TY - JOUR
T1 - Detecting blood-based biomarkers in metastatic breast cancer
T2 - A systematic review of their current status and clinical utility
AU - Berghuis, A.M. Sofie
AU - Koffijberg, Hendrik
AU - Prakash, Jai
AU - Terstappen, Leon W.M.M.
AU - IJzerman, Maarten J.
PY - 2017/2/9
Y1 - 2017/2/9
N2 - Reviews on circulating biomarkers in breast cancer usually focus on one single biomarker or a selective group of biomarkers. An overview summarizing the discovery and evaluation of all blood-based biomarkers in metastatic breast cancer is lacking. This systematic review aims to identify the available evidence of known blood-based biomarkers in metastatic breast cancer, regarding their clinical utility and state-of-the-art position in the validation process. The initial search yielded 1078 original studies, of which 420 were assessed for eligibility. A total of 320 studies were included in the final synthesis. A Development, Evaluation and Application Chart (DEAC) of all biomarkers was developed. Most studies focus on identifying new biomarkers and search for relations between these biomarkers and traditional molecular characteristics. Biomarkers are usually investigated in only one study (68.8%). Only 9.8% of all biomarkers was investigated in more than five studies. Circulating tumor cells, gene expression within tumor cells and the concentration of secreted proteins are the most frequently investigated biomarkers in liquid biopsies. However, there is a lack of studies focusing on identifying the clinical utility of these biomarkers, by which the additional value still seems to be limited according to the investigated evidence.
AB - Reviews on circulating biomarkers in breast cancer usually focus on one single biomarker or a selective group of biomarkers. An overview summarizing the discovery and evaluation of all blood-based biomarkers in metastatic breast cancer is lacking. This systematic review aims to identify the available evidence of known blood-based biomarkers in metastatic breast cancer, regarding their clinical utility and state-of-the-art position in the validation process. The initial search yielded 1078 original studies, of which 420 were assessed for eligibility. A total of 320 studies were included in the final synthesis. A Development, Evaluation and Application Chart (DEAC) of all biomarkers was developed. Most studies focus on identifying new biomarkers and search for relations between these biomarkers and traditional molecular characteristics. Biomarkers are usually investigated in only one study (68.8%). Only 9.8% of all biomarkers was investigated in more than five studies. Circulating tumor cells, gene expression within tumor cells and the concentration of secreted proteins are the most frequently investigated biomarkers in liquid biopsies. However, there is a lack of studies focusing on identifying the clinical utility of these biomarkers, by which the additional value still seems to be limited according to the investigated evidence.
KW - Blood-based biomarkers
KW - Circulating biomarkers
KW - Circulating tumor cells (CTCs)
KW - Development evaluation and application chart (DEAC)
KW - Developmental stages
KW - Liquid biopsy
KW - Metastatic breast cancer
KW - Utility
UR - http://www.scopus.com/inward/record.url?scp=85012088679&partnerID=8YFLogxK
U2 - 10.3390/ijms18020363
DO - 10.3390/ijms18020363
M3 - Review article
C2 - 28208771
AN - SCOPUS:85012088679
SN - 1661-6596
VL - 18
JO - International journal of molecular sciences
JF - International journal of molecular sciences
IS - 2
M1 - 363
ER -