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Liu WB, Fermin D, Xu AL, Kopp JB, Xu Q. Single-cell RNA sequencing data locate ALDH1A2-mediated retinoic acid synthetic pathway to glomerular parietal epithelial cells. Exp Biol Med (Maywood) 2024; 249:10167. [PMID: 39360029 PMCID: PMC11444976 DOI: 10.3389/ebm.2024.10167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Accepted: 08/22/2024] [Indexed: 10/04/2024] Open
Abstract
Aldehyde dehydrogenase 1, family member A2, is a retinoic acid-synthesizing enzyme encoded by Aldh1a2 in mice and ALDH1A2 in humans. This enzyme is indispensable for kidney development, but its role in kidney physiology and pathophysiology remains to be fully defined. In this review, we mined single-cell and single-nucleus RNA sequencing databases of mouse and human kidneys and found that glomerular parietal epithelial cells (PECs) express a full set of genes encoding proteins needed for cellular vitamin A uptake, intracellular transport, and metabolism into retinoic acid. In particular, Aldh1a2/ALDH1A2 mRNAs are selectively enriched in mouse and human PECs. Aldh1a2 expression in PECs is greatly increased in a mouse model of anti-glomerular basement membrane glomerulonephritis and moderately induced in a mouse model of ischemia-reperfusion acute kidney injury. Aldh1a2 expression in PECs is substantially repressed in a chronic kidney disease mouse model combining diabetes, hypertension, and partial nephrectomy and is moderately repressed in mouse models of focal segmental glomerulosclerosis and diabetic nephropathy. Single-nucleus RNA sequencing data show that ALDH1A2 mRNA expression in PECs is diminished in patients with chronic kidney disease associated with diabetes, hypertension and polycystic kidney disease. In addition to data mining, we also performed Spearman's rank correlation coefficient analyses and identified gene transcripts correlated with Aldh1a2/ALDH1A2 transcripts in mouse PECs and PEC subtypes, and in human PECs of healthy subjects and patients with AKI or CKD. Furthermore, we conducted Gene Ontology pathway analyses and identified the biological pathways enriched among these Aldh1a2/ALDH1A2-correlated genes. Our data mining and analyses led us to hypothesize that ALDH1A2-mediated retinoic acid synthesis in PECs plays a yet-undefined role in the kidney and that its dysregulation mediates injury. Conditional, PEC-selective Aldh1a2 knockout, RNA silencing and transgenic mouse models will be useful tools to test this hypothesis. Clinical studies on genetics, epigenetics, expression and functions of ALDH1A2 and other genes needed for retinoic acid biosynthesis and signaling are also warranted.
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Affiliation(s)
- Wen-Bin Liu
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Damian Fermin
- Department of Internal Medicine, Division of Nephrology, University of Michigan, Ann Arbor, MI, United States
| | - An-Long Xu
- Beijing Research Institute of Chinese Medicine, Beijing University of Chinese Medicine, Beijing, China
| | - Jeffrey B. Kopp
- Kidney Disease Section, Kidney Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, United States
| | - Qihe Xu
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology & Microbial Sciences, Faculty of Life Sciences & Medicine, King’s College London, London, United Kingdom
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2
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Lasorsa F, Caliolo C, Silecchia A, Laricchiuta N, Raguso M, Ditonno P, Lucarelli G. Management of Pediatric Urolithiasis in an Italian Tertiary Referral Center: A Retrospective Analysis. MEDICINA (KAUNAS, LITHUANIA) 2023; 59:2165. [PMID: 38138268 PMCID: PMC10745114 DOI: 10.3390/medicina59122165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2023] [Revised: 12/09/2023] [Accepted: 12/11/2023] [Indexed: 12/24/2023]
Abstract
Background and Objectives: In recent years, the prevalence of pediatric urolithiasis has increased in North America and Western countries, though it is endemic in developing countries. The aim of this study is to describe the experience of a tertiary pediatric referral center in the surgical management of pediatric urolithiasis. Materials and Methods: We retrospectively reviewed the experience of patients ≤ 16 years old affected by urinary stones who underwent surgery. Results: From April 2021 to September 2023, 31 pediatric patients underwent surgical procedures for stone diseases at our department: 13 preschool-aged (1-5 years) and 18 school-aged (6-16 years) children. During this period, 12 URSs, 17 RIRSs, and 2 PCNLs were recorded. Five patients had residual fragments at first, so three of them underwent a second endourological lithotripsy (2 RIRSs and 1 URS). Complete clearance was finally achieved in 27 patients. The stone composition was evaluated in 25 cases. Conclusions: Numerous innovations in the surgical treatment of pediatric urolithiasis have resulted from the development of smaller devices and new technology. Our results show how, in experienced centers, retrograde and percutaneous lithotripsy are safe and effective procedures for use in pediatric populations.
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Affiliation(s)
- Francesco Lasorsa
- Department of Precision and Regenerative Medicine and Ionian Area-Urology, Andrology and Kidney Transplantation Unit, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Claudia Caliolo
- Urologic Pediatric Surgery Unit, Pediatric Hospital “Giovanni XXIII”, 70124 Bari, Italy
| | - Antonia Silecchia
- Urologic Pediatric Surgery Unit, Pediatric Hospital “Giovanni XXIII”, 70124 Bari, Italy
| | - Nicola Laricchiuta
- Urologic Pediatric Surgery Unit, Pediatric Hospital “Giovanni XXIII”, 70124 Bari, Italy
| | - Michele Raguso
- Department of Precision and Regenerative Medicine and Ionian Area-Urology, Andrology and Kidney Transplantation Unit, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Pasquale Ditonno
- Department of Precision and Regenerative Medicine and Ionian Area-Urology, Andrology and Kidney Transplantation Unit, University of Bari “Aldo Moro”, 70124 Bari, Italy
| | - Giuseppe Lucarelli
- Department of Precision and Regenerative Medicine and Ionian Area-Urology, Andrology and Kidney Transplantation Unit, University of Bari “Aldo Moro”, 70124 Bari, Italy
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3
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Dai X, Jin J, Jia Y, Yang K, Han J, Zhang Z, Ding X, Yao C, Sun T, Zhu C, Liu H. A non-retinol RAR-γ selective agonist-tectorigenin can effectively inhibit the UVA-induced skin damage. Br J Pharmacol 2022; 179:4722-4737. [PMID: 35731978 DOI: 10.1111/bph.15902] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 05/22/2022] [Accepted: 06/09/2022] [Indexed: 12/01/2022] Open
Abstract
BACKGROUND AND PURPOSE Long-term ultraviolet (UV) exposure can cause inflammation, pigmentation, and photoaging. All-trans-retinoic acid (ATRA) is a commonly used retinoic acid receptor (RAR) agonist in the clinical treatment of UV-induced skin problems; however, the use of such drugs is often accompanied by systemic adverse reactions caused by nonspecific activation of RARs. Therefore, this study is expected to screen for a novel RAR-γ-selective agonist with high safety. EXPERIMENTAL APPROACH Molecular docking, dynamic simulation, and Biacore were used to screen and obtain novel RAR-γ-selective agonists. RT-PCR, ELISA, western blotting, immunofluorescence staining, flow cytometry, and proteomic analysis were used to detect the effects of novel RAR-γ selective agonists on UVA-induced inflammation and photoaging cell models. UVA-induced mouse models were used to evaluate the effects of tectorigenin (TEC) on skin repair, aging, and inflammation. KEY RESULTS TEC is a novel RAR-γ-selective agonist. TEC inhibits UV-induced oxidative damage, inflammatory factor release, and matrix metalloproteinase (MMP) production. TEC can also reverse the UVA-induced loss of collagen. The results of the signalling pathway research showed that TEC mainly affects the MAPK/JNK/AP-1 pathway. In animal experiments, TEC showed better anti-inflammatory and anti-photoaging effects and caused less skin irritation than ATRA. Nano-particle loaded TEC, which significantly improved the utilization of TEC, is also presented. CONCLUSIONS AND IMPLICATIONS TEC is a non-retinol RAR-γ-selective agonist that can inhibit UV-induced skin damage and may be developed as a safe pharmaceutical component for the prevention of photoaging and skin inflammation.
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Affiliation(s)
- Xintong Dai
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Jing Jin
- Cheermore Cosmetic Dermatology Laboratory, Shanghai, China
| | - Yan Jia
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Kai Yang
- Cheermore Cosmetic Dermatology Laboratory, Shanghai, China
| | - Jingxia Han
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Zhiyuan Zhang
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Xiujuan Ding
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Cheng Yao
- Cheermore Cosmetic Dermatology Laboratory, Shanghai, China
| | - Tao Sun
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
| | - Caibin Zhu
- Cheermore Cosmetic Dermatology Laboratory, Shanghai, China
| | - Huijuan Liu
- State Key Laboratory of Medicinal Chemical Biology and College of Pharmacy, Nankai University, Tianjin, China
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4
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Zalesak-Kravec S, Huang W, Jones JW, Yu J, Alloush J, Defnet AE, Moise AR, Kane MA. Role of cellular retinol-binding protein, type 1 and retinoid homeostasis in the adult mouse heart: A multi-omic approach. FASEB J 2022; 36:e22242. [PMID: 35253263 DOI: 10.1096/fj.202100901rrr] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 12/14/2022]
Abstract
The main active metabolite of Vitamin A, all-trans retinoic acid (RA), is required for proper cellular function and tissue organization. Heart development has a well-defined requirement for RA, but there is limited research on the role of RA in the adult heart. Homeostasis of RA includes regulation of membrane receptors, chaperones, enzymes, and nuclear receptors. Cellular retinol-binding protein, type 1 (CRBP1), encoded by retinol-binding protein, type 1 (Rbp1), regulates RA homeostasis by delivering vitamin A to enzymes for RA synthesis and protecting it from non-specific oxidation. In this work, a multi-omics approach was used to characterize the effect of CRBP1 loss using the Rbp1-/- mouse. Retinoid homeostasis was disrupted in Rbp1-/- mouse heart tissue, as seen by a 33% and 24% decrease in RA levels in the left and right ventricles, respectively, compared to wild-type mice (WT). To further inform on the effect of disrupted RA homeostasis, we conducted high-throughput targeted metabolomics. A total of 222 metabolite and metabolite combinations were analyzed, with 33 having differential abundance between Rbp1-/- and WT hearts. Additionally, we performed global proteome profiling to further characterize the impact of CRBP1 loss in adult mouse hearts. More than 2606 unique proteins were identified, with 340 proteins having differential expression between Rbp1-/- and WT hearts. Pathway analysis performed on metabolomic and proteomic data revealed pathways related to cellular metabolism and cardiac metabolism were the most disrupted in Rbp1-/- mice. Together, these studies characterize the effect of CRBP1 loss and reduced RA in the adult heart.
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Affiliation(s)
- Stephanie Zalesak-Kravec
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Weiliang Huang
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Jace W Jones
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Jianshi Yu
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Jenna Alloush
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Amy E Defnet
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
| | - Alexander R Moise
- Medical Sciences Division, Northern Ontario School of Medicine, Sudbury, Ontario, Canada
| | - Maureen A Kane
- Department of Pharmaceutical Sciences, School of Pharmacy, University of Maryland, Baltimore, Maryland, USA
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5
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Wen J, Cao Y, Li Y, Zhu F, Yuan M, Xu J, Li J. Metabolomics analysis of the serum from children with urolithiasis using UPLC-MS. Clin Transl Sci 2021; 14:1327-1337. [PMID: 33580996 PMCID: PMC8301561 DOI: 10.1111/cts.12984] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 12/16/2020] [Accepted: 12/17/2020] [Indexed: 01/02/2023] Open
Abstract
Pediatric urolithiasis is a common urologic disease with high morbidity and recurrence rates. Recent studies have shown that metabolic dysfunction plays a vital role in the pathogenesis of urolithiasis, especially in children, but the specific mechanism is still unclear. Metabolomics is an ideal technology for exploring the mechanism of metabolic disorders in urolithiasis. In the present study, a serum metabolomics based on ultra‐performance liquid chromatography mass spectrometry was performed. A total of 50 children subjects were recruited for the study, including 30 patients with kidney stones and 20 normal controls (NCs). Principal component analysis and orthogonal partial least‐squares determinant analysis were carried, and 40 metabolites were found to be significantly altered in patients with kidney stones, mainly involving retinol metabolism, steroid hormone biosynthesis, and porphyrin and chlorophyll metabolism. The kidney stone group appeared to have a lower serum level of bilirubin, but a relative higher level of retinal, all‐transretinoic acid, progesterone, and prostaglandin E2 compared with those of the NC group. All the findings suggest that patients with urolithiasis have several metabolic characteristics, which are related to stone formation or compensation. These metabolites and pathways are very likely associated with development of kidney stones and should be considered as potential novel targets for treatment and prevention.
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Affiliation(s)
- Junxiang Wen
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yinyin Cao
- Cardiovascular Center, Children's Hospital of Fudan University, Shanghai, China
| | - Yang Li
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China
| | - Fenhua Zhu
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China
| | - Meifen Yuan
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China
| | - Jin Xu
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China
| | - Jian Li
- Clinical Laboratory Center, Children's Hospital of Fudan University, Shanghai, China.,Shanghai Key Laboratory of Birth Defect, Shanghai, China
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6
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Hao Y, Reyes LT, Morris R, Xu Y, Wang Y, Cheng F. Changes of protein levels in human urine reflect the dysregulation of signaling pathways of chronic kidney disease and its complications. Sci Rep 2020; 10:20743. [PMID: 33247215 PMCID: PMC7699629 DOI: 10.1038/s41598-020-77916-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 11/18/2020] [Indexed: 11/30/2022] Open
Abstract
The increasing prevalence of chronic kidney disease (CKD) seriously is threatening human health and overall quality of life. The discovery of biomarkers of pathogenesis of CKD and the associated complications are very important for CDK diagnosis and treatment. In this paper, urine protein biomarkers were investigated because urine sample collection is convenient and non-invasive. We analyzed the protein concentrations in the urine of CKD patients and extracted abnormal protein signals comparing with the healthy control groups. The enriched signaling pathways that may characterize CKD pathology were identified from these proteins. We applied surface-enhanced laser desorption and ionization time of flight mass spectrometry technology to detect different protein peaks in urine samples from patients with CKD and healthy controls. We searched the proteins corresponding to protein peaks through the UniProt database and identified the signaling pathways of CKD and its complications by using the NIH DAVID database. 42 low abundance proteins and 46 high abundance proteins in the urine samples from CKD patients were found by comparing with healthy controls. Seven KEGG pathways related to CKD and its complications were identified from the regulated proteins. These pathways included chemokine signaling pathway, cytokine-cytokine receptor interaction, oxidative phosphorylation, cardiac muscle contraction, Alzheimer's disease, Parkinson's disease, and salivary secretion. In CKD stages 2, 3, 4, and 5, five proteins showed significantly differential abundances. The differential protein signals and regulated signaling pathways will provide new insight for the pathogenesis of CKD and its complications. These altered proteins may also be used as novel biomarkers for the noninvasive and convenient diagnosis methods of CKD and its complications through urine testing in the future.
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Affiliation(s)
- Yiming Hao
- Shanghai Key Laboratory of Health Identification and Assessment/Laboratory of TCM Four Diagnostic Information, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Luis Tanon Reyes
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, 33612, USA
| | - Robert Morris
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, 33612, USA
| | - Yifeng Xu
- Shanghai Key Laboratory of Health Identification and Assessment/Laboratory of TCM Four Diagnostic Information, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | - Yiqin Wang
- Shanghai Key Laboratory of Health Identification and Assessment/Laboratory of TCM Four Diagnostic Information, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China.
| | - Feng Cheng
- Department of Pharmaceutical Sciences, College of Pharmacy, University of South Florida, Tampa, FL, 33612, USA.
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7
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Papadimitriou A, Romagnani P, Angelotti ML, Noor M, Corcoran J, Raby K, Wilson PD, Li J, Fraser D, Piedagnel R, Hendry BM, Xu Q. Collecting duct cells show differential retinoic acid responses to acute versus chronic kidney injury stimuli. Sci Rep 2020; 10:16683. [PMID: 33028882 PMCID: PMC7542174 DOI: 10.1038/s41598-020-73099-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Accepted: 09/07/2020] [Indexed: 01/14/2023] Open
Abstract
Retinoic acid (RA) activates RA receptors (RAR), resulting in RA response element (RARE)-dependent gene expression in renal collecting duct (CD). Emerging evidence supports a protective role for this activity in acute kidney injury (AKI) and chronic kidney disease (CKD). Herein, we examined this activity in RARE-LacZ transgenic mice and by RARE-Luciferase reporter assays in CD cells, and investigated how this activity responds to neurotransmitters and mediators of kidney injury. In RARE-LacZ mice, Adriamycin-induced heavy albuminuria was associated with reduced RA/RAR activity in CD cells. In cultured CD cells, RA/RAR activity was repressed by acetylcholine, albumin, aldosterone, angiotensin II, high glucose, cisplatin and lipopolysaccharide, but was induced by aristolochic acid I, calcitonin gene-related peptide, endothelin-1, gentamicin, norepinephrine and vasopressin. Compared with age-matched normal human CD cells, CD-derived renal cystic epithelial cells from patients with autosomal recessive polycystic kidney disease (ARPKD) had significantly lower RA/RAR activity. Synthetic RAR agonist RA-568 was more potent than RA in rescuing RA/RAR activity repressed by albumin, high glucose, angiotensin II, aldosterone, cisplatin and lipopolysaccharide. Hence, RA/RAR in CD cells is a convergence point of regulation by neurotransmitters and mediators of kidney injury, and may be a novel therapeutic target.
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Affiliation(s)
- Alexandros Papadimitriou
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Paola Romagnani
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy
| | - Maria Lucia Angelotti
- Department of Clinical and Experimental Biomedical Sciences, University of Florence, Florence, Italy
| | - Mazhar Noor
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Jonathan Corcoran
- The Wolfson Centre for Age-Related Diseases, King's College London, London, UK
| | - Katie Raby
- University College London, UCL Centre for Nephrology, Royal Free Hospital, London, UK
| | - Patricia D Wilson
- University College London, UCL Centre for Nephrology, Royal Free Hospital, London, UK
| | - Joan Li
- Faculty of Medicine, University of Queensland, Brisbane, QLD, Australia
| | - Donald Fraser
- Wales Kidney Research Unit, Heath Park Campus, Cardiff, UK
| | - Remi Piedagnel
- National Institute for Health and Medical Research (INSERM), Unité Mixte de Recherche (UMR)-S1155, Tenon Hospital, Sorbonne Universités, Paris, France
| | - Bruce M Hendry
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK
| | - Qihe Xu
- Renal Sciences and Integrative Chinese Medicine Laboratory, Department of Inflammation Biology, School of Immunology and Microbial Sciences, Faculty of Life Sciences and Medicine, King's College London, London, UK.
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8
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Daniel E, Barlow HR, Sutton GI, Gu X, Htike Y, Cowdin MA, Cleaver O. Cyp26b1 is an essential regulator of distal airway epithelial differentiation during lung development. Development 2020; 147:dev181560. [PMID: 32001436 PMCID: PMC7044453 DOI: 10.1242/dev.181560] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Accepted: 01/23/2020] [Indexed: 12/16/2022]
Abstract
Proper organ development depends on coordinated communication between multiple cell types. Retinoic acid (RA) is an autocrine and paracrine signaling molecule essential for the development of most organs, including the lung. Despite extensive work detailing effects of RA deficiency in early lung morphogenesis, little is known about how RA regulates late gestational lung maturation. Here, we investigate the role of the RA catabolizing protein Cyp26b1 in the lung. Cyp26b1 is highly enriched in lung endothelial cells (ECs) throughout development. We find that loss of Cyp26b1 leads to reduction of alveolar type 1 cells, failure of alveolar inflation and early postnatal lethality in mouse. Furthermore, we observe expansion of distal epithelial progenitors, but no appreciable changes in proximal airways, ECs or stromal populations. Exogenous administration of RA during late gestation partially mimics these defects; however, transcriptional analyses comparing Cyp26b1-/- with RA-treated lungs reveal overlapping, but distinct, responses. These data suggest that defects observed in Cyp26b1-/- lungs are caused by both RA-dependent and RA-independent mechanisms. This work reports crucial cellular crosstalk during lung development involving Cyp26b1-expressing endothelium and identifies a novel RA modulator in lung development.
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Affiliation(s)
- Edward Daniel
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Haley R Barlow
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Gabrielle I Sutton
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Xiaowu Gu
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Yadanar Htike
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Mitzy A Cowdin
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
| | - Ondine Cleaver
- Department of Molecular Biology and Center for Regenerative Science and Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA
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9
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Seiler KM, Waye SE, Kong W, Kamimoto K, Bajinting A, Goo WH, Onufer EJ, Courtney C, Guo J, Warner BW, Morris SA. Single-Cell Analysis Reveals Regional Reprogramming During Adaptation to Massive Small Bowel Resection in Mice. Cell Mol Gastroenterol Hepatol 2019; 8:407-426. [PMID: 31195149 PMCID: PMC6718927 DOI: 10.1016/j.jcmgh.2019.06.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 05/29/2019] [Accepted: 06/03/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND & AIMS The small intestine (SI) displays regionality in nutrient and immunological function. Following SI tissue loss (as occurs in short gut syndrome, or SGS), remaining SI must compensate, or "adapt"; the capacity of SI epithelium to reprogram its regional identity has not been described. Here, we apply single-cell resolution analyses to characterize molecular changes underpinning adaptation to SGS. METHODS Single-cell RNA sequencing was performed on epithelial cells isolated from distal SI of mice following 50% proximal small bowel resection (SBR) vs sham surgery. Single-cell profiles were clustered based on transcriptional similarity, reconstructing differentiation events from intestinal stem cells (ISCs) through to mature enterocytes. An unsupervised computational approach to score cell identity was used to quantify changes in regional (proximal vs distal) SI identity, validated using immunofluorescence, immunohistochemistry, qPCR, western blotting, and RNA-FISH. RESULTS Uniform Manifold Approximation and Projection-based clustering and visualization revealed differentiation trajectories from ISCs to mature enterocytes in sham and SBR. Cell identity scoring demonstrated segregation of enterocytes by regional SI identity: SBR enterocytes assumed more mature proximal identities. This was associated with significant upregulation of lipid metabolism and oxidative stress gene expression, which was validated via orthogonal analyses. Observed upstream transcriptional changes suggest retinoid metabolism and proximal transcription factor Creb3l3 drive proximalization of cell identity in response to SBR. CONCLUSIONS Adaptation to proximal SBR involves regional reprogramming of ileal enterocytes toward a proximal identity. Interventions bolstering the endogenous reprogramming capacity of SI enterocytes-conceivably by engaging the retinoid metabolism pathway-merit further investigation, as they may increase enteral feeding tolerance, and obviate intestinal failure, in SGS.
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Affiliation(s)
- Kristen M Seiler
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Sarah E Waye
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Wenjun Kong
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Kenji Kamimoto
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Adam Bajinting
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - William H Goo
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Emily J Onufer
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Cathleen Courtney
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Jun Guo
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Brad W Warner
- Division of Pediatric Surgery, Department of Surgery, Washington University School of Medicine in St. Louis, St. Louis, Missouri
| | - Samantha A Morris
- Department of Developmental Biology, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Department of Genetics, Washington University School of Medicine in St. Louis, St. Louis, Missouri; Center of Regenerative Medicine, Washington University School of Medicine in St. Louis, St. Louis, Missouri.
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10
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Zhang Y, Zhang X, Wang X, Wang H, Wu X, Xu H, Shen Q. Gen1 Modulates Metanephric Morphology Through Retinoic Acid Signaling. DNA Cell Biol 2019; 38:263-271. [PMID: 30632787 DOI: 10.1089/dna.2018.4426] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Congenital anomalies of the kidney and urinary tract (CAKUT) are the leading cause of end-stage renal disease in children. Our group has discovered that Holliday Junction resolvase gene Gen1 is a potential candidate gene for CAKUT. Gen1 mutant mice showed CAKUT phenotypes similar to those observed in retinoic acid (RA)-deficient models. The expression of Raldh2, which encodes the key enzyme in RA synthesis, was reduced in Gen1 mutant metanephros through RNA sequencing. By real-time reverse transcription-PCR, the expression of both Raldh2 and downstream Ret was reduced in embryonic day (E) 11.5 Gen1 mutant ureters and E13.5 kidneys, and expression of RA receptor alpha was decreased in E13.5 Gen1 mutant ureters and kidneys. Further studies showed that all-trans retinoic acid (ATRA) rescued solitary kidney phenotype and improved ureteric branching; ATRA should be administered after ureteric budding to avoid increasing the incidence of ectopic budding in Gen1 mutants. Luciferase intensity of RA response element was lower in CHO-K1 cells transfected with Gen1 siRNA than in those transfected with scrambled RNA, and this inhibitory effect could be reversed by ATRA. These findings indicate that Gen1 mutation can result in renal malformation through RA signaling and Gen1-loss-induced CAKUT can be partly rescued by ATRA.
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Affiliation(s)
- Ya Zhang
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xin Zhang
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Xiaowen Wang
- 2 Department of Nephrology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Herui Wang
- 3 Neuro-Oncology Branch, Center for Cancer Research, National Cancer Institute, National Institutes of Health, Bethesda, Maryland
| | - Xiaohui Wu
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China.,4 State Key Laboratory of Genetic Engineering and National Center for International Research of Development and Disease, Institute of Developmental Biology and Molecular Medicine, Collaborative Innovation Center of Genetics and Development, School of Life Sciences, Fudan University, Shanghai, China
| | - Hong Xu
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
| | - Qian Shen
- 1 Department of Nephrology, Children's Hospital of Fudan University, Shanghai Kidney Development and Pediatric Kidney Disease Research Center, Shanghai, China
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Al-Kurdi B. Hierarchical transcriptional profile of urothelial cells development and differentiation. Differentiation 2017; 95:10-20. [PMID: 28135607 DOI: 10.1016/j.diff.2016.10.001] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2016] [Revised: 10/09/2016] [Accepted: 10/14/2016] [Indexed: 11/27/2022]
Abstract
The urothelial lining of the lower urinary tract is the most efficient permeability barrier in animals, exhibiting a highly differentiated phenotype and a remarkable regenerative capacity upon wounding. During development and possibly during repair, cells undergo a sequence of hierarchical transcriptional events that mark the transition of these cells from the least differentiated urothelial phenotype characteristic of the basal cell layer, to the most differentiated cellular phenotype characteristic of the superficial cell layer. Unraveling normal urothelial differentiation program is essential to uncover the underlying causes of many congenital abnormalities and for the development of an appropriate differentiation niche for stem cells, for future use in urinary tract tissue engineering and organ reconstruction. Kruppel like factor-5 appears to be at the top of the hierarchy activating several downstream transcription factors, the most prominent of which is peroxisome proliferator activator receptor-γ. Eventually those lead to the activation of transcription factors that directly regulate the expression of uroplakin proteins along with other proteins that mediate the permeability function of the urothelium. In this review, we discuss the most recent findings in the area of urothelial cellular differentiation and transcriptional regulation, aiming for a comprehensive overview that aids in a refined understanding of this process.
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Affiliation(s)
- Ban Al-Kurdi
- Cell Therapy Center, The University of Jordan, Amman, Jordan.
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Schulze Blasum B, Schröter R, Neugebauer U, Hofschröer V, Pavenstädt H, Ciarimboli G, Schlatter E, Edemir B. The kidney-specific expression of genes can be modulated by the extracellular osmolality. FASEB J 2016; 30:3588-3597. [PMID: 27464968 DOI: 10.1096/fj.201600319r] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2016] [Accepted: 07/05/2016] [Indexed: 12/29/2022]
Abstract
With this study, we wanted to prove the hypothesis that the unique extracellular osmolality within the renal medulla modulates a specific gene expression pattern. The physiologic functions of the kidneys are mediated by the segment-specific expression of key proteins. So far, we have limited knowledge about the mechanisms that control this gene expression pattern. The hyperosmolality in the renal medullary interstitium is of major importance as a driving force for urine concentration. We made use of primarily cultured rat renal inner medullary collecting-duct cells and microarray analysis to identify genes affected by the environmental osmolality of the culture medium. We identified hundreds of genes that were either induced or repressed in expression by hyperosmolality in a time- and osmolality-dependent fashion. Further analysis demonstrated that many of them, physiologically, showed a kidney- and even collecting-duct-specific expression, including secreted proteins, kinases, and transcription factors. On the other hand, we identified factors, down-regulated in expression, that have a diuretic effect. In conclusion, the kidney is the only organ that has such a hyperosmotic environment, and study provides an excellent method for controlling tissue-specific gene expression.-Schulze Blasum, B., Schröter, R., Neugebauer, U., Hofschröer, V., Pavenstädt, H., Ciarimboli, G., Schlatter E., Edemir, B. The kidney-specific expression of genes can be modulated by the extracellular osmolality.
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Affiliation(s)
- Britta Schulze Blasum
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Rita Schröter
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Ute Neugebauer
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Verena Hofschröer
- Institute of Physiology II, University of Münster, Münster, Germany; and
| | - Hermann Pavenstädt
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Guiliano Ciarimboli
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Eberhard Schlatter
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany
| | - Bayram Edemir
- Department of Internal Medicine D, Experimental Nephrology, University of Münster, Münster, Germany; Faculty of Medicine, Department of Hematology and Oncology, Faculty of Medicine, Martin Luther University Halle-Wittenberg, Halle (Saale), Germany
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Elsayed AM, Abdelghany TM, Akool ES, Abdel-Aziz AAH, Abdel-Bakky MS. All-trans retinoic acid potentiates cisplatin-induced kidney injury in rats: impact of retinoic acid signaling pathway. Naunyn Schmiedebergs Arch Pharmacol 2015; 389:327-37. [PMID: 26659823 DOI: 10.1007/s00210-015-1193-3] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2015] [Accepted: 11/15/2015] [Indexed: 12/18/2022]
Abstract
Cisplatin (cis-diammine dichloroplatinum (II), CDDP) is a widely used drug for treatment of various types of cancers. However, CDDP-induced nephrotoxicity remains the main dose-limiting side effect. Retinoids are a group of vitamin A-related compounds that exert their effects through retinoid receptors activation. In this study, we investigated the effect of CDDP treatment on retinoic acid receptor-α (RAR-α) and retinoid X receptor-α (RXR-α) expression. In addition, we investigated the possible modulatory effects of RAR agonist, all-trans retinoic acid (ATRA), on CDDP-induced nephrotoxicity. Rats were treated with saline, DMSO, CDDP, ATRA, or CDDP/ATRA. Twenty-four hours after the last ATRA injection, rats were killed; blood samples were collected; kidneys were dissected; and biochemical, immunohistochemical, and histological examinations were performed. Our results revealed that CDDP treatment significantly increased serum levels of creatinine and urea, with concomitant decrease in serum albumin. Moreover, reduced glutathione (GSH) content as well as superoxide dismutase (SOD) and catalase (CAT) activities were significantly reduced with concurrent increase in kidney malondialdehyde (MDA) content following CDDP treatment. Furthermore, CDDP markedly upregulated tubular RAR-α, RXR-α, fibrin, and inducible nitric oxide synthase (iNOS) protein expression. Although administration of ATRA to control rats did not produce marked alterations in kidney function parameters, administration of ATRA to CDDP-treated rats significantly exacerbated CDDP-induced nephrotoxicity. In addition, CDDP/ATRA co-treatment significantly increased RAR-α, RXR-α, fibrin, and iNOS protein expression compared to CDDP alone. In conclusion, we report, for the first time, the crucial role of retinoid receptors in CDDP-induced nephrotoxicity. Moreover, our findings indicate that co-administration of ATRA with CDDP, although beneficial on the therapeutic effects, their deleterious effects on the kidney may limit their clinical use.
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Affiliation(s)
| | | | | | | | - Mohamed S Abdel-Bakky
- Faculty of Pharmacy, Al-Azhar University, Cairo, Egypt.,College of Pharmacy, Aljouf University, Sakaka, Aljouf, 2014, Kingdom of Saudi Arabia
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Billings SE, Pierzchalski K, Butler Tjaden NE, Pang XY, Trainor PA, Kane MA, Moise AR. The retinaldehyde reductase DHRS3 is essential for preventing the formation of excess retinoic acid during embryonic development. FASEB J 2013; 27:4877-89. [PMID: 24005908 DOI: 10.1096/fj.13-227967] [Citation(s) in RCA: 89] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Oxidation of retinol via retinaldehyde results in the formation of the essential morphogen all-trans-retinoic acid (ATRA). Previous studies have identified critical roles in the regulation of embryonic ATRA levels for retinol, retinaldehyde, and ATRA-oxidizing enzymes; however, the contribution of retinaldehyde reductases to ATRA metabolism is not completely understood. Herein, we investigate the role of the retinaldehyde reductase Dhrs3 in embryonic retinoid metabolism using a Dhrs3-deficient mouse. Lack of DHRS3 leads to a 40% increase in the levels of ATRA and a 60% and 55% decrease in the levels of retinol and retinyl esters, respectively, in Dhrs3(-/-) embryos compared to wild-type littermates. Furthermore, accumulation of excess ATRA is accompanied by a compensatory 30-50% reduction in the expression of ATRA synthetic genes and a 120% increase in the expression of the ATRA catabolic enzyme Cyp26a1 in Dhrs3(-/-) embryos vs. controls. Excess ATRA also leads to alterations (40-80%) in the expression of several developmentally important ATRA target genes. Consequently, Dhrs3(-/-) embryos die late in gestation and display defects in cardiac outflow tract formation, atrial and ventricular septation, skeletal development, and palatogenesis. These data demonstrate that the reduction of retinaldehyde by DHRS3 is critical for preventing formation of excess ATRA during embryonic development.
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Affiliation(s)
- Sara E Billings
- 1Department of Pharmacology and Toxicology, School of Pharmacy, 5060-Malott Hall, 1251 Wescoe Hall Dr., University of Kansas, Lawrence, KS 66045, USA.
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