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https://www.readbyqxmd.com/read/28432464/insights-into-autosomal-dominant-polycystic-kidney-disease-by-quantitative-mass-spectrometry-based-proteomics
#1
REVIEW
Britta Diedrich, Jörn Dengjel
Autosomal dominant polycystic kidney disease (ADPKD) is a common monogenetic disorder that is caused by mutations in the genes PKD1 and PKD2 encoding polycystin-1 and polycystin-2, respectively. Polycystin-1 and -2 form a complex, interact with several proteins involved in signal transduction and localize to discrete subcellular positions, most importantly the primary cilium. Whereas the causative mutations leading to ADPKD are known, the underlying deregulated cellular pathways are not well understood. In the current review, we introduce state-of-the-art mass spectrometry (MS)-based proteomic techniques and summarize their use in kidney and ADPKD research...
April 21, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28428613/differential-regulation-of-pkd-isoforms-in-oxidative-stress-conditions-through-phosphorylation-of-a-conserved-tyr-in-the-p-1-loop
#2
Mathias Cobbaut, Rita Derua, Heike Döppler, Hua Jane Lou, Sandy Vandoninck, Peter Storz, Benjamin E Turk, Thomas Seufferlein, Etienne Waelkens, Veerle Janssens, Johan Van Lint
Protein kinases are essential molecules in life and their crucial function requires tight regulation. Many kinases are regulated via phosphorylation within their activation loop. This loop is embedded in the activation segment, which additionally contains the Mg(2+) binding loop and a P + 1 loop that is important in substrate binding. In this report, we identify Abl-mediated phosphorylation of a highly conserved Tyr residue in the P + 1 loop of protein kinase D2 (PKD2) during oxidative stress. Remarkably, we observed that the three human PKD isoforms display very different degrees of P + 1 loop Tyr phosphorylation and we identify one of the molecular determinants for this divergence...
April 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28408623/protein-kinase-d1-pkd1-phosphorylation-on-ser-203-by-type-i-p21-activated-kinase-pak-regulates-pkd1-localization
#3
Jen-Kuan Chang, Yang Ni, Liang Han, James Sinnett-Smith, Rodrigo Jacamo, Osvaldo Rey, Steven H Young, Enrique Rozengurt
While PKC-mediated phosphorylation of protein kinase D1 (PKD1) has been extensively characterized, little is known about PKD1 regulation by other upstream kinases. Here, we report that stimulation of epithelial or fibroblastic cells with G protein-coupled receptor (GPCR) agonists, including angiotensin II or bombesin induced rapid and persistent PKD1 phosphorylation at Ser(203), a highly conserved residue located within the PKD1 N-terminal domain. Exposure to PKD or PKC family inhibitors did not prevent PKD1 phosphorylation at Ser(203), indicating that it is not mediated by autophosphorylation...
April 13, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28378423/detecting-pkd1-variants-in-polycystic-kidney-disease-patients-by-single-molecule-long-read-sequencing
#4
Daniel M Borràs, Rolf Vossen, Michael Liem, Henk P J Buermans, Hans Dauwerse, Dave van Heusden, Ron T Gansevoort, Johan T den Dunnen, Bart Janssen, Dorien J M Peters, Monique Losekoot, Seyed Yahya Anvar
A genetic diagnosis of autosomal dominant polycystic kidney disease (ADPKD) is challenging due to allelic heterogeneity, high GC-content, and homology of the PKD1 gene with six pseudogenes. Short-read next-generation sequencing (NGS) approaches, such as whole genome (WGS) and whole exome sequencing (WES), often fail at reliably characterizing complex regions such as PKD1. However, long-read single-molecule sequencing has been shown to be an alternative strategy that could overcome PKD1 complexities and discriminate between homologous regions of PKD1 and its pseudogenes...
April 4, 2017: Human Mutation
https://www.readbyqxmd.com/read/28378126/global-transcriptomic-analysis-of-induced-cardiomyocytes-predicts-novel-regulators-for-direct-cardiac-reprogramming
#5
Mahmood Talkhabi, Seyed Morteza Razavi, Ali Salari
Heart diseases are the most significant cause of morbidity and mortality in the world. De novo generated cardiomyocytes (CMs) are a great cellular source for cell-based therapy and other potential applications. Direct cardiac reprogramming is the newest method to produce CMs, known as induced cardiomyocytes (iCMs). During a direct cardiac reprogramming, also known as transdifferentiation, non-cardiac differentiated adult cells are reprogrammed to cardiac identity by forced expression of cardiac-specific transcription factors (TFs) or microRNAs...
April 4, 2017: Journal of Cell Communication and Signaling
https://www.readbyqxmd.com/read/28376279/molecular-mechanisms-underlying-protective-effects-of-quercetin-against-mitochondrial-dysfunction-and-progressive-dopaminergic-neurodegeneration-in-cell-culture-and-mitopark-transgenic-mouse-models-of-parkinson-s-disease
#6
Muhammet Ay, Jie Luo, Monica Langley, Huajun Jin, Vellareddy Anantharam, Arthi Kanthasamy, Anumantha G Kanthasamy
Quercetin, one of the major flavonoids in plants, has been recently reported to have neuroprotective effects against neurodegenerative processes. However, since the molecular signaling mechanisms governing these effects are not well clarified, we evaluated quercetin's effect on the neuroprotective signaling events in dopaminergic neuronal models and further tested its efficacy in the MitoPark transgenic mouse model of Parkinson's disease (PD). Western blotting analysis revealed that quercetin significantly induced the activation of two major cell survival kinases, protein kinase D1 (PKD1) and Akt in MN9D dopaminergic neuronal cells...
April 4, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28361035/mitochondrial-and-oxidative-stress-mediated-activation-of-protein-kinase-d1-and-its-importance-in-pancreatic-cancer
#7
REVIEW
Heike Döppler, Peter Storz
Due to alterations in their metabolic activity and decreased mitochondrial efficiency, cancer cells often show increased generation of reactive oxygen species (ROS), but at the same time, to avoid cytotoxic signaling and to facilitate tumorigenic signaling, have mechanism in place that keep ROS in check. This requires signaling molecules that convey increases in oxidative stress to signal to the nucleus to upregulate antioxidant genes. Protein kinase D1 (PKD1), the serine/threonine kinase, is one of these ROS sensors...
2017: Frontiers in Oncology
https://www.readbyqxmd.com/read/28356211/pkd2-related-autosomal-dominant-polycystic-kidney-disease-prevalence-clinical-presentation-mutation-spectrum-and%C3%A2-prognosis
#8
Emilie Cornec-Le Gall, Marie-Pierre Audrézet, Eric Renaudineau, Maryvonne Hourmant, Christophe Charasse, Eric Michez, Thierry Frouget, Cécile Vigneau, Jacques Dantal, Pascale Siohan, Hélène Longuet, Philippe Gatault, Laure Ecotière, Frank Bridoux, Lise Mandart, Catherine Hanrotel-Saliou, Corina Stanescu, Pascale Depraetre, Sophie Gie, Michiel Massad, Aude Kersalé, Guillaume Séret, Jean-François Augusto, Philippe Saliou, Sandrine Maestri, Jian-Min Chen, Peter C Harris, Claude Férec, Yannick Le Meur
BACKGROUND: PKD2-related autosomal dominant polycystic kidney disease (ADPKD) is widely acknowledged to be of milder severity than PKD1-related disease, but population-based studies depicting the exact burden of the disease are lacking. We aimed to revisit PKD2 prevalence, clinical presentation, mutation spectrum, and prognosis through the Genkyst cohort. STUDY DESIGN: Case series, January 2010 to March 2016. SETTINGS & PARTICIPANTS: Genkyst study participants are individuals older than 18 years from 22 nephrology centers from western France with a diagnosis of ADPKD based on Pei criteria or at least 10 bilateral kidney cysts in the absence of a familial history...
March 26, 2017: American Journal of Kidney Diseases: the Official Journal of the National Kidney Foundation
https://www.readbyqxmd.com/read/28341273/branched-chain-amino-acids-enhance-cyst-development-in-autosomal-dominant-polycystic-kidney-disease
#9
Junya Yamamoto, Saori Nishio, Fumihiko Hattanda, Daigo Nakazawa, Toru Kimura, Michio Sata, Minoru Makita, Yasunobu Ishikawa, Tatsuya Atsumi
Autosomal dominant polycystic kidney disease (ADPKD) is characterized by the progressive development of kidney and liver cysts. The mammalian target of rapamycin (mTOR) cascade is one of the important pathways regulating cyst growth in ADPKD. Branched-chain amino acids (BCAAs), including leucine, play a crucial role to activate mTOR pathway. Therefore, we administered BCAA dissolved in the drinking water to Pkd1(flox/flox):Mx1-Cre (cystic) mice from four to 22 weeks of age after polyinosinic-polycytidylic acid-induced conditional Pkd1 knockout at two weeks of age...
March 21, 2017: Kidney International
https://www.readbyqxmd.com/read/28341240/overexpression-of-exogenous-kidney-specific-ngal-attenuates-progressive-cyst-development-and-prolongs-lifespan-in-a-murine-model-of-polycystic-kidney-disease
#10
Ellian Wang, Yuan-Yow Chiou, Wen-Yih Jeng, Hsiu-Kuan Lin, Hsi-Hui Lin, Hsian-Jean Chin, Chi-Kuang Leo Wang, Shang-Shiuan Yu, Shih-Chieh Tsai, Chih-Ying Chiang, Po-Hao Cheng, Hong-Jie Lin, Si-Tse Jiang, Sou-Tyau Chiu, Hsiu Mei Hsieh-Li
Neutrophil gelatinase-associated lipocalin (Ngal) is a biomarker for acute and chronic renal injuries, including polycystic kidney disease (PKD). However, the effect of Ngal on PKD progression remains unexplored. To study this, we generated 3 strains of mice with different expression levels of Ngal within an established PKD model (Pkd1(L3/L3)): Pkd1(L3/L3) (with endogenous Ngal), Pkd1(L3/L3); Ngal(Tg/Tg) (with endogenous and overexpression of exogenous kidney-specific Ngal) and Pkd1(L3/L3); Ngal(-/-) mice (with Ngal deficiency)...
February 2017: Kidney International
https://www.readbyqxmd.com/read/28320755/ciliary-mechanisms-of-cyst-formation-in-polycystic-kidney-disease
#11
Ming Ma, Anna-Rachel Gallagher, Stefan Somlo
Autosomal-dominant polycystic kidney disease (ADPKD) is a disease of defective tissue homeostasis resulting in active remodeling of nephrons and bile ducts to form fluid-filled sacs called cysts. The causal genes PKD1 and PKD2 encode transmembrane proteins polycystin 1 (PC1) and polycystin 2 (PC2), respectively. Together, the polycystins localize to the solitary primary cilium that protrudes from the apical surface of most kidney tubule cells and is thought to function as a privileged compartment that the cell uses for signal integration of sensory inputs...
March 20, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28271061/identification-and-expression-analysis-of-the-complete-family-of-zebrafish-pkd-genes
#12
Samantha J England, Paul C Campbell, Santanu Banerjee, Annika J Swanson, Katharine E Lewis
Polycystic kidney disease (PKD) proteins are trans-membrane proteins that have crucial roles in many aspects of vertebrate development and physiology, including the development of many organs as well as left-right patterning and taste. They can be divided into structurally-distinct PKD1-like and PKD2-like proteins and usually one PKD1-like protein forms a heteromeric polycystin complex with a PKD2-like protein. For example, PKD1 forms a complex with PKD2 and mutations in either of these proteins cause Autosomal Dominant Polycystic Kidney Disease (ADPKD), which is the most frequent potentially-lethal single-gene disorder in humans...
2017: Frontiers in Cell and Developmental Biology
https://www.readbyqxmd.com/read/28237043/tuberous-sclerosis-complex-and-polycystic-kidney-disease-contiguous-gene-syndrome-with-moyamoya-disease
#13
Jonathan Lai, Lopa Modi, Daryl Ramai, Matthew Tortora
Tuberous sclerosis complex (TSC) and autosomal dominant polycystic kidney disease (ADPKD) are two diseases sharing close genetic loci on chromosome 16. Due to contiguous gene syndrome, also known as contiguous gene deletion syndrome, the proximity of TSC2 and PKD1 genes increases the risk of co-deletion resulting in a shared clinical presentation. Furthermore, Moyamoya disease (MMD) is a rare vaso-occlusive disease in the circle of Willis. We present the first case of TSC2/PKD1 contiguous gene syndrome in a patient with MMD along with detailed histopathologic, radiologic, and cytogenetic analyses...
April 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28228588/investigation-of-the-role-of-protein-kinase-d-in-human-rhinovirus-replication
#14
Anabel Guedán, Dawid Swieboda, Mark Charles, Marie Toussaint, Sebastian L Johnston, Amin Asfor, Anusha Panjwani, Tobias J Tuthill, Henry Danahay, Tony Raynham, Aurelie Mousnier, Roberto Solari
Picornavirus replication is known to cause extensive remodelling of Golgi and endoplasmic reticulum membranes and a number of the host proteins involved in the viral replication complex have been identified, including oxysterol binding protein (OSBP) and phosphatidylinositol 4-kinase III beta (PI4KB). Since both OSBP and PI4KB are substrates for protein kinase D (PKD) and PKD is known to be involved in the control of Golgi vesicular and lipid transport, we hypothesised that PKD played a role in viral replication...
February 22, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28168444/fluid-shear-stress-induced-tgf-%C3%AE-alk5-signaling-in-renal-epithelial-cells-is-modulated-by-mek1-2
#15
Steven J Kunnen, Wouter N Leonhard, Cor Semeins, Lukas J A C Hawinkels, Christian Poelma, Peter Ten Dijke, Astrid Bakker, Beerend P Hierck, Dorien J M Peters
Renal tubular epithelial cells are exposed to mechanical forces due to fluid flow shear stress within the lumen of the nephron. These cells respond by activation of mechano-sensors located at the plasma membrane or the primary cilium, having crucial roles in maintenance of cellular homeostasis and signaling. In this paper, we applied fluid shear stress to study TGF-β signaling in renal epithelial cells with and without expression of the Pkd1-gene, encoding a mechano-sensor mutated in polycystic kidney disease...
February 6, 2017: Cellular and Molecular Life Sciences: CMLS
https://www.readbyqxmd.com/read/28154010/extracellular-loops-are-essential-for-the-assembly-and-function-of-polycystin-receptor-ion-channel-complexes
#16
Zahra Salehi-Najafabadi, Bin Li, Victoria Valentino, Courtney Ng, Hannah Martin, Yang Yu, Zhifei Wang, Parul Kashyap, Yong Yu
Polycystin complexes, or TRPP-PKD complexes, made of transient receptor potential channel polycystin (TRPP) and polycystic kidney disease (PKD) proteins, play key roles in coupling extracellular stimuli with intracellular Ca(2+) signals. For example, the TRPP2-PKD1 complex has a crucial function in renal physiology, with mutations in either protein causing autosomal dominant polycystic kidney disease. In contrast, the TRPP3-PKD1L3 complex responds to low pH and was proposed to be a sour taste receptor candidate...
March 10, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28148532/meta-analysis-of-polycystic-kidney-disease-expression-profiles-defines-strong-involvement-of-injury-repair-processes
#17
Tareq B Malas, Chiara Formica, Wouter N Leonhard, Pooja Rao, Zoraide Granchi, Marco Roos, Dorien J M Peters, Peter A C 't Hoen
Polycystic Kidney Disease is a major cause of end-stage renal disease. The disease mechanisms are not well understood and the pathogenesis towards renal failure remains elusive. In this study, we present the first RNASeq analysis of a Pkd1-mutant mouse model in a combined meta-analysis with other published PKD expression profiles. We introduce the PKD signature, a set of 1515 genes that are commonly dysregulated in PKD studies. We show that the signature genes include many known and novel PKD-related genes and functions...
February 1, 2017: American Journal of Physiology. Renal Physiology
https://www.readbyqxmd.com/read/28104302/stat5-drives-abnormal-proliferation-in-autosomal-dominant-polycystic-kidney-disease
#18
Maria Fragiadaki, Morgane Lannoy, Madeleine Themanns, Barbara Maurer, Wouter N Leonhard, Dorien J M Peters, Richard Moriggl, Albert C M Ong
Autosomal dominant polycystic kidney disease (ADPKD) leads to renal failure. The hallmark of ADPKD is increased epithelial proliferation, which has been proposed to be due to atypical signaling including abnormal JAK-STAT activity. However, the relative contribution of JAK-STAT family members in promoting proliferation in ADPKD is unknown. Here, we present siRNA JAK-STAT-focused screens discovering a previously unknown proliferative role for multiple JAK-STAT components (including STAT1, STAT2, STAT4, STAT5a, and STAT5b)...
January 16, 2017: Kidney International
https://www.readbyqxmd.com/read/28078622/evidence-that-polycystins-are-involved-in-hydra-cnidocyte-discharge
#19
Susan McLaughlin
Like other cnidarians, the freshwater organism Hydra is characterized by the possession of cnidocytes (stinging cells). Most cnidocytes are located on hydra tentacles, where they are organized along with sensory cells and ganglion cells into battery complexes. The function of the battery complexes is to integrate multiple types of stimuli for the regulation of cnidocyte discharge. The molecular mechanisms controlling the discharge of cnidocytes are not yet fully understood, but it is known that discharge depends on extracellular Ca(2+) and that mechanically induced cnidocyte discharge can be enhanced by the presence of prey extracts and other chemicals...
March 2017: Invertebrate Neuroscience: IN
https://www.readbyqxmd.com/read/28077787/androgen-suppresses-protein-kinase-d1-expression-through-fibroblast-growth-factor-receptor-substrate-2-in-prostate-cancer-cells
#20
Liyong Zhang, Zhenlong Zhao, Shuping Xu, Manuj Tandon, Courtney R LaValle, Fan Deng, Q Jane Wang
In prostate cancer, androgen/androgen receptor (AR) and their downstream targets play key roles in all stages of disease progression. The protein kinase D (PKD) family, particularly PKD1, has been implicated in prostate cancer biology. Here, we examined the cross-regulation of PKD1 by androgen signaling in prostate cancer cells. Our data showed that the transcription of PKD1 was repressed by androgen in androgen-sensitive prostate cancer cells. Steroid depletion caused up regulation of PKD1 transcript and protein, an effect that was reversed by the AR agonist R1881 in a time- and concentration-dependent manner, thus identifying PKD1 as a novel androgen-repressed gene...
February 21, 2017: Oncotarget
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