Supplemental_Material – Supplemental material for Cancer registries - guardians of breast cancer biomarker information: A systematic review (original) (raw)
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Cancer registries - guardians of breast cancer biomarker information: A systematic review
The International Journal of Biological Markers, 2019
Background: Breast cancer is the most common cancer and the leading cause of cancer-related death in females, with a large societal and economic impact. Decisions regarding its treatment are largely affected by the categorization into different subtypes with hormone receptor status and HER2 status being the most important predictive factors. Other biological markers play an important role for prognostic and predictive reasons. The data collection and harmonization of cancer cases are performed by cancer registries whose collection of parameters largely differs, partially including results from biomarker testing. Methods: This systematic literature review consisting of a total of 729 reports determined whether information about biomarker testing in breast cancer cases is collected and published by cancer registries worldwide. Results: The number of publications using breast cancer biomarker data from registries steeply rose with the beginning of the 21st century and some hospital-bas...
2022
Introduction: Breast cancer treatment has experienced several changes in the past decades due to the discovery of specific prognostic and predictive biomarkers that enable the application of more individualized therapies to different molecular subgroups. This study determined biomarkers of breast cancer. Material and methods: This was a hospital based cross sectional observational study conducted for one year from 1st June 2019 to 31st May 2020 in the Department of Pathology, Indira Gandhi Medical College, Shimla. Results: 31 (60.8%) cases were ER positive and 20 (39.2%) were ER negative as per Allred Scoring. In our study, 28 (54.9%) cases were PR positive and 23 (45.1%) were PR negative as per Allred Scoring. Conclusion: Assessment of ER and PR is important for prognosis.
Tumor markers in breast cancer--evaluation of their clinical usefulness
Collegium antropologicum, 2011
Breast cancer is the most common neoplasm affecting women in the Western world. Many studies are still conducted with the purpose of finding markers that could be used for early diagnosis and/or serve as possible reliable prognostic or predictive parameters, but with conflicting results. At present, no markers are available for an early diagnosis of breast cancer For surveillance of patients with diagnosed breast cancer the most widely used serum markers are CA 15-3 and CEA which, in combination with other clinical parameters, could have clinical significance. The most useful and clinically important tissue-based markers in breast cancer are estrogen and progesterone receptors, used as a basis for hormonal therapy, and HER-2 receptors, essential in selecting patients for the treatment with Herceptin. New or potentially new markers for breast cancer include BRCA1 and BRCA2 genes for selecting patients at high risk of developing hereditary breast cancer, as well as urokinase plasminog...
Biomarkers play an essential role in the management of patients with invasive breast cancer. For selecting patients likely to respond to endocrine therapy, both oestrogen receptors (ERs) and progesterone receptors (PRs) should be measured on all newly diagnosed invasive breast cancers. On the other hand, for selecting likely response to all forms of anti-HER2 therapy (trastuzumab, pertuzumab, lapatinib or ado-trastuzumab emtansine), determination of HER2 expression or gene copy number is mandatory. Where feasible, measurement of ER, PR and HER2 should be performed on recurrent lesions and the primary invasive tumour. Although methodological problems exist in the determination of Ki67, because of its clearly established clinical value, wide availability and low costs relative to the available multianalyte signatures, Ki67 may be used for determining prognosis, especially if values are low or high. In oestrogen receptor (ER)-positive, HER2-negative, lymph nodeenegative patients, multianalyte tests such as urokinase plasminogen activator (uPA)-PAI-1, Oncotype DX, MammaPrint, EndoPredict, Breast Cancer Index (BCI) and Prosigna (PAM50) may be used to predict outcome and aid adjunct therapy decision-making. Oncotype DX, Mamma-Print, EndoPredict and Prosigna may be similarly used in patients with 1e3 metastatic lymph nodes. All laboratories measuring biomarkers for patient management should use analytically
Clinical & translational oncology : official publication of the Federation of Spanish Oncology Societies and of the National Cancer Institute of Mexico, 2017
This consensus statement revises and updates the recommendations for biomarkers use in the diagnosis and treatment of breast cancer, and is a joint initiative of the Spanish Society of Medical Oncology and the Spanish Society of Pathology. This expert group recommends determining in all cases of breast cancer the histologic grade and the alpha-estrogen receptor (ER), progesterone receptor, Ki-67 and HER2 status, in order to assist prognosis and establish therapeutic options, including hormone therapy, chemotherapy and anti-HER2 therapy. One of the four available genetic prognostic platforms (MammaPrint, Oncotype DX, Prosignaor EndoPredict) may be used in node-negative ER-positive patients to establish a prognostic category and decide with the patient whether adjuvant treatment may be limited to hormonal therapy. Newer technologies including next-generation sequencing, liquid biopsy, tumour-infiltrating lymphocytes or PD-1 determination are at this point investigational.
Far Beyond the Usual Biomarkers in Breast Cancer: A Review
Journal of Cancer, 2014
Research investigating biomarkers for early detection, prognosis and the prediction of treatment responses in breast cancer is rapidly expanding. However, no validated biomarker currently exists for use in routine clinical practice, and breast cancer detection and management remains dependent on invasive procedures. Histological examination remains the standard for diagnosis, whereas immunohistochemical and genetic tests are utilized for treatment decisions and prognosis determinations. Therefore, we conducted a comprehensive review of literature published in PubMed on breast cancer biomarkers between 2009 and 2013. The keywords that were used together were breast cancer, biomarkers, diagnosis, prognosis and drug response. The cited references of the manuscripts included in this review were also screened. We have comprehensively summarized the performance of several biomarkers for diagnosis, prognosis and predicted drug responses of breast cancer. Finally, we have identified 15 biomarkers that have demonstrated promise in initial studies and several miRNAs. At this point, such biomarkers must be rigorously validated in the clinical setting to be translated into clinically useful tests for the diagnosis, prognosis and prediction of drug responses of breast cancer.
Biomarkers in Breast Cancer: An Old Story with a New End
Genes
Breast cancer is the second most frequent cancer in the world. It is a heterogeneous disease and the leading cause of cancer mortality in women. Advances in molecular technologies allowed for the identification of new and more specifics biomarkers for breast cancer diagnosis, prognosis, and risk prediction, enabling personalized treatments, improving therapy, and preventing overtreatment, undertreatment, and incorrect treatment. Several breast cancer biomarkers have been identified and, along with traditional biomarkers, they can assist physicians throughout treatment plan and increase therapy success. Despite the need of more data to improve specificity and determine the real clinical utility of some biomarkers, others are already established and can be used as a guide to make treatment decisions. In this review, we summarize the available traditional, novel, and potential biomarkers while also including gene expression profiles, breast cancer single-cell and polyploid giant cancer...
Jugoslovenska medicinska biohemija, 2006
Breast cancer is the most common cancer in women and its incidence experienced an important increase, thanks to the introduction of a systematic screening. The increased incidence of early breast cancer has led to debates on its over-treatment, which may cause unnecessary harm to patients with favorable prognosis. Therefore, modern research is in the quest of finding the perfect prognostic marker to avoid overtreatment in patients with a favorable prognosis. In this perspective, many molecular markers have been studied in the last decades in order to provide both a useful prognostic tool, able to determine whether the cancer is likely to be indolent or aggressive, and a possible therapeutic target. In this chapter, we review the current knowledge about the principal biomarkers, which are usually immunohistochemically tested on breast surgical specimens, including ER and PR, Mib1/Ki-67 and HER2/neu expression. Furthermore, we will analyze other possible prognostic markers which may have in the future a key role in breast cancer management, such as several multigene panels (OncotypeDX, Mammaprint, NanoString Prosigma). Finally, we will discuss the role of genetic tests for some know genetic mutations associated with higher breast cancer susceptibility (BRCA1 and 2 genes).
Systematic Review of the Use of Biomarkers in Early Breast Cancer Diagnosis
Qeios, 2018
Early detection of breast cancer improves prognosis. Unfortunately, in many instances patients' tumours are diagnosed following metastasis, thus making treatment more difficult and worsening their prognosis. T he development of a specific biomarker for the early detection of breast cancer could potentially allow more women to be successfully treated yet at present there no validated biomarkers available. Only a few biomarkers (such as HER-2/neu, estrogen receptor, and progesterone receptor) have a limited utility for diagnosis and prognosis. T hus, there is a great need for new biomarkers for breast cancer. Here we review the current state of the art relative to the use of biomarkers in early breast cancer screening and diagnosis.