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Farias JS, Santos KM, Lima NK, Cabral EV, Aires RS, Veras AC, Paixão AD, Vieira LD. Maternal endotoxemia induces renal collagen deposition in adult offspring: Role of NADPH oxidase/TGF-β1/MMP-2 signaling pathway. Arch Biochem Biophys 2020; 684:108306. [DOI: 10.1016/j.abb.2020.108306] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Revised: 02/13/2020] [Accepted: 02/16/2020] [Indexed: 01/19/2023]
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2
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Zhang DD, Wu YF, Chen WX, Xu Y, Liu SY, Luo HH, Jiang GM, Wu Y, Hu P. C-type natriuretic peptide attenuates renal osteodystrophy through inhibition of FGF-23/MAPK signaling. Exp Mol Med 2019; 51:1-18. [PMID: 31263178 PMCID: PMC6802631 DOI: 10.1038/s12276-019-0265-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2018] [Revised: 01/27/2019] [Accepted: 02/26/2019] [Indexed: 01/19/2023] Open
Abstract
Renal osteodystrophy (ROD) occurs as early as chronic kidney disease (CKD) stage 2 and seems ubiquitous in almost all pediatric patients with CKD stage 5. Fibroblast growth factor (FGF)-23, a bone-derived endocrine regulator of phosphate homeostasis, is overexpressed in CKD and disturbs osteoblast differentiation and matrix mineralization. In contrast, C-type natriuretic peptide (CNP) acts as a potent positive regulator of bone growth. In the present study, we infused CNP into uremic rats and observed whether CNP could attenuate ROD through the inhibition of FGF-23 cascades. In uremic rats, CNP administration significantly alleviated renal dysfunction, calcium phosphate metabolic disorders, hypovitaminosis D, secondary hyperparathyroidism, the decrease in bone turnover markers and retarded bone pathological progression. More importantly, within FGF-23/mitogen-activated protein kinase (MAPK) signaling, the fibroblast growth factor receptor-1, Klotho and alternative (STAT-1/phospho-STAT-1) elements were upregulated by CNP, whereas FGF-23, RAF-1/phospho-RAF-1, and downstream (ERK/phospho-ERK and P38/phospho-P38) elements were paradoxically underexpressed in bone tissue. Therefore, CNP exerts a therapeutic effect on ROD through inhibition of FGF-23/MAPK signaling at the RAF-1 level.
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Affiliation(s)
- Dong Dong Zhang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Yang Fang Wu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Wei Xia Chen
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Yao Xu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Si Yan Liu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Huang Huang Luo
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Guang Mei Jiang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Yue Wu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China
| | - Peng Hu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, 230022, Hefei, China.
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Nan L, Huang M, Lai W, Jia R, Zheng Y, Yang L, Xie Q, Peng W. Impacts of the serum containing total flavonoids of Ajuga on rat glomerular mesangial cells. Mol Med Rep 2017; 16:4895-4902. [PMID: 28791415 DOI: 10.3892/mmr.2017.7194] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2016] [Accepted: 06/06/2017] [Indexed: 11/06/2022] Open
Abstract
The aim of the current study was to investigate the impacts and possible mechanisms of total flavonoids of Ajuga (TFA) on glomerular mesangial cells (GMC) through in vitro observations of the impacts of TFA‑containing serum on GMC proliferation and extracellular matrix (ECM) secretion in lipopolysaccharides (LPS)‑induced rats. Rat GMC was cultured in vitro, using LPS to stimulate the proliferation of GMC and the secretion of ECM; meanwhile, TFA‑containing serum (TFA‑S) was used for the intervention. Methyl thiazolyl tetrazolium (MTT) assay was performed to test the proliferation of GMC; enzyme‑linked immunosorbent assay (ELISA) was used to detect the expressions of fibronectin (FN) and collagen IV (Col‑IV) in cell supernatant, flow cytometry was performed to detect the cell cycle, and reverse transcription-polymerase chain reaction was performed to detect the expression levels of matrix metalloproteinase 9 (MMP‑9) mRNA and transforming growth factor β1 (TGF‑β1) mRNA. The GMC proliferation and the expressions of FN and Col‑IV in cell supernatant were significantly reduced after 24 and 48 h TFA‑S intervention (P<0.05 or 0.01). A total of 48 h subsequent to the intervention, the proportion of GMC in the G1 phase and the relative expression of MMP‑9 mRNA were significantly increased (P<0.05 or 0.01), however the proportion of GMC in S phase and the relative expression of TGF‑β1 mRNA were significantly reduced (P<0.05 or 0.01). TFA‑S can inhibit LPS‑induced GMC proliferation and ECM accumulation, and its roles are associated with regulating the cell cycle and the expression levels of TGF‑β1 and MMP‑9.
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Affiliation(s)
- Lihong Nan
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Mei Huang
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Wenfang Lai
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Ru Jia
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Yanfang Zheng
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Lan Yang
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Qingqing Xie
- College of Pharmacy, School of Pharmacy, Fujian University of Traditional Chinese Medicine, Fuzhou, Fujian 350122, P.R. China
| | - Weihua Peng
- Department of Nephrology, Fuzhou General Hospital, Fuzhou, Fujian 350025, P.R. China
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4
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Chen X, Qin Y, Zhou T, Jiang L, Lei F, Qin H, Zhang L, Zhou Z. The potential role of retinoic acid receptor α on glomerulosclerosis in rats and podocytes injury is associated with the induction of MMP2 and MMP9. Acta Biochim Biophys Sin (Shanghai) 2017; 49:669-679. [PMID: 28645189 DOI: 10.1093/abbs/gmx066] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2017] [Indexed: 02/05/2023] Open
Abstract
Retinoic acid receptor α (RARα) plays a crucial role in kidney disease. However, the underlying mechanisms in glomerulosclerosis (GS) is still not clear. The roles of RARα in an adriamycin (ADR)-induced GS rat model and in ADR-induced podocyte injury in vitro were investigated. RARα was over-expressed in GS rats, and serum, urine and kidney samples were collected to detect the induction of the expression of the receptor. RARα expression was inhibited and/or over-expressed in cultured podocytes following injury, as demonstrated by morphometric assays, cell toxicity, and matrix metalloproteinase (MMP) enzymatic activity. RARα displayed a renoprotective role in GS rats, resulting in a lower GS index, podocyte foot process fusion, and proteinuria, reduced serum creatinine and blood urea nitrogen. Further experiments indicated that RARα inhibited the accumulation of TGF-β1, α-smooth muscle actin, collagen IV, and fibronectin, while it induced MMP2 and MMP9 excessive expression in podocytes in vitro. RARα improved the renal function and attenuated the progression of GS that was associated with the over-expression of MMP2 and MMP9.
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Affiliation(s)
- Xiuping Chen
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Yuanhan Qin
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Tianbiao Zhou
- Department of Nephrology, the Second Affiliated Hospital of Shantou University Medical College, Shantou 515041, China
| | - Ling Jiang
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Fengying Lei
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - He Qin
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Lei Zhang
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
| | - Zhiqiang Zhou
- Department of Pediatrics Nephrology, the First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China
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Chen XP, Qin YH. [Research advances in the protective effect of all-trans retinoic acid against podocyte injury]. ZHONGGUO DANG DAI ER KE ZA ZHI = CHINESE JOURNAL OF CONTEMPORARY PEDIATRICS 2017; 19:719-723. [PMID: 28606243 PMCID: PMC7390304 DOI: 10.7499/j.issn.1008-8830.2017.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/14/2016] [Accepted: 02/18/2017] [Indexed: 06/07/2023]
Abstract
All-trans retinoic acid (ATRA) is a vitamin A derivative and plays an important role in the regulation of cell aggregation, differentiation, apoptosis, proliferation, and inflammatory response. In recent years, some progress has been made in the role of ATRA in renal diseases, especially its protective effect on podocytes. This article reviews the research advances in podocyte injury, characteristics of ATRA, podocyte differentiation and regeneration induced by ATRA, and the protective effect of ATRA against proliferation, deposition of fibers, and apoptosis.
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Affiliation(s)
- Xiu-Ping Chen
- Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning 530021, China.
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Huang BY, Hu P, Zhang DD, Jiang GM, Liu SY, Xu Y, Wu YF, Xia X, Wang Y. C-type natriuretic peptide suppresses mesangial proliferation and matrix expression via a MMPs/TIMPs-independent pathway in vitro. J Recept Signal Transduct Res 2017; 37:355-364. [PMID: 28554303 DOI: 10.1080/10799893.2017.1286674] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Bao Yu Huang
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Peng Hu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Dong Dong Zhang
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Guang Mei Jiang
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Si Yan Liu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Yao Xu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Yang Fang Wu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Xun Xia
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, Hefei, PR China
| | - Ya Wang
- Anhui Provincial Children’s Hospital, Hefei, PR China
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7
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Cyp26 Enzymes Facilitate Second Heart Field Progenitor Addition and Maintenance of Ventricular Integrity. PLoS Biol 2016; 14:e2000504. [PMID: 27893754 PMCID: PMC5125711 DOI: 10.1371/journal.pbio.2000504] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Accepted: 10/28/2016] [Indexed: 11/19/2022] Open
Abstract
Although retinoic acid (RA) teratogenicity has been investigated for decades, the mechanisms underlying RA-induced outflow tract (OFT) malformations are not understood. Here, we show zebrafish embryos deficient for Cyp26a1 and Cyp26c1 enzymes, which promote RA degradation, have OFT defects resulting from two mechanisms: first, a failure of second heart field (SHF) progenitors to join the OFT, instead contributing to the pharyngeal arch arteries (PAAs), and second, a loss of first heart field (FHF) ventricular cardiomyocytes due to disrupted cell polarity and extrusion from the heart tube. Molecularly, excess RA signaling negatively regulates fibroblast growth factor 8a (fgf8a) expression and positively regulates matrix metalloproteinase 9 (mmp9) expression. Although restoring Fibroblast growth factor (FGF) signaling can partially rescue SHF addition in Cyp26 deficient embryos, attenuating matrix metalloproteinase (MMP) function can rescue both ventricular SHF addition and FHF integrity. These novel findings indicate a primary effect of RA-induced OFT defects is disruption of the extracellular environment, which compromises both SHF recruitment and FHF ventricular integrity. Retinoic acid (RA) is the most active metabolic product of vitamin A. The embryonic heart is particularly sensitive to inappropriate RA levels, with cardiac outflow tract (OFT) defects among the most common RA-induced malformations. However, the mechanisms underlying these RA-induced defects are not understood. Cyp26 enzymes facilitate degradation of RA and thus are required to limit RA levels in early development. Here, we present evidence that loss of Cyp26 enzymes induces cardiac OFT defects through two mechanisms. First, we find that Cyp26-deficient zebrafish embryos fail to add later-differentiating ventricular cardiac progenitors to the OFT, with some of these progenitors instead contributing to the nearby arch arteries. Second, Cyp26-deficient embryos cannot maintain the integrity of the nascent heart tube, with ventricular cells within the heart tube losing their polarity and being extruded. Our data indicate that excess expression of matrix metalloproteinase 9, an enzyme that degrades the extracellular matrix, underlies both the cardiac progenitor addition and heart tube integrity defects seen in Cyp26-deficient embryos. Our findings highlight perturbation of the extracellular matrix as a major cause of RA-induced cardiac OFT defects that specifically disrupt ventricular development at later stages than previously appreciated.
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Hu P, Xia X, Xuan Q, Huang BY, Liu SY, Zhang DD, Jiang GM, Xu Y, Qin YH. Neutral endopeptidase and natriuretic peptide receptors participate in the regulation of C-type natriuretic peptide expression in renal interstitial fibrosis. J Recept Signal Transduct Res 2016; 37:71-83. [PMID: 27278005 DOI: 10.3109/10799893.2016.1155068] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Peng Hu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Xun Xia
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Qiang Xuan
- Department of Urology, Anhui Provincial Hospital, Anhui Medical University, Hefei, People's Republic of China
| | - Bao Yu Huang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Si Yan Liu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Dong Dong Zhang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Guang Mei Jiang
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Yao Xu
- Department of Pediatrics, the First Affiliated Hospital of Anhui Medical University, Hefei, People's Republic of China
| | - Yuan Han Qin
- Department of Pediatrics, First Affiliated Hospital of Guangxi Medical University, Nanning, People's Republic of China
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Exogenous C-type natriuretic peptide infusion ameliorates unilateral ureteral obstruction-induced tubulointerstitial fibrosis in rats. J Transl Med 2015; 95:263-72. [PMID: 25437644 DOI: 10.1038/labinvest.2014.149] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2014] [Revised: 07/28/2014] [Accepted: 09/12/2014] [Indexed: 11/08/2022] Open
Abstract
Although many experimental therapeutic roles for C-type natriuretic peptide (CNP) have been documented in the field of cardiovascular and pulmonary-vascular disease, the therapeutic uses of CNP to nephropathies are not as well documented. In this study, we established a rat model of unilateral ureteral obstruction (UUO) to observe the beneficial effects of CNP on tubulointerstitial fibrosis (TIF). In UUO rats, CNP administration induced a significant increase in plasma CNP levels, and caused a significant decrease in blood urea nitrogen and creatinine levels. In addition, CNP infusion also alleviated the pathological lesions and collagen IV accumulation in the obstructed kidneys through downregulation of tissue inhibitor of metalloproteinase-1 (TIMP-1) and TIMP-2 expression. In conclusion, exogenous CNP infusion can ameliorate UUO-induced TIF in rats. However, the use of CNP as a therapeutic agent requires further evaluation before being considered for human TIF.
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Lengyel JNG, Park EY, Brunson AR, Pinali D, Lane MA. Phosphatidylinositol 3-kinase mediates the ability of retinol to decrease colorectal cancer cell invasion. Nutr Cancer 2014; 66:1352-61. [PMID: 25356626 DOI: 10.1080/01635581.2014.956258] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Previously, we showed that retinol (vitamin A) decreased both colorectal cancer cell invasion and phosphatidylinositol 3-kinase (PI3K) activity through a retinoic acid receptor-independent mechanism. Here, we determined if these phenomena were related by using parental HCT-116 cells that harbor 1 allele of wild-type PI3K and 1 allele of constitutively active (ca) PI3K and 2 mutant HCT-116 cell lines homozygous for caPI3K. In vitro, treatment of parental HCT-116 cells with 10 μM retinol reduced cell invasion whereas treatment of mutant HCT-116 cell lines with retinol did not. Treatment with 10 μM retinol also decreased the activity of matrixmetalloproteinase-9 and increased tissue inhibitor of matrixmetalloproteinase-I levels in parental, but not mutant, HCT-116 cells. Finally, parental or mutant cells were intrasplenically injected into athymic mice consuming diets with or without supplemental vitamin A. As expected, vitamin A supplementation tended (P = 0.18) to reduce the incidence of metastases in mice injected with the parental cell line and consuming the supplemented diet. In contrast, metastatic incidence was not affected (P = 1.00) by vitamin A supplementation in mice injected with mutant cells. These data indicate that the capacity of retinol to inhibit PI3K activity confers its ability to decrease colorectal cancer metastasis.
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Affiliation(s)
- Jennifer N Griffin Lengyel
- a School of Family and Consumer Sciences, Nutrition and Foods Program , Texas State University-San Marcos , San Marcos , Texas , USA
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Chen XP, Lei FY, Qin YH, Zhou TB, Jiang L, Zhao YJ, Huang WF, Peng QL. The role of retinoic acid receptors in the signal pathway of all-trans retinoic acid-induced differentiation in adriamycin-induced podocyte injury. J Recept Signal Transduct Res 2014; 34:484-92. [PMID: 24846581 DOI: 10.3109/10799893.2014.920394] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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12
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Lei FY, Zhou TB, Qin YH, Chen XP, Li ZY. Potential signal pathway of all-trans retinoic acid for MMP-2 and MMP-9 expression in injury podocyte induced by adriamycin. J Recept Signal Transduct Res 2014; 34:378-85. [PMID: 24694005 DOI: 10.3109/10799893.2014.904873] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
All-trans-retinoic acid (ATRA) can regulate some specific genes expression in various tissue and cells via nuclear retinoic acid receptors (RARs), including three subtypes: retinoic acid receptor-alpha (RAR-α), retinoic acid receptor-beta (RAR-β) and retinoic acid receptor-gamma (RAR-γ). Podocyte injury plays a pivotal role in the progression of glomerulosclerosis (GS). This study was performed to study the potential signal pathway of ATRA in the expression of matrix metalloproteinases-2 (MMP-2) and matrix metalloproteinases-9 (MMP-9) in injury podocyte. Cells were divided into three groups: group of negative control (NC), group of injury podocyte induced by adriamycin (ADR) (AI) and group of ADR inducing podocyte injury model treated with ATRA (AA). The cells morphology changes were detected using microscope and scanning electron microscopy. MMP-2 and MMP-9 enzymic activity was detected using the gelatin zymography method. Protein and mRNA expressions of MMP-2, MMP-9, RAR-α, RAR-β and RAR-γ were measured by western-blot and real-time RT-PCR. Enzymatic activity of MMP-2 and MMP-9 in group AA was significantly enhanced compared to AI group after ATRA-treated 24 h (p < 0.05). The protein and mRNA expressions of MMP-2/MMP-9 in group AA were significantly increased than those in group AI at both 12 and 24 h time points (p < 0.05). Compared to group AI, RAR-α and RAR-γ protein/mRNA expressions of group AA were significantly increased at both 12 and 24 h time points (p < 0.05). There was no difference for the expression of RAR-β between group AI and group AA (p > 0.05). RAR-α protein level was positively correlated with MMP-2 or MMP-9 protein expression (p < 0.05), and RAR-γ protein level was also positively correlated with MMP-2 or MMP-9 protein expression (p < 0.05). In conclusion, ATRA may increase expression of MMP-2 and MMP-9 by the potential signal pathway of RAR-α and RAR-γ in injury podocyte induced by adriamycin, but not RAR-β.
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Affiliation(s)
- Feng-Ying Lei
- Department of Pediatrics, The First Affiliated Hospital of GuangXi Medical University , NanNing , China and
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Ma Q, Zhang L, Yao L, Chen HP, Wang BE. Effects of herbal compound 861 on collagen synthesis and degradation in rat mesangial cells exposed to high glucose. Chin J Integr Med 2014; 20:209-15. [PMID: 24615213 DOI: 10.1007/s11655-014-1741-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2012] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To investigate the effects of Herbal Compound 861 (Cpd 861) on collagen synthesis and degradation in rat mesangial cells exposed to high glucose. METHODS The third to fifth passage of rat mesangial cells were exposed to high glucose and Cpd 861 at a concentration of 0.25-4.00 g/L for 24, 48 and 72 h, respectively. Benazepril (10(-7)-10(-3) mmol/L) was selected as positive control. The methyl thiazolyl tetrazolium colorimetric assay was used to evaluate the effect of Cpd 861 on cell proliferation. After incubation with Cpd 861 at a concentration of 2.00 g/L for 48 h, the protein secretions of collagen type IV, matrix metallopeptidase 9 (MMP-9), tissue inhibitor of metalloproteinase-1 (TIMP-1), transforming growth factor beta 1 (TGF-β1), and hepatocyte growth factor (HGF) were detected by enzyme-linked immunosorbent assay method. And rat mesangial cells were harvested to determine MMP-9, TIMP-1, TGF-β1 and HGF mRNA expression by reverse transcription polymerase chain reaction. RESULTS Cpd 861 inhibited cell proliferation induced by high glucose in a dose- and time-dependent manner. Compared with high glucose, collagen type IV production was decreased significantly by Cpd 861 (P<0.01). Cpd 861 increased the protein secretions and mRNA expressions of MMP-9 and HGF, whereas the protein secretions and mRNA expressions of TIMP-1 and TGF-β1 were reduced markedly (P<0.05). The ratio of MMP-9 to TIMP-1 was enhanced by Cpd 861 significantly. There was no significant difference in all above-mentioned effects between Cpd 861 (2.00 g/L) and benazepril (10(-5) mmol/L). CONCLUSION The anti-glomerulosclerosis mechanisms of Cpd 861 were partly attributed to its effects of inhibiting mesangial cell proliferation, decreasing collagen synthesis and enhancing collagen degradation.
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Affiliation(s)
- Qing Ma
- Department of Gerontology, Beijing Friendship Hospital, Capital Medical University, Beijing, 100050, China
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14
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Wang L, Wang J, Wang Y, Fu Q, Lei YH, Nie ZY, Qiu J, Bao TY. Protective effect of exogenous matrix metalloproteinase-9 on chronic renal failure. Exp Ther Med 2013; 7:329-334. [PMID: 24396399 PMCID: PMC3881041 DOI: 10.3892/etm.2013.1409] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2013] [Accepted: 09/30/2013] [Indexed: 01/04/2023] Open
Abstract
Matrix metalloproteinases (MMPs) and tissue inhibitors of metalloproteinases (TIMPs) have pivotal functions in extracellular matrix turnover and are involved in chronic kidney diseases. However, the exact functions of MMPs in chronic renal failure (CRF) have yet to be demonstrated. The aim of the present study was to examine the effects of MMP-9 on CRF. An adenine-induced model of CRF was generated in rabbits. Following the injection of MMP-9 into the renal arteries of the rabbits, significant improvements in renal morphology and serum levels of creatinine and urea nitrogen were observed. Furthermore, MMP-9 administration was shown to decrease the serum TIMP-1 concentration and upregulate renal MMP-9 expression. These results demonstrate a directly protective role for MMP-9 in CRF.
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Affiliation(s)
- Lei Wang
- Department of Urologic Surgery, Institute of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Jue Wang
- Department of Urologic Surgery, Institute of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yong Wang
- Department of Urologic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Qiang Fu
- Department of Urologic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Yong-Hua Lei
- Department of Urologic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Zhi-Yong Nie
- Department of Urologic Surgery, Tenth Hospital of PLA, Wuwei, Gansu 733000, P.R. China
| | - Jianxin Qiu
- Department of Urologic Surgery, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
| | - Ting-Yi Bao
- Department of Urologic Surgery, Institute of Infectious Diseases, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi 710038, P.R. China
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15
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Hu P, Zhao XQ, Wang J, Kong HB, Hu B, Lu L, Qin YH. Paradoxical expressions of natriuretic peptide receptor-C and neutral endopeptidase account for C-type natriuretic peptide decline during the progression of experimental obstructive nephropathy. J Renin Angiotensin Aldosterone Syst 2013; 15:458-65. [PMID: 24189506 DOI: 10.1177/1470320313507121] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Affiliation(s)
- Peng Hu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Xue Qi Zhao
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Jing Wang
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Hai Bo Kong
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Bo Hu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Ling Lu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, China
| | - Yuan Han Qin
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, China
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Zhou TB, Wu WF, Qin YH, Yin SS. Association of all-trans retinoic acid treatment with the renin-angiotensin aldosterone system expression in glomerulosclerosis rats. J Renin Angiotensin Aldosterone Syst 2012; 14:299-307. [PMID: 23144044 DOI: 10.1177/1470320312465220] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023] Open
Abstract
BACKGROUND AND OBJECTIVE All-trans retinoic acid (ATRA), a promising therapeutic agent, has been confirmed in animal experiments as playing a protective role against renal diseases. The renin-angiotensin aldosterone system (RAAS) plays a key role in the pathogenesis of renal diseases, and RAAS inhibitors can prevent the progression of kidney diseases. In our previous study, we found that ATRA could play a protective role against glomerulosclerosis (GS) lesions in rats, and its effect was similar to RAAS inhibitors. However, whether ATRA treatment was associated with RAAS expression was not clear. METHODS Six-week-old male Wistar rats were divided into three groups: sham operation group (SHO), glomerulosclerosis model group without treatment (GS) and GS model group treated with ATRA (GA). At the end of 13 weeks, the relevant samples were collected and analyzed. RESULTS The mRNA and protein expression of angiotensin-converting enzyme 1 (ACE1) in the GS group was notably higher when compared with the SHO group. However, mRNA and protein expression of ACE1 in the ATRA treatment group was markedly down-regulated when compared with the GS group. Angiotensin-converting enzyme 2 (ACE2) expression (mRNA or protein) in the GS group was reduced compared with that in the SHO group, and ATRA markedly increased the mRNA and protein expression of ACE2 compared with the GS group. The levels of protein expression of angiotensin I and angiotensin II were significantly up-regulated in the GS group compared with those in the SHO group, and ATRA reduced their expression in the GA group when compared with the GS group. CONCLUSION ATRA is associated with RAAS expression in GS rats, but its detailed mechanism needs to be elucidated by further research.
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Affiliation(s)
- Tian-Biao Zhou
- 1Department of Pediatric Nephrology, The First Affiliated Hospital of GuangXi Medical University, Nanning, Guangxi, China
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Hu P, Wang J, Zhao XQ, Hu B, Lu L, Qin YH. Overexpressed C-type natriuretic peptide serves as an early compensatory response to counteract extracellular matrix remodeling in unilateral ureteral obstruction rats. Mol Biol Rep 2012; 40:1429-41. [PMID: 23073778 DOI: 10.1007/s11033-012-2186-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Accepted: 10/09/2012] [Indexed: 01/20/2023]
Abstract
Although the mechanism underlying C-type natriuretic peptide (CNP) beneficial effects is not entirely understood, modulating the expression of matrix metalloproteinases (MMPs)/tissue inhibitors of metalloproteinases (TIMPs) may play an important role. The study presented herein was designed as a first demonstration of the regulative effects of CNP on MMPs/TIMPs expression in unilateral ureteral obstruction (UUO) rats. The continuous changes of CNP, MMP-2, MMP-9, TIMP-1, TIMP-2 and type IV collagen (Col-IV) expression were determined in the obstructed rat kidneys at 3 days, 1, 2, and 3 months post-UUO respectively. According to the real-time PCR analysis, CNP, MMP-2 and MMP-9 mRNA expression in the obstructed kidneys were significantly higher compared to every time corresponding SOR, and progressively decreased over time. In contrast, in the obstructed kidneys collected 2 and 3 months post-UUO, the higher TIMP-1 and TIMP-2 mRNA expression were observed in comparison to the corresponding SOR group. The above trends of CNP, MMP-2, MMP-9, TIMP-1, and TIMP-2 transcripts were confirmed by their protein expression based on immunohistochemistry and western blot, and finally contributed to the progressive elevated Col-IV expression in the obstructed kidneys throughout the entire study period. Overexpressed CNP may be an early compensatory response to counteract extracellular matrix remodeling in UUO rats.
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Affiliation(s)
- Peng Hu
- Department of Pediatrics, The First Affiliated Hospital of Anhui Medical University, No. 218 Ji-Xi Road, Hefei, 230022, People's Republic of China.
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Yan Q, Sui W, Wang B, Zou H, Zou G, Luo H. Expression of MMP-2 and TIMP-1 in renal tissue of patients with chronic active antibody-mediated renal graft rejection. Diagn Pathol 2012; 7:141. [PMID: 23057632 PMCID: PMC3539883 DOI: 10.1186/1746-1596-7-141] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2012] [Accepted: 09/13/2012] [Indexed: 01/15/2023] Open
Abstract
Objective To investigate the expression of matrix metalloproteinase-2 (MMP-2) and tissue inhibitor of metallopropteinase-1 (TIMP-1) in the renal allografts of patients with chronic active antibody-mediated rejection (AMR), and to explore their role in the pathogenesis of AMR. Methods Immunohistochemistry assay and computer-assisted image analysis were used to detect the expression of MMP-2 and TIMP-1 in the renal allografts with interstitial fibrosis and tubular atrophy (IF/TA) in 46 transplant recipients and 15 normal renal tissue specimens as the controls. The association of the expression level of either MMP-2 or TIMP-1 with the pathological grade of IF/TA in AMR was analyzed. Results The expression of either MMP-2 or TIMP-1 was significantly increased in the renal allografts of the recipients as compared with the normal renal tissue (P < 0.05). MMP-2 expression tended to decrease, while TIMP-1 and serum creatinine increased along with the increase of pathological grade of IF/TA (P < 0.05). In IF/TA groups, the expression of TIMP-1 was positively correlated to serum creatinine level (r = 0.718, P < 0.05). Conclusions It is suggested by the results that abnormal expressions of MMP-2 and TIMP-1 might play roles in the development of renal fibrosis in chronic AMR. Virtual Slides The virtual slide(s) for this article can be found here:
http://www.diagnosticpathology.diagnomx.eu/vs/1128474926172838
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Affiliation(s)
- Qiang Yan
- Dialysis and Kidney Transplantation Center of PLA, 181 Hospital of PLA, Guilin 541002, China
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Zhou TB, Qin YH. The potential mechanism for the different expressions of gelatinases induced by all-trans retinoic acid in different cells. J Recept Signal Transduct Res 2012; 32:129-33. [PMID: 22475041 DOI: 10.3109/10799893.2012.672992] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Gelatinases include matrix metalloproteinase-2 (MMP-2) and matrix metalloproteinase-9 (MMP-9). The increased expressions of gelatinases are implicated in the pathogenesis of cell injury and cell death. All-trans retinoic acid (ATRA) is an import biological agent which can regulate the expressions of gelatinases and take part in cell injury and cell death. ATRA exerts its biological effect by the high-affinity binding to retinoic acid receptors (RARs). The RARs consist of three isoforms: RAR-α, RAR-β and RAR-γ. However, it is interesting that the effect of ATRA on the expressions of gelatinases is different in different cells. There is no report to explore the possible mechanism for it at present. In this context, we review the published reports and draw a hypothesis that: (i) The distributions of RARs isoforms are different in different cells; (ii) ATRA activates the different RARs isoforms in different cells; (iii) The roles of different RARs isoforms for regulating the expression of MMP-2 or MMP-9 are different in different cells. So, ATRA takes a different function on the expressions of MMP-2 and MMP-9 in different cells. Once the potential strategy can be successfully confirmed, it would be prone to comprehend why the ATRA regulates the different expressions of gelatinases in different cells.
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Affiliation(s)
- Tian-Biao Zhou
- Department of Pediatrics, The First Affiliated Hospital of GuangXi Medical University, Nan Ning, China.
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Zhou TB, Qin YH, Lei FY, Su LN, Zhao YJ, Huang WF. apoE expression in glomerulus and correlation with glomerulosclerosis induced by adriamycin in rats. Ren Fail 2011; 33:348-54. [PMID: 21401362 DOI: 10.3109/0886022x.2011.559680] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Lipid deposition in glomerulus plays an important role in the progression of glomerulosclerosis (GS), and apolipoprotein E (apoE) is an important protein in cholesterol homeostasis. This investigation was performed to explore whether there exists an association between apoE and GS susceptibility. Eighty Wistar rats were randomly divided into two groups: sham operation group and glomerulosclerosis model group, n = 40. The GS disease in rat was induced by uninephrectomy and injecting adriamycin (5 mg/kg) through the tail vein. At the end of 9 and 13 weeks, 20 rats in each group were killed and the relative samples were collected. Serum creatinine, blood urea nitrogen, and 24-h urine protein were determined. Immunohistochemical analysis was performed on renal tissue to detect the expression of apoE, collagen IV, fibronectin, α-smooth muscle actin, and transforming growth factor-β1 in glomerulus. Real-time reverse transcription polymerase chain reaction was conducted to detect the apoE mRNA expression in renal tissue. Compared with sham operation group at the end of 9/13 weeks, glomerulosclerosis model group exhibited levels of serum creatinine, blood urea nitrogen, 24-h urine protein, and a glomerulosclerosis index that were significantly elevated ( p < 0.01), and collagen IV, fibronectin, α-smooth muscle actin, and transforming growth factor-β1 protein expression and apoE expression (protein and mRNA) were significantly upregulated (p < 0.01). In conclusion, apoE can increase the accumulation of extracellular matrix in glomerulus and may take part in the progression of GS.
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Affiliation(s)
- Tian-Biao Zhou
- Department of Pediatrics, The First Affiliated Hospital of Guangxi Medical University, Nanning, Guangxi, PR China
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All-trans retinoic acid regulates the expression of apolipoprotein E in rats with glomerulosclerosis induced by Adriamycin. Exp Mol Pathol 2011; 90:287-94. [PMID: 21385580 DOI: 10.1016/j.yexmp.2011.03.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2010] [Revised: 03/01/2011] [Accepted: 03/01/2011] [Indexed: 01/06/2023]
Abstract
Apolipoprotein E (apoE) is an important plasma protein in cholesterol homeostasis and plays a key role in the progression of glomerulosclerosis (GS). We conducted this investigation to explore whether all-trans retinoic acid (ATRA) could regulate the apoE expression in the pathological process of GS. 120 Wistar rats were divided into three groups at random: sham operation group (SHO), glomerulosclerosis model group without treatment (GS), GS model group treated with ATRA (GA); n=40, respectively. The disease of GS in rat was established by uninephrectomy and adriamycin (5mg/kg) injection. At the end of 9 and 13 weeks, 20 rats in each group were killed and the relevant samples were collected. 24-hour urine total protein (24UTP), 24-hour urine excretion for albumin (24Ualb), serum total protein (TP) and serum albumin (Alb), blood urea nitrogen (BUN), serum creatinine (Scr), total cholesterol (TC), triglyceride (TG), high-density lipoprotein (HDL), low-density lipoprotein (LDL), serum and urine apoE and glomerulosclerosis index (GSI) were measured. The protein expressions of collagen IV (Col-IV), fibronectin (FN) and apoE in glomeruli were determined by immunohistochemistry. Real-time reverse transcription polymerase chain reaction (real-time RT-PCR) was used to detect the expression of apoE mRNA in kidney. TP and Alb in GA group in 9/13-week were increased than those of GS group, however, the differences were not statistically significant. Compared with group GS at 9/13 weeks, values of 24UTP, 24Ualb, BUN, Scr, TC, TG, HDL, LDL, serum and urine apoE, and GSI in GA group that were significantly reduced, and protein expressions of Col-IV, FN and apoE in glomeruli and expression of apoE mRNA in renal tissue were significantly down-regulated by ATRA (P<0.01). In conclusion, ATRA can regulate the expression of apoE, reduce the accumulation of extracellular matrix (ECM) and step down the progression of GS.
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QIN YUANHAN, ZHOU TIANBIAO, LEI FENGYING, HUANG WEIFANG, ZHAO YANJUN, LIN FAQUAN, SU LINA. Cut-off values for serum matrix metalloproteinase-9: Is there a threshold to predict renal involvement for Henoch-Schonlein purpura in children? Nephrology (Carlton) 2010; 16:93-9. [PMID: 21175984 DOI: 10.1111/j.1440-1797.2010.01360.x] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Zou Z, Ocaya PA, Sun H, Kuhnert F, Stuhlmann H. Targeted Vezf1-null mutation impairs vascular structure formation during embryonic stem cell differentiation. Arterioscler Thromb Vasc Biol 2010; 30:1378-88. [PMID: 20431070 DOI: 10.1161/atvbaha.109.200428] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
OBJECTIVE Vezf1 encodes an early zinc finger transcription factor that is essential for normal vascular development and functions in a dose-dependent manner. Here, we investigated the role of Vezf1 during processes of endothelial cell differentiation and maturation by studying mutant Vezf1 embryonic stem (ES) cells using the in vitro embryoid body differentiation model and the in vivo teratocarcinoma model. METHODS AND RESULTS Vezf1-/- ES cell-derived embryoid bodies failed to form a well-organized vascular network and showed dramatic vascular sprouting defects. Our results indicate that the retinol pathway is an important mediator of Vezf1 function and that loss of Vezf1 results in reduced retinol/vitamin A signaling and aberrant extracellular matrix (ECM) formation. Unexpectedly, we also uncovered defects during in vitro differentiation of Vezf1-/- ES cells along hematopoietic cell lineages. Vezf1-/- ES cell-derived teratocarcinomas were able to spontaneously differentiate into cell types of all 3 germ layers. However, histological and immunohistochemical examination of these tumors showed decreased cell proliferation, delayed differentiation, and large foci of cells with extensive deposition of ECM. Embryoid bodies and teratocarcinomas derived from heterozygous ES cells displayed an intermediate phenotype. CONCLUSIONS Together, these results suggest that Vezf1 is involved in early differentiation processes of the vasculature by regulating cell differentiation, proliferation, and ECM distribution and deposition.
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Affiliation(s)
- Zhongmin Zou
- Department of Cell Biology, Scripps Research Institute, La Jolla, CA, USA
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