Some lectins were used to study the localization of sugar residues on the endothelial cell surface in the pia mater blood vessels of control (WKY) and hypertensive rats (SHR). The lectins tested recognized the following residues: beta-D-galactosyl (Ricinus communis agglutinin 120, RCA-1),
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,
An ontogeny study of the porcine semitendinosus muscle was conducted to meet two objectives: 1) to evaluate enzyme histochemistry, lectin cytochemistry and actin staining for usefulness as quantitative markers of muscle capillaries and 2) to describe the ontogeny of capillary density changes in
Thymic epithelial cells (TECs) are a key cell type in the thymic microenvironment essential for T cell development. However, intrinsic molecular mechanisms controlling TEC differentiation and activities are poorly defined. In this study, we found that deficiency of p53-induced phosphatase 1 (Wip1)
Tissue sections from 80 human breast carcinomas have been examined for evidence of binding of the two fucose-specific lectins, Lotus tetragonolobus and Ulex europeus I, with enzymes utilized as an indicator system. Both single-staining and double-staining methods (Lotus tetragonolobus-peroxidase and
The ultrastructural and immunocytochemical characteristics of microvascular cells from human subcutaneous fat tissue were studied after the addition of collagenase and Percoll density gradient, respectively. Monoclonal and polyclonal antibodies directed against antigens specific for endothelial
Previous studies utilizing enzyme histochemistry, electron microscopy, and immunohistochemistry have failed to establish the cell of origin in Kaposi's sarcoma. The authors have rigorously tested the prevailing hypothesis that the lesion defined as Kaposi's sarcoma is derived from vascular
Three cases of so-called pulmonary sclerosing hemangioma have been studied for endothelial markers (alkaline phosphatase, adenosine triphosphatase, factor VIII-related antigen, and Ulex europaeus I lectin), for intermediate filaments (keratin, vimentin), and for carcinoembryonic and epithelial
We studied 23 cases of capillary hemangioblastoma (CHB) of the cerebellum with 17 immunohistochemical cell markers in an attempt to define the nature of the so-called "stromal" cells. These cases were compared to four cases of intracranial metastatic renal cell carcinoma (RCC), which may mimic CHB
This study was performed to evaluate the application of different lectins and monoclonal antibodies against ABH antigens to detect and characterize carbohydrate structures in capillaries of skeletal muscle from humans and laboratory animals. Blood group specific lectins (Griffonia simplicifolia,
METHODS
Ninety disc herniations removed during surgery were studied by immunocytochemistry, using two different endothelial cell markers, to study the prevalence, morphology, and topography of blood vessels in disc herniations.
OBJECTIVE
To increase the specific localization of even very small blood
Lectins from Canavalia ensiformis, Phaseolus vulgaris, and Triticum vulgare react with arylamidase, alkaline phosphatase, gamma-glutamyltransferase, and cholinesterase of human sera by formation of enzymatically active, mostly insoluble complexes. Arylamidase, alkaline phosphatase, and
We estimated the concentrations, multiple forms, and lectin binding of five microsomal enzymes in particle free extracts from human kidney, pancreas, jejunal mucosa, and normal and cancerous liver. While arylesterase markedly reacted only with concanavalin A, arylamidase, alkaline phosphatase,
"Homing" of hematopoietic progenitor cells to the bone marrow occurs during the clinical practice of bone marrow transplantation. Its mechanism is unknown, although adhesive interactions between hematopoietic cells and sinusoidal endothelium in the bone marrow may be implicated. Studies of human
The purpose of this study was to evaluate the possibility of lectin-coupled microspheres to improve the targeted delivery of protein antigens to the lymphoid tissues of mucosal surfaces. Bovine serum albumin containing acid phosphatase model protein and polystyrene microspheres were coupled with
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