[Morphology of synovial cells of the human in organ and explant cultures]. 1988

A Zschäbitz, and E Stofft, and T Reichling, and J Rude, and M D Kramer
Anatomisches Institut, Johannes Gutenberg-Universität Mainz.

Biopsy material of synovial tissue was taken from 36 patients (with arthrosis, rheumatoid arthritis, traumatic and unaffected joints). Cell and tissue cultures, as well as cells dissociated by enzymes, were investigated by light microscopy (LM), immunohistochemistry, and electron microscopy. Synovial A-cells were endowed with all morphological characteristics of phagocytic capacity but lacking the peroxidase reaction. In contrast to the monocytes, they were not immunostained by OKM-1 antibodies. The A-cells could be observed in subsequent in vitro growth for up to 2 weeks. In addition to B-cells, a third cell type was identified. This cell type had the morphological characteristics of a dendritic cell and was glass and plastic adherent. It can be referred to also as a stellate cell. We assume that these stellate cells represent modified synovial fibroblasts.

UI MeSH Term Description Entries
D007718 Knee Injuries Injuries to the knee or the knee joint. Injuries, Knee,Injury, Knee,Knee Injury
D008854 Microscopy, Electron Microscopy using an electron beam, instead of light, to visualize the sample, thereby allowing much greater magnification. The interactions of ELECTRONS with specimens are used to provide information about the fine structure of that specimen. In TRANSMISSION ELECTRON MICROSCOPY the reactions of the electrons that are transmitted through the specimen are imaged. In SCANNING ELECTRON MICROSCOPY an electron beam falls at a non-normal angle on the specimen and the image is derived from the reactions occurring above the plane of the specimen. Electron Microscopy
D009924 Organ Culture Techniques A technique for maintenance or growth of animal organs in vitro. It refers to three-dimensional cultures of undisaggregated tissue retaining some or all of the histological features of the tissue in vivo. (Freshney, Culture of Animal Cells, 3d ed, p1) Organ Culture,Culture Technique, Organ,Culture Techniques, Organ,Organ Culture Technique,Organ Cultures
D010003 Osteoarthritis A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage. In the foreign literature it is often called osteoarthrosis deformans. Arthritis, Degenerative,Osteoarthrosis,Osteoarthrosis Deformans,Arthroses,Arthrosis,Arthritides, Degenerative,Degenerative Arthritides,Degenerative Arthritis,Osteoarthritides,Osteoarthroses
D010587 Phagocytosis The engulfing and degradation of microorganisms; other cells that are dead, dying, or pathogenic; and foreign particles by phagocytic cells (PHAGOCYTES). Phagocytoses
D004798 Enzymes Biological molecules that possess catalytic activity. They may occur naturally or be synthetically created. Enzymes are usually proteins, however CATALYTIC RNA and CATALYTIC DNA molecules have also been identified. Biocatalyst,Enzyme,Biocatalysts
D006801 Humans Members of the species Homo sapiens. Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D001172 Arthritis, Rheumatoid A chronic systemic disease, primarily of the joints, marked by inflammatory changes in the synovial membranes and articular structures, widespread fibrinoid degeneration of the collagen fibers in mesenchymal tissues, and by atrophy and rarefaction of bony structures. Etiology is unknown, but autoimmune mechanisms have been implicated. Rheumatoid Arthritis
D001706 Biopsy Removal and pathologic examination of specimens from the living body. Biopsies
D013583 Synovial Membrane The inner membrane of a joint capsule surrounding a freely movable joint. It is loosely attached to the external fibrous capsule and secretes SYNOVIAL FLUID. Synovium,Membrana Synovialis Capsulae Articularis,Membrane, Synovial,Membranes, Synovial,Synovial Membranes

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