IL-17A is elevated in sera of patients with poorly differentiated ovarian papillary serous cystadenocarcinoma

2013 ◽  
Vol 13 (6) ◽  
pp. 417-425 ◽  
Author(s):  
Mahyar Malekzadeh ◽  
Alamtaj Samsami Dehaghani ◽  
Abbas Ghaderi ◽  
Mehrnoosh Doroudchi
Keyword(s):  
Serous Cystadenocarcinoma ◽  
Poorly Differentiated

Motility of leukemic lymphocytes

1990 ◽  
Vol 48 (3) ◽  
pp. 368-369
Author(s):  
Manoj Raje ◽  
Karvita B. Ahluwalia
Keyword(s):  
Quantitative Data ◽  
Laser Doppler Velocimetry ◽  
Acute Lymphocytic Leukemia ◽  
Lymphocytic Leukemia ◽  
Cellular Space ◽  
Differentiated Cells ◽  
Poorly Differentiated ◽  
Solid Tissues ◽  
Well Differentiated ◽  
Reduced Mobility

In Acute Lymphocytic Leukemia motility of lymphocytes is associated with dissemination of malignancy and establishment of metastatic foci. Normal and leukemic lymphocytes in circulation reach solid tissues where due to in adequate perfusion some cells get trapped among tissue spaces. Although normal lymphocytes reenter into circulation leukemic lymphocytes are thought to remain entrapped owing to reduced mobility and form secondary metastasis. Cell surface, transmembrane interactions, cytoskeleton and level of cell differentiation are implicated in lymphocyte mobility. An attempt has been made to correlate ultrastructural information with quantitative data obtained by Laser Doppler Velocimetry (LDV). TEM of normal & leukemic lymphocytes revealed heterogeneity in cell populations ranging from well differentiated (Fig. 1) to poorly differentiated cells (Fig. 2). Unlike other cells, surface extensions in differentiated lymphocytes appear to originate by extrusion of large vesicles in to extra cellular space (Fig. 3). This results in persistent unevenness on lymphocyte surface which occurs due to a phenomenon different from that producing surface extensions in other cells.

Poorly Differentiated Skin Tumors

1991 ◽  
Vol 9 (4) ◽  
pp. 729-750
Author(s):  
Harriette Kahn ◽  
Wedad Hanna ◽  
Lynn From
Keyword(s):  
Skin Tumors ◽  
Poorly Differentiated

HER2 OVEREXPRESSION IN ENDOSCOPIC BIOPSY SAMPLE OF GASTRIC ADENOCARCINOMA BY IMMUNOHISTOCHEMISTRY

2012 ◽  
pp. 109-118
Author(s):  
Viet Nho Le ◽  
Van Huy Tran ◽  
Cong Thuan Dang ◽  
Van To Ta
Keyword(s):  
Gastric Adenocarcinoma ◽  
Undifferentiated Carcinoma ◽  
Signet Ring Cell Carcinoma ◽  
Signet Ring Cell ◽  
Endoscopic Biopsy ◽  
Her2 Overexpression ◽  
Tubular Adenocarcinoma ◽  
Signet Ring ◽  
Poorly Differentiated ◽  
Well Differentiated

Background and aim: HER2 overexpression by immunohistochemistry is a prognostic maker in gastric cancer and helps to select candidates benefitted from targeted therapy with trastuzumab. This study is aimed at the assessing HER2 overexpression and its relationship with endoscopic and histopathological findings of gastric adenocarcinoma. Objectives and methods: Biopsy samples from 92 gastric cancer patients were examined for HER2 status by immunohistochemical staining. Results: 6.5% of tumors were cardia tumors and 93.5% were non-cardia tumors. Using the Lauren classification, 51.1% were intestinal type and 48.9% were diffuse type. Using WHO classification, 54.3% were tubular adenocarcinoma, 7.6% were mucinous adenocarcinoma, 15.2% were signet-ring cell carcinoma, and 22.8% were undifferentiated carcinoma. 32.6% were well-differentiated, 15.2% were moderately-differentiated, and 52.2% were poorly-differentiated carcinoma. HER2 was positive in 20.7% of gastric carcinomas, 50% cardia tumors and 18.6% non-cardia tumors. HER2 positivity among polypoid, fungating, ulcerated, and infiltrative types were 38.5%, 29.7%, 9.1% and 0%, respectively. HER2 overexpression in intestinal type was higher than that in diffuse type (31.9% vs. 8.9%, p = 0.009). HER2 overexpression in tubular adenocarcinoma, mucinous adenocarcinoma, signet-ring cell carcinoma, and undifferentiated carcinoma was 28.0%, 14.3%, 7.1% and 14.3%, respectively. HER2 overexpressions were different between differentiation degrees: 30% of well-differentiated tumors, 35.7% moderately-differentiated tumors, and 10.4% of poorly-differentiated tumors (p = 0.037). Conclusions: HER2 overexpression was found in 20.7% of endoscopic biopsy sample of gastric adenocarcinoma and was associated with endoscopic gross characteristic, Lauren histologic type and differentiation degree.

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