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Monday, March 24, 2008

Fwd: [Use of immunocytochemical assays in the study of exudates from serous cavities in the practical work of a laboratory]



---------- Forwarded message ----------
From: HubMed - mesothelioma cancer <rssfwd@rssfwd.com>
Date: Sat, Mar 22, 2008 at 1:20 PM
Subject: [Use of immunocytochemical assays in the study of exudates from serous cavities in the practical work of a laboratory]
To: mesothelioma77@gmail.com


[1]Klin Lab Diagn. 2008 Jan; 20-2, 35-6
Grigoruk OG, Bazulina LM, Lazarev AF

The clinical introduction of new methods for processing fluid samples and the application of supplementary methods for improving the diagnostic accuracy of the pattern of pleurisy is very important for differential diagnosis. The possibilities of using immunocytochemical assay in the practical work of a clinical diagnostic (cytological) laboratory were studied in 96 patients, including 78 and 18 patients with pleural and ascitic fluids, respectively). A Cytospin-IV centrifuge was used for immunocytochemical assay by the routine procedure. The Streptadivin-biotin LSAB2 and EnVision+ test systems were employed to visualize an antigen/antibody reaction. Diaminobenzidine (DAB) was used as a chromogen. A set of markers, comprising 11 antibodies, was applied to the verification of a neoplasm from serous cavities. Mesothelioma was diagnosed in 65 patients. Epithelial mesothelioma was identified in 62 (95.4%) cases. Mesothelioma cells were positive to vimentin and ceratins, calretinin, mesothelin, and thrombomodulin. In 31 cases, adenogenic carcinoma metastases to the serous cavities were typified by an immunopositive reaction to CEA, Ber-EP4, EMA, and cytokeratins and a negative reaction to calretinin, mesothelin, and thrombomodulin. There was occasionally a positive reaction to CD-15 and vimentin.



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Source: http://www.hubmed.org/display.cgi?uids=18314775
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Fwd: MR imaging of ovarian tumors using folate-receptor-targeted contrast agents.



---------- Forwarded message ----------
From: HubMed - cancer <rssfwd@rssfwd.com>
Date: Sat, Mar 22, 2008 at 1:20 PM
Subject: MR imaging of ovarian tumors using folate-receptor-targeted contrast agents.
To: mesothelioma77@gmail.com


[1]Pediatr Radiol. 2008 Mar 21;
Wang ZJ, Boddington S, Wendland M, Meier R, Corot C, Daldrup-Link H

BACKGROUND: Because of its over-expression in many human tumors, the folate receptor (FR) is a promising target for tumor-specific imaging. OBJECTIVE: To evaluate the uptake of FR-targeted gadolinium (P866) and iron-oxide (P1048) agents in an ovarian tumor model. MATERIALS AND METHODS: FR-positive ovarian cancer cells (IGROV-1) were incubated with FR-targeted agents (P866 or P1048) in the absence or presence of competing free folate. Intracellular gadolinium or iron-oxide concentrations were measured. MR imaging of implanted ovarian tumors in rats was performed following injection of FR-targeted (P866 and P1048) and nontargeted (P1001 and P904) agents. Changes in longitudinal and transverse relaxation rates (DeltaR1 and DeltaR2), which were proportional to the contrast agent concentration in the tumors, were compared between tumors injected with FR-targeted and nontargeted agents. RESULTS: IGROV-1 cells showed uptake of P866 and P1048, which decreased with competing free folate. The DeltaR1 values were higher at 1 h following injection of P866 than following injection of P1001 (P

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Source: http://www.hubmed.org/display.cgi?uids=18357444
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