Yin Yang 1 impacts upon preeclampsia by regulating Treg/TH17 cells and PI3K/AKT pathway
Preeclampsia (PE) is a common obstetric syndrome with an unclear etiology and pathogenesis. The study here aimed to investigate the role of Yin Yang 1 (YY1) in PE, and to reveal any YY1-regulated mechanisms in PE. Peripheral blood, placenta, and endometrial tissues of PE patients, healthy volunteers, and patients who had undergone an elective Cesarean section and had a scarred uterus (control group) were collected for analyses. Rat PE models were established by lipopolysaccharide induction. Subsets of these rats were then made to over-express YY1. At 18 d after the PE was established, urine, blood, and placental tissues from all rats were collected. Levels of regulatory-T (Treg) and helper T-type 17 (TH17) cells in both human and rat blood were measured by flow cytometry. ELISA kits were used to evaluate blood levels of inflammatory factors (i.e. IL-6, IL-10, and IL-17) as well. RT-qPCR and Western blot assays were performed to quantify levels of forkhead box P3 (Foxp3), retinoic acid-related orphan receptor C (RORc), and YY1 in the human and rat placenta and endometrial tissues. Expressions of PI3K/AKT pathway-related proteins were also evaluated by Western blots. The results indicated that the PE patients, relative to levels in control group and the healthy control subjects, had decreased circulating levels of Treg cells/increased TH17 cells; tissues from these patients also had relatively-decreased FoxP3 mRNA and protein expressions and elevated RORc mRNA and protein expressions. YY1 was expressed only at low levels in the PE patient placenta and endometrial tissues. In rats, PE rats treated with over-expressed YY1 had (relative to in PE rats without over-induced YY1) increased circulating levels of Treg cells/decreased TH17 cells; tissues from these rats had elevated FoxP3 mRNA and protein expressions and reduced mRNA and protein RORc expressions, as well as indications of alleviated inflammation. In the rat placenta samples, YY1 was also determined to activate the PI3K/AKT pathway. In summary, YY1 regulates the balance among Treg/TH17 cells and so affect the PE process in part through activation of the PI3K/AKT pathway.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:20 |
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| Enthalten in: |
Journal of immunotoxicology - 20(2023), 1 vom: 26. Dez., Seite 2228420 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Li, Haowen [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Completed 21.07.2023 Date Revised 24.07.2023 published: Print Citation Status MEDLINE |
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| doi: |
10.1080/1547691X.2023.2228420 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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| 245 | 1 | 0 | |a Yin Yang 1 impacts upon preeclampsia by regulating Treg/TH17 cells and PI3K/AKT pathway |
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| 520 | |a Preeclampsia (PE) is a common obstetric syndrome with an unclear etiology and pathogenesis. The study here aimed to investigate the role of Yin Yang 1 (YY1) in PE, and to reveal any YY1-regulated mechanisms in PE. Peripheral blood, placenta, and endometrial tissues of PE patients, healthy volunteers, and patients who had undergone an elective Cesarean section and had a scarred uterus (control group) were collected for analyses. Rat PE models were established by lipopolysaccharide induction. Subsets of these rats were then made to over-express YY1. At 18 d after the PE was established, urine, blood, and placental tissues from all rats were collected. Levels of regulatory-T (Treg) and helper T-type 17 (TH17) cells in both human and rat blood were measured by flow cytometry. ELISA kits were used to evaluate blood levels of inflammatory factors (i.e. IL-6, IL-10, and IL-17) as well. RT-qPCR and Western blot assays were performed to quantify levels of forkhead box P3 (Foxp3), retinoic acid-related orphan receptor C (RORc), and YY1 in the human and rat placenta and endometrial tissues. Expressions of PI3K/AKT pathway-related proteins were also evaluated by Western blots. The results indicated that the PE patients, relative to levels in control group and the healthy control subjects, had decreased circulating levels of Treg cells/increased TH17 cells; tissues from these patients also had relatively-decreased FoxP3 mRNA and protein expressions and elevated RORc mRNA and protein expressions. YY1 was expressed only at low levels in the PE patient placenta and endometrial tissues. In rats, PE rats treated with over-expressed YY1 had (relative to in PE rats without over-induced YY1) increased circulating levels of Treg cells/decreased TH17 cells; tissues from these rats had elevated FoxP3 mRNA and protein expressions and reduced mRNA and protein RORc expressions, as well as indications of alleviated inflammation. In the rat placenta samples, YY1 was also determined to activate the PI3K/AKT pathway. In summary, YY1 regulates the balance among Treg/TH17 cells and so affect the PE process in part through activation of the PI3K/AKT pathway | ||
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