Non Leucocyte Cells
Mostrando 1-12 de 22 artigos, teses e dissertações.
-
1. Estudo do modelo de quimeras de medula óssea (WT/IFNgR-KO) para examinar o papel do IFN-g sobre as células não leucocitárias na infecção pelo Trypanosoma cruzi. / Analysis of the model of bone marrow chimeras (WT/IFNg-R-KO) to examine the role of IFNK-g upon non leukocytes in Trypanosoma cruzi infection.
Although we know the role played by leukocytes in Trypanosoma cruzi control, we ignore the contribution of structural cells (myocytes, hepatocytes, etc). These cells could signal the presence of the parasite and/or mediate an effector activity which could increase in response to cytokines, as IFN-g. To evaluate if non-leukocytes respond to IFNg, contributing
Publicado em: 2008
-
2. Endometrial leucocytes: expression of steroid hormone receptors.
BACKGROUND: Stromal leucocyte populations in human endometrium comprise T cells, macrophages, and phenotypically unusual endometrial granulated lymphocytes. Their proportions vary during the menstrual cycle and, in particular, endometrial granulated lymphocytes increase in number in the late secretory phase. The stimulus responsible for these cyclical change
-
3. Cryopreservation of red blood cells: effect of freezing on red cell quality and residual lymphocyte immunogenicity.
AIMS--To investigate treatment with glycerol/washing as a potential substitute for freeze-thawing in the production of leucocyte depleted red cell concentrates for patients with a history of non-haemolytic reactions following transfusion. METHODS--The standard procedure of treatment with glycerol/-80 degrees C freezing/thawing/washing was compared with a sim
-
4. Differential regulation of leucocyte L-selectin (CD62L) expression in normal lymphoid and inflamed extralymphoid tissues.
AIMS: To study tissue expression of L-selectin, a leucocyte cell surface molecule that is considered to be involved in adhesion to certain endothelia, particularly in peripheral lymph nodes and during inflammation, and is shed upon leucocyte activation. METHODS: Leucocytes were examined by immunohistochemistry and double immunofluorescence staining in variou
-
5. A novel population of human CD56+ human leucocyte antigen D-related (HLA-DR+) colonic lamina propria cells is associated with inflammation in ulcerative colitis
Ulcerative colitis (UC) involves inappropriate mucosal immune responses to intestinal microbiota. Gut dendritic cells (DC) are central immunoregulators of the response to commensal bacteria, and the subset of CD11c+ cells within the human leucocyte antigen D-related (HLA-DR+) lineage (lin)–/dim population are activated in inflammatory bowel disease. We hyp
Blackwell Science Inc.
-
6. Cellular distribution of human leucocyte adhesion molecule ICAM-3.
AIMS--To describe the distribution of the recently cloned human leucocyte adhesion molecule ICAM-3 in normal and neoplastic tissues and cell lines. METHODS--A panel of four monoclonal antibodies to ICAM-3 were used to stain cell lines and sections of human lymphoid tissues using the alkaline phosphatase-anti-alkaline phosphatase immunocytochemical method (AP
-
7. Assessment of immunological techniques in the diagnosis and prognosis of ocular malignant melanoma.
Tests of cell mediated immunity (one and two stage leucocyte migration inhibition assays) and humoural immunity (membrane immunofluorescence and serum effects on leucocyte migration) were done with leucocytes and sera from 36 patients with uveal melanoma, five with conjunctival melanoma, 21 with non-malignant ocular disease, and 189 with cutaneous melanoma.
-
8. Evidence for a human leucocyte antigen-DM-induced structural change in human leucocyte antigen-DOβ
Human leucocyte antigen (HLA)-DO is a non-classical major histocompatibility complex class II molecule which modulates the function of HLA-DM and the loading of antigenic peptides on molecules such as HLA-DR. The bulk of HLA-DO associates with HLA-DM and this interaction is critical for HLA-DO egress from the endoplasmic reticulum. HLA-DM assists the early s
Blackwell Science Inc.
-
9. Lymphocyte specific heterogeneity in the rat leucocyte common antigen (T200) is due to differences in polypeptide sequences near the NH2-terminus.
The leucocyte-common antigen (L-CA, T200 or CD45) consists of a family of heavily glycosylated glycoproteins of apparent Mr 180,000-240,000 which are restricted to lymphoid and myeloid cells. Forms of L-CA which differ in their apparent Mr, antigenicity and glycosylation are expressed on different lymphocyte types. One specific antigenic determinant called M
-
10. The effect of acrylamide on human polymorphonuclear neutrophils in vitro.
Acrylamide (CH2CHCONH2), the vinyl monomer of the industrially useful polymer polyacrylamide, is a recognised neurotoxin. Investigation in our laboratory indicated that, in addition to its neurotoxic effect, acrylamide depressed human polymorphonuclear leucocyte (PMN) chemotaxis in vitro. As genetic or chemical inhibition of PMN phagocytic function frequentl
-
11. Measurement of DNA synthesis in leucocyte microcultures
A microculture technique is described in which human peripheral blood leucocytes undergo DNA synthesis in response to specific and non-specific blastogenic factors. A sensitive Millipore filter assay technique is shown to be suitable for determining the incorporation of radioactive thymidine into the DNA of the stimulated cells in these microcultures. With t
-
12. Cytokeratin positive T cell malignant lymphoma.
A high grade T cell malignant lymphoma is described in which weak staining of tumour cells for leucocyte common antigen and T cell markers coexisted with strong positive cytoplasmic staining with the anticytokeratin marker CAM 5.2. This is the first report of non-CD30 positive T cell lymphoma showing cytokeratin positivity. On ultrastructural examination the