Anatomy and Cell Biology

  • 제44권2호
  • /
  • Pages.85-97
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  • 2011
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  • 2093-3665(pISSN)
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  • 2093-3673(eISSN)
대한해부학회 (Korean Association of Anatomists)
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DOI QR코드

DOI QR Code

Expression of ciliary neurotrophic factor and its receptor in experimental obstructive nephropathy

  • Lee, Byoung-Seung (Department of Anatomy, College of Medicine, The Catholic University of Korea) ;
  • Choi, Jae-Youn (Department of Anatomy, College of Medicine, The Catholic University of Korea) ;
  • Cha, Jung-Ho (Department of Anatomy, College of Medicine, The Catholic University of Korea)
  • 발행 : 2011.06.30
⟨ 이전 논문 다음 논문 ⟩

초록

Ciliary neurotrophic factor (CNTF) is well known as a growth/survival factor of neuronal tissue. We investigated the expression of CNTF and its specifi c receptor alpha (CNTFR${\alpha}$) in a unilateral ureteral obstruction (UUO) model. Complete UUO was produced by left ureteral ligation in Sprague-Dawley rats. The animals were sacrificed on days 1, 3, 5, 7, 14, 21, and 28 aft er UUO. Th e kidneys were fi xed, and processed for both immunohistochemistry and in situ hybridization. CNTF immunoreactivity in sham-operated kidneys was observed only in the descending thin limb (DTL) of the loop of Henle. In UUO kidneys, CNTF expression was induced in the S3 segment (S3s) of the proximal tubule from day 1, and progressively expanded into the entire S3s and a part of the convoluted proximal tubules, distal tubules (DT), and glomerular parietal epithelium up to day 7. Upregulated CNTF expression was maintained to day 28. From day 14, the inner medullary collecting duct showed weak CNTF immunoreactivity. Th e CNTFR${\alpha}$ mRNA hybridization signal in sham-operated kidneys was weakly detected in the DTL, DT, medullary thick ascending limb, and in a few S3s cells. After UUO, CNTFR${\alpha}$ mRNA expression increased progressively in both the renal cortex and the medulla up to day 7 and increased expression was maintained until day 28. Th e results suggest that the S3s may be the principal induction site for CNTF in response to renal injury, and that CNTF may play a role in chronic renal injury.

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참고문헌

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피인용 문헌

  1. Current Knowledge of IL-6 Cytokine Family Members in Acute and Chronic Kidney Disease vol.7, pp.1, 2011, https://doi.org/10.3390/biomedicines7010019