https://www.selleckchem.com/products/frax597.html In this paper, novel rapid cancer imaging techniques using activatable fluorescent probes are showcased, whose fluorescence characteristics are significantly altered to distinguish between cancer sites, which was developed by using unique probe precision design methods established by the authors. The strategy is to develop probes that target enzymes whose activity has been reported to be enhanced in cancer sites, or to find the most suitable probes from a group of developed probes by screening using actual clinical specimens. Several medical technologies have been developed that enable selective detection of cancer sites within minutes by simply spraying the probes on suspected cancer sites. In addition, it has recently become clear that simultaneous imaging of multiple target enzyme activities can not only visualize the lesion site but also distinguish between malignant and benign lesions. It is highly expected that the day will soon come when surgeons will be able to clearly determine the cancer site to be treated and perform precise endoscopic or open-stomach surgery.Fluorescence imaging is a very useful method for visualizing molecules and cells, but when tissues are measured", decrease in resolution due to increased scattering and absorption of light in proportion to tissue thickness (problem 1)" and "decrease in signal to noise(S/N)ratio of positive signal due to tissue autofluorescence(problem 2)"are problems to be solved. In this paper, to develop a technology to improve the analysis accuracy of drug efficacy mechanisms in preclinical trial of drug discovery, we performed development of a supporting technology for drug discovery of antibody drug conjugates by imaging living tumor tissues, while solving problem 1. This technology is expected to lead to an improvement in the success rate of clinical trials. Next, to develop a diagnostic method to predict the response to neoadjuvant chemotherapy with antibody dr