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So Young Lee, Yun Young Lee, Joong Sub Choi, Mee-Sup Yoon, Joong-Soo Han
Decidualization of human endometrial stromal cells (hESCs) is crucial for successful uterine implantation and maintaining pregnancy. We previously reported that phospholipase D1 (PLD1) is required for cAMP-induced decidualization of hESCs. However, the mechanism by which phosphatidic acid (PA), the product of PLD1 action, might regulate decidualization is not known. We confirmed that PA induced decidualization of hESCs by observing morphological changes and measuring increased levels of decidualization markers such as IGFBP1 and prolactin transcripts (P < 0...
October 3, 2016: FEBS Journal
Laura G Goetz, Ramanaiah Mamillapalli, Hugh S Taylor
The gynecological disease endometriosis is characterized by the deposition and proliferation of the endometrial cells outside the uterus and is linked to low body mass index (BMI) clinically. Gene expression in the liver of these women has not been reported. We hypothesized that endometriosis may impact hepatic gene expression to promote a low BMI. To determine the effect of endometriosis on liver gene expression, we induced endometriosis in female mice by suturing donor mouse endometrium into the peritoneal cavity and measuring the weights of these mice...
September 14, 2016: Biology of Reproduction
Min Jin, Ping-Ping Lv, Tian-Tian Yu, Jin-Ming Shen, Chun Feng, He-Feng Huang
Our previous study indicated that maternal high estrogen environment in the first trimester is correlated with increased risks of low birth weight (LBW) and adult diseases. The present study aimed to establish an animal model to confirm such an effect in mice; and to further explore 5 the mechanism involved. A mouse model with high estradiol (E2) exposure during early pregnancy was established, and the birth weight, growth after birth, and expression levels of insulin-like growth factor binding protein 1 (IGFBP1) of pups were examined, respectively...
September 14, 2016: Biology of Reproduction
Anaïs Boglino, Marian Ponce, Xavier Cousin, Enric Gisbert, Manuel Manchado
The aim of this study was the characterization of transcriptional regulatory pathways mediated by retinoic acid (RA) in Senegalese sole larvae. For this purpose, pre-metamorphic larvae were treated with a low concentration of DEAB, an inhibitor of RALDH enzyme, until the end of metamorphosis. No differences in growth, eye migration or survival were observed. Nevertheless, gene expression analysis revealed a total of 20 transcripts differentially expressed during larval development and only six related with DEAB treatments directly involved in RA metabolism and actions (rdh10a, aldh1a2, crbp1, igf2r, rarg and cyp26a1) to adapt to a low-RA environment...
September 10, 2016: Comparative Biochemistry and Physiology. Part B, Biochemistry & Molecular Biology
Qing Tang, JingJing Wu, Fang Zheng, YuQing Chen, Swei Sunny Hann
Emodin has anti-neoplastic activities on multiple tumors. In here, we showed that emodin inhibit cell cycle arrest of non-small-cell lung cancer (NSCLC) cells. To further explore this, we found that emodin increased PPARγ protein and luciferase activity, which were abolished by inhibitors of MEK/ERK (PD98059) and AMPK (Compound C). Silencing of PPARγ abrogated emodin-inhibited cell growth and cell cycle arrest. Furthermore, emodin elevated IGFBP1 mRNA, protein, and promoter activity through activation of PPARγ...
September 8, 2016: Biochimica et Biophysica Acta
Xue Zhang, Li-Juan Fu, Xue-Qing Liu, Zhuo-Ying Hu, Yu Jiang, Ru-Fei Gao, Qian Feng, Xi Lan, Yan-Qing Geng, Xue-Mei Chen, Jun-Lin He, Ying-Xiong Wang, Yu-Bin Ding
STUDY QUESTION: Does nm23 have functional significance in decidualization in mice and humans? SUMMARY ANSWER: nm23 affects decidualization via the phosphoinositide 3 kinase/mammalian target of rapamycin (PI3K-Akt-mTOR) signaling pathways in mouse endometrial stromal cells (ESCs; mESCs) and human ESCs. WHAT IS KNOWN ALREADY: The function of nm23 in suppressing metastasis has been demonstrated in a variety of cancer types. nm23 also participates in the control of DNA replication and cell proliferation and differentiation...
October 2016: Human Reproduction
Jing Lu, Ka-Cheuk Liu, Nadja Schulz, Christos Karampelias, Jérémie Charbord, Agneta Hilding, Linn Rautio, Philippe Bertolino, Claes-Göran Östenson, Kerstin Brismar, Olov Andersson
There is great interest in therapeutically harnessing endogenous regenerative mechanisms to increase the number of β cells in people with diabetes. By performing whole-genome expression profiling of zebrafish islets, we identified 11 secreted proteins that are upregulated during β-cell regeneration. We then tested the proteins' ability to potentiate β-cell regeneration in zebrafish at supraphysiological levels. One protein, insulin-like growth factor (Igf) binding-protein 1 (Igfbp1), potently promoted β-cell regeneration by potentiating α- to β-cell transdifferentiation...
September 15, 2016: EMBO Journal
Dongmei Zhang, Xinlian Chang, Jing Bai, Zi-Jiang Chen, Wei-Ping Li, Cong Zhang
Preeclampsia (PE), a pregnancy-specific disorder characterized by hypertension and proteinuria beginning after 20 wk of pregnancy, is a major cause of maternal and fetal morbidity and mortality. Delivery of the placenta reverses the immediate clinical manifestations and remains the only reliable treatment for PE. Up to now, the causes of PE are not entirely clear. Human cyclooxygenase 2 (COX2, encoded by PTGS2) is a highly inducible enzyme and regulates inflammation, differentiation, mitogenesis, and angiogenesis...
September 2016: Biology of Reproduction
Vasanthi Soumya, Renjini A Padmanabhan, Shiny Titus, Malini Laloraya
PROBLEM: Autoimmune polyendocrinopathy, candidiasis, and ectodermal dystrophy (APECED, APS-1) patients characterized by Aire (autoimmune regulator) mutations and Aire homozygous knockouts (Aire(-/-) ) exhibit infertility. It is not clear as to what contributes to infertility in the above. METHOD OF STUDY: This study investigates the expression of "AIRE in the uterus" and its contribution to early pregnancy of mice by using quantitative real-time PCR analysis, immunohistochemistry, Western blotting, and in vivo Aire silencing experiments...
September 2016: American Journal of Reproductive Immunology: AJRI
F Lamers, M Bot, R Jansen, M K Chan, J D Cooper, S Bahn, B W J H Penninx
Depression is a highly heterogeneous disorder. Accumulating evidence suggests biological and genetic differences between subtypes of depression that are homogeneous in symptom presentation. We aimed to evaluate differences in serum protein profiles between persons with atypical and melancholic depressive subtypes, and compare these profiles with serum protein levels of healthy controls. We used the baseline data from the Netherlands Study of Depression and Anxiety on 414 controls, 231 persons with a melancholic depressive subtype and 128 persons with an atypical depressive subtype for whom the proteomic data were available...
2016: Translational Psychiatry
Jieun Lee, Joseph Choi, Susanna Scafidi, Michael J Wolfgang
The liver is critical for maintaining systemic energy balance during starvation. To understand the role of hepatic fatty acid β-oxidation on this process, we generated mice with a liver-specific knockout of carnitine palmitoyltransferase 2 (Cpt2(L-/-)), an obligate step in mitochondrial long-chain fatty acid β-oxidation. Fasting induced hepatic steatosis and serum dyslipidemia with an absence of circulating ketones, while blood glucose remained normal. Systemic energy homeostasis was largely maintained in fasting Cpt2(L-/-) mice by adaptations in hepatic and systemic oxidative gene expression mediated in part by Pparα target genes including procatabolic hepatokines Fgf21, Gdf15, and Igfbp1...
June 28, 2016: Cell Reports
Shuang Wu, Tatsuo Kanda, Shingo Nakamoto, Xia Jiang, Masato Nakamura, Reina Sasaki, Yuki Haga, Hiroshi Shirasawa, Osamu Yokosuka
Elevated levels of inflammatory cytokines such as tumor necrosis factor-α (TNF-α) and interleukin (IL)-1β are often observed in the sera of hepatitis B virus (HBV)-infected patients. It is well known that these cytokines activate nuclear factor-κB (NF-κB)-signaling, and are associated with endoplasmic reticulum (ER) stress. We investigated whether HBV or HBV X protein (HBx) enhanced the activation of NF-κB in the presence of TNF and/or IL-1β, and their effects on the expression of metabolic pathway‑associated genes...
August 2016: International Journal of Molecular Medicine
Nathaniel G Girer, Iain A Murray, Curtis J Omiecinski, Gary H Perdew
The Aryl hydrocarbon receptor (AHR) is a ligand-activated transcription factor involved in many physiological processes. Several studies indicate that AHR is also involved in energy homeostasis. Fibroblast growth factor 21 (FGF21) is an important regulator of the fasting and feeding responses. When administered to various genetic and diet-induced mouse models of obesity, FGF21 can attenuate obesity-associated morbidities. Here, we explore the role of AHR in hepatic Fgf21 expression through the use of a conditional, hepatocyte-targeted AHR knock-out mouse model (Cre(Alb)Ahr(Fx/Fx))...
July 15, 2016: Journal of Biological Chemistry
Carolina Bonilla, Sarah J Lewis, Mari-Anne Rowlands, Tom R Gaunt, George Davey Smith, David Gunnell, Tom Palmer, Jenny L Donovan, Freddie C Hamdy, David E Neal, Rosalind Eeles, Doug Easton, Zsofia Kote-Jarai, Ali Amin Al Olama, Sara Benlloch, Kenneth Muir, Graham G Giles, Fredrik Wiklund, Henrik Grönberg, Christopher A Haiman, Johanna Schleutker, Børge G Nordestgaard, Ruth C Travis, Nora Pashayan, Kay-Tee Khaw, Janet L Stanford, William J Blot, Stephen Thibodeau, Christiane Maier, Adam S Kibel, Cezary Cybulski, Lisa Cannon-Albright, Hermann Brenner, Jong Park, Radka Kaneva, Jyotsna Batra, Manuel R Teixeira, Hardev Pandha, Mark Lathrop, Richard M Martin, Jeff M P Holly
Circulating insulin-like growth factors (IGFs) and their binding proteins (IGFBPs) are associated with prostate cancer. Using genetic variants as instruments for IGF peptides, we investigated whether these associations are likely to be causal. We identified from the literature 56 single nucleotide polymorphisms (SNPs) in the IGF axis previously associated with biomarker levels (8 from a genome-wide association study [GWAS] and 48 in reported candidate genes). In ∼700 men without prostate cancer and two replication cohorts (N ∼ 900 and ∼9,000), we examined the properties of these SNPS as instrumental variables (IVs) for IGF-I, IGF-II, IGFBP-2 and IGFBP-3...
October 1, 2016: International Journal of Cancer. Journal International du Cancer
Kei Tanaka, Keiji Sakai, Miho Matsushima, Yukiko Matsuzawa, Tomoko Izawa, Takashi Nagashima, Seishi Furukawa, Yoichi Kobayashi, Mitsutoshi Iwashita
STUDY QUESTION: Do branched-chain amino acids (BCAAs) influence the migration of human extravillous trophoblast (EVT) cells through changes in insulin-like growth factor-binding protein 1 (IGFBP1) production in decidual cells? STUDY FINDING: Decidua-derived IGFBP1 had a stimulating effect on migration of EVT. WHAT IS KNOWN ALREADY: IGFBP1 is abundantly secreted from human decidual cells and influences trophoblast migration in human placenta of early pregnancy...
August 2016: Molecular Human Reproduction
LiJun Yang, Qing Tang, Jingjing Wu, Yuqing Chen, Fang Zheng, Zhenhui Dai, Swei Sunny Hann
No abstract text is available yet for this article.
2016: Journal of Experimental & Clinical Cancer Research: CR
Joanne Muter, Paul J Brighton, Emma S Lucas, Lauren Lacey, Anatoly Shmygol, Siobhan Quenby, Andrew M Blanks, Jan J Brosens
Decidualization denotes the transformation of endometrial stromal cells into specialized decidual cells. In pregnancy, decidual cells form a protective matrix around the implanting embryo, enabling coordinated trophoblast invasion and formation of a functional placenta. Continuous progesterone (P4) signaling renders decidual cells resistant to various environmental stressors, whereas withdrawal inevitably triggers tissue breakdown and menstruation or miscarriage. Here, we show that PLCL1, coding phospholipase C (PLC)-related catalytically inactive protein 1 (PRIP-1), is highly induced in response to P4 signaling in decidualizing human endometrial stromal cells (HESCs)...
July 2016: Endocrinology
Jin Cheon Kim, Ye Jin Ha, Ka Hee Tak, Seon Ae Roh, Chan Wook Kim, Tae Won Kim, Seon-Kyu Kim, Seon-Young Kim, Dong-Hyung Cho, Yong Sung Kim
Using our data set (GSE50760) previously established by RNA sequencing, the present study aimed to identify upregulated genes associated with colorectal cancer (CRC) liver metastasis (CLM) and verify their biological behavior. The potential roles of candidate genes in tumors were assessed using cell proliferation and invasion assays. Tissue samples were collected from 18 CRC patients with synchronous CLM and two CRC cell lines (SW480 and SW620) were used for transfection and cloning. The roles of the genes identified in CLM were verified using immunohistochemistry in 48 nude mice after intrasplenic transplantation of CRC cells...
2016: PloS One
Caroline E Gargett, Shanti Gurung
No abstract text is available yet for this article.
June 2016: Biology of Reproduction
Melissa A Merritt, Howard D Strickler, Mark H Einstein, Hannah P Yang, Mark E Sherman, Nicolas Wentzensen, Jurriaan Brouwer-Visser, Maria Jose Cossio, Kathleen D Whitney, Herbert Yu, Marc J Gunter, Gloria S Huang
PURPOSE: Experimental and observational data link insulin, insulin-like growth factor (IGF), and estrogens to endometrial tumorigenesis. However, there are limited data regarding insulin/IGF and sex hormone axes protein and gene expression in normal endometrial tissues, and very few studies have examined the impact of endometrial cancer risk factors on endometrial tissue biology. METHODS: We evaluated endometrial tissues from 77 premenopausal and 30 postmenopausal women who underwent hysterectomy for benign indications and had provided epidemiological data...
June 2016: Cancer Causes & Control: CCC
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