keyword
MENU ▼
Read by QxMD icon Read
search

Fra1

keyword
https://www.readbyqxmd.com/read/29913166/characterization-of-canonical-wnt-signalling-changes-after-induced-disruption-of-m%C3%A3-ller-cell-in-murine-retina
#1
Ling Zhu, Weiyong Shen, Ting Zhang, Ying Wang, Bobak Bahrami, Fanfan Zhou, Mark C Gillies
Müller cells are the primary glia in the retina, playing a critical role in retinal homeostasis and retinal pathology. This study evaluated the canonical Wnt signalling pathway and its downstream effects on retinal degeneration in a transgenic mouse model of inducible Müller cell disruption. Increased expression of the LacZ reporter gene in the retina suggested Wnt signalling had been activated after induced Müller cell disruption. Activation was validated by observing nuclear translocation of β-Catenin...
June 15, 2018: Experimental Eye Research
https://www.readbyqxmd.com/read/29807388/the-over-expression-of-fra1-disorder-the-inflammatory-cytokines-secretion-by-mtec-of-myasthenia-gravis-thymus
#2
Qian-Ru Li, Wen-Peng Ni, Ning-Jing Lei, Jin-Yue Yang, Xiao-Yan Xuan, Ping-Ping Liu, Guang-Ming Gong, Fei Yan, Yu-Shu Feng, Rui Zhao, Ying Du
The thymus of a Myasthenia gravis (MG) patient is often accompanied effected with follicular hyperplasia. Inflammatory cytokines in thymus induce the formation of germinal centers(GC). MG thymic inflammatory cytokines are predominantly secreted by stromal cells. Our previous studies revealed that the expression level of the Fra1 protein, which is a Fos member of theActivator Protein 1 transcription factors (AP-1), was higher in the MG thymus compared with that of the normal thymus. Based on that, we demonstrated that Fra1 was mainly expressed in medulla thymic epithelial cells (mTECs) and that the rate of Fra1 positive mTECs in the MG thymus was higher than normal...
May 28, 2018: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/29776592/response-to-metals-treatment-of-fra1-a-member-of-the-ap-1-transcription-factor-family-in-p-lividus-sea-urchin-embryos
#3
Roberta Russo, Rosa Bonaventura, Marco Chiaramonte, Caterina Costa, Valeria Matranga, Francesca Zito
Lithium (Li), Nickel (Ni), and Zinc (Zn) are metals normally present in the seawater, although they can have adverse effects on the marine ecosystem at high concentrations by interfering with many biological processes. These metals are toxic for sea urchin embryos, affecting their morphology and developmental pathways. In particular, they perturb differently the correct organization of the embryonic axes (animal-vegetal, dorso-ventral): Li is a vegetalizing agent and Ni disrupts the dorso-ventral axis, while Zn has an animalizing effect...
May 5, 2018: Marine Environmental Research
https://www.readbyqxmd.com/read/29662190/autocrine-activation-of-jak2-by-il-11-promotes-platinum-drug-resistance
#4
Wei Zhou, Wei Sun, Mingo M H Yung, Sheng Dai, Yihua Cai, Chi-Wei Chen, Yunxiao Meng, Jennifer B Lee, John C Braisted, Yinghua Xu, Noel T Southall, Paul Shinn, Xuefeng Huang, Zhangfa Song, Xiulei Chen, Yan Kai, Xin Cai, Zongzhu Li, Qiang Hao, Annie N Y Cheung, Hextan Y S Ngan, Stephanie S Liu, Stephanie Barak, Jing Hao, Zhijun Dai, Alexandros Tzatsos, Weiqun Peng, Huadong Pei, Zhiyong Han, David W Chan, Wei Zheng, Wenge Zhu
Antineoplastic platinum agents are used in first-line treatment of ovarian cancer, but treatment failure frequently results from platinum drug resistance. Emerging observations suggest a role of reactive oxygen species (ROS) in the resistance of cancer drugs including platinum drugs. However, the molecular link between ROS and cellular survival pathway is poorly understood. Using quantitative high-throughput combinational screen (qHTCS) and genomic sequencing, we show that in platinum-resistant ovarian cancer elevated ROS levels sustain high level of IL-11 by stimulating FRA1-mediated IL-11 expression and increased IL-11 causes resistance to platinum drugs by constitutively activating JAK2-STAT5 via an autocrine mechanism...
April 17, 2018: Oncogene
https://www.readbyqxmd.com/read/29520237/expression-of-proinflammatory-cytokines-is-upregulated-in-the-hypothalamic-paraventricular-nucleus-of-dahl-salt-sensitive-hypertensive-rats
#5
Enshe Jiang, Andrew D Chapp, Yuanyuan Fan, Robert A Larson, Taija Hahka, Michael J Huber, Jianqun Yan, Qing-Hui Chen, Zhiying Shan
Accumulating evidence indicates that inflammation is implicated in hypertension. However, the role of brain proinflammatory cytokines (PICs) in salt sensitive hypertension remains to be determined. Thus, the objective of this study was to test the hypothesis that high salt (HS) diet increases PICs expression in the paraventricular nucleus (PVN) and leads to PVN neuronal activation. Eight-week-old male Dahl salt sensitive (Dahl S) rats, and age and sex matched normal Sprague Dawley (SD) rats were divided into two groups and fed with either a HS (4% NaCl) or normal salt (NS, 0...
2018: Frontiers in Physiology
https://www.readbyqxmd.com/read/29503159/importin-%C3%AE-directly-regulates-the-motor-activity-and-turnover-of-a-kinesin-4
#6
Anindya Ganguly, Logan DeMott, Chuanmei Zhu, Daniel D McClosky, Charles T Anderson, Ram Dixit
Spatiotemporal regulation of kinesins is essential for microtubule-dependent intracellular transport. In plants, cell wall deposition depends on the FRA1 kinesin, whose abundance and motility are tightly controlled to match cellular growth rate. Here, we show that an importin-β, IMB4, regulates FRA1 activity in a developmental manner. IMB4 physically interacts with a PY motif in the FRA1 motor domain and inhibits its motility by preventing microtubule binding, while also protecting FRA1 against proteasome-mediated degradation, thus providing a mechanism to couple the motility and stability of FRA1...
March 12, 2018: Developmental Cell
https://www.readbyqxmd.com/read/29375681/alendronate-promotes-osteoblast-differentiation-and-bone-formation-in-ovariectomy-induced-osteoporosis-through-interferon-%C3%AE-signal-transducer-and-activator-of-transcription-1-pathway
#7
Xiaoqing Ma, Zhongyang Xu, Shaofeng Ding, Guangkun Yi, Qian Wang
Alendronate is commonly used for the treatment of postmenopausal osteoporosis; however, the underlying pathological molecular mechanisms of its action remain unclear. In the present study, the alendronate-treated signaling pathway in bone metabolism in rats with ovariectomy induced by osteoporosis was investigated. Rats with osteoporosis were orally administered alendronate or phosphate-buffered saline (control). In addition, the interferon-β (IFN-β)/signal transducer and activator of transcription 1 (STAT1) signaling pathway was investigated in osteoblasts following treatment with alendronate in vitro and in vivo ...
January 2018: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29037912/early-emergence-of-altered-5-ht-2a-receptor-evoked-behavior-neural-activation-and-gene-expression-following-maternal-separation
#8
Ankit Sood, Sthitapranjya Pati, Amrita Bhattacharya, Karina Chaudhari, Vidita A Vaidya
The early stress of Maternal Separation (MS) contributes to the establishment of adult psychopathology. The serotonergic (5-HT) system is implicated during this temporal window in mediating the development of mood-related behaviors. MS is reported to evoke altered 5-HT2A receptor function in adulthood. However, the ontogeny of altered 5-HT2A receptor responsivity following MS remains unknown. Here, we examined 5-HT2A receptor agonist, DOI (1-(2,5-dimethoxy-4-iodophenyl)-2-aminopropane) (2mg/kg) evoked responses, namely stereotypical head-twitch behaviors in control and MS Sprague-Dawley rat pups at postnatal day 21 (P21)...
April 2018: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/28976960/cancer-drug-addiction-is-relayed-by-an-erk2-dependent-phenotype-switch
#9
Xiangjun Kong, Thomas Kuilman, Aida Shahrabi, Julia Boshuizen, Kristel Kemper, Ji-Ying Song, Hans W M Niessen, Elisa A Rozeman, Marnix H Geukes Foppen, Christian U Blank, Daniel S Peeper
Observations from cultured cells, animal models and patients raise the possibility that the dependency of tumours on the therapeutic drugs to which they have acquired resistance represents a vulnerability with potential applications in cancer treatment. However, for this drug addiction trait to become of clinical interest, we must first define the mechanism that underlies it. We performed an unbiased CRISPR-Cas9 knockout screen on melanoma cells that were both resistant and addicted to inhibition of the serine/threonine-protein kinase BRAF, in order to functionally mine their genome for 'addiction genes'...
October 12, 2017: Nature
https://www.readbyqxmd.com/read/28945005/differential-expression-of-myometrial-ap-1-proteins-during-gestation-and-labour
#10
Lubna Nadeem, Tali Farine, Anna Dorogin, Elzbieta Matysiak-Zablocki, Oksana Shynlova, Stephen Lye
Preterm labour (PTL) is a leading cause of perinatal mortality and postnatal morbidity. Contractions of the uterine muscle (myometrium) that determine the onset of labour depend on the expression of contraction-associated proteins (CAPs, i.e. connexin43) regulated by dimeric AP-1 transcription factors. Here, we examined subcellular (by immunoblotting) and tissue expression (by immunohistochemistry) of myometrial AP-1 proteins (cJUN, JUNB, JUND, cFOS, FOSB, FRA1, FRA2) throughout gestation and TL in different species (mouse, rat and human)...
January 2018: Journal of Cellular and Molecular Medicine
https://www.readbyqxmd.com/read/28923912/exploiting-drug-addiction-mechanisms-to-select-against-mapki-resistant-melanoma
#11
Aayoung Hong, Gatien Moriceau, Lu Sun, Shirley Lomeli, Marco Piva, Robert Damoiseaux, Sheri L Holmen, Norman E Sharpless, Willy Hugo, Roger S Lo
Melanoma resistant to MAPK inhibitors (MAPKi) displays loss of fitness upon experimental MAPKi withdrawal and, clinically, may be resensitized to MAPKi therapy after a drug holiday. Here, we uncovered and therapeutically exploited the mechanisms of MAPKi addiction in MAPKi-resistant BRAFMUT or NRAS MUT melanoma. MAPKi-addiction phenotypes evident upon drug withdrawal spanned transient cell-cycle slowdown to cell-death responses, the latter of which required a robust phosphorylated ERK (pERK) rebound. Generally, drug withdrawal-induced pERK rebound upregulated p38-FRA1-JUNB-CDKN1A and downregulated proliferation, but only a robust pERK rebound resulted in DNA damage and parthanatos-related cell death...
January 2018: Cancer Discovery
https://www.readbyqxmd.com/read/28915613/alternative-promotion-and-suppression-of-metastasis-by-jnk2-governed-by-its-phosphorylation
#12
Sike Hu, Xiaoli Dong, Wenjuan Gao, Dwayne Stupack, Yanhua Liu, Rong Xiang, Na Li
Fos-related antigen 1 (Fra1) has been proposed as a gatekeeper of the mesenchymal-epithelial transition to epithelial-mesenchymal transition. Here, we showed that de-phosphorylated JNK2 increased the expression of Fra1 by promoting the expression of c-Jun and Jun-B. Conversely, phosphorylated JNK2 suppressed its expression via enhancing the ubiquitination of c-Jun and Jun-B. These data provided insights into the regulatory mechanism of JNK2 on the expression of Fra1. Our study thus demonstrated that the conversion of JNK2 from its phosphorylation to de-phosphorylation status promoted the switch of breast cancer cells from mesenchymal-epithelial transition to epithelial-mesenchymal transition...
August 22, 2017: Oncotarget
https://www.readbyqxmd.com/read/28872777/orexin-a-increases-sympathetic-nerve-activity-through-promoting-expression-of-proinflammatory-cytokines-in-sprague-dawley-rats
#13
Y Fan, E Jiang, T Hahka, Q H Chen, J Yan, Z Shan
AIM: Accumulating evidence suggests that orexin signalling is involved in the regulation of blood pressure and cardiovascular function. However, the underlying mechanisms are not clear. Here, we test the hypothesis that upregulated orexin A signalling in the paraventricular nucleus (PVN) increases sympathetic nerve activity (SNA) through stimulating expression of proinflammatory cytokines (PICs). METHODS: In vivo sympathetic nerve recordings were performed to test the impact of PVN orexin signalling on sympathetic outflow in Sprague Dawley (SD) rats...
February 2018: Acta Physiologica
https://www.readbyqxmd.com/read/28754138/serological-and-pcr-investigation-of-yersinia-pestis-in-potential-reservoir-hosts-from-a-plague-outbreak-focus-in-zambia
#14
S S Nyirenda, B M Hang'ombe, E Mulenga, B S Kilonzo
BACKGROUND: Plague is a bacterial zoonotic disease, caused by Yersinia pestis. Rodents are the natural hosts with fleas as the vehicle of disease transmission. Domestic and wild dogs and cats have also been identified as possible disease hosts. In Zambia, plague outbreaks have been reported in the Southern and Eastern regions in the last 20 years. Based on these observations, Y. pestis could possibly be endemically present in the area. METHODS: To substantiate such possibility, sera samples were collected from rodents, shrews, dogs and cats for detection of antibodies against Fraction 1 gene (Fra1) of Y...
July 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28678424/the-metabolic-syndrome-alters-the-mirna-signature-of-porcine-adipose-tissue-derived-mesenchymal-stem-cells
#15
Yu Meng, Alfonso Eirin, Xiang-Yang Zhu, Hui Tang, Pritha Chanana, Amir Lerman, Andre J Van Wijnen, Lilach O Lerman
Autologous transplantation of mesenchymal stem cells (MSCs) is a viable option for the treatment of several diseases. Evidence indicates that MSCs release extracellular vesicles (EVs) and that EVs shuttle miRNAs to damaged parenchymal cells to activate an endogenous repair program. We hypothesize that comorbidities may interfere with the packaging of cargo in MSC-derived EVs. Therefore, we examined whether metabolic syndrome (MetS) modulates the miRNA content packed within MSC-derived EVs. MSCs were collected from swine abdominal adipose tissue after 16 weeks of lean or obese diet (n = 7 each)...
January 2018: Cytometry. Part A: the Journal of the International Society for Analytical Cytology
https://www.readbyqxmd.com/read/28512262/alternative-promotion-and-suppression-of-metastasis-by-jnk2-governed-by-its-phosphorylation
#16
Sike Hu, Xiaoli Dong, Wenjuan Gao, Dwayne Stupack, Yanhua Liu, Rong Xiang, Na Li
Fos-related antigen 1 (Fra1) has been proposed as a gatekeeper of the mesenchymal-epithelial transition to epithelial-mesenchymal transition. Here, we showed that de-phosphorylated JNK2 increased the expression of Fra1 by promoting the expression of c-Jun and Jun-B. Conversely, phosphorylated JNK2 suppressed its expression via enhancing the ubiquitination of c-Jun and Jun-B. These data provided insights into the regulatory mechanism of JNK2 on the expression of Fra1. Our study thus demonstrated that the conversion of JNK2 from its phosphorylation to de-phosphorylation status promoted the switch of breast cancer cells from mesenchymal-epithelial transition to epithelial-mesenchymal transition...
April 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28399281/potential-roles-of-pigs-small-ruminants-rodents-and-their-flea-vectors-in-plague-epidemiology-in-sinda-district-eastern-zambia
#17
Stanley S Nyirenda, Bernard M Hang'ombe, Bukheti S Kilonzo, Henry L Kangwa, Evans Mulenga, Ladslav Moonga
A cross-sectional study was conducted in the Eastern part of Zambia that previously reported a plague outbreak. The aim of the study was to evaluate the potential role of pigs, goats, and sheep as sero-surveillance hosts for monitoring plague, and to investigate the flea vectors and potential reservoir hosts to establish the current status of plague endemicity in the district. Serum samples were collected from 96 rodents, 10 shrews, 245 domestic pigs, 232 goats, and 31 sheep, whereas 106 organs were eviscerated from rodents and shrews...
May 1, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28356106/protective-effects-of-various-ratios-of-dha-epa-supplementation-on-high-fat-diet-induced-liver-damage-in-mice
#18
Tingting Shang, Liang Liu, Jia Zhou, Mingzhen Zhang, Qinling Hu, Min Fang, Yongning Wu, Ping Yao, Zhiyong Gong
BACKGROUND: A sedentary lifestyle and poor diet are risk factors for the progression of non-alcoholic fatty liver disease. However, the pathogenesis of hepatic lipid accumulation is not completely understood. Therefore, the present study explored the effects of dietary supplementation of various ratios of docosahexaenoic acid (DHA) and eicosapentaenoic acid (EPA) on a high-fat diet-induced lipid metabolism disorder and the concurrent liver damage. METHODS: Using high-fat diet-fed C57BL/6 J mice as the animal model, diets of various ratios of DHA/EPA (2:1, 1:1, and 1:2) with an n-6/n-3 ratio of 4:1 were prepared using fish and algae oils enriched in DHA and/or EPA and sunflower seed oils to a small extent instead of the high-fat diet...
March 29, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28274739/dual-role-of-act1-in-keratinocyte-differentiation-and-host-defense-traf3ip2-silencing-alters-keratinocyte-differentiation-and-inhibits-il-17-responses
#19
Sylviane Lambert, William R Swindell, Lam C Tsoi, Stefan W Stoll, James T Elder
TRAF3IP2 is a candidate psoriasis susceptibility gene encoding Act1, an adaptor protein with ubiquitin ligase activity that couples the IL-17 receptor to downstream signaling pathways. We investigated the role of Act1 in keratinocyte responses to IL-17 using a tetracycline inducible short hairpin RNA targeting TRAF3IP2. Tetracycline exposure for 7 days effectively silenced TRAF3IP2 mRNA and Act1 protein, resulting in 761 genes with significant changes in expression (495 down, 266 up; >1.5-fold, P < 0...
July 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/28266648/the-trisaccharide-raffinose-modulates-epidermal-differentiation-through-activation-of-liver-x-receptor
#20
Tae-Young Na, Gyeong-Hwan Kim, Hyeon-Jeong Oh, Min-Ho Lee, Yong-Hyun Han, Ki Taek Kim, Ji-Su Kim, Dae-Duk Kim, Mi-Ock Lee
The epidermal barrier function requires optimal keratinocyte differentiation and epidermal lipid synthesis. Liver X receptor (LXR) α and β, are important transcriptional regulators of the epidermal gene expression. Here, we show that raffinose, a ubiquitously present trisaccharide in plants, activated the transcriptional activity of LXRα/β, which led to the induction of genes required for keratinocyte differentiation such as involucrin and filaggrin, and genes involved in lipid metabolism and transport including SCD1 and ABCA1 in both HaCaT and normal human epidermal keratinocytes...
March 7, 2017: Scientific Reports
keyword
keyword
55399
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"