| Platelet-derived growth factor (PDGF-BB), a significant serum cytokine, is an important protein biomarker in
diagnosis and recognition of cancer, which straightly rolled in proceeding of various cell transformations, including tumor growth and its development. Fibrosis, atherosclerosis are certain appalling diseases, which PDGFBB is near to them. Generally, the expression amount of PDGF-BB increases in human life-threatening tumors
serving as an indicator for tumor angiogenesis. Thus, identification and quantification of PDGF-BB in biomedical
fields are particularly important. Affinity chromatography, immunohistochemical methods and enzyme-linked
immunosorbent assay (ELISA), conventional methods for PDGF-BB detection, requiring high-cost and complicated instrumentation, take too much time and offer deficient sensitivity and selectivity, which restrict their
usage in real applications. Hence, it is essential to design and build enhanced systems and platforms for the
recognition and quantification of protein biomarkers. In the past few years, biosensors especially aptasensors
have been received noticeable attention for the detection of PDGF-BB owing to their high sensitivity, selectivity,
accuracy, fast response, and low cost. Since the role and importance of developing aptasensors in cancer diagnosis is undeniable. In this review, optical and electrochemical aptasensors, which have been applied by many
researchers for PDGF-BB cancer biomarker detection, have been mentioned and merits and demerits of them
have been explained and compared. Efforts related to design and development of aptamer-based biosensors
using nanoparticles for sensitive and selective detection of PDGF-BB have been reviewed considering: Aptamer
importance as recognition elements, principal, application and the recent improvements and developments of
aptamer based optical and electrochemical methods. In addition, commercial biosensors and future perspectives
for rapid and on-site detection of PDGF-BB have been summarized. |