This volume discusses the latest techniques used to identify cancer drug resistance determinants at the molecular, cellular, and functional levels. Chapters in this book cover up-to-date topics including tumor-microenvironment cell co-culture methods and microfluidics systems; workflows for functional assessment of drug resistance in vitro and in vivo; quantitative techniques for identifying quiescent blood-flow circulating cells; and single-cell characterization methods, such as mass cytometry. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls. Cutting-edge and practical, Cancer Drug Resistance: Methods and Protocols is a valuable resource for all scientists and researchers who are looking to learn more about the latest developments in understanding and overcoming anticancer drug resistance.