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Article

Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions

  • Authors:
    • Chunhong Liu
    • Feng Xing
    • Yuanying He
    • Shanshan Zong
    • Chengfeng Luo
    • Chunqing Li
    • Tao Duan
    • Kai Wang
    • Qian Zhou
  • View Affiliations / Copyright

    Affiliations: Department of Obstetrics and Gynecology, Shanghai Tenth People's Hospital, Tongji University, Shanghai 200072, P.R. China, Department of Obstetrics and Gynecology, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 200040, P.R. China, Clinical and Translational Research Center, Shanghai First Maternity and Infant Hospital, Tongji University, Shanghai 200040, P.R. China
  • Pages: 2937-2944
    |
    Published online on: July 16, 2018
       https://doi.org/10.3892/mmr.2018.9289
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Abstract

Aberrant gene expression during placental development may affect fetal growth and contribute to preeclampsia. The high‑temperature requirement A (HTRA) family of proteins are serine proteases that may serve in the quality control of misfolded or mislocalized proteins. Recently, the potential involvement of HTRA1 and HTRA4 in the normal development of the placenta and in the pathogenesis of preeclampsia has been reported. The present study collected placental tissues from patients with severe preeclampsia and gestational age‑matched control samples. The expression of HTRA1 and HTRA4 was analyzed using reverse transcription‑quantitative polymerase chain reaction, western blotting and immunohistochemistry. The human trophoblast line HTR‑8 was transfected with HTRA1 or HTRA4, and cell function was assessed. The present study also detected the expression of HTRA1 and HTRA4 in HTR‑8/SVneo transfected cells under hypoxia (1% O2) and further studied the effects of hypoxia on HTR‑8 cell migration. HTRA1 and HTRA4 were mainly localized to the cytoplasm of syncytiotrophoblasts. The expression levels of the two genes were elevated in the placental tissues of patients with severe preeclampsia. Finally, it was determined in vitro that ectopic expression of HTRA1 and HTRA4 significantly attenuated HTR‑8 cell migration, and elevated HTRA1 limited HTR‑8 cell growth. Under hypoxic conditions, the expression levels of HTRA1 and HTRA4 improved significantly. It was hypothesized that the aberrant expression of HTRA1 or HTRA4 may be involved in the onset of preeclampsia, and increased HTRA1 or HTRA4 expression may affect trophoblast functions.
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Copy and paste a formatted citation
Spandidos Publications style
Liu C, Xing F, He Y, Zong S, Luo C, Li C, Duan T, Wang K and Zhou Q: Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions. Mol Med Rep 18: 2937-2944, 2018.
APA
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C. ... Zhou, Q. (2018). Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions. Molecular Medicine Reports, 18, 2937-2944. https://doi.org/10.3892/mmr.2018.9289
MLA
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C., Duan, T., Wang, K., Zhou, Q."Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions". Molecular Medicine Reports 18.3 (2018): 2937-2944.
Chicago
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C., Duan, T., Wang, K., Zhou, Q."Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions". Molecular Medicine Reports 18, no. 3 (2018): 2937-2944. https://doi.org/10.3892/mmr.2018.9289
Copy and paste a formatted citation
x
Spandidos Publications style
Liu C, Xing F, He Y, Zong S, Luo C, Li C, Duan T, Wang K and Zhou Q: Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions. Mol Med Rep 18: 2937-2944, 2018.
APA
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C. ... Zhou, Q. (2018). Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions. Molecular Medicine Reports, 18, 2937-2944. https://doi.org/10.3892/mmr.2018.9289
MLA
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C., Duan, T., Wang, K., Zhou, Q."Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions". Molecular Medicine Reports 18.3 (2018): 2937-2944.
Chicago
Liu, C., Xing, F., He, Y., Zong, S., Luo, C., Li, C., Duan, T., Wang, K., Zhou, Q."Elevated HTRA1 and HTRA4 in severe preeclampsia and their roles in trophoblast functions". Molecular Medicine Reports 18, no. 3 (2018): 2937-2944. https://doi.org/10.3892/mmr.2018.9289
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