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In vivo imaging of insulin‐secreting human pancreatic ductal cells using MRI reporter gene technique: A feasibility study
Author(s) -
Wu MenqRong,
Hsiao JongKai,
Liu HonMan,
Huang YiYou,
Tseng YuJui,
Chou PiTai,
Weng TeI,
Yang ChungYi
Publication year - 2019
Publication title -
magnetic resonance in medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.696
H-Index - 225
eISSN - 1522-2594
pISSN - 0740-3194
DOI - 10.1002/mrm.27749
Subject(s) - in vivo , ductal cells , reporter gene , in vitro , cell culture , chemistry , pancreas , gene expression , endocrinology , biology , medicine , microbiology and biotechnology , gene , biochemistry , genetics
Purpose The purpose of this study was to investigate the feasibility of in vivo imaging of human pancreatic ductal cells by OATP1B3 reporter gene under MRI. Methods A human cell line (PANC‐1) derived from the pancreatic ductal epithelium was used in this study. After transduction of OATP1B3, the cellular physiological functions and the ability of intracellular uptake of the MRI contrast medium (Gd‐EOB‐DTPA) were examined. Induced differentiation of the PANC‐1 cells into hormone‐secreting cells were performed to simulate pancreatic β‐like cells. The hormone‐secreting cells were implanted into rats and in vivo MRI was evaluated. Results The mRNA and proteins of OATP1B3 were highly expressed. No significant change of cellular physiological functions was found after the expression. After induced differentiation, the hormone secretion capacities of the OATP1B3‐expressing PANC‐1 cells were confirmed. Intra‐cellular uptake of Gd‐EOB‐DTPA was determined in vitro by inductively coupled plasma mass spectrometry and MRI. In vivo MRI of the OATP1B3‐expressing xenograft revealed an increased signal intensity after contrast enhancement. Conclusion OATP1B3 can be used as a safe and feasible in vivo MRI gene reporter for human pancreatic ductal cells.