TY  - JOUR
A1  - Zaho, Huaying
A1  - Ghirlando, Rodolfo
A1  - Alfonso, Carlos
A1  - Arisaka, Fumio
A1  - Attali, Ilan
A1  - Bain, David L.
A1  - Bakhtina, Marina M.
A1  - Becker, Donald F.
A1  - Bedwell, Gregory J.
A1  - Bekdemir, Ahmet
A1  - Besong, Tabot M. D.
A1  - Birck, Catherine
A1  - Brautigam, Chad A.
A1  - Brennerman, William
A1  - Byron, Olwyn
A1  - Bzowska, Agnieszka
A1  - Chaires, Jonathan B.
A1  - Chaton, Catherine T.
A1  - Coelfen, Helmbut
A1  - Connaghan, Keith D.
A1  - Crowley, Kimberly A.
A1  - Curth, Ute
A1  - Daviter, Tina
A1  - Dean, William L.
A1  - Diez, Ana I.
A1  - Ebel, Christine
A1  - Eckert, Debra M.
A1  - Eisele, Leslie E.
A1  - Eisenstein, Edward
A1  - England, Patrick
A1  - Escalante, Carlos
A1  - Fagan, Jeffrey A.
A1  - Fairman, Robert
A1  - Finn, Ron M.
A1  - Fischle, Wolfgang
A1  - Garcia de la Torre, Jose
A1  - Gor, Jayesh
A1  - Gustafsson, Henning
A1  - Hall, Damien
A1  - Harding, Stephen E.
A1  - Hernandez Cifre, Jose G.
A1  - Herr, Andrew B.
A1  - Howell, Elizabeth E.
A1  - Isaac, Richard S.
A1  - Jao, Shu-Chuan
A1  - Jose, Davis
A1  - Kim, Soon-Jong
A1  - Kokona, Bashkim
A1  - Kornblatt, Jack A.
A1  - Kosek, Dalibor
A1  - Krayukhina, Elena
A1  - Krzizike, Daniel
A1  - Kusznir, Eric A.
A1  - Kwon, Hyewon
A1  - Larson, Adam
A1  - Laue, Thomas M.
A1  - Le Roy, Aline
A1  - Leech, Andrew P.
A1  - Lilie, Hauke
A1  - Luger, Karolin
A1  - Luque-Ortega, Juan R.
A1  - Ma, Jia
A1  - May, Carrie A.
A1  - Maynard, Ernest L.
A1  - Modrak-Wojcik, Anna
A1  - Mok, Yee-Foong
A1  - Mücke, Norbert
A1  - Nagel-Steger, Luitgard
A1  - Narlikar, Geeta J.
A1  - Noda, Masanori
A1  - Nourse, Amanda
A1  - Obsil, Thomas
A1  - Park, Chad K
A1  - Park, Jin-Ku
A1  - Pawelek, Peter D.
A1  - Perdue, Erby E.
A1  - Perkins, Stephen J.
A1  - Perugini, Matthew A.
A1  - Peterson, Craig L.
A1  - Peverelli, Martin G.
A1  - Piszczek, Grzegorz
A1  - Prag, Gali
A1  - Prevelige, Peter E.
A1  - Raynal, Bertrand D. E.
A1  - Rezabkova, Lenka
A1  - Richter, Klaus
A1  - Ringel, Alison E.
A1  - Rosenberg, Rose
A1  - Rowe, Arthur J.
A1  - Rufer, Arne C.
A1  - Scott, David J.
A1  - Seravalli, Javier G.
A1  - Solovyova, Alexandra S.
A1  - Song, Renjie
A1  - Staunton, David
A1  - Stoddard, Caitlin
A1  - Stott, Katherine
A1  - Strauss, Holder M.
A1  - Streicher, Werner W.
A1  - Sumida, John P.
A1  - Swygert, Sarah G.
A1  - Szczepanowski, Roman H.
A1  - Tessmer, Ingrid
A1  - Toth, Ronald T.
A1  - Tripathy, Ashutosh
A1  - Uchiyama, Susumu
A1  - Uebel, Stephan F. W.
A1  - Unzai, Satoru
A1  - Gruber, Anna Vitlin
A1  - von Hippel, Peter H.
A1  - Wandrey, Christine
A1  - Wang, Szu-Huan
A1  - Weitzel, Steven E
A1  - Wielgus-Kutrowska, Beata
A1  - Wolberger, Cynthia
A1  - Wolff, Martin
A1  - Wright, Edward
A1  - Wu, Yu-Sung
A1  - Wubben, Jacinta M.
A1  - Schuck, Peter
T1  - A Multilaboratory Comparison of Calibration Accuracy and the Performance of External References in Analytical Ultracentrifugation
JF  - PLoS ONE
N2  - Analytical ultracentrifugation (AUC) is a first principles based method to determine absolute sedimentation coefficients and buoyant molar masses of macromolecules and their complexes, reporting on their size and shape in free solution. The purpose of this multi-laboratory study was to establish the precision and accuracy of basic data dimensions in AUC and validate previously proposed calibration techniques. Three kits of AUC cell assemblies containing radial and temperature calibration tools and a bovine serum albumin (BSA) reference sample were shared among 67 laboratories, generating 129 comprehensive data sets. These allowed for an assessment of many parameters of instrument performance, including accuracy of the reported scan time after the start of centrifugation, the accuracy of the temperature calibration, and the accuracy of the radial magnification. The range of sedimentation coefficients obtained for BSA monomer in different instruments and using different optical systems was from 3.655 S to 4.949 S, with a mean and standard deviation of (4.304\(\pm\)0.188) S (4.4%). After the combined application of correction factors derived from the external calibration references for elapsed time, scan velocity, temperature, and radial magnification, the range of s-values was reduced 7-fold with a mean of 4.325 S and a 6-fold reduced standard deviation of \(\pm\)0.030 S (0.7%). In addition, the large data set provided an opportunity to determine the instrument-to-instrument variation of the absolute radial positions reported in the scan files, the precision of photometric or refractometric signal magnitudes, and the precision of the calculated apparent molar mass of BSA monomer and the fraction of BSA dimers. These results highlight the necessity and effectiveness of independent calibration of basic AUC data dimensions for reliable quantitative studies.
KW  - fluorescence-detected sedimentation
KW  - size exclusion chromatography
KW  - field flow fractionation
KW  - spinco ultracentrifuge
KW  - aggregation
KW  - bead models
KW  - velocity
KW  - hydrodynamics
KW  - biopharmaceuticals
KW  - proteins
Y1  - 2015
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-151903
VL  - 10
IS  - 5
ER  - 
TY  - JOUR
A1  - Ferreira, Manuel A.
A1  - Gamazon, Eric R.
A1  - Al-Ejeh, Fares
A1  - Aittomäki, Kristiina
A1  - Andrulis, Irene L.
A1  - Anton-Culver, Hoda
A1  - Arason, Adalgeir
A1  - Arndt, Volker
A1  - Aronson, Kristan J.
A1  - Arun, Banu K.
A1  - Asseryanis, Ella
A1  - Azzollini, Jacopo
A1  - Balmaña, Judith
A1  - Barnes, Daniel R.
A1  - Barrowdale, Daniel
A1  - Beckmann, Matthias W.
A1  - Behrens, Sabine
A1  - Benitez, Javier
A1  - Bermisheva, Marina
A1  - Bialkowska, Katarzyna
A1  - Blomqvist, Carl
A1  - Bogdanova, Natalia V.
A1  - Bojesen, Stig E.
A1  - Bolla, Manjeet K.
A1  - Borg, Ake
A1  - Brauch, Hiltrud
A1  - Brenner, Hermann
A1  - Broeks, Annegien
A1  - Burwinkel, Barbara
A1  - Caldés, Trinidad
A1  - Caligo, Maria A.
A1  - Campa, Daniele
A1  - Campbell, Ian
A1  - Canzian, Federico
A1  - Carter, Jonathan
A1  - Carter, Brian D.
A1  - Castelao, Jose E.
A1  - Chang-Claude, Jenny
A1  - Chanock, Stephen J.
A1  - Christiansen, Hans
A1  - Chung, Wendy K.
A1  - Claes, Kathleen B. M.
A1  - Clarke, Christine L.
A1  - Couch, Fergus J.
A1  - Cox, Angela
A1  - Cross, Simon S.
A1  - Czene, Kamila
A1  - Daly, Mary B.
A1  - de la Hoya, Miguel
A1  - Dennis, Joe
A1  - Devilee, Peter
A1  - Diez, Orland
A1  - Dörk, Thilo
A1  - Dunning, Alison M.
A1  - Dwek, Miriam
A1  - Eccles, Diana M.
A1  - Ejlertsen, Bent
A1  - Ellberg, Carolina
A1  - Engel, Christoph
A1  - Eriksson, Mikael
A1  - Fasching, Peter A.
A1  - Fletcher, Olivia
A1  - Flyger, Henrik
A1  - Friedman, Eitan
A1  - Frost, Debra
A1  - Gabrielson, Marike
A1  - Gago-Dominguez, Manuela
A1  - Ganz, Patricia A.
A1  - Gapstur, Susan M.
A1  - Garber, Judy
A1  - García-Closas, Montserrat
A1  - García-Sáenz, José A.
A1  - Gaudet, Mia M.
A1  - Giles, Graham G.
A1  - Glendon, Gord
A1  - Godwin, Andrew K.
A1  - Goldberg, Mark S.
A1  - Goldgar, David E.
A1  - González-Neira, Anna
A1  - Greene, Mark H.
A1  - Gronwald, Jacek
A1  - Guenél, Pascal
A1  - Haimann, Christopher A.
A1  - Hall, Per
A1  - Hamann, Ute
A1  - He, Wei
A1  - Heyworth, Jane
A1  - Hogervorst, Frans B. L.
A1  - Hollestelle, Antoinette
A1  - Hoover, Robert N.
A1  - Hopper, John L.
A1  - Hulick, Peter J.
A1  - Humphreys, Keith
A1  - Imyanitov, Evgeny N.
A1  - Isaacs, Claudine
A1  - Jakimovska, Milena
A1  - Jakubowska, Anna
A1  - James, Paul A.
A1  - Janavicius, Ramunas
A1  - Jankowitz, Rachel C.
A1  - John, Esther M.
A1  - Johnson, Nichola
A1  - Joseph, Vijai
A1  - Karlan, Beth Y.
A1  - Khusnutdinova, Elza
A1  - Kiiski, Johanna I.
A1  - Ko, Yon-Dschun
A1  - Jones, Michael E.
A1  - Konstantopoulou, Irene
A1  - Kristensen, Vessela N.
A1  - Laitman, Yael
A1  - Lambrechts, Diether
A1  - Lazaro, Conxi
A1  - Leslie, Goska
A1  - Lester, Jenny
A1  - Lesueur, Fabienne
A1  - Lindström, Sara
A1  - Long, Jirong
A1  - Loud, Jennifer T.
A1  - Lubiński, Jan
A1  - Makalic, Enes
A1  - Mannermaa, Arto
A1  - Manoochehri, Mehdi
A1  - Margolin, Sara
A1  - Maurer, Tabea
A1  - Mavroudis, Dimitrios
A1  - McGuffog, Lesley
A1  - Meindl, Alfons
A1  - Menon, Usha
A1  - Michailidou, Kyriaki
A1  - Miller, Austin
A1  - Montagna, Marco
A1  - Moreno, Fernando
A1  - Moserle, Lidia
A1  - Mulligan, Anna Marie
A1  - Nathanson, Katherine L.
A1  - Neuhausen, Susan L.
A1  - Nevanlinna, Heli
A1  - Nevelsteen, Ines
A1  - Nielsen, Finn C.
A1  - Nikitina-Zake, Liene
A1  - Nussbaum, Robert L.
A1  - Offit, Kenneth
A1  - Olah, Edith
A1  - Olopade, Olufunmilayo I.
A1  - Olsson, Håkan
A1  - Osorio, Ana
A1  - Papp, Janos
A1  - Park-Simon, Tjoung-Won
A1  - Parsons, Michael T.
A1  - Pedersen, Inge Sokilde
A1  - Peixoto, Ana
A1  - Peterlongo, Paolo
A1  - Pharaoh, Paul D. P.
A1  - Plaseska-Karanfilska, Dijana
A1  - Poppe, Bruce
A1  - Presneau, Nadege
A1  - Radice, Paolo
A1  - Rantala, Johanna
A1  - Rennert, Gad
A1  - Risch, Harvey A.
A1  - Saloustros, Emmanouil
A1  - Sanden, Kristin
A1  - Sawyer, Elinor J.
A1  - Schmidt, Marjanka K.
A1  - Schmutzler, Rita K.
A1  - Sharma, Priyanka
A1  - Shu, Xiao-Ou
A1  - Simard, Jaques
A1  - Singer, Christian F.
A1  - Soucy, Penny
A1  - Southey, Melissa C.
A1  - Spinelli, John J.
A1  - Spurdle, Amanda B.
A1  - Stone, Jennifer
A1  - Swerdlow, Anthony J.
A1  - Tapper, William J.
A1  - Taylor, Jack A.
A1  - Teixeira, Manuel R.
A1  - Terry, Mary Beth
A1  - Teulé, Alex
A1  - Thomassen, Mads
A1  - Thöne, Kathrin
A1  - Thull, Darcy L.
A1  - Tischkowitz, Marc
A1  - Toland, Amanda E.
A1  - Torres, Diana
A1  - Truong, Thérèse
A1  - Tung, Nadine
A1  - Vachon, Celine M.
A1  - van Asperen, Christi J.
A1  - van den Ouweland, Ans M. W.
A1  - van Rensburg, Elizabeth J.
A1  - Vega, Ana
A1  - Viel, Alexandra
A1  - Wang, Qin
A1  - Wappenschmidt, Barbara
A1  - Weitzel, Jeffrey N.
A1  - Wendt, Camilla
A1  - Winqvist, Robert
A1  - Yang, Xiaohong R.
A1  - Yannoukakos, Drakoulis
A1  - Ziogas, Argyrios
A1  - Kraft, Peter
A1  - Antoniou, Antonis C.
A1  - Zheng, Wei
A1  - Easton, Douglas F.
A1  - Milne, Roger L.
A1  - Beesley, Jonathan
A1  - Chenevix-Trench, Georgia
T1  - Genome-wide association and transcriptome studies identify target genes and risk loci for breast cancer
JF  - Nature Communications
N2  - Genome-wide association studies (GWAS) have identified more than 170 breast cancer susceptibility loci. Here we hypothesize that some risk-associated variants might act in non-breast tissues, specifically adipose tissue and immune cells from blood and spleen. Using expression quantitative trait loci (eQTL) reported in these tissues, we identify 26 previously unreported, likely target genes of overall breast cancer risk variants, and 17 for estrogen receptor (ER)-negative breast cancer, several with a known immune function. We determine the directional effect of gene expression on disease risk measured based on single and multiple eQTL. In addition, using a gene-based test of association that considers eQTL from multiple tissues, we identify seven (and four) regions with variants associated with overall (and ER-negative) breast cancer risk, which were not reported in previous GWAS. Further investigation of the function of the implicated genes in breast and immune cells may provide insights into the etiology of breast cancer.
KW  - cancer
KW  - genetics
Y1  - 2019
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-228024
VL  - 10
ER  - 
TY  - JOUR
A1  - Volland, Julian Manuel
A1  - Kaupp, Johannes
A1  - Schmitz, Werner
A1  - Wünsch, Anna Chiara
A1  - Balint, Julia
A1  - Möllmann, Marc
A1  - El-Mesery, Mohamed
A1  - Frackmann, Kyra
A1  - Peter, Leslie
A1  - Hartmann, Stefan
A1  - Kübler, Alexander Christian
A1  - Seher, Axel
T1  - Mass spectrometric metabolic fingerprinting of 2-Deoxy-D-Glucose (2-DG)-induced inhibition of glycolysis and comparative analysis of methionine restriction versus glucose restriction under perfusion culture in the murine L929 model system
JF  - International Journal of Molecular Sciences
N2  - All forms of restriction, from caloric to amino acid to glucose restriction, have been established in recent years as therapeutic options for various diseases, including cancer. However, usually there is no direct comparison between the different restriction forms. Additionally, many cell culture experiments take place under static conditions. In this work, we used a closed perfusion culture in murine L929 cells over a period of 7 days to compare methionine restriction (MetR) and glucose restriction (LowCarb) in the same system and analysed the metabolome by liquid chromatography mass spectrometry (LC-MS). In addition, we analysed the inhibition of glycolysis by 2-deoxy-D-glucose (2-DG) over a period of 72 h. 2-DG induced very fast a low-energy situation by a reduced glycolysis metabolite flow rate resulting in pyruvate, lactate, and ATP depletion. Under perfusion culture, both MetR and LowCarb were established on the metabolic level. Interestingly, over the period of 7 days, the metabolome of MetR and LowCarb showed more similarities than differences. This leads to the conclusion that the conditioned medium, in addition to the different restriction forms, substantially reprogramm the cells on the metabolic level.
KW  - amino acid restriction
KW  - glucose restriction
KW  - mass spectrometry
KW  - low carb
KW  - 2-deoxy-D-glucose
KW  - 2-DG
KW  - methionine
KW  - perfusion culture
KW  - energy restriction
KW  - caloric restriction
Y1  - 2022
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-286007
SN  - 1422-0067
VL  - 23
IS  - 16
ER  - 
TY  - THES
A1  - Peter, Leslie
T1  - In-vitro-Analyse der Glutamin-Restriktion im murinen Modellsystem L929 sowie des Einflusses potentieller caloric restriction mimetics auf das Plattenepithelkarzinom HNSCC
T1  - In vitro analysis of glutamine restriction in the murine model system L929 and the influence of potential caloric restriction mimetics on squamous cell carcinoma HNSCC
N2  - Grundsätzlich sollte in dieser Arbeit der Einfluss der Glutamin-Restriktion als eine Form der Aminosäure-Restriktion auf das Proliferationsverhalten, den Stoffwechsel sowie die Morphologie der murinen Fibroblastenzelllinie L929 untersucht werden. Es sollte dabei auch gezeigt werden, ob sich Indizien für die Induktion eines LEM finden lassen. Weiterhin sollten die Polyamine Spermidin, Spermin, Putrescin und N-Acetylputrescin als CRMs diskutiert und ihr Einfluss auf das Proliferationsverhalten an sieben Zelllinien herausgestellt werden. Der antiproliferative Effekt der Polyamine Spermidin und Spermin auf das Wachstum der untersuchten Zelllinien konnte in dieser Arbeit bestätigt werden, wobei sich Spermin als potenter erwies als Spermidin. Eine durch Spermidin/Spermin induzierte Autophagie konnte in den Western Blots nicht signifikant nachgewiesen werden. Putrescin und N-Acetylputrescin zeigten nur leichte Wirkungen bei hoher Dosis (10 mM). Während Putrescin einen leicht antiproliferativen Effekt hatte, zeigte N-Acetylputrescin eine leicht proliferationssteigernde Wirkung. Die Autophagie-Induktion durch Methionin-Restriktion konnte durch den Nachweis Autophagie-assoziierter Proteine in den durchgeführten Western Blots bestätigt werden. Um regelmäßig von den positiven Effekten der Autophagie zu profitieren, wäre eine pflanzenbasierte Ernährungsweise sinnvoll und gut durchführbar, da Methionin hauptsächlich in tierischen Lebensmitteln und nur geringfügig in pflanzlichen Nahrungsmitteln vorkommt. Ein völliger Verzicht auf Methionin ist nicht empfehlenswert, da die Aminosäure essentiell ist und somit über die Nahrung aufgenommen werden muss. Um das Methionin-Level konstant, aber niedrig zu halten, erscheint eine Bedarfsdeckung über pflanzliche Nahrung als ideal. Die an den Zelllinien L929 und HeLa durchgeführten Proliferationsstudien zeigten, dass die Zellen selbst nach fünftägiger Glutamin- Restriktion geringfügig weiter proliferierten und keinerlei Merkmale des Zelltodes aufwiesen. Die massenspektrometrische Analyse der Modellzelllinie L929, welche über einen Zeitraum von fünf Tagen einer Glutamin-Restriktion ausgesetzt war, zeigte deutliche metabolische Veränderungen bei den über 150 untersuchten Metaboliten, die auf die Induktion eines LEM schließen lassen. Es konnte ein metabolischer Fingerabdruck nach 48 h für die Zelllinie L929 unter Glutamin-Restriktion definiert werden, der zukünftig als Referenz bei der Testung potentieller CRMs herangezogen werden kann.
N2  - The basic aim of this study was to investigate the influence of glutamine restriction as a form of amino acid restriction on the proliferation behavior, metabolism and morphology of the murine fibroblast cell line L929. It should also be shown whether there is evidence for the induction of LEM. Furthermore, the polyamines spermidine, spermine, putrescine and N-acetylputrescine should be discussed as CRMs and their influence on the proliferation behavior of seven cell lines should be highlighted. The antiproliferative effect of the polyamines spermidine and spermine on the growth of the cell lines was confirmed in this study, with spermine proving to be more potent than spermidine. Autophagy induced by spermidine/spermine could not be significantly detected in the Western blots. Putrescine and N-acetylputrescine showed only slight effects at high doses (10 mM). While putrescine had a slight antiproliferative effect, N-acetylputrescine showed a slight proliferation-enhancing effect. The induction of autophagy by methionine restriction was confirmed by the detection of autophagy-associated proteins in the Western blots. In order to benefit regularly from the positive effects of autophagy, a plant-based diet would be sensible and easy to implement, as methionine is mainly found in animal foods and only slightly in plant foods. Completely avoiding methionine is not recommended, as the amino acid is essential and must therefore be obtained from food. In order to keep the methionine level constant but low, it seems ideal to cover the requirement via plant food. The proliferation studies carried out on the cell lines L929 and HeLa showed that the cells continued to proliferate slightly even after five days of glutamine restriction and did not exhibit any signs of cell death. The mass spectrometric analysis of the model cell line L929, which was exposed to glutamine restriction over a period of five days, showed clear metabolic changes in the more than 150 metabolites examined, suggesting the induction of LEM. A metabolic fingerprint could be defined after 48 h for the cell line L929 under glutamine restriction, which can be used as a reference for testing potential CRMs in the future.
KW  - Plattenepithelcarcinom
KW  - Massenspektrometrie
KW  - Glutamin
KW  - Spermidine
KW  - HNSCC
KW  - glutamine
KW  - methionine
KW  - LC-MS
KW  - Glutamin-Restriktion
KW  - Autophagy
KW  - restriction
KW  - cancer
Y1  - 2024
U6  - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:bvb:20-opus-349627
ER  -