Int. J. Biol. Sci. 2014, Vol. 10
Ivyspring International Publisher
278
International Journal of Biological Sciences 2014; 10(3):278-284. doi: 10.7150/ijbs.6375
Research Paper
Study on the Expressions of PHD and HIF in Placentas from Normal Pregnant Women and Patients with Preeclampsia Wei Liu1, Shu-Jun Wang2, Qi-De Lin1 1. 2.
Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China; Shanghai Institute of Immunology, Shanghai, 200025, China.
Corresponding author: Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China. E-mail: [email protected] Tel: +86-0-13916362152 Fax: +86-021-68383802. © Ivyspring International Publisher. This is an open-access article distributed under the terms of the Creative Commons License (http://creativecommons.org/ licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited.
Received: 2013.04.01; Accepted: 2013.11.27; Published: 2014.02.21
Abstract Objective: To investigate the relationship between oxygen sensitivity of trophoblast and hypoxia in preeclamptic placenta by the study on the expressions of hypoxia-inducible factor prolyl 4-hydroxylase (PHD) and hypoxia-inducible factor (HIF) in placentas from normal pregnant women and patients with pre-eclampsia. Methods: Subjects were chosen from the in-patients or the out-patients from May 2003 to May 2004. They were divided into 5 groups: early pregnancy group (EP), 13 cases; middle pregnancy group (MP), 9 cases; late pregnancy group (LP, or control group), 12 cases; preeclampsia (PE) group, 20 cases; gestational hypertension group (GH), 10 cases. The mRNA expressions of PHD-1 and –2 and –3 in placentas from all the subjects were assessed by in situ hybridization and Real-time PCR. The expressions of HIF-1α and -2α in placentas from different groups were assessed by immunohistochemistry and western blot. Results: PHD-1,–2 and –3 mRNA were mainly expressed in cytoplasm of trophoblast, especially strongly expressed in extravillous trophoblast. During the progress of pregnancy, the expression of PHD-1 increased significantly (R=0.616, P
Ivyspring International Publisher
278
International Journal of Biological Sciences 2014; 10(3):278-284. doi: 10.7150/ijbs.6375
Research Paper
Study on the Expressions of PHD and HIF in Placentas from Normal Pregnant Women and Patients with Preeclampsia Wei Liu1, Shu-Jun Wang2, Qi-De Lin1 1. 2.
Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China; Shanghai Institute of Immunology, Shanghai, 200025, China.
Corresponding author: Department of Obstetrics and Gynecology, Ren Ji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, 200127, China. E-mail: [email protected] Tel: +86-0-13916362152 Fax: +86-021-68383802. © Ivyspring International Publisher. This is an open-access article distributed under the terms of the Creative Commons License (http://creativecommons.org/ licenses/by-nc-nd/3.0/). Reproduction is permitted for personal, noncommercial use, provided that the article is in whole, unmodified, and properly cited.
Received: 2013.04.01; Accepted: 2013.11.27; Published: 2014.02.21
Abstract Objective: To investigate the relationship between oxygen sensitivity of trophoblast and hypoxia in preeclamptic placenta by the study on the expressions of hypoxia-inducible factor prolyl 4-hydroxylase (PHD) and hypoxia-inducible factor (HIF) in placentas from normal pregnant women and patients with pre-eclampsia. Methods: Subjects were chosen from the in-patients or the out-patients from May 2003 to May 2004. They were divided into 5 groups: early pregnancy group (EP), 13 cases; middle pregnancy group (MP), 9 cases; late pregnancy group (LP, or control group), 12 cases; preeclampsia (PE) group, 20 cases; gestational hypertension group (GH), 10 cases. The mRNA expressions of PHD-1 and –2 and –3 in placentas from all the subjects were assessed by in situ hybridization and Real-time PCR. The expressions of HIF-1α and -2α in placentas from different groups were assessed by immunohistochemistry and western blot. Results: PHD-1,–2 and –3 mRNA were mainly expressed in cytoplasm of trophoblast, especially strongly expressed in extravillous trophoblast. During the progress of pregnancy, the expression of PHD-1 increased significantly (R=0.616, P
