TY - THES A1 - Löser, Andreas T1 - Herstellung und Charakterisierung von Antikörpern gegen die Geschmacksrezeptoren T1R1 und T1R2 T1 - Production and characterisation of antibodies versus the taste receptors T1R1 and T1R2 N2 - Gustducin ist ein G-Protein, das bei der Geschmackswahrnehmung von "süss" und "bitter" eine Rolle spielt. Es wurde auch im Magen-Darm-Trakt entdeckt. Die Geschmacksrezeptoren T1R1 und T1R2 sind zu 10-20% mit Gustducin auf der Zunge coexprimiert. Kommen auch sie im Magen-Darm-Trakt vor ? N2 - Gustducin is a G-protein, which plays an important role in the taste perception of "sweet" and "bitter". It was also detected in cells of the GIT. The two taste receptors T1R1 and T1R2 are up to 20% coexpressed with gustducin in the tongue. Can they be detected in the GIT, too? KW - Gustducin KW - T1R1 KW - T1R2 KW - Geschmacksrezeptor KW - Gustducin KW - T1R1 KW - T1R2 KW - Taste receptor Y1 - 2002 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-6000 ER - TY - JOUR A1 - Vergho, Daniel Claudius A1 - Kneitz, Susanne A1 - Kalogirou, Charis A1 - Burger, Maximilian A1 - Krebs, Markus A1 - Rosenwald, Andreas A1 - Spahn, Martin A1 - Löser, Andreas A1 - Kocot, Arkadius A1 - Riedmiller, Hubertus A1 - Kneitz, Burkhard T1 - Impact of miR-21, miR-126 and miR-221 as Prognostic Factors of Clear Cell Renal Cell Carcinoma with Tumor Thrombus of the Inferior Vena Cava N2 - Clear cell renal cell carcinoma (ccRCC) characterized by a tumor thrombus (TT) extending into the inferior vena cava (IVC) generally indicates poor prognosis. Nevertheless, the risk for tumor recurrence after nephrectomy and thrombectomy varies. An applicable and accurate prediction system to select ccRCC patients with TT of the IVC (ccRCC/TT) at high risk after nephrectomy is urgently needed, but has not been established up to now. To our knowledge, a possible role of microRNAs (miRs) for the development of ccRCC/TT or their impact as prognostic markers in ccRCC/TT has not been explored yet. Therefore, we analyzed the expression of the previously described onco-miRs miR-200c, miR-210, miR-126, miR-221, let-7b, miR-21, miR-143 and miR-141 in a study collective of 74 ccRCC patients. Using the expression profiles of these eight miRs we developed classification systems that accurately differentiate ccRCC from non-cancerous renal tissue and ccRCC/TT from tumors without TT. In the subgroup of 37 ccRCC/TT cases we found that miR-21, miR-126, and miR-221 predicted cancer related death (CRD) accurately and independently from other clinico-pathological features. Furthermore, a combined risk score based on the expression of miR-21, miR-126 and miR-221 was developed and showed high sensitivity and specificity to predict cancer specific survival (CSS) in ccRCC/TT. Using the combined risk score we were able to classify ccRCC/TT patients correctly into high and low risk cases. The risk stratification by the combined risk score (CRS) will benefit from further cohort validation and might have potential for clinical application as a molecular prediction system to identify high- risk ccRCC/TT patients. KW - forecasting KW - metastasis KW - renal cancer KW - renal cell carcinoma KW - kidneys KW - surgical oncology KW - surgical and invasive medical procedures KW - regression analysis Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-113633 ER -