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Granulosa theca cell

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https://www.readbyqxmd.com/read/27888191/wt1-directs-the-lineage-specification-of-sertoli-and-granulosa-cells-by-repressing-sf1-expression
#1
Min Chen, Lianjun Zhang, Xiuhong Cui, Xiwen Lin, Yaqiong Li, Yaqing Wang, Yanbo Wang, Yan Qin, Dahua Chen, Chunsheng Han, Bin Zhou, Vicki Huff, Fei Gao
Supporting cells (Sertoli and granulosa) and steroidogenic cells (Leydig and theca-interstitium) are two major somatic cell types in mammalian gonads. However, the mechanisms that control their differentiation during gonad development remain elusive. In this study, we found deletion of Wt1 in ovary after sex determination caused ectopic development of steroidogenic cells at embryonic stage. Furthermore, the differentiation of both Sertoli and granulosa cells was blocked when Wt1 was deleted before sex determination and most genital ridge somatic cells differentiated into steroidogenic cells in both male and female gonads...
November 25, 2016: Development
https://www.readbyqxmd.com/read/27872196/induction-of-ectonucleotide-pyrophosphatase-phosphodiesterase-3-during-the-periovulatory-period-in-the-rat-ovary
#2
Fei-Xue Li, Jiao-Jiao Yu, Ying Liu, Xiao-Ping Miao, Thomas E Curry
Ectonucleotide pyrophosphatase/phosphodiesterase 3 (Enpp3) is involved in multiple physiological processes, such as morphological changes and inflammatory processes. The present study investigated the spatiotemporal expression pattern and regulatory mechanisms controlling expression of Enpp3 in the rat ovary during the periovulatory period. Immature female rats were injected with pregnant mare serum gonadotropin to stimulate follicular development. Ovaries, granulosa cells, or theca-interstitial cells were collected at various times after human chorionic gonadotropin (hCG) administration...
November 20, 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27842549/acth-induced-stress-in-weaned-sows-impairs-lh-receptor-expression-and-steroidogenesis-capacity-in-the-ovary
#3
H S Zhu, Z Qian, H L Liu, E D Bao
BACKGROUND: Stress has been proved to impair the porcine reproduction soundly. Endocrine disruption, which is closely related to the persistent follicles, is possibly one of the results of stress, although the mechanism is unclear. Since the expression of luteinizing hormone receptor (LHR) in ovarian follicular wall and concentrations of steroid hormone in follicular fluid are related to the development of persistent follicles, this study is designed to evaluate the effect of administered adrenocorticotrophic hormone (ACTH) to weaned pigs on their ovarian steroidogenesis capacity and LHR expression...
November 14, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27821561/the-ovarian-renin-angiotensin-system-ovras-a-major-factor-in-ovarian-function-and-disease
#4
Angela Palumbo, Julio Ávila, Frederick Naftolin
This contribution summarizes the pivotal role of the ovarian renin-angiotensin system (OVRAS) in ovarian physiology and disease, with particular emphasis on human clinical implications and established translational applications. The presence of a complete OVRAS in all studied species has been known for decades. The OVRAS has major effects on follicle development/atresia and ovulation and steroid hormone secretion, that is, it is necessary for normal reproduction. It is well established that OVRAS activity is regulated by gonadotropins and depends on activation of proteases in the area of growing follicles...
December 2016: Reproductive Sciences
https://www.readbyqxmd.com/read/27816766/fibroblast-growth-factor-9-fgf9-regulation-of-cyclin-d1-and-cyclin-dependent-kinase-4-in-ovarian-granulosa-and-theca-cells-of-cattle
#5
M L Totty, B C Morrell, L J Spicer
To determine the mechanism by which fibroblast growth factor 9 (FGF9) alters granulosa (GC) and theca (TC) cell proliferation, cell cycle proteins that regulate progression through G1 phase of the cell cycle, cyclin D1 (CCND1) and cyclin-dependent kinase-4 (CDK4; CCND1's catalytic partner), were evaluated. Ovaries were obtained from a local abattoir, GC were harvested from small (1-5 mm) and large (8-22 mm) follicles, and TC were harvested from large follicles. GC and TC were plated in medium containing 10% fetal calf serum followed by various treatments in serum-free medium...
November 3, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27813674/induction-of-tissue-factor-pathway-inhibitor-2-by-hcg-regulates-periovulatory-gene-expression-and-plasmin-activity
#6
Muraly Puttabyatappa, Linah F Al-Alem, Farnosh Zakerkish, Katherine L Rosewell, Mats Brännström, Thomas E Curry
A key event during the process of ovulation is an increased proteolytic activity that aids in breakdown of the follicular wall to permit oocyte release. How the activity of these proteases is regulated is still not known. We hypothesize that Tissue Factor Pathway Inhibitor 2 (TFPI2), a matrix-associated Kunitz-type serine protease inhibitor, plays a role in regulating proteolytic activity during the periovulatory period as in other tissues. TFPI2 is secreted into the extracellular matrix (ECM) where it is postulated to regulate physiological ECM remodeling...
November 4, 2016: Endocrinology
https://www.readbyqxmd.com/read/27797914/oocyte-somatic-cell-interactions-in-the-human-ovary-novel-role-of-bone-morphogenetic-proteins-and-growth-differentiation-factors
#7
REVIEW
Hsun-Ming Chang, Jie Qiao, Peter C K Leung
BACKGROUND: Initially identified for their capability to induce heterotopic bone formation, bone morphogenetic proteins (BMPs) are multifunctional growth factors that belong to the transforming growth factor β superfamily. Using cellular and molecular genetic approaches, recent studies have implicated intra-ovarian BMPs as potent regulators of ovarian follicular function. The bi-directional communication of oocytes and the surrounding somatic cells is mandatory for normal follicle development and oocyte maturation...
October 26, 2016: Human Reproduction Update
https://www.readbyqxmd.com/read/27769286/relationship-between-advanced-glycation-end-products-and-steroidogenesis-in-pcos
#8
Deepika Garg, Zaher Merhi
BACKGROUND: Women with PCOS have elevated levels of the harmful Advanced Glycation End Products (AGEs), which are highly reactive molecules formed after glycation of lipids and proteins. Additionally, AGEs accumulate in the ovaries of women with PCOS potentially contributing to the well-documented abnormal steroidogenesis and folliculogenesis. MAIN BODY: A systematic review of articles and abstracts available in PubMed was conducted and presented in a systemic manner...
October 21, 2016: Reproductive Biology and Endocrinology: RB&E
https://www.readbyqxmd.com/read/27763207/potential-use-of-anti-apoptotic-proteins-and-non-coding-rnas-in-in-vitro-follicular-growth-and-ovarian-tissue-engineering
#9
Yoon Kim, Amin Tamadon, Seung-Yup Ku
In vitro culture of ovarian follicles is a promising bioengineering technique for preserving fecundity in reproductive age female by providing fertilizable oocytes. Successful clinical application should be preceded by developing the protocols that can efficiently overcome follicular cell apoptosis since the apoptosis is a critical phenomenon in in vivo folliculogenesis and in in vitro follicular maturation. Numerous pro-survival and anti-apoptotic molecules including follicular developmental regulators have been reported to be involved in the intra-ovarian apoptosis...
October 20, 2016: Tissue Engineering. Part B, Reviews
https://www.readbyqxmd.com/read/27760586/effects-of-angiogenin-on-granulosa-and-theca-cell-function-in-cattle
#10
J L Dentis, N B Schreiber, A M Burress, L J Spicer
Angiogenin is a member of the ribonuclease A superfamily of proteins that has been implicated in stimulating angiogenesis but whether angiogenin can directly affect ovarian granulosa or theca cell function is unknown. Therefore, the objective of these studies was to determine the effect of angiogenin on proliferation and steroidogenesis of bovine granulosa and theca cells. In experiments 1 and 2, granulosa cells from small (1 to 5 mm diameter) follicles and theca cells from large (8 to 22 mm diameter) follicles were cultured to evaluate the dose-response effect of recombinant human angiogenin on steroidogenesis...
October 20, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27756855/inhibin-b-secretion-and-fsh-isoform-distribution-may-play-an-integral-part-of-follicular-selection-in-the-natural-menstrual-cycle
#11
REVIEW
C Yding Andersen
The aim of the present paper is to expand the concept on how follicular selection takes place in the follicular phase of the natural menstrual cycle. It is suggested that inhibin-B exerts a more intimate role in this process than previously understood. Inhibin-B shows a peak in the circulation around cycle day 7, simultaneous with selection of the dominant follicle, whereas levels of estradiol and inhibin-A only start to increase a few days later suggesting that inhibin-B is mainly responsible for downregulating pituitary FSH release...
October 18, 2016: Molecular Human Reproduction
https://www.readbyqxmd.com/read/27746409/an-immortalized-steroidogenic-goat-granulosa-cell-line-as-a-model-system-to-study-the-effect-of-the-endoplasmic-reticulum-er-stress-response-on-steroidogenesis
#12
Diqi Yang, Lei Wang, Pengfei Lin, Tingting Jiang, Nan Wang, Fan Zhao, Huatao Chen, Keqiong Tang, Dong Zhou, Aihua Wang, Yaping Jin
With granulosa and theca cells, the ovaries are responsible for producing oocytes and secreting sex steroids such as estrogen and progesterone. Endoplasmic reticulum stress (ERS) plays an important role in follicle atresia and embryo implantation. In this study, goat granulosa cells were isolated from medium-sized (4-6 mm) healthy follicles. Primary granulosa cells were immortalized by transfection with human telomerase reverse transcriptase (hTERT) to establish a goat granulosa cell line (hTERT-GGCs). These hTERT-GGCs expressed hTERT and had relatively long telomeres at passage 50...
October 15, 2016: Journal of Reproduction and Development
https://www.readbyqxmd.com/read/27716808/bovine-lhx8-a-germ-cell-specific-nuclear-factor-interacts-with-figla
#13
Liyuan Fu, Mingxiang Zhang, Kristen Mastrantoni, Mark Perfetto, Shuo Wei, Jianbo Yao
LIM homeobox 8 (Lhx8) is a germ cell-specific transcription factor essential for the development of oocytes during early oogenesis. In mice, Lhx8 deficiency causes postnatal oocyte loss and affects the expression of many oocyte-specific genes. The aims of this study were to characterize the bovine Lhx8 gene, determine its mRNA expression during oocyte development and early embryogenesis, and evaluate its interactions with other oocyte-specific transcription factors. The bovine Lhx8 gene encodes a protein of 377 amino acids...
2016: PloS One
https://www.readbyqxmd.com/read/27693538/gene-expression-profiling-of-bovine-ovarian-follicular-and-luteal-cells-provides-insight-into-cellular-identities-and-functions
#14
Sarah M Romereim, Adam F Summers, William E Pohlmeier, Pan Zhang, Xiaoying Hou, Heather A Talbott, Robert A Cushman, Jennifer R Wood, John S Davis, Andrea S Cupp
After ovulation, somatic cells of the ovarian follicle (theca and granulosa cells) become the small and large luteal cells of the corpus luteum. Aside from known cell type-specific receptors and steroidogenic enzymes, little is known about the differences in the gene expression profiles of these four cell types. Analysis of the RNA present in each bovine cell type using Affymetrix microarrays yielded new cell-specific genetic markers, functional insight into the behavior of each cell type via Gene Ontology Annotations and Ingenuity Pathway Analysis, and evidence of small and large luteal cell lineages using Principle Component Analysis...
September 28, 2016: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/27686972/l-dopa-in-the-hu-man-ovarian-follicular-fluid-acts-as-an-antioxidant-factor-on-granulosa-cells
#15
J Blohberger, T Buck, D Berg, U Berg, L Kunz, A Mayerhofer
BACKGROUND: A previous study showed that dopamine (DA), which is contained in follicular fluid (FF) from IVF patients, strongly increased the production of reactive oxygen species (ROS) by cultured human granulosa cells (GCs). ROS, including H2O2, are assumed to play roles in ovarian physiology and pathology. Ovarian DA could be derived from the circulation, ovarian innervation and/or unknown ovarian sources. L-DOPA is the direct precursor of DA in its synthetic pathway. It was not yet described in FF...
September 29, 2016: Journal of Ovarian Research
https://www.readbyqxmd.com/read/27683264/apelin-apln-and-apelin-receptor-aplnr-in-human-ovary-expression-signaling-and-regulation-of-steroidogenesis-in-primary-human-luteinized-granulosa-cells
#16
Jennifer Roche, Christelle Ramé, Maxime Reverchon, Namya Mellouk, Marion Cornuau, Fabrice Guerif, Pascal Froment, Joëlle Dupont
Apelin (APLN) is a recently discovered adipokine involved in the regulation of various metabolic functions. Its receptor, APLNR, is expressed in reproductive tissues, however, its role in human ovarian cells is unknown. In this study we identified APLN and APLNR in human ovarian follicles and analyzed their expression in granulosa cells and follicular fluid obtained from obese and non-obese patients, with or without polycystic ovary syndrome (PCOS). We also investigated the effect of APLN on steroidogenesis in cultured human luteinized granulosa cells (hGCs) from non-obese patients without PCOS...
September 28, 2016: Biology of Reproduction
https://www.readbyqxmd.com/read/27665503/screening-for-dna-adducts-in-ovarian-follicles-exposed-to-benzo-a-pyrene-and-cigarette-smoke-condensate-using-liquid-chromatography-tandem-mass-spectrometry
#17
Chunhe Yao, Warren G Foster, Jean C Sadeu, Shabana Siddique, Jiping Zhu, Yong-Lai Feng
A rapid mass spectrometric method was applied to non-targeted screening of DNA adducts in follicular cells (granulosa cells and theca cells) from isolated ovarian follicles that were exposed in-vitro to benzo[a]pyrene (B[a]P) and cigarette smoke condensate (CSC) for 13days of culture. The method employed a constant neutral loss (CNL) scan to identify chromatographic peaks associated to a neutral loss of deoxyribose moiety of DNA nucleosides. These peaks were subsequently analyzed by a product ion scan in tandem mass spectrometry to elucidate structures of DNA adducts...
September 21, 2016: Science of the Total Environment
https://www.readbyqxmd.com/read/27664382/a-mirna-target-network-putatively-involved-in-follicular-atresia
#18
F X Donadeu, B T Mohammed, J Ioannidis
In a previous microarray study, we identified a subset of micro RNAS (miRNAs), which expression was distinctly higher in atretic than healthy follicles of cattle. In the present study, we investigated the involvement of those miRNAs in granulosa and theca cells during atresia. Reverse Transcription-quantitative Polymerase Chain Reaction (RT-qPCR) confirmed that miR-21-5p/-3p, miR-150, miR-409a, miR-142-5p, miR-378, miR-222, miR-155, and miR-199a-5p were expressed at higher levels in atretic than healthy follicles (9-17 mm, classified based on steroidogenic capacity)...
January 2017: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27663377/expression-and-localization-of-fibroblast-growth-factor-fgf-family-in-buffalo-ovarian-follicle-during-different-stages-of-development-and-modulatory-role-of-fgf2-on-steroidogenesis-and-survival-of-cultured-buffalo-granulosa-cells
#19
S R Mishra, N Thakur, A Somal, M S Parmar, R Reshma, G Rajesh, V P Yadav, M K Bharti, Jaya Bharati, A Paul, V S Chouhan, G T Sharma, G Singh, M Sarkar
The present study investigated the expression and localization of FGF and its functional receptors in the follicle of buffalo and the treatment of FGF2 on mRNA expression of CYP19A1 (aromatase), PCNA, and BAX (BCL-2 associated X protein) in cultured buffalo granulosa cells (GCs). Follicles were classified into four groups based on size and E2 level in follicular fluid (FF): F1, 4-6mm diameter, E2<0.5ng/ml of FF; F2, 7-9mm, E2=0.5-5ng/ml; F3, 10-13mm, E2=5-40ng/ml; F4, >14mm, E2>180ng/ml. The qPCR studies revealed that the mRNA expression of FGF1, FGF2 and FGF7 were maximum (P<0...
October 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27662902/rhog-dock1-rac1-signaling-axis-is-perturbed-in-dhea-induced-polycystic-ovary-in-rat-model
#20
Vaibhave Ubba, Upendra Kumar Soni, Sangappa Chadchan, Vineet Kumar Maurya, Vijay Kumar, Ruchika Maurya, Himanshu Chaturvedi, Rajender Singh, Anila Dwivedi, Rajesh Kumar Jha
The function of RHOG, a RAC1 activator, was explored in the ovary during ovarian follicular development and pathological conditions. With the help of immunoblotting and immunolocalization, we determined the expression and localization of RHOG in normal (estrous cycle) and polycystic ovaries using Sprague Dawley (SD) rat model. Employing polymerase chain reaction and flow cytometry, we analyzed the transcript and expression levels of downstream molecules of RHOG, DOCK1, and RAC1 in the polycystic ovarian syndrome (PCOS) ovary along with normal antral follicular theca and granulosa cells after dehydroepiandrosterone (DHEA) supplementation...
September 22, 2016: Reproductive Sciences
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