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WNT7a

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https://www.readbyqxmd.com/read/28165497/wnt7a-inhibits-il-1%C3%AE-induced-catabolic-gene-expression-and-prevents-articular-cartilage-damage-in-experimental-osteoarthritis
#1
Averi L Gibson, Carrie K Hui Mingalone, Andrea T Foote, Tomoya Uchimura, Ming Zhang, Li Zeng
Wnt7a is a protein that plays a critical role in skeletal development. However, its effect on cartilage homeostasis under pathological conditions is not known. In this study, we found a unique inverse correlation between Wnt7a gene expression and that of MMP and IL-1β in individual human OA cartilage specimens. Upon ectopic expression in primary human articular chondrocytes, Wnt7a inhibited IL-1β-induced MMP and iNOS gene expression. Western blot analysis indicated that Wnt7a induced both canonical Wnt signaling and NFAT and Akt non-canonical signaling...
February 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28161161/the-influence-of-postnatal-nutrition-on-reproductive-tract-and-endometrial-gland-development-in-dairy-calves
#2
Meghan L Wilson, Sarah R McCoski, Adam J Geiger, R Michael Akers, Sally E Johnson, Alan D Ealy
Uterine gland development occurs after birth in cattle and other mammals. The timeline of gland development has been described in various species, but little is known about how postnatal diet influences uterine gland development. This is especially concerning in dairy heifers, where a variety of milk replacer and whole milk nutrition options exist. Little work also exists in cattle to describe how early exposure to steroids influences reproductive tract and uterine gland development. The objective of this work was to determine the effects of early postnatal plane of nutrition and estrogen supplementation on uterine gland development in calves...
February 1, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28128299/lps-induced-inflammatory-response-is-suppressed-by-wnt-inhibitors-dickkopf-1-and-lgk974
#3
Jaewoong Jang, Yoonju Jung, Youngeun Kim, Eek-Hoon Jho, Yoosik Yoon
In this study, LPS-induced inflammatory responses in BEAS-2B human bronchial epithelial cells and human umbilical vein endothelial cell (HUVEC)s were found to be prevented by Dickkopf-1 (DKK-1), a secreted Wnt antagonist, and LGK974, a small molecular inhibitor of the Wnt secretion. LPS-induced IκB degradation and NF-κB nuclear translocation as well as the expressions of pro-inflammatory genes including IL-6, IL-8, TNF- α, IL-1β, MCP-1, MMP-9, COX-2 and iNOS, were all suppressed by DKK-1 and LGK974 in a dose-dependent manner...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28116645/long-term-effects-of-repeated-superovulation-on-the-uterus-and-mammary-gland-in-rhesus-monkeys
#4
Peipei Yan, Jingyi Xu, Yan Zeng, Guoying Dong, Huarong Cao, Meimei Zheng, Hui Zhu
PURPOSE: The aim of this study is to evaluate the effect of repeated controlled ovarian hyperstimulation (COH) on the structure and function of the uterus and mammary gland. METHODS: Three adult female rhesus monkeys were superovulated up to four times, and three spontaneously ovulating monkeys were used as controls. After a 5-year period, the uterus and mammary gland tissue samples were collected for examination of their structure and function. Further, the expression of certain tumor markers was examined to assess the cancer risk for each organ...
January 23, 2017: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/28114283/an-integrated-analysis-identifies-stat4-as-a-key-regulator-of-ovarian-cancer-metastasis
#5
L Zhao, G Ji, X Le, Z Luo, C Wang, M Feng, L Xu, Y Zhang, W B Lau, B Lau, Y Yang, L Lei, H Yang, Y Xuan, Y Chen, X Deng, T Yi, S Yao, X Zhao, Y Wei, S Zhou
Epithelial ovarian cancer (EOC) is one of the most common gynecological cancers, with diagnosis often at a late stage. Metastasis is a major cause of death in patients with EOC, but the underlying molecular mechanisms remain obscure. Here, we utilized an integrated approach to find potential key transcription factors involved in ovarian cancer metastasis and identified STAT4 as a critical player in ovarian cancer metastasis. We found that activated STAT4 was overexpressed in epithelial cells of ovarian cancer and STAT4 overexpression was associated with poor outcome of ovarian cancer patients, which promoted metastasis of ovarian cancer in both in vivo and in vitro...
January 23, 2017: Oncogene
https://www.readbyqxmd.com/read/28059551/wnt-signaling-in-chronic-rhinosinusitis-with-nasal-polyps
#6
Robert Böscke, Eszter K Vladar, Michael Könnecke, Birgit Hüsing, Robert Linke, Ralph Pries, Norbert Reiling, Jeffrey D Axelrod, Jayakar V Nayak, Barbara Wollenberg
The signaling pathways that sustain the disease process of chronic rhinosinusitis with nasal polyps (CRSwNP) remain poorly understood. We sought to determine the expression levels of Wnt signaling genes in CRSwNP, and to study the role of the Wnt pathway in inflammation and epithelial remodeling in the nasal mucosa. Microarrays and RT-qPCR comparing gene expression in matched nasal polyps (NP) and inferior turbinates (IT) revealed that WNT2B, WNT3A, WNT4, WNT7A, WNT7B and FZD2 were upregulated, and FZD1, LRP5, LRP6 and WIF1 downregulated in NPs...
January 6, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28045068/elucidating-the-genetic-basis-of-an-oligogenic-birth-defect-using-whole-genome-sequence-data-in-a-non-model-organism-bubalus-bubalis
#7
Lynsey K Whitacre, Jesse L Hoff, Robert D Schnabel, Sara Albarella, Francesca Ciotola, Vincenzo Peretti, Francesco Strozzi, Chiara Ferrandi, Luigi Ramunno, Tad S Sonstegard, John L Williams, Jeremy F Taylor, Jared E Decker
Recent strong selection for dairy traits in water buffalo has been associated with higher levels of inbreeding, leading to an increase in the prevalence of genetic diseases such as transverse hemimelia (TH), a congenital developmental abnormality characterized by absence of a variable distal portion of the hindlimbs. Limited genomic resources available for water buffalo required an original approach to identify genetic variants associated with the disease. The genomes of 4 bilateral and 7 unilateral affected cases and 14 controls were sequenced...
January 3, 2017: Scientific Reports
https://www.readbyqxmd.com/read/27965056/porcupine-dependent-wnt-signaling-controls-stromal-proliferation-and-endometrial-gland-maintenance-through-the-action-of-distinct-wnts
#8
Omar Farah, Steffen Biechele, Janet Rossant, Daniel Dufort
Wnt signaling has been shown to be important in orchestrating proper development of the female reproductive tract. In the uterus, six members of the Wnt family are expressed in the neonatal endometrium and deletion of individual Wnt genes often leads to similar phenotypes, suggesting an interaction of these genes in uterine development and function. Furthermore, Wnts may have complementary functions, which could mask the identification of their individual functional role in single gene deletions. To circumvent this issue, we have generated a deletion of the Porcupine homolog within the female reproductive tract using progesterone receptor-Cre mice (Pgr(Cre/+)); preventing Wnt secretion from the producing cells...
December 10, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27936013/%C3%AE-asarone-rescues-pb-induced-impairments-of-spatial-memory-and-synaptogenesis-in-rats
#9
Qian-Qian Yang, Wei-Zhen Xue, Rong-Xin Zou, Yi Xu, Yang Du, Shuang Wang, Lai Xu, Yuan-Zhi Chen, Hui-Li Wang, Xiang-Tao Chen
Chronic lead (Pb) exposure causes cognitive deficits. This study aimed to explore the neuroprotective effect and mechanism of β-asarone, an active component from Chinese Herbs Acorus tatarinowii Schott, to alleviate impairments of spatial memory and synaptogenesis in Pb-exposed rats. Both Sprague-Dawley developmental rat pups and adult rats were used in the study. Developmental rat pups were exposed to Pb throughout the lactation period and β-asarone (10, 40mg kg-1, respectively) was given intraperitoneally from postnatal day 14 to 21...
2016: PloS One
https://www.readbyqxmd.com/read/27767183/molecular-characterization-of-thy1-expressing-fear-inhibiting-neurons-within-the-basolateral-amygdala
#10
Kenneth M McCullough, Dennis Choi, Jidong Guo, Kelsey Zimmerman, Jordan Walton, Donald G Rainnie, Kerry J Ressler
Molecular characterization of neuron populations, particularly those controlling threat responses, is essential for understanding the cellular basis of behaviour and identifying pharmacological agents acting selectively on fear-controlling circuitry. Here we demonstrate a comprehensive workflow for identification of pharmacologically tractable markers of behaviourally characterized cell populations. Thy1-eNpHR-, Thy1-Cre- and Thy1-eYFP-labelled neurons of the BLA consistently act as fear inhibiting or 'Fear-Off' neurons during behaviour...
October 21, 2016: Nature Communications
https://www.readbyqxmd.com/read/27435302/pigmentation-of-regenerated-hairs-after-wounding
#11
Minoru Yuriguchi, Hitomi Aoki, Nobuhiko Taguchi, Takahiro Kunisada
BACKGROUND: After severe wounding, hair follicles were known to be regenerated de novo along with the re-epithelialization. However, the regenerated hairs lack pigmentation. OBJECTIVE: We aimed to find out the condition to regenerate pigmented hairs after severe wounding. METHODS: De novo hair regeneration was observed during the re-epithelialization process after the full thickness excision of dorsal skin. Hair pigmentation mechanism was assessed by the modulation of Wnt and Kit signalings...
October 2016: Journal of Dermatological Science
https://www.readbyqxmd.com/read/27273803/etiologies-of-uterine-malformations
#12
REVIEW
Adeline Jacquinet, Debra Millar, Anna Lehman
Ranging from aplastic uterus (including Mayer-Rokitansky-Kuster-Hauser syndrome) to incomplete septate uterus, uterine malformations as a group are relatively frequent in the general population. Specific causes remain largely unknown. Although most occurrences ostensibly seem sporadic, familial recurrences have been observed, which strongly implicate genetic factors. Through the study of animal models, human syndromes, and structural chromosomal variation, several candidate genes have been proposed and subsequently tested with targeted methods in series of individuals with isolated, non-isolated, or syndromic uterine malformations...
August 2016: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/27265783/increased-neuroplasticity-and-hippocampal-microglia-activation-in-a-mice-model-of-rapid-antidepressant-treatment
#13
Luca Muzio, Valentina Brambilla, Lorenza Calcaterra, Patrizia D'Adamo, Gianvito Martino, Francesco Benedetti
The search for biomarkers of antidepressant effects focused on pathways regulating synaptic plasticity, and on activated inflammatory markers. Repeated Sleep Deprivation (SD) provides a model treatment to reverse-translate antidepressant effects from in vivo clinical psychiatry to model organisms. We studied the effects of repeated SD alone (ASD) or combined with exercise on a slow spinning wheel (SSW), in 116 C57BL/6J male mice divided in three groups (ASD, SSW, untreated). Forced Swimming Test (FST) was used to detect antidepressant-like effects...
September 15, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27195958/wnt7a-regulation-by-mir-15b-in-ovarian-cancer
#14
James A MacLean, Mandy L King, Hiroshi Okuda, Kanako Hayashi
WNT signaling is well known to play an important role in the regulation of development, cell proliferation and cell differentiation in a wide variety of normal and cancerous tissues. Despite the wealth of knowledge concerning when and where various WNT genes are expressed and downstream events under their control, there is surprisingly little published evidence of how they are regulated. We have recently reported that aberrant WNT7A is observed in serous ovarian carcinomas, and WNT7A is the sole ligand accelerating ovarian tumor progression through CTNNB1 (β-catenin)/TCF signaling in the absence of CTNNB1 mutations...
2016: PloS One
https://www.readbyqxmd.com/read/27153923/deletion-of-adp-ribosylation-factor-like-gtpase-13b-leads-to-kidney-cysts
#15
Yuanyuan Li, Xin Tian, Ming Ma, Stephanie Jerman, Shanshan Kong, Stefan Somlo, Zhaoxia Sun
The gene for ADP ribosylation factor-like GTPase 13B (Arl13b) encodes a small GTPase essential for cilia biogenesis in multiple model organisms. Inactivation of arl13b in zebrafish leads to a number of phenotypes indicative of defective cilia, including cystic kidneys. In mouse, null mutation in Arl13b results in severe patterning defects in the neural tube and defective Hedgehog signaling. Human mutations of ARL13B lead to Joubert syndrome, a ciliopathy. However, patients with mutated ARL13B do not develop kidney cysts...
December 2016: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/27085397/prepubertal-tamoxifen-treatment-affects-development-of-heifer-reproductive-tissues-and-related-signaling-pathways
#16
A Al Naib, H L M Tucker, G Xie, D H Keisler, F F Bartol, R P Rhoads, R M Akers, M L Rhoads
Prepubertal exposure of the developing ovaries and reproductive tract (RT) to estrogen or xenoestrogens can have acute and long-term consequences that compromise the reproductive performance of cattle. This research examined effects of the selective estrogen receptor modulator tamoxifen (TAM) on gene and protein abundance in prepubertal ovaries and RT, with a particular focus on signaling pathways that affect morphology. Tamoxifen was administered to Holstein heifer calves (n=8) daily (0.3mg/kg subcutaneously) from 28 to 120 d of age, when tissues were collected...
July 2016: Journal of Dairy Science
https://www.readbyqxmd.com/read/26934061/the-wnt7-s-tale-a-story-of-an-orphan-who-finds-her-tie-to-a-famous-family
#17
REVIEW
Makoto Noda, Mario Vallon, Calvin J Kuo
The transformation suppressor gene RECK was isolated by cDNA expression cloning (1998), and GPR124/TEM5 was detected as a tumor endothelial marker by differential screening (2000). The importance of Wnt7a/b and Gpr124 in brain angiogenesis was demonstrated by reverse genetics in mice (2008-2010). A series of recent studies using genetically engineered mice and zebrafish as well as luciferase reporter assays in cultured cells led to the discovery of functional interactions among Reck, Gpr124, and Wnt7a/b in triggering canonical Wnt signaling with relevance to embryonic brain angiogenesis and blood-brain barrier formation...
May 2016: Cancer Science
https://www.readbyqxmd.com/read/26911934/endosulfan-affects-uterine-development-and-functional-differentiation-by-disrupting-wnt7a-and-%C3%AE-catenin-expression-in-rats
#18
Paola I Ingaramo, María M Milesi, Marlise Guerrero Schimpf, Jorge G Ramos, Lucía Vigezzi, Mónica Muñoz-de-Toro, Enrique H Luque, Jorgelina Varayoud
Neonatal exposure to a low dose of endosulfan may disrupt the expression of Wnt7a and β-catenin during uterine development leading to the failure of uterine functional differentiation during implantation. New-born female Wistar rats were treated with vehicle, endosulfan (600 μg/kg/d, E600) or diethylstilbestrol (0.2 μg/kg/d, DES) on postnatal days (PNDs) 1, 3, 5 and 7. Subsequently, uterine histomorphology and the protein expression of Wnt7a and β-catenin were evaluated on PND8, PND21 and gestational day (GD) 5 (pre-implantation period)...
April 15, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/26898831/a-deregulated-expression-of-estrogen-target-genes-is-associated-with-an-altered-response-to-estradiol-in-aged-rats-perinatally-exposed-to-bisphenol-a
#19
Lucía Vigezzi, Jorge G Ramos, Laura Kass, María V Tschopp, Mónica Muñoz-de-Toro, Enrique H Luque, Verónica L Bosquiazzo
Here we assessed the effects of perinatal exposure to bisphenol A (BPA) on the uterine response to 17β-estradiol (E2) in aged rats. Pregnant rats were orally exposed to 0.5 or 50 μg BPA/kg/day from gestational day 9 until weaning. On postnatal day (PND) 360, the rats were ovariectomized and treated with E2 for three months. The uterine tissue of BPA50 and BPA0.5 rats showed increased density of glands with squamous metaplasia (GSM) and glands with daughter glands respectively. Wnt7a expression was lower in GSM of BPA50 rats than in controls...
May 5, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/26843448/constitutive-notch-signaling-causes-abnormal-development-of-the-oviducts-abnormal-angiogenesis-and-cyst-formation-in-mouse-female-reproductive-tract
#20
Lydia Ferguson, Elena M Kaftanovskaya, Carmen Manresa, Agustin M Barbara, Robert J Poppiti, Yingchun Tan, Alexander I Agoulnik
The Notch signaling pathway is critical for the differentiation of many tissues and organs in the embryo. To study the consequences of Notch1 gain-of-function signaling on female reproductive tract development, we used a cre-loxP strategy and Amhr2-cre transgene to generate mice with conditionally activated Notch1 (Rosa(Notch1)). The Amhr2-cre transgene is expressed in the mesenchyme of developing female reproductive tract and in granulosa cells in the ovary. Double transgenic Amhr2-cre, Rosa(Notch1) females were infertile, whereas control Rosa(Notch1) mice had normal fertility...
March 2016: Biology of Reproduction
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