Browsing by Subject "Cancer"

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Mangelernährung bei Tumorpatienten unter Chemotherapie : Anwendung und Weiterentwicklung eines computergestützten Programmes zur Erfassung und Vorhersage des Ernährungsstatus onkologischer Patienten
(2012) Renger, Sebastian; Biesalski, Hans-Konrad
Malnutrition is a serious problem in the health care of cancer in- and outpatients. Especially for outpatients there is little information on their nutritional status available, because nutritional screenings are not often used, although there is plenty of them accessible. The workgroup of Professor Biesalski developed a software, called oncoMAT, to calculate the current and the prospective nutritional status of tumour patients. Patient data of cancer patients from Tübingen and Freiburg were collected and analysed to test the program. For comparison the gold standard SGA (Suvjective Global Assessment) was used. Anthropometry, BIA, blood analysis and patient questioning about adverse events were used to evaluate the nutritional status as well. Results were checked for specificity and sensitivity. The Risk-Score statements were evaluated considering different model-conditions. To calculate the prognostic score, patient- and illnessrelated parameters were proved by a variance analysis and a multiple linear regression.
NOD1 cooperates with HAX‐1 to promote cell migration in a RIPK2‐ and NF‐ĸB‐independent manner
(2023) Hezinger, Lucy; Bauer, Sarah; Ellwanger, Kornelia; Piotrowsky, Alban; Biber, Felix; Venturelli, Sascha; Kufer, Thomas A.
The human Nod-like receptor protein NOD1 is a well-described pattern-recognition receptor (PRR) with diverse functions. NOD1 associates with F-actin and its protein levels are upregulated in metastatic cancer cells. A hallmark of cancer cells is their ability to migrate, which involves actin remodelling. Using chemotaxis and wound healing assays, we show that NOD1 expression correlated with the migration rate and chemotactic index in the cervical carcinoma cell line HeLa. The effect of NOD1 in cell migration was independent of the downstream kinase RIPK2 and NF-ĸB activity. Additionally, NOD1 negatively regulated the phosphorylation status of cofilin, which inhibits actin turnover. Co-immunoprecipitation assays identified HCLS1-associated protein X-1 (HAX-1) as a previously unknown interaction partner of NOD1. Silencing of HAX-1 expression reduced the migration behaviour to similar levels as NOD1 knockdown, and simultaneous knockdown of NOD1 and HAX-1 showed no additive effect, suggesting that both proteins act in the same pathway. In conclusion, our data revealed an important role of the PRR NOD1 in regulating cell migration as well as chemotaxis in human cervical cancer cells and identified HAX-1 as a protein that interacts with NOD1 and is involved in this signalling pathway.