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https://www.readbyqxmd.com/read/28635231/-comparison-of-paired-box-genes-8-and-2-expression-in-epithelium-tissues-and-the-related-tumors
#1
Y Song, X Huang, G H Shen, X Y Liu, X Zhang
Objective: To explore the expressional differences between paired box genes 2(Pax2) and 8 (Pax8) protein in different kinds of epitheliums and tumors, and to investigate the clinicopathologic significance. Methods: Expression levels of Pax2 and Pax8 protein were detected in 75 cases of different human epithelium tissues and 255 cases of different tumors on tissue microarray by immunohistochemistry. Results: Pax2 and Pax8 selectively expressed in different tissues. The positive rates of Pax8 protein expressed in the normal epithelium of the thyroid, urinary system and female reproductive system were 100% (2/2), 60...
June 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
https://www.readbyqxmd.com/read/28631711/-expansion-of-secretory-cells-in-the-fallopian-tubal-epithelium-in-the-early-stages-of-the-pathogenesis-of-ovarian-serous-carcinomas
#2
A V Asaturova, L S Ezhova, N M Faizullina, L V Adamyan, G N Khabas, M V Sannikova
AIM: to investigate the frequency of the types of fallopian tubal secretory cell expansion (SCE) in diseases of the reproductive organs and to determine the immunophenotype and biological role of the cells in the early stages of the pathogenesis of high-grade ovarian serous carcinomas (HGOSC). SUBJECTS AND METHODS: The investigation enrolled 287 patients with extraovarian diseases and ovarian serous tumors varying in grade, whose fallopian tubes were morphologically and immunohistochemically examined using p53, Ki-67, PAX2, Bcl-2, beta-catenin, and ALDH1 markers...
2017: Arkhiv Patologii
https://www.readbyqxmd.com/read/28615245/the-regulatory-1%C3%AE-subunit-of-protein-kinase-a-modulates-renal-cystogenesis
#3
Hong Ye, Xiaofang Wang, Megan M Constans, Caroline R Sussman, Fouad Chebib, Maria V Irazabal, William F Young, Peter C Harris, Lawrence S Kirschner, Vicente E Torres
The failure of the polycystins (PCs) to function in primary cilia is thought to be responsible for Autosomal Dominant Polycystic Kidney Disease (ADPKD). Primary cilia integrate multiple cellular signaling pathways, including calcium, cAMP, Wnt, and Hedgehog, which control cell proliferation and differentiation. It has been proposed that mutated PCs result in reduced intracellular calcium, which in turn upregulates cAMP, protein kinase A (PKA) signaling, and subsequently other proliferative signaling pathways...
June 14, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28603275/development-pax2-keeps-nephron-progenitors-on-track
#4
Andrea Aguilar
No abstract text is available yet for this article.
June 12, 2017: Nature Reviews. Nephrology
https://www.readbyqxmd.com/read/28600055/recurrent-female-adnexal-tumor-of-probably-wolffian-origin-a-case-report
#5
Tian Qiu, Yincheng Teng, Jianqian Tong, Wenqi Tao, Liang Xu
OBJECTIVE: Wolffian adnexal tumors (WATs) are rare, and metastasis is uncommon. We present the case of a 53-year-old female with a recurrent WAT. CASE REPORT: The patient presented with abdominal distension, and ultrasound revealed heterogeneous echoes (130 × 93 × 116 mm(3)) around the uterus and ascites. Her cancer antigen 125 (CA125) and CA19-9 levels were elevated. Hysterectomy, bilateral oophorectomy, and tumor resection were performed. The histopathological diagnosis was a WAT...
June 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28576690/complement-component-c3ar-constitutes-a-novel-regulator-for-chick-eye-morphogenesis
#6
Erika Grajales-Esquivel, Agustin Luz-Madrigal, Jeffrey Bierly, Tracy Haynes, Edimara S Reis, Zeyu Han, Christian Gutierrez, Zachary McKinney, Apostolia Tzekou, John D Lambris, Panagiotis A Tsonis, Katia Del Rio-Tsonis
Complement components have been implicated in a wide variety of functions including neurogenesis, proliferation, cell migration, differentiation, cancer, and more recently early development and regeneration. Following our initial observations indicating that C3a/C3aR signaling induces chick retina regeneration, we analyzed its role in chick eye morphogenesis. During eye development, the optic vesicle (OV) invaginates to generate a bilayer optic cup (OC) that gives rise to the retinal pigmented epithelium (RPE) and neural retina...
May 30, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28562601/multifunctional-glial-support-by-semper-cells-in-the-drosophila-retina
#7
Mark A Charlton-Perkins, Edward D Sendler, Elke K Buschbeck, Tiffany A Cook
Glial cells play structural and functional roles central to the formation, activity and integrity of neurons throughout the nervous system. In the retina of vertebrates, the high energetic demand of photoreceptors is sustained in part by Müller glia, an intrinsic, atypical radial glia with features common to many glial subtypes. Accessory and support glial cells also exist in invertebrates, but which cells play this function in the insect retina is largely undefined. Using cell-restricted transcriptome analysis, here we show that the ommatidial cone cells (aka Semper cells) in the Drosophila compound eye are enriched for glial regulators and effectors, including signature characteristics of the vertebrate visual system...
May 2017: PLoS Genetics
https://www.readbyqxmd.com/read/28535371/repression-of-interstitial-identity-in-nephron-progenitor-cells-by-pax2-establishes-the-nephron-interstitium-boundary-during-kidney-development
#8
Natalie Naiman, Kaoru Fujioka, Mari Fujino, M Todd Valerius, S Steven Potter, Andrew P McMahon, Akio Kobayashi
The kidney contains the functional units, the nephrons, surrounded by the renal interstitium. Previously we discovered that, once Six2-expressing nephron progenitor cells and Foxd1-expressing renal interstitial progenitor cells form at the onset of kidney development, descendant cells from these populations contribute exclusively to the main body of nephrons and renal interstitial tissues, respectively, indicating a lineage boundary between the nephron and renal interstitial compartments. Currently it is unclear how lineages are regulated during kidney organogenesis...
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28535367/pax2-a-keep-to-the-path-sign-on-waddington-s-epigenetic-landscape
#9
Jamie Davies
Developing kidneys have Foxd1(+) stromogenic stem cells and [Six2(+), Pax2(+)] nephrogenic stem cells. In this issue of Developmental Cell, Naiman et al. (2017) show that targeted Pax2 deletion converts nephrogenic cells to the stromogenic path, suggesting that Pax2 normally represses an otherwise inevitable transition between sister lineages.
May 22, 2017: Developmental Cell
https://www.readbyqxmd.com/read/28521150/the-effects-of-copper-oxide-nanoparticles-on-dorsoventral-patterning-convergent-extension-and-neural-and-cardiac-development-of-zebrafish
#10
Jia Xu, Qiuping Zhang, Xu Li, Sihui Zhan, Lifeng Wang, Dongyan Chen
Currently, nanoparticles are widely used in biomedicine and industry. CuO nanoparticles (CuO-NPs) are versatile materials in our daily life and their toxicity has drawn extensive attention. In this study, we concentrate on the effect of CuO-NPs on early zebrafish development. The results reveal that CuO-NPs can induce abnormal phenotypes of a smaller head and eyes and delayed epiboly. The gene expression pattern shows that CuO-NPs spatially narrow the expression of dorsal genes chordin and goosecoid and alter the expression of dlx3, ntl and hgg which are related to the cell migration of gastrulation...
May 4, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28450830/spiral-ganglion-neuron-projection-development-to-the-hindbrain-in-mice-lacking-peripheral-and-or-central-target-differentiation
#11
Karen L Elliott, Jennifer Kersigo, Ning Pan, Israt Jahan, Bernd Fritzsch
We investigate the importance of the degree of peripheral or central target differentiation for mouse auditory afferent navigation to the organ of Corti and auditory nuclei in three different mouse models: first, a mouse in which the differentiation of hair cells, but not central auditory nuclei neurons is compromised (Atoh1-cre; Atoh1(f/f) ); second, a mouse in which hair cell defects are combined with a delayed defect in central auditory nuclei neurons (Pax2-cre; Atoh1(f/f) ), and third, a mouse in which both hair cells and central auditory nuclei are absent (Atoh1(-/-))...
2017: Frontiers in Neural Circuits
https://www.readbyqxmd.com/read/28427856/frizzled-3-acts-upstream-of-alcam-during-embryonic-eye-development
#12
Franziska A Seigfried, Wiebke Cizelsky, Astrid S Pfister, Petra Dietmann, Paul Walther, Michael Kühl, Susanne J Kühl
Formation of a functional eye during vertebrate embryogenesis requires different processes such as cell differentiation, cell migration, cell-cell interactions as well as intracellular signalling processes. It was previously shown that the non-canonical Wnt receptor Frizzled 3 (Fzd3) is required for proper eye formation, however, the underlying mechanism is poorly understood. Here we demonstrate that loss of Fzd3 induces severe malformations of the developing eye and that this defect is phenocopied by loss of the activated leukocyte cell adhesion molecule (Alcam)...
April 17, 2017: Developmental Biology
https://www.readbyqxmd.com/read/28426529/diagnostic-utility-of-pax8-pax2-and-ngfr-immunohistochemical-expression-in-pediatric-renal-tumors
#13
Nicoleta C Arva, Jeffrey Bonadio, Elizabeth J Perlman, Mariana M Cajaiba
Pediatric renal tumors (PRT) with small round blue or spindle cell morphology can be diagnostically challenging and only a limited number of immunohistochemical markers have been documented to help in the diagnosis: paired box (Pax) 2 and nerve growth factor receptor (NGFR) positivity have been demonstrated in Wilms tumor (WT) and clear cell sarcoma of the kidney (CCSK), respectively. However, the immunohistochemical expression of these markers in other PRT remains unknown. This study investigated Pax8, Pax2, and NGFR immunophenotype in a large series of PRT...
April 19, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28412963/posttranslationally-modified-progesterone-receptors-direct-ligand-specific-expression-of-breast-cancer-stem-cell-associated-gene-programs
#14
Todd P Knutson, Thu H Truong, Shihong Ma, Nicholas J Brady, Megan E Sullivan, Ganesh Raj, Kathryn L Schwertfeger, Carol A Lange
BACKGROUND: Estrogen and progesterone are potent breast mitogens. In addition to steroid hormones, multiple signaling pathways input to estrogen receptor (ER) and progesterone receptor (PR) actions via posttranslational events. Protein kinases commonly activated in breast cancers phosphorylate steroid hormone receptors (SRs) and profoundly impact their activities. METHODS: To better understand the role of modified PRs in breast cancer, we measured total and phospho-Ser294 PRs in 209 human breast tumors represented on 2754 individual tissue spots within a tissue microarray and assayed the regulation of this site in human tumor explants cultured ex vivo...
April 17, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28315934/gas1-expression-in-parietal-cells-of-bowman-s-capsule-in-experimental-diabetic-nephropathy
#15
Brenda I Luna-Antonio, Rafael Rodriguez-Muñoz, Carmen Namorado-Tonix, Paula Vergara, Jose Segovia, Jose L Reyes
Gas1 (Growth Arrest-Specific 1) is a pleiotropic protein with novel functions including anti-proliferative and proapoptotic activities. In the kidney, the expression of Gas1 has been described in mesangial cells. In this study, we described that renal parietal cells of Bowman's capsule (BC) and the distal nephron cells also express Gas1. The role of Gas1 in the kidney is not yet known. There is a subpopulation of progenitor cells in Bowman's capsule with self-renewal properties which can eventually differentiate into podocytes as a possible mechanism of regeneration in the early stages of diabetic nephropathy...
March 18, 2017: Histochemistry and Cell Biology
https://www.readbyqxmd.com/read/28302062/ancestral-and-novel-roles-of-pax-family-genes-in-mollusks
#16
Maik Scherholz, Emanuel Redl, Tim Wollesen, André Luiz de Oliveira, Christiane Todt, Andreas Wanninger
BACKGROUND: Pax genes are transcription factors with significant roles in cell fate specification and tissue differentiation during animal ontogeny. Most information on their tempo-spatial mode of expression is available from well-studied model organisms where the Pax-subfamilies Pax2/5/8, Pax6, and Paxα/β are mainly involved in the development of the central nervous system (CNS), the eyes, and other sensory organs. In certain taxa, Pax2/5/8 seems to be additionally involved in the development of excretion organs...
March 16, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28253300/the-pax-gene-family-highlights-from-cephalopods
#17
Sandra Navet, Auxane Buresi, Sébastien Baratte, Aude Andouche, Laure Bonnaud-Ponticelli, Yann Bassaglia
Pax genes play important roles in Metazoan development. Their evolution has been extensively studied but Lophotrochozoa are usually omitted. We addressed the question of Pax paralog diversity in Lophotrochozoa by a thorough review of available databases. The existence of six Pax families (Pax1/9, Pax2/5/8, Pax3/7, Pax4/6, Paxβ, PoxNeuro) was confirmed and the lophotrochozoan Paxβ subfamily was further characterized. Contrary to the pattern reported in chordates, the Pax2/5/8 family is devoid of homeodomain in Lophotrochozoa...
2017: PloS One
https://www.readbyqxmd.com/read/28160066/pax2-pax8-defined-subdomains-and-the-occurrence-of-apoptosis-in-the-posterior-placodal-area-of-mice
#18
Stefan Washausen, Wolfgang Knabe
The present work aims to improve our understanding of the causes and functions of apoptosis during the morphogenesis of epibranchial placodes in mice. Schematic maps helped to compare the spatiotemporal sequence of apoptotic events with the protein expression patterns of general (Six1) and specific placodal markers (Pax2, Pax8). Our findings challenge the view that, in mammals, all three epibranchial placodes spring from the original posterior placodal area (PPA) of presomite or early somite embryos. Instead, close-meshed analysis of the Pax2/Pax8 expression patterns demonstrates the stepwise emergence of two subdomains which both belong to the gradually expanding PPA, and which largely give rise to the otic placode and epibranchial placode 1 (anterior subdomain), or to the caudal epibranchial placodes (posterior subdomain)...
February 3, 2017: Brain Structure & Function
https://www.readbyqxmd.com/read/28105130/biological-characterization-of-sheep-kidney-derived-mesenchymal-stem-cells
#19
Meng Ji, Chunyu Bai, Lu Li, Ya'Nan Fan, Caiyun Ma, Xiangchen Li, Weijun Guan
The aim of the present study was to isolate, culture and characterize sheep metanephric mesenchymal stem cells (MMSCs). The MMSCs were isolated from the kidney tissue of six-week-old sheep fetus. This study investigated whether primary MMSCs could be grown for 26 passages and expressed Oct-4, which is involved in the self-renewal of undifferentiated pluripotent stem cells. The MMSCs also expressed the renal lineage marker gene PAX2, and mesenchymal cell marker genes CD44, FN1 and VIM. Expression of these genes was detected using immunofluorescence and reverse transcription-polymerase chain reaction assays...
December 2016: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28094913/inhibition-of-pax2-transcription-activation-with-a-small-molecule-that-targets-the-dna-binding-domain
#20
Edward Grimley, Chenzhong Liao, Egon J Ranghini, Zaneta Nikolovska-Coleska, Gregory R Dressler
The Pax gene family encodes DNA binding transcription factors that control critical steps in embryonic development and differentiation of specific cell lineages. Often, Pax proteins are re-expressed or ectopically expressed in cancer and other diseases of abnormal proliferation, making them attractive targets for tissue specific inhibition by small molecules. In this report, we used a homology model of the Pax2 paired domain and a virtual screen to identify small molecules that can inhibit binding of the paired domain to DNA and Pax2 mediated transcription activation...
January 24, 2017: ACS Chemical Biology
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