Role of nuclear factor kappa beta, tumor necrosis factor α, and cyclooxygenase-2 in preterm labor

  • Syamsul B. Riva'i Department of Obstetrics and Gynecology, Arifin Achmad Regional Hospital, Riau University
  • Eryati Darwin Department of Pathology Anatomy, Andalas University, Padang
  • Ellyza Nasrul Department of Clinical Pathology, Andalas University, Padang
  • Jusuf S. Effendi Department of Obstetrics and Gynecology, Padjadjaran University, Bandung
Keywords: COX-2, NF-κB, TNFɑ, preterm labor
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Abstract

Background: The pathway of tumor necrosis factor alpha (TNFα), nuclear factor kappa beta (NF-κB), and cyclooxygenase-2 (COX-2) activation in releasing prostaglandins is suggested to be crucial for initiating labor in the pathogenesis of preterm labor. The aim of the study was to know whether there were mean differences of NF-κB, TNFα, and COX-2 expressions between preterm and term labor and also to know the correlation among them in preterm labor.

Methods: A case-control study was performed from May 2013 to February 2014 in Arifin Achmad Hospital, Pekanbaru. There were 30 subjects with preterm labor as cases and 30 with normal labor as controls. All subjects had singleton gestation with maximum parity was three, age limit of 35 year-old, and spontaneous labor in both groups. Placental tissue was collected from all subjects and evaluated with hematoxylin eosin staining. The expressions of TNFα, NF-κB, and COX-2 in the tissue were assessed with immunohistochemical staining by counting the percentage of smeared cells by two experts. The expressions of TNFα, NF-κB, and COX-2 between case and control were compared using t-test and the correlation was analyzed with Pearson correlation coefficient.

Results: Mean (SD) of expressions of TNFα (93.05% [12.68] vs 49.11% [27.33]), NF-κB (42.46% [27.29] vs 13.66% [17.77]), and COX-2 (88.75% [10.86] vs 46% [30.36]) were significantly higher in the preterm labor compared to term labor (p = 0.001). There was significant correlation between TNFα and NF-κB expression (r = 0.385; p = 0.036) and no correlation was found between NF-κB and COX-2 (p = 0.982) in preterm labor.

Conclusion: High expressions of TNFα, NF-κB, and COX-2 in preterm labor showed to contribute in the onset of preterm labor. High TNFα may suggest that infection was a leading cause of preterm labor. This is supported with an increase in NF-κB activation will increase COX-2 and subsequently prostaglandins that result in premature labor.

Author Biography

Syamsul B. Riva'i, Department of Obstetrics and Gynecology, Arifin Achmad Regional Hospital, Riau University

Department of Obstetrics & Gynecology

Division of Fetomaternal

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Published
2015-01-27
How to Cite
1.
Riva’i SB, Darwin E, Nasrul E, Effendi JS. Role of nuclear factor kappa beta, tumor necrosis factor α, and cyclooxygenase-2 in preterm labor. Med J Indones [Internet]. 2015Jan.27 [cited 2019Dec.15];23(4):213-7. Available from: http://mji.ui.ac.id/journal/index.php/mji/article/view/1005
Section
Clinical Research