4.7 Article

Saxagliptin Attenuates Albuminuria by Inhibiting Podocyte Epithelial-to-Mesenchymal Transition via SDF-1α in Diabetic Nephropathy

期刊

FRONTIERS IN PHARMACOLOGY
卷 8, 期 -, 页码 -

出版社

FRONTIERS MEDIA SA
DOI: 10.3389/fphar.2017.00780

关键词

diabetic nephropathy; podocyte epithelial-to-mesenchymal transition; saxagliptin; NOX2; SDF-1 alpha

资金

  1. AstraZeneca
  2. National Natural Science Foundation of China [81273915, 81470187]
  3. Natural Science Foundation of Tianjin [14JCYBJC26200, 15ZXHLSY00460]

向作者/读者索取更多资源

The dipeptidyl peptidase-4 (DPP-4) inhibitor saxagliptin has been found to reduce progressive albuminuria, but the exact mechanism of inhibition is unclear. Podocyte epithelial-to-mesenchymal transition (EMT) has emerged as a potential pathway leading to proteinuria in diabetic nephropathy (DN). Stromal cell-derived factor-1 alpha (SDF-1 alpha), one of the substrates of DPP-4, can activate the protein kinase A pathway and subsequently inhibit its downstream effector, transforming growth factor-beta 1 (TGF-beta 1), which induces podocyte EMT. Thus, this study was designed to test the hypothesis that saxagliptin reduces progressive albuminuria by preventing podocyte EMT through inhibition of SDF-1 alpha cleavage in DN. The results of a series of assays, including ELISA, western blotting, and immunochemistry/immunofluorescence, showed that saxagliptin treatment obviously ameliorated urinary microalbumin excretion and renal histological changes in high-fat diet/streptozotocin-induced diabetic rats. Furthermore, saxagliptin-treated diabetic rats presented with suppression of DPP-4 activity/protein expression accompanied by restoration of SDF-1 alpha levels, which subsequently hindered NOX2 expression and podocyte EMT. In vitro, we consistently observed that saxagliptin significantly inhibited increased DPP-4 activity/expression, oxidative stress and podocyte EMT. Application of an SDF-1 alpha receptor inhibitor (AMD3100) to cultured podocytes further confirmed the essential role of SDF-1 alpha in podocyte EMT inhibition. In sum, we demonstrated for the first time that saxagliptin treatment plays an essential role in ameliorating progressive DN by preventing podocyte EMT through a SDF-1 alpha-related pathway, suggesting that saxagliptin could offer renoprotection and that SDF-1 alpha might be a potential therapeutic target for DN.

作者

我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。

评论

主要评分

4.7
评分不足

次要评分

新颖性
-
重要性
-
科学严谨性
-
评价这篇论文

推荐

Article Engineering, Civil

Probabilistic analysis of exterior hanging scaffold strength under impact load

Tengfei Xu, Guoqing Chen, Kailai Deng, Limin Chen, Xiaolong Li, Song Lou

STRUCTURES (2020)

Article Spectroscopy

Phonon anharmonicity of thermoelectric material HfTe5 studied by Raman spectroscopy

Qiyun Xie, Lihuan Xu, Chengxiang Hu, Limin Chen, Jiajin Zheng, Wei Wang, Handi Yin, Guofeng Cheng, Xiaoqian Ai

Summary: Understanding the phonon-phonon anharmonic effect in HfTe5 is crucial for both scientific interest and potential thermoelectric applications. Raman spectroscopy was used to study the phonon anharmonicity by measuring the temperature dependence of phonon mode softening and broadening in HfTe5 single crystals. Results showed that four phonon anharmonic effects are significant, leading to low thermal conductivity in HfTe5 crystals due to reduced phonon lifetime from enhanced phonon scattering.

JOURNAL OF RAMAN SPECTROSCOPY (2021)

Article Nanoscience & Nanotechnology

Coherent Confocal Light Scattering Spectroscopic Microscopy Evaluates Cancer Progression and Aggressiveness in Live Cells and Tissue

Douglas K. Pleskow, Lei Zhang, Vladimir Turzhitsky, Mark F. Coughlan, Umar Khan, Xuejun Zhang, Conor J. Sheil, Maria Glyavina, Liming Chen, Shweta Shinagare, Yuri N. Zakharov, Edward Vitkin, Irving Itzkan, Lev T. Perelman, Le Qiu

Summary: The novel coherent confocal light scattering and absorption spectroscopic microscopy enables high-resolution imaging of structures in live cells, down to 10 nm spatial scales, and can sense differences in cancer aggressiveness in live cells and identify cancer grades in tumor tissues without labels.

ACS PHOTONICS (2021)

Article Pharmacology & Pharmacy

Effects of Overexpression of Fibroblast Growth Factor 15/19 on Hepatic Drug Metabolizing EnzymesS

Daniel Rizzolo, Bo Kong, Stephanie Piekos, Liming Chen, Xiaobo Zhong, Jie Lu, Jian Shi, Hao-jie Zhu, Qian Yang, Albert Li, Linhao Li, Hongbing Wang, Anna Siemiatkowska, Celine Park, Leonid Kagan, Grace L. Guo

Summary: Fibroblast growth factors 15 and 19 are important in maintaining bile acid homeostasis, and are currently being tested as potential treatments for certain liver diseases. This study found that long-term elevations of these growth factors can lead to increased expression of drug metabolizing enzymes, affecting drug metabolism and pharmacokinetics. The overexpression of Fgf15 was also found to cause a switch in the expression pattern of these enzymes in male mice, similar to the pattern observed in female mice. This change was associated with differences in growth hormone secretion and STAT5 signaling.

DRUG METABOLISM AND DISPOSITION (2022)

Review Cell Biology

Extracellular Vesicles in Acute Leukemia: A Mesmerizing Journey With a Focus on Transferred microRNAs

Mehrdad Izadirad, Zoufang Huang, Farideh Jafari, Amir Ali Hamidieh, Ahmad Gharehbaghian, Yi-Dong Li, Leila Jafari, Zhe-Sheng Chen

Summary: Despite their small size, extracellular vesicles (EVs) play a significant role in the pathogenesis of acute leukemia, especially as carriers of important molecules like miRNA. Research has shown a growing interest in the potential prognostic value and role of leukemia-derived EVs in clinical settings.

FRONTIERS IN CELL AND DEVELOPMENTAL BIOLOGY (2021)

Article Biochemistry & Molecular Biology

Rational assembly of RGD/MoS2/Doxorubicin nanodrug for targeted drug delivery, GSH-stimulus release and chemo-photothermal synergistic antitumor activity

Chunhong Mo, Zhao Wang, Jianying Yang, Yiqiang Ouyang, Qian Mo, Shuting Li, Ping He, Limin Chen, Xinchun Li

Summary: This study presents a facile design and construction of a nanodrug system integrating targeted drug delivery and synergistic chemo-photothermal antitumor activity. The prepared nanocarrier using MoS2 nanosheets modified by alpha(v)beta(3) integrin binding peptide (RGD) and thiolated doxorubicin (DOX) showed favorable stability, biocompatibility, and photothermal conversion efficiency. The nanodrug exhibited targeted delivery to Hela cells and significantly reduced cardiotoxicity compared to free DOX, demonstrating powerful photothermal induced tumor-killing efficacy.

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY B-BIOLOGY (2022)

Article Biochemistry & Molecular Biology

CDK6-PI3K signaling axis is an efficient target for attenuating ABCB1/P-gp mediated multi-drug resistance (MDR) in cancer cells

Lei Zhang, Yidong Li, Chaohua Hu, Yangmin Chen, Zhuo Chen, Zhe-Sheng Chen, Jian-Ye Zhang, Shuo Fang

Summary: This study reveals CDK6-PI3K as a novel target signaling axis to reverse ABCB1-mediated multidrug resistance for the first time in cancers. Deficiency of CDK6 leads to downregulation of ABCB1 expression and reversal of multidrug resistance.

MOLECULAR CANCER (2022)

Article Pharmacology & Pharmacy

Ribociclib Inhibits P-gp-Mediated Multidrug Resistance in Human Epidermoid Carcinoma Cells

Lei Zhang, Biwei Ye, Yunfeng Lin, Yi-Dong Li, Jing-Quan Wang, Zhuo Chen, Feng-Feng Ping, Zhe-Sheng Chen

Summary: In this study, the researchers investigated the effect of the CDK4/6 inhibitor, ribociclib, on multidrug resistance (MDR) mediated by P-glycoprotein (P-gp) in human epidermoid carcinoma cells. They found that ribociclib increased the efficacy of a P-gp substrate drug, colchicine, by down-regulating the expression of P-gp and increasing its ATPase activity. Docking studies suggested that ribociclib interacted with the drug-substrate binding site of P-gp. Additionally, ribociclib inhibited the drug efflux activity of P-gp, leading to increased intracellular accumulation of doxorubicin. These findings suggest that ribociclib may be a potential agent for combined therapy in cancers with P-gp-mediated MDR.

FRONTIERS IN PHARMACOLOGY (2022)

Article Multidisciplinary Sciences

In vivo detection of bile duct pre-cancer with endoscopic light scattering spectroscopy

Douglas K. Pleskow, Mandeep S. Sawhney, Paul K. Upputuri, Tyler M. Berzin, Mark F. Coughlan, Umar Khan, Maria Glyavina, Xuejun Zhang, Liming Chen, Conor J. Sheil, Jonah M. Cohen, Edward Vitkin, Yuri N. Zakharov, Irving Itzkan, Lei Zhang, Le Qiu, Lev T. Perelman

Summary: Bile duct cancer is a common type of liver cancer, often diagnosed in late stages resulting in poor survival rates. A reliable technique for detecting pre-cancerous changes in the bile duct is urgently needed. This study presents an endoscopic light scattering technique that can accurately evaluate the malignant potential of the bile duct. The technique showed high accuracy in detecting malignant transformation in a pilot study, indicating its potential for non-invasive in vivo identification of biliary duct pre-cancer.

NATURE COMMUNICATIONS (2023)

Article Integrative & Complementary Medicine

Isolation, bioassay and 3D-QSAR analysis of 8-isopentenyl flavonoids from Epimedium sagittatum maxim. as PDE5A inhibitors

Juntao Li, Yue Wu, Xinxin Yu, Xinyu Zheng, Jiechen Xian, Senjie Li, Wanyin Shi, Yun Tang, Zhe-Sheng Chen, Guixia Liu, Shen Yao, Jian Xu, Xiangwei Zheng

Summary: This study revealed for the first time the pharmacodynamic mechanism of 8-isopentenyl flavonoids in Epimedium sagittatum Maxim. for treating erectile dysfunction (ED), and identified several compounds with significant inhibitory activities and the ability to activate cellular signaling pathways.

CHINESE MEDICINE (2022)

Review Chemistry, Multidisciplinary

How Intrinsically Disordered Proteins Modulate Biomolecular Condensates

Yanyan Wang, Limin Chen, Siyang Li, Luhua Lai

Summary: Biomolecular condensates, formed as membraneless organelles, have diverse biological functions and are associated with diseases. Understanding the roles of intrinsically disordered proteins in their formation and regulation can guide the design of novel drugs.

PROGRESS IN CHEMISTRY (2022)

Article Chemistry, Multidisciplinary

Plasma-Catalytic CO2 Hydrogenation over a Pd/ZnO Catalyst: In Situ Probing of Gas-Phase and Surface Reactions

Yuhai Sun, Junliang Wu, Yaolin Wang, Jingjing Li, Ni Wang, Jonathan Harding, Shengpeng Mo, Limin Chen, Peirong Chen, Mingli Fu, Daiqi Ye, Jun Huang, Xin Tu

Summary: The reaction pathways of plasma-enhanced catalytic CO2 hydrogenation were investigated in this study. Placing Pd/ZnO in a DBD reactor under plasma environment significantly improved the conversion of CO2 and the yield of CO. In the Plasma + ZnO system, CO2 splitting played an important role in the conversion of CO2.

JACS AU (2022)

Meeting Abstract Medicine, Research & Experimental

NONINVASIVE MONITORING OF LIVER ORGANOID DIFFERENTIATION WITH RAMAN SPECTROSCOPY

Giuseppe Pettinato, Mark F. Coughlan, Xuejun Zhang, Liming Chen, Maria Glyavina, Yuri N. Zakharov, Lei Zhang, Le Qiu, Robert A. Fisher, Lev T. Perelman

XENOTRANSPLANTATION (2021)

Article Medicine, Research & Experimental

m6A regulator-based methylation modification patterns characterized by distinct tumor microenvironment immune profiles in colon cancer

Wei Chong, Liang Shang, Jin Liu, Zhen Fang, Fengying Du, Hao Wu, Yang Liu, Zhe Wang, Yang Chen, Shengtao Jia, Liming Chen, Leping Li, Hao Chen

Summary: Recent studies have shown that m(6)A modification is significantly associated with TME diversity, and different m(6)A modification patterns in colon cancer are correlated with distinct clinical outcomes and biological pathways.

THERANOSTICS (2021)

Review Biochemistry & Molecular Biology

The Roles of Long Noncoding RNAs HNF1α-AS1 and HNF4α-AS1 in Drug Metabolism and Human Diseases

Liming Chen, Yifan Bao, Suzhen Jiang, Xiao-bo Zhong

NON-CODING RNA (2020)

暂无数据