title: Advanced dynamic monitoring of cellular status using label-free and non-invasive cell-based sensing technology for the prediction of anticancer drug efficacy.
abstract: Quantitative evaluation of anticancer drug efficacy using in vitro cell-based assays is useful for cancer patients, particularly those who show unconventional cancer development. Nevertheless, conventional chemosensitivity testing often requires widely used labeling agents and time-consuming laboratory procedures that provide low reliability. Label-free non-invasive cell-based assays are desired for dynamic monitoring of cellular status. This critical review first describes conventional chemosensitivity testing and then advanced label-free cell-based technology used to screen anticancer drugs through dynamic monitoring of cellular status, focusing on dosage and the use of drug-resistant cancer cells. Results from label-free cell-based approaches are compared with those of conventional chemosensitivity testing. The cellular statuses, addressed in terms of respective mechanisms and disadvantages, are extracellular fluxes of proton (H(+)), O(2), and anticancer drugs, cell morphology changes, cell-environment interaction, and mitochondrial membrane potential. Finally, a cell-based systems outlook is presented. This paper represents a step toward efficient and accurate initial screening of anticancer drugs and development of compounds and their combined use to achieve pharmacodynamic and pharmacokinetic interactions, and chemotherapy evaluation of particular anticancer drugs for individual patients.
authors.affiliation: Graduate School of Bioresource and Bioenvironmental Sciences, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan. ona@agr.kyushu-u.ac.jp
authors.forename: Toshihiro
authors.initials: T
authors.lastname: Ona
authors.forename: Junko
authors.initials: J
authors.lastname: Shibata
mesh_terms: D000970:Antineoplastic Agents / Q000627:therapeutic use*; D017209:Apoptosis / Q000187:drug effects; D015374:Biosensing Techniques / Q000295:instrumentation / Q000379:methods*; D018929:Cell Culture Techniques / Q000295:instrumentation / Q000379:methods; D016903:Drug Monitoring / Q000295:instrumentation / Q000379:methods*; D004867:Equipment Design; D006801:Humans; D009369:Neoplasms / Q000188:drug therapy; D014407:Tumor Cells, Cultured / Q000187:drug effects
chemical_list: D000970:Antineoplastic Agents