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L773:1465 5411 OR L773:1465 542X
 

Sökning: L773:1465 5411 OR L773:1465 542X > Molecular analyses ...

Molecular analyses of triple-negative breast cancer in the young and elderly

Aine, Mattias (författare)
Lund University,Lunds universitet,Avdelningen för molekylär hematologi,Institutionen för laboratoriemedicin,Medicinska fakulteten,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Bröst/lungcancer,Sektion I,Institutionen för kliniska vetenskaper, Lund,Division of Molecular Hematology (DMH),Department of Laboratory Medicine,Faculty of Medicine,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Breast/lungcancer,Section I,Department of Clinical Sciences, Lund
Boyaci, Ceren (författare)
Karolinska Institutet
Hartman, Johan (författare)
Karolinska Institutet
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Häkkinen, Jari (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,LUCC: Lund University Cancer Centre,Other Strong Research Environments
Mitra, Shamik (författare)
Lund University,Lunds universitet,Avdelningen för klinisk genetik,Institutionen för laboratoriemedicin,Medicinska fakulteten,Genetiska avvikelser i mjukdelstumörer,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Division of Clinical Genetics,Department of Laboratory Medicine,Faculty of Medicine,The genetics of soft tissue tumors,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments
Campos, Ana Bosch (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Molekylära behandlingsstrategier vid bröstcancer,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Molecular therapeutics in breast cancer,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments
Nimeus, Emma (författare)
Lund University,Lunds universitet,Bröstcancerkirurgi,Forskargrupper vid Lunds universitet,Bröstcancer Proteogenomik,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Biomarkörer och Epi,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Breast Cancer Surgery,Lund University Research Groups,Breast cancer Proteogenomics,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Biomarkers and epidemiology,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine
Ehinger, Anna (författare)
Lund University,Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Patologi, Lund,Sektion V,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Pathology, Lund,Section V,Department of Clinical Sciences, Lund,Faculty of Medicine,Region Skåne
Vallon-Christersson, Johan (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,LUCC: Lund University Cancer Centre,Other Strong Research Environments
Borg, Åke (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Familjär bröstcancer,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Familial Breast Cancer,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments
Staaf, Johan (författare)
Lund University,Lunds universitet,Bröstcancer-genetik,Sektion I,Institutionen för kliniska vetenskaper, Lund,Medicinska fakulteten,Forskningsgrupp Lungcancer,Forskargrupper vid Lunds universitet,LUCC: Lunds universitets cancercentrum,Övriga starka forskningsmiljöer,Bröst/lungcancer,Institutionen för kliniska vetenskaper, Lund,Breastcancer-genetics,Section I,Department of Clinical Sciences, Lund,Faculty of Medicine,Research Group Lung Cancer,Lund University Research Groups,LUCC: Lund University Cancer Centre,Other Strong Research Environments,Breast/lungcancer,Department of Clinical Sciences, Lund
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 (creator_code:org_t)
2021-02-10
2021
Engelska.
Ingår i: Breast cancer research : BCR. - : Springer Science and Business Media LLC. - 1465-5411 .- 1465-542X. ; 23:1
Relaterad länk:
http://dx.doi.org/10... (free)
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https://breast-cance...
https://lup.lub.lu.s...
https://doi.org/10.1...
http://kipublication...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
Stäng  
  • BACKGROUND: Breast cancer in young adults has been implicated with a worse outcome. Analyses of genomic traits associated with age have been heterogenous, likely because of an incomplete accounting for underlying molecular subtypes. We aimed to resolve whether triple-negative breast cancer (TNBC) in younger versus older patients represent similar or different molecular diseases in the context of genetic and transcriptional subtypes and immune cell infiltration.PATIENTS AND METHODS: In total, 237 patients from a reported population-based south Swedish TNBC cohort profiled by RNA sequencing and whole-genome sequencing (WGS) were included. Patients were binned in 10-year intervals. Complimentary PD-L1 and CD20 immunohistochemistry and estimation of tumor-infiltrating lymphocytes (TILs) were performed. Cases were analyzed for differences in patient outcome, genomic, transcriptional, and immune landscape features versus age at diagnosis. Additionally, 560 public WGS breast cancer profiles were used for validation.RESULTS: Median age at diagnosis was 62 years (range 26-91). Age was not associated with invasive disease-free survival or overall survival after adjuvant chemotherapy. Among the BRCA1-deficient cases (82/237), 90% were diagnosed before the age of 70 and were predominantly of the basal-like subtype. In the full TNBC cohort, reported associations of patient age with changes in Ki67 expression, PIK3CA mutations, and a luminal androgen receptor subtype were confirmed. Within DNA repair deficiency or gene expression defined molecular subgroups, age-related alterations in, e.g., overall gene expression, immune cell marker gene expression, genetic mutational and rearrangement signatures, amount of copy number alterations, and tumor mutational burden did, however, not appear distinct. Similar non-significant associations for genetic alterations with age were obtained for other breast cancer subgroups in public WGS data. Consistent with age-related immunosenescence, TIL counts decreased linearly with patient age across different genetic TNBC subtypes.CONCLUSIONS: Age-related alterations in TNBC, as well as breast cancer in general, need to be viewed in the context of underlying genomic phenotypes. Based on this notion, age at diagnosis alone does not appear to provide an additional layer of biological complexity above that of proposed genetic and transcriptional phenotypes of TNBC. Consequently, treatment decisions should be less influenced by age and more driven by tumor biology.

Ämnesord

MEDICIN OCH HÄLSOVETENSKAP  -- Klinisk medicin -- Cancer och onkologi (hsv//swe)
MEDICAL AND HEALTH SCIENCES  -- Clinical Medicine -- Cancer and Oncology (hsv//eng)

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