keyword
MENU ▼
Read by QxMD icon Read
search

FOXL2

keyword
https://www.readbyqxmd.com/read/28209164/rnf40-regulates-gene-expression-in-an-epigenetic-context-dependent-manner
#1
Wanhua Xie, Sankari Nagarajan, Simon J Baumgart, Robyn Laura Kosinsky, Zeynab Najafova, Vijayalakshmi Kari, Magali Hennion, Daniela Indenbirken, Stefan Bonn, Adam Grundhoff, Florian Wegwitz, Ahmed Mansouri, Steven A Johnsen
BACKGROUND: Monoubiquitination of H2B (H2Bub1) is a largely enigmatic histone modification that has been linked to transcriptional elongation. Because of this association, it has been commonly assumed that H2Bub1 is an exclusively positively acting histone modification and that increased H2Bub1 occupancy correlates with increased gene expression. In contrast, depletion of the H2B ubiquitin ligases RNF20 or RNF40 alters the expression of only a subset of genes. RESULTS: Using conditional Rnf40 knockout mouse embryo fibroblasts, we show that genes occupied by low to moderate amounts of H2Bub1 are selectively regulated in response to Rnf40 deletion, whereas genes marked by high levels of H2Bub1 are mostly unaffected by Rnf40 loss...
February 16, 2017: Genome Biology
https://www.readbyqxmd.com/read/28208728/parabens-accelerate-ovarian-dysfunction-in-a-4-vinylcyclohexene-diepoxide-induced-ovarian-failure-model
#2
Jae-Hwan Lee, Myeongho Lee, Changhwan Ahn, Hee Young Kang, Dinh Nam Tran, Eui-Bae Jeung
Parabens are widely used preservatives in basic necessities such as cosmetic and pharmaceutical products. In previous studies, xenoestrogenic actions of parabens were reported in an immature rat model and a rat pituitary cell line (GH3 cells). The relationship between parabens and ovarian failure has not been described. In the present study, the influence of parabens on ovarian folliculogenesis and steroidogenesis was investigated. A disruptor of ovarian small pre-antral follicles, 4-vinylcyclohexene diepoxide (VCD, 40 mg/kg), was used to induce premature ovarian failure (POF)...
February 8, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/28205594/genome-editing-reveals-dmrt1-as-an-essential-male-sex-determining-gene-in-chinese-tongue-sole-cynoglossus-semilaevis
#3
Zhongkai Cui, Yun Liu, Wenwen Wang, Qian Wang, Ning Zhang, Fan Lin, Na Wang, Changwei Shao, Zhongdian Dong, Yangzhen Li, Yingming Yang, Mengzhu Hu, Hailong Li, Fengtao Gao, Zhanfei Wei, Liang Meng, Yang Liu, Min Wei, Ying Zhu, Hua Guo, Christopher H K Cheng, Manfred Schartl, Songlin Chen
Chinese tongue sole is a marine fish with ZW sex determination. Genome sequencing suggested that the Z-linked dmrt1 is a putative male determination gene, but direct genetic evidence is still lacking. Here we show that TALEN of dmrt1 efficiently induced mutations of this gene. The ZZ dmrt1 mutant fish developed ovary-like testis, and the spermatogenesis was disrupted. The female-related genes foxl2 and cyp19a1a were significantly increased in the gonad of the ZZ dmrt1 mutant. Conversely, the male-related genes Sox9a and Amh were significantly decreased...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28193729/sequential-divergent-and-cooperative-requirements-of-foxl2a-and-foxl2b-in-ovary-development-and-maintenance-of-zebrafish
#4
Yan-Jing Yang, Yang Wang, Zhi Li, Li Zhou, Jian-Fang Gui
Foxl2 is essential for mammalian ovary maintenance. Although sexually dimorphic expression of foxl2 was observed in many teleost, its role and regulative mechanism in fish remained largely unclear. In this study, we first identified two transcript variants of foxl2a and its homologous gene foxl2b in zebrafish, and revealed their specific expression in follicular layer cells in a sequential and divergent fashion during ovary differentiation, maturation and maintenance. Then, homozygous foxl2a mutants (foxl2a(-/-)) and foxl2b mutants (foxl2b(-/-)) were constructed, and detailed comparisons, such as sex ratio, gonadal histological structure, transcriptome profiling and dynamic expression of gonadal development-related genes, were carried out...
February 13, 2017: Genetics
https://www.readbyqxmd.com/read/28166983/maternal-recognition-of-pregnancy-and-implantation-are-not-associated-with-an-interferon-response-of-the-endometrium-to-the-presence-of-the-conceptus-in-dromedary-camel
#5
Ahmed Sabry Salah Abdoon, Corrine Giraud-Delville, Omaima Mohamed Kandil, Annelye Kerboeuf-Giraud, Caroline Eozénou, Anais Vitorino Carvalho, Skidmore Julian, Olivier Sandra
Maternal recognition of pregnancy (MRP) and implantation involve appropriate interactions between the elongating conceptus and the receptive endometrium that will condition development of the feto-placental unit to term. Molecular mechanisms that take place at the conceptus-endometrium interface during early pregnancy have been extensively investigated in domestic ungulates but they are still poorly understood in camelids including the dromedary camel (Camelus dromedarius), a domestic species with important economic and social roles in arid and semi-arid areas...
March 1, 2017: Theriogenology
https://www.readbyqxmd.com/read/28154936/cultured-bovine-granulosa-cells-rapidly-lose-important-features-of-their-identity-and-functionality-but-partially-recover-under-long-term-culture-conditions
#6
Vengala Rao Yenuganti, Jens Vanselow
Cell culture models are essential for the detailed study of molecular processes. We analyze the dynamics of changes in a culture model of bovine granulosa cells. The cells were cultured for up to 8 days and analyzed for steroid production and gene expression. According to the expression of the marker genes CDH1, CDH2 and VIM, the cells maintained their mesenchymal character throughout the time of culture. In contrast, the levels of functionally important transcripts and of estradiol and progesterone production were rapidly down-regulated but showed a substantial up-regulation from day 4...
February 2, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28119367/hmga2-foxl2-axis-regulates-metastases-and-epithelial-to-mesenchymal-transition-of-chemo-resistant-gastric-cancer
#7
Jiaqiang Dong, Rui Wang, Gui Ren, Xiaowei Li, Jingbo Wang, Yi Sun, Jie Liang, Yongzan Nie, Kaichun Wu, Bin Feng, Yulong Shang, Daiming Fan
Purpose Chemo-resistance is the main cause of treatment failure in cancer and is associated with distant metastases and epithelial-to-mesenchymal transition (EMT). This study aimed to explore the mechanism of metastases and EMT in chemo-resistant gastric cancer (GC). Experimental Design A key molecular pathway was identified via gene profiling and a bioinformatic analysis in a chemo-resistant GC model. The roles of FOXL2, HMGA2 and ITGA2 were validated via loss-of-function and gain-of-function experiments in vitro and in an orthotopic GC animal model...
January 24, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28091399/sex-determination-and-maintenance-the-role-of-dmrt1-and-foxl2
#8
REVIEW
Shengsong Huang, Leping Ye, Haolin Chen
In many species, including mammals, sex determination is genetically based. The sex chromosomes that individuals carry determine sex identity. Although the genetic base of phenotypic sex is determined at the moment of fertilization, the development of testes or ovaries in the bipotential early gonads takes place during embryogenesis. During development, sex determination depends upon very few critical genes. When one of these key genes functions inappropriately, sex reversal may happen. Consequently, an individual's sex phenotype may not necessarily be consistent with the sex chromosomes that are present...
January 13, 2017: Asian Journal of Andrology
https://www.readbyqxmd.com/read/28076754/transcriptome-analysis-of-the-potential-roles-of-foxl2-in-chicken-pre-hierarchical-and-pre-ovulatory-granulosa-cells
#9
Jing Wang, Chengcheng Zhao, Jinqiu Li, Yanping Feng, Yanzhang Gong
Forkheadbox L2 (FOXL2) is a transcription factor involved in mammalian ovarian development, especially in granulosa cell differentiation. However, this factor's function in mature chicken ovary is unclear. To explore the function of FOXL2 in chicken granulosa cells, we performed RNA-seq to compare the transcriptomes of pre-hierarchical (phGCs) and pre-ovulatory granulosa cells (poGCs) by FOXL2 overexpression. We observed that focal adhesion might be one of the key pathways activated during the differentiation of granulosa cells, and FOXL2 might be involved in follicle selection by regulating the expression of cytokines and the concentration of cyclic adenosine monophosphate (cAMP)...
January 5, 2017: Comparative Biochemistry and Physiology. Part D, Genomics & Proteomics
https://www.readbyqxmd.com/read/28045957/normal-levels-of-sox9-expression-in-the-developing-mouse-testis-depend-on-the-tes-tesco-enhancer-but-this-does-not-act-alone
#10
Nitzan Gonen, Alexander Quinn, Helen C O'Neill, Peter Koopman, Robin Lovell-Badge
During mouse sex determination, transient expression of the Y-linked gene Sry up-regulates its direct target gene Sox9, via a 3.2 kb testis specific enhancer of Sox9 (TES), which includes a core 1.4 kb element, TESCO. SOX9 activity leads to differentiation of Sertoli cells, rather than granulosa cells from the bipotential supporting cell precursor lineage. Here, we present functional analysis of TES/TESCO, using CRISPR/Cas9 genome editing in mice. Deletion of TESCO or TES reduced Sox9 expression levels in XY fetal gonads to 60 or 45% respectively relative to wild type gonads, and reduced expression of the SOX9 target Amh...
January 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28002600/differential-expression-of-toll-like-receptors-in-goat-dominant-and-nondominant-follicles
#11
G X E, Y J Zhao, Y H Ma, M X Chu, Q H Hong, S J Lv, L Zhu, F K Li, Y G Han, X Wu, Y F Huang
The mechanism of dominant follicle selection is unclear because of its physiological complexity. However, some studies have reported that the immune system plays an important role in reproductive physiology. The objective of the current study was to investigate the differential expression of Toll-like receptors (TLRs) in the dominant (DFs) and nondominant follicles (NFs), and to determine the correlation between the expression of TLRs and the related genes, such as WNT4 and FOXL2. In this comparative study, the expression levels of TLRs, WNT4, and FOXL2 genes of DFs and NFs were obtained from three Dazu black goats were estimated using the real-time PCR...
December 19, 2016: Genetics and Molecular Research: GMR
https://www.readbyqxmd.com/read/27994055/smad3-regulates-follicle-stimulating-hormone-synthesis-by-pituitary-gonadotrope-cells-in-vivo
#12
Yining Li, Gauthier Schang, Ulrich Boehm, Chu-Xia Deng, Jonathan Graff, Daniel J Bernard
Pituitary follicle-stimulating hormone (FSH) is an essential regulator of fertility in females and of quantitatively normal spermatogenesis in males. Pituitary-derived activins are thought to act as major stimulators of FSH synthesis by gonadotrope cells. In vitro, activins signal via SMAD3, SMAD4, and forkhead box L2 (FOXL2) to regulate transcription of the FSHβ subunit gene (Fshb). Consistent with this model, gonadotrope-specific Smad4 or Foxl2 knock-out mice have greatly reduced FSH and are subfertile. The role of SMAD3 in vivo is unresolved; however, residual FSH production in Smad4 conditional knock-out mice may derive from partial compensation by SMAD3 and its ability to bind DNA in the absence of SMAD4...
February 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/27940159/dmrt1-is-necessary-for-male-sexual-development-in-zebrafish
#13
Kaitlyn A Webster, Ursula Schach, Angel Ordaz, Jocelyn S Steinfeld, Bruce W Draper, Kellee R Siegfried
The dmrt1 (doublesex and mab-3 related transcription factor 1) gene is a key regulator of sex determination and/or gonadal sex differentiation across metazoan animals. This is unusual given that sex determination genes are typically not well conserved. The mechanisms by which zebrafish sex is determined have remained elusive due to the lack of sex chromosomes and the complex polygenic nature of sex determination in domesticated strains. To investigate the role of dmrt1 in zebrafish sex determination and gonad development, we isolated mutations disrupting this gene...
December 8, 2016: Developmental Biology
https://www.readbyqxmd.com/read/27914838/lacrimal-gland-involvement-in-blepharophimosis-ptosis-epicanthus-inversus-syndrome
#14
Ana Filipa Duarte, Patricia M S Akaishi, Greice A de Molfetta, Salomão Chodraui-Filho, Murilo Cintra, Alcina Toscano, Wilson Araujo Silva, Antonio A V Cruz
PURPOSE: To describe the involvement of the lacrimal gland (LG) in blepharophimosis-ptosis-epicanthus inversus syndrome (BPES). DESIGN: Observational, cross-sectional study. PARTICIPANTS: Twenty-one patients with BPES (10 female, 11 male) aged on average 15 years (range, 2-39 years), from 3 Brazilian medical centers and 1 Portuguese medical center. METHODS: Patients had their ocular surface evaluated with slit-lamp biomicroscopy, and tear production quantified with the Schirmer test I...
November 30, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27885666/differential-expression-of-foxl2-and-cyp19a1a-mrna-during-gonad-developmental-stages-in-great-sturgeon-huso-huso
#15
M Yarmohammadi, M Pourkazemi, R Kazemi
This study aimed to determine the sex specificity and expression pattern of foxl2 and cyp19a1a genes in great sturgeon Huso huso gonads during gonadal sex differentiation and development. The results revealed that foxl2 and cyp19a1a mainly expressed in female gonads and during gonad development the foxl2 and cyp19a1a mRNA expression is required for ovarian development.
November 25, 2016: Journal of Fish Biology
https://www.readbyqxmd.com/read/27830327/lack-of-mutation-of-dicer1-and-foxl2-genes-in-microcystic-stromal-tumor-of-the-ovary
#16
Alexandra Meurgey, Françoise Descotes, Eliane Mery-Lamarche, Mojgan Devouassoux-Shisheboran
Microcystic stromal tumors (MCST), first described in 2009 by Irving et al., are rare ovarian neoplasms. The entity was introduced into the 2014 WHO classification of tumors of female reproductive organs in the group of sex cord-stromal tumors, which is rather heterogeneous. We studied three cases of ovarian tumor with the characteristic morphological features and immunohistochemical marker profiles of MCST. The three tumors showed micro, and macrocystic patterns with solid areas, and were composed of small round to spindle-shaped cells, without atypia...
February 2017: Virchows Archiv: An International Journal of Pathology
https://www.readbyqxmd.com/read/27813081/genetics-and-genomics-of-ovarian-sex-cord-stromal-tumors
#17
REVIEW
P J Fuller, D Leung, S Chu
Ovarian sex cord-stromal tumors (SCST) represent approximately 8% of malignant ovarian tumors. The most common are granulosa cell tumors (GCT) which account for approximately 90% of malignant SCST. Recent studies have unraveled the key genomic and genetic events contributing to their pathogenesis. SCST are found in the hereditary syndromes: Peutz-Jeghers syndrome, Ollier disease and Maffucci syndrome, and DICER1 syndrome. Genomic studies have largely been limited to GCT where a number of recurring chromosomal abnormalities (monsomy and trisomy) have been identified although their contribution to pathogenesis remains unclear...
February 2017: Clinical Genetics
https://www.readbyqxmd.com/read/27810492/molecular-initiating-events-of-the-intersex-phenotype-low-dose-exposure-to-17%C3%AE-ethinylestradiol-rapidly-regulates-molecular-networks-associated-with-gonad-differentiation-in-the-adult-fathead-minnow-testis
#18
April Feswick, Jennifer R Loughery, Meghan A Isaacs, Kelly R Munkittrick, Christopher J Martyniuk
Intersex, or the presence of oocytes in the testes, has been documented in fish following exposure to wastewater effluent and estrogenic compounds. However, the molecular networks underlying the intersex condition are not completely known. To address this, we exposed male fathead minnows to a low, environmentally-relevant concentration of 17alpha-ethinylestradiol (EE2) (15ng/L) and measured the transcriptome response in the testis after 96h to identify early molecular initiating events that may proceed the intersex condition...
December 2016: Aquatic Toxicology
https://www.readbyqxmd.com/read/27810330/foxl2-402c-g-mutation-can-be-identified-in-the-circulating-tumor-dna-of-patients-with-adult-type-granulosa-cell-tumor
#19
Anniina Färkkilä, Melissa K McConechy, Winnie Yang, Aline Talhouk, Ying Ng, Amy Lum, Ryan D Morin, Kevin Bushell, Annika Riska, Jessica N McAlpine, C Blake Gilks, Leila Unkila-Kallio, Mikko Anttonen, David G Huntsman
Adult granulosa cell tumors (AGCTs) of the ovary are molecularly characterized by the pathognomonic FOXL2 402C>G (C134W) mutation. To improve diagnostics and follow-up, we developed a specific digital droplet PCR (ddPCR) assay to detect the FOXL2 mutation in the circulating tumor DNA (ctDNA) of AGCT patients. Optimization of the ddPCR assay was performed using a TaqMan primer/probe with the RainDance RainDrop digital PCR system. The ddPCR assay was performed on circulating cell-free DNA extracted from 120 serial plasma samples collected prospectively from 35 AGCT patients...
January 2017: Journal of Molecular Diagnostics: JMD
https://www.readbyqxmd.com/read/27801941/non-coding-variation-in-disorders-of-sex-development
#20
REVIEW
D Baetens, B B Mendonça, H Verdin, M Cools, E De Baere
Genetic studies in Disorders of Sex Development (DSD), representing a wide spectrum of developmental or functional conditions of the gonad, have mainly been oriented towards the coding genome. Application of genomic technologies, such as whole-exome sequencing, result in a molecular genetic diagnosis in ∼50% of cases with DSD. Many of the genes mutated in DSD encode transcription factors such as SRY, SOX9, NR5A1, and FOXL2, characterized by a strictly regulated spatiotemporal expression. Hence, it can be hypothesized that at least part of the missing genetic variation in DSD can be explained by non-coding mutations in regulatory elements that alter gene expression, either by reduced, mis- or overexpression of their target genes...
February 2017: Clinical Genetics
keyword
keyword
36882
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"