Protocol for detecting substrates in living cells by targeted molecular probes through hyperpolarized Xe MRI.

STAR Protoc

Key Laboratory of Magnetic Resonance in Biological Systems, State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, National Center for Magnetic Resonance in Wuhan, Wuhan Institute of Physics and Mathematics, Innovation Academy for Precision Measurement Science and Technology, Chinese Academy of Sciences-Wuhan National Laboratory for Optoelectronics, Wuhan 430071, P. R. China; University of Chinese Academy of Sciences, Beijing 100049, P. R. China; Optics Valley Laboratory, Hubei 430074, P.R. China; Key Laboratory of Biomedical Engineering of Hainan Province, School of Biomedical Engineering, Hainan University, Haikou 570228, P. R. China. Electronic address:

Published: September 2022

Due to limited detection sensitivity and contrast limitation, imaging substrates with Xe MRI in living cells is still a challenge. Here, we present an effective protocol to detect and image substrates in human lung cancer cells A549 with hyperpolarized Xe MRI. This protocol was optimized for a cryptophane-based probe sensitive to biothiols and can be expanded to other Xe-based probes to detect potential biomarkers in other mammalian cells. For complete details on the use and execution of this protocol, please refer to Zeng et al. (2021).

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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9249822PMC
http://dx.doi.org/10.1016/j.xpro.2022.101499DOI Listing

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