1
|
Rojas-Canales DM, Wong SW, Tucker EJ, Fedele AO, McNicholas K, Mehdorn AS, Gleadle JM. The transcriptome of early compensatory kidney growth reveals cell and time specific responses. iScience 2024; 27:110608. [PMID: 39220259 PMCID: PMC11363579 DOI: 10.1016/j.isci.2024.110608] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2024] [Revised: 04/24/2024] [Accepted: 07/25/2024] [Indexed: 09/04/2024] Open
Abstract
Following kidney removal, the remaining kidney enlarges and increases its function. The mechanism and signals driving this compensatory kidney hypertrophy and the enlargement of its constituent kidney cells remains elusive. RNA-seq studies in mice undergoing hypertrophy 24, 48, and 72 h following nephrectomy were undertaken to understand the early transcriptional changes. This revealed substantial enhancement of cholesterol biosynthesis pathways, increases in mitochondrial gene expression and cell cycle perturbations. Single nuclei RNA-seq delineated cell specific changes at 24 h post nephrectomy and showed that sterol binding protein 2 (SREBP2) activity increases in medullary thick ascending limb cells in keeping with promotion of cholesterol synthesis. Cultured renal tubular cells were examined for insulin-like growth factor-1 (IGF-1) stimulated hypertrophy and SREBP2 was found to be required for increase in cell size. This work describes the early cell specific growth pathways mediating cellular and kidney hypertrophy with an intriguing role for cholesterol synthesis.
Collapse
Affiliation(s)
- Darling M. Rojas-Canales
- Department of Renal Medicine, Southern Adelaide Local Health Network, Flinders Medical Centre, Bedford Park, SA, Australia
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
| | - Soon Wei Wong
- Department of Renal Medicine, Southern Adelaide Local Health Network, Flinders Medical Centre, Bedford Park, SA, Australia
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
| | - Elise J. Tucker
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
| | - Anthony O. Fedele
- Department of Renal Medicine, Southern Adelaide Local Health Network, Flinders Medical Centre, Bedford Park, SA, Australia
| | - Kym McNicholas
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
| | - Anne-Sophie Mehdorn
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
- Department of General, Abdominal, Thoracic, Transplantation and Paediatric Surgery, University Hospital Schleswig-Holstein, Campus Kiel, Kiel, Germany
| | - Jonathan M. Gleadle
- Department of Renal Medicine, Southern Adelaide Local Health Network, Flinders Medical Centre, Bedford Park, SA, Australia
- Flinders University, College of Medicine and Public Health, Flinders Health and Medical Research Institute, Adelaide, SA, Australia
| |
Collapse
|
2
|
Miguel V, Shaw IW, Kramann R. Metabolism at the crossroads of inflammation and fibrosis in chronic kidney disease. Nat Rev Nephrol 2024:10.1038/s41581-024-00889-z. [PMID: 39289568 DOI: 10.1038/s41581-024-00889-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/15/2024] [Indexed: 09/19/2024]
Abstract
Chronic kidney disease (CKD), defined as persistent (>3 months) kidney functional loss, has a growing prevalence (>10% worldwide population) and limited treatment options. Fibrosis driven by the aberrant accumulation of extracellular matrix is the final common pathway of nearly all types of chronic repetitive injury in the kidney and is considered a hallmark of CKD. Myofibroblasts are key extracellular matrix-producing cells that are activated by crosstalk between damaged tubules and immune cells. Emerging evidence indicates that metabolic alterations are crucial contributors to the pathogenesis of kidney fibrosis by affecting cellular bioenergetics and metabolite signalling. Immune cell functions are intricately connected to their metabolic characteristics, and kidney cells seem to undergo cell-type-specific metabolic shifts in response to damage, all of which can determine injury and repair responses in CKD. A detailed understanding of the heterogeneity in metabolic reprogramming of different kidney cellular subsets is essential to elucidating communication processes between cell types and to enabling the development of metabolism-based innovative therapeutic strategies against CKD.
Collapse
Affiliation(s)
- Verónica Miguel
- Department of Medicine 2, Nephrology, Rheumatology and Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Isaac W Shaw
- Department of Medicine 2, Nephrology, Rheumatology and Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany
| | - Rafael Kramann
- Department of Medicine 2, Nephrology, Rheumatology and Immunology, RWTH Aachen University, Medical Faculty, Aachen, Germany.
- Department of Internal Medicine, Nephrology and Transplantation, Erasmus Medical Center, Rotterdam, The Netherlands.
| |
Collapse
|
3
|
Dumoulin B, Susztak K. Fibrosis uncovered: ADAMTS12 cuts to the core of extracellular matrix drama. J Clin Invest 2024; 134:e183115. [PMID: 39286974 PMCID: PMC11405032 DOI: 10.1172/jci183115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2024] Open
Abstract
Fibrosis is a common manifestation of most progressive and degenerative diseases, with myofibroblast activation and matrix accumulation playing a key role. In this issue of the JCI, Hoeft et al. identify the important role of ADAMTS12 in fibroblast activation. ADAMTS12, a secreted protein, is involved in extracellular matrix (ECM) remodeling, cell signaling, and inflammation. ADAMTS12 facilitates proteolysis by cleaving various substrates such as ECM components, which are vital for cellular signaling and remodeling. Additionally, it modulates cell-matrix interactions, influencing cell adhesion and migration, and plays an important role in the inflammatory processes. Understanding the role of ADAMTS12 offers potential therapeutic insights for targeting fibrosis in progressive diseases.
Collapse
|
4
|
Jiang YY, Jiang XL, Yu HN. Dysregulation of lipid metabolism in chronic kidney disease and the role of natural products. NAUNYN-SCHMIEDEBERG'S ARCHIVES OF PHARMACOLOGY 2024:10.1007/s00210-024-03373-4. [PMID: 39162795 DOI: 10.1007/s00210-024-03373-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/17/2024] [Accepted: 08/08/2024] [Indexed: 08/21/2024]
Abstract
Dysregulation of lipid metabolism plays a key role in the onset and progression of CKD, and a thorough understanding of its regulatory mechanisms is essential for the development of effective treatments. In recent years, an increasing number of studies have focused on the pharmacological activities of natural products and their application in the treatment of chronic diseases. Natural products, including plant extracts and bioactive compounds, have been shown to exert anti-inflammatory, antioxidant, antifibrosis, and anti-apoptotic effects through various signaling pathways in the treatment of CKD. Many natural products have been shown to target dysregulated lipid metabolism through various signaling pathways. This review summarizes the key regulatory factors and signaling pathways involved in the dysregulation of lipid metabolism in chronic kidney disease (CKD), highlighting their importance as potential therapeutic targets. Recently published research on the potential therapeutic benefits of natural products for the treatment of CKD was described. These studies have revealed the multi-target role of natural products in the regulation of lipid metabolism. Natural products show great potential in targeting lipid metabolism-related pathways, offering a novel research direction for the treatment of CKD while providing a scientific basis and experimental support for the development of new treatment strategies.
Collapse
Affiliation(s)
- Yang-Yi Jiang
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China
| | - Xiao-Li Jiang
- Nephrology Department, Ningbo Medical Center Lihuili Hospital, Ningbo, China
| | - Hai-Ning Yu
- College of Pharmaceutical Science, Zhejiang University of Technology, Hangzhou, China.
| |
Collapse
|
5
|
Gowda D, Masum MA, B Gowda SG, Shekhar C, Rubel MZU, Kira S, Ichii O, Kon Y, Chiba H, Hui SP. Lipidomic study of kidney in a mouse model with urine flow obstruction. Sci Rep 2024; 14:18042. [PMID: 39098953 PMCID: PMC11298537 DOI: 10.1038/s41598-024-68270-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2023] [Accepted: 07/22/2024] [Indexed: 08/06/2024] Open
Abstract
Obstructed urine flow is known to cause structural and functional kidney damage leading to renal fibrosis. However, limited information is available on the change in kidney lipids during urinary tract obstruction. In this study, we investigated the change in lipidome in a mouse model with unilateral ureteral obstruction (UUO). The establishment of the UUO model was confirmed by histopathological examination using transmission electron microscopy. Untargeted liquid chromatography/mass spectrometry was carried out over a time course of 4 and 7 days. Compared to the sham control, the UUO kidney at 7 days showed dilatation of the renal tubule with loss of brush borders and thickening of the capillary endothelium. In the kidney lipidomes obtained from the UUO 7 days group compared to the control, a significant decrease of ceramide, sphingomyelin, phosphatidylcholine, lysophospholipids, and phosphatidylethanolamine was observed, whereas cholesteryl esters, free fatty acids, phosphatidylglycerol, and cardiolipins were significantly increased. The present study revealed the disturbed lipid metabolism in the UUO model, which may provide a clue to potential lipid pathways and therapeutic targets for the early stage of renal fibrosis.
Collapse
Affiliation(s)
- Divyavani Gowda
- Faculty of Health Sciences, Hokkaido University, Kita-12 Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
| | - Md Abdul Masum
- Department of Anatomy, Histology and Physiology, Faculty of Animal Science and Veterinary Medicine, Sher-e-Bangla Agricultural University, Dhaka, 1207, Bangladesh.
- Laboratory of Anatomy, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan.
| | - Siddabasave Gowda B Gowda
- Faculty of Health Sciences, Hokkaido University, Kita-12 Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
- Graduate School of Global Food Resources, Hokkaido University, Kita 9, Nishi 9, Kita-ku, Sapporo, 060-0809, Japan
| | - Chandra Shekhar
- Faculty of Health Sciences, Hokkaido University, Kita-12 Nishi-5, Kita-ku, Sapporo, 060-0812, Japan
- Departments of Physiology, Medicine, Molecular Biology Immunology and Biochemistry, and Pharmaceutical Sciences, University of Tennessee Health Science Center, Memphis, TN, 38163, USA
| | - Md Zahir Uddin Rubel
- Laboratory of Anatomy, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Shunnosuke Kira
- Laboratory of Anatomy, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Osamu Ichii
- Laboratory of Anatomy, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
- Laboratory of Agrobiomedical Science, Faculty of Agriculture, Hokkaido University, Sapporo, 060-0809, Japan
| | - Yasuhiro Kon
- Laboratory of Anatomy, Department of Basic Veterinary Medicine, Faculty of Veterinary Medicine, Hokkaido University, Sapporo, 060-0818, Japan
| | - Hitoshi Chiba
- Department of Nutrition, Sapporo University of Health Sciences, Nakanuma, Nishi-4-3-1-15, Higashi-ku, Sapporo, 007-0894, Japan
| | - Shu-Ping Hui
- Faculty of Health Sciences, Hokkaido University, Kita-12 Nishi-5, Kita-ku, Sapporo, 060-0812, Japan.
| |
Collapse
|
6
|
Lee LE, Doke T, Mukhi D, Susztak K. The key role of altered tubule cell lipid metabolism in kidney disease development. Kidney Int 2024; 106:24-34. [PMID: 38614389 PMCID: PMC11193624 DOI: 10.1016/j.kint.2024.02.025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 02/16/2024] [Accepted: 02/27/2024] [Indexed: 04/15/2024]
Abstract
Kidney epithelial cells have very high energy requirements, which are largely met by fatty acid oxidation. Complex changes in lipid metabolism are observed in patients with kidney disease. Defects in fatty acid oxidation and increased lipid uptake, especially in the context of hyperlipidemia and proteinuria, contribute to this excess lipid build-up and exacerbate kidney disease development. Recent studies have also highlighted the role of increased de novo lipogenesis in kidney fibrosis. The defect in fatty acid oxidation causes energy starvation. Increased lipid uptake, synthesis, and lower fatty acid oxidation can cause toxic lipid build-up, reactive oxygen species generation, and mitochondrial damage. A better understanding of these metabolic processes may open new treatment avenues for kidney diseases by targeting lipid metabolism.
Collapse
Affiliation(s)
- Lauren E Lee
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Penn-Children's Hospital of Philadelphia Kidney Innovation Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Tomohito Doke
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Penn-Children's Hospital of Philadelphia Kidney Innovation Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Dhanunjay Mukhi
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Penn-Children's Hospital of Philadelphia Kidney Innovation Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA
| | - Katalin Susztak
- Renal, Electrolyte, and Hypertension Division, Department of Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Institute for Diabetes, Obesity, and Metabolism, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Department of Genetics, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA; Penn-Children's Hospital of Philadelphia Kidney Innovation Center, University of Pennsylvania, Perelman School of Medicine, Philadelphia, Pennsylvania, USA.
| |
Collapse
|
7
|
Gui Y, Yu Y, Wang W, Wang Y, Lu H, Mozdzierz S, Eskander K, Lin YH, Li H, Tian XJ, Liu S, Zhou D. Proteome characterization of liver-kidney comorbidity after microbial sepsis. FASEB J 2024; 38:e23597. [PMID: 38581235 DOI: 10.1096/fj.202302520r] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 03/05/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
Sepsis is a life-threatening condition that occurs when the body responds to an infection but subsequently triggers widespread inflammation and impaired blood flow. These pathologic responses can rapidly cause multiple organ dysfunction or failure either one by one or simultaneously. The fundamental common mechanisms involved in sepsis-induced multiple organ dysfunction remain unclear. Here, employing quantitative global and phosphoproteomics, we examine the liver's temporal proteome and phosphoproteome changes after moderate sepsis induced by cecum ligation and puncture. In total, 4593 global proteins and 1186 phosphoproteins according to 3275 phosphosites were identified. To characterize the liver-kidney comorbidity after sepsis, we developed a mathematical model and performed cross-analyses of liver and kidney proteome data obtained from the same set of mice. Beyond immune response, we showed the commonly disturbed pathways and key regulators of the liver-kidney comorbidity are linked to energy metabolism and consumption. Our data provide open resources to understand the communication between the liver and kidney as they work to fight infection and maintain homeostasis.
Collapse
Affiliation(s)
- Yuan Gui
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yanbao Yu
- Department of Chemistry & Biochemistry, University of Delaware, Newark, Delaware, USA
| | - Wenjia Wang
- Department of Biostatistics, School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Yuanyuan Wang
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Hanyue Lu
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Sarah Mozdzierz
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Kirollos Eskander
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| | - Yi-Han Lin
- National Center for Advancing Translational Sciences, Bethesda, Maryland, USA
| | - Hanwen Li
- Department of Statistics, Kenneth P. Dietrich School of Arts and Sciences, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Xiao-Jun Tian
- School of Biological and Health Systems Engineering, Arizona State University, Tempe, Arizona, USA
| | - Silvia Liu
- Department of Pathology, University of Pittsburgh School of Medicine, Pittsburgh, Pennsylvania, USA
- Pittsburgh Liver Research Center, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
| | - Dong Zhou
- Division of Nephrology, Department of Medicine, University of Connecticut School of Medicine, Farmington, Connecticut, USA
| |
Collapse
|
8
|
Li H, Humphreys BD. Targeting de novo lipogenesis to mitigate kidney disease. J Clin Invest 2024; 134:e178125. [PMID: 38357930 PMCID: PMC10866665 DOI: 10.1172/jci178125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2024] Open
Abstract
Ten percent of the population worldwide suffers from chronic kidney disease (CKD), but the mechanisms driving CKD pathology are incompletely understood. While dysregulated lipid metabolism is one hallmark of CKD, the pathogenesis of cellular lipid accumulation remains unclear. In this issue of the JCI, Mukhi et al. Identify acyl-CoA synthetase short-chain family 2 (ACSS2) as a disease risk gene and demonstrate a role for ACSS2 in de novo lipogenesis (DNL). Notably, genetic or pharmacological inhibition of DNL protected against kidney disease progression in mice. These findings warrant evaluation of DNL inhibition with respect to efficacy and safety in people with CKD.
Collapse
Affiliation(s)
- Haikuo Li
- Division of Nephrology, Department of Medicine, and
| | - Benjamin D. Humphreys
- Division of Nephrology, Department of Medicine, and
- Department of Developmental Biology, Washington University in St. Louis, St. Louis, Missouri, USA
| |
Collapse
|