SwePub
Sök i SwePub databas

  Utökad sökning

Träfflista för sökning "WFRF:(Borg Åke) srt2:(2015-2019)"

Sökning: WFRF:(Borg Åke) > (2015-2019)

  • Resultat 1-10 av 70
  • [1]234567Nästa
Sortera/gruppera träfflistan
   
NumreringReferensOmslagsbildHitta
1.
  • Catucci, Irene, et al. (författare)
  • Individuals with FANCM biallelic mutations do not develop Fanconi anemia, but show risk for breast cancer, chemotherapy toxicity and may display chromosome fragility
  • 2018
  • Ingår i: Genetics in Medicine. - Lippincott Williams & Wilkins. - 1098-3600. ; 20, s. 452-457
  • Tidskriftsartikel (refereegranskat)abstract
    • PurposeMonoallelic germ-line mutations in the BRCA1/FANCS, BRCA2/FANCD1 and PALB2/FANCN genes confer high risk of breast cancer. Biallelic mutations in these genes cause Fanconi anemia (FA), characterized by malformations, bone marrow failure, chromosome fragility, and cancer predisposition (BRCA2/FANCD1 and PALB2/FANCN), or an FA-like disease presenting a phenotype similar to FA but without bone marrow failure (BRCA1/FANCS). FANCM monoallelic mutations have been reported as moderate risk factors for breast cancer, but there are no reports of any clinical phenotype observed in carriers of biallelic mutations.MethodsBreast cancer probands were subjected to mutation analysis by sequencing gene panels or testing DNA damage response genes.ResultsFive cases homozygous for FANCM loss-of-function mutations were identified. They show a heterogeneous phenotype including cancer predisposition, toxicity to chemotherapy, early menopause, and possibly chromosome fragility. Phenotype severity might correlate with mutation position in the gene.ConclusionOur data indicate that biallelic FANCM mutations do not cause classical FA, providing proof that FANCM is not a canonical FA gene. Moreover, our observations support previous findings suggesting that FANCM is a breast cancer-predisposing gene. Mutation testing of FANCM might be considered for individuals with the above-described clinical features.Genetics in Medicine advance online publication, 24 August 2017; doi:10.1038/gim.2017.123.
  •  
2.
  • Cirenajwis, Helena, et al. (författare)
  • Molecular stratification of metastatic melanoma using gene expression profiling: prediction of survival outcome and benefit from molecular targeted therapy.
  • 2015
  • Ingår i: Oncotarget. - Impact Journals, LLC. - 1949-2553. ; 6:14, s. 12297-12309
  • Tidskriftsartikel (refereegranskat)abstract
    • Melanoma is currently divided on a genetic level according to mutational status. However, this classification does not optimally predict prognosis. In prior studies, we have defined gene expression phenotypes (high-immune, pigmentation, proliferative and normal-like), which are predictive of survival outcome as well as informative of biology. Herein, we employed a population-based metastatic melanoma cohort and external cohorts to determine the prognostic and predictive significance of the gene expression phenotypes. We performed expression profiling on 214 cutaneous melanoma tumors and found an increased risk of developing distant metastases in the pigmentation (HR, 1.9; 95% CI, 1.05-3.28; P=0.03) and proliferative (HR, 2.8; 95% CI, 1.43-5.57; P=0.003) groups as compared to the high-immune response group. Further genetic characterization of melanomas using targeted deep-sequencing revealed similar mutational patterns across these phenotypes. We also used publicly available expression profiling data from melanoma patients treated with targeted or vaccine therapy in order to determine if our signatures predicted therapeutic response. In patients receiving targeted therapy, melanomas resistant to targeted therapy were enriched in the MITF-low proliferative subtype as compared to pre-treatment biopsies (P=0.02). In summary, the melanoma gene expression phenotypes are highly predictive of survival outcome and can further help to discriminate patients responding to targeted therapy.
3.
  • Ferreira, Manuel A., et al. (författare)
  • Genome-wide association and transcriptome studies identify target genes and risk loci for breast cancer
  • 2019
  • Ingår i: Nature communications. - 2041-1723. ; 10:1, s. 1741
  • Tidskriftsartikel (refereegranskat)abstract
    • 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. © 2019, The Author(s).
4.
  • Kharaziha, Pedram, et al. (författare)
  • Functional characterization of novel germline TP53 variants in Swedish families
  • 2019
  • Ingår i: Clinical Genetics. - Wiley-Blackwell. - 0009-9163. ; 96:3, s. 216-225
  • Tidskriftsartikel (refereegranskat)abstract
    • Pathogenic germline TP53 variants predispose to a wide range of early onset cancers, often recognized as the Li-Fraumeni syndrome (LFS). They are also identified in 1% of families with hereditary breast cancer (HrBC) that do not fulfill the criteria for LFS. In this study, we present a total of 24 different TP53 variants identified in 31 Swedish families with LFS or HrBC. Ten of these variants, nine exonic and one splice, have previously not been described as germline pathogenic variants. The nine exonic variants were functionally characterized and demonstrated partial transactivation activity compared to wild-type p53. Some show nuclear localization similar to wild-type p53 while others possess cytoplasmic or perinuclear localization. The four frameshift variants (W91Gfs*32, L111 Wfs*12, S227 Lfs*20 and S240Kfs*25) had negligible, while F134 L and T231del had low level of p53 activity. The L111 Wfs*12 and T231del variants are also deficient for induction of apoptosis. The missense variant R110C retain p53 effects and the nonsense E349* shows at least partial transcription factor activity but has reduced ability to trigger apoptosis. This is the first functional characterization of novel germline TP53 pathogenic or likely pathogenic variants in the Swedish cohort as an attempt to understand its association with LFS and HrBC, respectively.
  •  
5.
  • Li, Jingmei, et al. (författare)
  • Prevalence of BRCA1 and BRCA2 pathogenic variants in a large, unselected breast cancer cohort
  • 2019
  • Ingår i: International Journal of Cancer. - John Wiley & Sons. - 0020-7136. ; 144:5, s. 1195-1204
  • Tidskriftsartikel (refereegranskat)abstract
    • Breast cancer patients with BRCA1/2-driven tumors may benefit from targeted therapy. It is not clear whether current BRCA screening guidelines are effective at identifying these patients. The purpose of our study was to evaluate the prevalence of inherited BRCA1/2 pathogenic variants in a large, clinically representative breast cancer cohort and to estimate the proportion of BRCA1/2 carriers not detected by selectively screening individuals with the highest probability of being carriers according to current clinical guidelines. The study included 5,122 unselected Swedish breast cancer patients diagnosed from 2001 to 2008. Target sequence enrichment (48.48 Fluidigm Access Arrays) and sequencing were performed (Illumina Hi-Seq 2,500 instrument, v4 chemistry). Differences in patient and tumor characteristics of BRCA1/2 carriers who were already identified as part of clinical BRCA1/2 testing routines and additional BRCA1/2 carriers found by sequencing the entire study population were compared using logistic regression models. Ninety-two of 5,099 patients with valid variant calls were identified as BRCA1/2 carriers by screening all study participants (1.8%). Only 416 study participants (8.2%) were screened as part of clinical practice, but this identified 35 out of 92 carriers (38.0%). Clinically identified carriers were younger, less likely postmenopausal and more likely to be associated with familiar ovarian cancer compared to the additional carriers identified by screening all patients. More BRCA2 (34/42, 81.0%) than BRCA1 carriers (23/50, 46%) were missed by clinical screening. In conclusion, BRCA1/2 mutation prevalence in unselected breast cancer patients was 1.8%. Six in ten BRCA carriers were not detected by selective clinical screening of individuals.
6.
  • Lundgren, Christine, et al. (författare)
  • Agreement between molecular subtyping and surrogate subtype classification: a contemporary population-based study of ER-positive/HER2-negative primary breast cancer
  • 2019
  • Ingår i: Breast Cancer Research and Treatment. - Springer. - 1573-7217. ; s. 1-9
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose Oestrogen receptor-positive (ER+) and human epidermal receptor 2-negative (HER2-) breast cancers are classified as Luminal A or B based on gene expression, but immunohistochemical markers are used for surrogate subtyping. The aims of this study were to examine the agreement between molecular subtyping (MS) and surrogate subtyping and to identify subgroups consisting mainly of Luminal A or B tumours. Methods The cohort consisted of 2063 patients diagnosed between 2013-2017, with primary ER+/HER2- breast cancer, analysed by RNA sequencing. Surrogate subtyping was performed according to three algorithms (St. Gallen 2013, Maisonneuve and our proposed Grade-based classification). Agreement (%) and kappa statistics (kappa) were used as concordance measures and ROC analysis for luminal distinction. Ki67, progesterone receptor (PR) and histological grade (HG) were further investigated as surrogate markers. Results The agreement rates between the MS and St. Gallen 2013, Maisonneuve and Grade-based classifications were 62% (kappa = 0.30), 66% (kappa = 0.35) and 70% (kappa = 0.41), respectively. PR did not contribute to distinguishing Luminal A from B tumours (auROC = 0.56). By classifying HG1-2 tumours as Luminal A-like and HG3 as Luminal B-like, agreement with MS was 80% (kappa = 0.46). Moreover, by combining HG and Ki67 status, a large subgroup of patients (51% of the cohort) having amp;gt; 90% Luminal A tumours could be identified. Conclusions Agreement between MS and surrogate classifications was generally poor. However, a post hoc analysis showed that a combination of HG and Ki67 could identify patients very likely to have Luminal A tumours according to MS.
7.
  • Meeks, Huong D., et al. (författare)
  • BRCA2 Polymorphic Stop Codon K3326X and the Risk of Breast, Prostate, and Ovarian Cancers
  • 2016
  • Ingår i: Journal of the National Cancer Institute. - Oxford University Press. - 0027-8874. ; 108:2
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: The K3326X variant in BRCA2 (BRCA2∗c.9976A>T p.Lys3326∗rs11571833) has been found to be associated with small increased risks of breast cancer. However, it is not clear to what extent linkage disequilibrium with fully pathogenic mutations might account for this association. There is scant information about the effect of K3326X in other hormonerelated cancers. Methods: Using weighted logistic regression, we analyzed data from the large iCOGS study including 76637 cancer case patients and 83796 control patients to estimate odds ratios (ORw) and 95% confidence intervals (CIs) for K3326X variant carriers in relation to breast, ovarian, and prostate cancer risks, with weights defined as probability of not having a pathogenic BRCA2 variant. Using Cox proportional hazards modeling, we also examined the associations of K3326X with breast and ovarian cancer risks among 7183 BRCA1 variant carriers. All statistical tests were two-sided. Results: The K3326X variant was associated with breast (ORw = 1.28, 95% CI = 1.17 to 1.40, P = 5.9×10-6) and invasive ovarian cancer (ORw = 1.26, 95% CI = 1.10 to 1.43, P = 3.8×10-3). These associations were stronger for serous ovarian cancer and for estrogen receptor-negative breast cancer (ORw = 1.46, 95% CI = 1.2 to 1.70, P = 3.4×10-5 and ORw = 1.50, 95% CI = 1.28 to 1.76, P = 4.1×10-5, respectively). For BRCA1 mutation carriers, there was a statistically significant inverse association of the K3326X variant with risk of ovarian cancer (HR = 0.43, 95% CI = 0.22 to 0.84, P = .013) but no association with breast cancer. No association with prostate cancer was observed. Conclusions: Our study provides evidence that the K3326X variant is associated with risk of developing breast and ovarian cancers independent of other pathogenic variants in BRCA2. Further studies are needed to determine the biological mechanism of action responsible for these associations.
  •  
8.
  • Moghadasi, Setareh, et al. (författare)
  • The BRCA1 c. 5096G>A p.Arg1699Gln (R1699Q) intermediate risk variant : Breast and ovarian cancer risk estimation and recommendations for clinical management from the ENIGMA consortium
  • 2018
  • Ingår i: Journal of Medical Genetics. - BMJ Publishing Group. - 0022-2593. ; 55:1, s. 15-20
  • Tidskriftsartikel (refereegranskat)abstract
    • Background We previously showed that the BRCA1 variant c.5096G>A p.Arg1699Gln (R1699Q) was associated with an intermediate risk of breast cancer (BC) and ovarian cancer (OC). This study aimed to assess these cancer risks for R1699Q carriers in a larger cohort, including follow-up of previously studied families, to further define cancer risks and to propose adjusted clinical management of female BRCA1*R1699Q carriers. Methods Data were collected from 129 BRCA1*R1699Q families ascertained internationally by ENIGMA (Evidence-based Network for the Interpretation of Germline Mutant Alleles) consortium members. A modified segregation analysis was used to calculate BC and OC risks. Relative risks were calculated under both monogenic model and major gene plus polygenic model assumptions. Results In this cohort the cumulative risk of BC and OC by age 70 years was 20% and 6%, respectively. The relative risk for developing cancer was higher when using a model that included the effects of both the R1699Q variant and a residual polygenic component compared with monogenic model (for BC 3.67 vs 2.83, and for OC 6.41 vs 5.83). Conclusion Our results confirm that BRCA1*R1699Q confers an intermediate risk for BC and OC. Breast surveillance for female carriers based on mammogram annually from age 40 is advised. Bilateral salpingooophorectomy should be considered based on family history.
  •  
9.
  • Nilsson, Martin P., et al. (författare)
  • High patient satisfaction with a simplified BRCA1/2 testing procedure : : long-term results of a prospective study
  • 2019
  • Ingår i: Breast Cancer Research and Treatment. - Springer. - 0167-6806. ; 173:2, s. 313-318
  • Tidskriftsartikel (refereegranskat)abstract
    • Purpose: In the BRCAsearch study, unselected breast cancer patients were prospectively offered germline BRCA1/2 mutation testing through a simplified testing procedure. The purpose of the present study was to evaluate satisfaction with the BRCAsearch testing procedure and, furthermore, to report on uptake rates of prophylactic surgeries among mutation carriers. Methods: Pre-test information was provided by a standardized invitation letter instead of in-person genetic counseling. The patients were offered contact with a genetic counselor for telephone genetic counseling if they felt a need for that. Mutation carriers were telephoned and given a time for a face-to-face post-test genetic counseling appointment. Non-carriers were informed about the test result through a letter. One year after the test results were delivered, a study-specific questionnaire was mailed to the study participants who had consented to testing. The response rate was 83.1% (448 of 539). Results: A great majority (96.0%) of the responders were content with the method used for providing information within the study, and 98.7% were content with having pursued genetic testing. 11.1% answered that they would have liked to receive more oral information. In an adjusted logistic regression model, patients with somatic comorbidity (OR 2.56; P = 0.02) and patients born outside of Sweden (OR 3.54; P = 0.01) were more likely, and patients with occupations requiring at least 3 years of university or college education (OR 0.37; P = 0.06) were less likely to wanting to receive more oral information. All 11 mutation carriers attended post-test genetic counseling. At a median follow-up of 2 years, the uptake of prophylactic salpingo-oophorectomy was 100%, and the uptake of prophylactic mastectomy was 55%. Conclusions: Satisfaction with a simplified BRCA1/2 testing procedure was very high. Written pre-test information has now replaced in-person pre-test counseling for breast cancer patients in our health care region.
10.
  • Peterlongo, Paolo, et al. (författare)
  • Candidate Genetic Modifiers for Breast and Ovarian Cancer Risk in BRCA1 and BRCA2 Mutation Carriers
  • 2015
  • Ingår i: Cancer Epidemiology, Biomarkers and Prevention. - American Association for Cancer Research. - 1055-9965. ; 24:1, s. 308-316
  • Tidskriftsartikel (refereegranskat)abstract
    • Background: BRCA1 and BRCA2 mutation carriers are at substantially increased risk for developing breast and ovarian cancer. The incomplete penetrance coupled with the variable age at diagnosis in carriers of the same mutation suggests the existence of genetic and nongenetic modifying factors. In this study, we evaluated the putative role of variants in many candidate modifier genes. Methods: Genotyping data from 15,252 BRCA1 and 8,211 BRCA2 mutation carriers, for known variants (n = 3,248) located within or around 445 candidate genes, were available through the iCOGS custom-designed array. Breast and ovarian cancer association analysis was performed within a retrospective cohort approach. Results: The observed P values of association ranged between 0.005 and 1.000. None of the variants was significantly associated with breast or ovarian cancer risk in either BRCA1 or BRCA2 mutation carriers, after multiple testing adjustments. Conclusion: There is little evidence that any of the evaluated candidate variants act as modifiers of breast and/or ovarian cancer risk in BRCA1 or BRCA2 mutation carriers. Impact: Genome-wide association studies have been more successful at identifying genetic modifiers of BRCA1/2 penetrance than candidate gene studies.
  •  
Skapa referenser, mejla, bekava och länka
  • Resultat 1-10 av 70
  • [1]234567Nästa
Åtkomst
fritt online (43)
Typ av publikation
tidskriftsartikel (60)
konferensbidrag (8)
annan publikation (1)
forskningsöversikt (1)
Typ av innehåll
refereegranskat (67)
övrigt vetenskapligt (10)
Författare/redaktör
Borg, Åke, (68)
Loman, Niklas, (18)
Vallon-Christersson, ... (18)
Rydén, Lisa, (17)
Ehinger, Anna, (17)
Saal, Lao, (16)
visa fler...
Häkkinen, Jari, (15)
Larsson, Christer, (14)
Staaf, Johan, (13)
Kvist, Anders (13)
Bendahl, Pär Ola, (10)
Törngren, Therese, (9)
Olsson, Håkan, (8)
Borg, A, (7)
Nik-Zainal, Serena (7)
Chen, Yilun, (7)
Jönsson, Göran B, (7)
Børresen-Dale, Anne- ... (6)
Nevanlinna, Heli (6)
Stratton, Michael R. (6)
Martin, Sancha (6)
Ramakrishna, Manasa (6)
Richardson, Andrea L ... (6)
Campbell, Peter J. (6)
Brueffer, Christian, (6)
Winter, Christof, (6)
Gerdes, Anne-Marie (6)
Hansen, Thomas V. O. (6)
Frisen, Jonas (6)
Salmen, Fredrik, (6)
Aittomäki, Kristiina (5)
Lundeberg, Joakim, (5)
Benitez, Javier (5)
Davies, Helen R. (5)
Lakhani, Sunil R. (5)
Span, Paul N. (5)
Gruvberger, Sofia, (5)
Grabau, Dorthe, (5)
Thomassen, Mads (5)
Ehrencrona, Hans (5)
Wappenschmidt, Barba ... (5)
Arnold, Norbert (5)
Nathanson, Katherine ... (5)
Manoukian, Siranoush (5)
Radice, Paolo (5)
Diez, Orland (5)
Borg, Ake (5)
Ingvar, Christian, (5)
Vickovic, Sanja, (5)
Martens, John W. M. (5)
visa färre...
Lärosäte
Lunds universitet (67)
Karolinska Institutet (11)
Uppsala universitet (7)
Umeå universitet (2)
Kungliga Tekniska Högskolan (2)
Stockholms universitet (2)
visa fler...
Linköpings universitet (2)
Göteborgs universitet (1)
Örebro universitet (1)
Naturhistoriska riksmuseet (1)
visa färre...
Språk
Engelska (69)
Svenska (1)
Forskningsämne (UKÄ/SCB)
Medicin och hälsovetenskap (66)
Naturvetenskap (6)
Teknik (3)

År

 
pil uppåt Stäng

Kopiera och spara länken för att återkomma till aktuell vy