Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus

  • Authors:
    • Dae Young Yoo
    • Dae Won Kim
    • Hyun Jung Kwon
    • Hyo Young Jung
    • Sung Min Nam
    • Jong Whi Kim
    • Jin Young Chung
    • Moo‑Ho Won
    • Yeo Sung Yoon
    • Soo Young Choi
    • In Koo Hwang
  • View Affiliations

  • Published online on: July 12, 2017     https://doi.org/10.3892/mmr.2017.6946
  • Pages: 3427-3432
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Abstract

Post‑translational modifications have been associated with developmental and aging processes, as well as in the pathogenesis of certain diseases. The present study aimed to investigate the effects of small ubiquitin‑like modifier 1 (SUMO‑1) on hippocampal dependent memory function, cell proliferation and neuroblast differentiation. To facilitate the delivery of SUMO‑1 into hippocampal neurons, a transactivator of transcription (Tat)‑SUMO‑1 fusion protein was constructed and mice were divided into two groups: A vehicle (Tat peptide)‑treated group and a Tat‑SUMO‑1‑treated group. The vehicle or Tat‑SUMO‑1 was administered intraperitoneally to 7‑week‑old mice once daily for 3 weeks, and a novel object recognition test was conducted following the final treatment; the animals were sacrificed 2 h following the test for further analysis. Administration of Tat‑SUMO‑1 significantly decreased exploration of a new object in a novel object recognition test compared with mice in the vehicle‑treated group. In addition, cell proliferation and neuroblast differentiation analyses (based on Ki67 and doublecortin immunohistochemistry, respectively) revealed that the administration of Tat‑SUMO‑1 significantly reduced cell proliferation and neuroblast differentiation in the dentate gyrus. These results suggested that chronic supplementation of Tat‑SUMO‑1 affects hippocampal functions by decreasing cell proliferation and neuroblast differentiation in the mouse dentate gyrus.
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September-2017
Volume 16 Issue 3

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

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Spandidos Publications style
Yoo D, Kim D, Kwon H, Jung H, Nam S, Kim J, Chung J, Won MH, Yoon Y, Choi S, Choi S, et al: Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus. Mol Med Rep 16: 3427-3432, 2017.
APA
Yoo, D., Kim, D., Kwon, H., Jung, H., Nam, S., Kim, J. ... Hwang, I. (2017). Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus. Molecular Medicine Reports, 16, 3427-3432. https://doi.org/10.3892/mmr.2017.6946
MLA
Yoo, D., Kim, D., Kwon, H., Jung, H., Nam, S., Kim, J., Chung, J., Won, M., Yoon, Y., Choi, S., Hwang, I."Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus". Molecular Medicine Reports 16.3 (2017): 3427-3432.
Chicago
Yoo, D., Kim, D., Kwon, H., Jung, H., Nam, S., Kim, J., Chung, J., Won, M., Yoon, Y., Choi, S., Hwang, I."Chronic administration of SUMO‑1 has negative effects on novel object recognition memory as well as cell proliferation and neuroblast differentiation in the mouse dentate gyrus". Molecular Medicine Reports 16, no. 3 (2017): 3427-3432. https://doi.org/10.3892/mmr.2017.6946