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He Q, Guo X, Lv W, Cui J, Meng J, Gao X, Ma J, Zhou N, Cao Y. Follicular fluid lipidomics analysis reveals altered lipid signatures in patients with polycystic ovary syndrome. J OBSTET GYNAECOL 2024; 44:2378489. [PMID: 39016329 DOI: 10.1080/01443615.2024.2378489] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 07/03/2024] [Indexed: 07/18/2024]
Abstract
BACKGROUND This research investigates the metabolic profiles of follicular fluid (FF) samples from patients with polycystic ovary syndrome (PCOS) undergoing in vitro fertilisation and aims to identify diagnostic and therapeutic biomarkers for PCOS through lipidomic analysis. METHODS We performed non-targeted lipid analysis of FF samples from women with PCOS (n = 6) and normal controls (n = 6) using ultra-high-performance liquid chromatography-tandem mass spectrometry. Differential lipids between the two groups were screened using multidimensional statistical analysis, followed by fold change analysis and t-tests to identify potential PCOS biomarkers. RESULTS Multivariate statistical analysis revealed significant differences in FF lipid levels between the PCOS and control groups. Five different lipids were selected as standards, with p < .05. Phosphatidylcholine (PC), the main differentially expressed lipid, was significantly increased in the FF of the POCS group and was closely related to other lipids. CONCLUSIONS Using ultra-high-performance liquid chromatography-tandem mass spectrometry, we investigated lipid biomarkers based on FF lipidomics to provide useful information for the discovery of diagnostic markers for PCOS. Our study identified five distinct lipids as potential markers of PCOS, with PC being the primary aberrant lipid found in the FF of patients with PCOS.
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Affiliation(s)
- Qing He
- Affiliated Xuzhou Clinical College of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
- Center for Reproductive Medicine, Xuzhou Central Hospital, Xuzhou, China
| | - Xiaoli Guo
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Wenqiang Lv
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Junchao Cui
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jing Meng
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Xiao Gao
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Jiachen Ma
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Nan Zhou
- College of Pharmacy, Jiangsu Key Laboratory of New Drug Research and Clinical Pharmacy, Xuzhou Medical University, Xuzhou, China
| | - Yijuan Cao
- Affiliated Xuzhou Clinical College of Xuzhou Medical University, Xuzhou Medical University, Xuzhou, China
- Center for Reproductive Medicine, Xuzhou Central Hospital, Xuzhou, China
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Hu J, Chen L, Ruan J, Chen X. The role of the annexin A protein family at the maternal-fetal interface. Front Endocrinol (Lausanne) 2024; 15:1314214. [PMID: 38495790 PMCID: PMC10940358 DOI: 10.3389/fendo.2024.1314214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2023] [Accepted: 02/09/2024] [Indexed: 03/19/2024] Open
Abstract
Successful pregnancy requires the tolerance of the maternal immune system for the semi-allogeneic embryo, as well as a synchrony between the receptive endometrium and the competent embryo. The annexin family belongs to calcium-regulated phospholipid-binding protein, which functions as a membrane skeleton to stabilize the lipid bilayer and participate in various biological processes in humans. There is an abundance of the annexin family at the maternal-fetal interface, and it exerts a crucial role in embryo implantation and the subsequent development of the placenta. Altered expression of the annexin family and dysfunction of annexin proteins or polymorphisms of the ANXA gene are involved in a range of pregnancy complications. In this review, we summarize the current knowledge of the annexin A protein family at the maternal-fetal interface and its association with female reproductive disorders, suggesting the use of ANXA as the potential therapeutic target in the clinical diagnosis and treatment of pregnancy complications.
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Affiliation(s)
- Jingwen Hu
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
| | - Lin Chen
- Fertility Preservation Research Center, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
| | - Jing Ruan
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
| | - Xiaoyan Chen
- Maternal-Fetal Medicine Institute, Department of Obstetrics and Gynaecology, Shenzhen Baoan Women’s and Children’s Hospital, Shenzhen University, Shenzhen, China
- Fertility Preservation Research Center, Department of Obstetrics and Gynaecology, The Chinese University of Hong Kong, Hong Kong, Hong Kong SAR, China
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Markantes GK, Panagodimou E, Koika V, Mamali I, Kaponis A, Adonakis G, Georgopoulos NA. Placental mRNA Expression of Neurokinin B Is Increased in PCOS Pregnancies with Female Offspring. Biomedicines 2024; 12:334. [PMID: 38397936 PMCID: PMC10886712 DOI: 10.3390/biomedicines12020334] [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: 01/05/2024] [Revised: 01/21/2024] [Accepted: 01/28/2024] [Indexed: 02/25/2024] Open
Abstract
Current research suggests that polycystic ovary syndrome (PCOS) might originate in utero and implicates the placenta in its pathogenesis. Kisspeptin (KISS1) and neurokinin B (NKB) are produced by the placenta in high amounts, and they have been implicated in several pregnancy complications associated with placental dysfunction. However, their placental expression has not been studied in PCOS. We isolated mRNA after delivery from the placentae of 31 PCOS and 37 control women with term, uncomplicated, singleton pregnancies. The expression of KISS1, NKB, and neurokinin receptors 1, 2, and 3 was analyzed with real-time polymerase chain reaction, using β-actin as the reference gene. Maternal serum and umbilical cord levels of total testosterone, sex hormone-binding globulin (SHBG), free androgen index (FAI), androstenedione, dehydroepiandrosterone sulfate (DHEAS), Anti-Mullerian hormone (AMH), and estradiol were also assessed. NKB placental mRNA expression was higher in PCOS women versus controls in pregnancies with female offspring. NKB expression depended on fetal gender, being higher in pregnancies with male fetuses, regardless of PCOS. NKB was positively correlated with umbilical cord FAI and AMH, and KISS1 was positively correlated with cord testosterone and FAI; there was also a strong positive correlation between NKB and KISS1 expression. Women with PCOS had higher serum AMH and FAI and lower SHBG than controls. Our findings indicate that NKB might be involved in the PCOS-related placental dysfunction and warrant further investigation. Studies assessing the placental expression of NKB should take fetal gender into consideration.
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Affiliation(s)
- Georgios K Markantes
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Evangelia Panagodimou
- Department of Obstetrics and Gynecology, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Vasiliki Koika
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Irene Mamali
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Apostolos Kaponis
- Department of Obstetrics and Gynecology, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - George Adonakis
- Department of Obstetrics and Gynecology, School of Health Sciences, University of Patras, 26504 Patras, Greece
| | - Neoklis A Georgopoulos
- Division of Endocrinology, Department of Internal Medicine, School of Health Sciences, University of Patras, 26504 Patras, Greece
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Hocaoglu M, Demirer S, Karaalp IL, Kaynak E, Attar E, Turgut A, Bayrak EK. EXPRESSION PROFILES OF MIR-155-5P AND MIR-518B MICRORNAS IN CIRCULATING LEUKOCYTES OF THE PREGNANT PATIENTS WITH PREECLAMPSIA AND POLYCYSTIC OVARY SYNDROME. ACTA ENDOCRINOLOGICA (BUCHAREST, ROMANIA : 2005) 2023; 19:426-434. [PMID: 38933243 PMCID: PMC11197839 DOI: 10.4183/aeb.2023.426] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/28/2024]
Abstract
Context Polycystic ovary syndrome (PCOS) is associated with increased prevalence of preeclampsia (PE); microRNAs (miRs) could play an important role in the pathogenesis of PE and PCOS. Objective To investigate the expression levels of miRs 155-5p and 518b in blood leukocytes of patients with PE and PCOS. Design Using real-time quantitative PCR method, miR-155-5p and miR-518b were examined from PE, PCOS, PE+PCOS, and controls. Subjects and Methods The relative expression of the target miRs in patient samples was compared to control samples. The results were calculated as relative quantification values. Results Confounding variables were controlled using analyses for covariance. Significant differences were observed in miR-155-5p (p=0.008) and miRNA-518 (p=0.016) expression levels among the groups. miR-155-5p (p=0.014) and miR-518b (p=0.036) were upregulated in PCOS patients and miR-518b (p=0.028) were increased in cases with PCOS+PE. Near significant difference was found (p=0.06) in miR-518b expression levels in cases with PE, compared to controls. miR-518b was observed to be positively correlated with alanine transaminase in cases with PE (r=0.80; P=0.017) and PE+PCOS (r=0.80, p=0.017). Conclusions Our preliminary findings suggested that expression profiling of miR-155-5p and miR-518b in blood leukocytes were upregulated in pregnant women with PCOS. Moreover, miR-518b was found to be related to PE in cases with PCOS.
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Affiliation(s)
- M. Hocaoglu
- Goztepe Prof Dr. Suleyman Yalcin City Hospital Affiliated to Istanbul Medeniyet University, Department of Obstetrics and Gynecology
| | - S. Demirer
- Aziz Sancar Institute of Experimental Medicine, Istanbul University, Department of Genetics
| | - I. Loclar Karaalp
- Goztepe Prof Dr. Suleyman Yalcin City Hospital Affiliated to Istanbul Medeniyet University, Department of Obstetrics and Gynecology
| | - E. Kaynak
- Aziz Sancar Institute of Experimental Medicine, Istanbul University, Department of Genetics
| | - E. Attar
- Yeditepe University, Faculty of Medicine, Department of Obstetrics and Gynecology
| | - A. Turgut
- Goztepe Prof Dr. Suleyman Yalcin City Hospital Affiliated to Istanbul Medeniyet University, Department of Obstetrics and Gynecology
- Istanbul Medeniyet University, Faculty of Medicine, Department of Obstetrics and Gynecology, Istanbul, Turkey
| | - E. Komurcu Bayrak
- Aziz Sancar Institute of Experimental Medicine, Istanbul University, Department of Genetics
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Chen X, He H, Long B, Wei B, Yang P, Huang X, Wang Q, Lin J, Tang H. Acupuncture regulates the apoptosis of ovarian granulosa cells in polycystic ovarian syndrome-related abnormal follicular development through LncMEG3-mediated inhibition of miR-21-3p. Biol Res 2023; 56:31. [PMID: 37303036 DOI: 10.1186/s40659-023-00441-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2022] [Accepted: 05/17/2023] [Indexed: 06/13/2023] Open
Abstract
BACKGROUND The main features of polycystic ovary syndrome (PCOS) are abnormal follicular development and ovulatory dysfunction, which are caused by excessive apoptosis of ovarian granulosa cells. Acupuncture has been shown to improve follicular development abnormalities in patients with PCOS, but its mechanism is unknown. This study hypothesized that the mechanism of acupuncture on follicular development abnormalities in PCOS patients is the inhibition of granulosa cell apoptosis through LncMEG3-mediated regulation of miR-21-3p. METHODS A PCOS-like rat model was established using subcutaneous injection of dehydroepiandrosterone (DHEA). Acupuncture was performed on rats for 15 d (CV-4, RN-3, CV-6, SP-6 and EX-CA 1). Ovarian morphology was observed by HE staining, and sex hormone and AMH levels were detected by ELISA. Primary granulosa cells were isolated from each group of rats to assess the association of acupuncture treatment, LncMEG3, miR-21-3p, and granulosa cell apoptosis in rats with PCOS. RESULTS LncMEG3 and miR-21-3p were highly expressed in the ovarian granulosa cells of rats with PCOS, and LncMEG3-mediated regulation of miR-21-3p was involved in the development of PCOS in rats. Silencing of MEG3 attenuated sex hormone dysregulation and ovarian histopathological changes in PCOS rats and promoted follicle cell development and maturation. In addition, silencing MEG3 increased the viability and number of granulosa cells. In addition, silencing MEG3 further inhibited early and late apoptosis of ovarian granulosa cells in PCOS rats. Acupuncture improved polycystic ovarian morphology and sex hormone levels in PCOS rats. Acupuncture intervention increased the viability and number of granulosa cells. Acupuncture intervention inhibited early and late apoptosis of ovarian granulosa cells in PCOS rats by targeting miR-21-3p via LncMEG3. CONCLUSION These results suggest that acupuncture can downregulate LncMEG3, thereby targeting and regulating miR-21-3p to suppress early and late granulosa cell apoptosis and normalize their proliferation. These factors ultimately compensate for abnormal follicular development. These findings shed light on the clinical potential of acupuncture as a safe treatment for follicular developmental abnormalities in PCOS.
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Affiliation(s)
- Xiaohong Chen
- Fangchenggang Hospital Affiliated to Guangxi University of Chinese Medicine, Fangchenggang, 538000, Guangxi, China
| | - Hengzhen He
- The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530000, Guangxi, China
| | - Bingcai Long
- Guangxi University of Chinese Medicine, 530200, Nanning, Guangxi, China
| | - Binli Wei
- Fangchenggang Hospital Affiliated to Guangxi University of Chinese Medicine, Fangchenggang, 538000, Guangxi, China
| | - Peng Yang
- Fangchenggang Hospital Affiliated to Guangxi University of Chinese Medicine, Fangchenggang, 538000, Guangxi, China
| | - Xiaoying Huang
- Guangxi University of Chinese Medicine, 530200, Nanning, Guangxi, China
| | - Qian Wang
- The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530000, Guangxi, China
| | - Jing Lin
- The First Affiliated Hospital of Guangxi University of Chinese Medicine, Nanning, 530000, Guangxi, China.
| | - Hongliang Tang
- Fangchenggang Hospital Affiliated to Guangxi University of Chinese Medicine, Fangchenggang, 538000, Guangxi, China
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Heidarzadehpilehrood R, Pirhoushiaran M, Binti Osman M, Abdul Hamid H, Ling KH. Weighted Gene Co-Expression Network Analysis (WGCNA) Discovered Novel Long Non-Coding RNAs for Polycystic Ovary Syndrome. Biomedicines 2023; 11:biomedicines11020518. [PMID: 36831054 PMCID: PMC9953234 DOI: 10.3390/biomedicines11020518] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/03/2023] [Accepted: 02/06/2023] [Indexed: 02/15/2023] Open
Abstract
Polycystic ovary syndrome (PCOS) affects reproductive-age women. This condition causes infertility, insulin resistance, obesity, and heart difficulties. The molecular basis and mechanism of PCOS might potentially generate effective treatments. Long non-coding RNAs (lncRNAs) show control over multifactorial disorders' growth and incidence. Numerous studies have emphasized its significance and alterations in PCOS. We used bioinformatic methods to find novel dysregulated lncRNAs in PCOS. To achieve this objective, the gene expression profile of GSE48301, comprising PCOS patients and normal control tissue samples, was evaluated using the R limma package with the following cut-off criterion: p-value < 0.05. Firstly, weighted gene co-expression network analysis (WGCNA) was used to determine the co-expression genes of lncRNAs; subsequently, hub gene identification and pathway enrichment analysis were used. With the defined criteria, nine novel dysregulated lncRNAs were identified. In WGCNA, different colors represent different modules. In the current study, WGCNA resulted in turquoise, gray, blue, and black co-expression modules with dysregulated lncRNAs. The pathway enrichment analysis of these co-expressed modules revealed enrichment in PCOS-associated pathways, including gene expression, signal transduction, metabolism, and apoptosis. In addition, CCT7, EFTUD2, ESR1, JUN, NDUFAB1, CTTNB1, GRB2, and CTNNB1 were identified as hub genes, and some of them have been investigated in PCOS. This study uncovered nine novel PCOS-related lncRNAs. To confirm how these lncRNAs control translational modification in PCOS, functional studies are required.
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Affiliation(s)
- Roozbeh Heidarzadehpilehrood
- Department of Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Maryam Pirhoushiaran
- Department of Medical Genetics, School of Medicine, Tehran University of Medical Sciences, Tehran 1417613151, Iran
| | - Malina Binti Osman
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
| | - Habibah Abdul Hamid
- Department of Obstetrics & Gynaecology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence: (H.A.H.); (K.-H.L.)
| | - King-Hwa Ling
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang 43400, Malaysia
- Correspondence: (H.A.H.); (K.-H.L.)
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Coenzyme A Restriction as a Factor Underlying Pre-Eclampsia with Polycystic Ovary Syndrome as a Risk Factor. Int J Mol Sci 2022; 23:ijms23052785. [PMID: 35269927 PMCID: PMC8911031 DOI: 10.3390/ijms23052785] [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: 01/25/2022] [Accepted: 02/24/2022] [Indexed: 02/07/2023] Open
Abstract
Pre-eclampsia is the most common pregnancy complication affecting 1 in 20 pregnancies, characterized by high blood pressure and signs of organ damage, most often to the liver and kidneys. Metabolic network analysis of published lipidomic data points to a shortage of Coenzyme A (CoA). Gene expression profile data reveal alterations to many areas of metabolism and, crucially, to conflicting cellular regulatory mechanisms arising from the overproduction of signalling lipids driven by CoA limitation. Adverse feedback loops appear, forming sphingosine-1-phosphate (a cause of hypertension, hypoxia and inflammation), cytotoxic isoketovaleric acid (inducing acidosis and organ damage) and a thrombogenic lysophosphatidyl serine. These also induce mitochondrial and oxidative stress, leading to untimely apoptosis, which is possibly the cause of CoA restriction. This work provides a molecular basis for the signs of pre-eclampsia, why polycystic ovary syndrome is a risk factor and what might be done to treat and reduce the risk of disease.
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Zhen J, Li J, Li X, Wang X, Xiao Y, Sun Z, Yu Q. Downregulating lncRNA NEAT1 induces proliferation and represses apoptosis of ovarian granulosa cells in polycystic ovary syndrome via microRNA-381/IGF1 axis. J Biomed Sci 2021; 28:53. [PMID: 34266430 PMCID: PMC8281489 DOI: 10.1186/s12929-021-00749-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2020] [Accepted: 06/21/2021] [Indexed: 12/25/2022] Open
Abstract
OBJECTIVE Researchers have revealed the combined functions of long noncoding RNAs (lncRNAs) and microRNA (miRNAs) in polycystic ovary syndrome (PCOS). This study aimed to understand the role of nuclear-enriched abundant transcript 1 (NEAT1) and miR-381 involving insulin-like growth factor 1 (IGF1) in PCOS. METHODS PCOS rat model was established by dehydroepiandrosterone induction. NEAT1, miR-381 and IGF1 expression in ovarian granulosa cells of PCOS patients and ovarian tissues of PCOS rats were tested. Bioinformatics website and dual luciferase reporter gene assay were utilized to verify the relationship between NEAT1 and miR-381 and that between miR-381 and IGF1. Levels of sex hormone, pathological changes and ovarian granulosa cell apoptosis in ovarian tissues of PCOS rats were detected. Ovarian granulosa cell proliferation and apoptosis were analyzed in vitro. RESULTS NEAT1 and IGF1 expression increased while miR-381 expression decreased in the ovarian granulosa cells of patients with PCOS and the ovarian tissues of PCOS rats. In in vivo experiments, interference with NEAT1 improved the levels of sex hormones, alleviated pathological changes and suppressed ovarian granulosa cell apoptosis in the ovarian tissues of PCOS rats. In in vitro cell experiments, interference with NEAT1 suppressed apoptosis and enhanced cell proliferation of ovarian granulosa cells. NEAT1 interference-mediated effect would be reversed by up-regulating miR-381. NEAT1 acted as a ceRNA to adsorb miR-381 to target IGF1. Overexpression of IGF1 reversed the inhibitory effect of miR-381 on ovarian granulosa cell apoptosis. CONCLUSION Interference with NEAT1 increases miR-381 and reduces IGF1 levels, effectively improving the levels of sex hormones and reducing the pathological damage of ovarian tissue in rats with PCOS.
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Affiliation(s)
- Jingran Zhen
- Department of Gynecological Endocrinology and Reproduction Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 41 Damucang Hutong, Xicheng, Beijing, China
| | - Jiangli Li
- Department of Obstetrics and Gynecology, Zhongguancun Hospital, Beijing, 100080, China
| | - Xia Li
- Community Health Service Center, Beijing Forestry University, Beijing, 100053, China
| | - Xue Wang
- Department of Gynecological Endocrinology and Reproduction Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 41 Damucang Hutong, Xicheng, Beijing, China
| | - Yaling Xiao
- Department of Gynecological Endocrinology and Reproduction Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 41 Damucang Hutong, Xicheng, Beijing, China
| | - Zhengyi Sun
- Department of Gynecological Endocrinology and Reproduction Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 41 Damucang Hutong, Xicheng, Beijing, China.
| | - Qi Yu
- Department of Gynecological Endocrinology and Reproduction Center, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, 41 Damucang Hutong, Xicheng, Beijing, China.
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Prepregnancy Endocrine, Autoimmune Disorders and the Risks of Gestational Hypertension-Preeclampsia in Primiparas: A Nationwide Population-Based Study in Taiwan. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2020; 17:ijerph17103657. [PMID: 32456015 PMCID: PMC7277106 DOI: 10.3390/ijerph17103657] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/19/2020] [Accepted: 05/21/2020] [Indexed: 12/11/2022]
Abstract
(1) Objective: To assess the risks of gestational hypertension/preeclampsia (GH-PE) in women with prepregnancy endocrine and autoimmune disorders such as polycystic ovarian syndrome (PCOS) and systemic lupus erythematosus (SLE). (2) Methods: In a nationwide population-based longitudinal study, data were retrieved from the 1998 to 2012 Taiwan National Health Insurance Research Database. ICD9-CM codes 256.4, 710.0, and 642.X were identified for the corresponding diagnoses of PCOS, SLE, and GH-PE, respectively, which were further confirmed by inspection of medical claims data for ultrasonography findings, laboratory tests, blood pressure measurements and examinations of urine protein to ensure the accuracy of the diagnoses. To clarify the risks of primiparous GH-PE, the study excluded women diagnosed with PCOS or SLE at <15 or >45 years of age, pre-existing chronic hypertension, GH-PE before PCOS and SLE, and abortion or termination before 20 weeks' gestation. For women affected by prepregnancy PCOS or SLE individually, each pregnant woman was age-matched to four pregnant women without PCOS or SLE. Logistic regression analyses were applied to report odds ratios (ORs) for the risks of GH-PE after adjustment for age, occupation, urbanization, economic status, and other co-morbidities. (3) Results: Among 8070 and 2430 women with prepregnancy PCOS and SLE retrieved from a population of 1,000,000 residents, 1953 (24.20%) and 820 (33.74%) had subsequent primiparous pregnancies that were analyzable and compared with 7812 and 3280 pregnancies without prepregnancy PCOS and SLE, respectively. GH-PE occurred more frequently in pregnancies with prepregnancy PCOS (5.79% vs. 2.23%, p < 0.0001) and SLE (3.41% vs. 1.80%, p < 0.01) as compared to those without PCOS and SLE. Further analysis revealed that prepregnancy PCOS (adjusted OR = 2.36; 95%CI: 1.83-3.05) and SLE (adjusted OR = 1.95; 95%CI: 1.23-3.10) were individually associated with GH-PE. The risk of GH-PE was not reduced in women with prepregnancy PCOS receiving metformin treatment (p = 0.22). (4) Conclusions: Prepregnancy PCOS and SLE are independent and significant risk factors for the occurrence of GH-PE. Because the peripartum complications are much higher among pregnancies with GH-PE, the at-risk woman should be informed and well-prepared during her pregnancy and delivery.
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Amgarth-Duff I, Hosie A, Caplan G, Agar M. A systematic review of the overlap of fluid biomarkers in delirium and advanced cancer-related syndromes. BMC Psychiatry 2020; 20:182. [PMID: 32321448 PMCID: PMC7178636 DOI: 10.1186/s12888-020-02584-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Accepted: 04/05/2020] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND Delirium is a serious and distressing neurocognitive disorder of physiological aetiology that is common in advanced cancer. Understanding of delirium pathophysiology is largely hypothetical, with some evidence for involvement of inflammatory systems, neurotransmitter alterations and glucose metabolism. To date, there has been limited empirical consideration of the distinction between delirium pathophysiology and that of the underlying disease, for example, cancer where these mechanisms are also common in advanced cancer syndromes such as pain and fatigue. This systematic review explores biomarker overlap in delirium, specific advanced cancer-related syndromes and prediction of cancer prognosis. METHODS A systematic review (PROSPERO CRD42017068662) was conducted, using MEDLINE, PubMed, Embase, CINAHL, CENTRAL and Web of Science, to identify body fluid biomarkers in delirium, cancer prognosis and advanced cancer-related syndromes of interest. Studies were excluded if they reported delirium tremens only; did not measure delirium using a validated tool; the sample had less than 75% of participants with advanced cancer; measured tissue, genetic or animal biomarkers, or were conducted post-mortem. Articles were screened for inclusion independently by two authors, and data extraction and an in-depth quality assessment conducted by one author, and checked by two others. RESULTS The 151 included studies were conducted in diverse settings in 32 countries between 1985 and 2017, involving 28130 participants with a mean age of 69.3 years. Seventy-one studies investigated delirium biomarkers, and 80 studies investigated biomarkers of an advanced cancer-related syndrome or cancer prognosis. Overall, 41 biomarkers were studied in relation to both delirium and either an advanced cancer-related syndrome or prognosis; and of these, 24 biomarkers were positively associated with either delirium or advanced cancer syndromes/prognosis in at least one study. The quality assessment showed large inconsistency in reporting. CONCLUSION There is considerable overlap in the biomarkers in delirium and advanced cancer-related syndromes. Improving the design of delirium biomarker studies and considering appropriate comparator/controls will help to better understanding the discrete pathophysiology of delirium in the context of co-existing illness.
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Affiliation(s)
- Ingrid Amgarth-Duff
- University of Technology Sydney, Faculty of Health, IMPACCT -Improving Palliative, Aged and Chronic Care through Clinical Research and Translation, Sydney, NSW, Australia.
| | - Annmarie Hosie
- grid.117476.20000 0004 1936 7611University of Technology Sydney, Faculty of Health, IMPACCT -Improving Palliative, Aged and Chronic Care through Clinical Research and Translation, Sydney, NSW Australia
| | - Gideon Caplan
- grid.1005.40000 0004 4902 0432Prince of Wales Clinical School, University of New South Wales, Sydney, NSW Australia ,grid.415193.bDepartment of Geriatric Medicine, Prince of Wales Hospital, Sydney, NSW Australia
| | - Meera Agar
- grid.117476.20000 0004 1936 7611University of Technology Sydney, Faculty of Health, IMPACCT -Improving Palliative, Aged and Chronic Care through Clinical Research and Translation, Sydney, NSW Australia ,grid.1005.40000 0004 4902 0432South West Sydney Clinical School, University of New South Wales, Liverpool, New South Wales Australia ,grid.429098.eClinical Trials, Ingham Institute of Applied Medical Research, Liverpool, New South Wales Australia
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11
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Thromboinflammatory changes in plasma proteome of pregnant women with PCOS detected by quantitative label-free proteomics. Sci Rep 2019; 9:17578. [PMID: 31772271 PMCID: PMC6879536 DOI: 10.1038/s41598-019-54067-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Accepted: 10/25/2019] [Indexed: 12/14/2022] Open
Abstract
Polycystic ovary syndrome (PCOS) is the most common endocrinological disorder of fertile-aged women. Several adverse pregnancy outcomes and abnormalities of the placenta have been associated with PCOS. By using quantitative label-free proteomics we investigated whether changes in the plasma proteome of pregnant women with PCOS could elucidate the mechanisms behind the pathologies observed in PCOS pregnancies. A total of 169 proteins with ≥2 unique peptides were detected to be differentially expressed between women with PCOS (n = 7) and matched controls (n = 20) at term of pregnancy, out of which 35 were significant (p-value < 0.05). A pathway analysis revealed that networks related to humoral immune responses, inflammatory responses, cardiovascular disease and cellular growth and proliferation were affected by PCOS. Classification of cases and controls was carried out using principal component analysis, orthogonal projections on latent structure-discriminant analysis (OPLS-DA), hierarchical clustering, self-organising maps and ROC-curve analysis. The most significantly enriched proteins in PCOS were properdin and insulin-like growth factor II. In the dataset, properdin had the best predictive accuracy for PCOS (AUC = 1). Additionally, properdin abundances correlated with AMH levels in pregnant women.
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12
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Ouni E, Vertommen D, Amorim CA. The Human Ovary and Future of Fertility Assessment in the Post-Genome Era. Int J Mol Sci 2019; 20:E4209. [PMID: 31466236 PMCID: PMC6747278 DOI: 10.3390/ijms20174209] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 12/27/2022] Open
Abstract
Proteomics has opened up new avenues in the field of gynecology in the post-genome era, making it possible to meet patient needs more effectively and improve their care. This mini-review aims to reveal the scope of proteomic applications through an overview of the technique and its applications in assisted procreation. Some of the latest technologies in this field are described in order to better understand the perspectives of its clinical applications. Proteomics seems destined for a promising future in gynecology, more particularly in relation to the ovary. Nevertheless, we know that reproductive biology proteomics is still in its infancy and major technical and ethical challenges must first be overcome.
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Affiliation(s)
- Emna Ouni
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Didier Vertommen
- PHOS Unit, Institut de Duve, Université Catholique de Louvain, 1200 Brussels, Belgium
| | - Christiani A Amorim
- Pôle de Recherche en Gynécologie, Institut de Recherche Expérimentale et Clinique, Université Catholique de Louvain, 1200 Brussels, Belgium.
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13
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Panner Selvam MK, Baskaran S, Agarwal A. Proteomics of reproduction: Prospects and perspectives. Adv Clin Chem 2019; 92:217-243. [PMID: 31472755 DOI: 10.1016/bs.acc.2019.04.005] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
In recent years, proteomics has been used widely in reproductive research in order to understand the molecular mechanisms related to gametes at the cellular level and the role of proteins involved in fertilization. Network and pathway analysis using bioinformatic tools have paved way to obtain a wider picture on the possible pathways associated with the key differentially expressed proteins (DEPs) and its implication in various infertility scenarios. A brief overview of advanced techniques and bioinformatic tools used for reproductive proteomics is presented. Key findings of proteomic-based studies on male and female reproduction are also presented. Furthermore, the chapter sheds light on the cellular pathways and potential biomarkers associated with male and female infertility. Proteomics coupled with bioinformatic analysis provides an ideal platform for non-invasive management of infertility in couples.
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14
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Wen Y, Peng L, Xu R, Zang N, Huang Q, Zhong M. Maternal serum trimethylamine-N-oxide is significantly increased in cases with established preeclampsia. Pregnancy Hypertens 2018; 15:114-117. [PMID: 30825906 DOI: 10.1016/j.preghy.2018.12.001] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 11/22/2018] [Accepted: 12/10/2018] [Indexed: 01/22/2023]
Abstract
PURPOSE To compare the levels of trimethylamine-N-oxide (TMAO) in sera of normal and preeclamptic pregnancies and to explore whether serum TMAO level was associated with the severity of preeclampsia. MATERIALS AND METHODS Eighty-six pregnant women in the third trimester were enrolled in this case control study. Levels of TMAO were quantified by a novel liquid chromatography/tandem mass spectrometry-based method in fasting serum samples from 43 preeclamptic women and 43 normotensive controls. Clinical characteristics, serum biomarkers of inflammation (IL-1β) and biomarkers of endothelial dysfunction (sVCAM-1, sFlt-1) were assessed. RESULTS TMAO levels were significantly higher in women with preeclampsia than those with normal pregnancy. The serum levels of TMAO were positively correlated with systolic blood pressure (r = 0.602, P < 0.001), urinary protein levels (r = 0.557, P < 0.001) and the serum levels of IL-1β (r = 0.633, P < 0.001), sVCAM-1 (r = 0.719, P < 0.001) as well as sFlt-1 (r = 0.763, P < 0.001) in patients with PE. CONCLUSIONS Elevated TMAO levels are associated with higher risk of preeclampsia and correlate with increased systemic inflammation and endothelial dysfunction. Further validation of these findings with more robust multicenter prospective and longitudinal characterization of maternal serum TMAO in pregnancy may be carried out in subsequent investigations to determine its suitability as a predictive biomarker for preeclampsia.
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Affiliation(s)
- Yuwen Wen
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China; First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Linrui Peng
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China; First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Ruoting Xu
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China; First School of Clinical Medicine, Southern Medical University, Guangzhou 510515, Guangdong, China; Division of Neurology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Nailiang Zang
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
| | - Qitao Huang
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China.
| | - Mei Zhong
- Division of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, Guangdong, China
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15
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Dunk CE, Pappas JJ, Lye P, Kibschull M, Javam M, Bloise E, Lye SJ, Szyf M, Matthews SG. P-Glycoprotein (P-gp)/ABCB1 plays a functional role in extravillous trophoblast (EVT) invasion and is decreased in the pre-eclamptic placenta. J Cell Mol Med 2018; 22:5378-5393. [PMID: 30256530 PMCID: PMC6201374 DOI: 10.1111/jcmm.13810] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2018] [Accepted: 06/29/2018] [Indexed: 01/01/2023] Open
Abstract
Dysregulation of trophoblast differentiation is implicated in the placental pathologies of intrauterine growth restriction and pre‐eclampsia. P‐glycoprotein (P‐gp encoded by ABCB1) is an ATP‐binding cassette transporter present in the syncytiotrophoblast layer of the placenta where it acts as a molecular sieve. In this study, we show that P‐gp is also expressed in the proliferating cytotrophoblast (CT), the syncytiotrophoblast (ST) and the extravillous trophoblast (EVT), suggesting our hypothesis of a functional role for P‐gp in placental development. Silencing of ABCB1, via siRNA duplex, results in dramatically reduced invasion and migration, and increased tube formation and fusion in the EVT‐like HTR8/SVneo cell line. In both EVT and CT explant differentiation experiments, silencing of ABCB1 leads to induction of the fusion markers human hCG, ERVW‐1 and GJA1 and terminal differentiation of both trophoblast subtypes. Moreover, P‐gp protein levels are decreased in both the villous and the EVT of severe early‐onset pre‐eclamptic placentas. We conclude that, in addition to its role as a syncytial transporter, P‐gp is a key factor in the maintenance of both CT and EVT lineages and that its decrease in severe pre‐eclampsia may contribute to the syncytial and EVT placental pathologies associated with this disease.
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Affiliation(s)
- Caroline E Dunk
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Jane J Pappas
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada.,Department of Physiology, University of Toronto, Toronto, Canada
| | - Phetcharawan Lye
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Mark Kibschull
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada
| | - Mohsen Javam
- Department of Physiology, University of Toronto, Toronto, Canada
| | - Enrrico Bloise
- Department of Physiology, University of Toronto, Toronto, Canada.,Department of Morphology, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Stephen J Lye
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Physiology, University of Toronto, Toronto, Canada.,Departments of Obstetrics and Gynecology and Medicine, University of Toronto, Toronto, Canada
| | - Moshe Szyf
- Department of Pharmacology and Therapeutics, McGill University, Montreal, Canada
| | - Stephen G Matthews
- Lunenfeld Tanenbaum Research Institute, Sinai Health System, Toronto, Canada.,Department of Physiology, University of Toronto, Toronto, Canada.,Departments of Obstetrics and Gynecology and Medicine, University of Toronto, Toronto, Canada
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16
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Haapalainen AM, Karjalainen MK, Daddali R, Ohlmeier S, Anttonen J, Määttä TA, Salminen A, Mahlman M, Bergmann U, Mäkikallio K, Ojaniemi M, Hallman M, Rämet M. Expression of CPPED1 in human trophoblasts is associated with timing of term birth. J Cell Mol Med 2018; 22:968-981. [PMID: 29193784 PMCID: PMC5783879 DOI: 10.1111/jcmm.13402] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Accepted: 08/29/2017] [Indexed: 12/15/2022] Open
Abstract
Understanding of timing of human parturition is incomplete. Therefore, we carried out proteomic analyses of full-term placentas from uncomplicated pregnancies to identify protein signatures associated with the onset of spontaneous delivery. We found quantitative associations of 10 proteins with spontaneous term birth, evident either in the basal or in the chorionic plates or in both. Additional 18 proteins were associated according to the location within placenta indicating local variations in protein amounts. Calcineurin-like phosphoesterase domain-containing 1 (CPPED1), a phosphatase previously suggested dephosphorylating AKT1/PKB, was one of the identified proteins. qRT-PCR revealed the mRNA level of CPPED1 was higher in elective caesarean deliveries than in spontaneous births, while immunohistochemistry showed CPPED1 in cytotrophoblasts, syncytiotrophoblasts and extravillous trophoblasts. Noteworthy, phosphorylation status of AKT1 did not differ between placentas from elective caesarean and spontaneous deliveries. Additionally, analyses of samples from infants indicated that single-nucleotide polymorphisms rs11643593 and rs8048866 of CPPED1 were associated with duration of term pregnancy. Finally, post-transcriptional silencing of CPPED1 in cultured HTR8/SVneo cells by siRNAs affected gene expression in pathways associated with inflammation and blood vessel development. We postulate that functions regulated by CPPED1 in trophoblasts at choriodecidual interphase have a role in the induction of term labour, but it may be independent of AKT1.
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Affiliation(s)
- Antti M. Haapalainen
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Minna K. Karjalainen
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Ravindra Daddali
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Steffen Ohlmeier
- Proteomics Core FacilityBiocenter OuluFaculty of Biochemistry and Molecular MedicineUniversity of OuluOuluFinland
| | - Julia Anttonen
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Tomi A. Määttä
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Annamari Salminen
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Mari Mahlman
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Ulrich Bergmann
- Proteomics Core FacilityBiocenter OuluFaculty of Biochemistry and Molecular MedicineUniversity of OuluOuluFinland
| | - Kaarin Mäkikallio
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Obstetrics and GynecologyOulu University HospitalOuluFinland
- Department of Obstetrics and GynecologyTurku University Hospital and University of TurkuTurkuFinland
| | - Marja Ojaniemi
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Mikko Hallman
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
| | - Mika Rämet
- PEDEGO Research Unit and Medical Research Center OuluUniversity of OuluOuluFinland
- Department of Children and AdolescentsOulu University HospitalOuluFinland
- BioMediTech Institute and Faculty of Medical and Life SciencesUniversity of TampereTampereFinland
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17
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Galazis N. Re: Pregnancy and perinatal outcomes in women with polycystic ovary syndrome and twin births: a population-based cohort study. BJOG 2016; 123:838. [PMID: 27149350 DOI: 10.1111/1471-0528.13798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/22/2015] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas Galazis
- London North West Healthcare NHS Trust, Northwick Park Hospital, Harrow, UK
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18
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Proteomic analysis of preovulatory follicular fluid reveals differentially abundant proteins in less fertile dairy cows. J Proteomics 2016; 139:122-9. [PMID: 27003612 DOI: 10.1016/j.jprot.2016.03.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2015] [Revised: 02/23/2016] [Accepted: 03/11/2016] [Indexed: 11/23/2022]
Abstract
UNLABELLED The follicular fluid (FF) proteome can provide an indication of follicular quality. High-yielding dairy cows suffer from low fertility, which could be related to follicular function. However, the proteome of preovulatory follicles has never been described in cows. Our objectives were to: 1) define the bovine preovulatory FF proteome, and 2) examine differentially abundant proteins in FF of controls (CTL, n=10) and less fertile cows (LFC; failed to conceive following ≥6 inseminations, n=8). Follicles ≥7mm in diameter were aspirated in vivo, and estradiol (E2) and progesterone (P4) were examined. The FF from 10 preovulatory follicles (E2/P4>1) was analyzed; E2 was higher and follicle diameter tended to be larger in LFC. As aspirations were conducted at a fixed time, this suggests accelerated follicular growth in LFC. The 219 identified and quantified proteins consisted mainly of binding proteins, proteases, receptor ligands, enzymes and transporters. Differential abundance of 8 relevant proteins was found in LFC compared to CTL: SERPINA1, TIMP2, ITIH1, HSPG2, C8A, COL1A2, F2, and IL1RAP. These proteins could influence follicular function-e.g., decreased SERPINA1 may be related to accelerated follicular growth-and therefore, further examination of their roles in the etiology of LFC is warranted. SIGNIFICANCE High yielding dairy cows suffer from infertility that leads to major economic losses worldwide. In Israel, about 30% of dairy cows fail to conceive following ≥4 inseminations. The etiology of this low fertility is multifactorial and remains a serious challenge. Follicular fluid proteome can provide indication to follicular quality, yet the proteome of pre-ovulatory follicles has not been described in cows. This work examined the differential abundance of proteins in less fertile dairy cows compared to controls, and found 8 relevant novel proteins that could influence follicular function. The role of these proteins in the etiology of less fertile cows should be further examined.
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19
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Kell DB, Kenny LC. A Dormant Microbial Component in the Development of Preeclampsia. Front Med (Lausanne) 2016; 3:60. [PMID: 27965958 PMCID: PMC5126693 DOI: 10.3389/fmed.2016.00060] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 11/04/2016] [Indexed: 12/12/2022] Open
Abstract
Preeclampsia (PE) is a complex, multisystem disorder that remains a leading cause of morbidity and mortality in pregnancy. Four main classes of dysregulation accompany PE and are widely considered to contribute to its severity. These are abnormal trophoblast invasion of the placenta, anti-angiogenic responses, oxidative stress, and inflammation. What is lacking, however, is an explanation of how these themselves are caused. We here develop the unifying idea, and the considerable evidence for it, that the originating cause of PE (and of the four classes of dysregulation) is, in fact, microbial infection, that most such microbes are dormant and hence resist detection by conventional (replication-dependent) microbiology, and that by occasional resuscitation and growth it is they that are responsible for all the observable sequelae, including the continuing, chronic inflammation. In particular, bacterial products such as lipopolysaccharide (LPS), also known as endotoxin, are well known as highly inflammagenic and stimulate an innate (and possibly trained) immune response that exacerbates the inflammation further. The known need of microbes for free iron can explain the iron dysregulation that accompanies PE. We describe the main routes of infection (gut, oral, and urinary tract infection) and the regularly observed presence of microbes in placental and other tissues in PE. Every known proteomic biomarker of "preeclampsia" that we assessed has, in fact, also been shown to be raised in response to infection. An infectious component to PE fulfills the Bradford Hill criteria for ascribing a disease to an environmental cause and suggests a number of treatments, some of which have, in fact, been shown to be successful. PE was classically referred to as endotoxemia or toxemia of pregnancy, and it is ironic that it seems that LPS and other microbial endotoxins really are involved. Overall, the recognition of an infectious component in the etiology of PE mirrors that for ulcers and other diseases that were previously considered to lack one.
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Affiliation(s)
- Douglas B. Kell
- School of Chemistry, The University of Manchester, Manchester, UK
- The Manchester Institute of Biotechnology, The University of Manchester, Manchester, UK
- Centre for Synthetic Biology of Fine and Speciality Chemicals, The University of Manchester, Manchester, UK
- *Correspondence: Douglas B. Kell,
| | - Louise C. Kenny
- The Irish Centre for Fetal and Neonatal Translational Research (INFANT), University College Cork, Cork, Ireland
- Department of Obstetrics and Gynecology, University College Cork, Cork, Ireland
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20
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Galazis N. Polycystic ovary syndrome and pregnancy. Hum Reprod Update 2015; 22:277. [PMID: 26604210 DOI: 10.1093/humupd/dmv053] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Nicolas Galazis
- London North West Healthcare NHS Trust, Northwick Park Hospital, Watford Road, Harrow HA1 3UJ, UK
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21
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Vannuccini S, Clifton VL, Fraser IS, Taylor HS, Critchley H, Giudice LC, Petraglia F. Infertility and reproductive disorders: impact of hormonal and inflammatory mechanisms on pregnancy outcome. Hum Reprod Update 2015; 22:104-15. [PMID: 26395640 PMCID: PMC7289323 DOI: 10.1093/humupd/dmv044] [Citation(s) in RCA: 210] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 09/03/2015] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND Reproductive disorders and infertility are associated with the risk of obstetric complications and have a negative impact on pregnancy outcome. Affected patients often require assisted reproductive technologies (ART) to conceive, and advanced maternal age is a further confounding factor. The challenge is to dissect causation, correlation and confounders in determining how infertility and reproductive disorders individually or together predispose women to poor pregnancy outcomes. METHODS The published literature, to June 2015, was searched using PubMed, summarizing all evidences concerning the perinatal outcome of women with infertility and reproductive disorders and the potential mechanisms that may influence poor pregnancy outcome. RESULTS Reproductive disorders (endometriosis, adenomyosis, polycystic ovary syndrome and uterine fibroids) and unexplained infertility share inflammatory pathways, hormonal aberrations, decidual senescence and vascular abnormalities that may impair pregnancy success through common mechanisms. Either in combination or alone, these disorders results in an increased risk of preterm birth, fetal growth restriction, placental pathologies and hypertensive disorders. Systemic hormonal aberrations, and inflammatory and metabolic factors acting on endometrium, myometrium, cervix and placenta are all associated with an aberrant milieu during implantation and pregnancy, thus contributing to the genesis of obstetric complications. Some of these features have been also described in placentas from ART. CONCLUSIONS Reproductive disorders are common in women of childbearing age and rarely occur in isolation. Inflammatory, endocrine and metabolic mechanisms associated with these disorders are responsible for an increased incidence of obstetric complications. These patients should be recognized as 'high risk' for poor pregnancy outcomes and monitored with specialized follow-up. There is a real need for development of evidence-based recommendations about clinical management and specific obstetric care pathways for the introduction of prompt preventative care measures.
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Affiliation(s)
- Silvia Vannuccini
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecology, University of Siena, Siena, Italy
| | - Vicki L Clifton
- Robinson Research Institute, University of Adelaide, Adelaide, Australia
| | - Ian S Fraser
- Department of Obstetrics and Gynaecology, Center for Women's Health, University of New South Wales, Sydney, Australia
| | - Hugh S Taylor
- Department of Obstetrics, Gynecology and Reproductive Sciences, Yale University, New Haven, CT, USA
| | - Hilary Critchley
- MRC Centre for Reproductive Health, University of Edinburgh, The Queen's Medical Research Institute, Edinburgh, UK
| | - Linda C Giudice
- Department of Obstetrics, Gynecology and Reproductive Sciences, University of California, 550 16th Street, Floor 7, Box 0132, San Francisco, CA 94143, USA
| | - Felice Petraglia
- Department of Molecular and Developmental Medicine, Obstetrics and Gynecology, University of Siena, Siena, Italy
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22
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Palomba S, de Wilde MA, Falbo A, Koster MP, La Sala GB, Fauser BC. Pregnancy complications in women with polycystic ovary syndrome. Hum Reprod Update 2015; 21:575-592. [DOI: 10.1093/humupd/dmv029] [Citation(s) in RCA: 361] [Impact Index Per Article: 40.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/30/2023] Open
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23
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A Review: Proteomics in Nasopharyngeal Carcinoma. Int J Mol Sci 2015; 16:15497-530. [PMID: 26184160 PMCID: PMC4519910 DOI: 10.3390/ijms160715497] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2015] [Revised: 06/08/2015] [Accepted: 07/01/2015] [Indexed: 12/24/2022] Open
Abstract
Although radiotherapy is generally effective in the treatment of major nasopharyngeal carcinoma (NPC), this treatment still makes approximately 20% of patients radioresistant. Therefore, the identification of blood or biopsy biomarkers that can predict the treatment response to radioresistance and that can diagnosis early stages of NPC would be highly useful to improve this situation. Proteomics is widely used in NPC for searching biomarkers and comparing differentially expressed proteins. In this review, an overview of proteomics with different samples related to NPC and common proteomics methods was made. In conclusion, identical proteins are sorted as follows: Keratin is ranked the highest followed by such proteins as annexin, heat shock protein, 14-3-3σ, nm-23 protein, cathepsin, heterogeneous nuclear ribonucleoproteins, enolase, triosephosphate isomerase, stathmin, prohibitin, and vimentin. This ranking indicates that these proteins may be NPC-related proteins and have potential value for further studies.
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24
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Benkhalifa M, Madkour A, Louanjli N, Bouamoud N, Saadani B, Kaarouch I, Chahine H, Sefrioui O, Merviel P, Copin H. From global proteome profiling to single targeted molecules of follicular fluid and oocyte: contribution to embryo development and IVF outcome. Expert Rev Proteomics 2015; 12:407-23. [DOI: 10.1586/14789450.2015.1056782] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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