1
|
Lozinski BM, Ta K, Dong Y. Emerging role of galectin 3 in neuroinflammation and neurodegeneration. Neural Regen Res 2024; 19:2004-2009. [PMID: 38227529 DOI: 10.4103/1673-5374.391181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 11/15/2023] [Indexed: 01/17/2024] Open
Abstract
Neuroinflammation and neurodegeneration are key processes that mediate the development and progression of neurological diseases. However, the mechanisms modulating these processes in different diseases remain incompletely understood. Advances in single cell based multi-omic analyses have helped to identify distinct molecular signatures such as Lgals3 that is associated with neuroinflammation and neurodegeneration in the central nervous system (CNS). Lgals3 encodes galectin-3 (Gal3), a β-galactoside and glycan binding glycoprotein that is frequently upregulated by reactive microglia/macrophages in the CNS during various neurological diseases. While Gal3 has previously been associated with non-CNS inflammatory and fibrotic diseases, recent studies highlight Gal3 as a prominent regulator of inflammation and neuroaxonal damage in the CNS during diseases such as multiple sclerosis, Alzheimer's disease, and Parkinson's disease. In this review, we summarize the pleiotropic functions of Gal3 and discuss evidence that demonstrates its detrimental role in neuroinflammation and neurodegeneration during different neurological diseases. We also consider the challenges of translating preclinical observations into targeting Gal3 in the human CNS.
Collapse
Affiliation(s)
- Brian M Lozinski
- Department of Clinical Neuroscience, University of Calgary, Calgary, AB, Canada
| | - Khanh Ta
- Deparment of Biochemistry, Microbiology & Immunology, University of Saskatchewan, Saskatoon, SK, Canada
| | - Yifei Dong
- Deparment of Biochemistry, Microbiology & Immunology, University of Saskatchewan, Saskatoon, SK, Canada
| |
Collapse
|
2
|
Quintana JI, Massaro M, Cagnoni AJ, Nuñez-Franco R, Delgado S, Jiménez-Osés G, Mariño KV, Rabinovich GA, Jiménez-Barbero J, Ardá A. Different roles of the heterodimer architecture of galectin-4 in selective recognition of oligosaccharides and lipopolysaccharides having ABH antigens. J Biol Chem 2024:107577. [PMID: 39019214 DOI: 10.1016/j.jbc.2024.107577] [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: 03/15/2024] [Revised: 06/18/2024] [Accepted: 07/09/2024] [Indexed: 07/19/2024] Open
Abstract
The dimeric architecture of tandem-repeat type galectins, such as galectin-4 (Gal-4), modulates their biological activities, although the underlying molecular mechanisms have remained elusive. Emerging evidence show that tandem-repeat galectins play an important role in innate immunity by recognizing carbohydrate antigens present on the surface of certain pathogens, which very often mimic the structures of the human self-glycan antigens. Herein, we have analyzed the binding preferences of the C-domain of Gal-4 (Gal-4C) towards the ABH-carbohydrate histo-blood antigens with different core presentations and their recognition features have been rationalized by employing a combined experimental approach including NMR, solid-phase and hemagglutination assays and molecular modeling. The data show that Gal-4C prefers A- over B-antigens (twofold in affinity), contrary to the N-domain (Gal-4N), although both domains share the same preference for the type-6 presentations. The behavior of the full-length tandem-repeat form (Gal-4FL) has been additionally scrutinized. ITC and NMR data demonstrate that both domains within Gal-4FL bind to the histo-blood antigens independently of each other, with no communication between them. In this context, the heterodimeric architecture does not play any major role, apart from the complementary A and B-antigen binding preferences. However, upon binding to a bacterial lipopolysaccharide (LPS) containing a multivalent version of an H-antigen mimetic as O-antigen, the significance of the galectin architecture was revealed. Indeed, our data point to the linker peptide domain and the F-face of the C-domain as key elements that provide Gal-4 with the ability to cross link multivalent ligands, beyond the glycan binding capacity of the dimer.
Collapse
Affiliation(s)
- Jon I Quintana
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | - Mora Massaro
- Laboratorio de Glicomedicina, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina; Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina
| | - Alejandro J Cagnoni
- Laboratorio de Glicomedicina, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina; Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina
| | - Reyes Nuñez-Franco
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | - Sandra Delgado
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain
| | - Gonzalo Jiménez-Osés
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain; Ikerbasque, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Bizkaia, Spain
| | - Karina V Mariño
- Laboratorio de Glicómica Funcional y Molecular, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina
| | - Gabriel A Rabinovich
- Laboratorio de Glicomedicina, Instituto de Biología y Medicina Experimental (IBYME), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), C1428 Ciudad de Buenos Aires, Argentina; Universidad de Buenos Aires, Facultad de Ciencias Exactas y Naturales, C1428 Ciudad de Buenos Aires, Argentina
| | - Jesús Jiménez-Barbero
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain; Ikerbasque, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Bizkaia, Spain; Department of Organic Chemistry II Faculty of Science and Technology University of the Basque Country, EHU-UPV Leioa, Spain; Centro de investigación Biomédica En Red de Enfermedades Respiratorias, Madrid, Spain.
| | - Ana Ardá
- CIC bioGUNE, Bizkaia Technology Park, Building 800, 48160 Derio, Bizkaia, Spain; Ikerbasque, Basque Foundation for Science, Maria Diaz de Haro 3, 48013 Bilbao, Bizkaia, Spain.
| |
Collapse
|
3
|
Miura A, Manabe Y, Suzuki KGN, Shomura H, Okamura S, Shirakawa A, Yano K, Miyake S, Mayusumi K, Lin CC, Morimoto K, Ishitobi J, Nakase I, Arai K, Kobayashi S, Ishikawa U, Kanoh H, Miyoshi E, Yamaji T, Kabayama K, Fukase K. De Novo Glycan Display on Cell Surfaces Using HaloTag: Visualizing the Effect of the Galectin Lattice on the Lateral Diffusion and Extracellular Vesicle Loading of Glycosylated Membrane Proteins. J Am Chem Soc 2024. [PMID: 38963258 DOI: 10.1021/jacs.4c02040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/05/2024]
Abstract
Glycans cover the cell surface to form the glycocalyx, which governs a myriad of biological phenomena. However, understanding and regulating glycan functions is extremely challenging due to the large number of heterogeneous glycans that engage in intricate interaction networks with diverse biomolecules. Glycocalyx-editing techniques offer potent tools to probe their functions. In this study, we devised a HaloTag-based technique for glycan manipulation, which enables the introduction of chemically synthesized glycans onto a specific protein (protein of interest, POI) and concurrently incorporates fluorescent units to attach homogeneous, well-defined glycans to the fluorescence-labeled POIs. Leveraging this HaloTag-based glycan-display system, we investigated the influence of the interactions between Gal-3 and various N-glycans on protein dynamics. Our analyses revealed that glycosylation modulates the lateral diffusion of the membrane proteins in a structure-dependent manner through interaction with Gal-3, particularly in the context of the Gal-3-induced formation of the glycan network (galectin lattice). Furthermore, N-glycan attachment was also revealed to have a significant impact on the extracellular vesicle-loading of membrane proteins. Notably, our POI-specific glycan introduction does not disrupt intact glycan structures, thereby enabling a functional analysis of glycans in the presence of native glycan networks. This approach complements conventional glycan-editing methods and provides a means for uncovering the molecular underpinnings of glycan functions on the cell surface.
Collapse
Affiliation(s)
- Ayane Miura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Yoshiyuki Manabe
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Kenichi G N Suzuki
- Institute for Glyco-core Research (iGCORE), Gifu University, Gifu 501-1193, Japan
- National Cancer Center Research Institute, Chuo-ku, Tokyo 104-0045, Japan
| | - Hiroki Shomura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Soichiro Okamura
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Asuka Shirakawa
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Kumpei Yano
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Shuto Miyake
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Koki Mayusumi
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
| | - Chun-Cheng Lin
- Department of Chemistry, National Tsing-Hua University, Hsinchu 30013, Taiwan
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
| | - Kenta Morimoto
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Jojiro Ishitobi
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Ikuhiko Nakase
- Department of Biological Chemistry, Graduate School of Science, Osaka Metropolitan University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
- Department of Biological Chemistry, School of Science, Osaka Metropolitan University, 1-1, Gakuen-cho, Naka-ku, Sakai, Osaka 599-8531, Japan
| | - Kenta Arai
- Advanced ICT Research Institute, National Institute of Information and Communications Technology, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe, Hyogo 651-2492, Japan
| | - Shouhei Kobayashi
- Advanced ICT Research Institute, National Institute of Information and Communications Technology, 588-2 Iwaoka, Iwaoka-cho, Nishi-ku, Kobe, Hyogo 651-2492, Japan
| | - Ushio Ishikawa
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1, Komatsushima, Aoba Ward, Sendai, Miyagi 981-8558, Japan
| | - Hirotaka Kanoh
- Division of Glycopathology, Institute of Molecular Biomembrane and Glycobiology, Tohoku Medical and Pharmaceutical University, 4-4-1, Komatsushima, Aoba Ward, Sendai, Miyagi 981-8558, Japan
| | - Eiji Miyoshi
- Department of Molecular Biochemistry and Clinical Investigation, Graduate School of Medicine, Osaka University, Suita, Osaka 565-0871, Japan
| | - Toshiyuki Yamaji
- Department of Biochemistry and Cell Biology, National Institute of Infectious Diseases, Shinjuku-ku, Tokyo 162-8640, Japan
| | - Kazuya Kabayama
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Interdisciplinary Research Center for Radiation Sciences, Institute for Radiation Sciences, Osaka University, 2-4 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Koichi Fukase
- Department of Chemistry, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Forefront Research Center, Graduate School of Science, Osaka University, 1-1 Machikaneyama, Toyonaka, Osaka 560-0043, Japan
- Center for Advanced Modalities and DDS, Osaka University, 1-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| |
Collapse
|
4
|
An L, Chang G, Zhang L, Wang P, Gao W, Li X. Pectin: Health-promoting properties as a natural galectin-3 inhibitor. Glycoconj J 2024; 41:93-118. [PMID: 38630380 DOI: 10.1007/s10719-024-10152-z] [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: 11/07/2023] [Revised: 12/17/2023] [Accepted: 04/10/2024] [Indexed: 05/03/2024]
Abstract
Galectin-3 has a variety of important pathophysiological significance in the human body. Much evidence shows that the abnormal expression of galectin-3 is related to the formation and development of many diseases. Pectin is mostly obtained from processed citrus fruits and apples and is a known natural inhibitor of galactin-3. A large number of peels produced each year are discarded, and it is necessary to recycle some of the economically valuable active compounds in these by-products to reduce resource waste and environmental pollution. By binding with galectin-3, pectin can directly reduce the expression level of galectin-3 on the one hand, and regulate the expression level of cytokines by regulating certain signaling pathways on the other hand, to achieve the effect of treating diseases. This paper begins by presenting an overview of the basic structure of pectin, subsequently followed by a description of the structure of galectin-3 and its detrimental impact on human health when expressed abnormally. The health effects of pectin as a galectin-3 inhibitor were then summarized from the perspectives of anticancer, anti-inflammatory, ameliorating fibrotic diseases, and anti-diabetes. Finally, the challenges and prospects of future research on pectin are presented, which provide important references for expanding the application of pectin in the pharmaceutical industry or developing functional dietary supplements.
Collapse
Affiliation(s)
- Lingzhuo An
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300193, China
| | - Guanglu Chang
- Key Laboratory of Modern Chinese Medicine Resources Research Enterprises, Tianjin, 300402, China
| | - Luyao Zhang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300193, China
| | - Pengwang Wang
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300193, China
| | - Wenyuan Gao
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300193, China.
| | - Xia Li
- Tianjin Key Laboratory for Modern Drug Delivery & High-Efficiency, School of Pharmaceutical Science and Technology, Tianjin University, No. 92 Weijin Road, Nankai District, Tianjin, 300193, China.
| |
Collapse
|
5
|
Johannes L, Shafaq-Zadah M, Dransart E, Wunder C, Leffler H. Endocytic Roles of Glycans on Proteins and Lipids. Cold Spring Harb Perspect Biol 2024; 16:a041398. [PMID: 37735065 PMCID: PMC10759989 DOI: 10.1101/cshperspect.a041398] [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: 09/23/2023]
Abstract
Most cell surface proteins are decorated by glycans, and the plasma membrane is rich in glycosylated lipids. The mechanisms by which the enormous complexity of these glycan structures on proteins and lipids is exploited to control glycoprotein activity by setting their cell surface residence time and the ways by which they are taken up into cells are still under active investigation. Here, two mechanisms are presented, termed galectin lattices and glycolipid-lectin (GL-Lect)-driven endocytosis, which are among the most prominent to establish a link between glycan information and endocytosis. Types of glycans on glycoproteins and glycolipids are reviewed from the angle of their interaction with glycan-binding proteins that are at the heart of galectin lattices and GL-Lect-driven endocytosis. Examples are given to show how these mechanisms affect cellular functions ranging from cell migration and signaling to vascularization and immune modulation. Finally, outstanding challenges on the link between glycosylation and endocytosis are discussed.
Collapse
Affiliation(s)
- Ludger Johannes
- Cellular and Chemical Biology Unit, Institut Curie, 75248 Paris Cedex 05, France
| | | | - Estelle Dransart
- Cellular and Chemical Biology Unit, Institut Curie, 75248 Paris Cedex 05, France
| | - Christian Wunder
- Cellular and Chemical Biology Unit, Institut Curie, 75248 Paris Cedex 05, France
| | - Hakon Leffler
- Section MIG (Microbiology, Immunology, Glycobiology), Department of Laboratory Medicine, Lund University, 22362 Lund, Sweden
| |
Collapse
|
6
|
Zhao Z, Wang M, Miller MC, He Z, Xu X, Zhou Y, Mayo KH, Tai G. Isomerization of proline-46 in the N-terminal tail of galectin-3 enhances T cell apoptosis via the ROS-ERK pathway. Int J Biol Macromol 2024; 256:128304. [PMID: 37992938 DOI: 10.1016/j.ijbiomac.2023.128304] [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: 09/11/2023] [Revised: 11/11/2023] [Accepted: 11/19/2023] [Indexed: 11/24/2023]
Abstract
Galectin-3 (Gal-3) is unique in the galectin family, due to the presence of a long N-terminal tail (NT) arising from its conserved carbohydrate recognition domain (CRD). Although functional significance of the NT has remained elusive, our previous studies demonstrated the importance of NT prolines to Gal-3 function. Here, we show that during the time Gal-3 stands in solution for three or more days, Gal-3 NT undergoes a slow, intra-molecular, time-dependent conformational/dynamical change associated with proline cis-trans isomerization. From initial dissolution of Gal-3 in buffer to three days in solution, Gal-3-mediated T cell apoptosis is enhanced from 23 % to 37 %. Western blotting and flow cytometry show that the enhancement occurs via the ROS-ERK pathway, and not by the PKC-ERK pathway. To assess which proline(s) is (are) responsible for this effect, we individually mutated all 14 NT prolines within the first 68 residues to alanines, and assessed their effect on ROS production. Our study shows that isomerization of P46 alone is responsible for the upregulation of ROS and T cell apoptosis. NMR studies show that this unique effect is mediated by a change in dynamic interactions between the NT and CRD F-face, which in turn leads to this change in Gal-3 function.
Collapse
Affiliation(s)
- Zihan Zhao
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Menghui Wang
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Michelle C Miller
- Department of Biochemistry, Molecular Biology & Biophysics, 6-155 Jackson Hall, University of Minnesota, Minneapolis, MN 55455, USA
| | - Zhen He
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Xuejiao Xu
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Yifa Zhou
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China
| | - Kevin H Mayo
- Department of Biochemistry, Molecular Biology & Biophysics, 6-155 Jackson Hall, University of Minnesota, Minneapolis, MN 55455, USA
| | - Guihua Tai
- Engineering Research Center of Glycoconjugates, Ministry of Education, Jilin Province Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| |
Collapse
|
7
|
Padgett CA, Bátori RK, Speese AC, Rosewater CL, Bush WB, Derella CC, Haigh SB, Sellers HG, Corley ZL, West MA, Mintz JD, Ange BB, Harris RA, Brands MW, Fulton DJR, Stepp DW. Galectin-3 Mediates Vascular Dysfunction in Obesity by Regulating NADPH Oxidase 1. Arterioscler Thromb Vasc Biol 2023; 43:e381-e395. [PMID: 37586054 PMCID: PMC10695282 DOI: 10.1161/atvbaha.123.319476] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 07/25/2023] [Indexed: 08/18/2023]
Abstract
BACKGROUND Obesity is associated with increased risk of cardiovascular disease, but underlying mechanisms remain elusive. Metabolic dysfunction, especially hyperglycemia, is thought to be a major contributor, but how glucose impacts vascular function is unclear. GAL3 (galectin-3) is a sugar-binding lectin upregulated by hyperglycemia, but its role as a causative mechanism of cardiovascular disease remains poorly understood. Therefore, the objective of this study was to determine the role of GAL3 in regulating microvascular endothelial vasodilation in obesity. METHODS GAL3 was measured and found to be markedly increased in the plasma of overweight and obese patients, as well as in the microvascular endothelium of diabetic patients. To investigate causative mechanisms in cardiovascular disease, mice deficient in GAL3 were bred with obese db/db mice to generate lean, lean GAL3 knockout, obese, and obese GAL3 knockout genotypes. Endothelial cell-specific GAL3 knockout mice with novel AAV-induced obesity recapitulated whole-body knockout studies to confirm cell specificity. RESULTS Deletion of GAL3 did not alter body mass, adiposity, or plasma indices of glycemia and lipidemia, but levels of plasma reactive oxygen species as assessed by plasma thiobarbituric acid reactive substances were normalized in obese GAL3 knockout mice. Obese mice exhibited profound endothelial dysfunction and hypertension, both of which were rescued by GAL3 deletion. Isolated microvascular endothelial cells from obese mice had increased expression of NOX1 (nicotinamide adenine dinucleotide phosphate oxidase 1), which we have previously shown to contribute to increased oxidative stress and endothelial dysfunction, which was normalized in microvascular endothelium from mice lacking GAL3. Cell-specific deletion confirmed that endothelial GAL3 regulates obesity-induced NOX1 overexpression and subsequent microvascular function. Furthermore, improvement of metabolic syndrome by increasing muscle mass, improving insulin signaling, or treating with metformin decreased microvascular GAL3, and thereby NOX1, expression levels. CONCLUSIONS Deletion of GAL3 normalizes microvascular endothelial function in obese db/db mice, likely through a NOX1-mediated mechanism. Pathological levels of GAL3, and in turn NOX1, are amenable to improvements in metabolic status, presenting a potential therapeutic target to ameliorate pathological cardiovascular consequences of obesity.
Collapse
Affiliation(s)
- Caleb A. Padgett
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Róbert K. Bátori
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Andrew C. Speese
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Cody L. Rosewater
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Weston B. Bush
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
| | - Cassandra C. Derella
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA
| | - Stephen B. Haigh
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Hunter G. Sellers
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Zachary L. Corley
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Madison A. West
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - James D. Mintz
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
| | - Brittany B. Ange
- Department of Surgery, Medical College of Georgia, Augusta University, Augusta, GA
| | - Ryan A. Harris
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
- Georgia Prevention Institute, Medical College of Georgia, Augusta University, Augusta, GA
| | - Michael W. Brands
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
| | - David J. R. Fulton
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
- Department of Pharmacology and Toxicology, Medical College of Georgia, Augusta University, Augusta, GA
| | - David W. Stepp
- Vascular Biology Center, Medical College of Georgia, Augusta University, Augusta, GA
- Department of Physiology, Medical College of Georgia, Augusta University, Augusta, GA
| |
Collapse
|
8
|
Mayo KH. Heterologous Interactions with Galectins and Chemokines and Their Functional Consequences. Int J Mol Sci 2023; 24:14083. [PMID: 37762385 PMCID: PMC10531749 DOI: 10.3390/ijms241814083] [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: 08/12/2023] [Revised: 09/11/2023] [Accepted: 09/12/2023] [Indexed: 09/29/2023] Open
Abstract
Extra- and intra-cellular activity occurs under the direction of numerous inter-molecular interactions, and in any tissue or cell, molecules are densely packed, thus promoting those molecular interactions. Galectins and chemokines, the focus of this review, are small, protein effector molecules that mediate various cellular functions-in particular, cell adhesion and migration-as well as cell signaling/activation. In the past, researchers have reported that combinations of these (and other) effector molecules act separately, yet sometimes in concert, but nevertheless physically apart and via their individual cell receptors. This view that each effector molecule functions independently of the other limits our thinking about functional versatility and cooperation, and, in turn, ignores the prospect of physiologically important inter-molecular interactions, especially when both molecules are present or co-expressed in the same cellular environment. This review is focused on such protein-protein interactions with chemokines and galectins, the homo- and hetero-oligomeric structures that they can form, and the functional consequences of those paired interactions.
Collapse
Affiliation(s)
- Kevin H Mayo
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota Health Sciences Center, 6-155 Jackson Hall, Minneapolis, MN 55455, USA
| |
Collapse
|
9
|
Bouffette S, Botez I, De Ceuninck F. Targeting galectin-3 in inflammatory and fibrotic diseases. Trends Pharmacol Sci 2023; 44:519-531. [PMID: 37391294 DOI: 10.1016/j.tips.2023.06.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2023] [Revised: 06/02/2023] [Accepted: 06/02/2023] [Indexed: 07/02/2023]
Abstract
Galectin (Gal)-3 is a β-galactoside-binding lectin emerging as a key player in cardiac, hepatic, renal, and pulmonary fibrosis and inflammation, respiratory infections caused by COVID-19, and neuroinflammatory disorders. Here, we review recent information highlighting Gal-3 as a relevant therapeutic target in these specific disease conditions. While a causal link was difficult to establish until now, we discuss how recent strategic breakthroughs allowed us to identify new-generation Gal-3 inhibitors with improved potency, selectivity, and bioavailability, and report their usefulness as valuable tools for proof-of-concept studies in various preclinical models of the aforementioned diseases, with emphasis on those actually in clinical stages. We also address critical views and suggestions intended to expand the therapeutic opportunities provided by this complex target.
Collapse
Affiliation(s)
- Selena Bouffette
- Servier, Neurology and Immuno-inflammation Therapeutic Area, Servier R&D Center, Gif-sur-Yvette, France; Université Paris-Saclay, Inserm, Inflammation Microbiome and Immunosurveillance, Orsay, France
| | - Iuliana Botez
- Servier, Drug Design Small Molecules Unit, Servier R&D Center, Gif-sur-Yvette, France
| | - Frédéric De Ceuninck
- Servier, Neurology and Immuno-inflammation Therapeutic Area, Servier R&D Center, Gif-sur-Yvette, France.
| |
Collapse
|
10
|
Zhou ZY, Chang TF, Lin ZB, Jing YT, Wen LS, Niu YL, Bai Q, Guo CM, Sun JX, Wang YS, Dou GR. Microglial Galectin3 enhances endothelial metabolism and promotes pathological angiogenesis via Notch inhibition by competitively binding to Jag1. Cell Death Dis 2023; 14:380. [PMID: 37369647 DOI: 10.1038/s41419-023-05897-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 05/26/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023]
Abstract
Microglia were considered as immune cells in inflammation until their angiogenic role was widely understood. Although the pro-inflammatory role of microglia in retinal angiogenesis has been explored, little is known about its role in pro-angiogenesis and the microglia-endothelia interaction. Here, we report that galectin-3 (Gal3) released by activated microglia functions as a communicator between microglia and endothelia and competitively binds to Jag1, thus inhibiting the Notch signaling pathway and enhancing endothelial angiogenic metabolism to promote angiogenesis. These results suggest that Gal3 may be a novel and effective target in the treatment of retinal angiogenesis.
Collapse
Affiliation(s)
- Zi-Yi Zhou
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Tian-Fang Chang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Zhi-Bin Lin
- Department of Hepatobiliary Surgery, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Yu-Tong Jing
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Li-Shi Wen
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Ya-Li Niu
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Qian Bai
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Chang-Mei Guo
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China
| | - Jia-Xing Sun
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Yu-Sheng Wang
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| | - Guo-Rui Dou
- Department of Ophthalmology, Eye Institute of Chinese PLA, Xijing Hospital, Fourth Military Medical University, Xi'an, 710032, China.
| |
Collapse
|
11
|
Vander Zanden CM, Majewski J, Weissbarth Y, Browne DF, Watkins EB, Gabius HJ. Structure of Galectin-3 bound to a model membrane containing ganglioside GM1. Biophys J 2023; 122:1926-1937. [PMID: 35986516 PMCID: PMC10257012 DOI: 10.1016/j.bpj.2022.08.018] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 08/05/2022] [Accepted: 08/15/2022] [Indexed: 11/02/2022] Open
Abstract
Galectin-3 (Gal-3) is a β-galactosidase-binding protein involved in various biological processes, including neuronal growth and adhesion. The pairing of Gal-3 with ganglioside GM1's pentasaccharide chain at the outer leaflet of the plasma membrane, which triggers downstream cell-signaling cascades, seems to be involved in these processes. A crucial feature of Gal-3 is its ability to form oligomers and supramolecular assemblies that connect various carbohydrate-decorated molecules. Although we know the atomistic structure of Gal-3 bound to small carbohydrate ligands, it remains unclear how Gal-3 binds GM1 in a membrane. Furthermore, the influence of this interaction on Gal-3's structure and oligomeric assembly has to be elucidated. In this study, we used X-ray reflectivity (XR) from a model membrane to determine the structure and surface coverage of Gal-3 bound to a membrane containing GM1. We observed that the carbohydrate recognition domain interacts with GM1's pentasaccharide, while the N-terminal domain is pointed away from the membrane, likely to facilitate protein-protein interactions. In a membrane containing 20 mol % GM1, Gal-3 covered ∼50% of the membrane surface with one Gal-3 molecule bound per 2130 Å2. We used molecular dynamics simulations and Voronoi tessellation algorithms to build an atomistic model of membrane-bound Gal-3, which is supported by the XR results. Overall, this work provides structural information describing how Gal-3 can bind GM1's pentasaccharide chain, a prerequisite for triggering regulatory processes in neuronal growth and adhesion.
Collapse
Affiliation(s)
- Crystal M Vander Zanden
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado.
| | - Jaroslaw Majewski
- Division of Molecular and Cellular Biology, National Science Foundation, Alexandria, Virginia; Department of Chemical and Biological Engineering and Center for Biomedical Engineering, University of New Mexico, Albuquerque, New Mexico; Theoretical Biology & Biophysics, Los Alamos National Laboratory, Los Alamos, New Mexico
| | - Yvonne Weissbarth
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado
| | - Danielle F Browne
- Department of Chemistry and Biochemistry, University of Colorado at Colorado Springs, Colorado Springs, Colorado
| | - Erik B Watkins
- MPA-11: Materials Synthesis and Integrated Devices, Los Alamos National Laboratory, Los Alamos, New Mexico
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Planegg, Germany
| |
Collapse
|
12
|
Padgett CA, Bátori RK, Speese AC, Rosewater CL, Bush WB, Derella CC, Haigh SB, Sellers HG, Corley ZL, West MA, Mintz JD, Ange BB, Harris RA, Brands MW, Fulton DJR, Stepp DW. Galectin-3 Mediates Vascular Dysfunction in Obesity by Regulating NADPH Oxidase 1. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.04.19.537592. [PMID: 37131826 PMCID: PMC10153253 DOI: 10.1101/2023.04.19.537592] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/04/2023]
Abstract
Rationale Obesity increases the risk of cardiovascular disease (CVD) through mechanisms that remain incompletely defined. Metabolic dysfunction, especially hyperglycemia, is thought to be a major contributor but how glucose impacts vascular function is unclear. Galectin-3 (GAL3) is a sugar binding lectin upregulated by hyperglycemia but its role as a causative mechanism of CVD remains poorly understood. Objective To determine the role of GAL3 in regulating microvascular endothelial vasodilation in obesity. Methods and Results GAL3 was markedly increased in the plasma of overweight and obese patients, as well as in the microvascular endothelium of diabetic patients. To investigate a role for GAL3 in CVD, mice deficient in GAL3 were bred with obese db/db mice to generate lean, lean GAL3 knockout (KO), obese, and obese GAL3 KO genotypes. GAL3 KO did not alter body mass, adiposity, glycemia or lipidemia, but normalized elevated markers of reactive oxygen species (TBARS) in plasma. Obese mice exhibited profound endothelial dysfunction and hypertension, both of which were rescued by GAL3 deletion. Isolated microvascular endothelial cells (EC) from obese mice had increased NOX1 expression, which we have previously shown to contribute to increased oxidative stress and endothelial dysfunction, and NOX1 levels were normalized in EC from obese mice lacking GAL3. EC-specific GAL3 knockout mice made obese using a novel AAV-approach recapitulated whole-body knockout studies, confirming that endothelial GAL3 drives obesity-induced NOX1 overexpression and endothelial dysfunction. Improved metabolism through increased muscle mass, enhanced insulin signaling, or metformin treatment, decreased microvascular GAL3 and NOX1. GAL3 increased NOX1 promoter activity and this was dependent on GAL3 oligomerization. Conclusions Deletion of GAL3 normalizes microvascular endothelial function in obese db/db mice, likely through a NOX1-mediated mechanism. Pathological levels of GAL3 and in turn, NOX1, are amenable to improvements in metabolic status, presenting a potential therapeutic target to ameliorate pathological cardiovascular consequences of obesity.
Collapse
|
13
|
Zhu L, Tang Y, Li XY, Kerk SA, Lyssiotis CA, Sun X, Wang Z, Cho JS, Ma J, Weiss SJ. Proteolytic regulation of a galectin-3/Lrp1 axis controls osteoclast-mediated bone resorption. J Cell Biol 2023; 222:e202206121. [PMID: 36880731 PMCID: PMC9998966 DOI: 10.1083/jcb.202206121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2022] [Revised: 12/18/2022] [Accepted: 01/23/2023] [Indexed: 03/08/2023] Open
Abstract
Bone-resorbing osteoclasts mobilize proteolytic enzymes belonging to the matrix metalloproteinase (MMP) family to directly degrade type I collagen, the dominant extracellular matrix component of skeletal tissues. While searching for additional MMP substrates critical to bone resorption, Mmp9/Mmp14 double-knockout (DKO) osteoclasts-as well as MMP-inhibited human osteoclasts-unexpectedly display major changes in transcriptional programs in tandem with compromised RhoA activation, sealing zone formation and bone resorption. Further study revealed that osteoclast function is dependent on the ability of Mmp9 and Mmp14 to cooperatively proteolyze the β-galactoside-binding lectin, galectin-3, on the cell surface. Mass spectrometry identified the galectin-3 receptor as low-density lipoprotein-related protein-1 (Lrp1), whose targeting in DKO osteoclasts fully rescues RhoA activation, sealing zone formation and bone resorption. Together, these findings identify a previously unrecognized galectin-3/Lrp1 axis whose proteolytic regulation controls both the transcriptional programs and the intracellular signaling cascades critical to mouse as well as human osteoclast function.
Collapse
Affiliation(s)
- Lingxin Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Yi Tang
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Xiao-Yan Li
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Samuel A. Kerk
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Doctoral Program in Cancer Biology, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Costas A. Lyssiotis
- Department of Internal Medicine, Division of Gastroenterology, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Department of Molecular and Integrative Physiology, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Rogel Cancer Center, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Xiaoyue Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Zijun Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education, School and Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Jung-Sun Cho
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Jun Ma
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| | - Stephen J. Weiss
- Division of Genetic Medicine, Department of Internal Medicine, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
- Life Sciences Institute, University of Michigan, Ann Arbor, Ann Arbor, MI, USA
| |
Collapse
|
14
|
Voss PG, Wang JL. Liquid-liquid phase separation: Galectin-3 in nuclear speckles and ribonucleoprotein complexes. Exp Cell Res 2023; 427:113571. [PMID: 37003559 DOI: 10.1016/j.yexcr.2023.113571] [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: 01/29/2023] [Revised: 03/19/2023] [Accepted: 03/24/2023] [Indexed: 04/03/2023]
Abstract
Nuclear speckles are subcellular structures originally characterized by punctate immunofluorescence staining of the monoclonal antibody SC35, which recognizes an epitope on SRRM2 (serine/arginine repetitive matrix protein 2) and Sfrs2, a member of the SR (serine/arginine-rich) family of splicing factors. Galectin-3 co-localizes with SC35 in nuclear speckles, which represent one group of nuclear bodies that include the nucleolus, Cajal bodies and gems, paraspeckles, etc. Although they appear to have well-delineated physical boundaries, these nuclear bodies are not membrane-bound structures but represent macromolecular assemblies arising from a phenomenon called liquid-liquid phase separation. There has been much recent interest in liquid phase condensation as a newly recognized mechanism by which a cell can organize and compartmentalize subcellular structures with distinct composition. The punctate/speckled staining of galectin-3 with SC3 demonstrates their co-localization in a phase-separated body in vivo, under conditions endogenous to the cell. The purpose of the present review is to summarize the studies that document three key features of galectin-3 for its localization in liquid phase condensates: (a) an intrinsically disordered domain; (b) oligomer formation for multivalent binding; and (c) association with RNA and ribonucleoprotein complexes.
Collapse
Affiliation(s)
- Patricia G Voss
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA
| | - John L Wang
- Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI, 48824, USA.
| |
Collapse
|
15
|
Ezhilarasan D. Unraveling the pathophysiologic role of galectin-3 in chronically injured liver. J Cell Physiol 2023; 238:673-686. [PMID: 36745560 DOI: 10.1002/jcp.30956] [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: 03/22/2022] [Revised: 01/04/2023] [Accepted: 01/12/2023] [Indexed: 02/07/2023]
Abstract
Galectin-3 (Gal-3) previously referred to as S-type lectins, is a soluble protein that specifically binds to β-galactoside carbohydrates with high specificity. Gal-3 plays a pivotal role in a variety of pathophysiological processes such as cell proliferation, inflammation, differentiation, angiogenesis, transformation and apoptosis, pre-mRNA splicing, metabolic syndromes, fibrosis, and host defense. The role of Gal-3 has also been implicated in liver diseases. Gal-3 is activated upon a hepatotoxic insult to the liver and its level has been shown to be upregulated in fatty liver diseases, inflammation, nonalcoholic steatohepatitis, fibrosis, cholangitis, cirrhosis, and hepatocellular carcinoma (HCC). Gal-3 directly interacts with the NOD-like receptor family, pyrin domain containing 3, and activates the inflammasome in macrophages of the liver. In the chronically injured liver, Gal-3 secreted by injured hepatocytes and immune cells, activates hepatic stellate cells (HSCs) in a paracrine fashion to acquire a myofibroblast like collagen-producing phenotype. Activated HSCs in the fibrotic liver secrete Gal-3 which acts via autocrine signaling to exacerbate extracellular matrix synthesis and fibrogenesis. In the stromal microenvironment, Gal-3 activates cancer cell proliferation, migration, invasiveness, and metastasis. Clinically, increased serum levels and Gal-3 expression were observed in the liver tissue of nonalcoholic steatohepatitis, fibrotic/cirrhotic, and HCC patients. The pathological role of Gal-3 has been experimentally and clinically reported in the progression of chronic liver disease. Therefore, this review discusses the pathological role of Gal-3 in the progression of chronic liver diseases.
Collapse
Affiliation(s)
- Devaraj Ezhilarasan
- Department of Pharmacology, Molecular Medicine and Toxicology Lab, Saveetha Dental College, Saveetha Institute of Medical and Technical Sciences, Chennai, Tamil Nadu, India
| |
Collapse
|
16
|
Highlights on the Role of Galectin-3 in Colorectal Cancer and the Preventive/Therapeutic Potential of Food-Derived Inhibitors. Cancers (Basel) 2022; 15:cancers15010052. [PMID: 36612048 PMCID: PMC9817985 DOI: 10.3390/cancers15010052] [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: 11/10/2022] [Revised: 12/16/2022] [Accepted: 12/19/2022] [Indexed: 12/24/2022] Open
Abstract
Colorectal cancer (CRC) is a leading cause of death worldwide. Despite advances in surgical and therapeutic management, tumor metastases and resistance to therapy still represent major hurdles. CRC risk is highly modifiable by lifestyle factors, including diet, which strongly influences both cancer incidence and related mortality. Galectin-3 (Gal-3) is a multifaceted protein involved in multiple pathophysiological pathways underlying chronic inflammation and cancer. Its versatility is given by the ability to participate in a wide range of tumor-promoting processes, including cell-cell/cell-matrix interactions, cell growth regulation and apoptosis, and the immunosuppressive tumor microenvironment. This review provides an updated summary of preclinical and observational human studies investigating the pathogenetic role of Gal-3 in intestinal inflammation and CRC, as well as the potential of Gal-3 activity inhibition by plant-source food-derived bioactive compounds to control CRC onset/growth. These studies highlight both direct and immuno-mediated effects of Gal-3 on tumor growth and invasiveness and its potential role as a CRC prognostic biomarker. Substantial evidence indicates natural food-derived Gal-3 inhibitors as promising candidates for CRC prevention and therapy. However, critical issues, such as their bioavailability and efficacy, in controlled human studies need to be addressed to translate research progress into clinical applications.
Collapse
|
17
|
Sarangi N, Shafaq-Zadah M, Berselli GB, Robinson J, Dransart E, Di Cicco A, Lévy D, Johannes L, Keyes TE. Galectin-3 Binding to α 5β 1 Integrin in Pore Suspended Biomembranes. J Phys Chem B 2022; 126:10000-10017. [PMID: 36413808 PMCID: PMC9743206 DOI: 10.1021/acs.jpcb.2c05717] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Galectin-3 (Gal3) is a β-galactoside binding lectin that mediates many physiological functions, including the binding of cells to the extracellular matrix for which the glycoprotein α5β1 integrin is of critical importance. The mechanisms by which Gal3 interacts with membranes have not been widely explored to date due to the complexity of cell membranes and the difficulty of integrin reconstitution within model membranes. Herein, to study their interaction, Gal3 and α5β1 were purified, and the latter reconstituted into pore-suspended lipid bilayers comprised eggPC:eggPA. Using electrochemical impedance and fluorescence lifetime correlation spectroscopy, we found that on incubation with low nanomolar concentrations of wild-type Gal3, the membrane's admittance and fluidity, as well as integrin's lateral diffusivity, were enhanced. These effects were diminished in the following conditions: (i) absence of integrin, (ii) presence of lactose as a competitive inhibitor of glycan-Gal3 interaction, and (iii) use of a Gal3 mutant that lacked the N-terminal oligomerization domain (Gal3ΔNter). These findings indicated that WTGal3 oligomerized on α5β1 integrin in a glycan-dependent manner and that the N-terminal domain interacted directly with membranes in a way that is yet to be fully understood. At concentrations above 10 nM of WTGal3, membrane capacitance started to decrease and very slowly diffusing molecular species appeared, which indicated the formation of protein clusters made from WTGal3-α5β1 integrin assemblies. Overall, our study demonstrates the capacity of WTGal3 to oligomerize in a cargo protein-dependent manner at low nanomolar concentrations. Of note, these WTGal3 oligomers appeared to have membrane active properties that could only be revealed using our sensitive methods. At slightly higher WTGal3 concentrations, the capacity to generate lateral assemblies between cargo proteins was observed. In cells, this could lead to the construction of tubular endocytic pits according to the glycolipid-lectin (GL-Lect) hypothesis or to the formation of galectin lattices, depending on cargo glycoprotein stability at the membrane, the local Gal3 concentration, or plasma membrane intrinsic parameters. The study also demonstrates the utility of microcavity array-suspended lipid bilayers to address the biophysics of transmembrane proteins.
Collapse
Affiliation(s)
- Nirod
Kumar Sarangi
- School
of Chemical Sciences and National Centre for Sensor Research, Dublin City University, DCU Glasnevin Campus, D09 V209Dublin 9, Ireland
| | - Massiullah Shafaq-Zadah
- Institut
Curie, PSL Research University, U1143 INSERM, UMR3666 CNRS, Cellular
and Chemical Biology Unit, 75248Paris Cedex 05, France
| | - Guilherme B. Berselli
- School
of Chemical Sciences and National Centre for Sensor Research, Dublin City University, DCU Glasnevin Campus, D09 V209Dublin 9, Ireland
| | - Jack Robinson
- School
of Chemical Sciences and National Centre for Sensor Research, Dublin City University, DCU Glasnevin Campus, D09 V209Dublin 9, Ireland
| | - Estelle Dransart
- Institut
Curie, PSL Research University, U1143 INSERM, UMR3666 CNRS, Cellular
and Chemical Biology Unit, 75248Paris Cedex 05, France
| | - Aurélie Di Cicco
- Institut
Curie, PSL Research University, UMR 168 CNRS, 75248Paris Cedex 05, France
| | - Daniel Lévy
- Institut
Curie, PSL Research University, UMR 168 CNRS, 75248Paris Cedex 05, France
| | - Ludger Johannes
- Institut
Curie, PSL Research University, U1143 INSERM, UMR3666 CNRS, Cellular
and Chemical Biology Unit, 75248Paris Cedex 05, France,
| | - Tia E. Keyes
- School
of Chemical Sciences and National Centre for Sensor Research, Dublin City University, DCU Glasnevin Campus, D09 V209Dublin 9, Ireland,
| |
Collapse
|
18
|
Bhattacharya S, Zhang M, Hu W, Qi T, Heisterkamp N. Targeting disordered-structured domain interactions in Galectin-3 based on NMR and enhanced MD. Biophys J 2022; 121:4342-4357. [PMID: 36209362 PMCID: PMC9703043 DOI: 10.1016/j.bpj.2022.10.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2021] [Revised: 05/18/2022] [Accepted: 10/06/2022] [Indexed: 12/14/2022] Open
Abstract
Intrinsically disordered regions (IDRs) are common and important functional domains in many proteins. However, IDRs are difficult to target for drug development due to the lack of defined structures that would facilitate the identification of possible drug-binding pockets. Galectin-3 is a carbohydrate-binding protein of which overexpression has been implicated in a wide variety of disorders, including cancer and inflammation. Apart from its carbohydrate-recognition/binding domain (CRD), Galectin-3 also contains a functionally important disordered N-terminal domain (NTD) that contacts the C-terminal domain (CTD) and could be a target for drug development. To overcome challenges involved in inhibitor design due to lack of structure and the highly dynamic nature of the NTD, we used a protocol combining nuclear magnetic resonance data from recombinant Galectin-3 with accelerated molecular dynamics (MD) simulations. This approach identified a pocket in the CTD with which the NTD makes frequent contact. In accordance with this model, mutation of residues L131 and L203 in this pocket caused loss of Galectin-3 agglutination ability, signifying the functional relevance of the cavity. In silico screening was used to design candidate inhibitory peptides targeting the newly discovered cavity, and experimental testing of only three of these yielded one peptide that inhibits the agglutination promoted by wild-type Galectin-3. NMR experiments further confirmed that this peptide indeed binds to a cavity in the CTD, not within the actual CRD. Our results show that it is possible to apply a combination of MD simulations and NMR experiments to precisely predict the binding interface of a disordered domain with a structured domain, and furthermore use this predicted interface for designing inhibitors. This procedure can potentially be extended to many other targets in which similar IDR interactions play a vital functional role.
Collapse
Affiliation(s)
- Supriyo Bhattacharya
- Integrative Genomics Core, Beckman Research Institute, City of Hope National Medical Center, Duarte, CA 91010, USA
| | - Mingfeng Zhang
- Department of Systems Biology, Beckman Research Institute City of Hope, Monrovia, California
| | - Weidong Hu
- Department of Molecular Imaging and Therapy, Beckman Research Institute of City of Hope, Duarte, California
| | - Tong Qi
- Department of Systems Biology, Beckman Research Institute City of Hope, Monrovia, California
| | - Nora Heisterkamp
- Department of Systems Biology, Beckman Research Institute City of Hope, Monrovia, California.
| |
Collapse
|
19
|
Nangia-Makker P, Hogan V, Balan V, Raz A. Chimeric galectin-3 and collagens: Biomarkers and potential therapeutic targets in fibroproliferative diseases. J Biol Chem 2022; 298:102622. [PMID: 36272642 PMCID: PMC9706532 DOI: 10.1016/j.jbc.2022.102622] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2022] [Revised: 10/13/2022] [Accepted: 10/14/2022] [Indexed: 11/27/2022] Open
Abstract
Fibrosis, stiffening and scarring of an organ/tissue due to genetic abnormalities, environmental factors, infection, and/or injury, is responsible for > 40% of all deaths in the industrialized world, and to date, there is no cure for it despite extensive research and numerous clinical trials. Several biomarkers have been identified, but no effective therapeutic targets are available. Human galectin-3 is a chimeric gene product formed by the fusion of the internal domain of the collagen alpha gene [N-terminal domain (ND)] at the 5'-end of galectin-1 [C-terminal domain (CRD)] that appeared during evolution together with vertebrates. Due to the overlapping structural similarities between collagen and galectin-3 and their shared susceptibility to cleavage by matrix metalloproteases to generate circulating collagen-like peptides, this review will discuss present knowledge on the role of collagen and galectin-3 as biomarkers of fibrosis. We will also highlight the need for transformative approaches targeting both the ND and CRD domains of galectin-3, since glycoconjugate binding by the CRD is triggered by ND-mediated oligomerization and the therapies targeted only at the CRD have so far achieved limited success.
Collapse
Affiliation(s)
- Pratima Nangia-Makker
- Barbara Ann Karmanos Cancer Institute, Department of Oncology, School of Medicine, Redwood City, California, USA,For correspondence: Pratima Nangia-Makker; Avraham Raz
| | - Victor Hogan
- Barbara Ann Karmanos Cancer Institute, Department of Oncology, School of Medicine, Redwood City, California, USA
| | - Vitaly Balan
- Guardant Health, Bioinformatics, Redwood City, California, USA
| | - Avraham Raz
- Barbara Ann Karmanos Cancer Institute, Department of Oncology, School of Medicine, Redwood City, California, USA,Department of Pathology, School of Medicine, Wayne State University, Detroit, Michigan, USA,For correspondence: Pratima Nangia-Makker; Avraham Raz
| |
Collapse
|
20
|
Mohammed NBB, Antonopoulos A, Dell A, Haslam SM, Dimitroff CJ. The pleiotropic role of galectin-3 in melanoma progression: Unraveling the enigma. Adv Cancer Res 2022; 157:157-193. [PMID: 36725108 PMCID: PMC9895887 DOI: 10.1016/bs.acr.2022.06.001] [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: 02/05/2023]
Abstract
Melanoma is a highly aggressive skin cancer with poor outcomes associated with distant metastasis. Intrinsic properties of melanoma cells alongside the crosstalk between melanoma cells and surrounding microenvironment determine the tumor behavior. Galectin-3 (Gal-3), a ß-galactoside-binding lectin, has emerged as a major effector in cancer progression, including melanoma behavior. Data from melanoma models and patient studies reveal that Gal-3 expression is dysregulated, both intracellularly and extracellularly, throughout the stages of melanoma progression. This review summarizes the most recent data and hypotheses on Gal-3 and its tumor-modulating functions, highlighting its role in driving melanoma growth, invasion, and metastatic colonization. It also provides insight into potential Gal-3-targeted strategies for melanoma diagnosis and treatment.
Collapse
Affiliation(s)
- Norhan B B Mohammed
- Department of Translational Medicine, Translational Glycobiology Institute at FIU (TGIF), Herbert Wertheim College of Medicine, Florida International University, Miami, FL, United States; Department of Medical Biochemistry, Faculty of Medicine, South Valley University, Qena, Egypt
| | | | - Anne Dell
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Stuart M Haslam
- Department of Life Sciences, Imperial College London, London, United Kingdom
| | - Charles J Dimitroff
- Department of Translational Medicine, Translational Glycobiology Institute at FIU (TGIF), Herbert Wertheim College of Medicine, Florida International University, Miami, FL, United States.
| |
Collapse
|
21
|
Wu SC, Ho AD, Kamili NA, Wang J, Murdock KL, Cummings RD, Arthur CM, Stowell SR. Full-Length Galectin-3 Is Required for High Affinity Microbial Interactions and Antimicrobial Activity. Front Microbiol 2021; 12:731026. [PMID: 34690972 PMCID: PMC8531552 DOI: 10.3389/fmicb.2021.731026] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 08/30/2021] [Indexed: 12/13/2022] Open
Abstract
While adaptive immunity enables the recognition of a wide range of microbial antigens, immunological tolerance limits reactively toward self to reduce autoimmunity. Some bacteria decorate themselves with self-like antigens as a form of molecular mimicry to limit recognition by adaptive immunity. Recent studies suggest that galectin-4 (Gal-4) and galectin-8 (Gal-8) may provide a unique form of innate immunity against molecular mimicry by specifically targeting microbes that decorate themselves in self-like antigens. However, the binding specificity and antimicrobial activity of many human galectins remain incompletely explored. In this study, we defined the binding specificity of galectin-3 (Gal-3), the first galectin shown to engage microbial glycans. Gal-3 exhibited high binding toward mammalian blood group A, B, and αGal antigens in a glycan microarray format. In the absence of the N-terminal domain, the C-terminal domain of Gal-3 (Gal-3C) alone exhibited a similar overall binding pattern, but failed to display the same level of binding for glycans over a range of concentrations. Similar to the recognition of mammalian glycans, Gal-3 and Gal-3C also specifically engaged distinct microbial glycans isolated and printed in a microarray format, with Gal-3 exhibiting higher binding at lower concentrations toward microbial glycans than Gal-3C. Importantly, Gal-3 and Gal-3C interactions on the microbial microarray accurately predicted actual interactions toward intact microbes, with Gal-3 and Gal-3C displaying carbohydrate-dependent binding toward distinct strains of Providentia alcalifaciens and Klebsiella pneumoniae that express mammalian-like antigens, while failing to recognize similar strains that express unrelated antigens. While both Gal-3 and Gal-3C recognized specific strains of P. alcalifaciens and K. pneumoniae, only Gal-3 was able to exhibit antimicrobial activity even when evaluated at higher concentrations. These results demonstrate that while Gal-3 and Gal-3C specifically engage distinct mammalian and microbial glycans, Gal-3C alone does not possess antimicrobial activity.
Collapse
Affiliation(s)
- Shang-Chuen Wu
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Alex D Ho
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Nourine A Kamili
- Center for Transfusion Medicine and Cellular Therapies, Emory University School of Medicine, Atlanta, GA, United States
| | - Jianmei Wang
- Center for Transfusion Medicine and Cellular Therapies, Emory University School of Medicine, Atlanta, GA, United States
| | - Kaleb L Murdock
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Richard D Cummings
- Department of Surgery, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, United States
| | - Connie M Arthur
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States
| | - Sean R Stowell
- Joint Program in Transfusion Medicine, Department of Pathology, Brigham and Women's Hospital, Harvard Medical School, Boston, MA, United States.,Center for Transfusion Medicine and Cellular Therapies, Emory University School of Medicine, Atlanta, GA, United States
| |
Collapse
|
22
|
N-terminal tail prolines of Gal-3 mediate its oligomerization/phase separation. Proc Natl Acad Sci U S A 2021; 118:2107023118. [PMID: 34088794 DOI: 10.1073/pnas.2107023118] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
|