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https://www.readbyqxmd.com/read/28737448/mast-cell-and-m1-macrophage-infiltration-and-local-pro-inflammatory-factors-were-attenuated-with-incretin-based-therapies-in-obesity-related-glomerulopathy
#1
Jiao He, Geheng Yuan, Fangxiao Cheng, Junqing Zhang, Xiaohui Guo
BACKGROUND: The global increase of obesity parallels the obesity-related glomerulopathy (ORG) epidemic. Dipeptidyl peptidase 4 inhibitors and glucagon-like peptide-1 receptor agonists were well recognized to attenuate renal injury independent of glucose control in diabetic nephropathy. There are limited studies focusing on their effects on ORG. We explored the effects of incretin-based therapies on early ORG and the inflammatory responses involved mainly concentrated on mast cell (MC) and macrophage (M) infiltration and local pro-inflammatory factors...
July 24, 2017: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/28737134/nephrotic-syndrome-in-primary-myelofibrosis-with-renal-extramedullary-hematopoiesis-and-glomerulopathy-in-the-jak-inhibitor-era
#2
Rachele Del Sordo, Rachele Brugnano, Carla Covarelli, Gioia Fiorucci, Franca Falzetti, Giorgio Barbatelli, Emidio Nunzi, Angelo Sidoni
Primary myelofibrosis (PMF) is an uncommon form of myeloproliferative neoplasm (MPN) characterized by a proliferation of predominantly megakaryocytes and granulocytes in the bone marrow that, in fully-developed disease, is associated with reactive deposition of fibrous connective tissue, extramedullary hematopoiesis (EMH), and splenomegaly. Kidney involvement is rare and clinically presents with proteinuria, nephrotic syndrome, and renal insufficiency. Renal damage can be due to EMH and glomerulopathy. Renal EMH presents three patterns: infiltration of the interstitium with possible renal failure caused by functional damage of parenchyma and vessels, infiltration of capsule and pericapsular adipose tissue, and sclerosing mass-like lesions that can cause hydronephrosis and hydroureter with obstructive uropathy and renal failure...
July 24, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28726774/interleukin-22-ameliorated-renal-injury-and-fibrosis-in-diabetic-nephropathy-through-inhibition-of-nlrp3-inflammasome-activation
#3
Shaofei Wang, Yubin Li, Jiajun Fan, Xuyao Zhang, Jingyun Luan, Qi Bian, Tao Ding, Yichen Wang, Ziyu Wang, Ping Song, Daxiang Cui, Xiaobin Mei, Dianwen Ju
Diabetic nephropathy (DN) is one of the most lethal complications of diabetes mellitus with metabolic disorders and chronic inflammation. Although the cytokine IL-22 was initially implicated in the pathogenesis of chronic inflammatory diseases, recent studies suggested that IL-22 could suppress inflammatory responses and alleviate tissue injury. Herein, we examined the role of IL-22 in DN. We found that serum levels of IL-22 were significantly downregulated in both patients and mice with DN. The expression of IL-22 was further decreased with the progression of DN, whereas IL-22 gene therapy significantly ameliorated renal injury and mesangial matrix expansion in mice with established nephropathy...
July 20, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28717059/pharmacological-effects-of-a-vitamin-k1-2-3-epoxide-reductase-vkor-inhibitor-3-acetyl-5-methyltetronic-acid-on-cisplatin-induced-fibrosis-in-rats
#4
Masashi Uchida, Tomoya Miyoshi, Yohei Miyamoto
Cisplatin (CDDP) is a chemotherapeutic agent that is widely used in the treatment of lymphomas and solid malignancies. However, its clinical usage is limited by its severe side effects in the kidneys. Glomerular and tubular injuries in the kidneys commonly progress to interstitial fibrosis and, ultimately, the end stage of renal failure. We previously reported that 3-acetyl-5-methyltetronic acid (AMT) had inhibitory effects on rat renal vitamin K1 2,3-epoxide reductase (VKOR) in vitro and also suppressed mesangial cell proliferation and, consequently, the formation of fibrosis via the vitamin K-dependent activation of the growth arrest-specific 6 (Gas6)/Axl pathway in anti-Thy-1 glomerulonephritis (Thy-1 GN) in rats...
July 16, 2017: Journal of Veterinary Medical Science
https://www.readbyqxmd.com/read/28716013/long-term-renal-survival-of-%C3%AE-3-heavy-chain-deposition-disease-a-case-report
#5
Takayuki Katsuno, Shige Mizuno, Masatsuna Mabuchi, Naotake Tsuboi, Atsushi Komatsuda, Shoichi Maruyama
BACKGROUND: Monoclonal immunoglobulin deposition disease (MIDD) is characterized by the non-amyloid deposition of monoclonal immunoglobulin fragments in the basement membranes. Heavy chain deposition disease (HCDD) is a type of MIDD. HCDD is an extremely rare disease, and only three cases have been reported in Japan up to the present. The prognosis of HCDD is very poor, and optimal treatment has not been established. Only a few cases of HCDD with favorable long-term renal prognosis have been reported to date...
July 17, 2017: BMC Nephrology
https://www.readbyqxmd.com/read/28713834/renoprotective-effect-of-the-shen-yan-fang-shuai-formula-by-inhibiting-tnf-%C3%AE-nf-%C3%AE%C2%BAb-signaling-pathway-in-diabetic-rats
#6
Jie Lv, Zhen Wang, Ying Wang, Weiwei Sun, Jingwei Zhou, Mengdi Wang, Wei Jing Liu, Yaoxian Wang
Diabetic kidney disease (DKD) is the leading cause of end-stage kidney disease, and satisfactory therapeutic strategies have not yet been established. The Shen-Yan-Fang-Shuai Formula (SYFSF) is a traditional Chinese formula composed of Astragali radix, Radixangelicae sinensis, Rheum officinale Baill, and four other herbs. It has been widely used as an effective treatment for DKD patients in China. However, little is known about the molecular mechanisms underlying SYFSF's renoprotection. In this study, we compared the protective effect of SYFSF to irbesartan on the histology and renal cells in type 2 DKD rat model and high-glucose (HG) cultured mesangial cells, respectively...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/28713151/trifluoperazine-inhibits-mesangial-cell-proliferation-by-arresting-cell-cycle-dependent-mechanisms
#7
Baodong Wang, Xiaoshuang Zhou, Yanqin Wang, Rongshan Li
BACKGROUND It has been reported that trifluoperazine (TFP) inhibits proliferation of cancer cells, however, the effects of TFP in renal proliferation diseases are still unclear. This study examined the effects of TFP on proliferation of human renal mesangial cells and analyzed the underlying mechanisms. MATERIAL AND METHODS Cell proliferation in vivo was determined by HE staining, immunohistochemistry of proliferating cell nuclear antigen (PCNA), and Western blot analysis (Ki-67 and PCNA). Effects of different TFP concentrations and treatment duration on cell proliferation and cell cycle were analyzed using the MTT assay and flow cytometry...
July 17, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28712960/mrtf-a-mediated-fn-and-icam-1-expression-in-ages-induced-rat-glomerular-mesangial-cells-via-activating-stat5
#8
Qiuhong Chen, Junying Huang, Wenyan Gong, Zhiquan Chen, Jiani Huang, Peiqing Liu, Heqing Huang
Advanced glycation end products (AGEs), formed at an accelerated rate under diabetes, play a role in inflammation and fibrosis in mesangial areas in diabetic nephropathy (DN). However, the transcriptional modulator that mediates the cellular response to AGEs remains largely obscure. Our goal was to determine whether myocardin-related transcription factor (MRTF)-A, a key protein involved in the transcriptional regulation of smooth muscle cell phenotype, was responsible for the glomerular mesangial cells (GMCs) injury by AGEs, and, if so, how MRTF-A promoted mesangial dysfunction initiated by AGEs...
July 13, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28709640/genome-wide-identification-of-genes-essential-for-podocyte-cytoskeletons-based-on-single-cell-rna%C3%A2-sequencing
#9
Yuqiu Lu, Yuting Ye, Wenduona Bao, Qianqian Yang, Jinquan Wang, Zhihong Liu, Shaolin Shi
Gene expression differs substantially among individual cells of the same type. We speculate that genes that are expressed in all but a portion of cells of a given cell type would be likely essential and required for either the cell survival (housekeeping) or for the cell type's unique structure and function, enabling the organism to survive. Here, we performed RNA-seq of 20 mouse podocytes using the Fluidigm C1 system and identified 335 genes that were expressed in all of them. Among them, 239 genes were also expressed in mesangial and endothelial cells and were involved in energy metabolism, protein synthesis, etc...
July 11, 2017: Kidney International
https://www.readbyqxmd.com/read/28701517/mesangial-cell-mammalian-target-of-rapamycin-complex-1-activation-results-in-mesangial-expansion
#10
Kojiro Nagai, Tatsuya Tominaga, Sayo Ueda, Eriko Shibata, Masanori Tamaki, Motokazu Matsuura, Seiji Kishi, Taichi Murakami, Tatsumi Moriya, Hideharu Abe, Toshio Doi
Human glomerular diseases can be caused by several different diseases, many of which include mesangial expansion and/or proliferation followed by glomerulosclerosis. However, molecular mechanisms underlying the pathologic mesangial changes remain poorly understood. Here, we investigated the role of the mammalian target of rapamycin complex 1 (mTORC1)-S6 kinase pathway in mesangial expansion and/or proliferation by ablating an upstream negative regulator, tuberous sclerosis complex 1 (TSC1), using tamoxifen-induced Foxd1-Cre mice [Foxd1ER(+) TSC1 mice]...
July 12, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28701356/reciprocal-expression-of-mir-214-and-pten-by-high-glucose-regulates-glomerular-mesangial-and-proximal-tubular-epithelial-cell-hypertrophy-and-matrix-expansion
#11
Amit Bera, Falguni Das, Nandini Ghosh-Choudhury, Meenalakshmi M Mariappan, Balakuntalam S Kasinath, Goutam Ghosh Choudhury
Aberrant expression of microRNAs (miRs) contributes to diabetic renal complications including renal hypertrophy and matrix protein accumulation. Reduced expression of PTEN by hyperglycemia contributes to these processes. We considered involvement of microRNA in the downregulation of PTEN. In the renal cortex of type 1 diabetic mice, we detected increased expression of miR-214 in association with decreased levels of PTEN and, enhanced Akt phosphorylation and fibronectin expression. Mesangial and proximal tubular epithelial cells exposed to high glucose showed augmented expression of miR-214...
July 12, 2017: American Journal of Physiology. Cell Physiology
https://www.readbyqxmd.com/read/28692941/fibroblast-growth-factor-21-ameliorates-high-glucose-induced-fibrogenesis-in-mesangial-cells-through-inhibiting-stat5-signaling-pathway
#12
Shuai Li, Xiaochen Guo, Teng Zhang, Nan Wang, Junyan Li, Pengfei Xu, Shengqi Zhang, Guiping Ren, Deshan Li
Fibroblast growth factor 21 (FGF21) is a member of the FGF family and acts as a potent regulator of glucose and lipid homeostasis, but its effect on renal fibrosis and the underlying mechanisms are totally unknown. The purpose of this study was designed to investigate whether FGF21 has effect on high glucose-induced fibrogenesis in human mesangial cells (HMCs) and the underlying mechanism. High glucose is well known to stimulate the expression of extracelluar matrix (ECM) in human mesangial cells. In humans, overexpression and deposition of ECM lead to renal fibrosis...
July 7, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28682562/-renal-diseases-related-to-myh9-disorders
#13
Dario Galeano, Luca Zanoli, Vincenzo L'Imperio, Pasquale Fatuzzo, Antonio Granata
Mutations in MYH9 gene encoding the nonmuscle myosin heavy chain IIA (NMMHC-IIA) are related to a number of rare autosomal-dominant disorders which has been known as May-Hegglin disease, Sebastian syndrome, Fechtner syndrome and Epstein syndrome. Their common clinical features are congenital macrothrombocytopaenia and polymorphonuclear inclusion bodies, in addition to a variable risk of developing proteinuria, chronic kidney disease progressing toward end stage, sensorineural deafness and presenile cataracts...
April 2017: Giornale Italiano di Nefrologia: Organo Ufficiale Della Società Italiana di Nefrologia
https://www.readbyqxmd.com/read/28674043/beneficial-effects-of-systemically-administered-human-muse-cells-in-adriamycin-nephropathy
#14
Nao Uchida, Yoshihiro Kushida, Masaaki Kitada, Shohei Wakao, Naonori Kumagai, Yasumasa Kuroda, Yoshiaki Kondo, Yukari Hirohara, Shigeo Kure, Gregorio Chazenbalk, Mari Dezawa
Multilineage-differentiating stress-enduring (Muse) cells are nontumorigenic endogenous pluripotent-like stem cells that can be collected from various organs. Intravenously administered Muse cells have been shown to spontaneously migrate to damaged tissue and replenish lost cells, but the effect in FSGS is unknown. We systemically administered human bone marrow-derived Muse cells without concurrent administration of immunosuppressants to severe combined immune-deficient (SCID) and BALB/c mouse models with adriamycin-induced FSGS (FSGS-SCID and FSGS-BALB/c, respectively)...
July 3, 2017: Journal of the American Society of Nephrology: JASN
https://www.readbyqxmd.com/read/28672912/rutin-suppresses-high-glucose-induced-acta2-and-p38-protein-expression-in-diabetic-nephropathy
#15
Chun-Shan Han, Kai Liu, Ning Zhang, Shi-Wen Li, Hai-Cheng Gao
The present study investigated the effect of rutin on high glucose-induced actin, α2, smooth muscle, aorta (ACTA2) and p38 protein expression in diabetic nephropathy (DN). Human mesangial cells were divided into a control group, high glucose-induced mesangial cell group, high glucose + captopril group, and high glucose + rutin group (low, middle and high doses of rutin). Cell viability, adenosine 5'-triphosphate (ATP) content, cell cycle, and ACTA2 and p38 protein expression were examined using MTT assay, ATP assay kit, flow cytometry and immunofluorescence staining in cultured human mesangial cells, respectively...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28672904/katp-channels-in-high-glucose-induced-rat-mesangial-cell-proliferation-and-release-of-mmp-2-and-fibronectin
#16
Bei Zhang, Yongquan Shi, Junjie Zou, Xiangfang Chen, Wei Tang, Fei Ye, Zhimin Liu
ATP-sensitive potassium (KATP) channels are well characterized in cardiac, pancreatic and many other muscle cells. The purpose of this study was to determine if KATP channels play a role in diabetic nephropathy (DN). In the present study, functional expression of the KATP channel was examined in rat mesangial cells with or without high glucose (HG) stimulation. The mesangial cell proliferation and the release of matrix metalloproteinase (MMP)-2 and fibronectin in response to high glucose with a selective opener of KATP (diazoxide, DZX), or with a selective inhibitor of KATP (5-hydroxydecanoate, 5-HD) were also measured...
July 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28671608/lipotoxicity-induced-prmt1-exacerbates-mesangial-cell-apoptosis-via-endoplasmic-reticulum-stress
#17
Min-Jung Park, Ho Jae Han, Dong-Il Kim
Lipotoxicity-induced mesangial cell apoptosis is implicated in the exacerbation of diabetic nephropathy (DN). Protein arginine methyltransferases (PRMTs) have been known to regulate a variety of biological functions. Recently, it was reported that PRMT1 expression is increased in proximal tubule cells under diabetic conditions. However, their roles in mesangial cells remain unexplored. Thus, we examined the pathophysiological roles of PRMTs in mesangial cell apoptosis. Treatment with palmitate, which mimics cellular lipotoxicity, induced mesangial cell apoptosis via protein kinase RNA-like endoplasmic reticulum kinase (PERK) and ATF6-mediated endoplasmic reticulum (ER) stress signaling...
July 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28668953/iga-enhances-igf-1-mitogenic-activity-via-receptor-modulation-in-glomerular-mesangial-cells-implications-for-iga-induced-nephropathy
#18
Amal Al-Eisa, Gursev S Dhaunsi
BACKGROUND/AIM: Glomerulonephritis due to mesangial proliferation is responsible for renal dysfunction in IgA nephropathy (IgAN), however molecular mechanisms of pathogenesis are not well known. We examined the effect of IgA on Insulin-like Growth Factor-1 (IGF-1) activity, a potent mitogen with vital role in growth and development of children, and IGF-1 receptor (IGF-1R) in cultures of glomerular mesangial cells (GMC). METHODS: GMC were isolated from rat kidneys using sieving and enzymatic digestion of tissue homogenates, and cultured in RPMI 1640 medium...
June 27, 2017: Kidney & Blood Pressure Research
https://www.readbyqxmd.com/read/28659572/effect-of-vitamin-d-and-tacrolimus-combination-therapy-on-iga-nephropathy
#19
Dong Yuan, Zhan Fang, Fang Sun, Jing Chang, Jian Teng, Shuhua Lin, Xiaoming Liu
BACKGROUND To explore the effects and the mechanism of vitamin D (VD) and tacrolimus (TAC) combinatorial therapy in the treatment of IgA nephropathy (IgAN) in a rat model. MATERIAL AND METHODS IgAN rat models constructed by oral immunization with bovine serum albumin (BSA) and lipopolysaccharide (LPS) (n=30) and were treated with: saline (model group), TAC (TAC group), or TAC+VD therapy (TAC+VD group) through gavage daily for 14 days. Serum creatinine (Scr), albumin (ALB), blood urea nitrogen (BUN), and urinary protein (UAE) levels were determined...
June 29, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28659030/tongxinluo-inhibits-renal-fibrosis-in-diabetic-nephropathy-involvement-of-the-suppression-of-intercellular-transfer-of-tgf-formula-see-text-1-containing-exosomes-from-gecs-to-gmcs
#20
Xiao-Ming Wu, Yan-Bin Gao, Li-Ping Xu, Da-Wei Zou, Zhi-Yao Zhu, Xiao-Lei Wang, Wei-Jie Yao, Liang-Tao Luo, Yu Tong, Nian-Xiu Tian, Zhe-Ji Han, Wan-Yu Dang
Glomerular mesangial cells (GMCs) activation is implicated in the pathogenesis of diabetic nephropathy (DN). Our previous study revealed that high glucose (HG)-treated glomerular endothelial cells (GECs) produce an increased number of TGF-β1-containing exosomes to activate GMCs through the TGF-β1/Smad3 signaling pathway. We also identified that Tongxinluo (TXL), a traditional Chinese medicine, has beneficial effects on the treatment of DN in DN patients and type 2 diabetic mice. However, it remained elusive whether TXL could ameliorate renal structure and function through suppression of intercellular transfer of TGF-β1-containing exosomes from GECs to GMCs...
June 28, 2017: American Journal of Chinese Medicine
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