1
|
Affiliation(s)
- Tao Wang
- Department of Nephrology, 1st Affiliated Hospital, Sun Yat-sen University of Medical Sciences, Guangzhou, P.R. China
- Divisions of Baxter Novum and Renal Medicine, Karolinska Institute, Huddinge University Hospital, Sweden
| | - Bengt Lindholm
- Divisions of Baxter Novum and Renal Medicine, Karolinska Institute, Huddinge University Hospital, Sweden
| |
Collapse
|
2
|
Ha H, Cha MK, Choi HN, Lee HB. Effects of Peritoneal Dialysis Solutions on the Secretion of Growth Factors and Extracellular Matrix Proteins by Human Peritoneal Mesothelial Cells. Perit Dial Int 2020. [DOI: 10.1177/089686080202200202] [Citation(s) in RCA: 71] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
♦ Objective To compare the effects of different peritoneal dialysis solutions (PDS) on secretion of vascular endothelial growth factor (VEGF), transforming growth factor-β1 (TGFβ1), procollagen I C-terminal peptide (PICP), procollagen III N-terminal peptide (PIIINP), and fibronectin by cultured human peritoneal mesothelial cells (HPMC). ♦ Design Using M199 culture medium as control, commercial PDS containing 1.5% or 4.25% glucose and 40 mmol/L lactate [Dianeal 1.5 (D 1.5) and Dianeal 4.25 (D 4.25), respectively; Baxter Healthcare, Deerfield, Illinois, USA]; PDS containing 1.5% or 4.25% glucose with 25 mmol/L bicarbonate and 15 mmol/L lactate [Physioneal 1.5 (P 1.5) and Physioneal 4.25 (P 4.25), respectively; Baxter]; and PDS containing 7.5% icodextrin [Extraneal (E); Baxter] were tested. Growth-arrested and synchronized HPMC were continuously stimulated for 48 hours by test PDS diluted twofold with M199, TGFβ1 1 ng/mL, or different concentrations of icodextrin. VEGF, TGFβ1, and fibronectin secreted into the media were analyzed by ELISA, and PICP and PIIINP by radioimmunoassay. ♦ Results Dianeal 1.5, D 4.25, and P 4.25, but not P 1.5 and E, significantly increased VEGF secretion compared with control M199. D 4.25- and P 4.25-induced VEGF secretion was significantly higher than induction by D 1.5 and P 1.5, respectively, suggesting that high glucose may be involved in the induction of VEGF. Physioneal 1.5- and P 4.25-induced VEGF secretion was significantly lower than induction by D 1.5 and D 4.25, respectively, suggesting a role for glucose degradation products (GDP) in VEGF production. TGFβ1 secretion was significantly increased by D 4.25 and E. Icodextrin increased TGFβ1 secretion in a dose-dependent manner. All PDS tested significantly increased secretion of PIIINP compared with control. D 1.5- and D 4.25-induced PIIINP secretion was significantly higher than P 1.5, P 4.25, and E. Physioneal 4.25-induced PIIINP secretion was significantly higher than P 1.5, again implicating high glucose and GDP in PIIINP secretion by HPMC. There was no significant increase in PICP or fibronectin secretion using any of the PDS tested. Addition of TGFβ1 1 ng/mL into M199 control significantly increased VEGF, PICP, PIIINP, and fibronectin secretion by HPMC. ♦ Conclusions The present study provides direct evidence that HPMC can secrete VEGF, TGFβ1, and PIIINP in response to PDS, and that HPMC may be actively involved in the development and progression of the peritoneal membrane hyperpermeability and fibrosis observed in long-term PD patients. This study also suggests that both high glucose and GDP in PDS may play important roles in inducing VEGF and PIIINP production/secretion by HPMC.
Collapse
Affiliation(s)
- Hunjoo Ha
- Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul
| | | | - Hoo Nam Choi
- Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul
| | - Hi Bahl Lee
- Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul
| |
Collapse
|
3
|
Hirahara I, Kusano E, Yanagiba S, Miyata Y, Ando Y, Muto S, Asano Y. Peritoneal Injury by Methylglyoxal in Peritoneal Dialysis. Perit Dial Int 2020. [DOI: 10.1177/089686080602600317] [Citation(s) in RCA: 46] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Background Peritoneal dialysis (PD) is a common treatment for patients with reduced or absent renal function. Long-term PD leads to peritoneal injury with structural changes and functional decline, such as ultrafiltration loss. At worst, peritoneal injury leads to encapsulating peritoneal sclerosis, a serious complication of PD. Glucose degradation products contained in PD fluids contribute to the bioincompatibility of conventional PD fluids. Methylglyoxal (MGO) is an extremely toxic glucose degradation product. The present study examined the injurious effect of MGO on peritoneum in vivo. Methods Male Sprague–Dawley rats ( n = 6) were administered PD fluids (pH 5.0) containing 0, 0.66, 2, 6.6, or 20 mmol/L MGO every day for 21 days. On day 22, peritoneal function was estimated by the peritoneal equilibration test. Drained dialysate was analyzed for type IV collagen-7S, matrix metalloproteinase (MMP), and vascular endothelial growth factor (VEGF). Histological analysis was also performed. Results In rats receiving PD fluids containing more than 0.66 mmol/L MGO, peritoneal function decreased significantly and levels of type IV collagen-7S and MMP-2 in drained dialysate increased significantly. In the 20-mmol/L MGO-treated rats, loss of body weight, expression of VEGF, thickening of the peritoneum, and formation of abdominal cocoon were induced. MMP-2 and VEGF were produced by infiltrating cells in the peritoneum. Type IV collagen was detected in basement membrane of microvessels. Conclusion MGO induced not only peritoneal injury but also abdominal cocoon formation in vivo. The decline of peritoneal function may result from reconstitution of microvessel basement membrane or neovascularization.
Collapse
Affiliation(s)
- Ichiro Hirahara
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Eiji Kusano
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Satoru Yanagiba
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Yukio Miyata
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Yasuhiro Ando
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Shigeaki Muto
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| | - Yasushi Asano
- Department of Nephrology, Jichi Medical School, Kawachi-gun, Tochigi, Japan
| |
Collapse
|
4
|
Kihm LP, Müller-Krebs S, Holoch S, Schmuck S, Becker LE, Brownlee M, Zeier M, Fleming TH, Nawroth PP, Schwenger V. Increased peritoneal damage in glyoxalase 1 knock-down mice treated with peritoneal dialysis. Nephrol Dial Transplant 2014; 30:401-9. [PMID: 25387474 DOI: 10.1093/ndt/gfu346] [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: 01/17/2023] Open
Abstract
BACKGROUND Peritoneal dialysis (PD) is limited by peritoneal fibrosis and ultrafiltration failure. This is in part caused by the high concentration of glucose degradation products (GDPs) present in PD fluids (PDF) as a consequence of heat sterilization. Existing research in long-term PD has mainly dealt with the toxicity induced by GDPs and the development of therapeutic strategies to reduce the cellular burden of GDPs. Currently, there are few data regarding the potential role of detoxification systems of GDP in PD. In this study, the role of glyoxalase 1 (Glo1), the major detoxification pathway for dicarbonyl-derived GD such as methylglyoxal (MG) and glyoxal (Gx), was investigated in vivo using heterozygous knock-down mice for Glo1 (Glo1(-/+)). METHODS Wild-type (WT) and Glo1(-/+) mice were repeatedly treated with PDF containing low and high amounts of GDP, particularly with respect to the content of dicarbonyls. After 12 weeks of treatment with PDF, peritoneal damage and function were evaluated. RESULTS Glo1(-/+) mice treated with PDF showed increased formation of advanced glycation endproduct (AGE) when compared with WT mice, particularly the Gx-derived AGE, carboxymethyl-lysine. This was associated with increased inflammation, neovascularization, increased peritoneal fibrosis and impaired peritoneal function. CONCLUSIONS This study suggests a pivotal and underestimated role for Glo1 as a detoxifying enzyme in GDP-associated peritoneal toxicity in PD. The indirect and direct modulation of Glo1 may therefore offer a new therapeutic option in prevention of GDP-induced peritoneal damage in PD.
Collapse
Affiliation(s)
- Lars P Kihm
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany Department of Internal Medicine I and Clinical Chemistry, University of Heidelberg, Heidelberg, Germany
| | | | - Sandra Holoch
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Svenja Schmuck
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Luis E Becker
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Michael Brownlee
- Department of Medicine, Albert Einstein College of Medicine, Bronx, NY, USA
| | - Martin Zeier
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| | - Thomas H Fleming
- Department of Internal Medicine I and Clinical Chemistry, University of Heidelberg, Heidelberg, Germany
| | - Peter P Nawroth
- Department of Internal Medicine I and Clinical Chemistry, University of Heidelberg, Heidelberg, Germany
| | - Vedat Schwenger
- Department of Nephrology, University of Heidelberg, Heidelberg, Germany
| |
Collapse
|
5
|
McLoughlin RM, Topley N. Switching on EMT in the peritoneal membrane: considering the evidence. Nephrol Dial Transplant 2010; 26:12-5. [PMID: 21068140 DOI: 10.1093/ndt/gfq699] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
6
|
Ebinç FA, Derici U, Gönen S, Reis KA, Erten Y, Bali M, Sindel Ş, Arinsoy T. TGF-β1 Gene Polymorphisms and Peritoneal Equilibration Test Results in CAPD Patients. Ren Fail 2009; 30:15-9. [DOI: 10.1080/08860220701741684] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022] Open
|
7
|
Kaifu K, Kiyomoto H, Hitomi H, Matsubara K, Hara T, Moriwaki K, Ihara G, Fujita Y, Sugasawa N, Nagata D, Nishiyama A, Kohno M. Insulin attenuates apoptosis induced by high glucose via the PI3-kinase/Akt pathway in rat peritoneal mesothelial cells. Nephrol Dial Transplant 2008; 24:809-15. [DOI: 10.1093/ndt/gfn598] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
8
|
Liberek T. The New Dialysis Fluids — Which Buffer to Choose? Perit Dial Int 2006. [DOI: 10.1177/089686080602600606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Tomasz Liberek
- Department of Nephrology, Transplantology and Internal Medicine Medical University of Gdansk Gdansk, Poland
| |
Collapse
|
9
|
Morgera S, Schlenstedt J, Hambach P, Giessing M, Deger S, Hocher B, Neumayer HH. Combined ETA/ETB receptor blockade of human peritoneal mesothelial cells inhibits collagen I RNA synthesis. Kidney Int 2003; 64:2033-40. [PMID: 14633125 DOI: 10.1046/j.1523-1755.2003.00320.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
BACKGROUND Peritoneal fibrosis is a serious complication of peritoneal dialysis; however, the mechanisms are poorly understood. We studied osmolarity and physical stress-induced effects on collagen I RNA synthesis in human peritoneal mesothelial cells (HPMCs) and focused on endothelin as a possible mediator. METHODS HPMCs were grown in a medium containing either d-glucose or glycerol to analyze the impact of osmolarity on mesothelial endothelin-1 (ET-1) release and on collagen I RNA synthesis [reverse transcription-polymerase chain reaction (RT-PCR)]. A cellular model of nonlaminar fluid shear stress and cellular stretch was used to analyze the effects of physical forces. To neutralize the endothelin effects, a combined ETA/ETB receptor antagonist (LU 302 872) was chosen. RESULTS Glucose, but not glycerol, increased mesothelial ET-1 release in a concentration and time-dependent manner (P < 0.05 vs. controls). Collagen I RNA synthesis was significantly higher in glucose-challenged cell cultures (P < 0.05 vs. controls). The glucose-mediated collagen I RNA synthesis was completely inhibited by adding the combined ETA/ETB receptor antagonist to the medium. Fluid shear stress, but not cellular stretch, led to a significant increase in the mesothelial ET-1 release (P < 0.005 vs. controls) and collagen I RNA synthesis (P < 0.05 vs. controls). LU 302 872 completely inhibited these effects. CONCLUSION We found that glucose and fluid shear stress are potent stimuli for ET-1 release and collagen I RNA synthesis in a model cellular system. Although our system is highly artificial, our findings raise the hypothesis that similar effects may occur in the peritoneal membranes of peritoneal dialysis patients and suggest that endothelin might be involved.
Collapse
Affiliation(s)
- Stanislao Morgera
- Department of Nephrology, Charité, Humboldt University of Berlin, Berlin, Germany.
| | | | | | | | | | | | | |
Collapse
|
10
|
|
11
|
Abstract
Diabetic nephropathy is the leading cause of end-stage renal disease worldwide. Although death rates of diabetic patients on hemodialysis and peritoneal dialysis (PD) have decreased substantially, they remain higher than rates in nondiabetics on both modalities. PD offers equal or better survival than hemodialysis for younger diabetic patients during early years of dialysis. PD technique survival does not appear different between diabetic and nondiabetic patients but is inferior to hemodialysis technique survival. PD may accelerate changes in peritoneal membrane structure and function in diabetics. Peritonitis and conventional PD solutions containing high glucose and glucose degradation products are implicated in PD technique failure. Increased peritoneal expression of vascular endothelial growth factor and transforming growth factor-beta1 and excessive accumulation of advanced glycosylation end products may be involved in the progressive increase in membrane permeability, loss of ultrafiltration, and peritoneal fibrosis. Nonglucose PD solutions or solutions containing low glucose degradation products may prevent or delay alterations in peritoneal membrane structure and function in diabetic as well as nondiabetic patients during long-term PD.
Collapse
Affiliation(s)
- H B Lee
- Hyonam Kidney Laboratory, Soon Chun Hyang University, Seoul, Korea.
| | | | | | | | | |
Collapse
|