A Novel Dorsal Slit Approached Non-Ischemic Partial Nephrectomy Method for a Renal Tissue Regeneration in a Mouse Model

Authors
Chun, So YoungKim, Dae HwanKim, Jeong ShikKim, Hyun TaeYoo, Eun SangChung, Jae-WookHa, Yun-SokSong, Phil HyunJoung, Yoon KiHan, Dong KeunChung, Sung KwangKim, Bum SooKwon, Tae Gyun
Issue Date
2018-08
Publisher
KOREAN TISSUE ENGINEERING REGENERATIVE MEDICINE SOC
Citation
TISSUE ENGINEERING AND REGENERATIVE MEDICINE, v.15, no.4, pp.453 - 466
Abstract
Kidney ischemia-reperfusion (IR) via laparotomy is a conventional method for kidney surgery in a mouse model. However, IR, an invasive procedure, can cause serious acute and chronic complications through apoptotic and inflammatory pathways. To avoid these adverse responses, a Non-IR and dorsal slit approach was designed for kidney surgery. Animals were divided into three groups, 1) sham-operated control; 2) IR, Kidney IR via laparotomy; and 3) Non-IR, Non-IR and dorsal slit. The effects of Non-IR method on renal surgery outcomes were verified with respect to animal viability, renal function, apoptosis, inflammation, fibrosis, renal regeneration, and systemic response using histology, immunohistochemistry, real-time polymerase chain reaction, serum chemistry, terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) staining, and Masson's trichrome staining. The Non-IR group showed 100% viability with mild elevation of serum blood urea nitrogen and creatinine values at day 1 after surgery, whereas the IR group showed 20% viability and lethal functional abnormality. Histologically, renal tubule epithelial cell injury was evident on day 1 in the IR group, and cellular apoptosis enhanced TUNEL-positive cell number and Fas/caspase-3 and KIM-1/NGAL expression. Inflammation and fibrosis were high in the IR group, with enhanced CD4/CD8-positive T cell infiltration, inflammatory cytokine secretion, and Masson's trichrome stain-positive cell numbers. The Non-IR group showed a suitable microenvironment for renal regeneration with enhanced host cell migration, reduced immune cell influx, and increased expression of renal differentiation-related genes and anti-inflammatory cytokines. The local renal IR influenced distal organ apoptosis and inflammation by releasing circulating pro-inflammatory cytokines. The Non-IR and dorsal slit method for kidney surgery in a mouse model can be an alternative surgical approach for researchers without adverse reactions such as apoptosis, inflammation, fibrosis, functional impairment, and systemic reactions.
Keywords
CELL-DEATH; APOPTOSIS; EXPRESSION; CELL-DEATH; APOPTOSIS; EXPRESSION; Ischemia-reperfusion; Renal regeneration; Inflammation; Apoptosis; Fibrosis
ISSN
1738-2696
URI
https://pubs.kist.re.kr/handle/201004/121119
DOI
10.1007/s13770-018-0123-0
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KIST Article > 2018
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