Now showing 1 - 10 of 26
  • 2017Journal Article Research Paper
    [["dc.bibliographiccitation.artnumber","1140"],["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","International Journal of Molecular Sciences"],["dc.bibliographiccitation.volume","18"],["dc.contributor.affiliation","Jo, Peter; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, jo.peter@chirurgie-goettingen.de"],["dc.contributor.affiliation","Azizian, Azadeh; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, azadeh.azizian@med.uni-goettingen.de"],["dc.contributor.affiliation","Salendo, Junius; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, juniussalendo@gmail.com"],["dc.contributor.affiliation","Kramer, Frank; \t\t \r\n\t\t Department of Medical Statistics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, frank.kramer@med.uni-goettingen.de"],["dc.contributor.affiliation","Bernhardt, Markus; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, markus.bernhardt@med.uni-goettingen.de"],["dc.contributor.affiliation","Wolff, Hendrik; \t\t \r\n\t\t Department of Radiology, Nuclear Medicine and Radiotherapy, Radiology Munich, Burgstr. 7, 80333 Munich, Germany, drhawolff@googlemail.com"],["dc.contributor.affiliation","Gruber, Jens; \t\t \r\n\t\t German Primate Center, Medical RNA Biology, Kellnerweg 4, 37075 Goettingen, Germany, jgruber@dpz.eu"],["dc.contributor.affiliation","Grade, Marian; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, marian.grade@med.uni-goettingen.de"],["dc.contributor.affiliation","Beißbarth, Tim; \t\t \r\n\t\t Department of Medical Statistics, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, tim.beissbarth@med.uni-goettingen.de"],["dc.contributor.affiliation","Ghadimi, B.; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, mghadim@uni-goettingen.de"],["dc.contributor.affiliation","Gaedcke, Jochen; \t\t \r\n\t\t Department of General-, Visceral-, and Pediatric Surgery, University Medical Center Goettingen, Robert-Koch-Str. 40, 37075 Goettingen, Germany, jochen.gaedcke@med.uni-goettingen.de"],["dc.contributor.author","Jo, Peter"],["dc.contributor.author","Azizian, Azadeh"],["dc.contributor.author","Salendo, Junius"],["dc.contributor.author","Kramer, Frank"],["dc.contributor.author","Bernhardt, Markus"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Gruber, Jens"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Gaedcke, Jochen"],["dc.date.accessioned","2018-11-07T10:22:50Z"],["dc.date.available","2018-11-07T10:22:50Z"],["dc.date.issued","2017"],["dc.date.updated","2022-09-06T05:14:56Z"],["dc.description.abstract","Since the response to chemoradiotherapy in patients with locally advanced rectal cancer is heterogeneous, valid biomarkers are needed to monitor tumor response. Circulating microRNAs are promising candidates, however analyses of circulating microRNAs in rectal cancer are still rare. 111 patients with rectal cancer and 46 age-matched normal controls were enrolled. The expression levels of 30 microRNAs were analyzed in 17 pre-treatment patients' plasma samples. Differentially regulated microRNAs were validated in 94 independent patients. For 52 of the 94 patients a paired comparison between pre-treatment and post-treatment samples was performed. miR-17, miR-18b, miR-20a, miR-31, and miR-193a_3p, were significantly downregulated in pre-treatment plasma samples of patients with rectal cancer (p < 0.05). miR-29c, miR-30c, and miR-195 showed a trend of differential regulation. After validation, miR-31 and miR-30c were significantly deregulated by a decrease of expression. In 52 patients expression analyses of the 8 microRNAs in matched pre-treatment and post-treatment samples showed a significant decrease for all microRNAs (p < 0.05) after treatment. Expression levels of miR-31 and miR-30c could serve as valid biomarkers if validated in a prospective study. Plasma microRNA expression levels do not necessarily represent miRNA expression levels in tumor tissue. Also, expression levels of microRNAs change during multimodal therapy."],["dc.description.sponsorship","DFG (German Research Foundation)"],["dc.identifier.doi","10.3390/ijms18061140"],["dc.identifier.isi","000404581500040"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14793"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/42349"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","PUB_WoS_Import"],["dc.publisher","Mdpi Ag"],["dc.relation.eissn","1422-0067"],["dc.relation.issn","1422-0067"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Changes of Microrna Levels in Plasma of Patients with Rectal Cancer during Chemoradiotherapy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2011Review
    [["dc.bibliographiccitation.firstpage","591"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Langenbeck s Archives of Surgery"],["dc.bibliographiccitation.lastpage","606"],["dc.bibliographiccitation.volume","396"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Quintel, Michael"],["dc.contributor.author","Ghadimi, B. Michael"],["dc.date.accessioned","2018-11-07T08:55:38Z"],["dc.date.available","2018-11-07T08:55:38Z"],["dc.date.issued","2011"],["dc.description.abstract","The outcome of patients who are scheduled for gastrointestinal surgery is influenced by various factors, the most important being the age and comorbidities of the patient, the complexity of the surgical procedure and the management of postoperative recovery. To improve patient outcome, close cooperation between surgeons and anaesthesiologists (joint risk assessment) is critical. This cooperation has become increasingly important because more and more patients are being referred to surgery at an advanced age and with multiple comorbidities and because surgical procedures and multimodal treatment modalities are becoming more and more complex. The aim of this review is to provide clinicians with practical recommendations for day-to-day decision-making from a joint surgical and anaesthesiological point of view. The discussion centres on gastrointestinal surgery specifically."],["dc.identifier.doi","10.1007/s00423-011-0782-y"],["dc.identifier.isi","000290985700002"],["dc.identifier.pmid","21448724"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/6624"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22953"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1435-2443"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Standard perioperative management in gastrointestinal surgery"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2014Journal Article
    [["dc.bibliographiccitation.artnumber","e1411"],["dc.bibliographiccitation.journal","Cell Death and Disease"],["dc.bibliographiccitation.volume","5"],["dc.contributor.author","Landmann, H."],["dc.contributor.author","Proia, D. A."],["dc.contributor.author","He, S."],["dc.contributor.author","Ogden, F. L."],["dc.contributor.author","Kramer, Franz-Josef"],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Gaedcke, Jochen"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Moll, U."],["dc.contributor.author","Dobbelstein, Matthias"],["dc.date.accessioned","2018-11-07T09:35:41Z"],["dc.date.available","2018-11-07T09:35:41Z"],["dc.date.issued","2014"],["dc.description.abstract","HSP90 inhibition represents a promising route to cancer therapy, taking advantage of cancer cell-inherent proteotoxic stress. The HSP90-inhibitor ganetespib showed benefit in advanced clinical trials. This raises the need to identify the molecular determinants of treatment response. We tested the efficacy of ganetespib on a series of colorectal cancer (CRC)-derived cell lines and correlated their sensitivities with comprehensive gene expression analysis. Notably, the drug concentration required for 50% growth inhibition (IC50) varied up to 70-fold (from 36 to 2500 nM) between different cell lines. Correlating cell line-specific IC(50)s with the corresponding gene expression patterns revealed a strong association between ganetespib resistance (IC50 > 500 nM) and high expression of the UDP glucuronosyltransferase 1A (UGT1A) gene cluster. Moreover, CRC tumor samples showed a comparable distribution of UGT1A expression levels. The members of the UGT1A gene family are known as drug-conjugating liver enzymes involved in drug excretion, but their function in tumor cells is hardly understood. Chemically unrelated HSP90 inhibitors, for example, 17-N-allylamino-17-demethoxygeldanamycin (17-AAG), did not show correlation of drug sensitivities with UGT1A levels, whereas the ganetespib-related compound NVP-AUY922 did. When the most ganetespib-resistant cell line, HT29, was treated with ganetespib, the levels of HSP90 clients were unaffected. However, HT29 cells became sensitized to the drug, and HSP90 client proteins were destabilized by ganetespib upon siRNA-mediated UGT1A knockdown. Conversely, the most ganetespib-sensitive cell lines HCT116 and SW480 became more tolerant toward ganetespib upon UGT1A overexpression. Mechanistically, ganetespib was rapidly glucuronidated and excreted in resistant but not in sensitive CRC lines. We conclude that CRC cell-expressed UGT1A inactivates ganetespib and other resorcinolic Hsp90 inhibitors by glucuronidation, which renders the drugs unable to inhibit Hsp90 and thereby abrogates their biological activity. UGT1A levels in tumor tissues may be a suitable predictive biomarker to stratify CRC patients for ganetespib treatment."],["dc.description.sponsorship","Open-Access Publikationsfonds 2014"],["dc.identifier.doi","10.1038/cddis.2014.378"],["dc.identifier.isi","000343162000012"],["dc.identifier.pmid","25210794"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/10891"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/32445"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.notes.submitter","Najko"],["dc.relation.issn","2041-4889"],["dc.rights","CC BY-NC-ND 3.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/3.0"],["dc.title","UDP glucuronosyltransferase 1A expression levels determine the response of colorectal cancer cells to the heat shock protein 90 inhibitor ganetespib"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2020Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","8318"],["dc.bibliographiccitation.issue","21"],["dc.bibliographiccitation.journal","International Journal of Molecular Sciences"],["dc.bibliographiccitation.volume","21"],["dc.contributor.affiliation","Mewes, Caspar; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, caspar.mewes@med.uni-goettingen.de"],["dc.contributor.affiliation","Alexander, Tessa; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, tessa.alexander@med.uni-goettingen.de"],["dc.contributor.affiliation","Büttner, Benedikt; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, benedikt.buettner@med.uni-goettingen.de"],["dc.contributor.affiliation","Hinz, José; \t\t \r\n\t\t Department of Anesthesiology and Intensive Care Medicine, Klinikum Region Hannover, D-30459 Hannover, Germany, jose.hinz@krh.eu"],["dc.contributor.affiliation","Alpert, Ayelet; \t\t \r\n\t\t Department of Immunology, Rapport Faculty of Medicine, Technion-Israeli Institute of Technology, Haifa 31096, Israel, ayelethappy@gmail.com"],["dc.contributor.affiliation","Popov, Aron-F.; \t\t \r\n\t\t Department of Thoracic and Cardiovascular Surgery, University Medical Center, Eberhard Karls University, D-72076 Tuebingen, Germany, aronf.popov@gmail.com"],["dc.contributor.affiliation","Ghadimi, Michael; \t\t \r\n\t\t Department of General and Visceral Surgery, University Medical Center, Georg August University, D-37075 Goettingen, Germany, mghadim@uni-goettingen.de"],["dc.contributor.affiliation","Beißbarth, Tim; \t\t \r\n\t\t Institute of Medical Bioinformatics, University Medical Center, Georg August University, D-37077 Goettingen, Germany, tim.beissbarth@ams.med.uni-goettingen.de"],["dc.contributor.affiliation","Tzvetkov, Mladen; \t\t \r\n\t\t Department of Pharmacology, University Medical Center, Ernst-Moritz-Arndt-University, D-17487 Greifswald, Germany, mladen.tzvetkov@uni-greifswald.de"],["dc.contributor.affiliation","Grade, Marian; \t\t \r\n\t\t Department of General and Visceral Surgery, University Medical Center, Georg August University, D-37075 Goettingen, Germany, marian.grade@med.uni-goettingen.de"],["dc.contributor.affiliation","Quintel, Michael; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, mquintel@med.uni-goettingen.de"],["dc.contributor.affiliation","Bergmann, Ingo; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, ingo.bergmann@med.uni-goettingen.de"],["dc.contributor.affiliation","Mansur, Ashham; \t\t \r\n\t\t Department of Anesthesiology, University Medical Center, Georg August University, D-37075 Goettingen, Germany, ashham.mansur@med.uni-goettingen.de\t\t \r\n\t\t Department of Anesthesiology, Asklepios Hospitals Schildautal, D-38723 Seesen, Germany, ashham.mansur@med.uni-goettingen.de"],["dc.contributor.author","Mewes, Caspar"],["dc.contributor.author","Alexander, Tessa"],["dc.contributor.author","Büttner, Benedikt"],["dc.contributor.author","Hinz, José"],["dc.contributor.author","Alpert, Ayelet"],["dc.contributor.author","Popov, Aron-F."],["dc.contributor.author","Ghadimi, Michael"],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Tzvetkov, Mladen"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Quintel, Michael"],["dc.contributor.author","Bergmann, Ingo"],["dc.contributor.author","Mansur, Ashham"],["dc.date.accessioned","2021-04-14T08:31:06Z"],["dc.date.available","2021-04-14T08:31:06Z"],["dc.date.issued","2020"],["dc.date.updated","2022-09-06T17:44:59Z"],["dc.description.sponsorship","Volkswagen Foundation"],["dc.identifier.doi","10.3390/ijms21218318"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17650"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/83484"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.notes.intern","Merged from goescholar"],["dc.relation.eissn","1422-0067"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","TIM-3 Genetic Variants Are Associated with Altered Clinical Outcome and Susceptibility to Gram-Positive Infections in Patients with Sepsis"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2019Journal Article
    [["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Clinical Epigenetics"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Sen, Madhobi"],["dc.contributor.author","Wang, Xin"],["dc.contributor.author","Hamdan, Feda H."],["dc.contributor.author","Rapp, Jacobe"],["dc.contributor.author","Eggert, Jessica"],["dc.contributor.author","Kosinsky, Robyn Laura"],["dc.contributor.author","Wegwitz, Florian"],["dc.contributor.author","Kutschat, Ana Patricia"],["dc.contributor.author","Younesi, Fereshteh S."],["dc.contributor.author","Gaedcke, Jochen"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Hessmann, Elisabeth"],["dc.contributor.author","Papantonis, Argyris"],["dc.contributor.author","StrÓ§bel, Philipp"],["dc.contributor.author","Johnsen, Steven A."],["dc.date.accessioned","2020-12-10T18:39:06Z"],["dc.date.available","2020-12-10T18:39:06Z"],["dc.date.issued","2019"],["dc.identifier.doi","10.1186/s13148-019-0690-5"],["dc.identifier.eissn","1868-7083"],["dc.identifier.issn","1868-7075"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/16438"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/77543"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.notes.intern","Merged from goescholar"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","ARID1A facilitates KRAS signaling-regulated enhancer activity in an AP1-dependent manner in colorectal cancer cells"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2010Journal Article
    [["dc.bibliographiccitation.firstpage","451"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","Langenbeck s Archives of Surgery"],["dc.bibliographiccitation.lastpage","458"],["dc.bibliographiccitation.volume","395"],["dc.contributor.author","Gaedcke, Jochen"],["dc.contributor.author","Gunawan, Bastian"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Szoeke, R."],["dc.contributor.author","Liersch, Thorsten"],["dc.contributor.author","Becker, H."],["dc.contributor.author","Ghadimi, B. Michael"],["dc.date.accessioned","2018-11-07T08:44:42Z"],["dc.date.available","2018-11-07T08:44:42Z"],["dc.date.issued","2010"],["dc.description.abstract","The prognosis of patients with pancreatic cancer remains poor, even after potentially curative R0 resection. This discrepancy may be due to the histopathological misclassification of R1 cases as curative resections (R0) in the past. To test this hypothesis, color coding of all resection margins and organ surfaces as part of a standardized histopathological workup was implemented and prospectively tested on 100 pancreatic head specimens. Thirty-five patients were excluded from the analysis owing to the pathohistological diagnosis; only pancreatic ductal adenocarcinoma, distal bile duct adenocarcinoma, and periampullary adenocarcinoma were included. Applying the International Union Against Cancer criteria, 32 cancer resections were classified R0 (49.2%), while 33 cases turned out to be R1 resections (50.8%). The mesopancreas was infiltrated in 22 of the 33 R1 resection specimens (66.6%). It proved to be the only site of tumor infiltration in 17 specimens (51.5%). Applying the Royal College of Pathologists' criteria, 46 resections were classified R1 (70.8%). As expected, the mesopancreas again was the most frequent site of noncurative resection (n = 27; 58.7%). Using the intensified histopathological workup for pancreatic head cancer specimens resulted in an increased rate of R1 resections and the mesopancreas represents the primary site for positive resection margins. Such results are of relevance for patients' stratification in clinical trials."],["dc.identifier.doi","10.1007/s00423-009-0494-8"],["dc.identifier.isi","000276261200023"],["dc.identifier.pmid","19418067"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?goescholar/4177"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/20262"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1435-2443"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","The mesopancreas is the primary site for R1 resection in pancreatic head cancer: relevance for clinical trials"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2010Journal Article
    [["dc.bibliographiccitation.artnumber","36"],["dc.bibliographiccitation.journal","BMC Medical Genomics"],["dc.bibliographiccitation.volume","3"],["dc.contributor.author","Opitz, Lennart"],["dc.contributor.author","Salinas-Riester, Gabriela"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Jung, Klaus"],["dc.contributor.author","Jo, Peter"],["dc.contributor.author","Emons, Georg"],["dc.contributor.author","Ghadimi, Michael B."],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Gaedcke, Jochen"],["dc.date.accessioned","2018-11-07T08:40:26Z"],["dc.date.available","2018-11-07T08:40:26Z"],["dc.date.issued","2010"],["dc.description.abstract","Background: Gene expression profiling is a highly sensitive technique which is used for profiling tumor samples for medical prognosis. RNA quality and degradation influence the analysis results of gene expression profiles. The impact of this influence on the profiles and its medical impact is not fully understood. As patient samples are very valuable for clinical studies, it is necessary to establish criteria for the RNA quality to be able to use these samples in later analysis. Methods: To investigate the effects of RNA integrity on gene expression profiling, whole genome expression arrays were used. We used tumor biopsies from patients diagnosed with locally advanced rectal cancer. To simulate degradation, the isolated total RNA of all patients was subjected to heat-induced degradation in a time-dependent manner. Expression profiling was then performed and data were analyzed bioinformatically to assess the differences. Results: The differences introduced by RNA degradation were largely outweighed by the biological differences between the patients. Only a relatively small number of probes (275 out of 41,000) show a significant effect due to degradation. The genes that show the strongest effect due to RNA degradation were, especially, those with short mRNAs and probe positions near the 5' end. Conclusions: Degraded RNA from tumor samples (RIN > 5) can still be used to perform gene expression analysis. A much higher biological variance between patients is observed compared to the effect that is imposed by degradation of RNA. Nevertheless there are genes, very short ones and those with the probe binding side close to the 5' end that should be excluded from gene expression analysis when working with degraded RNA. These results are limited to the Agilent 44 k microarray platform and should be carefully interpreted when transferring to other settings."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [KFO 179]; BMBF [01GS0890]; BreastSys"],["dc.identifier.doi","10.1186/1755-8794-3-36"],["dc.identifier.isi","000283179600001"],["dc.identifier.pmid","20696062"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/5664"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/19230"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Biomed Central Ltd"],["dc.relation.issn","1755-8794"],["dc.rights","CC BY 2.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/2.0"],["dc.title","Impact of RNA degradation on gene expression profiling"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2016Journal Article
    [["dc.bibliographiccitation.artnumber","568"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","International Journal of Molecular Sciences"],["dc.bibliographiccitation.volume","17"],["dc.contributor.author","Azizian, Azadeh"],["dc.contributor.author","Epping, Ingo"],["dc.contributor.author","Kramer, Frank"],["dc.contributor.author","Jo, Peter"],["dc.contributor.author","Bernhardt, Markus"],["dc.contributor.author","Kitz, Julia"],["dc.contributor.author","Salinas, Gabriela"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Beissbarath, Tim"],["dc.contributor.author","Ghadimi, B. Michael"],["dc.contributor.author","Gaedcke, Jochen"],["dc.date.accessioned","2018-11-07T10:16:01Z"],["dc.date.available","2018-11-07T10:16:01Z"],["dc.date.issued","2016"],["dc.description.abstract","Background: Patients with locally advanced rectal cancer are treated with preoperative chemoradiotherapy followed by surgical resection. Despite similar clinical parameters (uT2-3, uN+) and standard therapy, patients' prognoses differ widely. A possible prediction of prognosis through microRNAs as biomarkers out of treatment-naive biopsies would allow individualized therapy options. Methods: Microarray analysis of 45 microdissected preoperative biopsies from patients with rectal cancer was performed to identify potential microRNAs to predict overall survival, disease-free survival, cancer-specific survival, distant-metastasis-free survival, tumor regression grade, or nodal stage. Quantitative real-time polymerase chain reaction (qPCR) was performed on an independent set of 147 rectal cancer patients to validate relevant miRNAs. Results: In the microarray screen, 14 microRNAs were significantly correlated to overall survival. Five microRNAs were included from previous work. Finally, 19 miRNAs were evaluated by qPCR. miR-515-5p, miR-573, miR-579 and miR-802 demonstrated significant correlation with overall survival and cancer-specific survival (p<0.05). miR-573 was also significantly correlated with the tumor regression grade after preoperative chemoradiotherapy. miR-133b showed a significant correlation with distant-metastasis-free survival. miR-146b expression levels showed a significant correlation with nodal stage. Conclusion: Specific microRNAs can be used as biomarkers to predict prognosis of patients with rectal cancer and possibly stratify patients' therapy if validated in a prospective study."],["dc.identifier.doi","10.3390/ijms17040568"],["dc.identifier.isi","000374585300147"],["dc.identifier.pmid","27092493"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/13222"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/40949"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Mdpi Ag"],["dc.relation.issn","1422-0067"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Prognostic Value of MicroRNAs in Preoperative Treated Rectal Cancer"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2014Review
    [["dc.bibliographiccitation.firstpage","1986"],["dc.bibliographiccitation.issue","4"],["dc.bibliographiccitation.journal","CANCERS"],["dc.bibliographiccitation.lastpage","2011"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Spitzner, Melanie"],["dc.contributor.author","Ebner, Reinhard"],["dc.contributor.author","Wolff, Hendrik Andreas"],["dc.contributor.author","Ghadimi, B. Michael"],["dc.contributor.author","Wienands, Juergen"],["dc.contributor.author","Grade, Marian"],["dc.date.accessioned","2018-11-07T09:32:22Z"],["dc.date.available","2018-11-07T09:32:22Z"],["dc.date.issued","2014"],["dc.description.abstract","Chemoradiotherapy (CRT) represents a standard treatment for many human cancers, frequently combined with radical surgical resection. However, a considerable percentage of primary cancers are at least partially resistant to CRT, which represents a substantial clinical problem, because it exposes cancer patients to the potential side effects of both irradiation and chemotherapy. It is therefore exceedingly important to determine the molecular characteristics underlying CRT-resistance and to identify novel molecular targets that can be manipulated to re-sensitize resistant tumors to CRT. In this review, we highlight much of the recent evidence suggesting that the signal transducer and activator of transcription 3 (STAT3) plays a prominent role in mediating CRT-resistance, and we outline why inhibition of STAT3 holds great promise for future multimodal treatment concepts in oncology."],["dc.description.sponsorship","Deutsche Forschungsgemeinschaft [Klinische Forschergruppe 179]"],["dc.identifier.doi","10.3390/cancers6041986"],["dc.identifier.isi","000209950800006"],["dc.identifier.pmid","25268165"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12173"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31743"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Mdpi Ag"],["dc.relation.issn","2072-6694"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","STAT3: A Novel Molecular Mediator of Resistance to Chemoradiotherapy"],["dc.type","review"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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  • 2021Journal Article Research Paper
    [["dc.bibliographiccitation.firstpage","5302"],["dc.bibliographiccitation.issue","22"],["dc.bibliographiccitation.journal","Journal of Clinical Medicine"],["dc.bibliographiccitation.volume","10"],["dc.contributor.author","Mewes, Caspar"],["dc.contributor.author","Alexander, Tessa"],["dc.contributor.author","Büttner, Benedikt"],["dc.contributor.author","Hinz, José"],["dc.contributor.author","Alpert, Ayelet"],["dc.contributor.author","Popov, Aron-F."],["dc.contributor.author","Beißbarth, Tim"],["dc.contributor.author","Tzvetkov, Mladen"],["dc.contributor.author","Grade, Marian"],["dc.contributor.author","Quintel, Michael"],["dc.contributor.author","Mansur, Ashham"],["dc.contributor.author","Bergmann, Ingo"],["dc.date.accessioned","2021-12-01T09:22:58Z"],["dc.date.available","2021-12-01T09:22:58Z"],["dc.date.issued","2021"],["dc.description.abstract","(1) Background: Sepsis is a leading cause of death and a global public health problem. Accordingly, deciphering the underlying molecular mechanisms of this disease and the determinants of its morbidity and mortality is pivotal. This study examined the effect of the rs951818 SNP of the negative costimulatory lymphocyte-activation gene 3 (LAG-3) on sepsis mortality and disease severity. (2) Methods: 707 consecutive patients with sepsis were prospectively enrolled into the present study from three surgical ICUs at University Medical Center Goettingen. Both 28- and 90-day mortality were analyzed as the primary outcome, while parameters of disease severity served as secondary endpoints. (3) Results: In the Kaplan–Meier analysis LAG-3 rs951818 AA-homozygote patients showed a significantly lower 28-day mortality (17.3%) compared to carriers of the C-allele (23.7%, p = 0.0476). In addition, these patients more often received invasive mechanical ventilation (96%) during the course of disease than C-allele carriers (92%, p = 0.0466). (4) Conclusions: Genetic profiling of LAG-3 genetic variants alone or in combination with other genetic biomarkers may represent a promising approach for risk stratification of patients with sepsis. Patient-individual therapeutic targeting of immune checkpoints, such as LAG-3, may be a future component of sepsis therapy. Further detailed investigations in clinically relevant sepsis models are necessary."],["dc.description.abstract","(1) Background: Sepsis is a leading cause of death and a global public health problem. Accordingly, deciphering the underlying molecular mechanisms of this disease and the determinants of its morbidity and mortality is pivotal. This study examined the effect of the rs951818 SNP of the negative costimulatory lymphocyte-activation gene 3 (LAG-3) on sepsis mortality and disease severity. (2) Methods: 707 consecutive patients with sepsis were prospectively enrolled into the present study from three surgical ICUs at University Medical Center Goettingen. Both 28- and 90-day mortality were analyzed as the primary outcome, while parameters of disease severity served as secondary endpoints. (3) Results: In the Kaplan–Meier analysis LAG-3 rs951818 AA-homozygote patients showed a significantly lower 28-day mortality (17.3%) compared to carriers of the C-allele (23.7%, p = 0.0476). In addition, these patients more often received invasive mechanical ventilation (96%) during the course of disease than C-allele carriers (92%, p = 0.0466). (4) Conclusions: Genetic profiling of LAG-3 genetic variants alone or in combination with other genetic biomarkers may represent a promising approach for risk stratification of patients with sepsis. Patient-individual therapeutic targeting of immune checkpoints, such as LAG-3, may be a future component of sepsis therapy. Further detailed investigations in clinically relevant sepsis models are necessary."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3390/jcm10225302"],["dc.identifier.pii","jcm10225302"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/94527"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-478"],["dc.relation.eissn","2077-0383"],["dc.relation.orgunit","Klinik für Anästhesiologie"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0/"],["dc.title","Effect of the Lymphocyte Activation Gene 3 Polymorphism rs951818 on Mortality and Disease Progression in Patients with Sepsis—A Prospective Genetic Association Study"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]
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