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Zhao W, Shen WW, Cao XM, Ding WY, Yan LP, Gao LJ, Li XL, Zhong TY. Novel mechanism of miRNA-365-regulated trophoblast apoptosis in recurrent miscarriage. J Cell Mol Med 2017; 21:2412-2425. [PMID: 28393453 PMCID: PMC5618703 DOI: 10.1111/jcmm.13163] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2016] [Accepted: 02/12/2017] [Indexed: 12/24/2022] Open
Abstract
Clinical pregnancies increasingly end in recurrent miscarriage (RM) during the first trimester, with genetic factors shouldering the main responsibility. MicroRNAs (miRNAs) regulate gene expression in a wide array of important biological processes. We examined the potential role of dysregulated miRNAs in RM pathogenesis and trophoblast development as an approach to elucidate the molecular mechanism behind RM. miRNA profiles from clinical specimens of RM and induced abortion (IA) were compared, and several miRNAs were found to be aberrantly expressed in RM samples. Among the miRNAs, miR-365 was significantly differentially expressed in RM decidual tissues. Furthermore, our results demonstrate that miR-365 functions as an upstream regulator of MDM2/p53 expression, cell cycle progression and apoptosis in trophoblasts. Bioinformatic prediction and experimental validation assays identified SGK1 as a direct target of miR-365; consistently, its protein levels were low in decidual tissues. Additionally, functional studies revealed that SGK1 silencing elicits cell cycle arrest and apoptosis in trophoblasts and that SGK1 overexpression attenuates the effects of miR-365 on apoptosis and MDM2/p53 expression. Collectively, our data provide evidence that the up-regulation of miR-365 may contribute to RM by decreasing SGK1 expression, which suggests its potential utility as a prognostic biomarker and therapeutic target for RM.
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Affiliation(s)
- Wei Zhao
- The Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, China
| | - Wei-Wei Shen
- State Key Laboratory of Reproductive Medicine, Department of Clinical Laboratory, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Tianfei Alley, Nanjing, China
| | | | - Wen-Yan Ding
- State Key Laboratory of Reproductive Medicine, Department of Clinical Laboratory, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Tianfei Alley, Nanjing, China
| | - Lin-Ping Yan
- The Fourth School of Clinical Medicine of Nanjing Medical University, Nanjing, China
| | - Ling-Juan Gao
- State Key Laboratory of Reproductive Medicine, Department of Clinical Laboratory, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Tianfei Alley, Nanjing, China
| | - Xiu-Ling Li
- State Key Laboratory of Reproductive Medicine, Department of Clinical Laboratory, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Tianfei Alley, Nanjing, China
| | - Tian-Ying Zhong
- State Key Laboratory of Reproductive Medicine, Department of Clinical Laboratory, Obstetrics and Gynecology Hospital Affiliated to Nanjing Medical University, Tianfei Alley, Nanjing, China
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Gong T, Wang J, Yang M, Shao Y, Liu J, Wu Q, Xu Q, Wang H, He X, Chen Y, Xu R, Wang Y. Serum homocysteine level and gestational diabetes mellitus: A meta-analysis. J Diabetes Investig 2016; 7:622-8. [PMID: 27180921 PMCID: PMC4931215 DOI: 10.1111/jdi.12460] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Revised: 10/19/2015] [Accepted: 12/03/2015] [Indexed: 12/16/2022] Open
Abstract
Aims/Introduction Homocysteine levels during pregnancy in women with gestational diabetes mellitus (GDM) have been studied; however, it remains unclear whether hyperhomocysteinemia is a useful predictor of insulin resistance. The present study aimed to evaluate the relationship between homocysteine level and GDM. Materials and Methods PubMed, Elsevier, Web of Science and CNKI were searched for relevant studies published up to January 2015. Manual searches of references of the relevant original studies were carried out. Meta‐analysis was used to assessed the relationship between homocysteine level and GDM using the stata 12.0 software. Results Homocysteine levels were significantly elevated in women with GDM compared with those without GDM (weighted mean difference 0.77, 95% confidence interval 0.44–1.10). This evidence was more consistent during the second trimester measurement of homocysteine (weighted mean difference 0.95, 95% confidence interval 0.67–1.23) and for women aged older than 30 years (weighted mean difference 0.90, 95% confidence interval 0.63–1.17). Conclusions The present meta‐analysis shows that homocysteine level is significantly elevated among women with GDM compared with women with normal glucose tolerance, and this finding persists more during the second trimester.
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Affiliation(s)
- Tian Gong
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Jing Wang
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Mei Yang
- School of Public Health, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Yan Shao
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Juning Liu
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Qianlan Wu
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Qinhua Xu
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Huiying Wang
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Xiuyu He
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Yunzhen Chen
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Rong Xu
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
| | - Yun Wang
- Suzhou Maternal and Child Healthcare Institute, Maternal and Child Healthcare Department, Suzhou Municipal Hospital, Affiliated Hospital of Nanjing Medical University, Suzhou, China
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Rajeshkumar NV, Dutta P, Yabuuchi S, de Wilde RF, Martinez GV, Le A, Kamphorst JJ, Rabinowitz JD, Jain SK, Hidalgo M, Dang CV, Gillies RJ, Maitra A. Therapeutic Targeting of the Warburg Effect in Pancreatic Cancer Relies on an Absence of p53 Function. Cancer Res 2015; 75:3355-64. [PMID: 26113084 DOI: 10.1158/0008-5472.can-15-0108] [Citation(s) in RCA: 116] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2015] [Accepted: 05/27/2015] [Indexed: 12/21/2022]
Abstract
The "Warburg effect" describes a peculiar metabolic feature of many solid tumors, namely their increased glucose uptake and high glycolytic rates, which allow cancer cells to accumulate building blocks for the biosynthesis of macromolecules. During aerobic glycolysis, pyruvate is preferentially metabolized to lactate by the enzyme lactate dehydrogenase-A (LDH-A), suggesting a possible vulnerability at this target for small-molecule inhibition in cancer cells. In this study, we used FX11, a small-molecule inhibitor of LDH-A, to investigate this possible vulnerability in a panel of 15 patient-derived mouse xenograft (PDX) models of pancreatic cancer. Unexpectedly, the p53 status of the PDX tumor determined the response to FX11. Tumors harboring wild-type (WT) TP53 were resistant to FX11. In contrast, tumors harboring mutant TP53 exhibited increased apoptosis, reduced proliferation indices, and attenuated tumor growth when exposed to FX11. [18F]-FDG PET-CT scans revealed a relative increase in glucose uptake in mutant TP53 versus WT TP53 tumors, with FX11 administration downregulating metabolic activity only in mutant TP53 tumors. Through a noninvasive quantitative assessment of lactate production, as determined by 13C magnetic resonance spectroscopy (MRS) of hyperpolarized pyruvate, we confirmed that FX11 administration inhibited pyruvate-to-lactate conversion only in mutant TP53 tumors, a feature associated with reduced expression of the TP53 target gene TIGAR, which is known to regulate glycolysis. Taken together, our findings highlight p53 status in pancreatic cancer as a biomarker to predict sensitivity to LDH-A inhibition, with regard to both real-time noninvasive imaging by 13C MRS as well as therapeutic response.
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Affiliation(s)
- N V Rajeshkumar
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Prasanta Dutta
- Department of Cancer Imaging and Metabolism, Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Shinichi Yabuuchi
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Roeland F de Wilde
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Gary V Martinez
- Department of Cancer Imaging and Metabolism, Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Anne Le
- Department of Pathology, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Jurre J Kamphorst
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey
| | - Joshua D Rabinowitz
- Lewis-Sigler Institute for Integrative Genomics, Princeton University, Princeton, New Jersey
| | - Sanjay K Jain
- Center for Infection and Inflammation Imaging Research, The Johns Hopkins University School of Medicine, Baltimore, Maryland
| | - Manuel Hidalgo
- Spanish National Cancer Research Center (CNIO), Melchor Fernandez Almagro 3, Madrid, Spain
| | - Chi V Dang
- Abramson Cancer Center, Abramson Family Cancer Research Institute, University of Pennsylvania, Philadelphia, Pennsylvania.
| | - Robert J Gillies
- Department of Cancer Imaging and Metabolism, Moffitt Cancer Center and Research Institute, Tampa, Florida
| | - Anirban Maitra
- Department of Pathology and Translational Molecular Pathology, Sheikh Ahmad Center for Pancreatic Cancer Research, The University of Texas MD Anderson Cancer Center, Houston, Texas.
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Aires MB, Santos ACVD. Effects of maternal diabetes on trophoblast cells. World J Diabetes 2015; 6:338-344. [PMID: 25789116 PMCID: PMC4360428 DOI: 10.4239/wjd.v6.i2.338] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Revised: 11/15/2014] [Accepted: 12/31/2014] [Indexed: 02/05/2023] Open
Abstract
Diabetes mellitus (DM) is a health condition characterized by hyperglycemia over a prolonged period. There are three main types of DM: DM type 1 (DM1), DM2 and gestational DM (GDM). Maternal diabetes, which includes the occurrence of DM1 and DM2 during pregnancy or GDM, increases the occurrence of gesttional complications and adverse fetal outcomes. The hyperglycemic intrauterine environment affects not only the fetus but also the placental development and function in humans and experimental rodents. The underlying mechanisms are still unclear, but some evidence indicates alterations in trophoblast proliferation, apoptosis and cell cycle control in diabetes. A proper coordination of trophoblast proliferation, differentiation and invasion is required for placental development. Initially, increased expression of proliferative markers in junctional and labyrinth zones of rat placentas and villous cytotrophoblast, syncytiotrophoblast, stromal cells and fetal endothelial cells in human placentas is reported among diabetics. Moreover, reduced apoptotic index and expression of some apoptotic genes are described in placentas of GDM women. In addition, cell cycle regulators including cyclins and cyclin-dependent kinase inhibitors seem to be affected by the hyperglycemic environment. More studies are necessary to check the balance between proliferation, apoptosis and differentiation in trophoblast cells during maternal diabetes.
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Dai Y, Qiu Z, Diao Z, Shen L, Xue P, Sun H, Hu Y. MicroRNA-155 inhibits proliferation and migration of human extravillous trophoblast derived HTR-8/SVneo cells via down-regulating cyclin D1. Placenta 2012; 33:824-9. [PMID: 22858023 DOI: 10.1016/j.placenta.2012.07.012] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2012] [Revised: 06/29/2012] [Accepted: 07/17/2012] [Indexed: 01/28/2023]
Abstract
MiR-155 is known to participate in various cellular processes by targeting gene expression. We previously revealed a link between miR-155 and perturbation of trophoblast invasion and differentiation. This study aimed to investigate the target molecule(s) of miR-155 on the influence on the proliferation and migration of trophoblast cells. Bioinformatics analysis showed that, at the 3' untranslated region (UTR) of cyclin D1, six bases are complementary to the seed region of miR-155. Luciferase assays and cyclin D1 3'UTR transfection assays validated that cyclin D1 3'UTR was the target of miR-155 in HTR-8/SVneo cells. Overexpression of miR-155 in HTR-8/SVneo cells reduced the level of cyclin D1 protein, decreased cell proliferation and invasion, and increased cell number at the G1 stage. Furthermore, the increased expression of miR-155 also regulated the protein levels of kinase inhibitory protein p27 and phosphorylated cytoskeletal protein filamin A. In conclusion, we found that cyclin D1 may be a target of miR-155 in HTR-8/SVneo cells, and demonstrated a negative regulatory role of miR-155 involved in cyclin D1/p27 pathway in proliferation and migration of the cells.
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Affiliation(s)
- Y Dai
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, Nanjing University Medical School, Nanjing 210008, China
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Hübner S, Efthymiadis A. Recent progress in histochemistry and cell biology. Histochem Cell Biol 2012; 137:403-57. [PMID: 22366957 DOI: 10.1007/s00418-012-0933-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/06/2012] [Indexed: 01/06/2023]
Abstract
Studies published in Histochemistry and Cell Biology in the year 2011 represent once more a manifest of established and newly sophisticated techniques being exploited to put tissue- and cell type-specific molecules into a functional context. The review is therefore the Histochemistry and Cell Biology's yearly intention to provide interested readers appropriate summaries of investigations touching the areas of tissue biology, developmental biology, the biology of the immune system, stem cell research, the biology of subcellular compartments, in order to put the message of such studies into natural scientific-/human- and also pathological-relevant correlations.
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Affiliation(s)
- Stefan Hübner
- Institute of Anatomy and Cell Biology, University of Würzburg, Würzburg, Germany.
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