Mouse MCP-3 (Colorimetric) ELISA Kit

Background: Urothelial carcinoma (UC) is one of most common genitourinary malignancy and the spectrum of disease ranges from in situ lesions to muscle-invasive cancers. The non muscle-invasive lesions have tendency to recur or progress to muscle-invasive disease. The study of the immune profile may identify immune determinants associated with high-grade, recurrence, and invasion in patients with UC. Methods: Pathway-focused RT2 profiler arrays were used to screen patients with UC for dysregulation of candidate genes of Th1-Th2-Th3 and NF kappa B pathways, which were then validated by real-time polymerase chain reaction on tumor samples and correlated with grade, recurrence, and invasion of tumors to identify their role in predicting behavior of the tumor. The cytokines found associated with recurrence were then validated in urine of patients with UC. Results: IFN gamma, IL2, IL4, IL10, IL17, CCL7, CTLA4, and SPP1 of the cytokine pathway and TLR4, TLR3, RELA, NF kappa B1, and MYD88 of the NF kappa B pathway were found differentially expressed in patients with urothelial cancer by array and quantative real-time polymerase chain reaction. Among these, IL10 and SPP1 were found consistently up-regulated in high-grade, invasive, and recurrent cases and up regulated IL10 and CTLA4 were found associated with a short recurrence-free survival time (P = 0.001 and P = 0.065). Urinary IL10 concentration was significantly higher in both patients with cancer and cystitis compared with healthy controls, but the difference in concentration between patients with cancer and cystitis patients was not statistically significant. However, urinary CTLA4 concentrations were found to be significantly higher in urothelial cancer patients compared with healthy controls and cystitis cases and found to be associated with poor recurrence-free survival. Conclusion: The study indicates that high urinary CTLA4 concentration raises the index of suspicion of recurrence in a known case of urothelial cancer and may be used as a surveillance marker. (C) 2016 Elsevier Inc. All rights reserved.

Background: Understanding the molecular mechanisms of nanomaterial interacting with cellular systems is important for appropriate risk assessment. The identification of early biomarkers for potential (sub-) chronic effects of nanoparticles provides a promising approach towards cost-intensive and animal consuming long-term studies. As part of a 90-day inhalation toxicity study with CeO2 NM-212 and BaSO4 NM-220 the present investigations on gene expression and immunohistochemistry should reveal details on underlying mechanisms of pulmonary effects. The role of alveolar epithelial cells type II (AEII cells) is focused since its contribution to defense against inhaled particles and potentially resulting adverse effects is assumed. Low dose levels should help to specify particle-related events, including inflammation and oxidative stress. Results: Rats were exposed to clean air, 0.1, 0.3, 1.0, and 3.0 mg/m(3) CeO2 NM-212 or 50.0 mg/m(3) BaSO4 NM-220 and the expression of 391 genes was analyzed in AEII cells after one, 28 and 90 days exposure. A total number of 34 genes was regulated, most of them related to inflammatory mediators. Marked changes in gene expression were measured for Ccl2, Ccl7, Ccl17, Ccl22, Ccl3, Ccl4, Il-1 alpha, Il-1 beta, and Il-1rn (inflammation), Lpo and Noxo1 (oxidative stress), and Mmp12 (inflammation/lung cancer). Genes related to genotoxicity and apoptosis did not display marked regulation. Although gene expression was less affected by BaSO4 compared to CeO2 the gene pattern showed great overlap. Gene expression was further analyzed in liver and kidney tissue showing inflammatory responses in both organs and marked downregulation of oxidative stress related genes in the kidney. Increases in the amount of Ce were measured in liver but not in kidney tissue. Investigation of selected genes on protein level revealed increased Ccl2 in bronchoal-veolar lavage of exposed animals and increased Lpo and Mmp12 in the alveolar epithelia. Conclusion: AEII cells contribute to CeO2 nanoparticle caused inflammatory and oxidative stress reactions in the respiratory tract by the release of related mediators. Effects of BaSO4 exposure are low. However, overlap between both substances were detected and support identification of potential early biomarkers for nanoparticle effects on the respiratory system. Signs for long-term effects need to be further evaluated by comparison to a respective exposure setting.