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Rozas-Villanueva FM, Orellana VP, Alarcón R, Maripillan J, Martinez AD, Alfaro IE, Retamal MA. Cx40 Levels Regulate Hypoxia-Induced Changes in the Migration, Proliferation, and Formation of Gap Junction Plaques in an Extravillous Trophoblast Cell Model. Cells 2024; 13:1150. [PMID: 38995001 PMCID: PMC11240472 DOI: 10.3390/cells13131150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 03/19/2024] [Accepted: 03/24/2024] [Indexed: 07/13/2024] Open
Abstract
BACKGROUND Extravillous trophoblasts (EVTs) form stratified columns at the placenta-uterus interface. In the closest part to fetal structures, EVTs have a proliferative phenotype, whereas in the closest part to maternal structures, they present a migratory phenotype. During the placentation process, Connexin 40 (Cx40) participates in both the proliferation and migration of EVTs, which occurs under hypoxia. However, a possible interaction between hypoxia and Cx40 has not yet been established. METHODS We developed two cellular models, one with "low Cx40" (Jeg-3), which reflected the expression of this protein found in migratory EVTs, and one with "high Cx40" (Jeg-3/hCx40), which reflected the expression of this protein in proliferative cells. We analyzed the migration and proliferation of these cells under normoxic and hypoxic conditions for 24 h. Jeg-3 cells under hypoxia increased their migratory capacity over their proliferative capacity. However, in Jeg-3/hCx40, the opposite effect was induced. On the other hand, hypoxia promoted gap junction (GJ) plaque formation between neighboring Jeg-3 cells. Similarly, the activation of a nitro oxide (NO)/cGMP/PKG-dependent pathway induced an increase in GJ-plaque formation in Jeg-3 cells. CONCLUSIONS The expression patterns of Cx40 play a crucial role in shaping the responses of EVTs to hypoxia, thereby influencing their migratory or proliferative phenotype. Simultaneously, hypoxia triggers an increase in Cx40 gap junction (GJ) plaque formation through a pathway dependent on NO.
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Affiliation(s)
- Fernanda M Rozas-Villanueva
- Programa de Comunicación Celular en Cáncer, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7550000, Chile
| | - Viviana P Orellana
- Programa de Comunicación Celular en Cáncer, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7550000, Chile
| | - Rodrigo Alarcón
- Programa de Comunicación Celular en Cáncer, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7550000, Chile
| | - Jaime Maripillan
- Centro Interdisciplinario de Neurociencias de Valparaíso, Instituto de Neurociencia, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Agustin D Martinez
- Centro Interdisciplinario de Neurociencias de Valparaíso, Instituto de Neurociencia, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso 2360102, Chile
| | - Ivan E Alfaro
- Programa de Comunicación Celular en Cáncer, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7550000, Chile
| | - Mauricio A Retamal
- Programa de Comunicación Celular en Cáncer, Facultad de Medicina Clínica Alemana, Universidad del Desarrollo, Santiago 7550000, Chile
- Center for Membrane Protein Research, Department of Cell Physiology and Molecular Biophysics, Texas Tech University Health Sciences Center, Lubbock, TX 79430, USA
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Huang Q, Wu H, Qin X. Extract of Pfaffia glomerata Ameliorates Paroxetine-Induced Sexual Dysfunction in Male Mice and the Characterization of Its Phytoconstituents by UPLC-MS. Foods 2023; 12:3236. [PMID: 37685170 PMCID: PMC10486411 DOI: 10.3390/foods12173236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023] Open
Abstract
Pfaffia glomerata extract (PGE) has a variety of biological activities. However, its ameliorative effect on and exact working mechanism in male sexual dysfunction are still poorly understood. This study aims to evaluate the ameliorative effect of PGE on paroxetine (PRX)-induced sexual dysfunction in male mice and uses molecular docking technology to investigate its underlying mechanism. In this work, PRX-induced sexual dysfunction was caused and PGE was gavaged in mice for 28 days. The results show that PGE significantly improved the sexual performance of mice and reduced the damage to testicular tissues. Further studies showed that PGE restored serum sex hormones to normal levels and increased nitric oxide (NO) and cyclic guanosine monophosphate (cGMP) levels as well as nitric oxide synthase (NOS) activity in penile tissues, while also decreasing phosphodiesterase-5 (PDE-5) activity, thereby maintaining normal penile erection in mice. In addition, PGE improved the activities of enzymes (LDH, ACP, and ALP) related to energy metabolism in the testis and significantly increased sperm count and viability in mice. Furthermore, the molecular docking results show that all eight compounds in PGE could form a stable complex with PDE-5 and inhibit the activity of PDE-5. In conclusion, PGE had an ameliorative effect on PRX-induced sexual dysfunction, suggesting that PGE has a potential protective effect on male sexual health.
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Affiliation(s)
- Qianqian Huang
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; (Q.H.); (H.W.)
| | - Haiying Wu
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; (Q.H.); (H.W.)
| | - Xiaoming Qin
- Guangdong Provincial Key Laboratory of Aquatic Products Processing and Safety, Guangdong Provincial Science and Technology Innovation Center for Subtropical Fruit and Vegetable Processing, College of Food Science and Technology, Guangdong Ocean University, Zhanjiang 524088, China; (Q.H.); (H.W.)
- National Research and Development Branch Center for Shellfish Processing, Zhanjiang 524088, China
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3
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Sildenafil Improves Pulmonary Vascular Remodeling in a Rat Model of Persistent Pulmonary Hypertension of the Newborn. J Cardiovasc Pharmacol 2023; 81:232-239. [PMID: 36198097 PMCID: PMC9988230 DOI: 10.1097/fjc.0000000000001373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Accepted: 09/09/2022] [Indexed: 11/05/2022]
Abstract
ABSTRACT Persistent pulmonary hypertension of the newborn (PPHN) is characterized by pulmonary arterial remodeling mainly because of apoptosis resistance and excessive proliferation of pulmonary artery smooth muscle cells (PASMCs). Sildenafil is a phosphodiesterase-5 inhibitor. Some reports have shown that sildenafil exerts protective effects against PPHN. However, the function of sildenafil in PPHN and the underlying molecular mechanisms is not clear. Here, we revealed that sildenafil effectively suppressed hypoxia-induced PASMC proliferation and apoptosis inhibition ( P < 0.05). Also, sildenafil obviously reduced ventricular hypertrophy, and inhibited pulmonary vascular remodeling in the PPHN model ( P < 0.05). Moreover, sildenafil treatment significantly attenuated the induction of Notch3 and Hes1 induced by hypoxia treatment ( P < 0.05). Furthermore, overexpression of Notch3 abolished the reduction of PASMC proliferation and promotion of PASMC apoptosis induced by sildenafil under hypoxia ( P < 0.05), whereas knockdown of Notch3 had an opposite effect ( P < 0.05). Together, our study demonstrates that sildenafil shows a potential benefit against the development of PPHN by inhibiting Notch3 signaling, providing a strategy for treating PPHN in the future.
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Gather F, Ihrig-Biedert I, Kohlhas P, Krutenko T, Peitz M, Brüstle O, Pautz A, Kleinert H. A specific, non-immune system-related isoform of the human inducible nitric oxide synthase is expressed during differentiation of human stem cells into various cell types. Cell Commun Signal 2022; 20:47. [PMID: 35392923 PMCID: PMC8991583 DOI: 10.1186/s12964-022-00855-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Accepted: 03/03/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND NOS2 expression is mostly found in bacteria-exposed or cytokine-treated tissues and is mostly connected to innate immune reactions. There are three isoforms of NOS2 (NOS2-1 to -3). In RNA-seq data sets, analyzing inflammatory gene expression, only expression of the NOS2-1 mRNA isoform is detected. However, the expression of NOS2 in differentiating human pluripotent stems (hPSCs) has not been analyzed yet. METHODS Public available RNA-seq databases were screened for data of hPSCs during differentiation to different target cells. An isoform specific algorithm was used to analyze NOS2 mRNA isoform expression. In addition, we differentiated four different human iPSC cell lines toward cortical neurons and analyzed NOS2 mRNA expression by qRT-PCR and 5'-RACE. The functionality of the NOS2-2 protein was analyzed by transient transfection of expression clones in human DLD1 cells and nitrate measurement in the supernatant of these cells. RESULTS In RNA-seq databases we detected a transient expression of the NOS2 mRNA during the differentiation of hPSCs to cardiomyocytes, chondrocytes, mesenchymal stromal cells, neurons, syncytiotrophoblast cells, and trophoblasts. NOS2 mRNA isoform specific analyses showed, that the transiently expressed NOS2 mRNA in differentiating hPSC (NOS2-2; "diff-iNOS") differ remarkably from the already described NOS2 transcript found in colon or induced islets (NOS2-1; "immuno-iNOS"). Also, analysis of the NOS2 mRNA- and protein expression during the differentiation of four different hiPSC lines towards cortical neurons showed a transient expression of the NOS2 mRNA and NOS2 protein on day 18 of the differentiation course. 5'-RACE experiments and isoform specific qRT-PCR analyses revealed that only the NOS2-2 mRNA isoform was expressed in these experiments. To analyze the functionality of the NOS2-2 protein, we transfected human DLD-1 cells with tetracycline inducible expression clones encoding the NOS2-1- or -2 coding sequence. After induction of the NOS2-1 or -2 mRNA expression by tetracycline a similar nitrate production was measured proofing the functionality of the NOS2-2 protein isoform. CONCLUSIONS Our data show that a differentiation specific NOS2 isoform (NOS2-2) is transiently expressed during differentiation of hPSC. Video Abstract.
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Affiliation(s)
- Fabian Gather
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.,Department of Molecular Embryology, Institute for Anatomy and Cell Biology, Freiburg, Germany
| | - Irmgard Ihrig-Biedert
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Paul Kohlhas
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany
| | - Tamara Krutenko
- Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Michael Peitz
- Cell Programming Core Facility, Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany.,Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Oliver Brüstle
- Institute of Reconstructive Neurobiology, University of Bonn Medical Faculty & University Hospital Bonn, Bonn, Germany
| | - Andrea Pautz
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
| | - Hartmut Kleinert
- Department of Pharmacology, University Medical Center of the Johannes Gutenberg University Mainz, Langenbeckstr. 1, 55131, Mainz, Germany.
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Abdelzaher WY, Bahaa HA, Elkhateeb R, Atta M, Fawzy MA, Ahmed AF, Rofaeil RR. Role of JNK, ERK, and p38 MAPK signaling pathway in protective effect of sildenafil in cyclophosphamide-induced placental injury in rats. Life Sci 2022; 293:120354. [PMID: 35074407 DOI: 10.1016/j.lfs.2022.120354] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2021] [Revised: 01/14/2022] [Accepted: 01/18/2022] [Indexed: 01/14/2023]
Abstract
AIMS Chemotherapeutic agents; cyclophosphamide (CYC) is used for treatment of cancer and autoimmune diseases. Grievously, CYC is non-selective as it affects both tumor and healthy cells resulting in systemic toxicity including placenta. The present study aimed to evaluate the effect of phosphodiesterase 5 inhibitor, sildenafil (Sild) on CYC-induced placental injury in rats. MATERIALS AND METHODS Thirty-two female Wister rats were randomly divided into 4 experimental groups. Group 1: control pregnant group; Group 2: Sild-treated pregnant rats; Group 3: pregnant rats received CYC; Group 4: pregnant rats received Sild and CYC. Placental malondialdehyde (MDA), total nitrite/nitrate (NOx), reduced glutathione (GSH), tumor necrosis factor-α (TNF-α), platelet growth factor (PlGF), c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase (p38MAPK), extracellular signal-regulated kinase (ERK) and cleaved caspase-3 were measured. Histological changes, Nuclear Factor kappa-light-chain-enhancer of activated B (NF-κB), Connexin 43 (GJA1) and proliferating cell nuclear antigen (PCNA) immuno-expressions were also evaluated. KEY FINDINGS CYC showed significant decrease in placental GSH, NOx, PlGF, GJA1 and PCNA immuno-expressions but significant increase in placental MDA, TNF-α, JNK, P38MAPK, ERK, caspase-3 and NF-kB immuno-expression. Sild showed significant improvement in all oxidative, inflammatory and apoptotic parameters. SIGNIFICANCE Sild is a promising protective drug against placental injury induced by CYC through antagonizing MAPK (JNK, ERK, and p38) signaling pathway with anti-oxidant, anti-inflammatory and anti-apoptotic effects.
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Affiliation(s)
| | - Haitham Ahmed Bahaa
- Department of Obstetrics and Gynecology, Faculty of Medicine, Minia University, Minia 61511, Egypt
| | - Reham Elkhateeb
- Department of Obstetrics and Gynecology, Faculty of Medicine, Minia University, Minia 61511, Egypt
| | - Medhat Atta
- Department of Anatomy, Faculty of Medicine, Minia University, Minia 61511, Egypt
| | - Michael Atef Fawzy
- Department of Biochemistry, Faculty of Pharmacy, Minia University, Minia 61511, Egypt
| | - Amira F Ahmed
- Department of Histology and Cell Biology, Faculty of Medicine, Minia University, Minia, 61511, Egypt
| | - Remon Roshdy Rofaeil
- Department of Pharmacology, Faculty of Medicine, Minia University, Minia 61511, Egypt; Department of Pharmacology, Deraya University, New Minia, Egypt.
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Sildenafil citrate-loaded targeted nanostructured lipid carrier enhances receptivity potential of endometrial cells via LIF and VEGF upregulation. Naunyn Schmiedebergs Arch Pharmacol 2021; 394:2323-2331. [PMID: 34515834 DOI: 10.1007/s00210-021-02153-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 09/02/2021] [Indexed: 10/20/2022]
Abstract
The main objective of this research is to prepare sildenafil citrate (SC)-loaded arginyl-glycyl-aspartic acid (RGD)-containing nanostructured lipid carrier (SC-loaded NLC-RGD) and evaluate their effects on the receptivity potential of endometrial cells. Hot homogenization method was used to prepare SC-loaded NLC-RGD. Then, size, drug encapsulation, and morphology of prepared nanoparticles were studied by photon correlation spectroscopy technic, ultrafiltration method, and scanning electron microscopy, respectively. Subsequently, the influence of SC-loaded NLC-RGD on endometrial receptivity was evaluated by in vitro implantation assay. Finally, expression of vascular endothelial growth factor (VEGF), leukemia inhibitory factor (LIF), and integrin beta 3 (as endometrial receptivity markers) was assessed in SC-loaded NLC-RGD-treated endometrial cells by reverse transcription polymerase chain reaction (RT-PCR). Particles with a nano-size diameter (92.7 nm), appropriate polydispersity index (0.21), spherical morphology, and acceptable loading efficiency were prepared. In vitro implantation assay showed that SC, SC-loaded NLC, and SC-loaded NLC-RGD improve the rate of endometrial attachment potential by 1.6 ± 0.4, 1.7 ± 0.3, and 2.3 ± 0.3 times, respectively. Analysis of RT-PCR results showed the enhancing mRNA of LIF and VEGF in SC-treated endometrial cells. Results also confirmed the higher influence of SC-loaded NLC-RGD on gene expression patterns in comparison to SC. Using NLC-RGD as a carrier to deliver SC to endometrial cells is an effective approach to improve endometrial receptivity. Upregulation of LIF and VEGF is the probable mechanism by which SC enhances the endometrial receptivity potential.
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7
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Tao Y, Wang N. Adjuvant Vaginal Use of Sildenafil Citrate in a Hormone Replacement Cycle Improved Live Birth Rates Among 10,069 Women During First Frozen Embryo Transfers. DRUG DESIGN DEVELOPMENT AND THERAPY 2020; 14:5289-5297. [PMID: 33293792 PMCID: PMC7718965 DOI: 10.2147/dddt.s281451] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 09/13/2020] [Accepted: 11/12/2020] [Indexed: 12/17/2022]
Abstract
Purpose To investigate the effects of sildenafil citrate (SC) on live birth rates (LBR) during women undergoing their first frozen embryo transfers (FET) with hormone replacement therapy (HRT). Patients and Methods This retrospective cohort study included a total of 10,069 infertile women with adequate endometrial thickness (≥7 mm when progesterone was initiated) in their first FET cycle with hormone replacement therapy. Women received either vaginal SC or no adjuvant during their first transfer cycle depending on patient or physician preference. In the sildenafil group, 1098 women underwent HRT FET with adjuvant vaginal use of SC, and 8971 women were included as controls. The primary outcome measure was LBR, defined as the likelihood of live birth per transfer cycle. Endometrial thickness (EMT), implantation, chemical pregnancy, clinical pregnancy, miscarriage, ongoing pregnancy, birth weight and preterm delivery (PTB) were also recorded. Results Baseline characteristics were comparable between the two groups. In the crude analysis, the unadjusted LBR was significantly higher in the vaginal SC group (scHRT-FET) than in the control group (HRT-FET) (40.3% vs 36.1%). After adjustment for 12 pregnancy-related confounding factors, logistic regression analysis showed that LBR remained significantly higher in the scHRT-FET group than in the HRT-FET group (adjusted odds ratio [aOR] 1.31, 95% confidence interval [CI] 1.14–1.49). Furthermore, after adjustment, the ongoing pregnancy rate was significantly higher (aOR 1.29, 95% CI 1.13–1.47), and the miscarriage rate was significantly lower (aOR 0.58, 95% CI 0.43–0.77), in the scHRT-FET group compared to the HRT-FET group. Adjuvant vaginal use of SC did not increase the endometrial thickness and had no significant effect on birth weight or PTB. Conclusion Adjuvant vaginal use of SC in HRT FET was associated with higher LBR and improved pregnancy outcomes in an infertile population with adequate endometrial thickness. The beneficial effect of SC may be due not to an increase in EMT but instead to improve endometrial blood flow and receptivity, which might merit clinicians’ attention for improving general IVF practices.
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Affiliation(s)
- Yu Tao
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to JiaoTong University School of Medicine, Shanghai, People's Republic of China
| | - Ningling Wang
- Department of Assisted Reproduction, Shanghai Ninth People's Hospital Affiliated to JiaoTong University School of Medicine, Shanghai, People's Republic of China
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Abnormal cGMP-dependent protein kinase I-mediated decidualization in preeclampsia. Hypertens Res 2020; 44:318-324. [PMID: 33093639 DOI: 10.1038/s41440-020-00561-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/27/2020] [Accepted: 09/05/2020] [Indexed: 11/08/2022]
Abstract
Defective decidual function contributes to the pathogenesis of preeclampsia. However, the precise mechanism of defective decidua during preeclampsia has not been characterized. During decidualization, endometrial stromal cells undergo phenotypic changes that are consistent with mesenchymal-epithelial transition (MET). cGMP-dependent kinase protein I (PKGI)/VASP signaling is important in cell motility proliferation, differentiation and cell adhesion. To investigate this aim, we analyzed PKGI levels, phosphorylated VASP protein levels, and eNOS and sGC protein expression levels during pregnancy complicated by preeclampsia, which indicated that PKGI/VASP signaling function is decreased by the condition. Moreover, we evaluated the differential expression of genes that regulate MET in the decidua resulting from preeclampsia and healthy pregnancies. We discovered that vimentin mRNA levels are decreased in the decidua of preeclampsia, which indicates that excessive MET occurs in the decidua of preeclampsia pregnancies. A fundamental developmental MET program occurred in response to signaling pathways. These results suggest the important role of decreased PKGI/VASP signaling during excessive MET in the pathogenesis of preeclampsia.
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Drewlo S, Johnson E, Kilburn BA, Kadam L, Armistead B, Kohan-Ghadr HR. Irisin induces trophoblast differentiation via AMPK activation in the human placenta. J Cell Physiol 2020; 235:7146-7158. [PMID: 32020629 DOI: 10.1002/jcp.29613] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Accepted: 01/22/2020] [Indexed: 12/15/2022]
Abstract
Irisin, an adipokine, regulates differentiation and phenotype in various cell types including myocytes, adipocytes, and osteoblasts. Circulating irisin concentration increases throughout human pregnancy. In pregnancy disorders such as preeclampsia and gestational diabetes mellitus, circulating irisin levels are reduced compared to healthy controls. To date, there are no data on the role and molecular function of irisin in the human placenta or its contribution to pathophysiology. Aberrant trophoblast differentiation is involved in the pathophysiology of preeclampsia. The current study aimed to assess the molecular effects of irisin on trophoblast differentiation and function. First-trimester placental explants were cultured and treated with low (10 nM) and high (50 nM) physiological doses of irisin. Treatment with irisin dose-dependently increased both in vitro placental outgrowth (on Matrigel™) and trophoblast cell-cell fusion. Adenosine monophosphate-activated protein kinase (AMPK) signaling, an important regulator of cellular energy homeostasis that is involved in trophoblast differentiation and pathology, was subsequently investigated. Here, irisin exposure induced placental AMPK activation. To determine the effects of irisin on trophoblast differentiation, two trophoblast-like cell lines, HTR-8/SVneo and BeWo, were treated with irisin and/or a specific AMPK inhibitor (Compound C). Irisin-induced AMPK phosphorylation in HTR-8/SVneo cells. Additionally, as part of the differentiation process, integrin switching from α6 to α1 occurred as well as increased invasiveness. Overall, irisin promoted differentiation in villous and extravillous cell-based models via AMPK pathway activation. These findings provide evidence that exposure to irisin promotes differentiation and improves trophoblast functions in the human placenta that are affected in abnormal placentation.
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Affiliation(s)
- Sascha Drewlo
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Eugenia Johnson
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Brian A Kilburn
- Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Leena Kadam
- Department of Anatomy and Cell Biology, Wayne State University School of Medicine, Detroit, Michigan.,Department of Obstetrics and Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Brooke Armistead
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
| | - Hamid-Reza Kohan-Ghadr
- Department of Obstetrics, Gynecology and Reproductive Biology, College of Human Medicine, Michigan State University, Grand Rapids, Michigan
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Guerby P, Swiader A, Tasta O, Pont F, Rodriguez F, Parant O, Vayssière C, Shibata T, Uchida K, Salvayre R, Negre-Salvayre A. Modification of endothelial nitric oxide synthase by 4-oxo-2(E)-nonenal(ONE) in preeclamptic placentas. Free Radic Biol Med 2019; 141:416-425. [PMID: 31323312 DOI: 10.1016/j.freeradbiomed.2019.07.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/09/2019] [Accepted: 07/15/2019] [Indexed: 01/21/2023]
Abstract
Preeclampsia (PE) is a leading cause of pregnancy complications, affecting 3-7% of pregnant women worldwide. The pathophysiology of preeclampsia involves a redox imbalance, oxidative stress and a reduced nitric oxide (NO) bioavailability. The molecular and cellular mechanisms leading to the dysfunction of the placental endothelial NO synthase (eNOS) are not clarified. This study was designed to investigate whether aldehydes generated by lipid peroxidation products (LPP), may contribute to placental eNOS dysfunction in PE. The analysis of placentas from PE-affected patients and normal pregnancies, showed a significant increase in protein carbonyl content, indicative of oxidative stress-induced protein modification, as shown by the accumulation of acrolein, 4-hydroxynonenal (HNE), and 4-oxo-2(E)-nonenal (ONE) adducts in PE placentas. In contrast, the levels of these LPP-adducts were low in placentas from normal pregnancies. Immunofluorescence and confocal experiments pointed out a colocalization of eNOS with ONE-Lys adducts, whereas eNOS was not modified in normal placentas. LC-MS/MS analysis of recombinant eNOS preincubated with ONE, allowed to identify several ONE-modified Lys-containing peptides, confirming that eNOS may undergo post-translational modification by LPP. The preincubation of HTR-8/SVneo human trophoblasts (HTR8) with ONE, resulted in ONE-Lys modification of eNOS and a reduced generation of NO. ONE inhibited the migration of HTR8 trophoblasts in the wound closure model, and this was partly restored by the NO donor, NOC-18, which confirmed the important role of NO in the invasive potential of trophoblasts. In conclusion, placental eNOS is modified by ONE in PE placentas, which emphasizes the sensitivity of this protein to oxidative stress in the disturbed redox environment of preeclamptic pregnancies.
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Affiliation(s)
- Paul Guerby
- Inserm U-1048, Université de Toulouse, France; Pôle de Gynécologie Obstétrique, Hôpital Paule-de-Viguier, CHU de Toulouse, France
| | | | - Oriane Tasta
- Inserm U-1048, Université de Toulouse, France; Pôle de Gynécologie Obstétrique, Hôpital Paule-de-Viguier, CHU de Toulouse, France
| | | | | | - Olivier Parant
- Pôle de Gynécologie Obstétrique, Hôpital Paule-de-Viguier, CHU de Toulouse, France
| | - Christophe Vayssière
- Pôle de Gynécologie Obstétrique, Hôpital Paule-de-Viguier, CHU de Toulouse, France
| | - Takahiro Shibata
- Graduate School of Bioagricultural Sciences, Nagoya University, Japan
| | - Koji Uchida
- Laboratory of Food Chemistry, University of Tokyo, Japan
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Oxidative Stress in Preeclampsia and Placental Diseases. Int J Mol Sci 2018; 19:ijms19051496. [PMID: 29772777 PMCID: PMC5983711 DOI: 10.3390/ijms19051496] [Citation(s) in RCA: 318] [Impact Index Per Article: 53.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2018] [Revised: 05/09/2018] [Accepted: 05/11/2018] [Indexed: 02/07/2023] Open
Abstract
Preeclampsia is a persistent hypertensive gestational disease characterized by high blood pressure and proteinuria, which presents from the second trimester of pregnancy. At the cellular level, preeclampsia has largely been associated with the release of free radicals by the placenta. Placenta-borne oxidative and nitrosative stresses are even sometimes considered as the major molecular determinants of the maternal disease. In this review, we present the recent literature evaluating free radical production in both normal and pathological placentas (including preeclampsia and other major pregnancy diseases), in humans and animal models. We then assess the putative effects of these free radicals on the placenta and maternal endothelium. This analysis was conducted with regard to recent papers and possible therapeutic avenues.
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Bolnick AD, Bolnick JM, Kohan-Ghadr HR, Kilburn BA, Pasalodos OJ, Singhal PK, Dai J, Diamond MP, Armant DR, Drewlo S. Enhancement of trophoblast differentiation and survival by low molecular weight heparin requires heparin-binding EGF-like growth factor. Hum Reprod 2018; 32:1218-1229. [PMID: 28402449 DOI: 10.1093/humrep/dex069] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2016] [Accepted: 02/09/2017] [Indexed: 02/07/2023] Open
Abstract
STUDY QUESTION Does low molecular weight heparin (LMWH) require heparin-binding epidermal growth factor (EGF)-like growth factor (HBEGF) signaling to induce extravillous trophoblast differentiation and decrease apoptosis during oxidative stress? SUMMARY ANSWER LMWH increased HBEGF expression and secretion, and HBEGF signaling was required to stimulate trophoblast extravillous differentiation, increase invasion in vitro and reduce trophoblast apoptosis during oxidative stress. WHAT IS KNOWN ALREADY Abnormal trophoblast differentiation and survival contribute to placental insufficiency syndromes, including preeclampsia and intrauterine growth restriction. Preeclampsia often manifests as a pro-thrombotic state, with unsuccessful transformation of the spiral arteries that reduces oxygen supply and can produce placental infarction. LMWH improves placental function by increasing blood flow. Recent data suggest that the actions of LMWH transcend its anti-coagulative properties, but the molecular mechanism is unknown. There is evidence that LMWH alters the expression of human HBEGF in trophoblast cells, which regulates human trophoblast pathophysiology. HBEGF, itself, is capable of increasing trophoblast survival and invasiveness. STUDY DESIGN, SIZE, DURATION First-trimester placental explants and the HTR-8/SVneo cell line, established using extravillous trophoblast outgrowths from first-trimester villous explants, were treated in vitro with LMWH to examine the effects on HBEGF signaling and trophoblast function under normal physiological and pathological conditions. A highly specific antagonist of HBEGF and other inhibitors of HBEGF downstream signaling were used to determine the relationship between LMWH treatment and HBEGF. PARTICIPANTS/MATERIALS, SETTING, METHODS Placental tissues (n = 5) were obtained with IRB approval and patient consent from first-trimester terminations. Placental explants and HTR-8/SVneo cells were cultured on plastic or Matrigel™ and treated with a therapeutic dose of LMWH (Enoxaparin; 10 IU/ml), with or without CRM197, pan Erb-B2 Receptor Tyrosine Kinase (ERBB) inhibitor, anti-ERBB1 or ERBB4 blocking antibodies, or pretreatment of cells with heparitinase I. Extravillous differentiation was assessed by immunocytochemistry to determine the relative levels of integrins α6β4 and α1β1. Trophoblast invasiveness was assessed in villous explants by measuring outgrowth from villous tips cultured on Matrigel, and by invasion assays with HTR-8/SVneo cells cultured on Matrigel-coated transwell insert. Placental explants and HTR-8/SVneo cells were exposed to oxidative stress in a hypoxia-reoxygenation (H-R) model, measuring cell death by TUNEL assay, caspase 3 cleavage, and BCL-2α expression. MAIN RESULTS AND THE ROLE OF CHANCE LMWH induced extravillous differentiation, according to trophoblast invasion assays and integrin (α6β4-α1β1) switching. Treatment with LMWH rescued cytotrophoblasts and HTR-8/SVneo cells from apoptosis during exposure to reoxygenation injury, based on TUNEL, caspase 3 cleavage and BCL-2α expression. Experiments using CRM197, ERBB1 and ERBB4 blocking antibodies, pan-ERBB inhibitor and removal of cell surface heparin demonstrated that the effects of LMWH on trophoblast invasion and survival were dependent upon HBEGF signaling. LARGE SCALE DATA N/A. LIMITATIONS, REASONS FOR CAUTION The primary limitation of this study was the use of only in vitro experiments. Patient demographics from elective terminations were not available. WIDER IMPLICATIONS OF THE FINDINGS These data provide new insights into the non-coagulation-related aspects of perinatal LMWH treatment in the management of placental insufficiency disorders. STUDY FUNDING/COMPETING INTEREST(S) This research was supported by grants from the National Institutes of Health (HD071408 and HL128628), the March of Dimes, and the W. K. Kellogg Foundation. There were no conflicts or competing interests.
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Affiliation(s)
- Alan D Bolnick
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
| | - Jay M Bolnick
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
| | | | - Brian A Kilburn
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
| | - Omar J Pasalodos
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
| | - Pankaj K Singhal
- Department of Obstetrics and Gynecology, Good Samaritan Hospital Medical Center, West Islip, NY, USA
| | - Jing Dai
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
| | - Michael P Diamond
- Department of Obstetrics and Gynecology, Augusta University, Augusta, GA, USA
| | - D Randall Armant
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA.,Department of Anatomy and Cell Biology, Wayne State University, Detroit, MI, USA
| | - Sascha Drewlo
- Department of Obstetrics and Gynecology, Wayne State University, Detroit, MI, USA
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Bolnick AD, Bolnick JM, Kohan-Ghadr HR, Kilburn BA, Hertz M, Dai J, Drewlo S, Armant DR. Nifedipine Prevents Apoptosis of Alcohol-Exposed First-Trimester Trophoblast Cells. Alcohol Clin Exp Res 2017; 42:53-60. [PMID: 29048755 DOI: 10.1111/acer.13534] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2017] [Accepted: 10/12/2017] [Indexed: 11/30/2022]
Abstract
BACKGROUND Maternal alcohol abuse leading to fetal alcohol spectrum disorder (FASD) includes fetal growth restriction (FGR). Ethanol (EtOH) induces apoptosis of human placental trophoblast cells, possibly disrupting placentation and contributing to FGR in FASD. EtOH facilitates apoptosis in several embryonic tissues, including human trophoblasts, by raising intracellular Ca2+ . We previously found that acute EtOH exposure increases trophoblast apoptosis due to signaling from both intracellular and extracellular Ca2+ . Therefore, nifedipine, a Ca2+ channel blocker that is commonly administered to treat preeclampsia and preterm labor, was evaluated for cytoprotective properties in trophoblast cells exposed to alcohol. METHODS Human first-trimester chorionic villous explants and the human trophoblast cell line HTR-8/SVneo (HTR) were pretreated with 12.5 to 50 nM of the Ca2+ channel blocker nifedipine for 1 hour before exposure to 50 mM EtOH for an additional hour. Intracellular Ca2+ concentrations were monitored in real time by epifluorescence microscopy, using fluo-4-AM. Apoptosis was assessed by terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL), accumulation of cytoplasmic cytochrome c, and cleavage rates of caspase 3 and caspase 9. RESULTS The increase in intracellular Ca2+ upon exposure to EtOH in both villous explants and HTR cells was completely blocked (p < 0.05) when pretreated with nifedipine, accompanied by inhibition of EtOH-induced release of cytochrome c, caspase activities, and TUNEL. CONCLUSIONS This study indicates that nifedipine can interrupt the apoptotic pathway downstream of EtOH exposure and could provide a novel strategy for future interventions in women with fetuses at risk for FASD.
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Affiliation(s)
- Alan D Bolnick
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jay M Bolnick
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Hamid-Reza Kohan-Ghadr
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Brian A Kilburn
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Michael Hertz
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Jing Dai
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - Sascha Drewlo
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan
| | - D Randall Armant
- Departments of Obstetrics & Gynecology, Wayne State University School of Medicine, Detroit, Michigan.,Anatomy& Cell Biology, Wayne State University School of Medicine, Detroit, Michigan
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Lambert JA, Carlisle MA, Lam A, Aggarwal S, Doran S, Ren C, Bradley WE, Dell'Italia L, Ambalavanan N, Ford DA, Patel RP, Jilling T, Matalon S. Mechanisms and Treatment of Halogen Inhalation-Induced Pulmonary and Systemic Injuries in Pregnant Mice. Hypertension 2017; 70:390-400. [PMID: 28607126 DOI: 10.1161/hypertensionaha.117.09466] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Revised: 04/05/2017] [Accepted: 05/10/2017] [Indexed: 11/16/2022]
Abstract
Inhalation of oxidant gases has been implicated in adverse outcomes in pregnancy, but animal models to address mechanisms and studies to identify potential pregnancy-specific therapies are lacking. Herein, we show that inhalation of bromine at 600 parts per million for 30 minutes by pregnant mice on the 15th day of embryonic development results in significantly lower survival after 96 hours than an identical level of exposure in nonpregnant mice. On the 19th embryonic day, bromine-exposed pregnant mice have increased systemic blood pressure, abnormal placental development, severe fetal growth restriction, systemic inflammation, increased levels of circulating antiangiogenic short fms-like tyrosine kinase-1, and evidence of pulmonary and cardiac injury. Treatment with tadalafil, an inhibitor of type 5 phosphodiesterase, by oral gavage 1 hour post-exposure and then once daily thereafter, attenuated systemic blood pressures, decreased inflammation, ameliorated pulmonary and cardiac injury, and improved maternal survival (from 36% to 80%) and fetal growth. These pathological changes resemble those seen in preeclampsia. Nonpregnant mice did not exhibit any of these pathological changes and were not affected by tadalafil. These findings suggest that pregnant women exposed to bromine may require particular attention and monitoring for signs of preeclampsia-like symptoms.
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Affiliation(s)
- James A Lambert
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Matthew A Carlisle
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Adam Lam
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Saurabh Aggarwal
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Stephen Doran
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Changchun Ren
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Wayne E Bradley
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Louis Dell'Italia
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Namasivayam Ambalavanan
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - David A Ford
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Rakesh P Patel
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Tamas Jilling
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.)
| | - Sadis Matalon
- From the Biochemistry, Structural and Stem Cell Biology, Graduate Biomedical Sciences (J.A.L.), Division of Molecular and Translational Biomedicine, Department of Anesthesiology and Perioperative Medicine (J.A.L., M.A.C., A.L., S.A., S.D., S.M.), Division of Neonatology, Department of Pediatrics (C.R., N.A., T.J.), Division of Cardiovascular Disease, Department of Medicine (W.E.B., L.D.), and Cellular and Molecular Pathology, Department of Pathology (R.P.P.), University of Alabama at Birmingham; and Department of Biochemistry and Molecular Biology and Center for Cardiovascular Research, Saint Louis University, MO (D.A.F.).
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Chauhan M, Balakrishnan M, Vidaeff A, Yallampalli U, Lugo F, Fox K, Belfort M, Yallampalli C. Adrenomedullin2 (ADM2)/Intermedin (IMD): A Potential Role in the Pathophysiology of Preeclampsia. J Clin Endocrinol Metab 2016; 101:4478-4488. [PMID: 27583470 PMCID: PMC5095259 DOI: 10.1210/jc.2016-1333] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
CONTEXT It is not known whether decreases in trophoblast invasion promoting the peptide, adrenomedullin2 (ADM2) system is associated with preeclampsia (PreE). OBJECTIVE The objective of the study was to assess the changes in ADM2 levels in plasma, placenta, and amniotic fluid (AF) and its receptor components in placenta from PreE pregnancy compared with the age-matched normal and study the effect of ADM2 on the synthesis of nitric oxide (NO), endothelial nitric oxide synthase (eNOS), and matrix-metalloproteinase (MMP)-2 and MMP-9 in trophoblast cells. RESULTS PreE is associated with a decreased expression of ADM2 in plasma and placenta (P < .05); ADM2 interacts with a seven-transmembrane G protein-coupled receptor, calcitonin receptor-like receptor (CRLR) in HTR-8/SVneo cells; placental expression of ADM2/CRLR complex is lower in PreE; mRNA for CRLR and receptor activity-modifying protein-3 are lower, whereas receptor activity-modifying protein-2 is higher in the PreE placenta (P < .05); ADM2 levels in the second trimester are lower in the AF from pregnant women who develop PreE later in gestation (P < .05); ADM2 is localized to the epithelium of the amnion and the ectoderm and mesoderm of the chorion in term fetal membranes; ADM2 increases NO production, eNOS, and MMP2/9-immunoreactivity, whereas ADM2 knockdown inhibits the expression of eNOS and MMP2/9 mRNA and S-nitrosylation in HTR-8/SVneo cells; and ADM2-induced increases in MMP2/9 activity is inhibited by L-nitro-arginine methyl ester in HTR-8SV/neo cells. CONCLUSION Decreases in the ADM2 system in PreE at term, in AF from pregnant women during the second trimester who develop PreE later in gestation, and ADM2-induced increases in the NO and MMP-2/9 levels in trophoblast cells suggest a potential role for ADM2 via the NO-MMP system in the pathophysiology of PreE.
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Affiliation(s)
- Madhu Chauhan
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Meena Balakrishnan
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Alex Vidaeff
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Uma Yallampalli
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Fernando Lugo
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Karin Fox
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Michael Belfort
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
| | - Chandra Yallampalli
- Department of Obstetrics and Gynecology, Baylor College of Medicine, Houston, Texas 77030
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Burke SD, Zsengellér ZK, Khankin EV, Lo AS, Rajakumar A, DuPont JJ, McCurley A, Moss ME, Zhang D, Clark CD, Wang A, Seely EW, Kang PM, Stillman IE, Jaffe IZ, Karumanchi SA. Soluble fms-like tyrosine kinase 1 promotes angiotensin II sensitivity in preeclampsia. J Clin Invest 2016; 126:2561-74. [PMID: 27270170 DOI: 10.1172/jci83918] [Citation(s) in RCA: 99] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2015] [Accepted: 04/07/2016] [Indexed: 12/11/2022] Open
Abstract
Preeclampsia is a hypertensive disorder of pregnancy in which patients develop profound sensitivity to vasopressors, such as angiotensin II, and is associated with substantial morbidity for the mother and fetus. Enhanced vasoconstrictor sensitivity and elevations in soluble fms-like tyrosine kinase 1 (sFLT1), a circulating antiangiogenic protein, precede clinical signs and symptoms of preeclampsia. Here, we report that overexpression of sFlt1 in pregnant mice induced angiotensin II sensitivity and hypertension by impairing endothelial nitric oxide synthase (eNOS) phosphorylation and promoting oxidative stress in the vasculature. Administration of the NOS inhibitor l-NAME to pregnant mice recapitulated the angiotensin sensitivity and oxidative stress observed with sFlt1 overexpression. Sildenafil, an FDA-approved phosphodiesterase 5 inhibitor that enhances NO signaling, reversed sFlt1-induced hypertension and angiotensin II sensitivity in the preeclampsia mouse model. Sildenafil treatment also improved uterine blood flow, decreased uterine vascular resistance, and improved fetal weights in comparison with untreated sFlt1-expressing mice. Finally, sFLT1 protein expression inversely correlated with reductions in eNOS phosphorylation in placental tissue of human preeclampsia patients. These data support the concept that endothelial dysfunction due to high circulating sFLT1 may be the primary event leading to enhanced vasoconstrictor sensitivity that is characteristic of preeclampsia and suggest that targeting sFLT1-induced pathways may be an avenue for treating preeclampsia and improving fetal outcomes.
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