CDC20 expression in oestrogen receptor positive breast cancer predicts poor prognosis and lack of response to endocrine therapy

In this study, we investigated the prognostic and predictive role of CDC20 in early ER+ breast cancer patients.MethodsThe biological and clinical impact of CDC20 expression was assessed in large clinical annotated cohort of ER+  breast cancer with long-term follow-up at the mRNA level, using METABRIC and KM-Plotter datasets, and the protein level using immunohistochemistry on patients presenting at Nottingham. CDC20 expression was correlated with clinico-pathological parameters, molecular subtypes, clinical outcome and e fficacy of endocrine therapy.ResultsHigh CDC20 mRNA expression was associated with poor clinico-pathological parameters including large tumour size and high tumour grade (P 
Source: Breast Cancer Research and Treatment - Category: Cancer & Oncology Source Type: research

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A study led by UCLA researchers found that adding ribociclib, a targeted therapy drug, to standard hormone therapy significantly improves overall survival in postmenopausal women with advanced hormone-receptor positive/HER2- breast cancer, one of the most common types of the disease.The findings also show the combination treatment is beneficial at the time of recurrence and should become a first-line option in postmenopausal women with HR+/HER2- advanced breast cancer.The study was published today in the New England Journal of Medicine and presented earlier this year at the European Society for Medical Oncology Congress in...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
This study aims to evaluate the antitumour activity of tamoxifen (TAM), a major agent of hormonal therapy for breast cancer, in preclinical GBC model. Quantitative real-time PCR was used to investigate mRNA levels. Protein expression was measured by immunohistochemistry and Western blot. Glycolytic levels were measured by glucose consumption and lactic acid measurement. The antitumour activity of TAM alone or with cisplatin was examined with CCK8 assay, colony formation, flow cytometry and in vivo models. The results revealed that ERÉ‘ expression was higher in GBC tissues and predicted poor clinical outcomes. TAM was showe...
Source: J Cell Mol Med - Category: Molecular Biology Authors: Tags: J Cell Mol Med Source Type: research
ConclusionsAmong patients with HR-positive advanced breast cancer treated with CDK4/6i combined with endocrine, the estimated PFS was comparable to previously reported data. Treatment was well tolerated, with a low drug discontinuation rate.Legal entity responsible for the studyHellenic Cooperative Oncology Group.FundingHellenic Cooperative Oncology Group (HeCOG).DisclosureE. Fountzilas: Travel / Accommodation / Expenses: K.A.M ONCOLOGY / HEMATOLOGY; Travel / Accommodation / Expenses: Merck; Shareholder / Stockholder / Stock options: Deciphera. G. Aravantinos: Advisory / Consultancy: Novartis; Advisory / Consultancy: Brist...
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
AbstractBackgroundA high percentage of breast cancer patients in the Asia-Pacific ( ∼42%) and Middle East (∼50%) regions are aged 50 years or younger. Although a high proportion of younger patients with endocrine-responsive metastatic disease are treated initially with cytotoxic chemotherapy (CT) in routine general practice, data from phase III trials have shown higher response rates and longer progression-free survival with endocrine therapy (ET) in combination with CDK4/6 inhibitor versus single agent ET. Due to lack of direct evidence, trials in pre-/perimenopausal advanced breast cancer are thus necessary to as...
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
ConclusionsMLT and MTF showed encouraging results in combination with neoadjuvant hormonotherapy. However, these data require confirmation in larger randomized studies.Legal entity responsible for the studyT. Semiglazova.FundingFederal State Budget Institution "National Medical Research Center of Oncology na N.N. Petrov" Ministry of Healthcare of Russian Federation.DisclosureAll authors have declared no conflicts of interest.
Source: Annals of Oncology - Category: Cancer & Oncology Source Type: research
Abstract Endocrine therapy represents a mainstay adjuvant treatment of estrogen receptor-positive (ER+) breast cancer in clinical practice with an overall survival (OS) benefit. However, the emergence of resistance is inevitable over time and is present in one-third of the ER+ breast tumors. Several mechanisms of endocrine resistance in ER+/HER2- advanced breast cancers, through ERα itself, receptor tyrosine signaling, or cell cycle pathway, have been identified to be pivotal in endocrine therapy. The epigenetic alterations also contribute to ensuring tumor cells' escape from endocrine therapie...
Source: Cellular and Molecular Life Sciences : CMLS - Category: Cytology Authors: Tags: Cell Mol Life Sci Source Type: research
CONCLUSION: Collectively, these findings suggest that while FGFR1 amplification confers broad resistance to ER, PI3K, and CDK4/6 inhibitors, TORC1 inhibitors might have a unique therapeutic role in the treatment of patients with ER+/FGFR1+ MBC. PMID: 31371343 [PubMed - as supplied by publisher]
Source: Clinical Cancer Research - Category: Cancer & Oncology Authors: Tags: Clin Cancer Res Source Type: research
Damu Tang Breast cancer stem cells (BCSC) play critical roles in the acquisition of resistance to endocrine therapy in estrogen receptor (ER)-positive (ER + ve) breast cancer (BC). The resistance results from complex alterations involving ER, growth factor receptors, NOTCH, Wnt/β-catenin, hedgehog, YAP/TAZ, and the tumor microenvironment. These mechanisms are likely converged on regulating BCSCs, which then drive the development of endocrine therapy resistance. In this regard, hormone therapies enrich BCSCs in ER + ve BCs under both pre-clinical and clinical settings along with upregulation of the core compo...
Source: Cancers - Category: Cancer & Oncology Authors: Tags: Review Source Type: research
A UCLA-led study has found that using a drug called ribociclib in combination with a common hormone therapy may help premenopausal women with the most common type of breast cancer live longer than if they only receive the hormone therapy.Ribociclib is considered a cyclin-dependent kinase inhibitor that works by blocking the activity of proteins called cyclin-dependent kinase 4/6 enzymes, which promote cell division and cancer growth.The study involved 672 women aged 25 to 59 when the study began who had advanced hormone-receptor positive/HER2- breast cancer. Seventy percent of the women who took the combination therapy wer...
Source: UCLA Newsroom: Health Sciences - Category: Universities & Medical Training Source Type: news
In conclusion, our WGCNA analysis identified candidate prognostic biomarkers for further basic and clinical researches. Introduction Breast cancer is a frequently diagnosed malignancy and the leading cause of cancer death among females around the world, accounting for 24% of cancer diagnoses and 15% of cancer deaths in females. According to Global Cancer Statistics 2018, there will be nearly 2.1 million new cases diagnosed globally, with ~62 thousand deaths. The incident rates of breast cancer increased in most developing countries during last decades, resulting from a combination of social and economic factors, incl...
Source: Frontiers in Oncology - Category: Cancer & Oncology Source Type: research
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