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ovarian growth factors

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https://www.readbyqxmd.com/read/28542147/restricting-the-induction-of-ngf-in-ovarian-stroma-engenders-selective-follicular-activation-through-the-mtor-signaling-pathway
#1
Yuanlin He, Xiaoxu Peng, Tinghe Wu, Weijie Yang, Wenwen Liu, Jing Zhang, Yiping Su, Feifei Kong, Xiaowei Dou, Jing Li
In mammalian ovaries, primordial follicles remain in a quiescent state until activation by the surrounding microenvironment. Ovarian intervention, for example, ovarian cystectomy, ovarian wedge resection or laser drilling therapies for polycystic ovarian syndrome, has long been reported to change follicular development by an unknown mechanism(s). Herein, we established a murine model with partial ovarian resection of one ovary unilaterally, with the contralateral ovary undamaged. We found the injury accelerated follicular activation and development through the mTORC1 signaling pathway...
May 25, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28539283/-effect-of-globular-adiponectin-on-proliferation-migration-and-tube-formation-of-ovarian-microvascular-endothelial-cells
#2
Lei Chen, Xiao-Sheng Lu, Ya-Lan Li, Zhou-Fei Mao, Luan-Juan Xiao, Yan-Hong Yu
OBJECTIVE: To analyze the effect of globular adiponectin on angiogenesis of ovarian microvascular endothelial cells (OMECs). METHODS: Mouse OMECs were isolated and purified by density gradient centrifugation with Percoll and identified by immunofluorescence analysis of follicle-stimulating hormone receptor (FSHR), luteinizing hormone receptor (LHR), and endothelial cell marker von Willebrand factor (vWF). The capillary-like tube formation of OMECs was determined by vascular endothelial growth factor A (VEGFA) treatment in Matrigel matrix...
May 20, 2017: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/28534973/role-of-x%C3%A2-linked-inhibitor-of-apoptosis%C3%A2-associated-factor%C3%A2-1-in-vasculogenic-mimicry-in-ovarian-cancer
#3
Yunxia Wang, Peishu Liu, Xietong Wang, Hongluan Mao
X-linked inhibitor of apoptosis‑associated factor 1 (XAF1) was identified as a novel X-linked inhibitor of apoptosis (XIAP) binding partner that may reverse the anti‑apoptotic effect of XIAP. Previous studies have revealed that XAF1 serves an important role in cancer angiogenesis. Vasculogenic mimicry (VM) describes the formation of fluid‑conducting channels by highly invasive and genetically dysregulated tumor cells. VM is critical for tumor blood supply and is associated with aggressive actions and metastasis...
May 17, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28521455/kdm3a-promotes-inhibitory-cytokines-secretion-by-participating-in-tlr4-regulation-of-foxp3-transcription-in-lung-adenocarcinoma-cells
#4
Yinan Li, Wei Yang, Bin Wu, Yaqing Liu, Dongbei Li, Yantong Guo, Haiying Fu, Yi Li
Toll-like receptor 4 (TLR4) is a pattern recognition receptors, a member of the Toll-like receptor family and it serves a role in innate and acquired immunity. It has previously been reported that TLR4 was overexpressed in a variety of tumor tissues and cells, including colorectal cancer, gastric cancer and ovarian cancer. In the tumor microenvironment, the TLR4 signaling pathway may be activated in order to upregulate forkhead box P3 (Foxp3) expression in regulatory T cells (Tregs), and thus enhance the immunosuppressive function of Tregs...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28506076/nos2-as-an-emergent-player-in-progression-of-cancer
#5
Douglas D Thomas, David A Wink
Though the inducible form of nitric oxide synthase (NOS2) was initially shown to be a major player as an anti-tumor component of the immune response, more recent data has shown that NOS2 expression in cancer cells often predicts poor outcome. Unlike growth factors associated with a single oncogenic pathway, nitric oxide (NO) has a ubiquitous nature where it simultaneously mediates major oncogenic pathways from Akt/PI3K and RAS/ERK to HIF1a and TGFb. These interactive loops perpetuate oncogenic mechanism that lead to increased cancer stemness, proliferation metastasis, chemoresistance, angiogenesis, and immunosuppression...
May 15, 2017: Antioxidants & Redox Signaling
https://www.readbyqxmd.com/read/28498260/combined-gene-therapy-using-adsvegfr2-and-adstie2-with-chemotherapy-reduces-the-growth-of-human-ovarian-cancer-and-formation-of-ascites-in-mice
#6
Laura Tuppurainen, Hanna Sallinen, Anni Karvonen, Elina Valkonen, Hanne Laakso, Timo Liimatainen, Elisa Hytönen, Kirsi Hämäläinen, Veli-Matti Kosma, Maarit Anttila, Seppo Ylä-Herttuala
OBJECTIVES: Ovarian cancer is highly dependent on tumor microvessels and angiogenesis regulated by vascular endothelial growth factors (VEGFs) and their receptors (VEGFRs) and angiopoietins (Ang) and their Tie receptors. We studied the efficacy of adenoviral (Ad) gene therapy with soluble VEGFR2 and Tie2 combined with paclitaxel and carboplatin for the treatment of ovarian cancer. METHODS: An intraperitoneal human ovarian cancer xenograft model in nude mice (n = 44) was used in this study...
June 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28495238/uncovering-the-role-of-nuclear-lysyl-oxidase-lox-in-advanced-high-grade-serous-ovarian-cancer
#7
Marta De Donato, Marco Petrillo, Enrica Martinelli, Flavia Filippetti, Gian Franco Zannoni, Giovanni Scambia, Daniela Gallo
OBJECTIVE: Lysyl oxidase (LOX) is an enzyme that catalyzes the cross-linking of collagen and elastin in the extracellular matrix, thus controlling the tensile strength of tissues. Along with this primary function, there are evidences supporting a role for LOX in many critical biological functions, including gene expression regulation, cell growth, adhesion and migration. Accordingly, recent studies have supported a pivotal role for LOX in cancer progression and metastasis. The current study aimed at investigating the prognostic significance and the functional role of intracellular LOX in ovarian cancer...
May 8, 2017: Gynecologic Oncology
https://www.readbyqxmd.com/read/28494447/stromal-growth-differentiation-factor-15-and-its-association-with-ovarian-cancer
#8
Cid A Lima, Millena P Jammal, Agrimaldo Martins-Filho, Thales Parenti Silveira, Douglas C Micheli, Beatriz M Tavares-Murta, Eddie F C Murta, Rosekeila Simões Nomelini
BACKGROUND/AIMS: Growth differentiation factor 15 (GDF-15) is induced by pro-inflammatory cytokines. Higher levels of GDF-15 have been associated with malignancy. The aim of the study was to evaluate both tissue and serum levels of GDF-15 in ovarian neoplasms. METHODS: A cohort study evaluated 31 patients with benign ovarian tumors and 34 patients with ovarian cancer were evaluated in 2 years. The inclusion criterion was histopathological diagnosis of ovarian epithelial neoplasia...
May 12, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28490659/runx-transcription-factors-at-the-interface-of-stem-cells-and-cancer
#9
REVIEW
Elitza Deltcheva, Rachael Nimmo
The RUNX1 transcription factor is a critical regulator of normal haematopoiesis and its functional disruption by point mutations, deletions or translocations is a major causative factor leading to leukaemia. In the majority of cases, genetic changes in RUNX1 are linked to loss of function classifying it broadly as a tumour suppressor. Despite this, several recent studies have reported the need for a certain level of active RUNX1 for the maintenance and propagation of acute myeloid leukaemia and acute lymphoblastic leukaemia cells, suggesting an oncosupportive role of RUNX1...
May 10, 2017: Biochemical Journal
https://www.readbyqxmd.com/read/28488543/the-transcription-factor-foxa1-induces-epithelial-ovarian-cancer-tumorigenesis-and-progression
#10
Li-Li Wang, Yin-Ling Xiu, Xi Chen, Kai-Xuan Sun, Shuo Chen, Dan-Dan Wu, Bo-Liang Liu, Yang Zhao
FOXA1 (forkhead box A1), a member of the FOXA transcription factor superfamily, plays an important role in tumor occurrence and development. However, the relationship between FOXA1 and ovarian cancer has not been reported. We examined normal ovarian tissue and ovarian cancer tissue and found increased FOXA1 expression in the cancer tissue. 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide and flow cytometry assays demonstrated that transfection with small interfering RNA to silence FOXA1 (si-FOXA1) in ovarian cancer cell lines decreased cell proliferation and induced apoptosis and S-phase arrest...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28488542/cxcl11-mediates-twist1-induced-angiogenesis-in-epithelial-ovarian-cancer
#11
Yu-Jin Koo, Tae-Jin Kim, Kyung-Jin Min, Kyeong-A So, Un-Suk Jung, Jin-Hwa Hong
To investigate the role of TWIST1 in tumor angiogenesis in epithelial ovarian cancer and to identify key molecules involved in angiogenesis. TWIST1 small interfering RNA was transfected into A2780 cells, while a complementary DNA vector was transfected into non-malignant human ovarian surface epithelial cells to generate a TWIST1-overexpressing cell line. To evaluate how this affects angiogenesis, human umbilical vein endothelial cell tube formation assays were performed using the control and transfected cell lines...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28484923/circulating-levels-of-obesity-related-markers-and-risk-of-renal-cell-carcinoma-in-the-plco-cancer-screening-trial
#12
Linda M Liao, Jonathan N Hofmann, Eunyoung Cho, Michael N Pollak, Wong-Ho Chow, Mark P Purdue
PURPOSE: Obesity is an established risk factor for renal cell carcinoma (RCC). It is unclear what biologic mechanisms underlie this association, although recent evidence suggests that the effects of circulating hormones such as insulin-like growth factors (IGF) and adipokines may play a role. METHODS: To address this question, we conducted a nested case-control study of RCC (252 cases, 252 controls) within the Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial investigating associations with pre-diagnostic serum levels of total adiponectin, high-molecular-weight (HMW) adiponectin, IGF-1, IGF-binding protein-3 (IGFBP-3), and C-peptide...
May 8, 2017: Cancer Causes & Control: CCC
https://www.readbyqxmd.com/read/28477178/antiangiogenics-and-immunotherapies-in-cervical-cancer-an-update-and-future-s-view
#13
REVIEW
Daniela Luvero, Francesco Plotti, Salvatore Lopez, Giuseppe Scaletta, Stella Capriglione, Roberto Montera, Gianina Antonelli, Sara Ciuffreda, Raffaella Carassiti, Alice Oliveti, Roberto Angioli
Despite availability of primary and secondary prevention measures, cervical cancer (CC) persists as one of the most common cancers among women around the world, and more than 70% of cases are diagnosed at advanced stages. Although significant progress has been made in the treatment of CC, around 15-61% of patients develop a recurrence in lymph nodes or distant sites within the first 2 years of completing treatment and the prognosis for these patients remains poor. During the last decades, in an attempt to improve the outcome in these patients, novel agents as combination therapy that target known dysfunctional molecular pathways have been developed with the most attention to the inhibitors of the angiogenesis process...
June 2017: Medical Oncology
https://www.readbyqxmd.com/read/28475012/the-role-of-sox6-and-netrin-1-in-ovarian-cancer-cell-growth-invasiveness-and-angiogenesis
#14
Yi Li, Ming Xiao, Fangchun Guo
SOX6 plays important roles in cell proliferation, differentiation, and cell fate determination. It has been confirmed that SOX6 is a tumor suppressor and downregulated in various cancers, including esophageal squamous cell carcinoma, hepatocellular carcinoma, and chronic myeloid leukemia. Netrin-1 is highly expressed in various human cancers and acts as an anti-apoptotic and proangiogenic factor to drive tumorigenesis. The role of SOX6 and netrin-1 in regulating the growth of ovarian tumor cells still remains unclear...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28473896/changes-in-the-expression-of-oct4-in-mouse-ovary-during-estrous-cycle
#15
Narges Bagheripour, Saeed Zavareh, Mohammad Taghi Ghorbanian, Seyed Hassan Paylakhi, Seyed Reza Mohebbi
The transcriptional factor OCT4 regulates pluripotency of stem cells and has an important role during oocyte growth. Whereas, its role has remained ambiguous in ovarian tissue during reproductive cycle. Therefore, this study was aimed to investigate the expression patterns of OCT4 in mouse ovaries during the normal estrous cycle. Adult National Medical Research Institute mice were classified as proestrous, estrous, metestrous and diestrous on the basis of vaginal smear cytology. Their ovaries were removed and the protein and gene expression levels of OCT4 were assessed using immunohistochemical staining and real-time quantitative reverse-transcription PCR, respectively...
2017: Veterinary Research Forum
https://www.readbyqxmd.com/read/28473352/mir-21-is-involved-in-norepinephrine-mediated-rat-granulosa-cell-apoptosis-by-targeting-smad7
#16
Li Zhang, Jie Gao, Sheng Cui
Substantive evidence has indicated that the sympathetic innervation contributes to the regulation and development of ovarian functions. Norepinephrine (NE) is one of the major neurotransmitters contained in the extrinsic ovarian sympathetic nerves and is thought to be a potent moderator of ovarian functions such as steroidogenesis and granulosa cell proliferation or apoptosis. However, the mechanisms of NE regulation of granulosa cell apoptosis in the rat ovary are rare. Real-time PCR and Western blot results show that NE regulates the expression of miR-21 in primary granulosa cells in a dose-dependent manner...
May 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/28472127/expression-of-teneurins-is-associated-with-tumor-differentiation-and-patient-survival-in-ovarian-cancer
#17
Rebecca Graumann, Gabriella A Di Capua, Juan E Oyarzún, Marcos A Vásquez, Christine Liao, Jorge A Brañes, Iván Roa, Paola Casanello, Alejandro H Corvalán, Gareth I Owen, Iris Delgado, Uwe Zangemeister-Wittke, Annemarie Ziegler
Teneurins are a family of highly conserved pair-rule proteins involved in morphogenesis and development of the central nervous system. Their function in adult tissues and in disease is largely unknown. Recent evidence suggests a role for dysregulated expression of Teneurins in human tumors, but systematic investigations are missing. Here, we investigated Teneurin-2 and Teneurin-4 expression in various cancer cell lines and in ovarian tumor tissues. Teneurin-2 and Teneurin-4 were expressed in most of the breast cancer cell lines tested...
2017: PloS One
https://www.readbyqxmd.com/read/28469773/crizotinib-synergizes-with-cisplatin-in-preclinical-models-of-ovarian-cancer
#18
Xiao-Xiu Huang, Feng-Feng Xie, Li-Jiao Hou, Xiu-Xiu Chen, Rong-Ying Ou, Jiang-Tao Yu, Jian-Ge Qiu, Wen-Ji Zhang, Qi-Wei Jiang, Yang Yang, Di-Wei Zheng, Yao Chen, Jia-Rong Huang, Kun Wang, Meng-Ning Wei, Wen-Feng Li, Zhi Shi, Xiao-Jian Yan
Crizotinib, a small molecule inhibitor of anaplastic lymphoma kinase (ALK), c-ros oncogene 1 (ROS1) and c-MET (also called MET or hepatocyte growth factor receptor), has been approved by the Food and Drug Administration for the treatment of patients with advanced non-small cell lung cancer whose tumors have rearrangements in the ALK or ROS1 gene. However, the anticancer effect of crizotinib on ovarian cancer is still unclear. In this study, our data show that crizotinib can actively induce cell growth inhibition, cell cycle arrest at G2/M phase and apoptosis with the decreasing phosphorylation of the downstream signaling effectors AKT and ERK in human ovarian cancer cells...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/28467682/transcriptional-control-of-genes-mediating-ovarian-follicular-growth-differentiation-and-steroidogenesis-in-pigs
#19
REVIEW
Holly A LaVoie
The pig is an agriculturally important species, so understanding its follicular dynamics and the transcriptional events that accompany such changes is critical to optimizing reproductive outcomes. Numerous small- to medium-size antral follicles are recruited and continue growth under the influence of gonadotropins and growth factors during the follicular phase of the porcine estrous cycle. Several of these follicles are selected to mature into large preovulatory follicles whose granulosa cells acquire luteinizing hormone (LH) receptors...
May 3, 2017: Molecular Reproduction and Development
https://www.readbyqxmd.com/read/28466233/age-related-expression-of-tgf-beta-family-receptors-in-human-cumulus-oophorus-cells
#20
A Ribeiro, C Freitas, L Matos, A Gouveia, F Gomes, J L Silva Carvalho, H Almeida
PURPOSE: During ovarian follicle growth, local cellular interactions are essential for oocyte quality acquisition and successful fertilization. While cumulus cells (CCs) nurture oocytes, they also deliver oocyte-secreted factors (OSFs) that activate receptors on CCs. We hypothesized that disturbance of those interactions contributes to age-related lower reproductive success in women submitted to assisted reproductive technology treatments. METHODS: Women aged 27-48, without recognized personal reproductive disorder, were enrolled in the study and divided in <35- and ≥35-year-old groups...
May 2, 2017: Journal of Assisted Reproduction and Genetics
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