Blar i Bergen Open Research Archive på forfatter "Knappskog, Stian"
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Olaparib monotherapy as primary treatment in unselected triple negative breast cancer
Eikesdal, Hans Petter; Yndestad, Synnøve; Elzawahry, Asmaa; Llop-Guevara, Alba; Gilje, Bjørnar; Blix, Egil Støre; Espelid, Helge; Lundgren, Steinar; Geisler, Jürgen; Vagstad, Geirfinn; Venizelos, Andreas; Minsaas, Laura; Leirvaag, Beryl; Gudlaugsson, Einar; Vintermyr, Olav Karsten; Aase, Hildegunn Siv; Aas, Turid; Balmaña, Judith; Serra, Violeta; Janssen, Emiel; Knappskog, Stian; Lønning, Per Eystein (Journal article; Peer reviewed, 2020)Background The antitumor efficacy of PARP inhibitors (PARPi) for breast cancer patients harboring germline BRCA1/2 (gBRCA1/2) mutations is well established. While PARPi monotherapy was ineffective in patients with metastatic ... -
Patterns of genomic evolution in advanced melanoma
Birkeland, Einar Elvbakken; Zhang, Shan; Poduval, Deepak; Geisler, Jürgen; Nakken, Sigve; Vodak, Daniel; Meza, Leonardo Zepeda; Hovig, Eivind; Myklebost, Ola; Knappskog, Stian; Lønning, Per Eystein (Peer reviewed; Journal article, 2018-07-10)Genomic alterations occurring during melanoma progression and the resulting genomic heterogeneity between metastatic deposits remain incompletely understood. Analyzing 86 metastatic melanoma deposits from 53 patients with ... -
Performance comparison of three BRAF V600E detection methods in malignant melanoma and colorectal cancer specimen
Løes, Inger Marie; Immervoll, Heike; Angelsen, Jon-Helge; Horn, Arild; Geisler, Jürgen; Busch, Christian; Lønning, Per Eystein; Knappskog, Stian (Peer reviewed; Journal article, 2015-02)Personalized cancer care requires reliable biomarkers. While the BRAF V600E mutation is implemented in the clinic, no method for its detection has so far been established as reference. We aimed to perform a comprehensive ... -
A phase I prospective, non-randomized trial of autologous dendritic cell-based cryoimmunotherapy in patients with metastatic castration-resistant prostate cancer
Thomsen, Liv Cecilie Vestrheim; Honore, Alfred; Reisæter, Lars Anders Rokne; Almås, Bjarte; Børretzen, Astrid; Helle, Svein Inge; Førde, Kristina; Kristoffersen, Einar Klæboe; Kaada, Silje Katrine Helland; Melve, Guro Kristin; Haslerud, Torjan Magne; Biermann, Martin; Bigalke, Iris; Kvalheim, Gunnar; Azeem, Waqas; Olsen, Jan Roger; Gabriel, Benjamin; Knappskog, Stian; Halvorsen, Ole Johan; Akslen, Lars Andreas; Bahn, Duke; Pantel, Klaus; Riethdorf, Sabine; Ragde, Haakon; Gjertsen, Bjørn Tore; Øyan, Anne Margrete; Kalland, Karl Henning; Beisland, Christian (Journal article; Peer reviewed, 2023)Metastatic castration-resistant prostate cancer (mCRPC) is an immunologically cold disease with dismal outcomes. Cryoablation destroys cancer tissue, releases tumor-associated antigens and creates a pro-inflammatory ... -
Polymorphisms in the TP53-MDM2-MDM4-axis in patients with rheumatoid arthritis
Gansmo, Liv Beathe; Lie, Benedicte Alexandra; Mæhlen, Marthe Thoresen; Vatten, Lars Johan; Romundstad, Pål Richard; Hveem, Kristian; Lønning, Per Eystein; Knappskog, Stian (Journal article; Peer reviewed, 2021)Background In addition to being a tumour suppressor, TP53 is a suppressor of inflammation, and dysfunction of this gene has been related to autoimmune diseases. Patients with autoimmunity, such as rheumatoid arthritis ... -
Population distribution and ancestry of the cancer protective MDM2 SNP285 (rs117039649)
Knappskog, Stian; Gansmo, Liv Beathe; Dibirova, Khadizha; Metspalu, Andres; Cybulski, Cezary; Peterlongo, Paolo; Aaltonen, Lauri; Vatten, Lars Johan; Romundstad, Pål Richard; Hveem, Kristian; Devilee, Peter; Evans, Gareth D; Lin, Dongxin; Van Camp, Guy; Manolopoulos, Vangelis G; Osorio, Ana; Milani, Lili; Ozcelik, Tayfun; Zalloua, Pierre; Mouzaya, Francis; Bliznetz, Elena; Balanovska, Elena; Pocheshkova, Elvira; Kucinskas, Vaidutis; Atramentova, Lubov; Nymadawa, Pagbajabyn; Titov, Konstantin; Lavryashina, Maria; Yusupov, Yuldash; Bogdanova, Natalia; Koshel, Sergey; Zamora, Jorge; Wedge, David C.; Charlesworth, Deborah; Dörk, Thilo; Balanovsky, Oleg; Lønning, Per Eystein (Peer reviewed; Journal article, 2014-04-18)The MDM2 promoter SNP285C is located on the SNP309G allele. While SNP309G enhances Sp1 transcription factor binding and MDM2 transcription, SNP285C antagonizes Sp1 binding and reduces the risk of breast-, ovary- and ... -
Predictive and Prognostic Impact of TP53 Mutations and MDM2 Promoter Genotype in Primary Breast Cancer Patients Treated with Epirubicin or Paclitaxel
Chrisanthar, Ranjan; Knappskog, Stian; Løkkevik, Erik; Anker, Gun Birgitta; Østenstad, Bjørn; Lundgren, Steinar; Risberg, Terje; Mjaaland, Ingvil; Skjønsberg, Gudbrand; Aas, Turid; Schlichting, Ellen; Fjösne, Hans E.; Nysted, Arne; Lillehaug, Johan; Lønning, Per Eystein (Peer reviewed; Journal article, 2011-04-27)Background: TP53 mutations have been associated with resistance to anthracyclines but not to taxanes in breast cancer patients. The MDM2 promoter single nucleotide polymorphism (SNP) T309G increases MDM2 activity and may ... -
Prenatal BRCA1 epimutations contribute significantly to triple-negative breast cancer development
Nikolaienko, Oleksii; Eikesdal, Hans Petter; Berge, Elisabet Ognedal; Gilje, Bjørnar; Lundgren, Steinar; Blix, Egil Støre; Espelid, Helge; Geisler, Jürgen; Geisler, Stephanie; Janssen, Emiel; Yndestad, Synnøve; Minsaas, Laura; Leirvaag, Beryl; Lillestøl, Reidun Kristine; Knappskog, Stian; Lønning, Per Eystein (Journal article; Peer reviewed, 2023)Background Normal cell BRCA1 epimutations have been associated with increased risk of triple-negative breast cancer (TNBC). However, the fraction of TNBCs that may have BRCA1 epimutations as their underlying cause is ... -
Prevalence of the CHEK2 R95* germline mutation
Knappskog, Stian; Leirvaag, Beryl; Gansmo, Liv Beate; Romundstad, Pål; Hveem, Kristian; Vatten, Lars; Lønning, Per Eystein (Peer reviewed; Journal article, 2016-09-27)Background: While germline CHEK2 mutations have been linked to a moderately elevated cancer risk, to date, a limited number of such mutations have been identified. Recently, we reported a germline nonsense mutation (C283T; ... -
ramr: an R/Bioconductor package for detection of rare aberrantly methylated regions
Nikolaienko, Oleksii; Lønning, Per Eystein; Knappskog, Stian (Journal article; Peer reviewed, 2022)Motivation: With recent advances in the field of epigenetics, the focus is widening from large and frequent disease- or phenotype-related methylation signatures to rare alterations transmitted mitotically or transgenerationally ... -
Retrospective evaluation of whole exome and genome mutation calls in 746 cancer samples
Bailey, Matthew H.; Meyerson, William U.; Dursi, L. Jonathan; Wang, Liang-Bo; Dong, Guanlan; Liang, Wen-Wei; Weerasinghe, Amila; Li, Shantao; Li, Yize; Kelso, Sean; Aure, Miriam Ragle; Børresen-Dale, Anne-Lise; Langerød, Anita; Baumhoer, Daniel; Bjerkehagen, Bodil; Garred, Øystein; Lingjærde, Ole Christian; Sauer, Torill; Zaikova, Olga; Myklebost, Ola; Knappskog, Stian; Vazquez, Miguel; Akbani, Rehan; Anur, Pavana; Buchanan, Alex; Chiotti, Kami; Covington, Kyle; Creason, Allison; Niu, Beifang; Bieg, Matthias; Boutros, Paul C.; Buchhalter, Ivo; Butler, Adam P.; Chen, Ken; Chong, Zechen; Drechsel, Oliver; Aaltonen, Lauri; Abascal, Federico; Abeshouse, Adam; Aburatani, H; Adams, David J.; Van Loo, Peter; Saksena, Gordon; Ellrott, Kyle; Wendl, Michael C.; Wheeler, David A.; Getz, Gad; Simpson, Jared T.; Gerstein, Mark B.; Ding, Li (Journal article; Peer reviewed, 2020)The Cancer Genome Atlas (TCGA) and International Cancer Genome Consortium (ICGC) curated consensus somatic mutation calls using whole exome sequencing (WES) and whole genome sequencing (WGS), respectively. Here, as part ... -
Sex differences in oncogenic mutational processes
Li, Constance H.; Prokopec, Stephenie D.; Sun, Ren X.; Yousif, Fouad; Schmitz, Nathaniel; Boutros, Paul C.; Aure, Miriam Ragle; Børresen-Dale, Anne-Lise; Langerød, Anita; Wright, Derek W.; Baumhoer, Daniel; Bjerkehagen, Bodil; Garred, Øystein; Lingjærde, Ole Christian; Sauer, Torill; Zaikova, Olga; Myklebost, Ola; Knappskog, Stian; Vazquez, Miguel; Van Loo, Peter (Journal article; Peer reviewed, 2020)Sex differences have been observed in multiple facets of cancer epidemiology, treatment and biology, and in most cancers outside the sex organs. Efforts to link these clinical differences to specific molecular features ... -
Studentaktivering ved posterpresentasjon av forskningsprosjekt
Knappskog, Stian (UPED-skrift, Working paper, 2018) -
TP53 status predicts long-term survival in locally advanced breast cancer after primary chemotherapy
Eikesdal, Hans Petter; Knappskog, Stian; Aas, Turid; Lønning, Per Eystein (Peer reviewed; Journal article, 2014-10)Background: Before the advent of neoadjuvant chemotherapy, radiotherapy and surgery alone were associated with a high risk of uncontrolled locoregional relapses in locally advanced breast cancer (LABC). Material and methods: ...