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Jacob R, Gorek LS. Intracellular galectin interactions in health and disease. Semin Immunopathol 2024; 46:4. [PMID: 38990375 PMCID: PMC11239732 DOI: 10.1007/s00281-024-01010-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2023] [Accepted: 03/07/2024] [Indexed: 07/12/2024]
Abstract
In the galectin family, a group of lectins is united by their evolutionarily conserved carbohydrate recognition domains. These polypeptides play a role in various cellular processes and are implicated in disease mechanisms such as cancer, fibrosis, infection, and inflammation. Following synthesis in the cytosol, manifold interactions of galectins have been described both extracellularly and intracellularly. Extracellular galectins frequently engage with glycoproteins or glycolipids in a carbohydrate-dependent manner. Intracellularly, galectins bind to non-glycosylated proteins situated in distinct cellular compartments, each with multiple cellular functions. This diversity complicates attempts to form a comprehensive understanding of the role of galectin molecules within the cell. This review enumerates intracellular galectin interaction partners and outlines their involvement in cellular processes. The intricate connections between galectin functions and pathomechanisms are illustrated through discussions of intracellular galectin assemblies in immune and cancer cells. This underscores the imperative need to fully comprehend the interplay of galectins with the cellular machinery and to devise therapeutic strategies aimed at counteracting the establishment of galectin-based disease mechanisms.
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Affiliation(s)
- Ralf Jacob
- Department of Cell Biology and Cell Pathology, Philipps University of Marburg, Karl-von-Frisch-Str. 14, D-35043, Marburg, Germany.
| | - Lena-Sophie Gorek
- Department of Cell Biology and Cell Pathology, Philipps University of Marburg, Karl-von-Frisch-Str. 14, D-35043, Marburg, Germany
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2
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Liu C, Zhou L, Chen J, Yang Z, Chen S, Wang X, Liu X, Li Y, Zhang C, Wang Y, Chen Y, Li H, Shen C, Sun H. Galectin-7 promotes cisplatin efficacy by facilitating apoptosis and G3BP1 degradation in cervical cancer. Biochem Pharmacol 2023; 217:115834. [PMID: 37778447 DOI: 10.1016/j.bcp.2023.115834] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2023] [Revised: 09/23/2023] [Accepted: 09/26/2023] [Indexed: 10/03/2023]
Abstract
The emergence of chemoresistance in cervical cancer is extremely challenging in chemotherapy. Oxidative stress has emerged as the regulatory factor in drug resistance, but the detailed mechanism is still unknown. Stress granules, are membrane-less ribonucleoprotein-based condensates, could enhance chemoresistance by sequestering proapoptotic proteins inhibition of cell death upon exposure to drug-induced oxidative stress. Galectin-7, a member of galectin family, exerts varied roles in tumor repression or progression in different cancers. However, its role in cervical cancer has not been sufficiently studied. Here, we found that galectin-7 promotes cisplatin (CDDP) induced apoptosis and associates with stress granule-nucleating protein G3BP1 degradation. With the treatment of cisplatin, galectin-7 could enhance apoptosis by upregulating cleaved-PARP1 and the generation of reactive oxygen species (ROS), promoting mitochondrial fission, and reducing mitochondrial membrane potential (MMP). Furthermore, galectin-7 also reduces resistance by facilitating cisplatin-induced stress granules clearance through galectin-7/RACK1/G3BP1 axis. All these data suggested that galectin-7 promotes cisplatin sensitivity, and it would be potential target for potentiating efficacy in cervical cancer chemotherapy.
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Affiliation(s)
- Chenglong Liu
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Limin Zhou
- Department of Gynecology, Maternal and Child Health Hospital of Hubei Province, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - Jia Chen
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Zelan Yang
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Shan Chen
- School of Medicine, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Xueqing Wang
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Xiaomei Liu
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yang Li
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Can Zhang
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yirong Wang
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Yihao Chen
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Huan Li
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Chao Shen
- College of Life Sciences, Wuhan University, Wuhan 430072, China
| | - Hui Sun
- College of Life Sciences, Wuhan University, Wuhan 430072, China; Hubei Province Key Laboratory of Allergy and Immunology, Wuhan University, Wuhan 430071, China.
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3
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Nehmé R, St-Pierre Y. Targeting intracellular galectins for cancer treatment. Front Immunol 2023; 14:1269391. [PMID: 37753083 PMCID: PMC10518623 DOI: 10.3389/fimmu.2023.1269391] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2023] [Accepted: 08/22/2023] [Indexed: 09/28/2023] Open
Abstract
Although considerable attention has been paid to the role of extracellular galectins in modulating, positively or negatively, tumor growth and metastasis, we have witnessed a growing interest in the role of intracellular galectins in response to their environment. This is not surprising as many galectins preferentially exist in cytosolic and nuclear compartments, which is consistent with the fact that they are exported outside the cells via a yet undefined non-classical mechanism. This review summarizes our most recent knowledge of their intracellular functions in cancer cells and provides some directions for future strategies to inhibit their role in cancer progression.
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Affiliation(s)
| | - Yves St-Pierre
- INRS-Centre Armand-Frappier Santé Biotechnologie, Laval, QC, Canada
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Zheng L, Xia J, Ge P, Meng Y, Li W, Li M, Wang M, Song C, Fan Y, Zhou Y. The interrelation of galectins and autophagy. Int Immunopharmacol 2023; 120:110336. [PMID: 37262957 DOI: 10.1016/j.intimp.2023.110336] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 05/03/2023] [Accepted: 05/10/2023] [Indexed: 06/03/2023]
Abstract
Autophagy is a vital physiological process that maintains intracellular homeostasis by removing damaged organelles and senescent or misfolded molecules. However, excessive autophagy results in cell death and apoptosis, which will lead to a variety of diseases. Galectins are a type of animal lectin that binds to β-galactosides and can bind to the cell surface or extracellular matrix glycans, affecting a variety of immune processes in vivo and being linked to the development of many diseases. In many cases, galectins and autophagy both play important regulatory roles in the cellular life course, yet our understanding of the relationship between them is still incomplete. Galectins and autophagy may share common etiological cofactors for some diseases. Hence, we summarize the relationship between galectins and autophagy, aiming to draw attention to the existence of multiple associations between galectins and autophagy in a variety of physiological and pathological processes, which provide new ideas for etiological diagnosis, drug development, and therapeutic targets for related diseases.
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Affiliation(s)
- Lujuan Zheng
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Jing Xia
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Pengyu Ge
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Yuhan Meng
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Weili Li
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Mingming Li
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Min Wang
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Chengcheng Song
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
| | - Yuying Fan
- Engineering Research Center of Glycoconjugates of Ministry of Education, Jilin Provincial 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 of Ministry of Education, Jilin Provincial Key Laboratory of Chemistry and Biology of Changbai Mountain Natural Drugs, School of Life Sciences, Northeast Normal University, Changchun 130024, China.
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Ko FCF, Yan S, Lee KW, Lam SK, Ho JCM. Chimera and Tandem-Repeat Type Galectins: The New Targets for Cancer Immunotherapy. Biomolecules 2023; 13:902. [PMID: 37371482 DOI: 10.3390/biom13060902] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 05/24/2023] [Accepted: 05/24/2023] [Indexed: 06/29/2023] Open
Abstract
In humans, a total of 12 galectins have been identified. Their intracellular and extracellular biological functions are explored and discussed in this review. These galectins play important roles in controlling immune responses within the tumour microenvironment (TME) and the infiltration of immune cells, including different subsets of T cells, macrophages, and neutrophils, to fight against cancer cells. However, these infiltrating cells also have repair roles and are hijacked by cancer cells for pro-tumorigenic activities. Upon a better understanding of the immunomodulating functions of galectin-3 and -9, their inhibitors, namely, GB1211 and LYT-200, have been selected as candidates for clinical trials. The use of these galectin inhibitors as combined treatments with current immune checkpoint inhibitors (ICIs) is also undergoing clinical trial investigations. Through their network of binding partners, inhibition of galectin have broad downstream effects acting on CD8+ cytotoxic T cells, regulatory T cells (Tregs), Natural Killer (NK) cells, and macrophages as well as playing pro-inflammatory roles, inhibiting T-cell exhaustion to support the fight against cancer cells. Other galectin members are also included in this review to provide insight into potential candidates for future treatment(s). The pitfalls and limitations of using galectins and their inhibitors are also discussed to cognise their clinical application.
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Affiliation(s)
- Frankie Chi Fat Ko
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - Sheng Yan
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - Ka Wai Lee
- Pathology Department, Baptist Hospital, Waterloo Road, Kowloon, Hong Kong, China
| | - Sze Kwan Lam
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
| | - James Chung Man Ho
- Department of Medicine, School of Clinical Medicine, Li Ka Shing Faculty of Medicine, The University of Hong Kong, Queen Mary Hospital, 102 Pokfulam Road, Hong Kong, China
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Placental Galectins in Cancer: Why We Should Pay More Attention. Cells 2023; 12:cells12030437. [PMID: 36766779 PMCID: PMC9914345 DOI: 10.3390/cells12030437] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2023] [Revised: 01/15/2023] [Accepted: 01/26/2023] [Indexed: 01/31/2023] Open
Abstract
The first studies suggesting that abnormal expression of galectins is associated with cancer were published more than 30 years ago. Today, the role of galectins in cancer is relatively well established. We know that galectins play an active role in many types of cancer by regulating cell growth, conferring cell death resistance, or inducing local and systemic immunosuppression, allowing tumor cells to escape the host immune response. However, most of these studies have focused on very few galectins, most notably galectin-1 and galectin-3, and more recently, galectin-7 and galectin-9. Whether other galectins play a role in cancer remains unclear. This is particularly true for placental galectins, a subgroup that includes galectin-13, -14, and -16. The role of these galectins in placental development has been well described, and excellent reviews on their role during pregnancy have been published. At first sight, it was considered unlikely that placental galectins were involved in cancer. Yet, placentation and cancer progression share several cellular and molecular features, including cell invasion, immune tolerance and vascular remodeling. The development of new research tools and the concomitant increase in database repositories for high throughput gene expression data of normal and cancer tissues provide a new opportunity to examine the potential involvement of placental galectins in cancer. In this review, we discuss the possible roles of placental galectins in cancer progression and why they should be considered in cancer studies. We also address challenges associated with developing novel research tools to investigate their protumorigenic functions and design highly specific therapeutic drugs.
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Glycobiology of cellular expiry: Decrypting the role of glycan-lectin regulatory complex and therapeutic strategies focusing on cancer. Biochem Pharmacol 2023; 207:115367. [PMID: 36481348 DOI: 10.1016/j.bcp.2022.115367] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2022] [Revised: 11/25/2022] [Accepted: 11/29/2022] [Indexed: 12/12/2022]
Abstract
Often the outer leaflets of living cells bear a coat of glycosylated proteins, which primarily regulates cellular processes. Glycosylation of such proteins occurs as part of their post-translational modification. Within the endoplasmic reticulum, glycosylation enables the attachment of specific oligosaccharide moieties such as, 'glycan' to the transmembrane receptor proteins which confers precise biological information for governing the cell fate. The nature and degree of glycosylation of cell surface receptors are regulated by a bunch of glycosyl transferases and glycosidases which fine-tune attachment or detachment of glycan moieties. In classical death receptors, upregulation of glycosylation by glycosyl transferases is capable of inducing cell death in T cells, tumor cells, etc. Thus, any deregulated alternation at surface glycosylation of these death receptors can result in life-threatening disorder like cancer. In addition, transmembrane glycoproteins and lectin receptors can transduce intracellular signals for cell death execution. Exogenous interaction of lectins with glycan containing death receptors signals for cell death initiation by modulating downstream signalings. Subsequently, endogenous glycan-lectin interplay aids in the customization and implementation of the cell death program. Lastly, the glycan-lectin recognition system dictates the removal of apoptotic cells by sending accurate signals to the extracellular milieu. Since glycosylation has proven to be a biomarker of cellular death and disease progression; glycans serve as specific therapeutic targets of cancers. In this context, we are reviewing the molecular mechanisms of the glycan-lectin regulatory network as an integral part of cell death machinery in cancer to target them for successful therapeutic and clinical approaches.
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8
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Menkhorst E, Than NG, Jeschke U, Barrientos G, Szereday L, Dveksler G, Blois SM. Medawar's PostEra: Galectins Emerged as Key Players During Fetal-Maternal Glycoimmune Adaptation. Front Immunol 2022; 12:784473. [PMID: 34975875 PMCID: PMC8715898 DOI: 10.3389/fimmu.2021.784473] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 11/15/2021] [Indexed: 12/12/2022] Open
Abstract
Lectin-glycan interactions, in particular those mediated by the galectin family, regulate many processes required for a successful pregnancy. Over the past decades, increasing evidence gathered from in vitro and in vivo experiments indicate that members of the galectin family specifically bind to both intracellular and membrane bound carbohydrate ligands regulating angiogenesis, immune-cell adaptations required to tolerate the fetal semi-allograft and mammalian embryogenesis. Therefore, galectins play important roles in fetal development and placentation contributing to maternal and fetal health. This review discusses the expression and role of galectins during the course of pregnancy, with an emphasis on maternal immune adaptions and galectin-glycan interactions uncovered in the recent years. In addition, we summarize the galectin fingerprints associated with pathological gestation with particular focus on preeclampsia.
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Affiliation(s)
- Ellen Menkhorst
- Department of Obstetrics and Gynaecology, University of Melbourne, Melbourne, VIC, Australia.,Gynaecological Research Centre, The Women's Hospital, Melbourne, VIC, Australia
| | - Nandor Gabor Than
- Systems Biology of Reproduction Research Group, Institute of Enyzmology, Research Centre for Natural Sciences, Budapest, Hungary
| | - Udo Jeschke
- Department of Obstetrics and Gynecology, University Hospital Augsburg, Augsburg, Germany
| | - Gabriela Barrientos
- Laboratorio de Medicina Experimental, Hospital Alemán-Consejo Nacional de Investigaciones Científicas y Técnicas, Ciudad Autónoma de Buenos Aires, Argentina
| | - Laszlo Szereday
- Medical School, Department of Medical Microbiology and Immunology, University of Pecs, Pecs, Hungary
| | - Gabriela Dveksler
- Department of Pathology, Uniformed Services University, Bethesda, MD, United States
| | - Sandra M Blois
- Department of Obstetrics and Fetal Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
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Proux-Gillardeaux V, Advedissian T, Perin C, Gelly JC, Viguier M, Deshayes F. Identification of a new regulation pathway of EGFR and E-cadherin dynamics. Sci Rep 2021; 11:22705. [PMID: 34811416 PMCID: PMC8609017 DOI: 10.1038/s41598-021-02042-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2021] [Accepted: 11/08/2021] [Indexed: 12/15/2022] Open
Abstract
E-cadherin and EGFR are known to be closely associated hence regulating differentiation and proliferation notably in epithelia. We have previously shown that galectin-7 binds to E-cadherin and favors its retention at the plasma membrane. In this study, we shed in light that galectin-7 establishes a physical link between E-cadherin and EGFR. Indeed, our results demonstrate that galectin-7 also binds to EGFR, but unlike the binding to E-cadherin this binding is sugar dependent. The establishment of E-cadherin/EGFR complex and the binding of galectin-7 to EGFR thus lead to a regulation of its signaling and intracellular trafficking allowing cell proliferation and migration control. In vivo observations further support these results since an epidermal thickening is observed in galectin-7 deficient mice. This study therefore reveals that galectin-7 controls epidermal homeostasis through the regulation of E-cadherin/EGFR balance.
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Affiliation(s)
| | - Tamara Advedissian
- Membrane Traffic and Cell Division Laboratory, Institut Pasteur, UMR3691, CNRS, 75015, Paris, France
| | - Charlotte Perin
- Université de Paris, UMR_S1134, BIGR, Inserm, 75006, Paris, France.,Institut National de Transfusion Sanguine, 75015, Paris, France
| | - Jean-Christophe Gelly
- Université de Paris, UMR_S1134, BIGR, Inserm, 75006, Paris, France.,Institut National de Transfusion Sanguine, 75015, Paris, France
| | - Mireille Viguier
- CNRS, Institut Jacques Monod, Université de Paris, F-75013, Paris, France
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Pham NTH, Létourneau M, Fortier M, Bégin G, Al-Abdul-Wahid MS, Pucci F, Folch B, Rooman M, Chatenet D, St-Pierre Y, Lagüe P, Calmettes C, Doucet N. Perturbing dimer interactions and allosteric communication modulates the immunosuppressive activity of human galectin-7. J Biol Chem 2021; 297:101308. [PMID: 34673030 PMCID: PMC8592873 DOI: 10.1016/j.jbc.2021.101308] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 10/10/2021] [Accepted: 10/11/2021] [Indexed: 11/16/2022] Open
Abstract
The design of allosteric modulators to control protein function is a key objective in drug discovery programs. Altering functionally essential allosteric residue networks provides unique protein family subtype specificity, minimizes unwanted off-target effects, and helps avert resistance acquisition typically plaguing drugs that target orthosteric sites. In this work, we used protein engineering and dimer interface mutations to positively and negatively modulate the immunosuppressive activity of the proapoptotic human galectin-7 (GAL-7). Using the PoPMuSiC and BeAtMuSiC algorithms, mutational sites and residue identity were computationally probed and predicted to either alter or stabilize the GAL-7 dimer interface. By designing a covalent disulfide bridge between protomers to control homodimer strength and stability, we demonstrate the importance of dimer interface perturbations on the allosteric network bridging the two opposite glycan-binding sites on GAL-7, resulting in control of induced apoptosis in Jurkat T cells. Molecular investigation of G16X GAL-7 variants using X-ray crystallography, biophysical, and computational characterization illuminates residues involved in dimer stability and allosteric communication, along with discrete long-range dynamic behaviors involving loops 1, 3, and 5. We show that perturbing the protein-protein interface between GAL-7 protomers can modulate its biological function, even when the overall structure and ligand-binding affinity remains unaltered. This study highlights new avenues for the design of galectin-specific modulators influencing both glycan-dependent and glycan-independent interactions.
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Affiliation(s)
- N T Hang Pham
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Myriam Létourneau
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Marlène Fortier
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Gabriel Bégin
- Département de Biochimie, de Microbiologie et de Bio-informatique and Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, Quebec, Canada; PROTEO, the Québec Network for Research on Protein Function, Engineering, and Applications, Université Laval, Québec, Quebec, Canada
| | | | - Fabrizio Pucci
- Computational Biology and Bioinformatics, Université Libre de Bruxelles, Brussels, Belgium
| | - Benjamin Folch
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Marianne Rooman
- Computational Biology and Bioinformatics, Université Libre de Bruxelles, Brussels, Belgium
| | - David Chatenet
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Yves St-Pierre
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada
| | - Patrick Lagüe
- Département de Biochimie, de Microbiologie et de Bio-informatique and Institut de Biologie Intégrative et des Systèmes (IBIS), Université Laval, Québec, Quebec, Canada; PROTEO, the Québec Network for Research on Protein Function, Engineering, and Applications, Université Laval, Québec, Quebec, Canada
| | - Charles Calmettes
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada; PROTEO, the Québec Network for Research on Protein Function, Engineering, and Applications, Université Laval, Québec, Quebec, Canada
| | - Nicolas Doucet
- Centre Armand-Frappier Santé Biotechnologie, Institut National de la Recherche Scientifique (INRS), Université du Québec, Laval, Quebec, Canada; PROTEO, the Québec Network for Research on Protein Function, Engineering, and Applications, Université Laval, Québec, Quebec, Canada.
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Unraveling How Tumor-Derived Galectins Contribute to Anti-Cancer Immunity Failure. Cancers (Basel) 2021; 13:cancers13184529. [PMID: 34572756 PMCID: PMC8469970 DOI: 10.3390/cancers13184529] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/17/2021] [Revised: 08/16/2021] [Accepted: 08/24/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary This review compiles our current knowledge of one of the main pathways activated by tumors to escape immune attack. Indeed, it integrates the current understanding of how tumor-derived circulating galectins affect the elicitation of effective anti-tumor immunity. It focuses on several relevant topics: which are the main galectins produced by tumors, how soluble galectins circulate throughout biological liquids (taking a body-settled gradient concentration into account), the conditions required for the galectins’ functions to be accomplished at the tumor and tumor-distant sites, and how the physicochemical properties of the microenvironment in each tissue determine their functions. These are no mere semantic definitions as they define which functions can be performed in said tissues instead. Finally, we discuss the promising future of galectins as targets in cancer immunotherapy and some outstanding questions in the field. Abstract Current data indicates that anti-tumor T cell-mediated immunity correlates with a better prognosis in cancer patients. However, it has widely been demonstrated that tumor cells negatively manage immune attack by activating several immune-suppressive mechanisms. It is, therefore, essential to fully understand how lymphocytes are activated in a tumor microenvironment and, above all, how to prevent these cells from becoming dysfunctional. Tumors produce galectins-1, -3, -7, -8, and -9 as one of the major molecular mechanisms to evade immune control of tumor development. These galectins impact different steps in the establishment of the anti-tumor immune responses. Here, we carry out a critical dissection on the mechanisms through which tumor-derived galectins can influence the production and the functionality of anti-tumor T lymphocytes. This knowledge may help us design more effective immunotherapies to treat human cancers.
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12
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Imitating evolution's tinkering by protein engineering reveals extension of human galectin-7 activity. Histochem Cell Biol 2021; 156:253-272. [PMID: 34152508 PMCID: PMC8460509 DOI: 10.1007/s00418-021-02004-w] [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] [Accepted: 06/09/2021] [Indexed: 12/23/2022]
Abstract
Wild-type lectins have distinct types of modular design. As a step to explain the physiological importance of their special status, hypothesis-driven protein engineering is used to generate variants. Concerning adhesion/growth-regulatory galectins, non-covalently associated homodimers are commonly encountered in vertebrates. The homodimeric galectin-7 (Gal-7) is a multifunctional context-dependent modulator. Since the possibility of conversion from the homodimer to hybrids with other galectin domains, i.e. from Gal-1 and Gal-3, has recently been discovered, we designed Gal-7-based constructs, i.e. stable (covalently linked) homo- and heterodimers. They were produced and purified by affinity chromatography, and the sugar-binding activity of each lectin unit proven by calorimetry. Inspection of profiles of binding of labeled galectins to an array-like platform with various cell types, i.e. sections of murine epididymis and jejunum, and impact on neuroblastoma cell proliferation revealed no major difference between natural and artificial (stable) homodimers. When analyzing heterodimers, acquisition of altered properties was seen. Remarkably, binding properties and activity as effector can depend on the order of arrangement of lectin domains (from N- to C-termini) and on the linker length. After dissociation of the homodimer, the Gal-7 domain can build new functionally active hybrids with other partners. This study provides a clear direction for research on defining the full range of Gal-7 functionality and offers the perspective of testing applications for engineered heterodimers.
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Towards a Better Understanding of the Relationships between Galectin-7, p53 and MMP-9 during Cancer Progression. Biomolecules 2021; 11:biom11060879. [PMID: 34198494 PMCID: PMC8231854 DOI: 10.3390/biom11060879] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 06/10/2021] [Accepted: 06/11/2021] [Indexed: 12/28/2022] Open
Abstract
It has been almost 25 years since the discovery of galectin-7. This member of the galectin family has attracted interest from many working in the cancer field given its highly restricted expression profile in epithelial cells and the fact that cancers of epithelial origin (carcinoma) are among the most frequent and deadly cancer subtypes. Initially described as a p53-induced gene and associated with apoptosis, galectin-7 is now recognized as having a protumorigenic role in many cancer types. Several studies have indeed shown that galectin-7 is associated with aggressive behavior of cancer cells and induces expression of MMP-9, a member of the matrix metalloproteinases (MMP) family known to confer invasive behavior to cancer cells. It is therefore not surprising that many studies have examined its relationships with p53 and MMP-9. However, the relationships between galectin-7 and p53 and MMP-9 are not always clear. This is largely because p53 is often mutated in cancer cells and such mutations drastically change its functions and, consequently, its association with galectin-7. In this review, we discuss the functional relationships between galectin-7, p53 and MMP-9 and reconcile some apparently contradictory observations. A better understanding of these relationships will help to develop a working hypothesis and model that will provide the basis for further research in the hope of establishing a new paradigm for tackling the role of galectin-7 in cancer.
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Porębska N, Poźniak M, Matynia A, Żukowska D, Zakrzewska M, Otlewski J, Opaliński Ł. Galectins as modulators of receptor tyrosine kinases signaling in health and disease. Cytokine Growth Factor Rev 2021; 60:89-106. [PMID: 33863623 DOI: 10.1016/j.cytogfr.2021.03.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/11/2022]
Abstract
Receptor tyrosine kinases (RTKs) constitute a large group of cell surface proteins that mediate communication of cells with extracellular environment. RTKs recognize external signals and transfer information to the cell interior, modulating key cellular activities, like metabolism, proliferation, motility, or death. To ensure balanced stream of signals the activity of RTKs is tightly regulated by numerous mechanisms, including receptor expression and degradation, ligand specificity and availability, engagement of co-receptors, cellular trafficking of the receptors or their post-translational modifications. One of the most widespread post-translational modifications of RTKs is glycosylation of their extracellular domains. The sugar chains attached to RTKs form a new layer of information, so called glyco-code that is read by galectins, carbohydrate binding proteins. Galectins are family of fifteen lectins implicated in immune response, inflammation, cell division, motility and death. The versatility of cellular activities attributed to galectins is a result of their high abundance and diversity of their cellular targets. A various sugar specificity of galectins and the differential ability of galectin family members to form oligomers affect the spatial distribution and the function of their cellular targets. Importantly, galectins and RTKs are tightly linked to the development, progression and metastasis of various cancers. A growing number of studies points on the close cooperation between RTKs and galectins in eliciting specific cellular responses. This review focuses on the identified complexes between galectins and RTK members and discusses their relevance for the cell physiology both in healthy tissues and in cancer.
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Affiliation(s)
- Natalia Porębska
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Marta Poźniak
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Aleksandra Matynia
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Dominika Żukowska
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Małgorzata Zakrzewska
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Jacek Otlewski
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland
| | - Łukasz Opaliński
- Faculty of Biotechnology, Department of Protein Engineering, University of Wroclaw, Joliot-Curie 14a, 50-383, Wroclaw, Poland.
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15
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Wei X, Zheng Y, Zhang W, Tan J, Zheng H. Ultrasound‑targeted microbubble destruction‑mediated Galectin‑7‑siRNA promotes the homing of bone marrow mesenchymal stem cells to alleviate acute myocardial infarction in rats. Int J Mol Med 2020; 47:677-687. [PMID: 33416139 PMCID: PMC7797467 DOI: 10.3892/ijmm.2020.4830] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Accepted: 10/19/2020] [Indexed: 12/13/2022] Open
Abstract
Bone marrow mesenchymal stem cells (BMSCs) are accepted as a form of cellular therapy to improve cardiac function following acute myocardial infarction (AMI). The present study was performed to investigate the synergistic effect of ultrasound-targeted microbubble destruction (UTMD)-mediated Galectin-7-small interfering (si)RNA with the homing of BMSCs for AMI. The rat model of AMI was established, followed by identification of BMSCs. Rats with AMI received BMSC transplantation, BMSC transplantation + UTMD + siRNA negative control, or BMSC transplantation + UTMD + Galectin-7-siRNA. The cardiac function, hemodynamics indexes, degree of myocardial fiber injury and expression of apoptosis-related proteins in myocardial tissues of rats were detected. The homing of BMSCs was observed, and the indexes of myocardial microenvironment and the TGF-β/Smads pathway-related proteins in myocardial tissues were determined. AMI rats treated with UTMD-mediated Galectin-7-siRNA exhibited improved cardiac function and hemodynamics-related indices, decreased myocardial fiber injury and apoptotic cells, as well as enhanced homing ability of BMSCs, improved myocardial microenvironment, and suppressed TGF-β1/Smads pathway activation. In conclusion, the present study demonstrated that UTMD-mediated Galectin-7-siRNA treatment could enhance the homing ability of BMSCs, thus alleviating AMI in rats.
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Affiliation(s)
- Xin Wei
- Department of Ultrasound, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Yan Zheng
- Department of Ultrasound, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Weilin Zhang
- Department of Ultrasound, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
| | - Jing Tan
- Department of Cardiology, Guizhou Provincial People's Hospital, Guiyang, Guizhou 550002, P.R. China
| | - Hong Zheng
- Department of Ultrasound, People's Hospital of Deyang City, Deyang, Sichuan 618000, P.R. China
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16
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Le Guernic A, Geffard A, Rioult D, Bigot-Clivot A, Leprêtre M, Palos Ladeiro M. Cellular and molecular complementary immune stress markers for the model species Dreissena polymorpha. FISH & SHELLFISH IMMUNOLOGY 2020; 107:452-462. [PMID: 33197585 DOI: 10.1016/j.fsi.2020.10.027] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 09/25/2020] [Accepted: 10/27/2020] [Indexed: 06/11/2023]
Abstract
This study aimed to combine cellular and molecular analyses for better detail the effects of various stresses on a sentinel species of freshwater invertebrate. For this purpose, the hemocytes of the zebra mussel, Dreissena polymorpha, were exposed to different stresses at two different intensities, high or low: chemical (cadmium and ionomycin), physical (ultraviolet B), or biological ones (Cryptosporidium parvum and Toxoplasma gondii). After exposure, flow cytometry and droplet digital PCR analyses were performed on the same pools of hemocytes. Several responses related to necrosis, apoptosis, phagocytosis, production of nitric oxide and expression level of several genes related to the antioxidant, detoxification and immune systems were evaluated. Results showed that hemocyte integrity was compromised by both chemical and physical stress, and cellular markers of phagocytosis reacted to ionomycin and protozoa. While cadmium induced oxidative stress and necrosis, ionomycin tends to modulate the immune response of hemocytes. Although both biological stresses led to a similar immune response, C. parvum oocysts induced more effects than T. gondii, notably through the expression of effector caspases gene and an increase in hemocyte necrosis. This suggests different management of the two protozoa by the cell. This work provides new knowledge of biomarkers in the zebra mussel, at both cellular and molecular levels, and contributes to elucidate the mechanisms of action of different kinds of stress in this species.
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Affiliation(s)
- Antoine Le Guernic
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France.
| | - Alain Geffard
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France
| | - Damien Rioult
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France; Plateau Technique Mobile en Cytométrie Environnementale MOBICYTE, URCA/INERIS, URCA, 51687, Reims, France
| | - Aurélie Bigot-Clivot
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France
| | - Maxime Leprêtre
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France
| | - Mélissa Palos Ladeiro
- Reims Champagne-Ardenne University (URCA), Campus Moulin de La Housse, UMR-I02 SEBIO, 51687, Reims, France
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17
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Klein ML, Romero A, Kaltner H, Percec V, Gabius HJ. From examining the relationship between (corona)viral adhesins and galectins to glyco-perspectives. Biophys J 2020; 120:1031-1039. [PMID: 33248129 DOI: 10.1016/j.bpj.2020.11.020] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Revised: 10/23/2020] [Accepted: 11/17/2020] [Indexed: 12/16/2022] Open
Abstract
Glycan-lectin recognition is vital to processes that impact human health, including viral infections. Proceeding from crystallographical evidence of case studies on adeno-, corona-, and rotaviral spike proteins, the relationship of these adhesins to mammalian galectins was examined by computational similarity assessments. Intrafamily diversity among human galectins was in the range of that to these viral surface proteins. Our findings are offered to inspire the consideration of lectin-based approaches to thwart infection by present and future viral threats, also mentioning possible implications for vaccine development.
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Affiliation(s)
- Michael L Klein
- Institute of Computational Molecular Science, Temple University, Philadelphia, Pennsylvania.
| | - Antonio Romero
- Department of Structural and Chemical Biology, CIB Margarita Salas, CSIC, Madrid, Spain
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany
| | - Virgil Percec
- Roy & Diana Vagelos Laboratories, Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Munich, Germany.
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18
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Miller MC, Nesmelova IV, Daragan VA, Ippel H, Michalak M, Dregni A, Kaltner H, Kopitz J, Gabius HJ, Mayo KH. Pro4 prolyl peptide bond isomerization in human galectin-7 modulates the monomer-dimer equilibrum to affect function. Biochem J 2020; 477:3147-3165. [PMID: 32766716 PMCID: PMC7473712 DOI: 10.1042/bcj20200499] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2020] [Revised: 08/03/2020] [Accepted: 08/06/2020] [Indexed: 02/06/2023]
Abstract
Human galectin-7 (Gal-7; also termed p53-induced gene 1 product) is a multifunctional effector by productive pairing with distinct glycoconjugates and protein counter-receptors in the cytoplasm and nucleus, as well as on the cell surface. Its structural analysis by NMR spectroscopy detected doubling of a set of particular resonances, an indicator of Gal-7 existing in two conformational states in slow exchange on the chemical shift time scale. Structural positioning of this set of amino acids around the P4 residue and loss of this phenomenon in the bioactive P4L mutant indicated cis-trans isomerization at this site. Respective resonance assignments confirmed our proposal of two Gal-7 conformers. Mapping hydrogen bonds and considering van der Waals interactions in molecular dynamics simulations revealed a structural difference for the N-terminal peptide, with the trans-state being more exposed to solvent and more mobile than the cis-state. Affinity for lactose or glycan-inhibitable neuroblastoma cell surface contact formation was not affected, because both conformers associated with an overall increase in order parameters (S2). At low µM concentrations, homodimer dissociation is more favored for the cis-state of the protein than its trans-state. These findings give direction to mapping binding sites for protein counter-receptors of Gal-7, such as Bcl-2, JNK1, p53 or Smad3, and to run functional assays at low concentration to test the hypothesis that this isomerization process provides a (patho)physiologically important molecular switch for Gal-7.
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Affiliation(s)
- Michelle C. Miller
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
| | - Irina V. Nesmelova
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
| | - Vladimir A. Daragan
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
| | - Hans Ippel
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
- Department of Biochemistry, CARIM, University of Maastricht, Maastricht, The Netherlands
| | - Malwina Michalak
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Aurelio Dregni
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximillians-University Munich, Munich, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University Heidelberg, Heidelberg, Germany
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximillians-University Munich, Munich, Germany
| | - Kevin H. Mayo
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, Minneapolis, MN 55455 U.S.A
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19
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Menkhorst E, Zhou W, Santos LL, Delforce S, So T, Rainczuk K, Loke H, Syngelaki A, Varshney S, Williamson N, Pringle K, Young MJ, Nicolaides KH, St-Pierre Y, Dimitriadis E. Galectin-7 Impairs Placentation and Causes Preeclampsia Features in Mice. Hypertension 2020; 76:1185-1194. [PMID: 32862708 DOI: 10.1161/hypertensionaha.120.15313] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Preeclampsia is a serious pregnancy-induced disorder unique to humans. The etiology of preeclampsia is poorly understood; however, poor placental formation is thought causal. Galectin-7 is produced by trophoblast and is elevated in first-trimester serum of women who subsequently develop preeclampsia. We hypothesized that elevated placental galectin-7 may be causative of preeclampsia. Here, we demonstrated increased galectin-7 production in chorionic villous samples from women who subsequently develop preterm preeclampsia compared with uncomplicated pregnancies. In vitro, galectin-7 impaired human first-trimester trophoblast outgrowth, increased placental production of the antiangiogenic sFlt-1 splice variant, sFlt-1-e15a, and reduced placental production and secretion of ADAM12 (a disintegrin and metalloproteinase12) and angiotensinogen. In vivo, galectin-7 administration (E8-E12) to pregnant mice caused elevated systolic blood pressure, albuminuria, impaired placentation (reduced labyrinth vascular branching, impaired decidual spiral artery remodeling, and a proinflammatory placental state demonstrated by elevated IL1β, IL6 and reduced IL10), and dysregulated expression of renin-angiotensin system components in the placenta, decidua, and kidney, including angiotensinogen, prorenin, and the angiotensin II type 1 receptor. Collectively, this study demonstrates that elevated galectin-7 during placental formation contributes to abnormal placentation and suggests that it leads to the development of preeclampsia via altering placental production of sFlt-1 and renin-angiotensin system components. Targeting galectin-7 may be a new treatment option for preeclampsia.
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Affiliation(s)
- Ellen Menkhorst
- From the Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia (E.M., K.R., H.L., E.D.)
| | - Wei Zhou
- From the Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.)
| | - Leilani L Santos
- From the Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.)
| | - Sarah Delforce
- School of Biomedical Sciences and Pharmacy (S.D., K.P.), University of Newcastle, NSW, Australia.,Priority Research Centre for Reproductive Sciences (S.D., K.P.), University of Newcastle, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medical Research Institute, Newcastle, NSW, Australia (S.D., K.P.)
| | - Teresa So
- From the Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.)
| | - Kate Rainczuk
- Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia (E.M., K.R., H.L., E.D.)
| | - Hannah Loke
- Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia (E.M., K.R., H.L., E.D.)
| | - Argyro Syngelaki
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, United Kingdom (A.S., K.H.N.)
| | - Swati Varshney
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, VIC, Australia (S.V., N.W.)
| | - Nicholas Williamson
- Melbourne Mass Spectrometry and Proteomics Facility, Bio21 Molecular Science & Biotechnology Institute, The University of Melbourne, VIC, Australia (S.V., N.W.)
| | - Kirsty Pringle
- School of Biomedical Sciences and Pharmacy (S.D., K.P.), University of Newcastle, NSW, Australia.,Priority Research Centre for Reproductive Sciences (S.D., K.P.), University of Newcastle, NSW, Australia.,Pregnancy and Reproduction Program, Hunter Medical Research Institute, Newcastle, NSW, Australia (S.D., K.P.)
| | - Morag J Young
- Centre for Endocrinology and Metabolism, Hudson Institute of Medical Research, Clayton, VIC, Australia (M.J.Y.).,Baker Heart & Diabetes Institute, Prahran, VIC, Australia (M.J.Y.)
| | - Kypros H Nicolaides
- Harris Birthright Research Centre for Fetal Medicine, King's College Hospital, London, United Kingdom (A.S., K.H.N.)
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Laval, QC, Canada (Y.S.-P.)
| | - Eva Dimitriadis
- From the Department of Obstetrics and Gynaecology, The University of Melbourne, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Gynaecology Research Centre, Royal Women's Hospital, Parkville, VIC, Australia (E.M., W.Z., L.L.S., T.S., E.D.).,Centre for Reproductive Health, Hudson Institute of Medical Research, Clayton, VIC, Australia (E.M., K.R., H.L., E.D.).,Department of Anatomy and Developmental Biology, Monash University, Clayton, VIC, Australia (E.D.)
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20
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Al-Alem LF, Baker AT, Pandya UM, Eisenhauer EL, Rueda BR. Understanding and Targeting Apoptotic Pathways in Ovarian Cancer. Cancers (Basel) 2019; 11:cancers11111631. [PMID: 31652965 PMCID: PMC6893837 DOI: 10.3390/cancers11111631] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Revised: 10/17/2019] [Accepted: 10/18/2019] [Indexed: 12/11/2022] Open
Abstract
Ovarian cancer cells evade the immune system as well as chemotherapeutic and/or biologic treatments through inherent or acquired mechanisms of survival and drug resistance. Depending on the cell type and the stimuli, this threshold can range from external forces such as blunt trauma to programmed processes such as apoptosis, autophagy, or necroptosis. This review focuses on apoptosis, which is one form of programmed cell death. It highlights the multiple signaling pathways that promote or inhibit apoptosis and reviews current clinical therapies that target apoptotic pathways in ovarian cancer.
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Affiliation(s)
- Linah F Al-Alem
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Andrew T Baker
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Unnati M Pandya
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
| | - Eric L Eisenhauer
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
- Gynecology and Oncology Division, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
| | - Bo R Rueda
- Vincent Center for Reproductive Biology, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
- Obstetrics and Gynecology, Harvard Medical School, Boston, MA 02115, USA.
- Gynecology and Oncology Division, Department of Obstetrics and Gynecology, Massachusetts General Hospital, Boston, MA 02114, USA.
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21
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Athari SS. Targeting cell signaling in allergic asthma. Signal Transduct Target Ther 2019; 4:45. [PMID: 31637021 PMCID: PMC6799822 DOI: 10.1038/s41392-019-0079-0] [Citation(s) in RCA: 163] [Impact Index Per Article: 32.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Revised: 09/03/2019] [Accepted: 09/15/2019] [Indexed: 02/08/2023] Open
Abstract
Asthma is chronic inflammation of the airways characterized by airway hyper-responsiveness, wheezing, cough, and dyspnea. Asthma affects >350 million people worldwide. The Th2 immune response is a major contributor to the pathophysiology of asthma. Targeted therapy modulating cell signaling pathways can be a powerful strategy to design new drugs to treat asthma. The potential molecular pathways that can be targeted include IL-4-IL-13-JAK-STAT-MAP kinases, adiponectin-iNOS-NF-κB, PGD2-CRTH2, IFNs-RIG, Wnt/β-catenin-FAM13A, FOXC1-miR-PI3K/AKT, JNK-Gal-7, Nrf2-ROS, Foxp3-RORγt, CysLTR, AMP, Fas-FasL, PTHrP/PPARγ, PAI-1, FcɛRI-LAT-SLP-76, Tim-3-Gal-9, TLRs-MyD88, PAR2, and Keap1/Nrf2/ARE. Therapeutic drugs can be designed to target one or more of these pathways to treat asthma.
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Affiliation(s)
- Seyyed Shamsadin Athari
- Department of Immunology, School of Medicine, Zanjan University of Medical Sciences, Zanjan, Iran
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22
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Decoding the sweet regulation of apoptosis: the role of glycosylation and galectins in apoptotic signaling pathways. Cell Death Differ 2019; 26:981-993. [PMID: 30903104 DOI: 10.1038/s41418-019-0317-6] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Revised: 02/02/2019] [Accepted: 02/25/2019] [Indexed: 12/17/2022] Open
Abstract
Glycosylation and glycan-binding proteins such as galectins play an important role in the control of cell death signaling. Strikingly, very little attention has been given so far to the understanding of the molecular details behind this key regulatory network. Glycans attached to the death receptors such as CD95 and TRAIL-Rs, either alone or in a complex with galectins, might promote or inhibit apoptotic signals. However, we have just started to decode the functions of galectins in the modulation of extrinsic and intrinsic apoptosis. In this work, we have discussed the current understanding of the glycosylation-galectin regulatory network in CD95- as well as TRAIL-R-induced apoptosis and therapeutic strategies based on targeting galectins in cancer.
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23
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Silencing of Gal-7 inhibits TGF-β 1-induced apoptosis of human airway epithelial cells through JNK signaling pathway. Exp Cell Res 2018; 375:100-105. [PMID: 30594507 DOI: 10.1016/j.yexcr.2018.12.017] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Revised: 12/17/2018] [Accepted: 12/20/2018] [Indexed: 01/04/2023]
Abstract
Apoptosis of epithelial cells is regarded as the initial pathological process of many lung diseases, including asthma. Previous studies have identified that galectin-7 (Gal-7), a regulator of apoptosis, was overexpressed in bronchial epithelial cells in asthma. However, the effect and mechanism of Gal-7 in the progression of asthma is still unclear. In this study, we investigated the expression and role of Gal-7 in the apoptosis of bronchial epithelial cells BEAS-2B upon TGF-β1 stimulation. TGF-β1 significantly induced apoptosis of BEAS-2B cells, as determined by flow cytometry. Western blot results revealed that the mRNA and protein expression of Gal-7 were obviously increased after TGF-β1 stimulation. Small interfering RNA (siRNA)-mediated knockdown of Gal-7 abrogated TGF-β1-evoked cell apoptosis. Simultaneously, increased Bcl-2 expression, decreased Bax expression and the cleavage of poly ADP-ribose polymerase (PARP) and caspase-3 activity were also monitored in TGF-β1-treated cells after Gal-7 siRNA transfection. Gal-7 silence also inhibited TGF-β1-induced c-Jun N-terminal kinase (JNK) phosphorylation in BEAS-2B cells. Furthermore, anisomycin, a specific activator for JNK, reversed the effect of Gal-7 siRNA on cell apoptosis induced by TGF-β1. These results demonstrate that Gal-7 silence attenuates TGF-β1-induced apoptosis in bronchial epithelial cells through the inactivation of JNK pathway. Therefore, Gal-7 may act as a potential target for asthma treatment.
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Chen YS, Chang CW, Tsay YG, Huang LY, Wu YC, Cheng LH, Yang CC, Wu CH, Teo WH, Hung KF, Huang CY, Lee TC, Lo JF. HSP40 co-chaperone protein Tid1 suppresses metastasis of head and neck cancer by inhibiting Galectin-7-TCF3-MMP9 axis signaling. Am J Cancer Res 2018; 8:3841-3855. [PMID: 30083263 PMCID: PMC6071538 DOI: 10.7150/thno.25784] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 05/18/2018] [Indexed: 02/06/2023] Open
Abstract
Human tumorous imaginal disc (Tid1), a DnaJ co-chaperone protein, is classified as a tumor suppressor. Previously, we demonstrated that Tid1 reduces head and neck squamous cell carcinoma (HNSCC) malignancy. However, the molecular details of Tid1-mediated anti-metastasis remain elusive. Methods: We used affinity chromatography and systemic mass spectrometry to identify Tid1-interacting client proteins. Immunohistochemical staining of Tid1 in HNSCC patient tissues was examined to evaluate the association between the expression profile of Tid1-interacting client proteins with pathologic features and prognosis. The roles of Tid1-interacting client proteins in metastasis were validated both in vitro and in vivo. The interacting partner and downstream target of Tid1-interacting client protein were determined. Results: Herein, we first revealed that Galectin-7 was one of the Tid1-interacting client proteins. An inverse association of protein expression profile between Tid1 and Galectin-7 was determined in HNSCC patients. Low Tid1 and high Galectin-7 expression predicted poor overall survival in HNSCC. Furthermore, Tid1 abolished the nuclear translocation of Galectin-7 and suppressed Galectin-7-induced tumorigenesis and metastasis. Keratinocyte-specific Tid1-deficient mice with 4-nitroquinoline-1-oxide (4NQO) treatment exhibited increased protein levels of Galectin-7 and had a poor survival rate. Tid1 interacted with Galectin-7 through its N-linked glycosylation to promote Tid1-mediated ubiquitination and proteasomal degradation of Galectin-7. Additionally, Galectin-7 played a critical role in promoting tumorigenesis and metastatic progression by enhancing the transcriptional activity of TCF3 transcription factor through elevating MMP-9 expression. Conclusions: Overall, future treatments through activating Tid1 expression or inversely repressing the oncogenic function of Galectin-7 may exhibit great potential in targeting HNSCC progression.
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Wang L, Zhao Y, Wang Y, Wu X. The Role of Galectins in Cervical Cancer Biology and Progression. BIOMED RESEARCH INTERNATIONAL 2018; 2018:2175927. [PMID: 29854732 PMCID: PMC5964433 DOI: 10.1155/2018/2175927] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2017] [Revised: 03/18/2018] [Accepted: 03/27/2018] [Indexed: 02/06/2023]
Abstract
Cervical cancer is one of the malignant tumors with high incidence and high mortality among women in developing countries. The main factors affecting the prognosis of cervical cancer are the late recurrence and metastasis and the effective adjuvant treatment, which is radiation and chemotherapy or combination therapy. Galectins, a family containing many carbohydrate binding proteins, are closely involved in the occurrence and development of tumor. They are involved in tumor cells transformation, angiogenesis, metastasis, immune escape, and sensitivity against radiation and chemotherapy. Therefore, galectins are deemed as the targets of multifunctional cancer treatment. In this review, we mainly focus on the role of galectins, especially galectin-1, galectin-3, galectin-7, and galectin-9 in cervical cancer, and provide theoretical basis for potential targeted treatment of cervical cancer.
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Affiliation(s)
- Lufang Wang
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yanyan Zhao
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Yanshi Wang
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
| | - Xin Wu
- Department of Gynecology, The First Affiliated Hospital of China Medical University, Shenyang, Liaoning, China
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Galectin-7 in Epithelial Homeostasis and Carcinomas. Int J Mol Sci 2017; 18:ijms18122760. [PMID: 29257082 PMCID: PMC5751359 DOI: 10.3390/ijms18122760] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Revised: 12/12/2017] [Accepted: 12/14/2017] [Indexed: 01/23/2023] Open
Abstract
Galectins are small unglycosylated soluble lectins distributed both inside and outside the cells. They share a conserved domain for the recognition of carbohydrates (CRD). Although galectins have a common affinity for β-galatosides, they exhibit different binding preferences for complex glycans. First described twenty years ago, galectin-7 is a prototypic galectin, with a single CRD, able to form divalent homodimers. This lectin, which is mainly expressed in stratified epithelia, has been described in epithelial tissues as being involved in apoptotic responses, in proliferation and differentiation but also in cell adhesion and migration. Most members of the galectins family have been associated with cancer biology. One of the main functions of galectins in cancer is their immunomodulating potential and anti-angiogenic activity. Indeed, galectin-1 and -3, are already targeted in clinical trials. Another relevant function of galectins in tumour progression is their ability to regulate cell migration and cell adhesion. Among these galectins, galectin-7 is abnormally expressed in various cancers, most prominently in carcinomas, and is involved in cancer progression and metastasis but its precise functions in tumour biology remain poorly understood. In this issue, we will focus on the physiological functions of galectin-7 in epithelia and present the alterations of galectin-7 expression in carcinomas with the aim to describe its possible functions in tumour progression.
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Advedissian T, Proux-Gillardeaux V, Nkosi R, Peyret G, Nguyen T, Poirier F, Viguier M, Deshayes F. E-cadherin dynamics is regulated by galectin-7 at epithelial cell surface. Sci Rep 2017; 7:17086. [PMID: 29213102 PMCID: PMC5719072 DOI: 10.1038/s41598-017-17332-y] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/15/2017] [Indexed: 02/02/2023] Open
Abstract
Re-epithelialisation of wounded epidermis is ensured by collective cell migration of keratinocytes. Efficient collective migration requires the maintenance of intercellular adhesion, notably through adherens junctions, to favour cell communication, support tension forces and coordinated movement . Galectin-7, a soluble lectin expressed in stratified epithelia, has been previously implicated in cell migration and intercellular adhesion. Here, we revealed a new function of galectin-7 in the control of directionality and collective behaviour in migrating keratinocytes. Consistently, we identified galectin-7 as a direct partner of E-cadherin, a key component of adherens junctions. Unexpectedly, this interaction does not require glycosylation motifs. Focusing on the underlying mechanisms, we showed that galectin-7 stabilizes E-cadherin at the plasma membrane, restraining its endocytosis. Interestingly, galectin-7 silencing decreases E-cadherin-mediated intercellular adhesion. Consequently, this study not only identifies a new stabilizer of adherens junctions but also emphasises the importance of the interplay between E-cadherin turnover and intercellular adhesion strength.
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Affiliation(s)
- Tamara Advedissian
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Véronique Proux-Gillardeaux
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France.,Team Membrane Traffic in Health & Disease, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Rachel Nkosi
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Grégoire Peyret
- Team Cell Adhesion and Mechanics, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Thao Nguyen
- Team Cell Adhesion and Mechanics, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Françoise Poirier
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France
| | - Mireille Viguier
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France.
| | - Frédérique Deshayes
- Team Morphogenesis, Homeostasis and Pathologies, University Paris Diderot, Sorbonne Paris Cité, CNRS UMR 7592, Institut Jacques Monod, 15 Rue Hélène Brion, 75013, Paris, France.
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Intracellular galectin-7 expression in cancer cells results from an autocrine transcriptional mechanism and endocytosis of extracellular galectin-7. PLoS One 2017; 12:e0187194. [PMID: 29117220 PMCID: PMC5678874 DOI: 10.1371/journal.pone.0187194] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 10/16/2017] [Indexed: 11/19/2022] Open
Abstract
The β-galactoside binding protein galectin-7 (gal-7) is constitutively expressed at abnormally high levels in the outside milieu and intracellular compartments of many types of epithelial cancer cells, most notably in aggressive forms of ovarian and breast cancer. It is thus of utmost importance to understand how gal-7 traffics between both intracellular and extracellular compartments to develop novel drugs that target the protumorigenic functions of galectin-7. In the present work, we report that extracellular gal-7 plays a central role in controlling intracellular gal-7 in cells. It does so via two distinct yet complementary mechanisms: firstly by increasing the transcriptional activation of lgals7 gene transcription, and secondly via re-entry into the cells. Increased mRNA levels were dose- and time-dependent and occur in all cell lines tested, including ovarian and breast cancer cell lines. Addition of recombinant gal-7 to MDA-MB-231 transfected with a luciferase reporter vector containing response elements of the lgals7 promoter indicated that increased mRNA level of lgals7 occurs via de novo gene transcription. Re-entry of extracellular gal-7 inside cells was rapid, and reached cytosolic and mitochondrial compartments. Taken together, these findings reveal the existence of a positive self-amplification pathway that regulates intracellular gal-7 expression in breast and ovarian cancer cells.
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Rao US, Rao PS. Surface-bound galectin-4 regulates gene transcription and secretion of chemokines in human colorectal cancer cell lines. Tumour Biol 2017; 39:1010428317691687. [PMID: 28345468 DOI: 10.1177/1010428317691687] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
One long-term complication of chronic intestinal inflammation is the development of colorectal cancer. However, the mechanisms linking inflammation to the colorectal tumorigenesis are poorly defined. Previously, we have demonstrated that galectin-4 is predominantly expressed in the luminal epithelia of the gastrointestinal tract, and its loss of expression plays a key role in the colorectal tumorigenesis. However, the mechanism by which galectin-4 regulates inflammation-induced tumorigenesis is unclear. Here, we show that galectin-4 secreted by the colorectal cancer cell lines was bound to the cell surface. Neutralization of surface-bound galectin-4 with anti-galectin-4 antibody resulted in increased cell proliferation with concomitant secretion of several chemokines into the extracellular medium. Neutralization of the surface-bound galectin-4 also resulted in the up-regulation of transcription of 29 genes, several of which are components of multiple inflammation signaling pathways. In an alternate experiment, binding of recombinant galectin-4 protein to cell surface of the galectin-4-negative colorectal cancer cells resulted in increased p27, and decreased cyclin D1 and c-Myc levels, leading to cell cycle arrest and apoptosis. Together, these data demonstrated that surface-bound galectin-4 is a dual function protein-down-regulating cell proliferation and chemokine secretion in galectin-4-expressing colorectal cancer cells on one hand and inducing apoptosis in galectin-4-negative colorectal cancer cells on the other hand.
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Affiliation(s)
- U Subrahmanyeswara Rao
- Department of Pharmaceutical Sciences, Appalachian College of Pharmacy, Oakwood, VA, USA
| | - Prema S Rao
- Department of Pharmaceutical Sciences, Appalachian College of Pharmacy, Oakwood, VA, USA
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García Caballero G, Flores-Ibarra A, Michalak M, Khasbiullina N, Bovin NV, André S, Manning JC, Vértesy S, Ruiz FM, Kaltner H, Kopitz J, Romero A, Gabius HJ. Galectin-related protein: An integral member of the network of chicken galectins 1. From strong sequence conservation of the gene confined to vertebrates to biochemical characteristics of the chicken protein and its crystal structure. Biochim Biophys Acta Gen Subj 2016; 1860:2285-97. [PMID: 27268118 PMCID: PMC7127388 DOI: 10.1016/j.bbagen.2016.06.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2016] [Revised: 05/11/2016] [Accepted: 06/02/2016] [Indexed: 11/21/2022]
Affiliation(s)
- Gabriel García Caballero
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Andrea Flores-Ibarra
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Malwina Michalak
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Nailya Khasbiullina
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow, Russia
| | - Nicolai V Bovin
- Shemyakin and Ovchinnikov Institute of Bioorganic Chemistry, Russian Academy of Sciences, ul. Miklukho-Maklaya 16/10, Moscow, Russia
| | - Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Joachim C Manning
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Sabine Vértesy
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Federico M Ruiz
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany
| | - Jürgen Kopitz
- Department of Applied Tumor Biology, Institute of Pathology, Medical School of the Ruprecht-Karls-University, Im Neuenheimer Feld 224, 69120 Heidelberg, Germany
| | - Antonio Romero
- Chemical and Physical Biology, Centro de Investigaciones Biológicas, CSIC, Ramiro de Maeztu 9, 28040 Madrid, Spain
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 Munich, Germany.
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Vladoiu MC, Labrie M, Létourneau M, Egesborg P, Gagné D, Billard É, Grosset AA, Doucet N, Chatenet D, St-Pierre Y. Design of a peptidic inhibitor that targets the dimer interface of a prototypic galectin. Oncotarget 2016; 6:40970-80. [PMID: 26543238 PMCID: PMC4747383 DOI: 10.18632/oncotarget.5403] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Accepted: 08/20/2015] [Indexed: 12/30/2022] Open
Abstract
Galectins are small soluble lectins that bind β-galactosides via their carbohydrate recognition domain (CRD). Their ability to dimerize is critical for the crosslinking of glycoprotein receptors and subsequent cellular signaling. This is particularly important in their immunomodulatory role via the induction of T-cell apoptosis. Because galectins play a central role in many pathologies, including cancer, they represent valuable therapeutic targets. At present, most inhibitors have been directed towards the CRD, a challenging task in terms of specificity given the high structural homology of the CRD among galectins. Such inhibitors are not effective at targeting CRD-independent functions of galectins. Here, we report a new class of galectin inhibitors that specifically binds human galectin-7 (hGal-7), disrupts the formation of homodimers, and inhibits the pro-apoptotic activity of hGal-7 on Jurkat T cells. In addition to representing a new means to achieve specificity when targeting galectins, such inhibitors provide a promising alternative to more conventional galectin inhibitors that target the CRD with soluble glycans or other small molecular weight allosteric inhibitors.
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Affiliation(s)
| | - Marilyne Labrie
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Myriam Létourneau
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Philippe Egesborg
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Donald Gagné
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Étienne Billard
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Andrée-Anne Grosset
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Nicolas Doucet
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - David Chatenet
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Université du Québec, Laval, Québec, H7V 1B7 Canada
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Systems-level effects of ectopic galectin-7 reconstitution in cervical cancer and its microenvironment. BMC Cancer 2016; 16:680. [PMID: 27558259 PMCID: PMC4997669 DOI: 10.1186/s12885-016-2700-8] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2016] [Accepted: 08/09/2016] [Indexed: 12/20/2022] Open
Abstract
Background Galectin-7 (Gal-7) is negatively regulated in cervical cancer, and appears to be a link between the apoptotic response triggered by cancer and the anti-tumoral activity of the immune system. Our understanding of how cervical cancer cells and their molecular networks adapt in response to the expression of Gal-7 remains limited. Methods Meta-analysis of Gal-7 expression was conducted in three cervical cancer cohort studies and TCGA. In silico prediction and bisulfite sequencing were performed to inquire epigenetic alterations. To study the effect of Gal-7 on cervical cancer, we ectopically re-expressed it in the HeLa and SiHa cervical cancer cell lines, and analyzed their transcriptome and SILAC-based proteome. We also examined the tumor and microenvironment host cell transcriptomes after xenotransplantation into immunocompromised mice. Differences between samples were assessed with the Kruskall-Wallis, Dunn’s Multiple Comparison and T tests. Kaplan–Meier and log-rank tests were used to determine overall survival. Results Gal-7 was constantly downregulated in our meta-analysis (p < 0.0001). Tumors with combined high Gal-7 and low galectin-1 expression (p = 0.0001) presented significantly better prognoses (p = 0.005). In silico and bisulfite sequencing assays showed de novo methylation in the Gal-7 promoter and first intron. Cells re-expressing Gal-7 showed a high apoptosis ratio (p < 0.05) and their xenografts displayed strong growth retardation (p < 0.001). Multiple gene modules and transcriptional regulators were modulated in response to Gal-7 reconstitution, both in cervical cancer cells and their microenvironments (FDR < 0.05 %). Most of these genes and modules were associated with tissue morphogenesis, metabolism, transport, chemokine activity, and immune response. These functional modules could exert the same effects in vitro and in vivo, even despite different compositions between HeLa and SiHa samples. Conclusions Gal-7 re-expression affects the regulation of molecular networks in cervical cancer that are involved in diverse cancer hallmarks, such as metabolism, growth control, invasion and evasion of apoptosis. The effect of Gal-7 extends to the microenvironment, where networks involved in its configuration and in immune surveillance are particularly affected. Electronic supplementary material The online version of this article (doi:10.1186/s12885-016-2700-8) contains supplementary material, which is available to authorized users.
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Chen HL, Chiang PC, Lo CH, Lo YH, Hsu DK, Chen HY, Liu FT. Galectin-7 Regulates Keratinocyte Proliferation and Differentiation through JNK-miR-203-p63 Signaling. J Invest Dermatol 2016; 136:182-191. [PMID: 26763438 PMCID: PMC4803640 DOI: 10.1038/jid.2015.366] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2015] [Revised: 08/19/2015] [Accepted: 08/22/2015] [Indexed: 02/07/2023]
Abstract
Galectin-7, a member of the β-galactoside-binding protein family, is primarily expressed in stratified epithelial cells, including keratinocytes. There is information in the literature suggesting a role for this protein in regulation of keratinocyte survival and growth, but the underlying mechanism remains relatively unknown. Moreover, its expression pattern in the epidermis suggests that it is also involved in the regulation of keratinocyte differentiation. Here, we demonstrate that galectin-7 knockdown results in reduced differentiation and increased proliferation of keratinocytes. Using microarray and deep-sequencing analyses, we found that galectin-7 positively and negatively regulates microRNA (miR)-203 and miR-146a expression, respectively. We show that galectin-7 regulates keratinocyte differentiation and proliferation through miR-203 but not miR-146a. A knockdown of either galectin-7 or miR-203 in keratinocytes increases expression of p63, an essential transcription factor involved in skin development. Rescue of miR-203 expression in a galectin-7 knockdown model reduces p63 expression to baseline. Increased galectin-7 expression upregulates c-Jun N-terminal kinase (JNK) protein levels, which is required for miR-203 expression. Finally, we establish that galectin-7 can be associated with JNK1 and protect it from ubiquitination and degradation. Thus, our data suggest an intracellular function of galectin-7: regulation of keratinocyte proliferation and differentiation through the JNK1-miR-203-p63 pathway.
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Affiliation(s)
- Hung-Lin Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Po-Cheng Chiang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Chia-Hui Lo
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yuan-Hsin Lo
- Graduate institute of immunology, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Daniel K Hsu
- Department of Dermatology, School of Medicine, University of California-Davis, Sacramento, California, USA
| | - Huan-Yuan Chen
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Fu-Tong Liu
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan; Graduate institute of immunology, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Dermatology, School of Medicine, University of California-Davis, Sacramento, California, USA.
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Lopes MLDDS, Nonaka CFW, Queiroz LMG, de Souza LB, Miguel MCDC, da Silveira ÉJD. Pattern of galectins expression in actinic cheilitis with different risks of malignant transformation. J Oral Pathol Med 2015; 45:621-6. [PMID: 26711374 DOI: 10.1111/jop.12410] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/23/2015] [Indexed: 01/04/2023]
Abstract
BACKGROUND Actinic cheilitis (AC) is a chronic inflammatory lesion that in some situations can turn into squamous cell carcinoma of the lip. The molecular mechanisms involved in this process are not yet completely understood. This study aimed to investigate the expression pattern of galectins in actinic cheilitis according to the histopathological grading. METHODS Immunoexpression of galectin-1, galectin-3, galectin-7, and galectin-9 was semiquantitatively analyzed in 65 cases of actinic cheilitis graded as low risk (n = 40) or high risk (n = 25) of malignant transformation. Association between the location of the galectins in the cellular compartments and histopathological grading was analyzed. RESULTS Galectin-1 was mainly observed in the cell cytoplasm, and was elevated (score 3) in 60% of cases, regardless of the histopathological grade (P > 0.05). Galectin-3 expression was higher in high-risk group than in the low-risk group (P < 0.05), with a predominant expression in the cytoplasm and nucleus of low-risk (67.5%), and only in the cytoplasm of high-risk cases (60%) (P < 0.05). Galectin-7 expression did not show significant differences between low-risk and high-risk groups (P > 0.05). With respect to galectin-9, 89.2% of cases were positive, showing decrease in median of scores as there was an increase in histological grade (P < 0.001), with predominant expression in the nucleus and cytoplasm. CONCLUSIONS This study is the first indication of galectins involvement in the pathogenesis and morphologic progression of actinic cheilitis, particularly galectin-3 and galectin-9.
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Affiliation(s)
| | | | - Lélia Maria Guedes Queiroz
- Postgraduate Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Lélia Batista de Souza
- Postgraduate Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
| | - Márcia Cristina da Costa Miguel
- Postgraduate Program in Oral Pathology, Department of Dentistry, Federal University of Rio Grande do Norte, Natal, RN, Brazil
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Timoshenko AV. Towards molecular mechanisms regulating the expression of galectins in cancer cells under microenvironmental stress conditions. Cell Mol Life Sci 2015; 72:4327-40. [PMID: 26245305 PMCID: PMC11113283 DOI: 10.1007/s00018-015-2008-x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 07/12/2015] [Accepted: 07/30/2015] [Indexed: 02/07/2023]
Abstract
Galectins, a family of soluble β-galactoside-binding proteins, serve as mediators of fundamental biological processes, such as cell growth, differentiation, adhesion, migration, survival, and death. The purpose of this review is to summarize the current knowledge regarding the ways in which the expression of individual galectins differs in normal and transformed human cells exposed to various stimuli mimicking physiological and pathological microenvironmental stress conditions. A conceptual point is being made and grounded that the modulation of galectin expression profiles is a key aspect of cellular stress responses. Moreover, this modulation might be precisely regulated at transcriptional and post-transcriptional levels in the context of non-overlapping transcription factors and miRNAs specific to galectins.
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Affiliation(s)
- Alexander V Timoshenko
- Department of Biology, Western University, 1151 Richmond Street, London, ON, N6A 5B7, Canada.
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36
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Jiang Y, Tian R, Yu S, Zhao YI, Chen Y, Li H, Qiao Y, Wu X. Clinical significance of galectin-7 in vulvar squamous cell carcinoma. Oncol Lett 2015; 10:3826-3831. [PMID: 26788216 PMCID: PMC4665703 DOI: 10.3892/ol.2015.3826] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2014] [Accepted: 08/20/2015] [Indexed: 11/17/2022] Open
Abstract
The present study reports the role of galectin-7 (Gal-7) expression in vulvar squamous cell carcinoma (VSCC) and its correlation with clinicopathological variables. Gal-7 expression was immunohistochemically detected in the paraffin-embedded sections of 20 normal vulvar biopsy samples and 50 VSCC specimens. Expression was also detected in 10 normal vulvar biopsy samples and 10 VSCC specimens by western blotting. In addition, the methylation status of the promoter of the Gal-7 gene was determined in 30 VSCC specimens and 20 samples of normal vulvar tissue by methylation-specific polymerase chain reaction. Gal-7 expression was found to be significantly downregulated in the VSCC tissues compared with the normal vulvar tissues (P<0.05). Downregulation of Gal-7 was correlated with advanced clinical stage, poor tumor differentiation and regional lymph node metastasis (P<0.05). Furthermore, methylation of the Gal-7 gene promoter was significantly reduced in the vulvar normal tissues compared with the VSCC tissues (P=0.023), while increased Gal-7 promoter methylation was correlated with advanced clinical stage, poor tumor differentiation and regional lymph node metastasis (P<0.05). There was no association between patient age and Gal-7 promoter methylation. Together, these results suggested that Gal-7 has a negative impact in patients with VSCC, with malignant potential correlating with Gal-7 promoter methylation.
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Affiliation(s)
- Ying Jiang
- Department of Obstetrics and Gynecology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ruoyang Tian
- Department of Obstetrics and Gynecology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Shuang Yu
- Central Laboratory, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Y I Zhao
- Department of Obstetrics and Gynecology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Yang Chen
- Central Laboratory, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Hui Li
- Department of Obstetrics and Gynecology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Ying Qiao
- Central Laboratory, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
| | - Xin Wu
- Department of Obstetrics and Gynecology, First Affiliated Hospital of China Medical University, Shenyang, Liaoning 110001, P.R. China
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Labrie M, Vladoiu M, Leclerc BG, Grosset AA, Gaboury L, Stagg J, St-Pierre Y. A Mutation in the Carbohydrate Recognition Domain Drives a Phenotypic Switch in the Role of Galectin-7 in Prostate Cancer. PLoS One 2015; 10:e0131307. [PMID: 26168167 PMCID: PMC4500561 DOI: 10.1371/journal.pone.0131307] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Accepted: 06/01/2015] [Indexed: 11/19/2022] Open
Abstract
The observation that galectin-7 (gal-7) is specifically expressed in mammary myoepithelial (basal) cells prompted us to investigate whether this protein is expressed in the basal cells of other tissues. Given that breast and prostate cancer have remarkable underlying biological similarities and given the important roles of basal cells in prostate cancer, we examined the expression patterns and role of gal-7 in human prostate cancer. Using tissue microarray, we found that although gal-7 is readily expressed in basal cells in normal prostate tissue, it is downregulated in prostate cancer (PCa) cells. De novo expression of gal-7 in prostate cancer cells increases their sensitivity to apoptosis in response to etoposide and cisplatin. The assessment of a carbohydrate-recognition domain (CRD)-defective mutant form of gal-7 (R7S) showed that the ability of this protein to modulate apoptosis was independent of its CRD activity. This activity was also independent of its ability to translocate to the mitochondrial and nuclear compartments. However, CRD activity was necessary to inhibit the invasive behaviors of prostate cancer cells. In vivo, gal-7 overexpression in PCa cells led to a modest yet significant reduction in tumor size, while its CRD-defective mutant form significantly increased tumor growth compared to controls. Taken together, these results suggest that although de novo expression of gal-7 may be an interesting means of increasing the tumorigenic phenotypes of PCa cells, alterations in the CRD activity of this protein drive a phenotypic switch in its role in PCa cells. This CRD-independent activity represents a paradigm shift in our understanding of the functions of galectin. The R74S model will be useful to distinguish CRD-dependent and CRD-independent functions of gal-7 in cancer progression.
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Affiliation(s)
| | - Maria Vladoiu
- INRS-Institut Armand-Frappier, Laval, Québec, Canada
| | - Bruno G. Leclerc
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Andrée-Anne Grosset
- INRS-Institut Armand-Frappier, Laval, Québec, Canada
- Institut de Recherche en Immunologie et Cancérologie, Montréal, Québec, Canada
| | - Louis Gaboury
- Institut de Recherche en Immunologie et Cancérologie, Montréal, Québec, Canada
| | - John Stagg
- Centre de Recherche du Centre Hospitalier de l'Université de Montréal (CRCHUM), Montréal, Québec, Canada
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Laval, Québec, Canada
- * E-mail:
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Advedissian T, Deshayes F, Poirier F, Grandjean C, Viguier M. [Galectins, a class of unconventional lectins]. Med Sci (Paris) 2015; 31:499-505. [PMID: 26059300 DOI: 10.1051/medsci/20153105011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
Galectins constitute a family of soluble animal lectins defined by their evolutionary conserved carbohydrate recognition domain and their affinity for β-galactosides containing glycoconjugates. Each galectin is characterized by a specific spatio-temporal distribution and a unique set of ligands and molecular partners. Interestingly, galectins are found both extracellularly and intracellularly and modulate various cellular processes. Knock-out mutant mice for galectins-1, 3 or 7 are viable but display a wide range of defects under various stress conditions. Indeed, galectins are multifunctional proteins involved in cell-cell and cell-extracellular matrix interactions, organization of membrane domains, cell signalling and also in intracellular trafficking, apoptosis, regulation of cell cycle. Galectins represent potential therapeutic targets, especially in the context of cancer and inflammatory diseases.
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Affiliation(s)
- Tamara Advedissian
- Institut Jacques Monod, UMR 7592 CNRS, université Paris-Diderot, équipe morphogenèse, homéostasie et pathologies, 15, rue Hélène Brion, 75205 Paris Cedex 13, France
| | - Frédérique Deshayes
- Institut Jacques Monod, UMR 7592 CNRS, université Paris-Diderot, équipe morphogenèse, homéostasie et pathologies, 15, rue Hélène Brion, 75205 Paris Cedex 13, France
| | - Françoise Poirier
- Institut Jacques Monod, UMR 7592 CNRS, université Paris-Diderot, équipe morphogenèse, homéostasie et pathologies, 15, rue Hélène Brion, 75205 Paris Cedex 13, France
| | - Cyrille Grandjean
- Équipe ingénierie moléculaire et glycobiologie, UMR CNRS 6286, unité fonctionnalité et ingénierie des protéines, faculté des sciences et techniques de Nantes, 2, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Mireille Viguier
- Institut Jacques Monod, UMR 7592 CNRS, université Paris-Diderot, équipe morphogenèse, homéostasie et pathologies, 15, rue Hélène Brion, 75205 Paris Cedex 13, France
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Grosset AA, Labrie M, Gagné D, Vladoiu MC, Gaboury L, Doucet N, St-Pierre Y. Cytosolic galectin-7 impairs p53 functions and induces chemoresistance in breast cancer cells. BMC Cancer 2014; 14:801. [PMID: 25367122 PMCID: PMC4228062 DOI: 10.1186/1471-2407-14-801] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2014] [Accepted: 10/09/2014] [Indexed: 12/26/2022] Open
Abstract
Background Resistance to apoptosis induced by anti-cancer drugs is a major obstacle for the treatment of aggressive forms of breast cancer. Galectin-7 (gal-7) was recently shown to be specifically expressed in basal-like but not in luminal subtypes of human breast cancer. Methods We generated a mutant form of gal-7 (R74S). Arginine 74 is the structural equivalent of arginine 186 found in human galectin-3. Mutation R186S was previously shown to abolish the biological function of galectin-3. Results Mutation of arginine 74 induced only limited and local changes to the gal-7 fold. Recombinant forms of R74S and wtgal-7 were also equally effective at forming dimers in solution. Analysis of the thermodynamic parameters by isothermal titration calorimetry (ITC) indicated, however, that binding of lactose to gal-7 was inhibited by the R74S mutation. Using confocal microscopy and electron microscopy, we confirmed the expression of gal-7 in the cytosolic and nuclear compartments of breast cancer cells and the ability of gal-7 to translocate to mitochondria. The mutation at position 74, however, greatly reduced the expression of gal-7 in the nuclear and mitochondrial compartments. Interestingly, cells expressing mutated gal-7 were equally if not even more resistant to drug-induced apoptosis when compared to cells expressing wtgal-7. We also found that both wtgal-7 and R74S inhibited dox-induced PARP-1 cleavage and p53 protein expression. The inhibition of p53 correlated with a decrease in p21 protein expression and CDKN1A mRNA. Furthermore, analysis of nuclear and cytoplasmic fractions showed that both wild type and R74S mutant gal-7 inhibited p53 nuclear translocation, possibly by increasing degradation of cytosolic p53. Conclusions These findings pose a challenge to the paradigm that has guided the design of galectin-specific inhibitors for the treatment of cancer. This study suggests that targeting CRD-independent cytosolic gal-7 in breast cancer cells may be a valuable strategy for the treatment of this disease. Our study will thus complement efforts towards improving selectivity of targeted anticancer agents. Electronic supplementary material The online version of this article (doi:10.1186/1471-2407-14-801) contains supplementary material, which is available to authorized users.
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Affiliation(s)
| | | | | | | | | | | | - Yves St-Pierre
- INRS-Institut Armand-Frappier, 531 Blv, des Prairies, Laval, Quebec H7V 1B7, Canada.
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Kim SJ, Hwang JA, Ro JY, Lee YS, Chun KH. Galectin-7 is epigenetically-regulated tumor suppressor in gastric cancer. Oncotarget 2014; 4:1461-71. [PMID: 23985992 PMCID: PMC3824540 DOI: 10.18632/oncotarget.1219] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Gastric cancer is the second leading cause of cancer death and remains a major clinical challenge due to poor prognosis and limited treatment options. Therefore, the basic mechanisms underlying gastric tumorigenesis deserve investigation. Although regulation of the galactoside-binding lectin galectin-7 in cancer has been studied, its role in tumor formation and progression remains controversial. In this study, we investigated galectin-7 expression and its role in gastric cancer. Immunohistochemical staining using a tissue microarray of gastric cancer patients revealed significantly low expression levels of galectin-7 in malignant tissues compared with matched normal tissues, and decreased expression of galectin-7 in malignant tissues was associated with advanced TMN stage disease (p =0.034). Importantly, low expression of galectin-7 in normal tissues was associated with a poor survival rate (p =0.0561). Over-expression of galectin-7 in AGS gastric adenocarcinoma cells suppressed cell proliferation, migration, and invasion, whereas ablation of galectin-7 in KATO III gastric carcinoma cells reversed these properties. AGS cells that overexpressed galectin-7 could not form gastric tumors in xenografted mice. More than 70% hypermethylation was observed in 7 of 9 gastric cancer cell lines tested and 5-aza-cytidine treatment lowered galectin-7 expression by reducing methylation in 24 cancer cell lines from five different organ origins. We analyzed CpG islands in the galectin-7 genomic region and detected hypermethylation at +1566bp of exon 2, the predicted p53 binding region. DNA hypermethylation of this region was also detected in gastric cancer tissues from 20 patients. Taken together, our data indicate that galectin-7 has a tumor suppressive function, and that the gene is epigenetically modified by DNA methylation and significantly down-regulated in gastric cancer. Further study of galectin-7 regulation may lead to improved gastric cancer diagnosis and therapy.
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Affiliation(s)
- Seok-Jun Kim
- Department of Biochemistry and Molecular Biology, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, Republic of Korea
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Abstract
Galectins are a family of β-galactoside-binding lectins that exert diverse extracellular and intracellular effects. Galectin-7 and galectin-1 show opposing effects on proliferation and survival in different cell types. Galectin-7 is a p53-induced gene and an enhancer of apoptosis, whereas galectin-1 induces tumorigenicity and resistance to apoptosis in several types of cancers. We show here that in cells derived from neurofibromin-deficient (Nf1−/−) malignant peripheral nerve sheath tumors (MPNSTs), Ras inhibition by S-trans,trans-farnesylthiosalicylic-acid (FTS; Salirasib) shifts the pattern of galectin expression. Whereas FTS decreased levels of both active Ras and galectin-1 expression, it dramatically increased both the mRNA and protein expression levels of galectin-7. Galectin-7 accumulation was mediated through JNK inhibition presumably resulting from the observed induction of p53, and was negatively regulated by the AP-1 inhibitor JDP2. Expression of galectin-7 by itself decreased Ras activation in ST88-14 cells and rendered them sensitive to apoptosis. This observed shift in galectin expression pattern together with the accompanying shift from cell proliferation to apoptosis represents a novel pattern of Ras inhibition by FTS. This seems likely to be an important phenomenon in view of the fact that both enhanced cell proliferation and defects of apoptosis constitute major hallmarks of human cancers and play a central role in the resistance of MPNSTs to anti-cancer treatments. These findings suggest that FTS, alone or in combination with chemotherapy agents, may be worth developing as a possible treatment for MPNSTs.
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Vladoiu MC, Labrie M, St-Pierre Y. Intracellular galectins in cancer cells: potential new targets for therapy (Review). Int J Oncol 2014; 44:1001-14. [PMID: 24452506 DOI: 10.3892/ijo.2014.2267] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2013] [Accepted: 12/02/2013] [Indexed: 11/06/2022] Open
Abstract
Dysregulation of galectin expression is frequently observed in cancer tissues. Such an abnormal expression pattern often correlates with aggressiveness and relapse in many types of cancer. Because galectins have the ability to modulate functions that are important for cell survival, migration and metastasis, they also represent attractive targets for cancer therapy. This has been well-exploited for extracellular galectins, which bind glycoconjugates expressed on the surface of cancer cells. Although the existence of intracellular functions of galectins has been known for many years, an increasing number of studies indicate that these proteins can also alter tumor progression through their interaction with intracellular ligands. In fact, in some instances, the interactions of galectins with their intracellular ligands seem to occur independently of their carbohydrate recognition domain. Such findings call for a change in the basic assumptions, or paradigms, concerning the activity of galectins in cancer and may force us to revisit our strategies to develop galectin antagonists for the treatment of cancer.
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Affiliation(s)
| | | | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Laval, QC H7V 1B7, Canada
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Kübler D, Seidler J, André S, Kumar S, Schwartz-Albiez R, Lehmann WD, Gabius HJ. Phosphorylation of multifunctional galectins by protein kinases CK1, CK2, and PKA. Anal Biochem 2013; 449:109-17. [PMID: 24333252 DOI: 10.1016/j.ab.2013.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2013] [Revised: 11/21/2013] [Accepted: 12/03/2013] [Indexed: 02/07/2023]
Abstract
Phosphorylation is known to have a strong impact on protein functions. We analyzed members of the lectin family of multifunctional galectins as targets of the protein kinases CK1, CK2, and PKA. Galectins are potent growth regulators able to bind both glycan and peptide motifs at intra- and extracellular sites. Performing in vitro kinase assays, galectin phosphorylation was detected by phosphoprotein staining and autoradiography. The insertion of phosphoryl groups varied to a large extent depending on the type of kinase applied and the respective galectin substrate. Sites of phosphorylation observed in the recombinant galectins were determined by a strategic combination of phosphopeptide enrichment and nano-ultra-performance liquid chromatography tandem mass spectrometry (nanoUPLC-MS/MS). By in silico modeling, phosphorylation sites were visualized three-dimensionally. Our results reveal galectin-type-specific Ser-/Thr-dependent phosphorylation beyond the known example of galectin-3. These data are the basis for functional studies and also illustrate the analytical sensitivity of the applied methods for further work on human lectins.
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Affiliation(s)
- Dieter Kübler
- Biomolecular Interactions, German Cancer Research Center, 69120 Heidelberg, Germany.
| | | | - Sabine André
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig Maximilians University Munich, 80539 Munich, Germany
| | - Sonu Kumar
- Sanford-Burnham Medical Research Institute, La Jolla, CA 92037, USA
| | | | - Wolf-Dieter Lehmann
- Core Facility Molecular Structural Analysis, German Cancer Research Center, 69120 Heidelberg, Germany
| | - Hans-Joachim Gabius
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig Maximilians University Munich, 80539 Munich, Germany
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Expression of galectin-7 is induced in breast cancer cells by mutant p53. PLoS One 2013; 8:e72468. [PMID: 23967302 PMCID: PMC3743813 DOI: 10.1371/journal.pone.0072468] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2013] [Accepted: 07/17/2013] [Indexed: 12/16/2022] Open
Abstract
Galectin-7 was initially described as a marker of epithelial differentiation expressed in the stratified epithelium of various tissues. Like other members of the galectin family, its expression level is often significantly altered in cancer cells. In breast cancer, its expression is significantly augmented in aggressive molecular subtypes, most notably in estrogen receptor-negative tumors and in cell lines with a basal-like phenotype. Studies using experimental mouse models have further shown high expression of galectin-7 was sufficient to increase the metastatic behavior of poorly metastatic breast cancer cells, rendering them more resistant to apoptosis. This expression pattern in breast cancer cells is unexpected because galectin-7 was originally identified as a p53-induced gene. To address this paradox, we have examined the molecular mechanisms regulating galectin-7 in breast cancer cells. Our results showed that transfection of breast cancer cells with expression vectors encoding mutant p53 was sufficient to induce galectin-7 at both mRNA and protein levels. Doxorubicin treatment of breast cancer cells harboring a mutant p53 also induced galectin-7. This induction was specific since knockdown of endogenous mutant p53 inhibited doxorubicin-induced galectin-7 expression. The p53-induced galectin-7 expression in breast cancer cells correlated with increased NF-κB activity and was inhibited by NF-κB inhibitors, indicating that the ability of mutant p53 to induce galectin-7 was dependent on NF-κB activity. The implication of NF-κB was further supported by data showing that NF-κB bound to the endogenous galectin-7 promoter and that TNFα-induced galectin-7 expression was abolished by NF-κB inhibitors. Taken together, our data provide an explanation to the observed high galectin-7 expression levels in cancer cells and suggest that galectin-7 could be part of a common pathway used by mutant p53 to promote cancer progression.
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Kaltner H, Raschta AS, Manning JC, Gabius HJ. Copy-number variation of functional galectin genes: studying animal galectin-7 (p53-induced gene 1 in man) and tandem-repeat-type galectins-4 and -9. Glycobiology 2013; 23:1152-63. [PMID: 23840039 DOI: 10.1093/glycob/cwt052] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
Galectins are potent adhesion/growth-regulatory effectors with characteristic expression profiles. Understanding the molecular basis of gene regulation in each case requires detailed information on copy number of genes and sequence(s) of their promoter(s). Our report reveals plasticity in this respect between galectins and species. We here describe occurrence of a two-gene constellation for human galectin (Gal)-7 and define current extent of promoter-sequence divergence. Interestingly, cross-species genome analyses also detected single-copy display. Because the regulatory potential will then be different, extrapolations of expression profiles are precluded between respective species pairs. Gal-4 coding in chromosomal vicinity was found to be confined to one gene, whereas copy-number variation also applied to Gal-9. The example of rat Gal-9 teaches the lesson that the presence of multiple bands in Southern blotting despite a single-copy gene constellation is attributable to two pseudogenes. The documented copy-number variability should thus be taken into consideration when studying regulation of galectin genes, in a species and in comparison between species.
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Affiliation(s)
- Herbert Kaltner
- Institute of Physiological Chemistry, Faculty of Veterinary Medicine, Ludwig-Maximilians-University Munich, Veterinärstr. 13, 80539 München, Germany
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Lichtenstein RG, Rabinovich GA. Glycobiology of cell death: when glycans and lectins govern cell fate. Cell Death Differ 2013; 20:976-86. [PMID: 23703323 DOI: 10.1038/cdd.2013.50] [Citation(s) in RCA: 66] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Revised: 04/08/2013] [Accepted: 04/16/2013] [Indexed: 02/04/2023] Open
Abstract
Although one typically thinks of carbohydrates as associated with cell growth and viability, glycosylation also has an integral role in many processes leading to cell death. Glycans, either alone or complexed with glycan-binding proteins, can deliver intracellular signals or control extracellular processes that promote initiation, execution and resolution of cell death programs. Herein, we review the role of glycans and glycan-binding proteins as essential components of the cell death machinery during physiologic and pathologic settings.
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Affiliation(s)
- R G Lichtenstein
- Avram and Stella Goren-Goldstein, Department of Biotechnology Engineering, Faculty of Engineering, Ben-Gurion University of the Negev, Beer-Sheva 84105, Israel
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Biron-Pain K, Grosset AA, Poirier F, Gaboury L, St-Pierre Y. Expression and functions of galectin-7 in human and murine melanomas. PLoS One 2013; 8:e63307. [PMID: 23658821 PMCID: PMC3643947 DOI: 10.1371/journal.pone.0063307] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2012] [Accepted: 03/28/2013] [Indexed: 11/19/2022] Open
Abstract
The identification of galectin-7 as a p53-induced gene and its ability to induce apoptosis in many cell types support the hypothesis that galectin-7 has strong antitumor activity. This has been well documented in colon cancer. However, in some cases, such as breast cancer and lymphoma, its high expression level correlates with aggressive subtypes of cancer, suggesting that galectin-7 may have a dual role in cancer progression. In fact, in breast cancer, overexpression of galectin-7 alone is sufficient to promote metastasis to the bone and lung. In the present work, we investigated the expression and function of galectin-7 in melanoma. An analysis of datasets obtained from whole-genome profiling of human melanoma tissues revealed that galectin-7 mRNA was detected in more than 90% of biopsies of patients with nevi while its expression was more rarely found in biopsies collected from patients with malignant melanoma. This frequency, however, was likely due to the presence of normal epidermis tissues in biopsies, as shown our studies at the protein level by immunohistochemical analysis. Using the experimental melanoma B16F1 cell line, we found that melanoma cells can express galectin-7 at the primary tumor site and in lung metastasis. Moreover, we found that overexpression of galectin-7 increased the resistance of melanoma cells to apoptosis while inducing de novo egr-1 expression. Overexpression of galectin-7, however, was insufficient to modulate the growth of tumors induced by the subcutaneous injection of B16F1 cells. It also failed to modulate the dissemination of B16F1 cells to the lung.
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Affiliation(s)
| | | | - Françoise Poirier
- Institut Jacques Monod, CNRS, UMR 7592, Univ Paris Diderot, Sorbonne Paris Cité, Paris, France
| | - Louis Gaboury
- Institut de Recherche en Immunologie et Cancérologie, Montreal, Québec, Canada
| | - Yves St-Pierre
- INRS-Institut Armand-Frappier, Laval, Québec, Canada
- * E-mail:
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48
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Ermakova E, Miller MC, Nesmelova IV, López-Merino L, Berbís MA, Nesmelov Y, Tkachev YV, Lagartera L, Daragan VA, André S, Cañada FJ, Jiménez-Barbero J, Solís D, Gabius HJ, Mayo KH. Lactose binding to human galectin-7 (p53-induced gene 1) induces long-range effects through the protein resulting in increased dimer stability and evidence for positive cooperativity. Glycobiology 2013; 23:508-23. [PMID: 23376190 DOI: 10.1093/glycob/cwt005] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
The product of p53-induced gene 1 is a member of the galectin family, i.e., galectin-7 (Gal-7). To move beyond structural data by X-ray diffraction, we initiated the study of the lectin by nuclear magnetic resonance (NMR) and circular dichroism spectroscopies, and molecular dynamics (MD) simulations. In concert, our results indicate that lactose binding to human Gal-7 induces long-range effects (minor conformational shifts and changes in structural dynamics) throughout the protein that result in stabilization of the dimer state, with evidence for positive cooperativity. Monte Carlo fits of (15)N-Gal-7 HSQC titrations with lactose using a two-site model yield K1 = 0.9 ± 0.6 × 10(3) M(-1) and K2 = 3.4 ± 0.8 × 10(3) M(-1). Ligand binding-induced stabilization of the Gal-7 dimer was supported by several lines of evidence: MD-based calculations of interaction energies between ligand-loaded and ligand-free states, gel filtration data and hetero-FRET spectroscopy that indicate a highly reduced tendency for dimer dissociation in the presence of lactose, CD-based thermal denaturation showing that the transition temperature of the lectin is significantly increased in the presence of lactose, and saturation transfer difference (STD) NMR using a molecular probe of the monomer state whose presence is diminished in the presence of lactose. MD simulations with the half-loaded ligand-bound state also provided insight into how allosteric signaling may occur. Overall, our results reveal long-range effects on Gal-7 structure and dynamics, which factor into entropic contributions to ligand binding and allow further comparisons with other members of the galectin family.
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Affiliation(s)
- Elena Ermakova
- Department of Biochemistry, Molecular Biology and Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church Street, Minneapolis, MN 55455, USA
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Nesmelova IV, Berbís MÁ, Miller MC, Cañada FJ, André S, Jiménez-Barbero J, Gabius HJ, Mayo KH. 1H, 13C, and 15N backbone and side-chain chemical shift assignments for the 31 kDa human galectin-7 (p53-induced gene 1) homodimer, a pro-apoptotic lectin. BIOMOLECULAR NMR ASSIGNMENTS 2012; 6:127-129. [PMID: 21898049 DOI: 10.1007/s12104-011-9339-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2011] [Accepted: 08/25/2011] [Indexed: 05/31/2023]
Abstract
Galectins are multifunctional proteins with carbohydrate/protein-binding properties and distinct expression profiles. Homodimeric galectin-7 (p53-induced gene 1) is a potent pro-apoptotic effector with clinical relevance. Here, we report (1)H, (13)C, and (15)N chemical shift assignments for human galectin-7 dimer as determined by using heteronuclear, triple resonance NMR spectroscopy.
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Affiliation(s)
- Irina V Nesmelova
- Department of Biochemistry, Molecular Biology & Biophysics, University of Minnesota, 6-155 Jackson Hall, 321 Church St., Minneapolis, MN 55455, USA
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