Gene/Protein Disease Symptom Drug Enzyme Compound
Pivot Concepts:   Target Concepts:
Query: EC:3.2.1.17 (lysozyme)
 21,489 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

Fifty-five cerebrospinal fluid (CSF) specimens from 42 patients with suspected meningeal tumor involvement were reviewed. Cytology in conjunction with immunocytochemistry identified 26 CSF specimens as malignant. There were fifteen cases of lymphoma, four cases of leukemia, two cases of carcinoma, and two cases of melanoma. A monoclonal light chain expression was demonstrated in nine out of eleven B cell lymphomas. The three T-cell lymphomas all expressed pan T markers (CD 3) and two the T-helper antigen (CD 4). One patient had meningeal involvement of a true histiocytic lymphoma which was identified by its large atypical cells which were positive for alpha-1-anti-trypsin and muramidase. In four patients with a primary diagnosis of acute lymphoblastic leukemia, CSF involvement was confirmed by the demonstration of blasts with CD 10 (cALLA) or light chain restriction. Epithelial or melanocytic markers were demonstrated on the tumor cells in CSF from the remaining four patients. In 29 CSF specimens a diagnosis of reactive lymphocytosis was made using cytomorphology which mostly was characterized by macrophages mixed with small mature lymphoid cells. Immunologic evaluation showed that these mature cells were CD 10 negative T-cells and only few specimens contained polyclonal B-cells. The subsequent clinical course of these patients showed no evidence of CNS malignancy. It is concluded that cytology should be used in conjunction with immunocytochemistry to accurately evaluate CSF specimens from patients with possible malignant meningitis.
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PMID:Diagnosis of lymphoma, leukemia, and metastatic tumor involvement of the cerebrospinal fluid by cytology and immunocytochemistry. 778 40

194 regional lymph nodes surgically removed because of cancer at various sites from 60 cancer patients are studied immunohistochemically and ultrastructurally. Monoclonal antibodies (MCAB) against antigens CD 1, CD 2, CD 3, CD 4, CD 8, CD 10, CD 19, CD 20, CD 30, CD 45, CD 56, BLA-36 were used for differentiating lymphoid cells. MCAB against alpha 1-antichymotrypsin, lysozyme, S100 protein, desmin, pan-cytokeratin, vimentin, laminin, collagen type IV, factor VIII; CD 35 were used as markers of non-lymphoid cells. Immunohistochemical classification of the hyperplastic follicular reaction is proposed: 1) typical B-cell follicle; 2) B-cell follicle with high content of T- and NK-cells; a) with domination of helper-inducer subpopulation, b) with domination of killer-suppressor sub-population; III) T-cell follicle; IV) non-lymphoid cell follicle. It was established that type I and IV follicular reaction correlates with a low 5-year survival, while type IIb and III. hyperplasia correlates with a favourable prognosis.
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PMID:[Hyperplastic follicular response of the regional lymph nodes in cancer (immunohistochemistry, ultrastructure, prognostic importance)]. 933 58

Claw biopsy samples of 11 dogs with lupoid onychodystrophy were evaluated. They were stained with hematoxylin and eosin and with antibodies against CD 3 as a T-cell marker, BLA 36 and HM 57 (CD 79alpha) as B-cell markers, and lysozyme, Mac 387, and major histocompatibility complex (MHC) class II as a marker for histiocytes using an immunoperoxidase and avidin-biotin technique. Inflammatory cells were counted in five high-power fields. The inflammatory infiltrate comprised predominantly B cells and T cells. Macrophages were typically only present in small numbers. CD 3, BLA 36, lysozyme, and MHC class II preserved significant antigenicity during formalin fixation and short decalcification for 24-48 hours, whereas CD 79alpha and particularly Mac 387 seemed to be more susceptible to denaturation by the decalcification process.
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PMID:Immunohistochemical evaluation of mononuclear infiltrates in canine lupoid onychodystrophy. 1471 66