keyword
MENU ▼
Read by QxMD icon Read
search

Tubule epithelial cell

keyword
https://www.readbyqxmd.com/read/29218530/tracking-glut2-translocation-by-live-cell-imaging
#1
Sabina Tsytkin-Kirschenzweig, Merav Cohen, Yaakov Nahmias
The facilitative glucose transporter (GLUT) family plays a key role in metabolic homeostasis, controlling the absorption rates and rapid response to changing carbohydrate levels. The facilitative GLUT2 transporter is uniquely expressed in metabolic epithelial cells of the intestine, pancreas, liver, and kidney. GLUT2 dysfunction is associated with several pathologies, including Fanconi-Bickel syndrome, a glycogen storage disease, characterized by growth retardation and renal dysfunction. Interestingly, GLUT2 activity is modulated by its cellular localization...
2018: Methods in Molecular Biology
https://www.readbyqxmd.com/read/29217627/the-gastric-caecum-of-larval-aedes-aegypti-stimulation-of-epithelial-ion-transport-by-5-hydroxytryptamine-and-camp
#2
Natalie M D'Silva, Michael J O'Donnell
We report measurements of ion transport across the gastric caecum of larvae of Aedes aegypti, a vector of yellow fever that inhabits a variety of aquatic habitats ranging from freshwater to brackish water. We provide the first measurements of the effect of 5-hydroxytryptamine (5-HT) on transepithelial potential (TEP), luminal ion concentrations and electrochemical potentials, as well as basolateral membrane potential and H+, Na+ and K+ fluxes. TEP, basolateral membrane potential, and H+, K+, and Na+ fluxes across the gastric caeca declined within 3-6 mins after isolation of the entire midgut from the larva...
December 7, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/29208685/nonmuscle-myosin-2-proteins-encoded-by-myh9-myh10-and-myh14-are-uniquely-distributed-in-the-tubular-segments-of-murine-kidney
#3
Karla L Otterpohl, Ryan G Hart, Claire Evans, Kameswaran Surendran, Indra Chandrasekar
The diverse epithelial cell types of the kidneys are segregated into nephron segments and the collecting ducts in order to endow each tubular segment with unique functions. The rich diversity of the epithelial cell types is highlighted by the unique membrane channels and receptors expressed within each nephron segment. Our previous work identified a critical role for Myh9 and Myh10 in mammalian endocytosis. Here, we examined the expression patterns of Nonmuscle myosin 2 (NM2) heavy chains encoded by Myh9, Myh10, and Myh14 in mouse kidneys as these genes may confer unique nephron segment-specific membrane transport properties...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29207627/orellanine-specifically-targets-renal-clear-cell-carcinoma
#4
Lisa Buvall, Heidi Hedman, Alina Khramova, Deman Najar, Lovisa Bergwall, Kerstin Ebefors, Carina Sihlbom, Sven Lundstam, Anders Herrmann, Hanna Wallentin, Emelie Roos, Ulf A Nilsson, Martin Johansson, Jan Törnell, Börje Haraldsson, Jenny Nyström
Renal cell carcinoma (RCC), arising from the proximal tubule in the kidney, accounts for approximately 85% of kidney cancers and causes over 140,000 annual deaths worldwide. In the last decade, several new therapies have been identified for treatment of metastatic RCC. Although these therapies increase survival time compared to standard care, none of them has curative properties. The nephrotoxin orellanine specifically targets proximal tubular epithelial cells, leaving other organs unaffected. We therefore hypothesized that the selective toxicity of orellanine extends to clear cell RCC (ccRCC) cells since they emanate from proximal tubular cells...
October 31, 2017: Oncotarget
https://www.readbyqxmd.com/read/29199178/carbonic-anhydrase-2-like-in-the-giant-clam-tridacna-squamosa-characterization-localization-response-to-light-and-possible-role-in-the-transport-of-inorganic-carbon-from-the-host-to-its-symbionts
#5
Yuen K Ip, Clarissa Z Y Koh, Kum C Hiong, Celine Y L Choo, Mel V Boo, Wai P Wong, Mei L Neo, Shit F Chew
The fluted giant clam, Tridacna squamosa, lives in symbiosis with zooxanthellae which reside extracellularly inside a tubular system. Zooxanthellae fix inorganic carbon (Ci) during insolation and donate photosynthate to the host. Carbonic anhydrases catalyze the interconversion of CO2 and HCO3-, of which carbonic anhydrase 2 (CA2) is the most ubiquitous and involved in many biological processes. This study aimed to clone a CA2 homolog (CA2-like) from the fleshy and colorful outer mantle as well as the thin and whitish inner mantle of T...
December 2017: Physiological Reports
https://www.readbyqxmd.com/read/29198839/sox9-activation-is-involved-in-tubule-repair-after-unilateral-partial-nephrectomy
#6
Qiwang Ma, Yujia Wang, Wei Zuo
AIMS: Tubule repair has been noticed after kidney tissue damage, however the cellular mechanism behind remains unclear. Here we successfully constructed a mouse unilateral partial nephrectomy model mimicking renal carcinoma surgery, and further investigated whether this procedure triggered regenerative action. MAIN METHODS: We used the unilateral partial nephrectomy model to study kidney repair. Kidney function after nephrectomy was measured using creatinine and urea nitrogen assay kit...
November 30, 2017: Life Sciences
https://www.readbyqxmd.com/read/29192229/seasonal-expression-of-oxytocin-and-oxytocin-receptor-in-the-scented-gland-of-male-muskrat-ondatra-zibethicus
#7
Fengwei Zhang, Qian Liu, Ziyi Wang, Wenqian Xie, Xia Sheng, Haolin Zhang, Zhengrong Yuan, Yingying Han, Qiang Weng
Oxytocin (OT) can modulate multiple physiological functions via binding to the widely distributed oxytocin receptor (OTR). In this study, we investigated the seasonal expressions of OT, OTR and extracellular signal regulated kinase (ERK1/2) signaling pathway components in the scented gland of muskrat during the breeding and non-breeding seasons. Histologically, glandular cells, interstitial cells and excretory tubules were identified in the breeding season scented glands, whereas epithelial cells were sparse in the non-breeding season...
November 30, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29187366/cell-confluence-regulates-claudin-2-expression-possible-role-for-zo-1-and-rac
#8
Yasaman Amoozadeh, Shaista Anwer, Qinghong Dan, Shruthi Venugopal, Yixuan Shi, Emily Branchard, Elisabeth Liedtke, Menachem Ailenberg, Ori D Rotstein, Andras Kapus, Katalin Szaszi
Claudin-2 (Cldn-2) is a channel-forming tight junction (TJ) protein in the proximal tubules that mediates paracellular Na+ transport and has also emerged as a regulator of proliferation and migration. Expression of Cldn-2 is altered by numerous stimuli, but the underlying mechanisms remain incompletely understood. Here we show that Cldn-2 protein and mRNA expression were low in sub-confluent tubular cells and increased during junction maturation. Cldn-1 or occludin did not exhibit similar confluence-dependence...
November 29, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/29186931/mixture-toxicity-of-bensulfuron-methyl-and-acetochlor-to-red-swamp-crayfish-procambarus-clarkii-behavioral-morphological-and-histological-effects
#9
Jixin Yu, Elvis Genbo Xu, Yan Ren, Shiyu Jin, Tanglin Zhang, Jiashou Liu, Zhongjie Li
The mixture of bensulfuron-methyl and acetochlor (MBA) has been widely applied as a rice herbicide in China, but the mixture toxicity of MBA to aquatic organisms is largely unknown. The current study aims to investigate the acute effects of MBA to juvenile red swamp crayfish, Procambarus clarkii. Firstly, a 96 h semi-static exposure was conducted to determine the Lethal Concentration 50 (LC50) values at 24, 48, 72 and 96 h, as well as to assess the behavioral and morphological effects. A second 96 h exposure was conducted at an MBA concentration of 50% of the 96 h LC50 (72...
November 27, 2017: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29186865/role-of-vitamin-d-in-maintaining-renal-epithelial-barrier-function-in-uremic-conditions
#10
Milos Mihajlovic, Michele Fedecostante, Miriam J Oost, Sonja K P Steenhuis, Eef G W M Lentjes, Inge Maitimu-Smeele, Manoe J Janssen, Luuk B Hilbrands, Rosalinde Masereeuw
As current kidney replacement therapies are not efficient enough for end-stage renal disease (ESRD) treatment, a bioartificial kidney (BAK) device, based on conditionally immortalized human proximal tubule epithelial cells (ciPTEC), could represent an attractive solution. The active transport activity of such a system was recently demonstrated. In addition, endocrine functions of the cells, such as vitamin D activation, are relevant. The organic anion transporter 1 (OAT-1) overexpressing ciPTEC line presented 1α-hydroxylase (CYP27B1), 24-hydroxylase (CYP24A1) and vitamin D receptor (VDR), responsible for vitamin D activation, degradation and function, respectively...
November 26, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29185789/integrated-treatment-of-prostaglandin-e1-and-angiotensin-converting-enzyme-inhibitor-in-diabetic-kidney-disease-rats-possible-role-of-antiapoptosis-in-renal-tubular-epithelial-cells
#11
Yaru Mou, Yaqin Zhang, Congcong Guo, Junyu Zhao, Zhongwen Zhang, Xiaojun Zhou, Jianjun Dong, Lin Liao
To investigate the therapeutic mechanisms underlying prostaglandin E1 (PGE1) and angiotensin-converting enzyme inhibitor (ACEI) on reducing urinary protein in diabetic kidney disease (DKD). DKD rats were established and randomly divided into four groups: PGE1 (10 μg/kg/day) (P group), ACEI (10 mg/kg/day) (A group), combination of PGE1 with ACEI treatment (P + A group), and saline treatment group (DKD group). Untreated rats were used as normal control (N group). Urinary albumin, endothelin-1 (ET-1), angiotensin II (AngII), TUNEL assay, Masson's trichrome staining, and immunohistochemistry staining for CD68 were evaluated in all groups...
November 29, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/29180450/knockout-of-mitochondrial-voltage-dependent-anion-channel-type-3-increases-reactive-oxygen-species-ros-levels-and-alters-renal-sodium-transport
#12
Li Zou, Valerie Linck, Yu-Jia Zhai, Laura Galarza-Paez, Linda Li, Qiang Yue, Otor Al-Khalili, Hui-Fang Bao, He-Ping Ma, Tiffany L Thai, Jundong Jiao, Douglas C Eaton
It has been suggested that voltage-dependent anion channels (VDACs) control the release of superoxide from mitochondria. We have previously shown that reactive oxygen species (ROS) such as superoxide (O2-) and hydrogen peroxide (H2O2) stimulate epithelial sodium channels (ENaCs) in sodium-transporting epithelial tissue including cortical collecting duct (CCD) principal cells. Therefore, we hypothesized that VDACs could regulate ENaC by modulating cytosolic ROS levels. Herein, we find that VDAC3-knockout(KO) mice can maintain normal salt and water balance on low-salt and high-salt diets...
November 27, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/29175835/paediatric-ovarian-tumours-and-their-associated-cancer-susceptibility-syndromes
#13
REVIEW
Catherine Goudie, Leora Witkowski, Stephanie Vairy, W Glenn McCluggage, William D Foulkes
Non-epithelial ovarian tumours are rare neoplasms that occasionally arise in childhood and adolescence. They can be associated with various cancer susceptibility syndromes. The morphological overlap seen across these tumours and their rarity can make the diagnosis challenging. In the case of an incorrect diagnosis, the underlying genetic susceptibility may be missed. In this review, we outline the genetic background of ovarian non-epithelial tumours arising in children, emphasizing the genes harbouring pathogenic germline variants associated with each tumour type...
November 24, 2017: Journal of Medical Genetics
https://www.readbyqxmd.com/read/29174387/role-of-tumor-necrosis-factor-%C3%AE-in-epithelial-to-mesenchymal-transition-in-transplanted-kidney-cells-in-recipients-with-chronic-allograft-dysfunction
#14
Chunchun Zhao, Zhen Xu, Zijie Wang, Chuanjian Suo, Jun Tao, Zhijian Han, Min Gu, Ruoyun Tan
BACKGROUND: Chronic allograft dysfunction (CAD) is characterized by allograft kidney interstitial fibrosis, the underlying mechanism of which is unclear. Our aim was to elucidate the role and mechanism of TNF-α-induced epithelial-to-mesenchymal transition (EMT) in transplant kidney tubular interstitial fibrosis. METHODS: Human kidney tissues from normal volunteers and CAD patients were assessed using periodic acid-Schiff, Masson trichrome and immunohistochemical staining...
November 23, 2017: Gene
https://www.readbyqxmd.com/read/29169625/ovarian-embryonal-carcinoma-in-a-dog
#15
B Banco, R Ferrari, D Stefanello, D Groppetti, A Pecile, S Faverzani, M Longo, D D Zani, G Ravasio, M Caniatti, V Grieco
A 17-month-old female doberman pinscher was referred for an abdominal mass and ascites. Exploratory laparotomy revealed the presence of a large neoplastic mass replacing the right ovary and associated with multiple mesovarian, mesometrial and peritoneal nodules. An ovariohysterectomy was performed. Grossly, the tumour was soft and multilocular with large areas of haemorrhage and necrosis. Microscopically, it was infiltrative and composed of round and polygonal cells arranged respectively in solid sheets or forming distorted tubular structures separated by thick fibrovascular septae...
November 2017: Journal of Comparative Pathology
https://www.readbyqxmd.com/read/29169037/a-nephron-model-for-study-of-drug-induced-acute-kidney-injury-and-assessment-of-drug-induced-nephrotoxicity
#16
Yueyang Qu, Fan An, Yong Luo, Yao Lu, Tingjiao Liu, Weijie Zhao, Bingcheng Lin
In this study, we developed a multilayer microfluidic device to simulate nephron, which was formed by "glomerulus", "Bowman's capsule", "proximal tubular lumen" and "peritubular capillary". In this microdevice, artificial renal blood flow was circulating and glomerular filtrate flow was single passing through, mimicking the behavior of a nephron. In this dynamic artificial nephron, we observed typical renal physiology, including the glomerular size-selective barrier, glomerular basement membrane charge-selective barrier, glucose reabsorption and para-aminohippuric acid secretion...
November 14, 2017: Biomaterials
https://www.readbyqxmd.com/read/29164711/vitamin-e-improves-testicular-damage-in-streptozocin-induced-diabetic-rats-via-increasing-vascular-endothelial-growth-factor-and-poly-adp-ribose-polymerase-1
#17
S S Omar, R G Aly, N M Badae
The precise mechanism by which diabetes impairs spermatogenesis and testicular function is not exactly known. Vascular endothelial growth factor (VEGF) and poly(ADP-ribose) polymerase-1 (PARP-1) are important for germ cell homeostasis and repair of DNA respectively. The aim of this study was to investigate the correlation between diabetes-induced testicular damage and testicular VEGF and PARP-1 expression and the possible protective role of vitamin E supplementation. A total of 45 male Wistar albino rats were randomly divided into three groups: Group I (nondiabetic rats), Group II (streptozocin-induced diabetic rats) and Group III (streptozocin-induced diabetic rats treated orally with 0...
November 21, 2017: Andrologia
https://www.readbyqxmd.com/read/29158549/hypoxia-inducible-factor-1%C3%AE-mediates-the-profibrotic-effect-of-albumin-in-renal-tubular-cells
#18
Junping Hu, Weili Wang, Fan Zhang, Pin-Lan Li, Krishna M Boini, Fan Yi, Ningjun Li
Proteinuria is closely associated with the progression of chronic kidney diseases (CKD) by producing renal tubulointerstitial fibrosis. Over-activation of hypoxia inducible factor (HIF)-1α has been implicated in the progression of CKD. The present study tested the hypothesis that HIF-1α mediates albumin-induced profibrotic effect in cultured renal proximal tubular cells. Incubation of the cells with albumin (40 μg/ml) for 72 hrs significantly increased the protein levels of HIF-1α, tissue inhibitor of metalloproteinase (TIMP)-1 and collagen-I, which were blocked by HIF-1α shRNA...
November 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29151918/engrailed-2-promoter-hyper-methylation-is-associated-with-its-downregulation-in-clear-cell-renal-cell-carcinoma
#19
Cai-Yong Lai, Gan-Shen Yu, Yin Xu, Xun Wu, Bao-Li Heng, Yi-Jun Xue, Ze-Xuan Su
In a previous study by the present authors, it was identified that the expression of engrailed-2 (EN2) gene was downregulated in clear cell renal cell carcinoma (cc-RCC). The aim of the present study was to determine whether aberrant methylation was the mechanism underlying the silencing of EN2 gene in cc-RCC. A total of forty paired cc-RCC tissues, four cc-RCC cell lines and one normal human proximal tubule epithelial cell line were evaluated for EN2 gene methylation status using methylation-specific polymerase chain reaction (PCR)...
December 2017: Oncology Letters
https://www.readbyqxmd.com/read/29133867/evidence-of-renal-angiomyolipoma-neoplastic-stem-cells-arising-from-renal-epithelial-cells
#20
Ana Filipa Gonçalves, Mojca Adlesic, Simone Brandt, Tomas Hejhal, Sabine Harlander, Lukas Sommer, Olga Shakhova, Peter J Wild, Ian J Frew
Renal angiomyolipomas (AML) contain an admixture of clonal tumour cells with features of several different mesenchymal lineages, implying the existence of an unidentified AML neoplastic stem cell. Biallelic inactivation of TSC2 or TSC1 is believed to represent the driving event in these tumours. Here we show that TSC2 knockdown transforms senescence-resistant cultured mouse and human renal epithelial cells into neoplastic stem cells that serially propagate renal AML-like tumours in mice. mTOR inhibitory therapy of mouse AML allografts mimics the clinical responses of human renal AMLs...
November 13, 2017: Nature Communications
keyword
keyword
14789
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"