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Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis

  • Authors:
    • Feng Jin
    • Chong Qiao
    • Nannan Luan
    • Hui Li
  • View Affiliations / Copyright

    Affiliations: Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang, Liaoning 110004, P.R. China
    Copyright: © Jin et al. This is an open access article distributed under the terms of Creative Commons Attribution License.
  • Pages: 949-957
    |
    Published online on: February 26, 2016
       https://doi.org/10.3892/ijmm.2016.2508
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Abstract

Inadequate trophoblast invasion and increased trophoblast apoptosis cause serious pregnancy complications. Pleckstrin homology-like domain, family Α, member 2 (PHLDA2) has been linked to fetal size at birth and growth restriction in a number of studies. However, the impact of PHLDA2 on trophoblast function had not been studied previously, to the best of our knowledge. In the present study, immunofluorescence staining demonstrated that primary trophoblasts isolated from placental villous tissues were positive for cytokeratin 18 (CK18), vimentin and human placental lactogen (hPL). JEG-3 cells and primary trophoblasts were infected with lentivirus overexpressing PHLDA2. RT-qPCR and western blot analysis detected high levels of PHLDA2. A Cell Counting Kit-8 (CCK-8) assay showed that PHLDA2 overexpression inhibited trophoblast proliferation. In addition, PHLDA2 significantly induced apoptosis, as evidenced by Annexin V-FITC/propidium iodide (PI) and Hoechst staining, along with activation of Bax and caspase-3 and also decreased Bcl-2 expression. Further investigation showed that PHLDA2 effectively induced reactive oxygen species (ROS) generation, caused cytochrome c release from the mitochondria into the cytosol and decreased mitochondrial membrane potential. PHLDA2 likely induced apoptosis through the mitochondrial pathway. Wound healing and Transwell assays indicated that PHLDA2 overexpression efficiently suppressed cell migration and invasion. These data suggest that PHLDA2 plays an important role in the occurrence and development of pregnancy complications by promoting trophoblast apoptosis and suppressing cell invasion.
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Copy and paste a formatted citation
Spandidos Publications style
Jin F, Qiao C, Luan N and Li H: Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis. Int J Mol Med 37: 949-957, 2016.
APA
Jin, F., Qiao, C., Luan, N., & Li, H. (2016). Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis. International Journal of Molecular Medicine, 37, 949-957. https://doi.org/10.3892/ijmm.2016.2508
MLA
Jin, F., Qiao, C., Luan, N., Li, H."Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis". International Journal of Molecular Medicine 37.4 (2016): 949-957.
Chicago
Jin, F., Qiao, C., Luan, N., Li, H."Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis". International Journal of Molecular Medicine 37, no. 4 (2016): 949-957. https://doi.org/10.3892/ijmm.2016.2508
Copy and paste a formatted citation
x
Spandidos Publications style
Jin F, Qiao C, Luan N and Li H: Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis. Int J Mol Med 37: 949-957, 2016.
APA
Jin, F., Qiao, C., Luan, N., & Li, H. (2016). Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis. International Journal of Molecular Medicine, 37, 949-957. https://doi.org/10.3892/ijmm.2016.2508
MLA
Jin, F., Qiao, C., Luan, N., Li, H."Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis". International Journal of Molecular Medicine 37.4 (2016): 949-957.
Chicago
Jin, F., Qiao, C., Luan, N., Li, H."Lentivirus-mediated PHLDA2 overexpression inhibits trophoblast proliferation, migration and invasion, and induces apoptosis". International Journal of Molecular Medicine 37, no. 4 (2016): 949-957. https://doi.org/10.3892/ijmm.2016.2508
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