carbohydrate

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(Neo)glycoproteins as tools in neuropathology: histochemical patterns of the extent of expression of endogenous carbohydrate-binding receptors, like lectins, in meningiomas.

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Biotinylated (neo)glycoproteins were used to specifically detect endogenous sugar receptors such as lectins in sections of formaldehydefixed, paraffin-embedded tissue from meningiomas. The histochemical methods used consisted of the application of a carrier protein and various covalently linked

Lectin binding in meningiomas.

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Forty-two meningiomas of different morphological sub-type were examined to determine their pattern of binding to 11 different lectins which characterize cell surface components such as carbohydrate residues. Histiocytic and xanthoma cells within meningiomas could be demonstrated with six different

Determination of meningioma brain tumour grades using Raman microspectroscopy imaging.

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Raman spectroscopy is a powerful technique used to analyse biological materials, where spectral markers such as proteins (1500-1700 cm-1), carbohydrates (470-1200 cm-1) and phosphate groups of DNA (980, 1080-1240 cm-1) can be detected in a complex biological medium. Herein, Raman microspectroscopy

Immunohistochemical study of Tn, sialosyl-Tn and T antigens in human meningiomas.

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Since an aberrant glycosylation associated with abnormal expression of cell surface carbohydrates has been described in many human tumours, we have investigated the expression of simple mucintype carbohydrate antigens (Tn, sialosyl-Tn and T) in 30 formalin-fixed paraffin-embedded surgical specimens

Epidermal growth factor receptor expression in 72 meningiomas.

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The expression of epidermal growth factor receptor (EGF-R) was studied immunohistochemically in 72 meningiomas using two monoclonal antibodies with specificities to protein and carbohydrate components, respectively, of the external domain of the EGF-R. One third of the tumors had cytoplasmic and

Distribution of cellular carbohydrate moieties in human dysontogenetic brain tumors, especially in craniopharyngioma and epidermoid/dermoid.

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Cellular carbohydrate moieties of 65 human dysonotogenetic brain tumors (craniopharyngioma, epidermoid/dermoid, Rathke cleft cyst, germinoma and non-germinomatous germ-cell tumors) and 60 common brain tumors (glioma, meningioma, neurinoma and pituitary adenoma) were investigated histochemically

Secretory meningioma: clinical, histologic, and immunohistochemical findings in 31 cases.

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BACKGROUND Secretory meningioma is a rare histologic variant characterized by a unique epithelial differentiation of meningothelial cells resulting in the production of hyaline inclusions. Most previous reports have presented single case observations. The authors selected 31 cases for a

Spectrochemical differentiation of meningioma tumours based on attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectroscopy.

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Meningiomas are the commonest types of tumours in the central nervous system (CNS). It is a benign type of tumour divided into three WHO grades (I, II and III) associated with tumour growth rate and likelihood of recurrence, where surgical outcomes and patient treatments are dependent on the

Dolichos biflorus agglutinin binding to intracranial germ-cell tumors: detection of embryonal components in germinomas.

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Dolichos biflorus agglutinin (DBA) binding was examined in 32 cases of intracranial human germ-cell tumors. In embryonal carcinomas, intense DBA binding sites were found on the free surface and cytoplasm of embryonal cells. In teratomas, glandular structures often had positive DBA binding sites.

Detection of acid mucopolysaccharides in human brain tumors by histochemical methods.

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Acid mucopolysaccharides (glycosaminoglycans) are identified by histochemical methods in biopsies of 107 human brain tumors. Isomorphous oligodendrogliomas and astrocytomas stained with alcian blue show marked, weblike, or diffuse distribution and concentration of acid mucopolysaccharides.

Glycosphingolipid antigens in neural tumor cell lines and anti-glycosphingolipid antibodies in sera of patients with neural tumors.

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To characterize biomarkers in neural tumors, we analyzed the acidic lipid fractions of 13 neural tumor cell lines using enzyme-linked immunoabsorbent assay (ELISA) and high-performance thin-layer chromatography (HPTLC) immunostaining. Sulfated glucuronosyl glycosphingolipids (SGGLs) are cell surface

Localization of endogenous sugar-binding proteins (lectins) in tumors of the central and peripheral nervous system by biotinylated neoglycoproteins.

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The carbohydrate part of cellular glycoconjugates - glycoproteins, glycoproteins, glycolipids and proteoglycans - and specific endogenous sugar receptors, i.e. lectins, can establish a system of biological recognition based on protein-sugar interactions on the cellular and subcellular levels. To

Proton and phosphorus nuclear magnetic resonance spectroscopy of human brain tumor extracts with automatic data classification: a preliminary study.

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High-resolution one-dimensional proton and phosphorus and two dimensional COSY proton Magnetic Resonance Spectroscopy were used to investigate the lipid and carbohydrate metabolism of human brain tumors. Sixteen meningioma (MG) (benign tumors) and ten glioblastoma (GB) (malignant tumors) samples

Noninvasive differentiation of tumors with use of localized H-1 MR spectroscopy in vivo: initial experience in patients with cerebral tumors.

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A recently developed method for image-selected localized hydrogen-1 magnetic resonance (MR) spectroscopy was assessed in the differential diagnosis of nine primary and secondary cerebral tumors, including four gliomas, two meningiomas, one neurilemoma, one arachnoid cyst, and one metastasis of

First human treatment of resistant neoplastic meningitis by intrathecal administration of MTX plus (125)IUdR.

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OBJECTIVE Neoplastic meningitis is often the final outcome of disseminated cancer and is rapidly lethal. Its limited treatment relies on systemic or intrathecal chemotherapy with methotrexate (MTX) or thiotepa. When 5-iodo-2'-deoxyuridine labeled with (125)I ((125)IUdR) is incorporated into the DNA

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