0000000000199524

AUTHOR

Shuying Liu

showing 3 related works from this author

Dynamic clonal remodelling in breast cancer metastases is associated with subtype conversion

2019

Background: Changes in the clinical subtype (CS) and intrinsic subtype (IS) between breast cancer (BC) metastases and corresponding primary tumours have been reported. However, their relationship with tumour genomic changes remains poorly characterised. Here, we analysed the association between genomic remodelling and subtype conversion in paired primary and metastatic BC samples. Methods: A total of 57 paired primary and metastatic tumours from GEICAM/2009-03 (ConvertHER, NCT01377363) study participants with centrally assessed CS (n = 57) and IS (n = 46) were analysed. Targeted capture and next-generation sequencing of 202 genes on formalin-fixed paraffin-embedded samples was performed. Th…

0301 basic medicineAdultCancer ResearchSkin NeoplasmsBioinformaticsBone NeoplasmsBreast Neoplasmsmedicine.disease_causeMetastatic tumours03 medical and health sciences0302 clinical medicineBreast cancerBreast cancermedicineBiomarkers TumorHumansProspective StudiesPAM50AgedAged 80 and overMutationIntrinsic subtypebusiness.industryHuman epidermal growth factorBrain NeoplasmsClonal architectureHigh-Throughput Nucleotide SequencingClonal remodellingMiddle Agedmedicine.diseasePrognosisGene Expression Regulation Neoplastic030104 developmental biologyOncology030220 oncology & carcinogenesisLymphatic MetastasisCancer cellMutationCancer researchFemaleNeoplasm Recurrence LocalClinical subtypeHeterogeneitybusinessHormoneFollow-Up Studies
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PI3K pathway mutations and PTEN levels in primary and metastatic breast cancer.

2011

Abstract The purpose of this work was to determine whether there are differences in PIK3CA mutation status and PTEN protein expression between primary and matched metastatic breast tumors as this could influence patient management. Paraffin sections of 50 μm were used for DNA extraction and slides of 3 μm for immunohistochemistry (IHC) and FISH. Estrogen receptor, progesterone receptor, and HER2 IHC were repeated in a central laboratory for both primary tumors and metastases. PTEN levels were assessed by IHC and phosphoinositide 3-kinase (PI3K) pathway mutations were detected by a mass spectroscopy–based approach. Median age was 48 years (range: 30–83 years). Tumor subtype included 72% horm…

AdultCancer Researchmedicine.medical_specialtyClass I Phosphatidylinositol 3-KinasesReceptor ErbB-2Breast Neoplasmsmedicine.disease_causeArticleMetastasisMetastasisPhosphatidylinositol 3-KinasesBreast cancerInternal medicineBreast CancermedicinePTENHumansPTEN lossReceptorneoplasmsPI3K/AKT/mTOR pathwayAgedAged 80 and overMutationbiologyPTEN PhosphohydrolaseMiddle Agedmedicine.diseaseMetastatic breast cancerEndocrinologyOncologyReceptors EstrogenMutationbiology.proteinCancer researchImmunohistochemistryFemalePIK3CA mutationsReceptors ProgesteroneSignal TransductionMolecular cancer therapeutics
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Abstract PD3-6: ConvertHER: Evolution of genomic alterations from primary to metastatic breast cancer

2015

Abstract Background: Changes in breast cancer receptor status over disease progression and treatment have been described to a point that could alter response to therapy. There is growing interest in delivering biomarker/genomically-based targeted therapies. We aimed to determine the concordance of genomic alterations between primary (P) and metastatic (M) breast cancer in a prospective collection study. Methods: Targeted capture and next-generation sequencing was performed on formalin-fixed paraffin-embedded (FFPE) samples, profiling 202 cancer relevant genes in 61 pairs (primary and corresponding recurrence/metastasis). Tumors were classified at baseline as [hormone receptor (HR)+/HER2-, H…

OncologyCancer Researchmedicine.medical_specialtyPathologybusiness.industryMAP3K1medicine.diseaseMetastatic breast cancerMetastasisExonBreast cancerOncologyInternal medicinemedicineMEN1skin and connective tissue diseasesbusinessExome sequencingTriple-negative breast cancerCancer Research
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