Abstract:
The human epidermal growth factor receptor 2 (HER-2) protein is a member of the epidermal growth factor
receptor (EGFR or ErbB) family and is a transmembrane tyrosine kinase receptor. HER-2 is highly regulated
in ovarian, lung, gastric, oral, and breast cancers. The low specificity, complexity, expensiveness and the lack
of sensitivity are essential restrictions in traditional diagnosis methods such as FISH, immunohistochemistry
and PCR and these disadvantages led to the need for more studies on alternative methods. Biosensor
technology has greatly affected the quality of human life owing to its features including, sensitivity,
specificity, and rapid diagnosis and monitoring of different patient diseases. In this review article, we
examine various biosensors, considering that they have been categorized based on the transducers used
including piezoelectric biosensors, optical sensors such as fluorescence and surface plasmon resonance,
and electrochemical types for the diagnosis of HER-2 and the effectiveness of some drugs against that.
Attention to developing some types of biosensor devices such as colorimetric biosensors for HER-2
detection can be an important point in future studies
