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Chen L, Brenner DA, Kisseleva T. Combatting Fibrosis: Exosome-Based Therapies in the Regression of Liver Fibrosis. Hepatol Commun 2018; 3:180-192. [PMID: 30766956 PMCID: PMC6357832 DOI: 10.1002/hep4.1290] [Citation(s) in RCA: 61] [Impact Index Per Article: 10.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/07/2018] [Accepted: 10/24/2018] [Indexed: 12/14/2022] Open
Abstract
Hepatic fibrosis results from chronic injury and inflammation in the liver and leads to cirrhosis, liver failure, and portal hypertension. Understanding the molecular mechanisms underlying hepatic fibrosis has advanced the prospect of developing therapies for regression of the disease. Resolution of fibrosis requires a reduction of proinflammatory and fibrogenic cytokines, a decrease in extracellular matrix (ECM) protein production, an increase in collagenase activity, and finally, a disappearance of activated myofibroblasts. Exosomes are nanovesicles of endocytic origin secreted by most cell types. They epigenetically reprogram and alter the phenotype of their recipient cells and hold great promise for the reversal of fibrosis. Recent studies have shown that exosomes function as conduits for intercellular transfer and contain all the necessary components to induce resolution of fibrosis, including the ability to (1) inhibit macrophage activation and cytokine secretion, (2) remodel ECM production and decrease fibrous scars, and (3) inactivate hepatic stellate cells, a major myofibroblast population. Here, we discuss the research involving the regression of hepatic fibrosis. We focus on the newly discovered roles of exosomes during fibrogenesis and as a therapy for fibrosis reversal. We also emphasize the novel discoveries of exosome‐based antifibrotic treatments in vitro and in vivo.
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Affiliation(s)
- Li Chen
- Department of Medicine University of California San Diego La Jolla CA
| | - David A Brenner
- Department of Medicine University of California San Diego La Jolla CA
| | - Tatiana Kisseleva
- Department of Surgery University of California San Diego La Jolla CA
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152
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Li J, Yu YF, Liu CH, Wang CM. Significance of M2 macrophage in tubulointerstitial disease secondary to primary Sjogren's disease. Ren Fail 2018; 40:634-639. [PMID: 30396309 PMCID: PMC6225512 DOI: 10.1080/0886022x.2018.1518242] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Objective: M2 Macrophages could improve tubulointerstitial disease in animal models. HIF-1αpromotes macrophage polarization and is involved in tubular injury. The study aims to observe the clinicopathologic significance of M2 macrophage and HIF-1α in tubulointerstitial injury secondary to primary Sjogren's disease. Methods: Renal tissue samples from patients with tubulointerstitial disease secondary to primary Sjogren's disease (SS, n = 10), chronic tubulointerstitial nephritis secondary to drug (CIN, n = 8) were included in this study. The expression of CD163, CD68 and HIF-1α were examined by immunohistochemistry or immunofluorescence. Results: (1) Renal involvement was the first manifestation in seven of ten (7/10) patients with pSS, including proteinuria, renal dysfunction, renal tubular acidosis and multiple renal stone; and two patient had intractable hypokalemia. (2) There were numerous CD163- positive cells and CD68- positive cells infiltration in tubulointerstitial injury of pSS, especially in patients with hypokalemia. CD163 positive cells and HIF-1αwere mainly expressed in acute tubulointerstitial injury of pSS, which positively correlated to N-acetyl-β-D-glucosaminidase and β2-microglobulin. (3) Compared with CIN, patients with pSS had higher serum globulin level, erythrocyte sedimentation rate (ESR) and lower urinary osmotic pressure. (4) During follow-up of one year, six patients with pSS and acute tubular injury acquired improved renal function on therapy of steroid and total glucosides of peony. The remaining four patients with pSS had stable renal function. Conclusion: M2 macrophages are involved in acute tubular injury in patients with primary Sjogren's disease. Early intervention can improve renal function of tubulointerstitial injury secondary to primary Sjogren's disease.
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Affiliation(s)
- Jun Li
- a Wuxi School of Medicine , Jiangnan University , Wuxi , China.,b Department of Nephrology , The Affiliated Hospital of Jiangnan University , Wuxi , China
| | - Ya-Fen Yu
- b Department of Nephrology , The Affiliated Hospital of Jiangnan University , Wuxi , China
| | - Chang-Hua Liu
- c Department of Nephrology , Clinical Medical College, Yangzhou University , Yangzhou , China
| | - Cui-Mei Wang
- c Department of Nephrology , Clinical Medical College, Yangzhou University , Yangzhou , China
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153
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Coelho S, Cabral G, Lopes JA, Jacinto A. Renal regeneration after acute kidney injury. Nephrology (Carlton) 2018; 23:805-814. [PMID: 29575280 DOI: 10.1111/nep.13256] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/13/2018] [Indexed: 12/28/2022]
Abstract
Acute kidney injury is common and associated with negative renal and patient outcomes. The human kidney has a real but limited regeneration capacity. Understanding renal regeneration may allow us to manipulate this process and thus develop therapeutic weapons to improve patients' outcome. In the first part of this paper we discuss the clinical factors associated with renal recovery: baseline patient particularities, acute kidney injury characteristics and the medical approach taken in the short and long-term. In the second part, the cellular and molecular mechanisms underlying renal regeneration are explored. The immune system seems to have an important role, first promoting inflammation and then tissue healing. Other players, such as cellular senescence, mitochondrial dysfunction, renal haemodynamics and metabolic reprogramming also have a role in renal regeneration. We aim to develop a short review of renal regeneration, offering a holistic view of this process.
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Affiliation(s)
- Silvia Coelho
- Intensive Care Department, Hospital Fernando Fonseca, EPE, Amadora, Portugal.,CEDOC - Chronic Diseases Research Center, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal
| | - Guadalupe Cabral
- CEDOC - Chronic Diseases Research Center, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal
| | - José A Lopes
- Division of Nephrology and Renal Transplantation, Department of Medicine Centro Hospitalar Lisboa Norte, EPE, Lisbon, Portugal
| | - António Jacinto
- CEDOC - Chronic Diseases Research Center, NOVA Medical School, NOVA University of Lisbon, Lisbon, Portugal
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154
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Bi J, Watanabe H, Fujimura R, Nishida K, Nakamura R, Oshiro S, Imafuku T, Komori H, Miyahisa M, Tanaka M, Matsushita K, Maruyama T. A downstream molecule of 1,25-dihydroxyvitamin D3, alpha-1-acid glycoprotein, protects against mouse model of renal fibrosis. Sci Rep 2018; 8:17329. [PMID: 30478350 PMCID: PMC6255841 DOI: 10.1038/s41598-018-35339-x] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/11/2018] [Indexed: 12/29/2022] Open
Abstract
Renal fibrosis, the characteristic feature of progressive chronic kidney disease, is associated with unremitting renal inflammation. Although it is reported that 1,25-dihydroxyvitamin D3 (1,25(OH)2D3), the active form of vitamin D, elicits an anti-renal fibrotic effect, its molecular mechanism is still unknown. In this study, renal fibrosis and inflammation observed in the kidney of unilateral ureteral obstruction (UUO) mice were reduced by the treatment of 1,25(OH)2D3. The plasma protein level of alpha-1-acid glycoprotein (AGP), a downstream molecule of 1,25(OH)2D3, was increased following administration of 1,25(OH)2D3. Additionally, increased mRNA expression of ORM1, an AGP gene, was observed in HepG2 cells and THP-1-derived macrophages that treated with 1,25(OH)2D3. To investigate the involvement of AGP, exogenous AGP was administered to UUO mice, resulting in attenuated renal fibrosis and inflammation. We also found the mRNA expression of CD163, a monocyte/macrophage marker with anti-inflammatory potential, was increased in THP-1-derived macrophages under stimulus from 1,25(OH)2D3 or AGP. Moreover, AGP prevented lipopolysaccharide-induced macrophage activation. Thus, AGP could be a key molecule in the protective effect of 1,25(OH)2D3 against renal fibrosis. Taken together, AGP may replace vitamin D to function as an important immune regulator, offering a novel therapeutic strategy for renal inflammation and fibrosis.
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Affiliation(s)
- Jing Bi
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Hiroshi Watanabe
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan. .,Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan.
| | - Rui Fujimura
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Kento Nishida
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Ryota Nakamura
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Shun Oshiro
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Tadashi Imafuku
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan.,Program for Leading Graduate Schools "HIGO (Health life science: Interdisciplinary and Glocal Oriented) Program", Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Hisakazu Komori
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Masako Miyahisa
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan
| | - Motoko Tanaka
- Department of Nephrology, Akebono Clinic, 1-1 Shirafuji 5 Chome, Minami-ku, Kumamoto, 861-4112, Japan
| | - Kazutaka Matsushita
- Department of Nephrology, Akebono Clinic, 1-1 Shirafuji 5 Chome, Minami-ku, Kumamoto, 861-4112, Japan
| | - Toru Maruyama
- Department of Biopharmaceutics, Graduate School of Pharmaceutical Sciences, Kumamoto University, 5-1 Oe-Honmachi, Chuo-ku, Kumamoto, 862-0973, Japan. .,Center for Clinical Pharmaceutical Sciences, School of Pharmacy, Kumamoto University, 5-1, Oe-honmachi, Chuo-ku, Kumamoto, 862-0973, Japan.
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155
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Mylonas KJ, Anderson J, Sheldrake TA, Hesketh EE, Richards JA, Ferenbach DA, Kluth DC, Savill J, Hughes J. Granulocyte macrophage-colony stimulating factor: A key modulator of renal mononuclear phagocyte plasticity. Immunobiology 2018; 224:60-74. [PMID: 30415915 PMCID: PMC6401212 DOI: 10.1016/j.imbio.2018.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2018] [Revised: 10/26/2018] [Accepted: 10/30/2018] [Indexed: 02/07/2023]
Abstract
Macrophage-colony stimulating factor (M-CSF) and granulocyte macrophage-colony stimulating factor (GM-CSF) play key roles in the differentiation of macrophages and dendritic cells (DCs). We examined the effect of treatment with M-CSF-containing macrophage medium or GM-CSF-containing DC medium upon the phenotype of murine bone marrow-derived macrophages and DCs. Culture of macrophages for 5 days in DC medium reduced F4/80 expression and increased CD11c expression with cells effectively stimulating T cell proliferation in a mixed lymphocyte reaction. DC medium treatment of macrophages significantly reduced phagocytosis of both apoptotic cells and latex beads and strongly induced the expression of the chemokine receptor CCR7 known to be involved in DC trafficking to lymph nodes. Lysates of obstructed murine kidneys expressed both M-CSF and GM-CSF though M-CSF expression was dominant (M-CSF:GM-CSF ratio ∼30:1). However, combination treatment with both M-CSF and GM-CSF (ratio 30:1) indicated that small amounts of GM-CSF skewed macrophages towards a DC-like phenotype. To determine whether macrophage phenotype might be modulated in vivo we tracked CD45.1+ bone marrow-derived macrophages intravenously administered to CD45.2+ mice with unilateral ureteric obstruction. Flow cytometry of enzyme dissociated kidneys harvested 3 days later indicated CD11c and MHC Class II upregulation by adoptively transferred CD45.1+ cells with CD45.1+ cells evident in draining renal lymph nodes. Our data suggests that GM-CSF modulates mononuclear phagocyte plasticity, which likely promotes resolution of injury and healing in the injured kidney.
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Affiliation(s)
- Katie J Mylonas
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom.
| | - Jennifer Anderson
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Tara A Sheldrake
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Emily E Hesketh
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - James A Richards
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - David A Ferenbach
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - David C Kluth
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - John Savill
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
| | - Jeremy Hughes
- The University of Edinburgh/ Centre for Inflammation Research, The Queen's Medical Research Institute, Edinburgh BioQuarter, 47 Little France Crescent Edinburgh EH16 4TJ, Scotland, United Kingdom
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156
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Jiandong L, Yang Y, Peng J, Xiang M, Wang D, Xiong G, Li S. Trichosanthes kirilowii lectin ameliorates streptozocin-induced kidney injury via modulation of the balance between M1/M2 phenotype macrophage. Biomed Pharmacother 2018; 109:93-102. [PMID: 30396096 DOI: 10.1016/j.biopha.2018.10.060] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 08/21/2018] [Accepted: 10/11/2018] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Macrophage polarization has been reported to induce podocyte injury, which is a typical characteristic of diabetic nephropathy (DN). Trichosanthes kirilowii is an herb showing renal protective effect as well as immune-regulating effect. Therefore, it was hypothesized that the renal protective effect of Trichosanthes kirilowii was associated with its modulation on macrophage polarization. In the current study, we tested the hypothesis by subjecting DN rats to treatment of Trichosanthes kirilowii lectin (TKL), an active component of Trichosanthes kirilowii. METHOD DN was induced using streptozocin (STZ) method, and after 3 days, treatments were performed with different doses of TKL for eight weeks. The effect of TKL on the renal function, structure, and inflammation was assessed. To explain the pathway mediating the effect of TKL on renal tissues, the expressions of markers involved in macrophage polarization, podocyte proliferation, and Notch signaling were determined. Moreover, the DN rats were further administrated with Notch signaling inhibitor, Dibenzazepine (DIB), to verify the key role of Notch signaling in the renal protective effect of TKL. RESULTS STZ induced damages in renal function and structure, which was attenuated by TKL of different doses. Moreover, STZ also increased the production of TNF-α and iNOS while suppressed the production of IL-10 and arginase-1 (Arg-1). The induced inflammation by STZ was inhibited by TKL. The polarization of macrophage into M1 type during the development of DN was blocked by TKL, contributing to the increased proliferation potential of podocytes. Regarding Notch signaling, TKL administration inhibited the activation of the pathway by suppressing the expression of Notch1, NICD1, and Hes1. The administration of DIB had similar effect to that of TKL administration on renal function and structure. CONCLUSIONS The study for the first time showed that TKL attenuated deterioration in renal structure and function by increasing M2 macrophage proportion via inhibition of Notch signaling.
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Affiliation(s)
- Lu Jiandong
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Yilong Yang
- Geriatrics Department of Traditional Chinese Medicine, Shenzhen Affiliated Hospital of Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Jinting Peng
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Min Xiang
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Dongcai Wang
- Centers for Disease Early Treatment, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China
| | - Guoliang Xiong
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China.
| | - Shunmin Li
- Department of Nephrology, Shenzhen Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, Guangdong, China.
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157
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Hosohata K, Jin D, Takai S, Iwanaga K. Vanin-1 in Renal Pelvic Urine Reflects Kidney Injury in a Rat Model of Hydronephrosis. Int J Mol Sci 2018; 19:ijms19103186. [PMID: 30332759 PMCID: PMC6214032 DOI: 10.3390/ijms19103186] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2018] [Revised: 10/11/2018] [Accepted: 10/13/2018] [Indexed: 12/24/2022] Open
Abstract
Urinary tract obstruction and the subsequent development of hydronephrosis can cause kidney injuries, which results in chronic kidney disease. Although it is important to detect kidney injuries at an early stage, new biomarkers of hydronephrosis have not been identified. In this study, we examined whether vanin-1 could be a potential biomarker for hydronephrosis. Male Sprague-Dawley rats were subjected to unilateral ureteral obstruction (UUO). On day 7 after UUO, when the histopathological renal tubular injuries became obvious, the vanin-1 level in the renal pelvic urine was significantly higher than that in voided urine from sham-operated rats. Furthermore, vanin-1 remained at the same level until day 14. There was no significant difference in the serum vanin-1 level between sham-operated rats and rats with UUO. In the kidney tissue, the mRNA and protein expressions of vanin-1 significantly decreased, whereas there was increased expression of transforming growth factor (TGF)-β1 and Snail-1, which plays a pivotal role in the pathogenesis of renal fibrosis via epithelial-to-mesenchymal transition (EMT). These results suggest that vanin-1 in the renal pelvic urine is released from the renal tubular cells of UUO rats and reflects renal tubular injuries at an early stage. Urinary vanin-1 may serve as a candidate biomarker of renal tubular injury due to hydronephrosis.
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Affiliation(s)
- Keiko Hosohata
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan.
| | - Denan Jin
- Department of Innovative Medicine, Osaka Medical College, Osaka 569-8686, Japan.
| | - Shinji Takai
- Department of Innovative Medicine, Osaka Medical College, Osaka 569-8686, Japan.
| | - Kazunori Iwanaga
- Education and Research Center for Clinical Pharmacy, Osaka University of Pharmaceutical Sciences, Osaka 569-1094, Japan.
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158
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Kundert F, Platen L, Iwakura T, Zhao Z, Marschner JA, Anders HJ. Immune mechanisms in the different phases of acute tubular necrosis. Kidney Res Clin Pract 2018; 37:185-196. [PMID: 30254843 PMCID: PMC6147180 DOI: 10.23876/j.krcp.2018.37.3.185] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 06/25/2018] [Indexed: 12/18/2022] Open
Abstract
Acute kidney injury is a clinical syndrome that can be caused by numerous diseases including acute tubular necrosis (ATN). ATN evolves in several phases, all of which are accompanied by different immune mechanisms as an integral component of the disease process. In the early injury phase, regulated necrosis, damage-associated molecular patterns, danger sensing, and neutrophil-driven sterile inflammation enhance each other and contribute to the crescendo of necroinflammation and tissue injury. In the late injury phase, renal dysfunction becomes clinically apparent, and M1 macrophage-driven sterile inflammation contributes to ongoing necroinflammation and renal dysfunction. In the recovery phase, M2-macrophages and anti-inflammatory mediators counteract the inflammatory process, and compensatory remnant nephron and cell hypertrophy promote an early functional recovery of renal function, while some tubules are still badly injured and necrotic material is removed by phagocytes. The resolution of inflammation is required to promote the intrinsic regenerative capacity of tubules to replace at least some of the necrotic cells. Several immune mechanisms support this wound-healing-like re-epithelialization process. Similar to wound healing, this response is associated with mesenchymal healing, with a profound immune cell contribution in terms of collagen production and secretion of profibrotic mediators. These and numerous other factors determine whether, in the chronic phase, persistent loss of nephrons and hyperfunction of remnant nephrons will result in stable renal function or progress to decline of renal function such as progressive chronic kidney disease.
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Affiliation(s)
- Fedor Kundert
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Louise Platen
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Takamasa Iwakura
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Zhibo Zhao
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Julian A Marschner
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Hans-Joachim Anders
- Nephrologisches Zentrum, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
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159
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Reversing CXCL10 Deficiency Ameliorates Kidney Disease in Diabetic Mice. THE AMERICAN JOURNAL OF PATHOLOGY 2018; 188:2763-2773. [PMID: 30273603 DOI: 10.1016/j.ajpath.2018.08.017] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2018] [Revised: 08/04/2018] [Accepted: 08/23/2018] [Indexed: 12/11/2022]
Abstract
The excessive accumulation of extracellular matrix material in the kidney is a histopathologic hallmark of diabetic kidney disease that correlates closely with declining function. Although considerable research has focused on the role of profibrotic factors, comparatively little attention has been paid to the possibility that a diminution in endogenous antifibrotic factors may also contribute. Among the latter, the ELR- CXC chemokines, CXCL9, CXCL10, and CXCL11, have been shown to provide a stop signal to prevent excessive fibrosis. Although the plasma concentrations of CXCL9 and CXCL11 were similar, those of CXCL10 were markedly lower in diabetic db/db mice compared with control db/m mice. In cell culture, CXCL10 inhibited kidney fibroblast collagen production in response to high glucose and the prosclerotic growth factor, transforming growth factor-β. In vivo, recombinant murine CXCL10 reduced mesangial and peritubular matrix expansion, albuminuria, and glomerular hypertrophy in db/db mice. In bone marrow, a major source of circulating chemokines, the concentration of CXCL10 was lower in cells derived from diabetic mice than from their nondiabetic counterparts. Silencing of CXCR3, the cognate receptor for CXCL10, abrogated the antifibrotic effects of bone marrow-derived secretions. In conclusion, experimental diabetes is a state of CXCL10 deficiency and that restoration of CXCL10 abundance prevented fibrosis and the development of diabetic kidney disease in mice.
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160
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Zheng R, Zhu R, Li X, Li X, Shen L, Chen Y, Zhong Y, Deng Y. N6-(2-Hydroxyethyl) Adenosine From Cordyceps cicadae Ameliorates Renal Interstitial Fibrosis and Prevents Inflammation via TGF-β1/Smad and NF-κB Signaling Pathway. Front Physiol 2018; 9:1229. [PMID: 30233405 PMCID: PMC6131671 DOI: 10.3389/fphys.2018.01229] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Accepted: 08/15/2018] [Indexed: 01/09/2023] Open
Abstract
Renal interstitial fibrosis is characterized by inflammation and an excessive accumulation of extracellular matrix, which leads to end-stage renal failure. Our previous studies have shown that a natural product from Cordyceps cicadae can ameliorate chronic kidney diseases. N6-(2-Hydroxyethyl) adenosine (HEA), a physiologically active compound in C. cicadae, has been identified as a Ca2+ antagonist and an anti-inflammatory agent in pharmacological tests. However, its role in renal interstitial fibrosis and the underlying mechanism remains unclear. Here, unilateral ureteral obstruction (UUO) was used to induce renal interstitial fibrosis in male C57BL/6 mice. Different doses of HEA (2.5, 5, and 7.5 mg/kg) were given by intraperitoneal injection 24 h before UUO, and the treatment was continued for 14 days post-operatively. Histologic changes were examined by hematoxylin & eosin, Masson’s trichrome, and picrosirius red stain. Quantitative real-time PCR analysis, enzyme-linked immunosorbent assays, immunohistochemistry, and western blot analysis were used to evaluate proteins levels. And the results showed that HEA significantly decreased UUO-induced renal tubular injury and fibrosis. In vivo, HEA apparently decreased UUO-induced inflammation and renal fibroblast activation by suppression of the NF-κB and TGF-β1/Smad signaling pathway. In vitro, HEA also obviously decreased lipopolysaccharide-induced inflammatory cytokine level in RAW 264.7 cells and TGF-β1-induced fibroblast activation in NRK-49F cells by modulating NF-κB and TGF-β1/Smad signaling. In general, our findings indicate that HEA has a beneficial effect on UUO-induced tubulointerstitial fibrosis by suppression of inflammatory and renal fibroblast activation, which may be a potential therapy in chronic conditions such as renal interstitial fibrosis.
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Affiliation(s)
- Rong Zheng
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Rong Zhu
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xueling Li
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Xiaoyun Li
- Chengjiaqiao Street Community Health Service Center, Shanghai, China
| | - Lianli Shen
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yi Chen
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yifei Zhong
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yueyi Deng
- Department of Nephrology, Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
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161
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Wang Z, Sun D. Adipose-Derived Mesenchymal Stem Cells: A New Tool for the Treatment of Renal Fibrosis. Stem Cells Dev 2018; 27:1406-1411. [PMID: 30032706 DOI: 10.1089/scd.2017.0304] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
As chronic kidney disease progresses, kidney tissue inevitably undergoes cell loss, accumulation of extracellular matrix, and kidney tissue fibrosis, eventually leading to end-stage renal disease. With the continuous innovation of cell therapy technology, mesenchymal stem cells are used in numerous fields, including cardiovascular diseases, diabetes, and kidney tissue injury repair. Adipose-derived mesenchymal stem cells (AMSCs), a type of pluripotent stem cells, have the potential for self-renewal and proliferation with low immunogenicity and significant anti-inflammatory properties. AMSCs can promote impaired cell regeneration and remodeling in renal lesions, thus avoiding further worsening of renal disease and even blocking or reversing the process of renal fibrosis. In this review, we discuss the mechanisms involved in the treatment of renal fibrosis with AMSCs and summarize the potential hazards that may exist in cell therapy.
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Affiliation(s)
- Zhuojun Wang
- 1 Department of Nephrology, Affiliated Hospital of Xuzhou Medical University , Xuzhou, China
| | - Dong Sun
- 1 Department of Nephrology, Affiliated Hospital of Xuzhou Medical University , Xuzhou, China .,2 Department of Internal Medicine and Diagnostics, Xuzhou Medical University , Xuzhou, China
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162
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Therapeutic potential of stromal cells of non-renal or renal origin in experimental chronic kidney disease. Stem Cell Res Ther 2018; 9:220. [PMID: 30107860 PMCID: PMC6092807 DOI: 10.1186/s13287-018-0960-8] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2018] [Revised: 07/20/2018] [Accepted: 07/24/2018] [Indexed: 12/17/2022] Open
Abstract
Background Mesenchymal stromal cell (MSC)-based therapy is a promising strategy for preventing the progression of chronic kidney disease (CKD), with the potential to induce tissue regeneration. In search of the best cellular source we compared, in the rat model of adriamycin (ADR) nephropathy, the regenerative potential of human stromal cells of non-renal origin, such as bone marrow (bm) MSCs and umbilical cord (uc) MSCs, with that of newly discovered stromal cells of renal origin, the kidney perivascular cells (kPSCs) known to exhibit tissue-specific properties. Methods The therapeutic effect of repeated infusions of human bmMSCs, ucMSCs, kPSCs (1.5 × 106 cells/rats) or conditioned medium from ucMSCs was studied in athymic rats with ADR-induced nephropathy (7.9 mg/kg). The ability of the three stromal cell populations to engraft the damaged kidney was evaluated by detecting the presence of human nuclear antigenpos cells. Glomerular podocyte loss and endothelial damage, sclerotic lesions and inflammation were assessed at 14 and 28 days. In-vitro experiments with a transwell system were performed to investigate the effects of different stromal cell populations on parietal epithelial cells (PECs) activated or not with albumin or angiotensin II for 24 h. Results Infusions of non-renal and renal stromal cells resulted in a comparable engraftment into the kidney, in the peritubular areas and around the glomerular structures. All three cell populations limited podocyte loss and glomerular endothelial cell injury, and attenuated the formation of podocyte and PEC bridges. This translated into a reduction of glomerulosclerosis and fibrosis. Human ucMSCs had an anti-inflammatory effect superior to that of the other stromal cells, reducing macrophage infiltration and inducing polarisation towards the M2 macrophage phenotype. Conditioned medium from ucMSCs shared the same renoprotective effects of the cells. Consistent with in-vivo data, bmMSCs and kPSCs, but even more so ucMSCs, limited proliferation, migratory potential and extracellular matrix production of activated PECs, when cultured in a transwell system. Conclusions Our data indicate that either non-renal or renal stromal cells induce renal tissue repair, highlighting ucMSCs and their conditioned medium as the most reliable clinical therapeutic tool for CKD patients. Electronic supplementary material The online version of this article (10.1186/s13287-018-0960-8) contains supplementary material, which is available to authorized users.
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Matsuyama S, Karim MR, Izawa T, Kuwamura M, Yamate J. Immunohistochemical analyses of the kinetics and distribution of macrophages in the developing rat kidney. J Toxicol Pathol 2018; 31:207-212. [PMID: 30093791 PMCID: PMC6077163 DOI: 10.1293/tox.2018-0002] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2018] [Accepted: 04/06/2018] [Indexed: 01/05/2023] Open
Abstract
Macrophages are required during kidney development and appear in the initiation and propagation of renal injury. To establish baseline data, we analyzed the kinetics of the macrophage with different immunophenotypes in the developing rat kidney (fetus at 18 and 20 days, neonate at 1-21 days, and adult at 7-weeks old). Macrophages reacting to CD68, CD163, and MHC class II were identified in the cortex and medulla of the developing rat kidney. CD68+ macrophages appeared in the fetal kidney as early as fetal day 18, and the number increased gradually in the neonatal kidney, whereas MHC class II+ and CD163+ macrophages first appeared on neonatal days 4 and 8, respectively. Apoptotic bodies were seen in the fetal kidney and early stages of the neonatal kidney (days 1-4), and simultaneously CD68+ macrophages appeared, indicating that CD68+ macrophages may have roles in phagocytosis of apoptotic bodies and contribute to renal tissue maturation. Colony stimulating factor 1 and insulin growth factor 1 mRNAs were increased in the late stage of renal development (neonatal day 12 or later), and simultaneously CD163+ and MHC class II+ cells appeared, suggesting that these cells may be a source of these growth factors and participate in renal tissue modeling. Generally, the CD163+ and MHC class II+ cell number was much smaller than that of CD68+ cells in the developing neonatal kidney. Therefore, the obtained findings provide valuable information on the participation of macrophages in the developing rat kidney. This information may be useful for evaluation of renal toxicity when macrophages are involved in the development of renal injury.
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Affiliation(s)
- Satoshi Matsuyama
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Mohammad Rabiul Karim
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Takeshi Izawa
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Mitsuru Kuwamura
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
| | - Jyoji Yamate
- Laboratory of Veterinary Pathology, Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58 Rinku-Ourai-Kita, Izumisano-shi, Osaka 598-8531, Japan
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Circulating CD14 +CD163 +CD206 + M2 Monocytes Are Increased in Patients with Early Stage of Idiopathic Membranous Nephropathy. Mediators Inflamm 2018; 2018:5270657. [PMID: 30034290 PMCID: PMC6032654 DOI: 10.1155/2018/5270657] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 04/02/2018] [Accepted: 04/16/2018] [Indexed: 11/17/2022] Open
Abstract
Aim To analyze changes in peripheral blood monocytes and their clinical significance in patients with early stage of idiopathic membranous nephropathy (IMN). Methods A total of 27 patients with early stage of IMN and 16 age- and sex-matched healthy controls (HCs) were recruited for the study. The monocyte subset counts in circulation were measured by flow cytometry, and serum interleukin- (IL-) 10 and IL-12 concentrations were tested by enzyme-linked immunosorbent assay. The potential association between clinical signs and monocyte subset counts was analyzed statistically. Results Compared with the HCs, the patients with early stage of IMN had higher counts of CD14+CD163+, CD14+CD163+CD206+, and CD14+CD163+CD206+CD115+ M2-like monocytes. The CD14+CD163+CD206+ M2-like cell counts and intracellular IL-10 concentrations in the monocytes were positively correlated with progression in proteinuria. The levels of serum IL-10 were significantly higher in early IMN patients than in the HCs. Furthermore, CD14+CD163+CD206+ M2-like cell counts in the patients with incipient IMN were also positively related with 24 h urinary albumin levels and the values of serum M-type phospholipase A2 receptor (PLA2R). Conclusion CD14+CD163+CD206+ M2-like monocytes may contribute to the pathologic process in early-stage IMN and could serve as potential markers for evaluating the disease severity.
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Centini R, Tsang M, Iwata T, Park H, Delrow J, Margineantu D, Iritani BM, Gu H, Liggitt HD, Kang J, Kang L, Hockenbery DM, Raftery D, Iritani BM. Loss of Fnip1 alters kidney developmental transcriptional program and synergizes with TSC1 loss to promote mTORC1 activation and renal cyst formation. PLoS One 2018; 13:e0197973. [PMID: 29897930 PMCID: PMC5999084 DOI: 10.1371/journal.pone.0197973] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2017] [Accepted: 05/13/2018] [Indexed: 12/16/2022] Open
Abstract
Birt-Hogg-Dube' Syndrome (BHDS) is a rare genetic disorder in humans characterized by skin hamartomas, lung cysts, pneumothorax, and increased risk of renal tumors. BHDS is caused by mutations in the BHD gene, which encodes for Folliculin, a cytoplasmic adapter protein that binds to Folliculin interacting proteins-1 and -2 (Fnip1, Fnip2) as well as the master energy sensor AMP kinase (AMPK). Whereas kidney-specific deletion of the Bhd gene in mice is known to result in polycystic kidney disease (PKD) and renal cell carcinoma, the roles of Fnip1 in renal cell development and function are unclear. In this study, we utilized mice with constitutive deletion of the Fnip1 gene to show that the loss of Fnip1 is sufficient to result in renal cyst formation, which was characterized by decreased AMPK activation, increased mTOR activation, and metabolic hyperactivation. Using RNAseq, we found that Fnip1 disruption resulted in many cellular and molecular changes previously implicated in the development of PKD in humans, including alterations in the expression of ion and amino acid transporters, increased cell adhesion, and increased inflammation. Loss of Fnip1 synergized with Tsc1 loss to hyperactivate mTOR, increase Erk activation, and greatly accelerate the development of PKD. Our results collectively define roles for Fnip1 in regulating kidney development and function, and provide a model for how loss of Fnip1 contributes to PKD and perhaps renal cell carcinoma.
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Affiliation(s)
- Ryan Centini
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Mark Tsang
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Terri Iwata
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Heon Park
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Jeffrey Delrow
- Genomics and Bioinformatics Shared Resources, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Daciana Margineantu
- Clinical Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Brandon M. Iritani
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Haiwei Gu
- Department of Anesthesiology and Pain Medicine, Mitochondria and Metabolism Center, Northwest Metabolomics Research Center, University of Washington, Seattle, Washington, United States of America
| | - H. Denny Liggitt
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Janella Kang
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - Lim Kang
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
| | - David M. Hockenbery
- Clinical Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Daniel Raftery
- Department of Anesthesiology and Pain Medicine, Mitochondria and Metabolism Center, Northwest Metabolomics Research Center, University of Washington, Seattle, Washington, United States of America
- Public Health Sciences Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America
| | - Brian M. Iritani
- The Department of Comparative Medicine, University of Washington, Seattle, Washington, United States of America
- * E-mail:
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166
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Notch3 orchestrates epithelial and inflammatory responses to promote acute kidney injury. Kidney Int 2018; 94:126-138. [PMID: 29751972 DOI: 10.1016/j.kint.2018.01.031] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 01/11/2018] [Accepted: 01/18/2018] [Indexed: 12/20/2022]
Abstract
Acute kidney injury is a major risk factor for subsequent chronic renal and/or cardiovascular complications. Previous studies have shown that Notch3 was de novo expressed in the injured renal epithelium in the early phases of chronic kidney disease. Here we examined whether Notch3 is involved in the inflammatory response and the epithelial cell damage that typifies ischemic kidneys using Notch3 knockout mice and mice with short-term activated Notch3 signaling (N3ICD) in renal epithelial cells. After ischemia/reperfusion, N3ICD mice showed exacerbated infiltration of inflammatory cells and severe tubular damage compared to control mice. Inversely, Notch3 knockout mice were protected against ischemia/reperfusion injury. Renal macrophages derived from Notch3 knockout mice failed to activate proinflammatory cytokines. Chromatin immunoprecipitation analysis of the Notch3 promoter identified NF-κB as the principal inducer of Notch3 in ischemia/reperfusion. Thus, Notch3 induced by NF-κB in the injured epithelium sustains a proinflammatory environment attracting activated macrophages to the site of injury leading to a rapid deterioration of renal function and structure. Hence, targeting Notch3 may provide a novel therapeutic strategy against ischemia/reperfusion and acute kidney injury by preservation of epithelial structure and disruption of proinflammatory signaling.
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167
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Wang Q, Liang Y, Qiao Y, Zhao X, Yang Y, Yang S, Li B, Zhao Q, Dong L, Quan S, Tian R, Liu Z. Expression of soluble epoxide hydrolase in renal tubular epithelial cells regulates macrophage infiltration and polarization in IgA nephropathy. Am J Physiol Renal Physiol 2018; 315:F915-F926. [PMID: 29717935 DOI: 10.1152/ajprenal.00534.2017] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Tubulointerstitial inflammatory cell infiltration and activation contribute to kidney inflammation and fibrosis. Epoxyeicosatrienoic acids (EETs), which are rapidly metabolized to dihydroxyeicosatrienoic acids by the soluble epoxide hydrolase (sEH), have multiple biological functions, including vasodilation, anti-inflammatory action, and others. Inhibition of sEH has been demonstrated to attenuate inflammation in many renal disease models. However, the relationship between sEH expression and macrophage polarization in the kidney remains unknown. In this study, we investigated the relationships between the level of sEH and clinical and pathological parameters in IgA nephropathy. The level of sEH expression positively correlated with proteinuria and infiltration of macrophages. sEH-positive tubules were found to be surrounded by macrophages. Furthermore, we found that incubation of immortalized human proximal tubular HK-2 cells with total urinary protein and overexpression of sEH promoted inflammatory factor production, which was associated with M1 polarization. We also exposed RAW264.7 mouse leukemic monocytes/macrophages to different HK-2 cell culture media conditioned by incubation with various substances affecting sEH amount or activity. We found that the upregulation of sEH promoted M1 polarization. However, pharmacological inhibition of sEH and supplementation with EETs reversed the conditioning effects of urinary proteins by inhibiting M1 polarization through the NF-κB pathway and stimulating M2 polarization through the phosphatidylinositol 3-kinase pathway. These data suggest that inhibition of sEH could be a new strategy to prevent the progression of inflammation and to attenuate renal tubulointerstitial fibrosis.
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Affiliation(s)
- Qian Wang
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China.,Institute of Nephrology, Zhengzhou University , Zhengzhou , China
| | - Yan Liang
- Institute of Nephrology, Zhengzhou University , Zhengzhou , China.,Department of Nephrology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
| | - Yingjin Qiao
- Institute of Nephrology, Zhengzhou University , Zhengzhou , China.,Blood Purification Center, The First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
| | - Xiangya Zhao
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Yi Yang
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Shengnan Yang
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Bing Li
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Qianru Zhao
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Ling Dong
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Songxia Quan
- Department of Pathology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
| | - Rui Tian
- Department of Geriatric Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Zhangsuo Liu
- Institute of Nephrology, Zhengzhou University , Zhengzhou , China.,Department of Nephrology, The First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
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168
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Gallagher KA, Obi AT, Elfline MA, Hogikyan E, Luke CE, Henke S, Coleman D, Henke PK. Alterations in macrophage phenotypes in experimental venous thrombosis. J Vasc Surg Venous Lymphat Disord 2018; 4:463-71. [PMID: 27639001 DOI: 10.1016/j.jvsv.2016.03.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2015] [Accepted: 03/12/2016] [Indexed: 10/21/2022]
Abstract
OBJECTIVE Macrophages are involved in venous thrombus (VT) resolution and vein wall remodeling. This study was undertaken to identify variations in macrophage phenotypes in thrombi and vein wall in multiple models of VT to clarify the natural history of macrophage polarization in clearance of VT. We also sought to demonstrate the feasibility of macrophage phenotyping in human VT. METHODS Established murine models of VT were used to mimic the clinical spectrum of human VT (stasis and nonstasis models). Vein wall and thrombi were isolated at acute (2 days) or chronic (6-21 days) time points and analyzed by Bio-Plex assay (Bio-Rad, Carlsbad, Calif) for cytokines (interleukin [IL]-1β, IL-6, IL-10, IL-12), by immunohistochemistry for "M1-like" (IL-12) or "M2-like" (arginase 1 [Arg-1]) markers, and by histology for intimal thickness and collagen content (Sirius red staining). Bone marrow was harvested from animals 2 days after undergoing sham, stasis, or nonstasis surgery. Macrophages were skewed toward M1 using lipopolysaccharide, and RNA analysis was done for inflammatory cytokine genes (IL-1β, IL-12). Human blood samples were similarly analyzed with reverse transcription polymerase chain reaction for macrophage polarization markers (CD206, inducible nitric oxide synthase, CCR2) and thrombi with immunohistochemistry (inducible nitric oxide synthase, Arg-1). RESULTS Stasis (chronic) and nonstasis (acute and chronic) thrombi were characterized by a predominance in anti-inflammatory (M2) macrophages (n = 4-5/group; P < .05). Larger thrombi were found in the stasis model at both time points (n = 3; P < .01), correlating with decreased intrathrombus inflammatory (M1) cytokines (IL-1β, P = .03; IL-12, P = .17; n = 4) and diminished inflammatory response of bone marrow-derived macrophages to lipopolysaccharide (IL-1β, P = .03; IL-12, P = .04; n = 4) compared with nonstasis model. Anti-inflammatory (M2 [Arg-1]) macrophage cell counts were elevated in the post-thrombotic vein wall of stasis mice compared with nonstasis mice (acute: n = 4, P < .05; chronic: n = 5, P < .01), consistent with increased intimal thickness (P < .01; n = 4-6) and collagen deposition chronically (P = .005; n = 12). M2-like thrombi (Arg-1, P < .05; n = 4-7) and circulating markers (CD206, P < .05; n = 9-17) decreased over time in human VT. CONCLUSIONS Experimental VT is characterized by an anti-inflammatory predominant macrophage phenotype, possibly impairing thrombus resolution, and is model dependent. Altering the M1/M2 macrophage balance may accelerate thrombus resolution and allow the development of translatable novel therapies to treat VT and to prevent post-thrombotic syndrome.
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Affiliation(s)
- Katherine A Gallagher
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Andrea T Obi
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Megan A Elfline
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Emily Hogikyan
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Catherine E Luke
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Samuel Henke
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Dawn Coleman
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich
| | - Peter K Henke
- Section of Vascular Surgery, Department of Vascular Surgery, University of Michigan Medical School, Ann Arbor, Mich.
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Lee HH, Kim SY, Na JC, Yoon YE, Han WK. Exogenous pentraxin-3 inhibits the reactive oxygen species-mitochondrial and apoptosis pathway in acute kidney injury. PLoS One 2018; 13:e0195758. [PMID: 29672566 PMCID: PMC5909599 DOI: 10.1371/journal.pone.0195758] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2017] [Accepted: 03/28/2018] [Indexed: 11/18/2022] Open
Abstract
Pentraxin-3 (PTX3) is a long-form member of the pentraxin family of proteins that has been studied in inflammatory diseases and in various organs. We found that PTX3 protects kidney cells during ischemia and proinflammatory acute kidney injury. The aim of this study was to develop an in vitro experimental model of acute kidney injury and to analyze the protective mechanism of exogenous recombinant PTX3. In this study, cells of the HK-2 renal tubular cell line were treated with a calcium ionophore (A23187), which induced injury by increasing intracellular calcium concentrations and inducing calpain activity and the generation of reactive oxygen species. Exposure of cells to PTX3 significantly attenuated these effects. In addition, the activity of caspase-3 and PARP-1 were decreased in ischemic cells exposed to exogenous recombinant PTX3. PTX3 stabilized the mitochondrial membrane potential and suppressed apoptosis, resulting in the protection of renal tubular cells from ischemic injury.
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Affiliation(s)
- Hyung Ho Lee
- Department of Urology, National Health Insurance Service Ilsan Hospital, Gyeonggi-do, Korea
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Sook Young Kim
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Joon Chae Na
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
| | - Young Eun Yoon
- Department of Urology, Hanyang University College of Medicine, Seoul, Korea
| | - Woong Kyu Han
- Department of Urology, Urological Science Institute, Yonsei University College of Medicine, Seoul, Korea
- Brain Korea 21 PLUS Project for Medical Science, Yonsei University College of Medicine, Seoul, Korea
- * E-mail:
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170
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Steiger S, Grill JF, Ma Q, Bäuerle T, Jordan J, Smolle M, Böhland C, Lech M, Anders HJ. Anti-Transforming Growth Factor β IgG Elicits a Dual Effect on Calcium Oxalate Crystallization and Progressive Nephrocalcinosis-Related Chronic Kidney Disease. Front Immunol 2018; 9:619. [PMID: 29651290 PMCID: PMC5884871 DOI: 10.3389/fimmu.2018.00619] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Accepted: 03/12/2018] [Indexed: 11/13/2022] Open
Abstract
Crystallopathies are a heterogeneous group of diseases caused by intrinsic or environmental microparticles or crystals, promoting tissue inflammation and scarring. Certain proteins interfere with crystal formation and growth, e.g., with intrarenal calcium oxalate (CaOx) crystal formation, a common cause of kidney stone disease or nephrocalcinosis-related chronic kidney disease (CKD). We hypothesized that immunoglobulins can modulate CaOx microcrystal formation and crystal growth and that therefore, biological IgG-based drugs designed to specifically target disease modifying proteins would elicit a dual effect on the outcome of CaOx-related crystallopathies. Indeed, both the anti-transforming growth factor (TGF)β IgG and control IgG1 antibody impaired CaOx crystallization in vitro, and decreased intrarenal CaOx crystal deposition and subsequent CKD in mice on an oxalate-rich diet compared to oxalate-fed control mice. However, the TGFβ-specific IgG antibody showed nephroprotective effects beyond those of control IgG1 and substantially reduced interstitial fibrosis as indicated by magnetic resonance imaging, silver and α-smooth muscle actin staining, RT-qPCR, and flow cytometry for pro-fibrotic macrophages. Suppressing interstitial fibrosis slowed the decline of glomerular filtration rate (GFR) compared to treatment with control IgG1 [slope of m = −8.9 vs. m = −14.5 μl/min/100 g body weight (BW)/day, Δ = 38.3%], an increased GFR at the end of the study (120.4 vs. 42.6 μl/min/100 g BW, Δ = 64.6%), and prolonged end stage renal disease (ESRD)-free renal survival by 10 days (Δ = 38.5%). Delayed onset of anti-TGFβ IgG from day 7 was no longer effective. Our results suggest that biological drugs can elicit dual therapeutic effects on intrinsic crystallopathies, such as anti-TGFβ IgG antibody treatment inhibits CaOx crystallization as well as interstitial fibrosis in nephrocalcinosis-related CKD.
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Affiliation(s)
- Stefanie Steiger
- Division of Nephrology, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Julia Felicitas Grill
- Division of Nephrology, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Qiuyue Ma
- Division of Nephrology, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Tobias Bäuerle
- Preclinical Imaging Platform Erlangen, Institute of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Jutta Jordan
- Preclinical Imaging Platform Erlangen, Institute of Radiology, Friedrich-Alexander-Universität Erlangen-Nürnberg, Erlangen, Germany
| | - Michaela Smolle
- Ludwig-Maximilians Universität München, Biomedizinisches Centrum, Munich, Germany
| | - Claudia Böhland
- Department of Radiation Oncology, Ludwig-Maximilians Universität München, Munich, Germany
| | - Maciej Lech
- Division of Nephrology, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - Hans-Joachim Anders
- Division of Nephrology, Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
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Flores-Mendoza G, Sansón SP, Rodríguez-Castro S, Crispín JC, Rosetti F. Mechanisms of Tissue Injury in Lupus Nephritis. Trends Mol Med 2018. [PMID: 29526595 DOI: 10.1016/j.molmed.2018.02.003] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Disease heterogeneity remains a major challenge for the understanding of systemic lupus erythematosus (SLE). Recent work has revealed the important role of nonimmune factors in the development of end-organ damage involvement, shifting the current paradigm that views SLE as a disease inflicted by a disturbed immune system on passive target organs. Here, we discuss the pathogenesis of lupus nephritis in a comprehensive manner, by incorporating the role that target organs play by withstanding and modulating the local inflammatory response. Moreover, we consider the effects that genetic variants exert on immune and nonimmune cells in order to shape the phenotype of the disease in each affected individual.
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Affiliation(s)
- Giovanna Flores-Mendoza
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico; Doctorado en Ciencias Biológicas, Facultad de Medicina, UNAM, Mexico City, Mexico
| | - Stephanie P Sansón
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico; Plan de Estudios Combinados en Medicina (PECEM), Facultad de Medicina, UNAM, Mexico City, Mexico
| | - Santiago Rodríguez-Castro
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico; Plan de Estudios Combinados en Medicina (PECEM), Facultad de Medicina, UNAM, Mexico City, Mexico
| | - José C Crispín
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
| | - Florencia Rosetti
- Departamento de Inmunología y Reumatología, Instituto Nacional de Ciencias Médicas y Nutrición Salvador Zubirán, Mexico City 14080, Mexico.
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172
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Lin S, Lian D, Liu W, Haig A, Lobb I, Hijazi A, Razvi H, Burton J, Whiteman M, Sener A. Daily therapy with a slow-releasing H 2S donor GYY4137 enables early functional recovery and ameliorates renal injury associated with urinary obstruction. Nitric Oxide 2018. [PMID: 29522906 DOI: 10.1016/j.niox.2018.03.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
OBJECTIVES To assess the effects of slow-releasing H2S donor GYY4137 on post-obstructive renal function and injury following unilateral ureteral obstruction (UUO) by using the UUO and reimplantation (UUO-R) model in rats and to elucidate potential mechanisms by using an in vitro model of epithelial-mesenchymal transition (EMT). METHODS Male Lewis rats underwent UUO at the left ureterovesical junction. From post-operative day (POD) 1-13, rats received daily intraperitoneal (IP) injection of phosphate buffered saline (PBS, 1 mL) or GYY4137 (200 μmol/kg/day in 1 mL PBS, IP). On POD 14, the ureter was reimplanted back into the bladder, followed by a right nephrectomy. Urine and serum samples were collected to monitor renal function. On POD 30, the left kidney was removed and tissue sections were stained with H&E, TUNEL, CD68, CD206, myeloperoxidase, and Masson's trichrome to determine cortical thickness, apoptosis, inflammation, and fibrosis. In our in vitro model of EMT, NRK52E cells were treated with 10 ng/mL TGF-β1, 10 μM GYY4137 and/or 50 μM GYY4137. Western blot analysis was performed to determine the expression of E-cadherin, vimentin, Smad7 and TGF-β1 receptor II (TβRII). RESULTS GYY4137 led to a moderate decrease in post-obstructive serum creatinine, cystatin C and FENa. We also observed a trend towards a decrease in post-obstructive proteinuria following GYY4137 treatment. Histologically, we observed a significant decrease in apoptosis, inflammation, and fibrosis. Furthermore, our in vitro studies demonstrate that in the presence of TGF-β1, GYY4137 significantly decreases vimentin and TβRII and significantly increases E-cadherin and Smad7. CONCLUSIONS H2S may help to accelerate the recovery of renal function post-obstruction and attenuates renal injury associated with UUO. It is possible that H2S mitigates fibrosis by regulating the TGF-β1-mediated EMT pathway. Taken together, our data suggest that H2S may be a potential novel therapy for improving renal function and limiting renal injury associated with obstructive uropathy.
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Affiliation(s)
- Shouzhe Lin
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, London, Ontario, Canada
| | - Dameng Lian
- Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, London, Ontario, Canada
| | - Weihua Liu
- Department of Pathology, Western University, London, Ontario, Canada
| | - Aaron Haig
- Department of Pathology, Western University, London, Ontario, Canada
| | - Ian Lobb
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada; Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, London, Ontario, Canada
| | - Ahmed Hijazi
- Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Hassan Razvi
- Department of Surgery, Western University, London, Ontario, Canada
| | - Jeremy Burton
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada
| | - Matthew Whiteman
- University of Exeter Medical School, University of Exeter, Exeter, Devon, United Kingdom
| | - Alp Sener
- Department of Microbiology and Immunology, Western University, London, Ontario, Canada; Department of Surgery, Western University, London, Ontario, Canada; Multi-Organ Transplant Program, London Health Sciences Center, London, Ontario, Canada; Matthew Mailing Center for Translational Transplant Studies, London Health Sciences Center, London, Ontario, Canada.
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173
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Klessens CQF, Zandbergen M, Wolterbeek R, Bruijn JA, Rabelink TJ, Bajema IM, IJpelaar DHT. Macrophages in diabetic nephropathy in patients with type 2 diabetes. Nephrol Dial Transplant 2018; 32:1322-1329. [PMID: 27416772 DOI: 10.1093/ndt/gfw260] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2015] [Accepted: 05/30/2016] [Indexed: 12/17/2022] Open
Abstract
Background Inflammation plays a role in the development of diabetic nephropathy (DN) in type 2 diabetes. Although macrophages have been found in experimental models of DN, little is known regarding the presence of macrophages in patients with DN. Therefore, we investigated the presence and phenotype of glomerular and interstitial macrophages in relation to clinical and histopathological parameters in patients with DN. Methods Renal autopsy samples were obtained from 88 type 2 diabetic patients with histologically proven DN and stained for CD68 and CD163 as general and M2/anti-inflammatory markers of macrophages. Renal damage was scored based on histopathological classification of DN. Control renal autopsy samples were obtained from patients without renal abnormalities and from diabetic patients without DN. Positive cells per glomerulus were counted. Interstitial macrophages were counted semi-quantitatively. Results Macrophages were present in all groups. In the DN group, the mean number of CD68+ cells per glomerulus and CD163+ cells per glomerulus was 4.2 (range 0-19) and 2.1 (range 0-14.47), respectively. The distribution was similar between all histopathological classes. Glomerular CD163+ macrophages were positively associated with DN class, interstitial fibrosis and tubular atrophy, and glomerulosclerosis. Interstitial CD68+ macrophages were correlated with glomerular filtration rate stage and albuminuria. Conclusions Our results demonstrate that macrophages are present in the glomeruli and interstitium of type 2 diabetic patients with DN and of controls. Although patients and controls had similar numbers of glomerular macrophages, glomerular anti-inflammatory CD163+ macrophages were associated with pathological lesions in DN. Taken together with the correlation between interstitial macrophages and interstitial fibrosis and tubular atrophy, DN class, and renal function, this finding suggests that macrophages may play a role in DN progression. Therefore, targeting macrophages may be a promising new therapy for inhibiting the progression of DN.
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Affiliation(s)
- Celine Q F Klessens
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Malu Zandbergen
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ron Wolterbeek
- Department of Statistics, Leiden University Medical Center, Leiden, The Netherlands
| | - Jan A Bruijn
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ton J Rabelink
- Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ingeborg M Bajema
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Daphne H T IJpelaar
- Department of Nephrology, Leiden University Medical Center, Leiden, The Netherlands
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174
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Anders HJ, Suarez-Alvarez B, Grigorescu M, Foresto-Neto O, Steiger S, Desai J, Marschner JA, Honarpisheh M, Shi C, Jordan J, Müller L, Burzlaff N, Bäuerle T, Mulay SR. The macrophage phenotype and inflammasome component NLRP3 contributes to nephrocalcinosis-related chronic kidney disease independent from IL-1–mediated tissue injury. Kidney Int 2018; 93:656-669. [DOI: 10.1016/j.kint.2017.09.022] [Citation(s) in RCA: 120] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2017] [Revised: 09/12/2017] [Accepted: 09/21/2017] [Indexed: 11/30/2022]
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175
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Roles of Macrophage Subtypes in Bowel Anastomotic Healing and Anastomotic Leakage. J Immunol Res 2018; 2018:6827237. [PMID: 29670921 PMCID: PMC5835259 DOI: 10.1155/2018/6827237] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 12/21/2017] [Accepted: 01/02/2018] [Indexed: 12/13/2022] Open
Abstract
Macrophages play an important role in host defense, in addition to the powerful ability to phagocytose pathogens or foreign matters. They fulfill a variety of roles in immune regulation, wound healing, and tissue homeostasis preservation. Macrophages are characterized by high heterogeneity, which can polarize into at least two major extremes, M1-type macrophages (classical activation) which are normally derived from monocytes and M2-type macrophages (alternative activation) which are mostly those tissue-resident macrophages. Based on the wound healing process in skin, the previous studies have documented how these different subtypes of macrophages participate in tissue repair and remodeling, while the mechanism of macrophages in bowel anastomotic healing has not yet been established. This review summarizes the currently available evidence regarding the different roles of polarized macrophages in the physiological course of anastomotic healing and their pathological roles in anastomotic leakage, the most dangerous complication after gastrointestinal surgery.
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176
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Nakazawa KR, Walter BA, Laudier DM, Krishnamoorthy D, Mosley GE, Spiller KL, Iatridis JC. Accumulation and localization of macrophage phenotypes with human intervertebral disc degeneration. Spine J 2018; 18:343-356. [PMID: 29031872 PMCID: PMC5815908 DOI: 10.1016/j.spinee.2017.09.018] [Citation(s) in RCA: 108] [Impact Index Per Article: 18.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 09/18/2017] [Accepted: 09/26/2017] [Indexed: 02/03/2023]
Abstract
BACKGROUND CONTEXT Chronic inflammation is an important component of intervertebral disc (IVD) degeneration, but there is limited knowledge about the identity and source of inflammatory cells involved with the degenerative processes. Macrophages can exhibit multiple phenotypes and are known inflammatory regulators in many tissues, but their phenotypes have not been characterized in IVD degeneration. PURPOSE We aimed to characterize accumulation and localization of macrophages in IVD degeneration. STUDY DESIGN/SETTING This is an exploratory study to characterize macrophage phenotypes in human cadaver IVDs and the effects of injury and degeneration using multiple immunohistochemistry methods. OUTCOME MEASURES Percent positivity of immunohistochemical markers specific for CCR7, CD163, and CD206, and qualitative assessments of dual immunofluorescence and immunostaining localization were the outcome measures. METHODS Macrophages were identified in human cadaveric IVDs with immunohistochemistry using cell surface markers CCR7, CD163, and CD206, which are associated with proinflammatory M1, remodeling M2c, and anti-inflammatory M2a phenotypes, respectively. Variations in the accumulation and localization of macrophage markers with degenerative grade across subjects and within donors are described. RESULTS Cells expressing all three macrophage markers were found in all degenerative IVDs, but not in the healthiest IVDs. Cells expressing CCR7 and CD163, but not CD206, significantly increased with degenerative grade. Many cells also co-expressed multiple macrophage markers. Across all degenerative grades, CCR7+ and CD163+ were significantly more present in unhealthy nucleus pulposus (NP), annulus fibrosus (AF), and end plate (EP) regions exhibiting structural irregularities and defects. Positively stained cells in the NP and AF closely resembled resident IVD cells, suggesting that IVD cells can express macrophage cell surface markers. In the EP, there were increasing trends of positively stained cells with atypical morphology and distribution, suggesting a source for exogenous macrophage infiltration into the IVD. CONCLUSIONS Chronic inflammatory conditions of IVD degeneration appear to involve macrophages or macrophage-like cells, as expression of multiple macrophage markers increased with degeneration, especially around unhealthy regions with defects and the EP. Knowledge of macrophage phenotypes and their localization better elucidates the complex injury and repair processes in IVDs and may eventually lead to novel treatments.
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Affiliation(s)
- Kenneth R. Nakazawa
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Benjamin A. Walter
- Spine Research Institute, Department of Biomedical Engineering, The Ohio State University, Columbus, OH
| | - Damien M. Laudier
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Divya Krishnamoorthy
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Grace E. Mosley
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
| | - Kara L. Spiller
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, PA
| | - James C. Iatridis
- Leni and Peter W. May Department of Orthopaedics, Icahn School of Medicine at Mount Sinai, New York, NY
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Luan P, Zhuang J, Zou J, Li H, Shuai P, Xu X, Zhao Y, Kou W, Ji S, Peng A, Xu Y, Su Q, Jian W, Peng W. NLRC5 deficiency ameliorates diabetic nephropathy through alleviating inflammation. FASEB J 2018; 32:1070-1084. [PMID: 29070585 DOI: 10.1096/fj.201700511rr] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
NOD-like receptor family caspase recruitment domain family domain containing 5 (NLRC5) has important roles in inflammation and innate immunity. NLRC5 was highly expressed in kidney from streptozotocin-induced diabetic mice, db/ db mice and patients with diabetes. Based on that evidence, the present study was designed to explore the roles of NLRC5 in the progression of diabetic nephropathy (DN). We examined kidney injury, including inflammation and fibrosis in Nlrc5 gene knockout ( Nlrc5-/-) and wild-type (WT) diabetic mice. We found that Nlrc5-/- mice developed less-severe diabetic kidney injury compared with WT mice, exhibiting lower albuminuria, less fibronectin and collagen IV expression, and reduced macrophage infiltration but greater levels of podocin and nephrin in the diabetic kidney. The underlying mechanisms were further investigated in vitro with peritoneal macrophages and mesangial cells treated with high glucose. Reduced proinflammatory effect was observed in peritoneal macrophages from Nlrc5-/- mice, associated with NF-κB pathway suppression. Knocking down of NLRC5 in mesangial cells in high-glucose conditions was also associated with reduced NF-κB and TGF-β/Smad signaling. Taken together, NLRC5 promotes inflammation and fibrosis during DN progression partly through the effects on NF-κB and TGF-β/Smad pathways. NLRC5 may, therefore, be a promising therapeutic target for DN treatment.-Luan, P., Zhuang, J., Zou, J., Li, H., Shuai, P., Xu, X., Zhao, Y., Kou, W., Ji, S., Peng, A., Xu, Y., Su, Q., Jian, W., Peng, W. NLRC5 deficiency ameliorates diabetic nephropathy through alleviating inflammation.
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Affiliation(s)
- Peipei Luan
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Jianhui Zhuang
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Jun Zou
- Department of Nephropathy, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Hailing Li
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ping Shuai
- Department of Pathology, The First Affiliated Hospital of Gannan Medical University, Gannan Medical University, Ganzhou, China
| | - Xiaopeng Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yifan Zhao
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Wenxin Kou
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Shuya Ji
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ai Peng
- Department of Nephropathy, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yawei Xu
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
| | - Qing Su
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Weixia Jian
- Department of Endocrinology, Xinhua Hospital, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Wenhui Peng
- Department of Cardiology, Shanghai Tenth People's Hospital, Tongji University School of Medicine, Shanghai, China
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178
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Zhang L, Xu C, Hu W, Wu P, Qin C, Zhang J. Anti-inflammatory effects of Lefty-1 in renal tubulointerstitial inflammation via regulation of the NF-κB pathway. Int J Mol Med 2017; 41:1293-1304. [PMID: 29286065 PMCID: PMC5819905 DOI: 10.3892/ijmm.2017.3327] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2016] [Accepted: 11/23/2017] [Indexed: 11/13/2022] Open
Abstract
Renal tubulointerstitial inflammation has an important role in fibrosis, which is the main pathogenetic alteration associated with chronic kidney disease (CKD). The left-right determination factor 1 (Lefty-1) gene pleiotropically and biologically regulates transforming growth factor, mitogen-activated protein kinase and other signaling pathways, and is considered to have a potential anti-inflammatory function. However, its role in renal tubulointerstitial inflammation, which is often a long-term consequence of renal fibrosis, is currently unknown. In the present study, the effects of adenovirus-mediated overexpression of Lefty-1 (Ad-Lefty-1-flag) on renal tubulointerstitial inflammation were determined using a mouse model of unilateral ureteral obstruction (UUO) and a rat renal tubular duct epithelial cell line (NRK-52E), which was treated with lipopolysaccharide (LPS). In vivo results indicated that the inflammatory response was increased in UUO mice, as evidenced by the increase in inflammatory cytokines and chemokines. Conversely, Lefty-1 significantly reversed the effects of UUO. Furthermore, the results of the in vitro study demonstrated that Lefty-1 significantly inhibited LPS-induced inflammatory marker expression in cultured NRK-52E cells via the nuclear factor (NF)-κB signaling pathway. These results suggested that Lefty-1 may ameliorate renal tubulointerstitial inflammation by suppressing NF-κB signaling. In conclusion, the findings of the present study indicated that Lefty-1 may be considered a potential novel therapeutic agent for inhibiting renal tubulointerstitial inflammation or even reversing the CKD process.
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Affiliation(s)
- Lijun Zhang
- Department of Urology, Minda Hospital Affiliated to Hubei Institute for Nationalities, Enshi, Hubei 445000, P.R. China
| | - Changgeng Xu
- Department of Urology, Wuhan Central Hospital, Wuhan, Hubei 430014, P.R. China
| | - Wei Hu
- Department of Urology, The First Affiliated Hospital of University of South of China, Hengyang, Hunan 421001, P.R. China
| | - Pin Wu
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Cong Qin
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
| | - Jie Zhang
- Department of Urology, Renmin Hospital of Wuhan University, Wuhan, Hubei 430060, P.R. China
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179
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Serum–glucocorticoid-regulated kinase 1 contributes to mechanical stretch-induced inflammatory responses in cardiac fibroblasts. Mol Cell Biochem 2017; 445:67-78. [DOI: 10.1007/s11010-017-3252-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Accepted: 12/10/2017] [Indexed: 01/29/2023]
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180
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Micanovic R, Khan S, Janosevic D, Lee ME, Hato T, Srour EF, Winfree S, Ghosh J, Tong Y, Rice SE, Dagher PC, Wu XR, El-Achkar TM. Tamm-Horsfall Protein Regulates Mononuclear Phagocytes in the Kidney. J Am Soc Nephrol 2017; 29:841-856. [PMID: 29180395 DOI: 10.1681/asn.2017040409] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Accepted: 11/01/2017] [Indexed: 12/20/2022] Open
Abstract
Tamm-Horsfall protein (THP), also known as uromodulin, is a kidney-specific protein produced by cells of the thick ascending limb of the loop of Henle. Although predominantly secreted apically into the urine, where it becomes highly polymerized, THP is also released basolaterally, toward the interstitium and circulation, to inhibit tubular inflammatory signaling. Whether, through this latter route, THP can also regulate the function of renal interstitial mononuclear phagocytes (MPCs) remains unclear, however. Here, we show that THP is primarily in a monomeric form in human serum. Compared with wild-type mice, THP-/- mice had markedly fewer MPCs in the kidney. A nonpolymerizing, truncated form of THP stimulated the proliferation of human macrophage cells in culture and partially restored the number of kidney MPCs when administered to THP-/- mice. Furthermore, resident renal MPCs had impaired phagocytic activity in the absence of THP. After ischemia-reperfusion injury, THP-/- mice, compared with wild-type mice, exhibited aggravated injury and an impaired transition of renal macrophages toward an M2 healing phenotype. However, treatment of THP-/- mice with truncated THP after ischemia-reperfusion injury mitigated the worsening of AKI. Taken together, our data suggest that interstitial THP positively regulates mononuclear phagocyte number, plasticity, and phagocytic activity. In addition to the effect of THP on the epithelium and granulopoiesis, this new immunomodulatory role could explain the protection conferred by THP during AKI.
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Affiliation(s)
| | | | | | | | | | - Edward F Srour
- Departments of Medicine.,Microbiology and Immunology, and
| | | | | | - Yan Tong
- Biostatistics, Indiana University, Indianapolis, Indiana
| | | | - Pierre C Dagher
- Departments of Medicine.,Department of Medicine, Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana; and
| | - Xue-Ru Wu
- Departments of Urology and Pathology, New York University and Manhattan Veterans Affairs, New York, New York
| | - Tarek M El-Achkar
- Departments of Medicine, .,Department of Medicine, Roudebush Veterans Affairs Medical Center, Indianapolis, Indiana; and
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181
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Hochane M, Raison D, Coquard C, Béraud C, Bethry A, Danilin S, Massfelder T, Barthelmebs M. Parathyroid hormone-related protein modulates inflammation in mouse mesangial cells and blunts apoptosis by enhancing COX-2 expression. Am J Physiol Cell Physiol 2017; 314:C242-C253. [PMID: 29141920 DOI: 10.1152/ajpcell.00018.2017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
Injury of mesangial cells (MC) is a prominent feature of glomerulonephritis. Activated MC secrete inflammatory mediators that induce cell apoptosis. Parathyroid hormone-related peptide (PTHrP) is a locally active cytokine that enhances cell survival and is upregulated by proinflammatory factors in many cell types. The aim of this study was to analyze the regulation of PTHrP expression by inflammatory cytokines and to evaluate whether PTHrP itself acts as a proinflammatory and/or survival factor on male murine MC in primary culture. Our results showed that IL-1β (10 ng/ml) and TNF-α (10 ng/ml) rapidly and transiently upregulated PTHrP expression in MC. The effects of IL-1β were both transcriptional and posttranscriptional, with stabilization of the PTHrP mRNA by human antigen R (HuR). Proteome profiler arrays showed that PTHrP itself enhanced cytokines within 2 h in cell lysates, mainly IL-17, IL-16, IL-1α, and IL-6. PTHrP also stimulated sustained expression (2-4 h) of chemokines, mainly regulated upon activation normal T cell expressed and secreted (RANTES)/C-C motif chemokine 5 (CCL5) and macrophage inflammatory protein-2 (MIP-2)/C-X-C motif chemokine 2 (CXCL2), thymus and activation-regulated chemokine (TARC)/CCL17, and interferon-inducible T cell α-chemoattractant (I-TAC)/CXCL11. Moreover, PTHrP markedly enhanced cyclooxygenase-2 (COX-2) expression and elicited its autoinduction through the activation of the NF-κB pathway. PTHrP induced MC survival via the COX-2 products, and PTHrP overexpression in MC blunted the apoptotic effects of IL-1β and TNF-α. Altogether, these findings suggest that PTHrP functions as a booster of glomerular inflammatory processes and may be a negative feedback loop preserving MC survival.
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Affiliation(s)
- Mazène Hochane
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France.,Fédération de Médecine Translationnelle, Strasbourg , France
| | - Denis Raison
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France
| | - Catherine Coquard
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France.,Fédération de Médecine Translationnelle, Strasbourg , France.,Université de Strasbourg , Strasbourg , France
| | - Claire Béraud
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France
| | - Audrey Bethry
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France
| | - Sabrina Danilin
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France
| | - Thierry Massfelder
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France.,Fédération de Médecine Translationnelle, Strasbourg , France.,Université de Strasbourg , Strasbourg , France
| | - Mariette Barthelmebs
- Institut National de la Santé et de la Recherche Médicale UMR S1113, Equipe Signalisation et Communication Cellulaires dans les Cancers du Rein et de la Prostate, Strasbourg , France.,Fédération de Médecine Translationnelle, Strasbourg , France.,Université de Strasbourg , Strasbourg , France
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182
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Cha BH, Shin SR, Leijten J, Li YC, Singh S, Liu JC, Annabi N, Abdi R, Dokmeci MR, Vrana NE, Ghaemmaghami AM, Khademhosseini A. Integrin-Mediated Interactions Control Macrophage Polarization in 3D Hydrogels. Adv Healthc Mater 2017; 6:10.1002/adhm.201700289. [PMID: 28782184 PMCID: PMC5677560 DOI: 10.1002/adhm.201700289] [Citation(s) in RCA: 149] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Revised: 06/17/2017] [Indexed: 12/23/2022]
Abstract
Adverse immune reactions prevent clinical translation of numerous implantable devices and materials. Although inflammation is an essential part of tissue regeneration, chronic inflammation ultimately leads to implant failure. In particular, macrophage polarity steers the microenvironment toward inflammation or wound healing via the induction of M1 and M2 macrophages, respectively. Here, this paper demonstrates that macrophage polarity within biomaterials can be controlled through integrin-mediated interactions between human monocytic THP-1 cells and collagen-derived matrix. Surface marker, gene expression, biochemical, and cytokine profiling consistently indicate that THP-1 cells within a biomaterial lacking cell attachment motifs yield proinflammatory M1 macrophages, whereas biomaterials with attachment sites in the presence of interleukin-4 (IL-4) induce an anti-inflammatory M2-like phenotype and propagate the effect of IL-4 in induction of M2-like macrophages. Importantly, integrin α2β1 plays a pivotal role as its inhibition blocks the induction of M2 macrophages. The influence of the microenvironment of the biomaterial over macrophage polarity is further confirmed by its ability to modulate the effect of IL-4 and lipopolysaccharide, which are potent inducers of M2 or M1 phenotypes, respectively. Thus, this study represents a novel, versatile, and effective strategy to steer macrophage polarity through integrin-mediated 3D microenvironment for biomaterial-based programming.
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Affiliation(s)
- Byung-Hyun Cha
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Su Ryon Shin
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Jeroen Leijten
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Developmental BioEngineering, MIRA Institute for Biomedical Technology and Technical Medicine, University of Twente, 7500, AE, Enschede, The Netherlands
| | - Yi-Chen Li
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Sonali Singh
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Julie C Liu
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Davidson School of Chemical Engineering and Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN, 47907, USA
| | - Nasim Annabi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Department of Chemical Engineering, Northeastern University, Boston, MA, 02115, USA
| | - Reza Abdi
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Transplant Research Center, Renal Division, Brigham and Women's Hospital and Children's Hospital, Boston, MA, 02115, USA
| | - Mehmet R Dokmeci
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
| | - Nihal Engin Vrana
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Fundamental Research Unit, Protip Medical, 8 Place de l'Hôpital, 67000, Strasbourg, France
- Institut National de la Santé et de la Recherche Médicale (INSERM), UMR-S 1121, "Biomatériaux et Bioingénierie", 11 rue Humann, 67085, Strasbourg Cedex, France
| | - Amir M Ghaemmaghami
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Division of Immunology, School of Life Sciences, Faculty of Medicine and Health Sciences, University of Nottingham, Nottingham, NG7 2RD, UK
| | - Ali Khademhosseini
- Biomaterials Innovation Research Center, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Cambridge, MA, 02139, USA
- Harvard-MIT Division of Health Sciences and Technology, Massachusetts Institute of Technology, Cambridge, MA, 02139, USA
- Wyss Institute for Biologically Inspired Engineering, Harvard University, Boston, MA, 02115, USA
- Department of Bioindustrial Technologies, College of Animal Bioscience and Technology, Konkuk University, Seoul, 143-701, Republic of Korea
- Nanotechnology Center, King Abdulaziz University, Jeddah, 21569, Saudi Arabia
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183
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Yang C, Vu-Quang H, Husum DMU, Tingskov SJ, Vinding MS, Nielsen T, Song P, Nielsen NC, Nørregaard R, Kjems J. Theranostic poly(lactic-co-glycolic acid) nanoparticle for magnetic resonance/infrared fluorescence bimodal imaging and efficient siRNA delivery to macrophages and its evaluation in a kidney injury model. NANOMEDICINE-NANOTECHNOLOGY BIOLOGY AND MEDICINE 2017; 13:2451-2462. [DOI: 10.1016/j.nano.2017.08.007] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2017] [Revised: 07/25/2017] [Accepted: 08/12/2017] [Indexed: 01/23/2023]
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184
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Zhao Y, Guo Y, Jiang Y, Zhu X, Liu Y, Zhang X. Mitophagy regulates macrophage phenotype in diabetic nephropathy rats. Biochem Biophys Res Commun 2017; 494:42-50. [PMID: 29061302 DOI: 10.1016/j.bbrc.2017.10.088] [Citation(s) in RCA: 55] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2017] [Accepted: 10/16/2017] [Indexed: 10/18/2022]
Abstract
Imbalance of M1/M2 macrophages phenotype activation is a key point in diabetic nephropathy (DN). Macrophages mainly exhibit M1 phenotype, which contributes to the inflammation and fibrosis in DN. Studies indicate that autophage plays an important role in M1/M2 activation. However, the effect of mitophage on M1/M2 macrophage phenotype transformation in DN is unknown. This study investigates the role of mitophage on macrophage polarization in DN. In vivo experiments show that macrophages are exhibited to M1 phenotype and display a lower level of mitophagy in the kidney of streptozocin (STZ)-induced diabetic rats. Additionally, inducible nitric oxide synthase (iNOS) expression is positive correlated with the P62 expression, while negative correlated with LC3. Electronic microscope analysis shows mitochondria swelling, crista decrease and lysosome reduction in DN rats compared with NC rats. In vitro, RAW264.7 macrophages switch to M1 phenotype under high glucose conditions. Mitophagy is downregulated in such high glucose induced M1 macrophages. Furthermore, macrophages tend to switch to the M1 phenotype, expressing higher iNOS and TNF-α when impair mitophagy by 3-MA. Rapamycin, an activator of mitophagy, signifcantly blocks high-glucose induced M1 makers (iNOS and TNF-α) expression, meanwhile enhances M2 makers (MR and Arg-1) expression. These results demonstrate that mitophage participates in the regulation of M1/M2 macrophage phenotype in diabetic nephropathy.
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Affiliation(s)
- Yu Zhao
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Yinfeng Guo
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Yuteng Jiang
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Xiaodong Zhu
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Yuqiu Liu
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China
| | - Xiaoliang Zhang
- Institute of Nephrology, Zhong Da Hospital, Southeast University, School of Medicine, Nanjing, Jiangsu, 210009, China.
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185
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Wang H, Wang J, Xia Y. Defective Suppressor of Cytokine Signaling 1 Signaling Contributes to the Pathogenesis of Systemic Lupus Erythematosus. Front Immunol 2017; 8:1292. [PMID: 29085365 PMCID: PMC5650678 DOI: 10.3389/fimmu.2017.01292] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2017] [Accepted: 09/26/2017] [Indexed: 12/19/2022] Open
Abstract
Systemic lupus erythematosus (SLE) is a complex autoimmune disease involving injuries in multiple organs and systems. Exaggerated inflammatory responses are characterized as end-organ damage in patients with SLE. Although the explicit pathogenesis of SLE remains unclear, increasing evidence suggests that dysregulation of cytokine signals contributes to the progression of SLE through the Janus kinase/signal transducer and activator of transcription (STAT) signaling pathway. Activated STAT proteins translocate to the cell nucleus and induce transcription of target genes, which regulate downstream cytokine production and inflammatory cell infiltration. The suppressor of cytokine signaling 1 (SOCS1) is considered as a classical inhibitor of cytokine signaling. Recent studies have demonstrated that SOCS1 expression is decreased in patients with SLE and in murine lupus models, and this negatively correlates with the magnitude of inflammation. Dysregulation of SOCS1 signals participates in various pathological processes of SLE such as hematologic abnormalities and autoantibody generation. Lupus nephritis is one of the most serious complications of SLE, and it correlates with suppressed SOCS1 signals in renal tissues. Moreover, SOCS1 insufficiency affects the function of several other organs, including skin, central nervous system, liver, and lungs. Therefore, SOCS1 aberrancy contributes to the development of both systemic and local inflammation in SLE patients. In this review, we discuss recent studies regarding the roles of SOCS1 in the pathogenesis of SLE and its therapeutic implications.
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Affiliation(s)
- Huixia Wang
- Department of Dermatology, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Jiaxing Wang
- Core Research Laboratory, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
| | - Yumin Xia
- Department of Dermatology, The Second Affiliated Hospital, School of Medicine, Xi'an Jiaotong University, Xi'an, China
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186
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Feng Y, Ren J, Gui Y, Wei W, Shu B, Lu Q, Xue X, Sun X, He W, Yang J, Dai C. Wnt/ β-Catenin-Promoted Macrophage Alternative Activation Contributes to Kidney Fibrosis. J Am Soc Nephrol 2017; 29:182-193. [PMID: 29021383 DOI: 10.1681/asn.2017040391] [Citation(s) in RCA: 164] [Impact Index Per Article: 23.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 08/27/2017] [Indexed: 01/15/2023] Open
Abstract
The Wnt/β-catenin pathway is crucial in normal development and throughout life, but aberrant activation of this pathway has been linked to kidney fibrosis, although the mechanisms involved remain incompletely determined. Here, we investigated the role of Wnt/β-catenin in regulating macrophage activation and the contribution thereof to kidney fibrosis. Treatment of macrophages with Wnt3a exacerbated IL-4- or TGFβ1-induced macrophage alternative (M2) polarization and the phosphorylation and nuclear translocation of STAT3 in vitro Conversely, inhibition of Wnt/β-catenin signaling prevented these IL-4- or TGFβ1-induced processes. In a mouse model, induced deletion of β-catenin in macrophages attenuated the fibrosis, macrophage accumulation, and M2 polarization observed in the kidneys of wild-type littermates after unilateral ureter obstruction. This study shows that activation of Wnt/β-catenin signaling promotes kidney fibrosis by stimulating macrophage M2 polarization.
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Affiliation(s)
- Ye Feng
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Jiafa Ren
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Yuan Gui
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Wei Wei
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Bingyan Shu
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Qingmiao Lu
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xian Xue
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Xiaoli Sun
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Weichun He
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Junwei Yang
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
| | - Chunsun Dai
- Department of Internal Medicine, Center for Kidney Disease, Second Affiliated Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
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187
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He L, Wei Q, Liu J, Yi M, Liu Y, Liu H, Sun L, Peng Y, Liu F, Venkatachalam MA, Dong Z. AKI on CKD: heightened injury, suppressed repair, and the underlying mechanisms. Kidney Int 2017; 92:1071-1083. [PMID: 28890325 DOI: 10.1016/j.kint.2017.06.030] [Citation(s) in RCA: 268] [Impact Index Per Article: 38.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2017] [Revised: 06/13/2017] [Accepted: 06/19/2017] [Indexed: 02/07/2023]
Abstract
Acute kidney injury (AKI) and chronic kidney disease (CKD) are interconnected. Although AKI-to-CKD transition has been intensively studied, the information of AKI on CKD is very limited. Nonetheless, AKI, when occurring in patients with CKD, is known to be more severe and difficult to recover. CKD is associated with significant changes in cell signaling in kidney tissues, including the activation of transforming growth factor-β, p53, hypoxia-inducible factor, and major developmental pathways. At the cellular level, CKD is characterized by mitochondrial dysfunction, oxidative stress, and aberrant autophagy. At the tissue level, CKD is characterized by chronic inflammation and vascular dysfunction. These pathologic changes may contribute to the heightened sensitivity of, and nonrecovery from, AKI in patients with CKD.
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Affiliation(s)
- Liyu He
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Qingqing Wei
- Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Jing Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Mixuan Yi
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA
| | - Yu Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Hong Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Lin Sun
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Youming Peng
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Fuyou Liu
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
| | - Manjeri A Venkatachalam
- Department of Pathology, University of Texas Health Science Center at San Antonio, San Antonio, Texas, USA
| | - Zheng Dong
- Department of Nephrology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China; Department of Cellular Biology and Anatomy, Medical College of Georgia at Augusta University and Charlie Norwood VA Medical Center, Augusta, Georgia, USA.
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188
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Liang H, Zhang Z, Yan J, Wang Y, Hu Z, Mitch WE, Wang Y. The IL-4 receptor α has a critical role in bone marrow-derived fibroblast activation and renal fibrosis. Kidney Int 2017; 92:1433-1443. [PMID: 28739140 DOI: 10.1016/j.kint.2017.04.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 04/12/2017] [Accepted: 04/18/2017] [Indexed: 12/15/2022]
Abstract
Renal fibrosis is a common pathway leading to the progression of chronic kidney disease, and bone marrow-derived fibroblasts contribute significantly to the development of renal fibrosis. However, the signaling mechanisms underlying the activation of these fibroblasts are not completely understood. Here, we examined the role of IL-4 receptor α (IL-4Rα) in the activation of myeloid fibroblasts in two experimental models of renal fibrosis. Compared with wild-type mice, IL-4Rα knockout mice accumulated fewer bone marrow-derived fibroblasts and myofibroblasts in their kidneys. IL-4Rα deficiency suppressed the expression of α-smooth muscle actin, extracellular matrix proteins and the development of renal fibrosis. Furthermore, IL-4Rα deficiency inhibited the activation of signal transducer and activator of transcription 6 (STAT6) in the kidney. Moreover, wild-type mice engrafted with bone marrow cells from IL-4Rα knockout mice exhibited fewer myeloid fibroblasts in the kidney and displayed less severe renal fibrosis following ureteral obstructive injury compared with wild-type mice engrafted with wild-type bone marrow cells. In vitro, IL-4 activated STAT6 and stimulated expression of α-smooth muscle actin and fibronectin in mouse bone marrow monocytes. This was abolished in the absence of IL-4Rα. Thus, IL-4Rα plays an important role in bone marrow-derived fibroblast activation, resulting in extracellular matrix protein production and fibrosis development. Hence, the IL-4Rα/STAT6 signaling pathway may serve as a novel therapeutic target for chronic kidney disease.
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Affiliation(s)
- Hua Liang
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA; Department of Anesthesiology, Affiliated Foshan Hospital of Sun Yat-Sen University, Foshan, China
| | - Zhengmao Zhang
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Jingyin Yan
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Yuguo Wang
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Zhaoyong Hu
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - William E Mitch
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA
| | - Yanlin Wang
- Selzman Institute for Kidney Health and Section of Nephrology, Department of Medicine, Baylor College of Medicine, Houston, Texas, USA; Center for Translational Research on Inflammatory Diseases and Renal Section, Michael E. DeBakey Veterans Affairs Medical Center, Houston, Texas, USA.
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189
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Low white blood cell count is independently associated with chronic kidney disease progression in the elderly: the CKD-ROUTE study. Clin Exp Nephrol 2017; 22:291-298. [PMID: 28699033 DOI: 10.1007/s10157-017-1441-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Accepted: 07/03/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Elevated white blood cell (WBC) count is a well-known predictor of chronic kidney disease (CKD) progression. However, elderly patients commonly fail to develop a high WBC count in response to several diseased states and may instead present a low WBC count. Therefore, we hypothesized that low WBC count, in addition to high WBC count, is associated with CKD progression in the elderly. METHODS We conducted a prospective cohort study using 3-year follow-up data from the CKD Research of Outcomes in Treatment and Epidemiology study. In the present study, participants aged over 60 years with pre-dialysis CKD stages G2-G5 were eligible. Patients were stratified into three groups according to WBC count using tertiles (T). The primary outcome was a composite of end-stage renal disease and a 50% reduction in estimated glomerular filtration rate. Data were analyzed using Cox proportional hazard models with adjustments for covariates. RESULTS We enrolled 697 patients (males, 69%). The median WBC count was 6100 cells/µl (T1, <5400, n = 222; T2, 5400-6900, n = 235; T3, ≥6900, n = 240). During a median follow-up of 868 days, the primary outcome was observed in 170 patients, whereas 54 patients died. T1 and T3 had significantly higher hazard ratios (HR) than T2 (T1, HR 1.69, 95% confidence interval 1.14-2.51; T3, HR 1.63, 95% confidence interval 1.10-2.41). Moreover, T1 had a significantly higher adjusted HR (1.54, 95% confidence interval 1.00-2.37). CONCLUSION Low WBC count is independently associated with CKD progression in the elderly.
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190
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Martin-Sanchez D, Poveda J, Fontecha-Barriuso M, Ruiz-Andres O, Sanchez-Niño MD, Ruiz-Ortega M, Ortiz A, Sanz AB. Targeting of regulated necrosis in kidney disease. Nefrologia 2017. [PMID: 28647049 DOI: 10.1016/j.nefro.2017.04.004] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The term acute tubular necrosis was thought to represent a misnomer derived from morphological studies of human necropsies and necrosis was thought to represent an unregulated passive form of cell death which was not amenable to therapeutic manipulation. Recent advances have improved our understanding of cell death in acute kidney injury. First, apoptosis results in cell loss, but does not trigger an inflammatory response. However, clumsy attempts at interfering with apoptosis (e.g. certain caspase inhibitors) may trigger necrosis and, thus, inflammation-mediated kidney injury. Second, and most revolutionary, the concept of regulated necrosis emerged. Several modalities of regulated necrosis were described, such as necroptosis, ferroptosis, pyroptosis and mitochondria permeability transition regulated necrosis. Similar to apoptosis, regulated necrosis is modulated by specific molecules that behave as therapeutic targets. Contrary to apoptosis, regulated necrosis may be extremely pro-inflammatory and, importantly for kidney transplantation, immunogenic. Furthermore, regulated necrosis may trigger synchronized necrosis, in which all cells within a given tubule die in a synchronized manner. We now review the different modalities of regulated necrosis, the evidence for a role in diverse forms of kidney injury and the new opportunities for therapeutic intervention.
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Affiliation(s)
- Diego Martin-Sanchez
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Jonay Poveda
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Miguel Fontecha-Barriuso
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Olga Ruiz-Andres
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - María Dolores Sanchez-Niño
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Marta Ruiz-Ortega
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Alberto Ortiz
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain
| | - Ana Belén Sanz
- Research Institute-Fundación Jiménez Díaz, Autónoma University, Madrid, Spain; IRSIN, Madrid, Spain; REDINREN, Madrid, Spain.
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191
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Inflammatory cell infiltration and resolution of kidney inflammation is orchestrated by the cold-shock protein Y-box binding protein-1. Kidney Int 2017; 92:1157-1177. [PMID: 28610763 DOI: 10.1016/j.kint.2017.03.035] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Revised: 03/01/2017] [Accepted: 03/23/2017] [Indexed: 11/22/2022]
Abstract
Tubular cells recruit monocytic cells in inflammatory tubulointerstitial kidney diseases. The cell-cell communication that establishes pro- or anti-inflammatory activities is mainly influenced by cytokines, reactive oxygen species, nitric oxide, and phagocytosis. Key proteins orchestrating these processes such as cold-shock proteins linked with chemoattraction and cell maturation have been identified. The prototypic member of the cold-shock protein family, Y-box binding protein (YB)-1, governs specific phenotypic alterations in monocytic cells and was explored in the present study. Following tubulointerstitial injury by unilateral ureteral obstruction, increased inflammatory cell infiltration and tubular cell CCL5 expression was found in conditional Ybx1 knockout animals with specific depletion in monocytes/macrophages (YB-1ΔLysM). Furthermore, YB-1ΔLysM mice exhibit enhanced tissue damage, myofibroblast activation, and fibrosis. To investigate relevant molecular mechanism(s), we utilized bone marrow-derived macrophage cultures and found that YB-1-deficient macrophages display defects in cell polarization and function, including reduced proliferation and nitric oxide production, loss of phagocytic activity, and failure to upregulate IL-10 and CCL5 expression in response to inflammatory stimuli. Co-culture with primary tubular cells confirmed these findings. Thus, monocytic YB-1 has prominent and distinct roles for cellular feed-forward crosstalk and resolution of inflammatory processes by its ability to regulate cell differentiation and cytokine/chemokine synthesis.
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192
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Mori da Cunha MGMC, Zia S, Beckmann DV, Carlon MS, Arcolino FO, Albersen M, Pippi NL, Graça DL, Gysemans C, Carmeliet P, Levtchenko E, Deprest J, Toelen J. Vascular Endothelial Growth Factor Up-regulation in Human Amniotic Fluid Stem Cell Enhances Nephroprotection After Ischemia-Reperfusion Injury in the Rat. Crit Care Med 2017; 45:e86-e96. [PMID: 27548820 DOI: 10.1097/ccm.0000000000002020] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
OBJECTIVE To evaluate if the up-regulation of vascular endothelial growth factor strengthens the protective effect of amniotic fluid stem cells in a renal ischemia-reperfusion injury model. DESIGN Randomized animal study. SETTINGS University research laboratory. SUBJECTS A total of 40 males 12-week-old Wistar rats were subjected to ischemia-reperfusion and assigned to four groups: amniotic fluid stem cells, vascular endothelial growth factor-amniotic fluid stem cells in two different doses, and vehicle. Ten animals were used as sham-controls. INTERVENTION Six hours after induction of renal ischemia-reperfusion injury, amniotic fluid stem cells, vascular endothelial growth factor-amniotic fluid stem cells in two different doses, or vehicle were injected intraarterially. MEASUREMENTS AND MAIN RESULTS Analyses were performed at 24 hours, 48 hours, and 2 months after treatment. Outcome measures included serum creatinine, urine microprotenuira, and immunohistomorphometric analyses. Vascular endothelial growth factor-amniotic fluid stem cells induced a significantly higher nephroprotection than amniotic fluid stem cells. This effect was mediated mainly by immunomodulation, which led to lower macrophage infiltration and higher presence of regulatory T cell after ischemia-reperfusion injury. At medium term, it inhibited the progression toward chronic kidney disease. Vascular endothelial growth factor-amniotic fluid stem cells can worsen the ischemia-reperfusion injury when delivered in a high dose. CONCLUSIONS Up-regulation of vascular endothelial growth factor enhances the therapeutic effect of human amniotic fluid stem cells in rats with renal ischemia-reperfusion injury, mainly by mitogenic, angiogenic, and anti-inflammatory mechanisms.
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Affiliation(s)
- Marina Gabriela Monteiro Carvalho Mori da Cunha
- 1Department of Development and Regeneration, Organ System Cluster, Fetal Therapy group, Group Biomedical Sciences, KU Leuven, Leuven, Belgium. 2Experimental Veterinary Surgery Laboratory, Department of Small Animals, Universidade Federal de Santa Maria, Santa Maria, Brazil. 3Department of Pharmaceutical and Pharmacological Sciences, Molecular Virology and Gene Therapy, Group Biomedical Sciences, KU Leuven, Leuven, Belgium. 4Department of Development and Regeneration, Organ System Cluster, Laboratory of Pediatric Nephrology, Group Biomedical Sciences, KU Leuven, Leuven, Belgium. 5Department of Urology, University Hospitals Leuven, Leuven, Belgium. 6Department of Clinical and Experimental Medicine, Clinical and Experimental Endocrinology, Leuven, Belgium. 7Department of Oncology, Vesalius Research Center, Laboratory of Angiogenesis and Vascular Metabolism, VIB, KU Leuven, Leuven, Belgium. 8Department of Obstetrics and Gynecology, University Hospitals Leuven, Leuven, Belgium. 9Department of Pediatrics, University Hospitals Leuven, Leuven, Belgium
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193
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Li J, Yu YF, Liu CH, Wang CM. Significance of M2 macrophages in glomerulonephritis with crescents. Pathol Res Pract 2017; 213:1215-1220. [PMID: 28554749 DOI: 10.1016/j.prp.2017.04.011] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/20/2016] [Revised: 03/23/2017] [Accepted: 04/12/2017] [Indexed: 01/17/2023]
Abstract
OBJECTIVES CD163 and CD206, markers of M2 macrophages, possesses anti-inflammatory properties. This study aims to investigate the clinicopathologic significance of M2 macrophages in patients of glomerulonephritis with crescents. METHODS Renal tissue samples from patients of glomerulonephritis with more than 30% cell or cell-fibrous crescents, including lupus nephritis (LN, n=14), anti-neutrophil cytoplasmic antibody-associated vasculitis (AAV, n=14), IgA nephropathy(IgAN) (n=11), Henoch Schonlein purpura glomerulonephritis(HSPGN)(n=8)were included in this study. The expression of CD163, CD206 and CD68 in renal tissues was detected by immunohistochemistry or immunofluorescence. RESULTS (1) CD163 was mainly expressed in cell or cell-fibrous crescents, proliferative glomerular lesions and acute tubulointerstitial injury. There were numerous CD163-positive cells in LN and AAV in comparison with IgAN and HSPGN. (2) CD206-positive cells were mainly observed in acute tubulointerstitial injury, and proliferative glomerular lesions, especially in LN. Patients with LN had numerous CD206-positive cells in glomerular than other groups. The number of CD163-positive cells and CD206-positive cells in acute tubulointerstitial lesions of LN and AAV were more than IgAN and HSPGN. (3) Both the number of CD163-positive cells and CD206-positive cells in acute tubulointerstitial lesions negatively correlated to estimated glomerular filtration rate. (4) In LN, activity index (AI) positively correlated with the number of CD206-positive cells and CD163-positive cells. Dual staining showed that CD163-positive cells and CD206-positive cells also expressed CD68. CONCLUSIONS CD163-positive cells and CD206-positive cells, subpopulation of macrophages, which were involved in the pathogenesis of active crescentic glomerulonephritis, especially in LN and AAV.
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Affiliation(s)
- Jun Li
- Department of Nephrology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, Jiangsu, China.
| | - Ya-Fen Yu
- Department of Nephrology, The Affiliated Hospital of Jiangnan University, Wuxi 214062, Jiangsu, China
| | - Chang-Hua Liu
- Department of Nephrology, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
| | - Cui-Mei Wang
- Department of Nephrology, Clinical Medical College, Yangzhou University, Yangzhou 225001, Jiangsu, China
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194
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Omega-3 Polyunsaturated Fatty Acids Attenuate Fibroblast Activation and Kidney Fibrosis Involving MTORC2 Signaling Suppression. Sci Rep 2017; 7:46146. [PMID: 28393852 PMCID: PMC5385873 DOI: 10.1038/srep46146] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2016] [Accepted: 03/13/2017] [Indexed: 02/07/2023] Open
Abstract
Epidemiologic studies showed the correlation between the deficiency of omega-3 polyunsaturated fatty acids (n-3 PUFAs) and the progression of chronic kidney diseases (CKD), however, the role and mechanisms for n-3 PUFAs in protecting against kidney fibrosis remain obscure. In this study, NRK-49F cells, a rat kidney interstitial fibroblast cell line, were stimulated with TGFβ1. A Caenorhabditis elegans fat-1 transgenic mouse model in which n-3 PUFAs are endogenously produced from n-6 PUFAs owing to the expression of n-3 fatty acid desaturase were deployed. Docosahexaenoic acid (DHA), one member of n-3 PUFAs family, could suppress TGFβ1-induced fibroblast activation at a dose and time dependent manner. Additionally, DHA could largely inhibit TGFβ1-stimulated Akt but not S6 or Smad3 phosphorylation at a time dependent manner. To decipher the role for n-3 PUFAs in protecting against kidney fibrosis, fat-1 transgenic mice were operated with unilateral ureter obstruction (UUO). Compared to the wild types, fat-1 transgenics developed much less kidney fibrosis and inflammatory cell accumulation accompanied by less p-Akt (Ser473), p-Akt (Thr308), p-S6 and p-Smad3 in kidney tissues at day 7 after UUO. Thus, n-3 PUFAs can attenuate fibroblast activation and kidney fibrosis, which may be associated with the inhibition of mTORC2 signaling.
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195
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Zhou L, Zhuo H, Ouyang H, Liu Y, Yuan F, Sun L, Liu F, Liu H. Glycoprotein non-metastatic melanoma protein b (Gpnmb) is highly expressed in macrophages of acute injured kidney and promotes M2 macrophages polarization. Cell Immunol 2017; 316:53-60. [PMID: 28433199 DOI: 10.1016/j.cellimm.2017.03.006] [Citation(s) in RCA: 65] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2016] [Revised: 03/23/2017] [Accepted: 03/29/2017] [Indexed: 01/22/2023]
Abstract
Acute kidney injury (AKI) is an increasingly common disorder that is strongly linked to short- and long-term morbidity and mortality. During AKI process, macrophages, one of the important immune response cells, can polarize into M1 and M2 subtype from M0 subtype. It is well-known that M1 macrophages play a pro inflammatory role while M2 macrophages play an anti-inflammatory role. Glycoprotein non-metastatic melanoma protein b (Gpnmb) is a glycosylated transmembrane protein highly expressed in numerous cells, including osteoblasts, dendritic cells and macrophages. Gpnmb serves as a negative regulator of inflammation in macrophages and has a protective effect on injuries. In acute kidney injury, the macrophage has been shown diverse roles depending on different phenotype. This study provided gene expression and protein expression evidence that Gpnmb was highly expressed in M2 macrophages in the damaged areas of kidney after ischemia-reperfusion injury. Then, we successful isolated and culture mouse bone marrow-derived macrophages (BMMφ) and found that Gpnmb showed different expression levels in M0, M1 and M2 BMMφ: lowest in M1, highest in M2. After knocking down Gpnmb with si-Gpnmb, BMMφ M2 polarization and secretion of anti-inflammatory cytokines IL-10 and TGF-β were inhibited, while M1 polarization and secretion of proinflammatory cytokines IL-1β and TNF-α were promoted. Moreover, IL-4-STAT6 pathway was involved in the promotion of M2 polarization by Gpnmb. Taken together, Gpnmb may serve as a potential biomarker of AKI and play a protective role against the AKI by modulating the polarization of macrophage.
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Affiliation(s)
- Letian Zhou
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Hui Zhuo
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Huiyu Ouyang
- Nephrology Department, The 331 Hospital of Zhuzhou, Zhuzhou 412200, PR China
| | - Yexin Liu
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Fang Yuan
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Lin Sun
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Fuyou Liu
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China
| | - Hong Liu
- Nephrology Department, The Second Xiangya Hospital, Central South University, Key Lab of Kidney Disease and Blood Purification in Hunan, Changsha 410011, PR China.
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196
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Graney PL, Lurier EB, Spiller KL. Biomaterials and Bioactive Factor Delivery Systems for the Control of Macrophage Activation in Regenerative Medicine. ACS Biomater Sci Eng 2017; 4:1137-1148. [PMID: 33418652 DOI: 10.1021/acsbiomaterials.6b00747] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Macrophages play an important role in tissue repair, regeneration, and the ability of biomaterials to mediate these processes. Macrophages are highly plastic cells that exhibit altered behavior in response to changes in the microenvironment. With the growing knowledge of the roles that different macrophage phenotypes play in specific pathologies and/or injuries, researchers are now focusing on designing biomaterials to actively control macrophage behavior and promote healing outcomes. In this review, we highlight a variety of biomaterial strategies for controlling macrophage phenotype in chronic wounds, tissue defects, and inflammatory conditions, although these strategies can be applied to many other applications. In particular, we highlight the different situations in which biomaterials should inhibit or promote M1 or M2 activation, or both, for therapeutic outcomes.
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Affiliation(s)
- Pamela L Graney
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Emily B Lurier
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
| | - Kara L Spiller
- School of Biomedical Engineering, Science, and Health Systems, Drexel University, Philadelphia, Pennsylvania 19104, United States
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197
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Behrends DA, Hui D, Gao C, Awlia A, Al-Saran Y, Li A, Henderson JE, Martineau PA. Defective Bone Repair in C57Bl6 Mice With Acute Systemic Inflammation. Clin Orthop Relat Res 2017; 475:906-916. [PMID: 27844403 PMCID: PMC5289198 DOI: 10.1007/s11999-016-5159-7] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Accepted: 11/03/2016] [Indexed: 01/31/2023]
Abstract
BACKGROUND Bone repair is initiated with a local inflammatory response to injury. The presence of systemic inflammation impairs bone healing and often leads to malunion, although the underlying mechanisms remain poorly defined. Our research objective was to use a mouse model of cortical bone repair to determine the effect of systemic inflammation on cells in the bone healing microenvironment. QUESTION/PURPOSES: (1) Does systemic inflammation, induced by lipopolysaccharide (LPS) administration affect the quantity and quality of regenerating bone in primary bone healing? (2) Does systemic inflammation alter vascularization and the number or activity of inflammatory cells, osteoblasts, and osteoclasts in the bone healing microenvironment? METHODS Cortical defects were drilled in the femoral diaphysis of female and male C57BL/6 mice aged 5 to 9 months that were treated with daily systemic injections of LPS or physiologic saline as control for 7 days. Mice were euthanized at 1 week (Control, n = 7; LPS, n = 8), 2 weeks (Control, n = 7; LPS, n = 8), and 6 weeks (Control, n = 9; LPS, n = 8) after surgery. The quantity (bone volume per tissue volume [BV/TV]) and microarchitecture (trabecular separation and thickness, porosity) of bone in the defect were quantified with time using microCT. The presence or activity of vascular endothelial cells (CD34), macrophages (F4/80), osteoblasts (alkaline phosphatase [ALP]), and osteoclasts (tartrate-resistant acid phosphatase [TRAP]) were evaluated using histochemical analyses. RESULTS Only one of eight defects was bridged completely 6 weeks after surgery in LPS-injected mouse bones compared with seven of nine defects in the control mouse bones (odds ratio [OR], 0.04; 95% CI, 0.003-0.560; p = 0.007). The decrease in cortical bone in LPS-treated mice was reflected in reduced BV/TV (21% ± 4% vs 39% ± 10%; p < 0.01), increased trabecular separation (240 ± 36 μm vs 171 ± 29 μm; p < 0.01), decreased trabecular thickness (81 ± 18 μm vs 110 ± 22 μm; p = 0.02), and porosity (79% ± 4% vs 60% ± 10%; p < 0.01) at 6 weeks postoperative. Defective healing was accompanied by decreased CD34 (1.1 ± 0.6 vs 3.4 ± 0.9; p < 0.01), ALP (1.9 ± 0.9 vs 6.1 ± 3.2; p = 0.03), and TRAP (3.3 ± 4.7 vs 7.2 ± 4.0; p = 0.01) activity, and increased F4/80 (13 ± 2.6 vs 6.8 ± 1.7; p < 0.01) activity at 2 weeks postoperative. CONCLUSION The results indicate that LPS-induced systemic inflammation reduced the amount and impaired the quality of bone regenerated in mouse femurs. The effects were associated with impaired revascularization, decreased bone turnover by osteoblasts and osteoclasts, and by increased catabolic activity by macrophages. CLINICAL RELEVANCE Results from this preclinical study support clinical observations of impaired primary bone healing in patients with systemic inflammation. Based on our data, local administration of VEGF in the callus to stimulate revascularization, or transplantation of stem cells to enhance bone turnover represent potentially feasible approaches to improve outcomes in clinical practice.
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Affiliation(s)
- D. A. Behrends
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC Canada
| | - D. Hui
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.17091.3e0000000122889830Microbiology & Immunology Program, University of British Columbia, Vancouver, BC Canada
| | - C. Gao
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC Canada
| | - A. Awlia
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC Canada
| | - Y. Al-Saran
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC Canada
| | - A. Li
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada
| | - J. E. Henderson
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Medicine, Faculty of Medicine, McGill University, Montreal, QC Canada ,grid.416099.3000000012218112XBone Engineering Labs, Research Institute-McGill University Health Centre, Surgical Research, C10.148.6, Montreal General Hospital, 1650 Cedar Ave., Montreal, QC H3G 1A4 Canada
| | - P. A. Martineau
- grid.63984.300000000090644811Bone Engineering Laboratories, Research Institute-McGill University Health Center, Montreal, QC Canada ,grid.14709.3b0000000419368649Experimental Surgery, Faculty of Medicine, McGill University, Montreal, QC Canada
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198
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Lurier EB, Dalton D, Dampier W, Raman P, Nassiri S, Ferraro NM, Rajagopalan R, Sarmady M, Spiller KL. Transcriptome analysis of IL-10-stimulated (M2c) macrophages by next-generation sequencing. Immunobiology 2017; 222:847-856. [PMID: 28318799 DOI: 10.1016/j.imbio.2017.02.006] [Citation(s) in RCA: 120] [Impact Index Per Article: 17.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Accepted: 02/15/2017] [Indexed: 01/23/2023]
Abstract
Alternatively activated "M2" macrophages are believed to function during late stages of wound healing, behaving in an anti-inflammatory manner to mediate the resolution of the pro-inflammatory response caused by "M1" macrophages. However, the differences between two main subtypes of M2 macrophages, namely interleukin-4 (IL-4)-stimulated "M2a" macrophages and IL-10-stimulated "M2c" macrophages, are not well understood. M2a macrophages are characterized by their ability to inhibit inflammation and contribute to the stabilization of angiogenesis. However, the role and temporal profile of M2c macrophages in wound healing are not known. Therefore, we performed next generation sequencing (RNA-seq) to identify biological functions and gene expression signatures of macrophages polarized in vitro with IL-10 to the M2c phenotype in comparison to M1 and M2a macrophages and an unactivated control (M0). We then explored the expression of these gene signatures in a publicly available data set of human wound healing. RNA-seq analysis showed that hundreds of genes were upregulated in M2c macrophages compared to the M0 control, with thousands of alternative splicing events. Following validation by Nanostring, 39 genes were found to be upregulated by M2c macrophages compared to the M0 control, and 17 genes were significantly upregulated relative to the M0, M1, and M2a phenotypes (using an adjusted p-value cutoff of 0.05 and fold change cutoff of 1.5). Many of the identified M2c-specific genes are associated with angiogenesis, matrix remodeling, and phagocytosis, including CD163, MMP8, TIMP1, VCAN, SERPINA1, MARCO, PLOD2, PCOCLE2 and F5. Analysis of the macrophage-conditioned media for secretion of matrix-remodeling proteins showed that M2c macrophages secreted higher levels of MMP7, MMP8, and TIMP1 compared to the other phenotypes. Interestingly, temporal gene expression analysis of a publicly available microarray data set of human wound healing showed that M2c-related genes were upregulated at early times after injury, similar to M1-related genes, while M2a-related genes appeared at later stages or were downregulated after injury. While further studies are required to confirm the timing and role of M2c macrophages in vivo, these results suggest that M2c macrophages may function at early stages of wound healing. Identification of markers of the M2c phenotype will allow more detailed investigations into the role of M2c macrophages in vivo.
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Affiliation(s)
- Emily B Lurier
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA
| | - Donald Dalton
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA
| | - Will Dampier
- Department of Microbiology and Immunology, Drexel University College of Medicine, 245 N Broad St. Philadelphia, PA, 19107, USA
| | - Pichai Raman
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA; Deparment of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA; Center for Data-Driven Discovery in Biomedicine, Children's Hospital of Philadelphia, Philadelphia, PA, USA
| | - Sina Nassiri
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA
| | - Nicole M Ferraro
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA
| | - Ramakrishan Rajagopalan
- Deparment of Biomedical and Health Informatics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Mahdi Sarmady
- Division of Genomic Diagnostics, Children's Hospital of Philadelphia, Philadelphia, PA, 19104, USA
| | - Kara L Spiller
- School of Biomedical Engineering, Science and Health Systems, Drexel University, 3141 Chestnut Street, Philadelphia, PA, 19104, USA.
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199
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Danelli L, Madjene LC, Madera-Salcedo I, Gautier G, Pacreau E, Ben Mkaddem S, Charles N, Daugas E, Launay P, Blank U. Early Phase Mast Cell Activation Determines the Chronic Outcome of Renal Ischemia–Reperfusion Injury. THE JOURNAL OF IMMUNOLOGY 2017; 198:2374-2382. [DOI: 10.4049/jimmunol.1601282] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/22/2016] [Accepted: 01/04/2017] [Indexed: 01/25/2023]
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200
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Bus P, Pierneef L, Bor R, Wolterbeek R, van Es LA, Rensen PC, de Heer E, Havekes LM, Bruijn JA, Berbée JF, Baelde HJ. Apolipoprotein C-I plays a role in the pathogenesis of glomerulosclerosis. J Pathol 2017; 241:589-599. [PMID: 27976371 DOI: 10.1002/path.4859] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2016] [Revised: 10/27/2016] [Accepted: 11/29/2016] [Indexed: 12/22/2022]
Abstract
Diabetic nephropathy is the leading cause of end-stage renal disease. Diabetic patients have increased plasma concentrations of apolipoprotein C-I (apoCI), and meta-analyses found that a polymorphism in APOC1 is associated with an increased risk of developing nephropathy. To investigate whether overexpressing apoCI contributes to the development of kidney damage, we studied renal tissue and peritoneal macrophages from APOC1 transgenic (APOC1-tg) mice and wild-type littermates. In addition, we examined renal material from autopsied diabetic patients with and without diabetic nephropathy and from autopsied control subjects. We found that APOC1-tg mice, but not wild-type mice, develop albuminuria, renal dysfunction, and glomerulosclerosis with increased numbers of glomerular M1 macrophages. Moreover, compared to wild-type macrophages, stimulated macrophages isolated from APOC1-tg mice have increased cytokine expression, including TNF-alpha and TGF-beta, both of which are known to increase the production of extracellular matrix proteins in mesangial cells. These results suggest that APOC1 expression induces glomerulosclerosis, potentially by increasing the cytokine response in macrophages. Furthermore, we detected apoCI in the kidneys of diabetic patients, but not in control kidneys. Moreover, patients with diabetic nephropathy have significantly more apoCI present in glomeruli compared to diabetic patients without nephropathy, suggesting that apoCI could be involved in the development of diabetic nephropathy. ApoCI co-localized with macrophages. Therefore, apoCI is a promising new therapeutic target for patients at risk of developing nephropathy. Copyright © 2016 Pathological Society of Great Britain and Ireland. Published by John Wiley & Sons, Ltd.
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Affiliation(s)
- Pascal Bus
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Louise Pierneef
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Rosalie Bor
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Ron Wolterbeek
- Department of Medical Statistics and Bioinformatics, Leiden University Medical Center, Leiden, The Netherlands
| | - Leendert A van Es
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Patrick Cn Rensen
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Emile de Heer
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Louis M Havekes
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Jan A Bruijn
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
| | - Jimmy F Berbée
- Department of Medicine, Division of Endocrinology, Leiden University Medical Center, Leiden, The Netherlands.,Einthoven Laboratory for Experimental Vascular Medicine, Leiden University Medical Center, Leiden, The Netherlands
| | - Hans J Baelde
- Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
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