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Rna renal fibrosis

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https://www.readbyqxmd.com/read/29749461/upregulation-of-allograft-inflammatory-factor%C3%A2-1-expression-and-secretion-by-macrophages-stimulated-with-aldosterone-promotes-renal-fibroblasts-to-a-profibrotic-phenotype
#1
Yushu Li, Xingzhi Wang, Lei Zhang, Xueying Yuan, Jianbing Hao, Jie Ni, Lirong Hao
Macrophages have been identified as a key cell type in the pathogenesis of renal interstitial fibrosis (RIF). However, the mechanism through which macrophages drive fibrosis remains unclear. The current study focuses on the effects and possible underlying mechanism of allograft inflammatory factor‑1 (AIF‑1), an inflammation‑responsive scaffold protein expressed and secreted by macrophages, in promoting fibroblasts to a profibrotic phenotype. In vivo experiments indicated that AIF‑1, CD68 and α‑smooth muscle actin (α‑SMA) were upregulated in kidney tissues of mice subjected to unilateral ureteric obstruction, while their expressions were inhibited by an aldosterone receptor antagonist, spironolactone...
May 10, 2018: International Journal of Molecular Medicine
https://www.readbyqxmd.com/read/29728415/crispr-mediated-gene-editing-to-assess-the-roles-of-tet2-and-dnmt3a-in-clonal-hematopoiesis-and-cardiovascular-disease
#2
Soichi Sano, Kousei Ohshima, Ying Wang, Yasufumi Katanasaka, Miho Sano, Kenneth Walsh
<u>Rationale:</u> Clonal hematopoiesis has been associated with increased mortality and cardiovascular disease (CVD). This condition can arise from somatic mutations in pre-leukemic driver genes within hematopoietic stem/progenitor cells (HSPC). Approximately 40 candidate driver genes have been identified, but mutations in only one of these genes, Ten-Eleven Translocation-2 (TET2), has been shown to casually contribute to CVD in murine models. <u>Objective:</u> To develop a facile system to evaluate the disease characteristics of different clonal hematopoiesis driver genes using lentivirus vector and CRISPR/Cas9 methodology...
May 4, 2018: Circulation Research
https://www.readbyqxmd.com/read/29723529/suppression-of-elp2-prevents-renal-fibrosis-and-inflammation-induced-by-unilateral-ureter-obstruction-uuo-via-inactivating-stat3-regulated-tgf-%C3%AE-1-and-nf-%C3%AE%C2%BAb-pathways
#3
Shan Lu, Hong-Wu Fan, Kai Li, Xiao-Di Fan
Renal fibrosis and inflammation are common underlying processes of progressive kidney diseases. Elongator protein 2 (Elp2), identical to signal transducer and activator of transcription-3 (STAT-3)-interacting protein-1 (Stip1), is a component of the Elongator complex that regulates RNA polymerase II. Elp2 regulates STAT-3 activation to control various cellular processes. The mechanisms of Elp2 prevention in renal interstitial fibrosis and inflammation remain unknown. In the study, Elp2 transgenic knockout (KO) and wild type (WT) mice were employed to investigate the effects of Elp2 on renal fibrosis and inflammation development after unilateral ureter obstruction (UUO) surgery...
April 30, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29720573/parabiosis-and-single-cell-rna-sequencing-reveal-a-limited-contribution-of-monocytes-to-myofibroblasts-in-kidney-fibrosis
#4
Rafael Kramann, Flavia Machado, Haojia Wu, Tetsuro Kusaba, Konrad Hoeft, Rebekka K Schneider, Benjamin D Humphreys
Fibrosis is the common final pathway of virtually all chronic injury to the kidney. While it is well accepted that myofibroblasts are the scar-producing cells in the kidney, their cellular origin is still hotly debated. The relative contribution of proximal tubular epithelium and circulating cells, including mesenchymal stem cells, macrophages, and fibrocytes, to the myofibroblast pool remains highly controversial. Using inducible genetic fate tracing of proximal tubular epithelium, we confirm that the proximal tubule does not contribute to the myofibroblast pool...
May 3, 2018: JCI Insight
https://www.readbyqxmd.com/read/29717517/lncrna-hotair-promotes-renal-interstitial-fibrosis-by-regulating-notch1-pathway-via-the-modulation-of-mir-124
#5
Hao Zhou, Lin Gao, Zuo-Hua Yu, Shi-Jun Hong, Zhi-Wei Zhang, Zhen-Zhen Qiu
OBJECTIVE: To understand the mechanism of long non-coding RNA (LncRNA) HOTAIR on renal interstitial fibrosis (RIF) by regulating Notch1 pathway via the modulation of miR-124. METHODS: Unilateral ureteral occlusion (UUO) was used to construct the RIF rat model. And HK-2 cells induced by TGF-β1 were used for the in vitro experiment, which were divided into five groups: Vehicle, TGF-β1, si-HOTAIR + TGF-β1, miR-124 inhibitor + TGF-β1, and si-HOTAIR+miR-124 inhibitor + TGF-β1 groups...
May 1, 2018: Nephrology
https://www.readbyqxmd.com/read/29700282/lincrna-1700020i14rik-alleviates-cell-proliferation-and-fibrosis-in-diabetic-nephropathy-via-mir-34a-5p-sirt1-hif-1%C3%AE-signaling
#6
Ailing Li, Rui Peng, Yan Sun, Handeng Liu, Huimin Peng, Zheng Zhang
Long intergenic noncoding RNAs (lincRNAs) have been gradually identified to be functional in a variety of different mechanisms associating with development and epigenetic regulation of cellular homeostasis. However, the study of lincRNAs in diabetic nephropathy (DN) is still in its infancy. Here, we have found dysexpressed long noncoding RNAs (lncRNAs) in renal tissues of db/db DN mice compared with db/m mice by RNA sequencing. In this study, 5 lincRNAs were confirmed to express in a consistent trend among these DN-related lncRNAs both in vivo and in vitro...
April 27, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29662642/successful-retreatment-with-grazoprevir-and-elbasvir-for-patients-infected-with-hepatitis-c-virus-genotype-1b-who-discontinued-prior-treatment-with-ns5a-inhibitor-including-regimens-due-to-adverse-events
#7
Tatsuo Kanda, Shin Yasui, Masato Nakamura, Shingo Nakamoto, Koji Takahashi, Shuang Wu, Reina Sasaki, Yuki Haga, Sadahisa Ogasawara, Tomoko Saito, Kazufumi Kobayashi, Soichiro Kiyono, Yoshihiko Ooka, Eiichiro Suzuki, Tetsuhiro Chiba, Hitoshi Maruyama, Mitsuhiko Moriyama, Naoya Kato
Background: Sustained virologic response (SVR) by interferon and interferon-free treatment can results in the reduction of advanced liver fibrosis and the occurrence of hepatocellular carcinoma in patients infected with hepatitis C virus (HCV). Recent interferon-free treatment for HCV shortens the duration of treatment and leads to higher SVR rates, without any serious adverse events. However, it is important to retreat patients who have had treatment-failure with HCV non-structural protein 5A (NS5A) inhibitor-including regimens...
March 23, 2018: Oncotarget
https://www.readbyqxmd.com/read/29627834/effects-of-long-non-coding-rna-linc00963-on-renal-interstitial-fibrosis-and-oxidative-stress-of-rats-with-chronic-renal-failure-via-the-foxo-signaling-pathway
#8
Wen Chen, Lei Zhang, Zhong-Qi Zhou, Yue-Qin Ren, Li-Na Sun, Yu-Lin Man, Zhong-Wei Ma, Zhi-Kui Wang
BACKGROUND/AIMS: Chronic renal failure (CRF) is usually associated with chronic diseases such as congestive heart failure and diabetes mellitus, the prevalence of which is increased with age. This study is designed to investigate the role of long intergenic non-coding RNA (lincRNA) LINC00963 in renal interstitial fibrosis (RIF) and oxidative stress (OS) of CRF via the forkhead box O (FoxO) signaling pathway. METHODS: Microarray data and annotated probe files related to CRF were downloaded by retrieving Gene Expression Omnibus (GEO) database to screen differentially expressed lncRNA...
March 29, 2018: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/29607931/ginsenoside-rg1-protects-against-renal-fibrosis-by-regulating-the-klotho-tgf-%C3%AE-1-smad-signaling-pathway-in-rats-with-obstructive-nephropathy
#9
Sha-Sha Li, Ao-Lin He, Zhi-Yong Deng, Qi-Feng Liu
Ginsenoside-Rg1 (G-Rg1) is an agent isolated from Panax ginseng that exerts anti-fibrotic effects; however, the mechanism is still unclear. Herein, we investigated whether G-Rg1 administration can mitigate or reverse unilateral ureteral obstruction (UUO)-induced renal fibrosis by regulating the Klotho/transforming growth factor (TGF)-β1/Smad signaling pathway in rats. Sprague-Dawley male rats were subjected to UUO, and rats in the treatment group were administered G-Rg1 or G-Rg1 plus Klotho short hairpin RNA interference (shRNA), while rats in the control and model groups were administered vehicle for 14 d...
2018: Biological & Pharmaceutical Bulletin
https://www.readbyqxmd.com/read/29582582/mirna-23a-27a-attenuates-muscle-atrophy-and-renal-fibrosis-through-muscle-kidney-crosstalk
#10
Aiqing Zhang, Min Li, Bin Wang, Janet D Klein, S Russ Price, Xiaonan H Wang
BACKGROUND: The treatment of muscle wasting is accompanied by benefits in other organs, possibly resulting from muscle-organ crosstalk. However, how the muscle communicates with these organs is less understood. Two microRNAs (miRs), miR-23a and miR-27a, are located together in a gene cluster and regulate proteins that are involved in the atrophy process. MiR-23a/27a has been shown to reduce muscle wasting and act as an anti-fibrotic agent. We hypothesized that intramuscular injection of miR-23a/27a would counteract both muscle wasting and renal fibrosis lesions in a streptozotocin-induced diabetic model...
March 26, 2018: Journal of Cachexia, Sarcopenia and Muscle
https://www.readbyqxmd.com/read/29506626/tgf%C3%AE-1-mediated-expression-and-alternative-splicing-of-fibronectin-extra-domain-a-in-human-podocyte-culture
#11
Tarunkumar Hemraj Madne, Mark Edward Carl Dockrell
Alternative splicing is a fundamental phenomenon to build protein diversity in health and diseases. Extra Domain A+ Fibronectin (EDA+Fn) is an alternatively spliced form of fibronectin protein present in the extra cellular matrix (ECM) in renal fibrosis. Podocytes are spectacular cell type and play a key role in filtration and synthesise ECM proteins in renal physiology and pathology. TGFβ1 is a strong stimulator of ECM proteins in renal injury. In this study, we have investigated alternative splicing of EDA+ Fn in human podocytes in response to TGFβ1...
February 28, 2018: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29491489/genome-wide-analysis-revealed-that-dznep-reduces-tubulointerstitial-fibrosis-via-down-regulation-of-pro-fibrotic-genes
#12
Imari Mimura, Yosuke Hirakawa, Yasuharu Kanki, Ryo Nakaki, Yutaka Suzuki, Tetsuhiro Tanaka, Hiroyuki Aburatani, Masaomi Nangaku
Tubulointerstitial fibrosis has been recently reported to be caused by the collapse of the epigenetic regulation of kidney diseases. We examined whether pharmacological inhibition of histone modification is effective against renal fibrosis. DZNep (3-deazaneplanocin A) was originally developed as an anti-cancer drug to inhibit the repressive histone mark, H3K27me3. We used a model of chronic tubulointerstitial fibrosis induced by unilateral ischaemia/reperfusion and administered DZNep intravenously to the mice for 8 weeks...
February 28, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29479137/micrornas-associated-with-the-development-of-kidney-diseases-in-humans-and-animals
#13
REVIEW
Osamu Ichii, Taro Horino
Mature microRNAs (miRNAs) are single-stranded RNAs with approximately 18-25 bases, and their sequences are highly conserved among animals. miRNAs act as posttranscriptional regulators by binding mRNAs, and their main function involves the degradation of their target mRNAs. Recent studies revealed altered expression of miRNAs in the kidneys during the progression of acute kidney injury (AKI) and chronic kidney disease (CKD) in humans and experimental rodent models by using high-throughput screening techniques including microarray and small RNA sequencing...
January 2018: Journal of Toxicologic Pathology
https://www.readbyqxmd.com/read/29467431/hypoxia-induced-long-non-coding-rna-malat1-is-dispensable-for-renal-ischemia-reperfusion-injury
#14
Malte Kölling, Celina Genschel, Tamas Kaucsar, Anika Hübner, Song Rong, Roland Schmitt, Inga Sörensen-Zender, George Haddad, Andreas Kistler, Harald Seeger, Jan T Kielstein, Danilo Fliser, Hermann Haller, Rudolf Wüthrich, Martin Zörnig, Thomas Thum, Johan Lorenzen
Renal ischemia-reperfusion (I/R) injury is a major cause of acute kidney injury (AKI). Non-coding RNAs are crucially involved in its pathophysiology. We identified hypoxia-induced long non-coding RNA Malat1 (Metastasis Associated Lung Adenocarcinoma Transcript 1) to be upregulated in renal I/R injury. We here elucidated the functional role of Malat1 in vitro and its potential contribution to kidney injury in vivo. Malat1 was upregulated in kidney biopsies and plasma of patients with AKI, in murine hypoxic kidney tissue as well as in cultured and ex vivo sorted hypoxic endothelial cells and tubular epithelial cells...
February 21, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29464020/mmp2-a2m-interaction-increases-ecm-accumulation-in-aged-rat-kidney-and-its-modulation-by-calorie-restriction
#15
Kyung Mok Kim, Ki Wung Chung, Hyeong Oh Jeong, Bonggi Lee, Dae Hyun Kim, June Whoun Park, Seong Min Kim, Byung Pal Yu, Hae Young Chung
Age-associated renal fibrosis is related with renal function decline during aging. Imbalance between accumulation and degradation of extracellular matrix is key feature of fibrosis. In this study, RNA-sequencing (RNA-Seq) results based on next-generation sequencing (NGS) data were analyzed to identify key proteins that change during aging and calorie restriction (CR). Among the changed genes, A2M and MMP2, which are known to interact, exhibited the highest between centrality (BC) and degree values when analyzed by protein-protein interaction (PPI)...
January 19, 2018: Oncotarget
https://www.readbyqxmd.com/read/29371016/high-glucose-up-regulates-microrna-34a-5p-to-aggravate-fibrosis-by-targeting-sirt1-in-hk-2-cells
#16
Meng Xue, Yang Li, Fang Hu, Yi-Jie Jia, Zong-Ji Zheng, Ling Wang, Yao-Ming Xue
Tubulointerstitial fibrosis (TIF) is crucial in the development of renal fibrosis in diabetic nephropathy(DN). Previous data shows that SIRT1 plays an important role on fibrosis, but the effect on TIF in DN and underlying mechanisms remains uncertain. In this study, we evaluated the vital role of SIRT1 and identified SIRT1 as a downstream target gene of microRNA-34a-5p (miR-34a-5p) in TIF of DN. The result revealed that expression of miR-34a-5p, fibronectin(FN),collagen type I (COL1) and transforming growth factor β1 (TGF-β1) were up-regulated accompanied by the corresponding down-regulation of SIRT1 in renal tissues of high fat diet and streptozotocin(HFD/STZ)induced diabetic mice with DN, and that the SIRT1 mRNA level was negatively correlated with miR-34a-5p expression in high glucose stimulated human proximal tubule cell line(HK-2) cells...
March 25, 2018: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/29364484/silencing-of-lncrna-tcons_00088786-reduces-renal-fibrosis-through-mir-132
#17
S-G Zhou, W Zhang, H-J Ma, Z-Y Guo, Y Xu
OBJECTIVE: To examine the role of long non-coding ribonucleic acid (LncRNA) TCONS_00088786 in the development of renal interstitial fibrosis and its potential mechanism in this process. MATERIALS AND METHODS: Unilateral ureteral obstruction (UUO) was used to induce tubulointerstitial fibrosis. Masson staining showed the degree of renal fibrosis in UUO mice. Immunohistochemistry and immunofluorescence were performed to detect the fibrosis-related proteins, the 24-h urine volume and protein content...
January 2018: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29342227/brain-cytosolic-phospholipase-a2%C3%AE-mediates-angiotensin-ii-induced-hypertension-and-reactive-oxygen-species-production-in-male-mice
#18
Chi Young Song, Nayaab S Khan, Francesca-Fang Liao, Bin Wang, Ji Soo Shin, Joseph V Bonventre, Kafait U Malik
Background: Recently we reported that angiotensin II (Ang II)-induced hypertension is mediated by group IV cytosolic phospholipase A2α (cPLA2α) via production of pro-hypertensive eicosanoids. Since Ang II increases blood pressure via its action in the subfornical organ (SFO), it led us to investigate the expression and possible contribution of cPLA2α to oxidative stress and development of hypertension in this brain area. Methods: Adenovirus (Ad)-green fluorescence protein (GFP) cPLA2α short hairpin (sh) RNA (Ad-cPLA2α shRNA) and its control Ad-scrambled shRNA (Ad-Scr shRNA) or Ad-enhanced cyan fluorescence protein cPLA2α DNA (Ad-cPLA2α DNA) and its control Ad-GFP DNA were transduced into SFO of cPLA2α+/+ and cPLA2α-/- male mice, respectively...
January 12, 2018: American Journal of Hypertension
https://www.readbyqxmd.com/read/29336056/ilei-is-an-important-intermediate-participating-in-the-formation-of-tgf-%C3%AE-1-induced-renal-tubular-emt
#19
Xing Zhao, Gang Luo, Yan Fan, Xiaoxue Ma, Jieqing Zhou, Hong Jiang
Renal interstitial fibrosis is the most common process by which chronic kidney diseases progress to end-stage renal failure. Epithelial-to-mesenchymal transitions (EMTs) play a crucial role in the progression of renal interstitial fibrosis. A newly identified cytokine, interleukin-like EMT inducer (ILEI), has been linked to EMT in some diseases. However, the effects of ILEI on renal tubular EMT have not yet been well established. Here, we characterize the expression of ILEI in tubular EMT and describe the role and mechanism of ILEI in transforming growth factor beta 1 (TGF-β1)-induced renal tubular EMT...
March 2018: Cell Biochemistry and Function
https://www.readbyqxmd.com/read/29246323/triptolide-restores-autophagy-to-alleviate-diabetic-renal-fibrosis-through-the-mir-141-3p-pten-akt-mtor-pathway
#20
Xiao-Yu Li, Shan-Shan Wang, Zhe Han, Fei Han, Yun-Peng Chang, Yang Yang, Mei Xue, Bei Sun, Li-Ming Chen
Fibrosis is the major pathological feature of diabetic kidney disease (DKD). Autophagy, a process to maintain metabolic homeostasis, is obviously inhibited in DKD. Triptolide (TP) is a traditional Chinese medicine extract known for immune suppression and anti-inflammatory and anti-cancer activities. In this study, we investigated the effects of TP on autophagy and fibrosis in DKD. TP restored autophagy and alleviated fibrosis in DKD rats and high-glucose-incubated human mesangial cells. After we applied 3-methyladenine (an autophagy inhibitor) and autophagy-related gene 5-small interfering RNA (siRNA), we found that the improvement of fibrosis on TP was related to the restoration of autophagy...
December 15, 2017: Molecular Therapy. Nucleic Acids
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