SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion

  • Authors:
    • Hyo Young Jung
    • Dae Won Kim
    • Hyun Jung Kwon
    • Dae Young Yoo
    • In Koo Hwang
    • Moo‑Ho Won
    • Tack‑Geun Cho
    • Soo Young Choi
    • Seung Myung Moon
  • View Affiliations

  • Published online on: April 28, 2017     https://doi.org/10.3892/mmr.2017.6527
  • Pages: 4312-4318
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Abstract

The present study investigated the protective effects of small ubiquitin-like modifier 1 (SUMO-1) on spinal cord ischemic damage in rabbits. A trans‑activator of transcription (Tat)‑SUMO‑1 fusion protein was prepared, and transient spinal cord ischemia was induced by occlusion of the abdominal aorta for 15 min. Vehicle (glycerol) or 1 mg/kg Tat-1-SUMO‑1 was administered intraperitoneally to the rabbits immediately following ischemia/reperfusion. Administration of Tat-SUMO-1 did not lead to significant alterations in arterial blood gases [partial pressure (Pa)CO2 and PaO2], pH, or blood glucose levels prior to ischemia, 10 min after occlusion or 10 min after reperfusion. Mean arterial pressure was significantly decreased only during occlusion. Motor behaviors were assessed at 24, 48 and 72 h after ischemia/reperfusion using Tarlov's criteria. Administration of Tat‑SUMO‑1 significantly improved Tarlov scores 24 h after ischemia/reperfusion and the number of cresyl violet positive neurons was significantly increased in the ventral horn of the spinal cord compared with the vehicle‑treated group. However, Tarlov scores were consistently decreased at 48 and 72 h after ischemia/reperfusion in the Tat‑SUMO‑1‑treated group, and Tarlov scores and the number of cresyl violet positive neurons were not significantly different between the vehicle‑ and Tat‑SUMO‑1‑treated groups after 72 h. Tat-SUMO‑1 administration significantly ameliorated a reduction in Cu, Zn‑superoxide dismutase activity and an increase in lipid peroxidation 24 h after ischemia/reperfusion; however, these effects were not present at 72 h. These results suggested that Tat‑SUMO‑1 may delay, although not protect against, neuronal death by regulating oxidative stress in the ventral horn of the spinal cord and that combination therapy using Tat‑SUMO‑1 with other compounds may provide a therapeutic approach to decrease neuronal damage.
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June-2017
Volume 15 Issue 6

Print ISSN: 1791-2997
Online ISSN:1791-3004

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Spandidos Publications style
Jung HY, Kim DW, Kwon HJ, Yoo DY, Hwang IK, Won MH, Cho TG, Choi SY and Moon SM: SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion. Mol Med Rep 15: 4312-4318, 2017
APA
Jung, H.Y., Kim, D.W., Kwon, H.J., Yoo, D.Y., Hwang, I.K., Won, M. ... Moon, S.M. (2017). SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion. Molecular Medicine Reports, 15, 4312-4318. https://doi.org/10.3892/mmr.2017.6527
MLA
Jung, H. Y., Kim, D. W., Kwon, H. J., Yoo, D. Y., Hwang, I. K., Won, M., Cho, T., Choi, S. Y., Moon, S. M."SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion". Molecular Medicine Reports 15.6 (2017): 4312-4318.
Chicago
Jung, H. Y., Kim, D. W., Kwon, H. J., Yoo, D. Y., Hwang, I. K., Won, M., Cho, T., Choi, S. Y., Moon, S. M."SUMO-1 delays neuronal damage in the spinal cord following ischemia/reperfusion". Molecular Medicine Reports 15, no. 6 (2017): 4312-4318. https://doi.org/10.3892/mmr.2017.6527