title: Evaluation of bioartificial renal tubule device prepared with lifespan-extended human renal proximal tubular epithelial cells.
abstract: BACKGROUND
  Acute kidney injury (AKI), accompanied by the development of systemic inflammatory response syndrome and multiorgan dysfunction syndrome, is associated with a high risk of death. Bioartificial renal tubule device (BTD) is a cell therapy that improves the conditions common to artificial kidney recipients treated for kidney diseases. In this paper, we describe the establishment of BTD with lifespan-extended human renal proximal tubular epithelial cells.
  
  
  METHODS
  AKI goats were established by performing bilateral nephrectomy followed by lipopolysaccharide administration. The AKI goats were treated with BTD or sham-BTD, and the two groups of animals were compared by measuring the respective life spans and the levels of blood urea nitrogen, creatinine, alanine aminotransferase, aspartate aminotransferase, lactate dehydrogenase and serum electrolytes. The expression levels of inflammatory cytokines were detected by reverse transcription-polymerase chain reaction, and plasma interleukin (IL)-6 levels were measured by enzyme-linked immunosorbent assay.
  
  
  RESULTS
  The life span of AKI goats was extended: the lifetime with the BTD treatment compared with sham-BTD. BTD and sham-BTD showed a similar degree of small solute clearance. The expression levels of inflammatory cytokines and plasma IL-6 levels were decreased by the BTD treatment.
  
  
  CONCLUSIONS
  BTD treatment results in less damage from endotoxin shock and increased life span in AKI goats. These results suggest that BTD may be a useful component of bioartificial kidneys and should be considered in the next generation of renal replacement therapies.
authors.affiliation: Division of Nephrology and Metabolism, Department of Medicine, Tokai University School of Medicine, Isehara, Japan. asait@is.icc.u-tokai.ac.jp
authors.forename: Akira
authors.initials: A
authors.lastname: Saito
authors.forename: Kaichiro
authors.initials: K
authors.lastname: Sawada
authors.forename: Satoshi
authors.initials: S
authors.lastname: Fujimura
authors.forename: Hajime
authors.initials: H
authors.lastname: Suzuki
authors.forename: Takashi
authors.initials: T
authors.lastname: Hirukawa
authors.forename: Ryoko
authors.initials: R
authors.lastname: Tatsumi
authors.forename: Genta
authors.initials: G
authors.lastname: Kanai
authors.forename: Hiroo
authors.initials: H
authors.lastname: Takahashi
authors.forename: Takayo
authors.initials: T
authors.lastname: Miyakogawa
authors.forename: Noriyuki
authors.initials: N
authors.lastname: Sanechika
authors.forename: Masafumi
authors.initials: M
authors.lastname: Fukagawa
authors.forename: Takatoshi
authors.initials: T
authors.lastname: Kakuta
mesh_terms: D058186:Acute Kidney Injury / Q000235:genetics / Q000503:physiopathology / Q000628:therapy; D000818:Animals; D021522:Bioartificial Organs; D015415:Biomarkers / Q000097:blood; D016922:Cellular Senescence; D016207:Cytokines / Q000096:biosynthesis / Q000235:genetics; D004195:Disease Models, Animal; D004847:Epithelial Cells / Q000166:cytology / Q000502:physiology; D006041:Goats; D006801:Humans; D015850:Interleukin-6 / Q000097:blood; D007677:Kidney Function Tests; D007687:Kidney Tubules, Proximal / Q000166:cytology* / Q000502:physiology*; D008297:Male
chemical_list: D015415:Biomarkers; D016207:Cytokines; D015850:Interleukin-6