Differential expression and methylation of integrin subunit alpha 11 and thrombospondin in the amnion of preterm birth

Jae Young Yoo, Young Ah You, Eun Jin Kwon, Mi Hye Park, Sunah Shim, Young Ju Kim

Research output: Contribution to journalArticlepeer-review

6 Scopus citations


Objective This study aimed to investigate the association between preterm birth and epigenetic mechanisms in the amnion. Methods We examined the association between differentially methylated regions (DMRs) and differentially expressed genes (DEG) using a cytosine-phosphate-guanine methylation array and whole-transcriptome sequencing from the amnion (preterm birth, n=5; full term, n=5). We enrolled 35 participants for mRNA expression analysis and pyrosequencing: 16 full-term and 19 preterm subjects. We compared the association of integrin subunit alpha 11 (ITGA11) and thrombospondin 2 (THBS2) gene methylation status with mRNA expression in the amnion. Results In the preterm birth group, methylation of ITGA11 and THBS2 genes was significantly lower (ITGA11 gene: 60.30% vs. 73.16%, P < 0.05; THBS2 gene: 64.59% vs. 73.16%, P < 0.05), and the expression of the genes was significantly higher than that in the full-term group (ITGA11 gene: 14.20 vs. 1.57, P < 0.01; THBS2 gene: 1.18 vs. 10.34, P < 0.05). Conclusion Methylation of the ITGA11 and THBS2 genes in the amnion was associated with preterm birth. Thus, ITGA11 and THBS2 gene methylation status in the amnion may be valuable in explaining the mechanism underlying preterm birth.

Original languageEnglish
Pages (from-to)565-574
Number of pages10
JournalObstetrics and Gynecology Science
Issue number5
StatePublished - 2018

Bibliographical note

Publisher Copyright:
© 2018 Korean Society of Obstetrics and Gynecology.


  • Gene expression
  • ITGA11 protein
  • MRNA
  • Methylation
  • Preterm birth
  • Thrombospondin 2


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