Browsing Breast Cancer Research by author "Cheang, Chon"
Now showing items 1-20 of 24
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3D Functional Genomics Screens Identify CREBBP as a Targetable Driver in Aggressive Triple-Negative Breast Cancer.
Peck, B; Bland, P; Mavrommati, I; Muirhead, G; Cottom, H; et al. (AMER ASSOC CANCER RESEARCH, 2021-02-15)Triple-negative breast cancers (TNBC) are resistant to standard-of-care chemotherapy and lack known targetable driver gene alterations. Identification of novel drivers could aid the discovery of new treatment strategies ... -
A Four-gene Decision Tree Signature Classification of Triple-negative Breast Cancer: Implications for Targeted Therapeutics.
Quist, J; Mirza, H; Cheang, MCU; Telli, ML; O'Shaughnessy, JA; et al. (AMER ASSOC CANCER RESEARCH, 2019-01-01)The molecular complexity of triple-negative breast cancers (TNBCs) provides a challenge for patient management. We set out to characterize this heterogeneous disease by combining transcriptomics and genomics data, with the ... -
Carboplatin in BRCA1/2-mutated and triple-negative breast cancer BRCAness subgroups: the TNT Trial.
Tutt, A; Tovey, H; Cheang, MCU; Kernaghan, S; Kilburn, L; et al. (NATURE PUBLISHING GROUP, 2018-04-30)Germline mutations in BRCA1/2 predispose individuals to breast cancer (termed germline-mutated BRCA1/2 breast cancer, gBRCA-BC) by impairing homologous recombination (HR) and causing genomic instability. HR also repairs ... -
Changes in Expression of Genes Representing Key Biologic Processes after Neoadjuvant Chemotherapy in Breast Cancer, and Prognostic Implications in Residual Disease.
Klintman, M; Buus, R; Cheang, MCU; Sheri, A; Smith, IE; et al. (AMER ASSOC CANCER RESEARCH, 2016-05-15)PURPOSE: The primary aim was to derive evidence for or against the clinical importance of several biologic processes in patients treated with neoadjuvant chemotherapy (NAC) by assessing expression of selected genes with ... -
Development and validation for research assessment of Oncotype DX® Breast Recurrence Score, EndoPredict® and Prosigna®.
Buus, R; Szijgyarto, Z; Schuster, EF; Xiao, H; Haynes, BP; et al. (NATURE RESEARCH, 2021-02-12)Multi-gene prognostic signatures including the Oncotype® DX Recurrence Score (RS), EndoPredict® (EP) and Prosigna® (Risk Of Recurrence, ROR) are widely used to predict the likelihood of distant recurrence in patients with ... -
Early Enrichment of ESR1 Mutations and the Impact on Gene Expression in Presurgical Primary Breast Cancer Treated with Aromatase Inhibitors.
Leal, MF; Haynes, BP; Schuster, E; Yeo, B; Afentakis, M; et al. (2019-12)PURPOSE:To investigate the presence of ESR1 mutations in primary estrogen-receptor-positive (ER+) breast cancer treated with extended (>4 weeks) neoadjuvant (presurgical) aromatase inhibitor (NAI) therapy and to identify ... -
Early Enrichment of ESR1 Mutations and the Impact on Gene Expression in Presurgical Primary Breast Cancer Treated with Aromatase Inhibitors.
Leal, MF; Haynes, BP; Schuster, E; Yeo, B; Afentakis, M; et al. (AMER ASSOC CANCER RESEARCH, 2019-12-15)PURPOSE: To investigate the presence of ESR1 mutations in primary estrogen-receptor-positive (ER+) breast cancer treated with extended (>4 weeks) neoadjuvant (presurgical) aromatase inhibitor (NAI) therapy and to identify ... -
Early enrichment of ESR1 mutations and the impact on gene expression in primary breast cancer treated with aromatase inhibitors in the pre-surgical setting
Dowsett, M; Ferreira Leal, M; Haynes, B; Schuster, E; Yeo, B; et al. -
Genomic Instability and TP53 Genomic Alterations Associate With Poor Antiproliferative Response and Intrinsic Resistance to Aromatase Inhibitor Treatment.
Schuster, EF; Gellert, P; Segal, CV; López-Knowles, E; Buus, R; et al. (AMER SOC CLINICAL ONCOLOGY, 2019-01)PURPOSE: Although aromatase inhibitor (AI) treatment is effective in estrogen receptor-positive postmenopausal breast cancer, resistance is common and incompletely explained. Genomic instability, as measured by somatic ... -
HER2-enriched subtype and novel molecular subgroups drive aromatase inhibitor resistance and an increased risk of relapse in early ER+/HER2+ breast cancer.
Bergamino, MA; López-Knowles, E; Morani, G; Tovey, H; Kilburn, L; et al. (ELSEVIER, 2022-08-16)BACKGROUND: Oestrogen receptor positive/ human epidermal growth factor receptor positive (ER+/HER2+) breast cancers (BCs) are less responsive to endocrine therapy than ER+/HER2- tumours. Mechanisms underpinning the ... -
Heterogeneity in global gene expression profiles between biopsy specimens taken peri-surgically from primary ER-positive breast carcinomas.
López-Knowles, E; Gao, Q; Cheang, MCU; Morden, J; Parker, J; et al. (BIOMED CENTRAL LTD, 2016-04-01)BACKGROUND: Gene expression is widely used for the characterisation of breast cancers. Variability due to tissue heterogeneity or measurement error or systematic change due to peri-surgical procedures can affect measurements ... -
Impact of aromatase inhibitor treatment on global gene expression and its association with antiproliferative response in ER+ breast cancer in postmenopausal patients.
Gao, Q; López-Knowles, E; Cheang, MCU; Morden, J; Ribas, R; et al. (BMC, 2019-12-31)BACKGROUND: Endocrine therapy reduces breast cancer mortality by 40%, but resistance remains a major clinical problem. In this study, we sought to investigate the impact of aromatase inhibitor (AI) therapy on gene expression ... -
Impact of the menstrual cycle on commercial prognostic gene signatures in oestrogen receptor-positive primary breast cancer.
Haynes, BP; Schuster, G; Buus, R; Alataki, A; Ginsburg, O; et al. (SPRINGER, 2021-11-01)PURPOSE: Changes occur in the expression of oestrogen-regulated and proliferation-associated genes in oestrogen receptor (ER)-positive breast tumours during the menstrual cycle. We investigated if Oncotype® DX recurrence ... -
Long-term outcome and prognostic value of Ki67 after perioperative endocrine therapy in postmenopausal women with hormone-sensitive early breast cancer (POETIC): an open-label, multicentre, parallel-group, randomised, phase 3 trial.
Smith, I; Robertson, J; Kilburn, L; Wilcox, M; Evans, A; et al. (ELSEVIER SCIENCE INC, 2020-11-01)BACKGROUND: Preoperative and perioperative aromatase inhibitor (POAI) therapy has the potential to improve outcomes in women with operable oestrogen receptor-positive primary breast cancer. It has also been suggested that ... -
Longitudinal profiling identifies co-occurring BRCA1/2 reversions, TP53BP1, RIF1 and PAXIP1 mutations in PARP inhibitor-resistant advanced breast cancer.
Harvey-Jones, E; Raghunandan, M; Robbez-Masson, L; Magraner-Pardo, L; Alaguthurai, T; et al. (Elsevier BV, 2024-01-19)BACKGROUND: Resistance to therapies that target homologous recombination deficiency (HRD) in breast cancer limits their overall effectiveness. Multiple, preclinically validated, mechanisms of resistance have been proposed, ... -
Molecular profiling of aromatase inhibitor sensitive and resistant ER+HER2- postmenopausal breast cancers.
Schuster, EF; Lopez-Knowles, E; Alataki, A; Zabaglo, L; Folkerd, E; et al. (NATURE PORTFOLIO, 2023-07-07)Aromatase inhibitors (AIs) reduce recurrences and mortality in postmenopausal patients with oestrogen receptor positive (ER+) breast cancer (BC), but >20% of patients will eventually relapse. Given the limited understanding ... -
Mutation tracking in circulating tumor DNA predicts relapse in early breast cancer.
Garcia-Murillas, I; Schiavon, G; Weigelt, B; Ng, C; Hrebien, S; et al. (AMER ASSOC ADVANCEMENT SCIENCE, 2015-08-26)The identification of early-stage breast cancer patients at high risk of relapse would allow tailoring of adjuvant therapy approaches. We assessed whether analysis of circulating tumor DNA (ctDNA) in plasma can be used to ... -
Novel 18-gene signature for predicting relapse in ER-positive, HER2-negative breast cancer.
Buus, R; Yeo, B; Brentnall, AR; Klintman, M; Cheang, MCU; et al. (2018-09-04)Background Several prognostic signatures for early oestrogen receptor-positive (ER+) breast cancer have been established with a 10-year follow-up. We tested the hypothesis that signatures optimised for 0-5-year and 5-10-year ... -
Novel 18-gene signature for predicting relapse in ER-positive, HER2-negative breast cancer.
Buus, R; Yeo, B; Brentnall, AR; Klintman, M; Cheang, MCU; et al. (BMC, 2018-09-04)BACKGROUND: Several prognostic signatures for early oestrogen receptor-positive (ER+) breast cancer have been established with a 10-year follow-up. We tested the hypothesis that signatures optimised for 0-5-year and 5-10-year ... -
PIM1 kinase regulates cell death, tumor growth and chemotherapy response in triple-negative breast cancer.
Brasó-Maristany, F; Filosto, S; Catchpole, S; Marlow, R; Quist, J; et al. (NATURE PUBLISHING GROUP, 2016-11-01)Triple-negative breast cancers (TNBCs) have poor prognosis and lack targeted therapies. Here we identified increased copy number and expression of the PIM1 proto-oncogene in genomic data sets of patients with TNBC. TNBC ...