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Dritsoula A, Camilli C, Moss SE, Greenwood J. The disruptive role of LRG1 on the vasculature and perivascular microenvironment. Front Cardiovasc Med 2024; 11:1386177. [PMID: 38745756 PMCID: PMC11091338 DOI: 10.3389/fcvm.2024.1386177] [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: 02/14/2024] [Accepted: 04/17/2024] [Indexed: 05/16/2024] Open
Abstract
The establishment of new blood vessels, and their subsequent stabilization, is a critical process that facilitates tissue growth and organ development. Once established, vessels need to diversify to meet the specific needs of the local tissue and to maintain homeostasis. These processes are tightly regulated and fundamental to normal vessel and tissue function. The mechanisms that orchestrate angiogenesis and vessel maturation have been widely studied, with signaling crosstalk between endothelium and perivascular cells being identified as an essential component. In disease, however, new vessels develop abnormally, and existing vessels lose their specialization and function, which invariably contributes to disease progression. Despite considerable research into the vasculopathic mechanisms in disease, our knowledge remains incomplete. Accordingly, the identification of angiocrine and angiopathic molecules secreted by cells within the vascular microenvironment, and their effect on vessel behaviour, remains a major research objective. Over the last decade the secreted glycoprotein leucine-rich α-2 glycoprotein 1 (LRG1), has emerged as a significant vasculopathic molecule, stimulating defective angiogenesis, and destabilizing the existing vasculature mainly, but not uniquely, by altering both canonical and non-canonical TGF-β signaling in a highly cell and context dependent manner. Whilst LRG1 does not possess any overt homeostatic role in vessel development and maintenance, growing evidence provides a compelling case for LRG1 playing a pleiotropic role in disrupting the vasculature in many disease settings. Thus, LRG1 has now been reported to damage vessels in various disorders including cancer, diabetes, chronic kidney disease, ocular disease, and lung disease and the signaling processes that drive this dysfunction are being defined. Moreover, therapeutic targeting of LRG1 has been widely proposed to re-establish a quiescent endothelium and normalized vasculature. In this review, we consider the current status of our understanding of the role of LRG1 in vascular pathology, and its potential as a therapeutic target.
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Affiliation(s)
- Athina Dritsoula
- UCL Institute of Ophthalmology, University College London, London, United Kingdom
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2
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Ghosh C, Kakar R, Hoyle RG, Liu Z, Guo C, Li J, Wang XY, Sun Y. Type I gamma phosphatidylinositol phosphate 5-kinase i5 controls cell sensitivity to interferon. Dev Cell 2024; 59:1028-1042.e5. [PMID: 38452758 PMCID: PMC11043016 DOI: 10.1016/j.devcel.2024.02.005] [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: 07/08/2023] [Revised: 12/21/2023] [Accepted: 02/09/2024] [Indexed: 03/09/2024]
Abstract
The interferon signaling pathway is critical for host defense by serving diverse functions in both innate and adaptive immune responses. Here, we show that type I gamma phosphatidylinositol phosphate 5-kinase i5 (PIPKIγi5), an enzyme that synthesizes phosphatidylinositol-4,5-bisphosphate (PI4,5P2), controls the sensitivity to interferon in both human and mouse cells. PIPKIγi5 directly binds to the interferon-gamma (IFN-γ) downstream effector signal transducer and activator of transcription 1 (STAT1), which suppresses the STAT1 dimerization, IFN-γ-induced STAT1 nuclear translocation, and transcription of IFN-γ-responsive genes. Depletion of PIPKIγi5 significantly enhances IFN-γ signaling and strengthens an antiviral response. In addition, PIPKIγi5-synthesized PI4,5P2 can bind to STAT1 and promote the PIPKIγi5-STAT1 interaction. Similar to its interaction with STAT1, PIPKIγi5 is capable of interacting with other members of the STAT family, including STAT2 and STAT3, thereby suppressing the expression of genes mediated by these transcription factors. These findings identify the function of PIPKIγi5 in immune regulation.
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Affiliation(s)
- Chinmoy Ghosh
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Ruchi Kakar
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Rosalie G Hoyle
- Department of Medicinal Chemistry, Institute for Structural Biology, Drug Discovery and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Zheng Liu
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Chunqing Guo
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Jiong Li
- Department of Medicinal Chemistry, Institute for Structural Biology, Drug Discovery and Development, School of Pharmacy, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Xiang-Yang Wang
- Department of Human and Molecular Genetics, School of Medicine, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA
| | - Yue Sun
- Department of Oral and Craniofacial Molecular Biology, Philips Institute for Oral Health Research, School of Dentistry, Virginia Commonwealth University, Richmond, VA 23298, USA; Massey Cancer Center, Virginia Commonwealth University, Richmond, VA 23298, USA.
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Tsuruta H, Yasuda-Yamahara M, Yoshibayashi M, Kuwagata S, Yamahara K, Tanaka-Sasaki Y, Chin-Kanasaki M, Matsumoto S, Ema M, Kume S. Fructose overconsumption accelerates renal dysfunction with aberrant glomerular endothelial-mesangial cell interactions in db/db mice. Biochim Biophys Acta Mol Basis Dis 2024; 1870:167074. [PMID: 38354758 DOI: 10.1016/j.bbadis.2024.167074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 01/31/2024] [Accepted: 02/09/2024] [Indexed: 02/16/2024]
Abstract
For the advancement of DKD treatment, identifying unrecognized residual risk factors is essential. We explored the impact of obesity diversity derived from different carbohydrate qualities, with an emphasis on the increasing trend of excessive fructose consumption and its effect on DKD progression. In this study, we utilized db/db mice to establish a novel diabetic model characterized by fructose overconsumption, aiming to uncover the underlying mechanisms of renal damage. Compared to the control diet group, the fructose-fed db/db mice exhibited more pronounced obesity yet demonstrated milder glucose intolerance. Plasma cystatin C levels were elevated in the fructose model compared to the control, and this elevation was accompanied by enhanced glomerular sclerosis, even though albuminuria levels and tubular lesions were comparable. Single-cell RNA sequencing of the whole kidney highlighted an increase in Lrg1 in glomerular endothelial cells (GECs) in the fructose model, which appeared to drive mesangial fibrosis through enhanced TGF-β1 signaling. Our findings suggest that excessive fructose intake exacerbates diabetic kidney disease progression, mediated by aberrant Lrg1-driven crosstalk between GECs and mesangial cells.
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Affiliation(s)
- Hiroaki Tsuruta
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Mako Yasuda-Yamahara
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Mamoru Yoshibayashi
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Shogo Kuwagata
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Kosuke Yamahara
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Yuki Tanaka-Sasaki
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Masami Chin-Kanasaki
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Shoma Matsumoto
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Masatsugu Ema
- Department of Stem Cells and Human Disease Models, Research Center for Animal Life Science, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan
| | - Shinji Kume
- Department of Medicine, Shiga University of Medical Science, Tsukinowa-cho, Otsu, Shiga, Japan.
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4
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Tomkins-Netzer O, Niederer R, Greenwood J, Fabian ID, Serlin Y, Friedman A, Lightman S. Mechanisms of blood-retinal barrier disruption related to intraocular inflammation and malignancy. Prog Retin Eye Res 2024; 99:101245. [PMID: 38242492 DOI: 10.1016/j.preteyeres.2024.101245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Revised: 01/16/2024] [Accepted: 01/16/2024] [Indexed: 01/21/2024]
Abstract
Blood-retinal barrier (BRB) disruption is a common accompaniment of intermediate, posterior and panuveitis causing leakage into the retina and macular oedema resulting in vision loss. It is much less common in anterior uveitis or in patients with intraocular lymphoma who may have marked signs of intraocular inflammation. New drugs used for chemotherapy (cytarabine, immune checkpoint inhibitors, BRAF inhibitors, EGFR inhibitors, bispecific anti-EGFR inhibitors, MET receptor inhibitors and Bruton tyrosine kinase inhibitors) can also cause different types of uveitis and BRB disruption. As malignant disease itself can cause uveitis, particularly from breast, lung and gastrointestinal tract cancers, it can be clinically difficult to sort out the cause of BRB disruption. Immunosuppression due to malignant disease and/or chemotherapy can lead to infection which can also cause BRB disruption and intraocular infection. In this paper we address the pathophysiology of BRB disruption related to intraocular inflammation and malignancy, methods for estimating the extent and effect of the disruption and examine why some types of intraocular inflammation and malignancy cause BRB disruption and others do not. Understanding this may help sort and manage these patients, as well as devise future therapeutic approaches.
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Affiliation(s)
- Oren Tomkins-Netzer
- Department of Ophthalmology, Lady Davis Carmel Medical Centre, Haifa, Israel; Ruth and Bruce Rappaport Faculty of Medicine, Technion-Israel Institute of Technology, Haifa, Israel.
| | - Rachael Niederer
- Department of Ophthalmology, Te Whatu Ora, Auckland, New Zealand; Department of Ophthalmology, University of Auckland, Auckland, New Zealand
| | - John Greenwood
- Institute of Ophthalmology, University College London, London, UK
| | - Ido Didi Fabian
- The Goldschleger Eye Institute, Sheba Medical Centre, Tel Hashomer, Tel Aviv University, Tel Aviv, Israel
| | - Yonatan Serlin
- Department of Medical Neuroscience and the Brain Repair Centre, Dalhousie University, Faculty of Medicine, Halifax, NS, Canada
| | - Alon Friedman
- Department of Medical Neuroscience and the Brain Repair Centre, Dalhousie University, Faculty of Medicine, Halifax, NS, Canada; Departments of Physiology and Cell Biology, Brain and Cognitive Sciences, Zlotowski Centre for Neuroscience, Ben- Gurion University of the Negev, Beer-Sheva, Israel
| | - Sue Lightman
- Institute of Ophthalmology, University College London, London, UK
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Gu J, Liu C, Yao Y. Prognostic potency of plasma LRG1 measurement at multiple time points in acute ischemic stroke patients. Biomark Med 2024; 18:181-190. [PMID: 38440887 DOI: 10.2217/bmm-2023-0545] [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] [Indexed: 03/06/2024] Open
Abstract
Objective: This study aimed to investigate the prognostic potency of LRG1 in acute ischemic stroke (AIS) patients. Methods: Plasma LRG1 levels were detected at admission and on days 3, 7 and 30 in 150 AIS patients. Results: LRG1 positively correlated with total cholesterol (p = 0.016), triglycerides (p = 0.046), C-reactive protein (p < 0.001), TNF-α (p = 0.001) and IL-6 (p = 0.004). After admission, LRG1 showed a decreasing trend (p < 0.001). Interestingly, LRG1 levels at admission (p = 0.014), day 3 (p = 0.027), day 7 (p = 0.008) and day 30 (p = 0.002) were higher in patients with modified Rankin scale score ≥2 versus those with scores <2. The LRG1 levels at day 7 (p = 0.032) and day 30 (p = 0.023) were higher in patients with recurrence versus no recurrence. Conclusion: LRG1 correlates with blood lipids, inflammation and short-term prognosis of AIS.
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Affiliation(s)
- Juxian Gu
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061001, China
| | - Chao Liu
- Department of CT Diagnosis, Cangzhou Central Hospital, Cangzhou, 061001, China
| | - Yan Yao
- Department of Neurology, Cangzhou Central Hospital, Cangzhou, 061001, China
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Huang Q, Xiao Y, Lan T, Lu Y, Huang L, Zheng D. WNT7A promotes tumorigenesis of head and neck squamous cell carcinoma via activating FZD7/JAK1/STAT3 signaling. Int J Oral Sci 2024; 16:7. [PMID: 38246919 PMCID: PMC10800352 DOI: 10.1038/s41368-024-00279-y] [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: 10/28/2023] [Revised: 01/01/2024] [Accepted: 01/02/2024] [Indexed: 01/23/2024] Open
Abstract
Wnt signaling are critical pathway involved in organ development, tumorigenesis, and cancer progression. WNT7A, a member of the Wnt family, remains poorly understood in terms of its role and the underlying molecular mechanisms it entails in head and neck squamous cell carcinoma (HNSCC). According to the Cancer Genome Atlas (TCGA), transcriptome sequencing data of HNSCC, the expression level of WNT7A in tumors was found to be higher than in adjacent normal tissues, which was validated using Real-time RT-PCR and immunohistochemistry. Unexpectedly, overexpression of WNT7A did not activate the canonical Wnt-β-catenin pathway in HNSCC. Instead, our findings suggested that WNT7A potentially activated the FZD7/JAK1/STAT3 signaling pathway, leading to enhanced cell proliferation, self-renewal, and resistance to apoptosis. Furthermore, in a patient-derived xenograft (PDX) tumor model, high expression of WNT7A and phosphorylated STAT3 was observed, which positively correlated with tumor progression. These findings underscore the significance of WNT7A in HNSCC progression and propose the targeting of key molecules within the FZD7/JAK1/STAT3 pathway as a promising strategy for precise treatment of HNSCC.
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Affiliation(s)
- Qingling Huang
- Department of Biochemistry and Molecular Biology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - Yi Xiao
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Ting Lan
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Youguang Lu
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
- Department of Preventive Dentistry, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China
| | - Li Huang
- Department of Dentistry, The First Affiliated Hospital of Fujian Medical University, Fuzhou, China.
| | - Dali Zheng
- Fujian Key Laboratory of Oral Diseases, School and Hospital of Stomatology, Fujian Medical University, Fuzhou, China.
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Ma L, Wang W, Zhao Y, Liu M, Ye W, Li X. Application of LRG mechanism in normal pressure hydrocephalus. Heliyon 2024; 10:e23940. [PMID: 38223707 PMCID: PMC10784321 DOI: 10.1016/j.heliyon.2023.e23940] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 11/02/2023] [Accepted: 12/15/2023] [Indexed: 01/16/2024] Open
Abstract
Normal pressure hydrocephalus (NPH) is a prevalent type of hydrocephalus, including secondary normal pressure hydrocephalus (SNPH) and idiopathic normal pressure hydrocephalus (INPH). However, its clinical diagnosis and pathological mechanism are still unclear. Leucine-rich α-2 glycoprotein (LRG) is involved in various human diseases, including cancer, diabetes, cardiovascular disease, and nervous system diseases. Now the physiological mechanism of LRG is still being explored. According to the current research results on LRG, we found that the agency of LRG has much to do with the known pathological process of NPH. This review focuses on analyzing the LRG signaling pathways and the pathological mechanism of NPH. According to the collected literature evidence, we speculated that LRG probably be involved in the pathological process of NPH. Finally, based on the mechanism of LRG and NPH, we also summarized the evidence of molecular targeted therapies for future research and clinical application.
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Affiliation(s)
| | | | - Yongqiang Zhao
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Menghao Liu
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Wei Ye
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
| | - Xianfeng Li
- Department of Neurosurgery, The Second Affiliated Hospital of Harbin Medical University, Harbin 150086, China
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8
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Alhammad R, Abu-Farha M, Rahman A, Thanaraj TA, Shaban L, Alsabah R, Hamad S, Hammad MM, Channanath A, Al-Mulla F, Abubaker J. LRG1 Associates with Iron Deficiency Anemia Markers in Adolescents. Nutrients 2023; 15:3100. [PMID: 37513518 PMCID: PMC10384480 DOI: 10.3390/nu15143100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 06/11/2023] [Accepted: 06/19/2023] [Indexed: 07/30/2023] Open
Abstract
Leucine-rich α-2 glycoprotein1 (LRG1) has been shown to be associated with several health conditions; however, its association with iron deficiency anemia, especially in children, has not been previously explored. In this study, we investigated the association between LRG1 and several iron deficiency anemia markers, including hemoglobin (Hb), albumin, red cell distribution width (RDW), iron, ferritin, and Hb transferrin saturation. A total of 431 participants were included in this analysis aged between 11 and 14 years. Higher LRG1 levels were observed in children diagnosed with anemia [31.1 (24.6, 43.2) µg/mL] compared to non-anemic children [29.2 (22.7-35.95) µg/mL]. Statistically significant differences of LRG1 level across the three groups (tertiles) of Hb, iron, transferrin saturation, albumin, RDW, ferritin, and WBC were observed. Strong negative correlations were observed between LRG1 and Hb (Spearman's rho = -0.11, p = 0.021), albumin (Spearman's rho = -0.24, p < 0.001), iron (Spearman's rho = -0.25, p < 0.001), and Hb transferrin saturation (Spearman's rho = -0.24, p < 0.001), whereas circulating LRG1 levels were positively associated with RDW (Spearman's rho = 0.21, p < 0.001). In conclusion, our findings demonstrate for the first time the strong association between iron deficiency anemia markers and LRG1 in otherwise healthy school-aged children. However, further studies are needed to corroborate those results and to look for similar associations in other population subgroups.
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Affiliation(s)
- Rashed Alhammad
- Department of Pharmacology, Faculty of Medicine, Kuwait University, Kuwait City 13110, Kuwait
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
| | - Abdur Rahman
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Kuwait City 13110, Kuwait
| | - Thangavel Alphonse Thanaraj
- Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, Kuwait University, Kuwait City 13110, Kuwait
| | - Lemia Shaban
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Kuwait City 13110, Kuwait
| | - Reem Alsabah
- Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, Kuwait University, Kuwait City 13110, Kuwait
| | - Samar Hamad
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
| | - Maha M Hammad
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
| | - Arshad Channanath
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait
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Alhammad R, Abu-Farha M, Hammad MM, Thanaraj TA, Channanath A, Alam-Eldin N, Al-Sabah R, Shaban L, Alduraywish A, Al-Mulla F, Rahman A, Abubaker J. Increased LRG1 Levels in Overweight and Obese Adolescents and Its Association with Obesity Markers, Including Leptin, Chemerin, and High Sensitivity C-Reactive Protein. Int J Mol Sci 2022; 23:ijms23158564. [PMID: 35955698 PMCID: PMC9369195 DOI: 10.3390/ijms23158564] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/25/2022] [Accepted: 07/27/2022] [Indexed: 02/05/2023] Open
Abstract
Leucine-rich α-2 glycoprotein1 (LRG1) is a member of the leucine-rich repeat (LRR) family that is implicated in multiple diseases, including cancer, aging, and heart failure, as well as diabetes and obesity. LRG1 plays a key role in diet-induced hepatosteatosis and insulin resistance by mediating the crosstalk between adipocytes and hepatocytes. LRG1 also promotes hepatosteatosis by upregulating de novo lipogenesis in the liver and suppressing fatty acid β-oxidation. In this study, we investigated the association of LRG1 with obesity markers, including leptin and other adipokines in adolescents (11−14 years; n = 425). BMI-for-age classification based on WHO growth charts was used to define obesity. Plasma LRG1 was measured by ELISA, while other markers were measured by multiplexing assay. Median (IQR) of LRG1 levels was higher in obese (30 (25, 38) µg/mL) and overweight (30 (24, 39) µg/mL) adolescents, compared to normal-weight participants (27 (22, 35) µg/mL). The highest tertile of LRG1 had an OR [95% CI] of 2.55 [1.44, 4.53] for obesity. LRG1 was positively correlated to plasma levels of high sensitivity c-reactive protein (HsCRP) (ρ = 0.2), leptin (ρ = 0.2), and chemerin (ρ = 0.24) with p < 0.001. Additionally, it was positively associated with plasma level of IL6 (ρ = 0.17) and IL10 (ρ = 0.14) but not TNF-α. In conclusion, LRG1 levels are increased in obese adolescents and are associated with increased levels of adipogenic markers. These results suggest the usefulness of LRG1 as an early biomarker for obesity and its related pathologies in adolescents.
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Affiliation(s)
- Rashed Alhammad
- Department of Pharmacology, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait;
| | - Mohamed Abu-Farha
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (M.A.-F.); (M.M.H.); (N.A.-E.)
| | - Maha M. Hammad
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (M.A.-F.); (M.M.H.); (N.A.-E.)
| | - Thangavel Alphonse Thanaraj
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (T.A.T.); (A.C.); (F.A.-M.)
| | - Arshad Channanath
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (T.A.T.); (A.C.); (F.A.-M.)
| | - Nada Alam-Eldin
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (M.A.-F.); (M.M.H.); (N.A.-E.)
| | - Reem Al-Sabah
- Department of Community Medicine and Behavioural Sciences, Faculty of Medicine, Kuwait University, Safat 13110, Kuwait;
| | - Lemia Shaban
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Safat 13060, Kuwait;
| | - Abdulrahman Alduraywish
- Department of Internal Medicine, College of Medicine, Jouf University, Sakaka 72388, Saudi Arabia;
| | - Fahd Al-Mulla
- Genetics and Bioinformatics Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (T.A.T.); (A.C.); (F.A.-M.)
| | - Abdur Rahman
- Department of Food Science and Nutrition, College of Life Sciences, Kuwait University, Safat 13060, Kuwait;
- Correspondence: (A.R.); (J.A.); Tel.: +965-2463-3321 (A.R.); +965-2224-2999 (ext. 3563) (J.A.)
| | - Jehad Abubaker
- Biochemistry and Molecular Biology Department, Dasman Diabetes Institute, Kuwait City 15462, Kuwait; (M.A.-F.); (M.M.H.); (N.A.-E.)
- Correspondence: (A.R.); (J.A.); Tel.: +965-2463-3321 (A.R.); +965-2224-2999 (ext. 3563) (J.A.)
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10
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Mantovani A, Csermely A, Sani E, Beatrice G, Petracca G, Lunardi G, Bonapace S, Lippi G, Targher G. Association between Higher Circulating Leucine-Rich α-2 Glycoprotein 1 Concentrations and Specific Plasma Ceramides in Postmenopausal Women with Type 2 Diabetes. Biomolecules 2022; 12:biom12070943. [PMID: 35883498 PMCID: PMC9312999 DOI: 10.3390/biom12070943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2022] [Revised: 07/03/2022] [Accepted: 07/03/2022] [Indexed: 02/04/2023] Open
Abstract
Background: Although ceramides are involved in the pathophysiology of cardiovascular disease and other inflammation-associated disorders, there is a paucity of data on the association between plasma ceramides and inflammatory biomarkers in type 2 diabetes mellitus (T2DM). Therefore, we explored whether there was an association between plasma leucine-rich α-2 glycoprotein 1 (LRG1) concentrations (i.e., a novel proinflammatory signaling molecule) and specific plasma ceramides in postmenopausal women with T2DM. Methods: We measured six previously identified plasma ceramides, which have been associated with increased cardiovascular risk [plasma Cer(d18:1/16:0), Cer(d18:1/18:0), Cer(d18:1/20:0), Cer(d18:1/22:0), Cer(d18:1/24:0) and Cer(d18:1/24:1)], amongst 99 Caucasian postmenopausal women with non-insulin-treated T2DM (mean age 72 ± 8 years, mean hemoglobin A1c 6.9 ± 0.7%), who consecutively attended our diabetes outpatient service during a 3-month period. Plasma ceramide and LRG1 concentrations were measured with a targeted liquid chromatography-tandem mass spectrometry assay and a Milliplex® MAP human cardiovascular disease magnetic bead kit, respectively. Results: In linear regression analyses, higher plasma LRG1 levels (1st tertile vs. 2nd and 3rd tertiles combined) were associated with higher levels of plasma Cer(d18:1/16:0) (standardized β coefficient: 0.289, p = 0.004), Cer(d18:1/18:0) (standardized β coefficient: 0.307, p = 0.002), Cer(d18:1/20:0) (standardized β coefficient: 0.261, p = 0.009) or Cer(d18:1/24:1) (standardized β coefficient: 0.343, p < 0.001). These associations remained significant even after adjusting for age, body mass index, systolic blood pressure, total cholesterol level, hemoglobin A1c, insulin resistance and statin use. Conclusions: The results of our pilot exploratory study suggest that higher plasma LRG1 concentration was associated with higher levels of specific high-risk plasma ceramide molecules in elderly postmenopausal women with metabolically well-controlled T2DM, even after adjusting for known cardiovascular risk factors and other potential confounding variables.
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Affiliation(s)
- Alessandro Mantovani
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
| | - Alessandro Csermely
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
| | - Elena Sani
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
| | - Giorgia Beatrice
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
| | - Graziana Petracca
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
| | - Gianluigi Lunardi
- Clinical Analysis Laboratory and Transfusion Medicine & Clinical Pharmacology, “IRCCS Sacro Cuore-Don Calabria” Hospital, 37024 Negrar, Italy;
| | - Stefano Bonapace
- Division of Cardiology, “IRCCS Sacro Cuore-Don Calabria” Hospital, 37024 Negrar, Italy;
| | - Giuseppe Lippi
- Section of Clinical Biochemistry, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy;
| | - Giovanni Targher
- Section of Endocrinology, Diabetes and Metabolism, Department of Medicine, University and Azienda Ospedaliera Universitaria Integrata of Verona, 37126 Verona, Italy; (A.M.); (A.C.); (E.S.); (G.B.); (G.P.)
- Correspondence:
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