title: Analysis of transcriptomic and proteomic profiles demonstrates improved Madin-Darby canine kidney cell function in a renal microfluidic biochip.
abstract: We have evaluated the influence of the microfluidic environment on renal cell functionality. For that purpose, we performed a time lapse transcriptomic and proteomic analysis in which we compared gene and protein expressions of Madin-Darby canine kidney cells after 24 h and 96 h of culture in both microfluidic biochips and plates. The transcriptomic and proteomic integration revealed that the ion transporters involved in calcium, phosphate, and sodium homoeostasis and several genes involved in H(+) transporters and pH regulation were up-regulated in microfluidic biochips. Concerning drug metabolism, we found Phase I (CYP P450), Phase II enzymes (GST), various multidrug resistance genes (MRP), and Phase III transporters (SLC) were also up-regulated in the biochips. Furthermore, the study shows that those inductions were correlated with the induction of the Ahr and Nrf-2 dependent pathways, which results in a global cytoprotective response induced by the microenvironment. However, there was no apoptosis situation or cell death in the biochips. Microfluidic biochips may thus provide an important insight into exploring xenobiotic injury and transport modifications in this type of bioartificial microfluidic kidney. Finally, the investigation demonstrated that combining the transcriptomic and proteomic analyses obtained from a cell "on chip" culture would provide a pertinent new tool in the mechanistic interpretation of cellular mechanisms for predicting kidney cell toxicity and renal clearance in vitro.
authors.affiliation: CNRS UMR 6600, Laboratoire de Biomécanique et Bio Ingénierie, Université de Technologie de Compiègne, France.
authors.forename: Leila Choucha
authors.initials: LC
authors.lastname: Snouber
authors.forename: Franck
authors.initials: F
authors.lastname: Letourneur
authors.forename: Philippe
authors.initials: P
authors.lastname: Chafey
authors.forename: Cedric
authors.initials: C
authors.lastname: Broussard
authors.forename: Matthieu
authors.initials: M
authors.lastname: Monge
authors.forename: Cécile
authors.initials: C
authors.lastname: Legallais
authors.forename: Eric
authors.initials: E
authors.lastname: Leclerc
mesh_terms: D000818:Animals; D017209:Apoptosis; D001692:Biological Transport; D018929:Cell Culture Techniques / Q000295:instrumentation / Q000379:methods*; D002453:Cell Cycle; D002460:Cell Line; D049109:Cell Proliferation; D004285:Dogs; D020869:Gene Expression Profiling; D005786:Gene Expression Regulation; D007668:Kidney / Q000737:chemistry / Q000166:cytology* / Q000378:metabolism*; D044085:Microfluidics / Q000379:methods*; D004364:Pharmaceutical Preparations / Q000378:metabolism; D040901:Proteomics
chemical_list: D004364:Pharmaceutical Preparations