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https://www.readbyqxmd.com/read/29330502/targeting-insulin-like-growth-factor-i-and-extracellular-matrix-interactions-in-melanoma-progression
#1
Berline Murekatete, Ali Shokoohmand, Jacqui McGovern, Lipsa Mohanty, Christoph Meinert, Brett G Hollier, Alfred Zippelius, Zee Upton, Abhishek S Kashyap
Insulin-like growth factor (IGF)-I binds to the ECM protein vitronectin (VN) through IGF binding proteins (IGFBPs) to enhance proliferation and migration of skin keratinocytes and fibroblasts. Although evidence exists for the role of individual components of the complex (IGF-I, IGFBP-3 and VN), the cellular functions stimulated by these proteins together as a complex remains un-investigated in melanoma cells. We report here that the IGF-I:IGFBP-3:VN trimeric complex stimulates a dose-dependent increase in the proliferation and migration of WM35 and Sk-MEL28 melanoma cells...
January 12, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29325466/the-correlation-between-birth-weight-and-insulin-like-growth-factor-binding-protein-1-igfbp-1-kisspeptin-1-kiss-1-and-three-dimensional-fetal-volume
#2
Gunsu Kimyon Comert, Sertac Esin, Gamze Sinem Caglar, Bulent Yirci, Sedat Ozdemir, Selda Demirtas, Omer Kandemir
PURPOSE: This study aimed to determine the relationship between birth weight, and maternal serum insulin-like growth factor binding protein-1 (IGFBP-1) and kisspeptin-1 (KISS-1) levels, and first-trimester fetal volume (FV) based on three-dimensional ultrasonography. MATERIALS AND METHODS: The study included 142 pregnant women at gestational week 110-136. All fetuses were imaged ultrasonographically by the same physician. Maternal blood samples were collected at the time of ultrasonographic evaluation and analyzed for IGFBP-1 and KISS-1 levels via enzyme-linked immunosorbent assay (ELISA)...
January 11, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29324814/comprehensive-molecular-profiling-of-advanced-metastatic-olfactory-neuroblastomas
#3
Jasmina Topcagic, Rebecca Feldman, Anatole Ghazalpour, Jeffrey Swensen, Zoran Gatalica, Semir Vranic
Olfactory neuroblastoma (ONB) is a rare, locally aggressive, malignant neoplasm originating in the olfactory epithelium in the nasal vault. The recurrence rate of ONB remains high and there are no specific treatment guidelines for recurrent/metastatic ONBs. This study retrospectively evaluated 23 ONB samples profiled at Caris Life Sciences (Phoenix, Arizona) using DNA sequencing (Sanger/NGS [Illumina], n = 15) and gene fusions (Archer FusionPlex, n = 6), whole genome RNA microarray (HumanHT-12 v4 beadChip, Illumina, n = 4), gene copy number assays (chromogenic and fluorescent in situ hybridization), and immunohistochemistry...
2018: PloS One
https://www.readbyqxmd.com/read/29321953/matrix-metalloproteinase-1-facilitates-msc-migration-via-cleavage-of-igf-2-igfbp2-complex
#4
Shou P Guan, Alan T L Lam, Jennifer P Newman, Kevin L M Chua, Catherine Y L Kok, Siao T Chong, Melvin L K Chua, Paula Y P Lam
The specific mechanism underlying the tumor tropism of human mesenchymal stem cells (MSCs) for cancer is not well defined. We previously showed that the migration potential of MSCs correlated with the expression and protease activity of matrix metalloproteinase (MMP)-1. Furthermore, highly tumor-tropic MSCs expressed higher levels of MMP-1 and insulin-like growth factor (IGF)-2 than poorly migrating MSCs. In this study, we examined the functional roles of IGF-2 and MMP-1 in mediating the tumor tropism of MSCs...
January 2018: FEBS Open Bio
https://www.readbyqxmd.com/read/29321818/ews-fli-1-creates-a-cell-surface-microenvironment-conducive-to-igf-signaling-by-inducing-pappalysin-1
#5
Panneerselvam Jayabal, Peter J Houghton, Yuzuru Shiio
Ewing sarcoma is an aggressive cancer of bone and soft tissue in children with poor prognosis. It is characterized by the chromosomal translocation between EWS and an Ets family transcription factor, most commonly FLI-1. EWS-FLI-1 fusion accounts for 85% of Ewing sarcoma cases. EWS-FLI-1 regulates the expression of a number of genes important for sarcomagenesis, can transform NIH3T3 and C3H10T1/2 cells, and is necessary for proliferation and tumorigenicity of Ewing sarcoma cells, suggesting that EWS-FLI-1 is the causative oncoprotein...
November 2017: Genes & Cancer
https://www.readbyqxmd.com/read/29289991/effects-of-dietary-advice-on-insulin-like-growth-factors-among-healthy-newborns
#6
Emre Özgür Bulduk, Sıdıka Bulduk, Burcu Biral Coşkun
OBJECTIVES: In fetal life, insulin, insulin-like growth factor (IGF) 1, IGF 2 and IGF-binding protein (IGFBP) 3 are essential growth factors. The purpose of this study is to investigate the effects of dietary intervention on insulin-like growth factors in the cord blood of neonates. METHODS: The study involved 52 pregnant women who were followed up in Gazi University Medical School Hospital at Ankara, Turkey. They were randomly divided into two groups: The experimental group was involved in nutrition education...
December 30, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/29285144/icaritin-inhibits-decidualization-of-endometrial-stromal-cells
#7
Aiwen Le, Zhong Hai Wang, Xiao Yun Dai, Tian Hui Xiao, Rong Zhuo, Baozhen Zhang, Zhonglin Xiao, Xiujun Fan
The aim of the present study was to investigate the effects of Icaritin on the proliferation and decidualization of endometrial stromal cells (ESCs). A total of 20 specimens of endometrium were collected during hysterectomy at the Gynecology Department of Shenzhen Nanshan People's Hospital (Shenzhen, China) between August 2014 and December 2015. The endometrium was digested with high concentrations of collagenase and DNase and filtered with meshes, and then the glandular epithelial and stromal cells were separated by the adhesion purification method...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29280739/novel-modulators-of-the-growth-hormone-insulin-like-growth-factor-axis-pregnancy-associated-plasma-protein-a2-and-stanniocalcin-2
#8
Masanobu Fujimoto, Vivian Hwa, Andrew Dauber
Growth hormone (GH) and its mediator, insulin-like growth factor-1 (IGF-1), play a critical role in human growth. In circulation, IGF-1 is found in a ternary complex with IGF binding proteins (IGFBPs) and acid labile subunit (ALS) but little attention has been paid to the regulation of IGF-1 bioavailability. Recently, pregnancy-associated plasma protein-A2 (PAPP-A2) and stanniocalcin-2 (STC2) were identified as novel modulators of IGF-I bioavailability. PAPP-A2 is a protease which cleaves IGFBP-3 and -5, while STC2 inhibits PAPP-A and PAPP-A2 activity...
December 27, 2017: Journal of Clinical Research in Pediatric Endocrinology
https://www.readbyqxmd.com/read/29280192/igfbp-7-inhibits-the-differentiation-of-oligodendrocyte-precursor-cells-via-regulation-of-wnt-%C3%AE-catenin-signaling
#9
Nan Li, Jinfeng Han, Jing Tang, Yanqin Ying
Oligodendrocytes (OLs) are glial cells that form myelin sheaths in the central nervous system. Myelin sheath plays important role in nervous system and loss of it in neurodegenerative diseases can lead to impairment of movement. Understanding the signals and factors that regulate OL differentiation can help to address novel strategies for improving myelin repair in neurodegenerative diseases. The aim of this study was to investigate the role of insulin-like growth factor-binding proteins 7 (IGFBP-7) in differentiating OL precursor cells (OPCs)...
December 26, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/29278514/maternal-serum-placental-growth-hormone-insulin-like-growth-factors-and-their-binding-proteins-at-20-weeks-gestation-in-pregnancies-complicated-by-gestational-diabetes-mellitus
#10
Shutan Liao, Mark H Vickers, Rennae S Taylor, Mhoyra Fraser, Lesley M E McCowan, Philip N Baker, Jo K Perry
OBJECTIVE: To investigate whether maternal serum concentrations of placental growth hormone (GH-V), insulin-like growth factor (IGF) 1 and 2, and IGF binding proteins (IGFBP) 1 and 3 were altered in pregnancies complicated by gestational diabetes mellitus (GDM). METHOD: In a nested case-control study, GDM cases (n=28) and matched controls (n=28) were selected from the Screening for Pregnancy Endpoints (SCOPE) biobank in Auckland, New Zealand. Maternal serum hormone concentrations at 20 weeks of gestation were determined by enzyme-linked immunosorbent assay (ELISA)...
July 2017: Hormones: International Journal of Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29260199/systemic-inflammation-associated-proteins-and-retinopathy-of-prematurity-in-infants-born-before-the-28th-week-of-gestation
#11
Mari Holm, Tora S Morken, Raina N Fichorova, Deborah K VanderVeen, Elizabeth N Allred, Olaf Dammann, Alan Leviton
Purpose: To assess the association between systemic levels of inflammation-associated proteins and severe retinopathy of prematurity (ROP) in extremely preterm infants. Methods: We collected whole blood on filter paper on postnatal days 1, 7, 14, 21, and 28 from 1205 infants born before the 28th week of gestation, and measured the concentrations of 27 inflammation-associated, angiogenic, and neurotrophic proteins. We calculated odds ratios with 95% confidence intervals for the association between top quartile concentrations of each protein and prethreshold ROP...
December 1, 2017: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/29259466/overexpression-of-microrna-542-3p-attenuates-the-differentiating-capacity-of-endometriotic-stromal-cells
#12
Shamima Sultana, Takeshi Kajihara, Yumi Mizuno, Tomomi Sato, Tatsuo Oguro, Machiko Kimura, Masumi Akita, Osamu Ishihara
Aim: Endometriosis is defined as the presence of endometrial glandular and stromal cells outside of the uterine cavity. A previous study reported that microRNA (miR)-542-3p plays a critical role in eutopic endometrial decidualization. This study aims to clarify the potential role of miR-542-3p and the target gene, IGFBP-1 (insulin-like growth factor-binding protein 1), in the impairment of the decidualizing capacity of human ectopic endometrial stromal cells (HEcESCs). Methods: In vitro analysis of primary undifferentiated and decidualizing human eutopic endometrial stromal cells (HEuESCs) and HEcESCs was conducted...
April 2017: Reproductive Medicine and Biology
https://www.readbyqxmd.com/read/29250665/the-correlation-between-insulin-like-growth-factor-with-glycemic-control-glomerular-filtration-rate-blood-pressure-hematological-changes-or-body-mass-index-in-patients-with-type-2-diabetes-mellitus
#13
Marius Cristian NeamŢu, Elena Taina Avramescu, Iulia Rahela Marcu, Adina Turcu-Ştiolică, Mihail Virgil Boldeanu, Oana Maria NeamŢu, Ştefania Tudorache, Rucsandra Elena Dănciulescu Miulescu
Insulin-like growth factor (IGF) family is made up of two polypeptides, IGF-I and IGF-II, six specific binding proteins (IGFBPs 1-6) and specific receptors. IGF-I is involved in the regulation of growth and cellular proliferation and has a similar structure to insulin. The major IGF transport function is attributed to IGFBP-3. Some studies have highlighted the association between IGF and diabetes. The aims of this study were to analyze the correlation between IGF with glycemic control, glomerular filtration rate (GFR), blood pressure, hematological changes or body mass index (BMI) in patients with type 2 diabetes mellitus (T2DM)...
2017: Romanian Journal of Morphology and Embryology, Revue Roumaine de Morphologie et Embryologie
https://www.readbyqxmd.com/read/29249625/genetic-disorders-of-gh-action-pathway
#14
Horacio M Domené, Gustavo Fierro-Carrión
While insensitivity to GH (GHI) is characterized by low IGF-I levels, normal or elevated GH levels, and lack of IGF-I response to GH treatment, IGF-I resistance is characterized by elevated IGF-I levels with normal/high GH levels. Several genetic defects are responsible for impairment of GH and IGF-I actions resulting in short stature that could affect intrauterine growth or be present in the postnatal period. The genetic defects affecting GH and/or IGF-I action can be divided into five different groups: GH insensitivity by defects affecting the GH receptor (GHR), the intracellular GH signaling pathway (STAT5B, STAT3, IKBKB, IL2RG, PIK3R1), the synthesis of insulin-like growth factors (IGF1, IGF2), the transport/bioavailability of IGFs (IGFALS, PAPPA2), and defects affecting IGF-I sensitivity (IGF1R)...
December 12, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29249623/growth-hormone-and-insulin-like-growth-factor-i-axis-in-type-1-diabetes
#15
Bimota Nambam, Desmond Schatz
The precise mechanisms relating type 1 diabetes (T1D) and poor glycemic control to the axis of growth hormone (GH), insulin like growth factor- I (IGF-I), and IGF binding protein-3 (IGFBP-3) remain to be definitively determined. GH resistance with low IGF-I as is frequently seen in patients with T1D is often related to portal hypoinsulization, and lack of upregulation of GH receptors. There are conflicting reports of the effect of a dysregulated GH/IGF-I axis on height in children and adolescents with T1D, as well as on chronic complications...
December 13, 2017: Growth Hormone & IGF Research
https://www.readbyqxmd.com/read/29248211/influence-of-ad-libitum-milk-replacer-feeding-and-butyrate-supplementation-on-the-systemic-and-hepatic-insulin-like-growth-factor-i-and-its-binding-proteins-in-holstein-calves
#16
D Frieten, C Gerbert, C Koch, G Dusel, K Eder, A Hoeflich, B Mielenz, H M Hammon
Ad libitum milk feeding and butyrate (B) supplementation have the potential to stimulate postnatal growth and development in calves. The somatotropic axis is the main endocrine regulator of postnatal growth and may be affected by both ad libitum milk replacer (MR) feeding and B supplementation in calves. We hypothesized that ad libitum MR feeding and B supplementation stimulate systemic and hepatic insulin-like growth factor (IGF)-I and IGF binding proteins (IGFBP) in preweaning calves. Sixty-four (32 male, 32 female) Holstein calves were examined from birth until wk 11 of life...
December 13, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29221569/functional-analysis-of-the-igf-system-in-milk
#17
REVIEW
Andreas Hoeflich, Zianka Meyer
The development of milk during evolution is considered a more recent step to provide the neonate with adequate amounts of energy, nutrients, and specific hormonal signals thereby, granting a fast and efficient rate of postnatal growth and development. Since the insulin- or the insulin-like growth factor (IGF) systems were evolved much earlier, it can be assumed that the functionality of the IGF-system has been integrated into the novel matrix milk containing casein and whey proteins from the beginnings. In fact, IGFs and IGF-binding proteins (IGFBPs) are abundantly present in milk, which is particularly true for fore-milk or colostrum and the potential effects of milk-borne IGF-compounds on the consuming organisms have in fact been addressed by several studies...
August 2017: Best Practice & Research. Clinical Endocrinology & Metabolism
https://www.readbyqxmd.com/read/29217518/enhancement-of-mammary-tumor-growth-by-igfbp-3-involves-impaired-t-cell-accumulation
#18
Tiffany Scully, Carolyn Scott, Sue Mei Firth, Lisa M Sedger, John E Pintar, Stephen Twigg, Robert C Baxter
Epidemiological studies show an association between obesity and poor breast cancer prognosis. We previously demonstrated that global IGFBP-3 deficiency, in IGFBP-3-null mice, resulted in a 50% reduction in mammary tumor growth over 3 weeks relative to tumors in wild-type C57BL/6 mice. This growth reduction was ameliorated by high-fat feeding-induced obesity. This study aimed to examine how IGFBP-3 promotes tumor growth by influencing the immune tumor microenvironment in healthy and obese mice. Syngeneic EO771 cells, which lack detectable IGFBP-3 expression, were grown as orthotopic tumors in wild-type and IGFBP-3-null C57BL/6 mice placed on either a control chow or high-fat diet, and examined by quantitative PCR and immunohistochemistry...
December 7, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/29215061/local-production-of-activated-factor-x-in-atherosclerotic-plaque-induced-vascular-smooth-muscle-cell-senescence
#19
Fumihiro Sanada, Jun Muratsu, Rei Otsu, Hideo Shimizu, Nobutaka Koibuchi, Kazutaka Uchida, Yoshiaki Taniyama, Shinichi Yoshimura, Hiromi Rakugi, Ryuichi Morishita
Our previous study demonstrated that coagulation factor Xa (FXa) induced endothelial cell senescence, resulting in inflammation and impaired angiogenesis. This mechanism is dictated through protease-activated receptors, PARs, insulin-like growth factor-binding protein 5 (IGFBP-5), and p53. Activation of PARs contributes to the pathophysiology of several chronic inflammatory diseases, including atherosclerosis. Thus, we speculated that similar mechanism might participate in the progression of atherosclerotic plaques...
December 7, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29214734/increased-serum-level-of-igf-1-correlates-with-better-cognitive-status-in-end-stage-renal-disease-patients-undergoing-hemodialysis
#20
Vladimir Prelevic, Danilo Radunovic, Tanja Antunovic, Marina Ratkovic, Najdana Gligorovic-Bahranovic, Branka Gledovic, Snezana Vujosevic, Mirjana Nedovic-Vukovic, Nikolina Basic-Jukic
Prevalence of cognitive function decline in end stage renal disease (ESRD) patients undergoing hemodialysis is higher than in the general population. We analyzed risk factors for cognitive function decline in those patients. This study included 93 ESRD patients undergoing hemodialysis two or three times a week in three centers for hemodialysis in Montenegro. The cognitive status of patients was assessed using the mini mental score examination (MMSE) test. All 93 patients have been divided into three groups according to the results of MMSE...
December 7, 2017: Therapeutic Apheresis and Dialysis
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