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Silva-Bermudez LS, Klüter H, Kzhyshkowska JG. Macrophages as a Source and Target of GDF-15. Int J Mol Sci 2024; 25:7313. [PMID: 39000420 PMCID: PMC11242731 DOI: 10.3390/ijms25137313] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2024] [Revised: 06/21/2024] [Accepted: 06/23/2024] [Indexed: 07/16/2024] Open
Abstract
Growth differentiation factor 15 (GDF-15) is a multifunctional cytokine that belongs to the transforming growth factor-beta (TGF-β) superfamily. GDF-15 is involved in immune tolerance and is elevated in several acute and chronic stress conditions, often correlating with disease severity and patient prognosis in cancer172 and metabolic and cardiovascular disorders. Despite these clinical associations, the molecular mechanisms orchestrating its effects remain to be elucidated. The effects of GDF-15 are pleiotropic but cell-specific and dependent on the microenvironment. While GDF-15 expression can be stimulated by inflammatory mediators, its predominant effects were reported as anti-inflammatory and pro-fibrotic. The role of GDF-15 in the macrophage system has been increasingly investigated in recent years. Macrophages produce high levels of GDF-15 during oxidative and lysosomal stress, which can lead to fibrogenesis and angiogenesis at the tissue level. At the same time, macrophages can respond to GDF-15 by switching their phenotype to a tolerogenic one. Several GDF-15-based therapies are under development, including GDF-15 analogs/mimetics and GDF-15-targeting monoclonal antibodies. In this review, we summarize the major physiological and pathological contexts in which GDF-15 interacts with macrophages. We also discuss the major challenges and future perspectives in the therapeutic translation of GDF-15.
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Affiliation(s)
- Lina Susana Silva-Bermudez
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (L.S.S.-B.); (H.K.)
- German Red Cross Blood Service Baden-Württemberg-Hessen, 68167 Mannheim, Germany
| | - Harald Klüter
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (L.S.S.-B.); (H.K.)
- German Red Cross Blood Service Baden-Württemberg-Hessen, 68167 Mannheim, Germany
| | - Julia G. Kzhyshkowska
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, 68167 Mannheim, Germany; (L.S.S.-B.); (H.K.)
- German Red Cross Blood Service Baden-Württemberg-Hessen, 68167 Mannheim, Germany
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2
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Wohlfeil SA, Olsavszky A, Irkens AL, Häfele V, Dietsch B, Straub N, Goerdt S, Géraud C. Deficiency of Stabilin-1 in the Context of Hepatic Melanoma Metastasis. Cancers (Basel) 2024; 16:441. [PMID: 38275881 PMCID: PMC10814973 DOI: 10.3390/cancers16020441] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Revised: 01/10/2024] [Accepted: 01/17/2024] [Indexed: 01/27/2024] Open
Abstract
BACKGROUND This study analyzed the role of Stabilin-1 on hepatic melanoma metastasis in preclinical mouse models. METHODS In Stabilin-1-/- mice (Stab1 KO), liver colonization of B16F10 luc2 and Wt31 melanoma was investigated. The numbers, morphology, and vascularization of hepatic metastases and the hepatic microenvironment were analyzed by immunofluorescence. RESULTS While hepatic metastasis of B16F10 luc2 or Wt31 melanoma was unaltered between Stab1 KO and wildtype (Ctrl) mice, metastases of B16F10 luc2 tended to be smaller in Stab1 KO. The endothelial differentiation of both types of liver metastases was similar in Stab1 KO and Ctrl. No differences in initial tumor cell adhesion and retention to the liver vasculature were detected in the B16F10 luc2 model. Analysis of the immune microenvironment revealed a trend towards higher levels of CD45+Gr-1+ cells in Stab1 KO as compared to Ctrl in the B16F10 luc2 model. Interestingly, significantly higher levels of POSTN were found in the matrix of hepatic metastases of Wt31, while liver metastases of B16F10 luc2 showed a trend towards increased deposition of RELN. CONCLUSIONS Hepatic melanoma metastases show resistance to Stabilin-1 targeting approaches. This suggests that anti-Stab1 therapies should be considered with respect to the tumor entity or target organs.
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Affiliation(s)
- Sebastian A. Wohlfeil
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
- Skin Cancer Unit, German Cancer Research Center (DKFZ), 69120 Heidelberg, Germany
| | - Ana Olsavszky
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Anna Lena Irkens
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Verena Häfele
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Bianca Dietsch
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Niklas Straub
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Sergij Goerdt
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
| | - Cyrill Géraud
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, 68135 Mannheim, Germany (A.L.I.); (V.H.); (B.D.); (N.S.); (S.G.); (C.G.)
- Section of Clinical and Molecular Dermatology, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
- European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, 68135 Mannheim, Germany
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Kazakova E, Iamshchikov P, Larionova I, Kzhyshkowska J. Macrophage scavenger receptors: Tumor support and tumor inhibition. Front Oncol 2023; 12:1096897. [PMID: 36686729 PMCID: PMC9853406 DOI: 10.3389/fonc.2022.1096897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2022] [Accepted: 12/13/2022] [Indexed: 01/08/2023] Open
Abstract
Tumor-associated macrophages (TAMs) are a heterogeneous population of myeloid cells that constitute up to 50% of the cell mass of human tumors. TAMs interact with the components of the tumor microenvironment (TME) by using scavenger receptors (SRs), a large superfamily of multifunctional receptors that recognize, internalize and transport to the endosomal/lysosomal pathway apoptotic cells, cytokines, matrix molecules, lipid modified lipoproteins and other unwanted-self ligands. In our review, we summarized state-of-the art for the role of macrophage scavenger receptors in tumor development and their significance as cancer biomarkers. In this review we focused on functional activity of TAM-expressing SRs in animal models and in patients, and summarized the data for different human cancer types about the prognostic significance of TAM-expressed SRs. We discussed the role of SRs in the regulation of cancer cell biology, cell-cell and cell-matrix interaction in TME, immune status in TME, angiogenesis, and intratumoral metabolism. Targeting of tumor-promoting SRs can be a promising therapeutic approach in anti-cancer therapy. In our review we provide evidence for both tumor supporting and tumor inhibiting functions of scavenger receptors expressed on TAMs. We focused on the key differences in the prognostic and functional roles of SRs that are specific for cancer types. We highlighted perspectives for inhibition of tumor-promoting SRs in anti-cancer therapy.
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Affiliation(s)
- Elena Kazakova
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia,Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Pavel Iamshchikov
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia,Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Irina Larionova
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia,Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia,Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia
| | - Julia Kzhyshkowska
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia,Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia,Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany,German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany,*Correspondence: Julia Kzhyshkowska,
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Larionova I, Kiselev A, Kazakova E, Liu T, Patysheva M, Iamshchikov P, Liu Q, Mossel DM, Riabov V, Rakina M, Sergushichev A, Bezgodova N, Vtorushin S, Litviakov N, Denisov E, Koshkin P, Pyankov D, Tsyganov M, Ibragimova M, Cherdyntseva N, Kzhyshkowska J. Tumor-associated macrophages respond to chemotherapy by detrimental transcriptional reprogramming and suppressing stabilin-1 mediated clearance of EGF. Front Immunol 2023; 14:1000497. [PMID: 36960065 PMCID: PMC10028613 DOI: 10.3389/fimmu.2023.1000497] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Accepted: 01/30/2023] [Indexed: 03/09/2023] Open
Abstract
Introduction Tumor resistance to chemotherapy and metastatic relapse account for more than 90% of cancer specific mortality. Tumor-associated macrophages (TAMs) can process chemotherapeutic agents and impair their action. Little is known about the direct effects of chemotherapy on TAMs. Methods The effect of chemotherapeutic platinum agent cisplatin was assessed in the model system of human ex vivo TAMs. Whole-transcriptome sequencing for paired TAMs stimulated and not stimulated by cisplatin was analysed by NGS. Endocytic uptake of EGF was quantified by flow cytometry. Confocal microscopy was used to visualize stabilin-1-mediated internalization and endocytic trafficking of EGF in CHO cells expressing ectopically recombinant stabilin-1 and in stabilin-1+ TAMs. In cohort of patients with breast cancer, the effect of platinum therapy on the transcriptome of TAMs was validated, and differential expression of regulators of endocytosis was identified. Results Here we show that chemotherapeutic agent cisplatin can initiate detrimental transcriptional and functional programs in TAMs, without significant impairment of their viability. We focused on the clearance function of TAMs that controls composition of tumor microenvironment. For the first time we demonstrated that TAMs' scavenger receptor stabilin-1 is responsible for the clearance of epidermal growth factor (EGF), a potent stimulator of tumor growth. Cisplatin suppressed both overall and EGF-specific endocytosis in TAMs by bidirectional mode: suppression of positive regulators and stimulation of negative regulators of endocytosis, with strongest effect on synaptotagmin-11 (SYT11), confirmed in patients with breast cancer. Conclusion Our data demonstrate that synergistic action of cytostatic agents and innovative immunomodulators is required to overcome cancer therapy resistance.
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Affiliation(s)
- Irina Larionova
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia
| | - Artem Kiselev
- Institute for Quantitative Health Science and Engineering (IQ), Michigan State University, East Lansing, MI, United States
| | - Elena Kazakova
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Tengfei Liu
- Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Marina Patysheva
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Pavel Iamshchikov
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Quan Liu
- Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Dieuwertje M. Mossel
- Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Vladimir Riabov
- Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Militsa Rakina
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Alexey Sergushichev
- Saint Petersburg National Research University of Information Technologies, Mechanics and Optics (ITMO University), Saint Petersburg, Russia
| | - Natalia Bezgodova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Sergei Vtorushin
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Nikolai Litviakov
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia
| | - Evgeny Denisov
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | | | - Denis Pyankov
- Laboratory of Molecular Pathology, Genomed, Moscow, Russia
| | - Matvei Tsyganov
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Marina Ibragimova
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
| | - Nadezhda Cherdyntseva
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia
- Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia
| | - Julia Kzhyshkowska
- Laboratory of translational cellular and molecular biomedicine, National Research Tomsk State University, Tomsk, Russia
- Laboratory of Genetic Technologies, Siberian State Medical University, Tomsk, Russia
- Institute of Transfusion Medicine and Immunology, Mannheim Institute for Innate Immunoscience (MI3), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
- *Correspondence: Julia Kzhyshkowska,
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5
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Manta CP, Leibing T, Friedrich M, Nolte H, Adrian M, Schledzewski K, Krzistetzko J, Kirkamm C, David Schmid C, Xi Y, Stojanovic A, Tonack S, de la Torre C, Hammad S, Offermanns S, Krüger M, Cerwenka A, Platten M, Goerdt S, Géraud C. Targeting of Scavenger Receptors Stabilin-1 and Stabilin-2 Ameliorates Atherosclerosis by a Plasma Proteome Switch Mediating Monocyte/Macrophage Suppression. Circulation 2022; 146:1783-1799. [PMID: 36325910 DOI: 10.1161/circulationaha.121.058615] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Scavenger receptors Stabilin-1 (Stab1) and Stabilin-2 (Stab2) are preferentially expressed by liver sinusoidal endothelial cells. They mediate the clearance of circulating plasma molecules controlling distant organ homeostasis. Studies suggest that Stab1 and Stab2 may affect atherosclerosis. Although subsets of tissue macrophages also express Stab1, hematopoietic Stab1 deficiency does not modulate atherogenesis. Here, we comprehensively studied how targeting Stab1 and Stab2 affects atherosclerosis. METHODS ApoE-KO mice were interbred with Stab1-KO and Stab2-KO mice and fed a Western diet. For antibody targeting, Ldlr-KO mice were also used. Unbiased plasma proteomics were performed and independently confirmed. Ligand binding studies comprised glutathione-S-transferase-pulldown and endocytosis assays. Plasma proteome effects on monocytes were studied by single-cell RNA sequencing in vivo, and by gene expression analyses of Stabilin ligand-stimulated and plasma-stimulated bone marrow-derived monocytes/macrophages in vitro. RESULTS Spontaneous and Western diet-associated atherogenesis was significantly reduced in ApoE-Stab1-KO and ApoE-Stab2-KO mice. Similarly, inhibition of Stab1 or Stab2 by monoclonal antibodies significantly reduced Western diet-associated atherosclerosis in ApoE-KO and Ldlr-KO mice. Although neither plasma lipid levels nor circulating immune cell numbers were decisively altered, plasma proteomics revealed a switch in the plasma proteome, consisting of 231 dysregulated proteins comparing wildtype with Stab1/2-single and Stab1/2-double KO, and of 41 proteins comparing ApoE-, ApoE-Stab1-, and ApoE-Stab2-KO. Among this broad spectrum of common, but also disparate scavenger receptor ligand candidates, periostin, reelin, and TGFBi (transforming growth factor, β-induced), known to modulate atherosclerosis, were independently confirmed as novel circulating ligands of Stab1/2. Single-cell RNA sequencing of circulating myeloid cells of ApoE-, ApoE-Stab1-, and ApoE-Stab2-KO mice showed transcriptomic alterations in patrolling (Ccr2-/Cx3cr1++/Ly6Clo) and inflammatory (Ccr2+/Cx3cr1+/Ly6Chi) monocytes, including downregulation of proatherogenic transcription factor Egr1. In wildtype bone marrow-derived monocytes/macrophages, ligand exposure alone did not alter Egr1 expression in vitro. However, exposure to plasma from ApoE-Stab1-KO and ApoE-Stab2-KO mice showed a reverted proatherogenic macrophage activation compared with ApoE-KO plasma, including downregulation of Egr1 in vitro. CONCLUSIONS Inhibition of Stab1/Stab2 mediates an anti-inflammatory switch in the plasma proteome, including direct Stabilin ligands. The altered plasma proteome suppresses both patrolling and inflammatory monocytes and, thus, systemically protects against atherogenesis. Altogether, anti-Stab1- and anti-Stab2-targeted therapies provide a novel approach for the future treatment of atherosclerosis.
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Affiliation(s)
- Calin-Petru Manta
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Thomas Leibing
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Mirco Friedrich
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Neurology, MCTN (M.F., M.P.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,DKTK Clinical Cooperation Unit Neuroimmunology and Brain Tumor Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany (M.F., M.P.)
| | - Hendrik Nolte
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Institute for Genetics and CECAD, University of Cologne, Germany (H.N., M.K.).,Max Planck Institute for Biology of Ageing, Cologne, Germany (H.N.)
| | - Monica Adrian
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Kai Schledzewski
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Jessica Krzistetzko
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Christof Kirkamm
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Christian David Schmid
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Yannick Xi
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Ana Stojanovic
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Immunobiochemistry, Mannheim Institute for Innate Immunoscience, MI3 (A.S., A.C.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Sarah Tonack
- Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Carolina de la Torre
- Centre for Medical Research (ZMF) (C.d.l.T.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Seddik Hammad
- Department of Medicine II (S.H.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Stefan Offermanns
- Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Marcus Krüger
- Institute for Genetics and CECAD, University of Cologne, Germany (H.N., M.K.).,Max Planck Institute for Heart and Lung Research, Department of Pharmacology, Bad Nauheim, Germany (S.T., S.O., M.K.)
| | - Adelheid Cerwenka
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Immunobiochemistry, Mannheim Institute for Innate Immunoscience, MI3 (A.S., A.C.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Michael Platten
- European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Department of Neurology, MCTN (M.F., M.P.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,DKTK Clinical Cooperation Unit Neuroimmunology and Brain Tumor Immunology, German Cancer Research Center (DKFZ), Heidelberg, Germany (M.F., M.P.)
| | - Sergij Goerdt
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
| | - Cyrill Géraud
- Department of Dermatology, Venereology, and Allergology (C.-P.M., T.L., M.A., K.S., J.K., C.K., C.D.S., Y.X., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,Section of Clinical and Molecular Dermatology (T.L., M.A., J.K., C.K., Y.X., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany.,European Center for Angioscience (ECAS) (C.-P.M., T.L., M.F., M.A., K.S., J.K., C.K., C.D.S., Y.X., A.S., A.C., M.P., S.G., C.G.), University Medical Center and Medical Faculty Mannheim, Heidelberg University, Germany
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6
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Nian Q, Li J, Han Z, Liang Q, Liu M, Yang C, Rodrigues-Lima F, Jiang T, Zhao L, Zeng J, Liu C, Shi J. SPARC in hematologic malignancies and novel technique for hematological disease with its abnormal expression. Biomed Pharmacother 2022; 153:113519. [DOI: 10.1016/j.biopha.2022.113519] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 08/02/2022] [Accepted: 08/03/2022] [Indexed: 11/27/2022] Open
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7
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MISIRLI D, BİNGÖL ÖZAKPINAR Ö, ŞEKERLER T, ARU B, YANIKKAYA DEMİREL G, TUNOĞLU S, OZSAVCİ D. Effects of SPARC and Possible Receptors on Colon Cancer Cell Line. CLINICAL AND EXPERIMENTAL HEALTH SCIENCES 2022. [DOI: 10.33808/clinexphealthsci.1100770] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
Objective: The aim of this study was to observe the apoptotic/cytotoxic effects of exogenous SPARC on colon cancer cell line HT-29, then to investigate the function of stabilin-1 and integrin αvβ3, which are possible receptors for SPARC in colon cancer cells and to determine the quantitation of their receptor numbers.
Methods: Appropriate doses of exogenous SPARC and it’s inhibitor, cilengitide added to HT-29 cell line were determined by xCELLigence Real-Time Cell Analysis system, SPARC-mediated caspase 3 expressions were measured. Using the RT-PCR system, gene expression levels of SPARC, stabilin-1 and integrin αvβ3 receptors (silenced/nonsilenced with cilengitide) were detected then the numbers of receptors per cell were quantitated by flow cytometry.
Results: IC50 value of SPARC was determined as 4.57 μg/mL and IC50 value of cilengitide was determined as 50 nM. 5 μg/mL exogenous SPARC caused increased apoptosis in the HT-29 line. Significant increase in gene expression of integrin αvβ3 receptor was observed in the group incubated with 5 μg/mL SPARC, contrarily, the addition of cilengitide decreased gene expressions. The integrin αvβ3 receptor numbers
increased approximately 2-fold with SPARC compared to the control. No significant changes were observed in the gene expression and receptor numbers of stabilin-1.
Conclusion: Exogenous SPARC was shown to reduce proliferation and induce apoptosis in colon cancer cells. Integrin αvβ3 is thought to be the possible receptor mediating SPARC in colon cancer cells. Quantification of surface receptors per cell, which we think we have done first, can be considered as a marker in the follow-up of anticancer treatments.
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8
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Magalhaes MS, Potter HG, Ahlback A, Gentek R. Developmental programming of macrophages by early life adversity. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2022; 368:213-259. [PMID: 35636928 DOI: 10.1016/bs.ircmb.2022.02.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Macrophages are central elements of all organs, where they have a multitude of physiological and pathological functions. The first macrophages are produced during fetal development, and most adult organs retain populations of fetal-derived macrophages that self-maintain without major input of hematopoietic stem cell-derived monocytes. Their developmental origins make macrophages highly susceptible to environmental perturbations experienced in early life, in particular the fetal period. It is now well recognized that such adverse developmental conditions contribute to a wide range of diseases later in life. This chapter explores the notion that macrophages are key targets of environmental adversities during development, and mediators of their long-term impact on health and disease. We first briefly summarize our current understanding of macrophage ontogeny and their biology in tissues and consider potential mechanisms by which environmental stressors may mediate fetal programming. We then review evidence for programming of macrophages by adversities ranging from maternal immune activation and diet to environmental pollutants and toxins, which have disease relevance for different organ systems. Throughout this chapter, we contemplate appropriate experimental strategies to study macrophage programming. We conclude by discussing how our current knowledge of macrophage programming could be conceptualized, and finally highlight open questions in the field and approaches to address them.
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Affiliation(s)
- Marlene S Magalhaes
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Harry G Potter
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Anna Ahlback
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom
| | - Rebecca Gentek
- Centre for Inflammation Research & Centre for Reproductive Health, Queens Medical Research Institute, University of Edinburgh, Edinburgh, United Kingdom.
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9
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Silva-Bermudez LS, Sevastyanova TN, Schmuttermaier C, De La Torre C, Schumacher L, Klüter H, Kzhyshkowska J. Titanium Nanoparticles Enhance Production and Suppress Stabilin-1-Mediated Clearance of GDF-15 in Human Primary Macrophages. Front Immunol 2021; 12:760577. [PMID: 34975851 PMCID: PMC8714923 DOI: 10.3389/fimmu.2021.760577] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2021] [Accepted: 11/23/2021] [Indexed: 11/13/2022] Open
Abstract
Macrophages are key innate immune cells that mediate implant acceptance or rejection. Titanium implants degrade over time inside the body, which results in the release of implant wear-off particles. Titanium nanoparticles (TiNPs) favor pro-inflammatory macrophage polarization (M1) and lower tolerogenic activation (M2). GDF-15 regulates immune tolerance and fibrosis and is endocytosed by stabilin-1. How TiNPs affect the healing activities of macrophages and their release of circulating cytokines is an open question in regenerative medicine. In this study for the first time, we identified the transcriptional program induced and suppressed by TiNPs in human pro-inflammatory and healing macrophages. Microarray analysis revealed that TiNPs altered the expression of 5098 genes in M1 (IFN-γ-stimulated) and 4380 genes in M2 (IL-4–stimulated) macrophages. 1980 genes were differentially regulated in both M1 and M2. Affymetrix analysis, confirmed by RT-PCR, demonstrated that TiNPs upregulate expression of GDF-15 and suppress stabilin-1, scavenger receptor of GDF-15. TiNPs also significantly stimulated GDF-15 protein secretion in inflammatory and healing macrophages. Flow cytometry demonstrated, that scavenging activity of stabilin-1 was significantly suppressed by TiNPs. Confocal microscopy analysis showed that TiNPs impair internalization of stabilin-1 ligand acLDL and its transport to the endocytic pathway. Our data demonstrate that TiNPs have a dual effect on the GDF-15/stabilin-1 interaction in macrophage system, by increasing the production of GDF-15 and suppressing stabilin-1-mediated clearance function. In summary, this process can result in a significant increase of GDF-15 in the extracellular space and in circulation leading to unbalanced pro-fibrotic reactions and implant complications.
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Affiliation(s)
- Lina S. Silva-Bermudez
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
| | - Tatyana N. Sevastyanova
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Christina Schmuttermaier
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Carolina De La Torre
- Microarray Analytics – NGS Core Facility (IKC), Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Leonie Schumacher
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Harald Klüter
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
| | - Julia Kzhyshkowska
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
- German Red Cross Blood Service Baden-Württemberg – Hessen, Mannheim, Germany
- *Correspondence: Julia Kzhyshkowska,
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10
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Stakheyeva M, Patysheva M, Kaigorodova E, Zavyalova M, Tarabanovskaya N, Choynzonov E, Cherdyntseva N. Tumor Properties Mediate the Relationship Between Peripheral Blood Monocytes and Tumor-Associated Macrophages in Breast Cancer. Cancer Invest 2021; 40:442-456. [PMID: 34882039 DOI: 10.1080/07357907.2021.2016803] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
In cancer patients, circulating monocytes show functional alterations. Since monocytes are precursors of tumor-associated macrophages (TAMs), TAMs ensuring tumor viability are potentially replenished through the recruitment of monocytes with specific properties. We demonstrated that locoregional metastasis and circulating factors, such as CD45-EpCAM + CD44 + CD24-/low circulating tumor cells, and serum MCP-1 and HMGB1 were statistically associated with modulation of the monocyte features in breast cancer patients. The count of circulating CD45-EpCAM + cells correlated with CD68+, CD163 + monocyte in blood, and with density of CD68 + TAM in breast cancer tumors. Overall, the relationship between monocytes and TAMs is mediated by the tumor in breast cancer patients.
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Affiliation(s)
- Marina Stakheyeva
- Laboratory Molecular Oncology and Immunology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.,Laboratory of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk, Russia
| | - Marina Patysheva
- Laboratory Molecular Oncology and Immunology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.,Laboratory of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk, Russia
| | - Evgenia Kaigorodova
- Department of General and Molecular Pathology, Cancer Research Institute Tomsk National Research Medical Center, Tomsk, Russia
| | - Marina Zavyalova
- Department of General and Molecular Pathology, Cancer Research Institute Tomsk National Research Medical Center, Tomsk, Russia
| | - Natalia Tarabanovskaya
- Department of General Oncology, Cancer Research Institute Tomsk National Research Medical Center, Tomsk, Russia
| | - Evgeny Choynzonov
- Department of Head and Neck Oncology, Cancer Research Institute Tomsk National Research Medical Center, Tomsk, Russia
| | - Nadezhda Cherdyntseva
- Laboratory Molecular Oncology and Immunology, Cancer Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, Tomsk, Russia.,Laboratory of Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk, Russia
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11
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Tadayon S, Dunkel J, Takeda A, Eichin D, Virtakoivu R, Elima K, Jalkanen S, Hollmén M. Lymphatic Endothelial Cell Activation and Dendritic Cell Transmigration Is Modified by Genetic Deletion of Clever-1. Front Immunol 2021; 12:602122. [PMID: 33746947 PMCID: PMC7970002 DOI: 10.3389/fimmu.2021.602122] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2020] [Accepted: 01/06/2021] [Indexed: 01/01/2023] Open
Abstract
Clever-1 also known as Stabilin-1 and FEEL-1 is a scavenger molecule expressed on a subpopulation of anti-inflammatory macrophages and lymphatic endothelial cells (LECs). However, its role in regulating dendritic cell (DC) trafficking and subsequent effects on immunity have remained unexplored. In this study, we demonstrate that DC trafficking from the skin into the draining lymph nodes is compromised in the absence of Clever-1. By adoptive transfer approaches we further show that the poor trafficking is due to the impaired entrance of DCs into afferent lymphatics. Despite this, injections of ovalbumin-loaded DCs into the footpads induced a stronger proliferative response of OT II T cells in the draining lymph nodes. This could be explained by the increased MHC II expression on DCs and a less tolerogenic phenotype of LECs in lymph nodes of Clever-1 knockout mice. Thus, although fewer DCs reach the nodes, they are more active in creating antigen-specific immune responses. This suggests that the DCs migrating to the draining lymph node within Clever-1 positive lymphatics experience immunosuppressive interactions with LECs. In conclusion, besides being a trafficking molecule on lymphatic vasculature Clever-1 is immunosuppressive towards migrating DCs and thus, regulates the magnitude of immune responses created by incoming DCs in the draining lymph nodes.
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Affiliation(s)
- Sina Tadayon
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Turku Graduate School of Molecular Medicine, University of Turku, Turku, Finland
| | - Johannes Dunkel
- MediCity Research Laboratory, University of Turku, Turku, Finland
| | - Akira Takeda
- MediCity Research Laboratory, University of Turku, Turku, Finland
| | - Dominik Eichin
- MediCity Research Laboratory, University of Turku, Turku, Finland
| | | | - Kati Elima
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Maija Hollmén
- MediCity Research Laboratory, University of Turku, Turku, Finland
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12
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Barthes J, Lagarrigue P, Riabov V, Lutzweiler G, Kirsch J, Muller C, Courtial EJ, Marquette C, Projetti F, Kzhyskowska J, Lavalle P, Vrana NE, Dupret-Bories A. Biofunctionalization of 3D-printed silicone implants with immunomodulatory hydrogels for controlling the innate immune response: An in vivo model of tracheal defect repair. Biomaterials 2020; 268:120549. [PMID: 33278685 DOI: 10.1016/j.biomaterials.2020.120549] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 11/13/2020] [Accepted: 11/18/2020] [Indexed: 12/23/2022]
Abstract
The recent advances in 3D-printed silicone (PDMS: polydimethylsiloxane) implants present prospects for personalized implants with highly accurate anatomical conformity. However, a potential adverse effect, such as granuloma formation due to immune reactions, still exists. One potential way to overcome this problem is to control the implant/host interface using immunomodulatory coatings. In this study, a new cytokine cocktail composed of interleukin-10 and prostaglandin-E2 was designed to decrease adverse immune reactions and promote tissue integration by fixing macrophages into M2 pro-healing phenotype for an extended period of time. In vitro, the cytokine cocktail maintained low levels of pro-inflammatory cytokine (TNF-α and IL-6) secretions and induced the secretion of IL-10 and the upregulation of multifunctional scavenging and sorting receptor stabilin-1, expressed by M2 macrophages. This cocktail was then loaded in a gelatine-based hydrogel to develop an immunomodulatory material that could be used as a coating for medical devices. The efficacy of this coating was demonstrated in an in vivo rat model during the reconstruction of a tracheal defect by 3D-printed silicone implants. The coating was stable on the silicone implants for over 2 weeks, and the controlled release of the cocktail components was achieved for at least 14 days. In vivo, only 33% of the animals with bare silicone implants survived, whereas 100% of the animals survived with the implant equipped with the immunomodulatory hydrogel. The presence of the hydrogel and the cytokine cocktail diminished the thickness of the inflammatory tissue, the intensity of both acute and chronic inflammation, the overall fibroblastic reaction, the presence of oedema and the formation of fibrinoid (assessed by histology) and led to a 100% survival rate. At the systemic level, the presence of immunomodulatory hydrogels significantly decreased pro-inflammatory cytokines such as TNF-α, IFN-γ, CXCL1 and MCP-1 levels at day 7 and significantly decreased IL-1α, IL-1β, CXCL1 and MCP-1 levels at day 21. The ability of this new immunomodulatory hydrogel to control the level of inflammation once applied to a 3D-printed silicone implant has been demonstrated. Such thin coatings can be applied to any implants or scaffolds used in tissue engineering to diminish the initial immune response, improve the integration and functionality of these materials and decrease potential complications related to their presence.
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Affiliation(s)
- J Barthes
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France.
| | - P Lagarrigue
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France
| | - V Riabov
- Institute for Transfusion Medicine and Immunology, Medical, Faculty Mannheim, University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68167, Mannheim, Germany
| | - G Lutzweiler
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France
| | - J Kirsch
- Institute for Transfusion Medicine and Immunology, Medical, Faculty Mannheim, University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68167, Mannheim, Germany
| | - C Muller
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France
| | - E-J Courtial
- 3d.FAB, Université Lyon1, CNRS, INSA, CPE-Lyon, ICBMS, UMR 5246, 43, Bd du 11 Novembre 1918, 69622, Villeurbanne cedex, France
| | - C Marquette
- 3d.FAB, Université Lyon1, CNRS, INSA, CPE-Lyon, ICBMS, UMR 5246, 43, Bd du 11 Novembre 1918, 69622, Villeurbanne cedex, France
| | - F Projetti
- Department of Pathology, 18 rue du general Catroux, 87039, Limoges Cedex 1, France
| | - J Kzhyskowska
- Institute for Transfusion Medicine and Immunology, Medical, Faculty Mannheim, University of Heidelberg, Theodor-Kutzer Ufer 1-3, 68167, Mannheim, Germany; German Red Cross Blood Service Baden-Württemberg - Hessen, Mannheim, Germany; National Research Tomsk State University, Tomsk, 634050, Russia
| | - P Lavalle
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France
| | - N E Vrana
- Institut National de La Santé et de La Recherche Médicale, INSERM UMR1121 "Biomaterials and Bioengineering", 11 Rue Humann, 67085, Strasbourg, France; Spartha Medical, 14B rue de La Canardière, 67100, Strasbourg, France
| | - A Dupret-Bories
- Department of Otorhinolaryngology, Head and Neck Surgery, Institut Claudius Regaud, Institut Universitaire du Cancer Toulouse Oncopole, 31009, Toulouse, France.
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13
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Olsavszky V, Sticht C, Schmid CD, Winkler M, Wohlfeil SA, Olsavszky A, Schledzewski K, Géraud C, Goerdt S, Leibing T, Koch PS. Exploring the transcriptomic network of multi-ligand scavenger receptor Stabilin-1- and Stabilin-2-deficient liver sinusoidal endothelial cells. Gene 2020; 768:145284. [PMID: 33130055 DOI: 10.1016/j.gene.2020.145284] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 10/09/2020] [Accepted: 10/26/2020] [Indexed: 02/07/2023]
Abstract
The Class H scavenger receptors Stabilin-1 (Stab1) and Stabilin-2 (Stab2) are two of the most highly expressed genes in liver sinusoidal endothelial cells (LSECs). While Stab1-deficient (Stab1KO) and Stab2-deficient (Stab2KO) mice are phenotypically unremarkable, Stab1/2-double-deficient (StabDKO) mice exhibit perisinusoidal liver fibrosis, glomerulofibrotic nephropathy and a reduced life expectancy. These conditions are caused by insufficiently scavenged circulating noxious blood factors. The effects of either Stab-single- or double-deficiency on LSEC differentiation and function, however, have not yet been thoroughly investigated. Therefore, we performed comprehensive transcriptomic analyses of primary LSECs from Stab1KO, Stab2KO and StabDKO mice. Microarray analysis revealed dysregulation of pathways and genes involved in established LSEC functions while sinusoidal endothelial marker gene expression was grossly unchanged. 82 genes were significantly altered in Stab1KO, 96 genes in Stab2KO and 238 genes in StabDKO compared with controls; 42 genes were found to be commonly dysregulated in all three groups and all of these genes were downregulated. These commonly downregulated genes (CDGs) were categorized as "potential scavengers," "cell adhesion molecules," "TGF-β/BMP-signaling" or "collagen and extracellular matrix (ECM) components". Among CDGs, Colec10, Lumican and Decorin, were the most strongly down-regulated genes and the corresponding proteins impact on the interaction of LSECs with chemokines, ECM components and carbohydrate structures. Similarly, "chemokine signaling," "cytokine-cytokine receptor interaction" and "ECM-receptor interaction," were the GSEA categories which represented most of the downregulated genes in Stab1KO and Stab2KO LSECs. In summary, our data show that loss of a single Stabilin scavenger receptor - and to a greater extent of both receptors - profoundly alters the transcriptomic repertoire of LSECs. These alterations may affect LSEC-specific functions, especially interactions of LSECs with the ECM and during inflammation as well as clearance of the peripheral blood.
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Affiliation(s)
- Victor Olsavszky
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany.
| | - Carsten Sticht
- Center for Medical Research, Medical Faculty Mannheim, University of Heidelberg, Mannheim 68167, Germany
| | - Christian D Schmid
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany
| | - Manuel Winkler
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany
| | - Sebastian A Wohlfeil
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; Section of Clinical and Molecular Dermatology, Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Ana Olsavszky
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; Section of Clinical and Molecular Dermatology, Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Kai Schledzewski
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany
| | - Cyrill Géraud
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; Section of Clinical and Molecular Dermatology, Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany; European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim 68167, Germany
| | - Sergij Goerdt
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim 68167, Germany
| | - Thomas Leibing
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; Section of Clinical and Molecular Dermatology, Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, Mannheim, Germany
| | - Philipp-Sebastian Koch
- Department of Dermatology, Venereology and Allergy, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, and Center of Excellence in Dermatology, Mannheim 68167, Germany; European Center for Angioscience, Medical Faculty Mannheim, Heidelberg University, Mannheim 68167, Germany
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14
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Kim SY, Lee EH, Kim EN, Son WC, Kim YH, Park SY, Kim IS, Kim JE. Identifying Stabilin-1 and Stabilin-2 Double Knockouts in Reproduction and Placentation: A Descriptive Study. Int J Mol Sci 2020; 21:ijms21197235. [PMID: 33008099 PMCID: PMC7583024 DOI: 10.3390/ijms21197235] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Revised: 09/26/2020] [Accepted: 09/29/2020] [Indexed: 12/13/2022] Open
Abstract
The placenta undergoes reconstruction at different times during fetal development to supply oxygen and nutrients required throughout pregnancy. To accommodate the rapid growth of the fetus, small spiral arteries undergo remodeling in the placenta. This remodeling includes apoptosis of endothelial cells that line spiral arteries, which are replaced by trophoblasts of fetal origin. Removal of dead cells is critical during this process. Stabilin-1 (Stab1) and stabilin-2 (Stab2) are important receptors expressed on scavenger cells that absorb and degrade apoptotic cells, and Stab1 is expressed in specific cells of the placenta. However, the role of Stab1 and Stab2 in placental development and maintenance remain unclear. In this study, we assessed Stab1 and Stab2 expression in the placenta and examined the reproductive capacity and placental development using a double-knockout mouse strain lacking both Stab1 and Stab2 (Stab1/2 dKO mice). Most pregnant Stab1/2 dKO female mice did not produce offspring and exhibited placental defects, including decidual hemorrhage and necrosis. Findings of this study offer the first description of the phenotypic characteristics of placentas and embryos of Stab1/2 dKO females during pregnancy, suggesting that Stab1 and Stab2 are involved in placental development and maintenance.
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Affiliation(s)
- Soon-Young Kim
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (S.-Y.K.); (E.-H.L.)
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu 41944, Korea
| | - Eun-Hye Lee
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (S.-Y.K.); (E.-H.L.)
| | - Eun Na Kim
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (E.N.K.); (W.-C.S.)
| | - Woo-Chan Son
- Department of Pathology, Asan Medical Center, University of Ulsan College of Medicine, Seoul 05505, Korea; (E.N.K.); (W.-C.S.)
| | - Yeo Hyang Kim
- Department of Pediatrics, School of Medicine, Kyungpook National University, Daegu 41944, Korea;
- Division of Pediatric Cardiology, Kyungpook National University Children’s Hospital, Daegu 41404, Korea
| | - Seung-Yoon Park
- Department of Biochemistry, School of Medicine, Dongguk University, Gyeongju 38066, Korea;
| | - In-San Kim
- Center for Theragnosis, Biomedical Research Institute, Korea Institute of Science and Technology, Seoul 02792, Korea;
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Korea
| | - Jung-Eun Kim
- Department of Molecular Medicine, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu 41944, Korea; (S.-Y.K.); (E.-H.L.)
- BK21 Plus KNU Biomedical Convergence Program, Department of Biomedical Science, Kyungpook National University, Daegu 41944, Korea
- Correspondence: ; Tel.: +82-53-420-4949
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15
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Pandey E, Nour AS, Harris EN. Prominent Receptors of Liver Sinusoidal Endothelial Cells in Liver Homeostasis and Disease. Front Physiol 2020; 11:873. [PMID: 32848838 PMCID: PMC7396565 DOI: 10.3389/fphys.2020.00873] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022] Open
Abstract
Liver sinusoidal endothelial cells (LSECs) are the most abundant non-parenchymal cells lining the sinusoidal capillaries of the hepatic system. LSECs are characterized with numerous fenestrae and lack basement membrane as well as a diaphragm. These unique morphological characteristics of LSECs makes them the most permeable endothelial cells of the mammalian vasculature and aid in regulating flow of macromolecules and small lipid-based structures between sinusoidal blood and parenchymal cells. LSECs have a very high endocytic capacity aided by scavenger receptors (SR), such as SR-A, SR-B (SR-B1 and CD-36), SR-E (Lox-1 and mannose receptors), and SR-H (Stabilins). Other high-affinity receptors for mediating endocytosis include the FcγRIIb, which assist in the antibody-mediated removal of immune complexes. Complemented with intense lysosomal activity, LSECs play a vital role in the uptake and degradation of many blood borne waste macromolecules and small (<280 nm) colloids. Currently, seven Toll-like receptors have been investigated in LSECs, which are involved in the recognition and clearance of pathogen-associated molecular pattern (PAMPs) as well as damage associated molecular pattern (DAMP). Along with other SRs, LSECs play an essential role in maintaining lipid homeostasis with the low-density lipoprotein receptor-related protein-1 (LRP-1), in juxtaposition with hepatocytes. LSECs co-express two surface lectins called L-Specific Intercellular adhesion molecule-3 Grabbing Non-integrin Receptor (L-SIGN) and liver sinusoidal endothelial cell lectin (LSECtin). LSECs also express several adhesion molecules which are involved in the recruitment of leukocytes at the site of inflammation. Here, we review these cell surface receptors as well as other components expressed by LSECs and their functions in the maintenance of liver homeostasis. We further discuss receptor expression and activity and dysregulation associated with the initiation and progression of many liver diseases, such as hepatocellular carcinoma, liver fibrosis, and cirrhosis, alcoholic and non-alcoholic fatty liver diseases and pseudocapillarization with aging.
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Affiliation(s)
- Ekta Pandey
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
| | - Aiah S Nour
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
| | - Edward N Harris
- Department of Biochemistry, Universityof Nebraska, Lincoln, NE, United States
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16
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New tools to prevent cancer growth and spread: a 'Clever' approach. Br J Cancer 2020; 123:501-509. [PMID: 32595212 PMCID: PMC7434904 DOI: 10.1038/s41416-020-0953-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2019] [Revised: 05/19/2020] [Accepted: 06/02/2020] [Indexed: 12/12/2022] Open
Abstract
Clever-1 (also known as Stabilin-1 and FEEL-1) is a scavenger receptor expressed on lymphatic endothelial cells, sinusoidal endothelial cells and immunosuppressive monocytes and macrophages. Its role in cancer growth and spread first became evident in Stab1–/– knockout mice, which have smaller primary tumours and metastases. Subsequent studies in mice and humans have shown that immunotherapeutic blockade of Clever-1 can activate T-cell responses, and that this response is mainly mediated by a phenotypic change in macrophages and monocytes from immunosuppressive to pro-inflammatory following Clever-1 inhibition. Analyses of human cancer cohorts have revealed marked associations between the number of Clever-1-positive macrophages and patient outcome. As hardly any reports to date have addressed the role of Clever-1 in immunotherapy resistance and T-cell dysfunction, we performed data mining using several published cancer cohorts, and observed a remarkable correlation between Clever-1 positivity and resistance to immune checkpoint therapies. This result provides impetus and potential for the ongoing clinical trial targeting Clever-1 in solid tumours, which has so far shown a shift towards immune activation when a particular epitope of Clever-1 is blocked.
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17
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Meda Spaccamela V, Valencia RG, Pastukhov O, Duppenthaler A, Dettmer MS, Erb J, Steiner UC, Hillinger S, Speckmann C, Ehl S, Reichenbach J, Siler U. High Levels of IL-18 and IFN-γ in Chronically Inflamed Tissue in Chronic Granulomatous Disease. Front Immunol 2019; 10:2236. [PMID: 31681257 PMCID: PMC6813411 DOI: 10.3389/fimmu.2019.02236] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 09/04/2019] [Indexed: 12/17/2022] Open
Abstract
Background: Chronic granulomatous disease (CGD) is caused by a malfunctioning nicotinamide adenine dinucleotide phosphate (NADPH) oxidase complex in phagocytes, leading to impaired bacterial and fungal killing and hyperinflammation. Objective: To characterize macrophage subsets and cytokine/chemokine signaling loops involved in CGD tissue hyperinflammation. Methods: Cytokine/chemokine production and surface marker expression were analyzed in inflamed tissue of four CGD patients and compared to cytokine/chemokine released by CGD macrophages upon priming to different macrophage subpopulations. Furthermore, the re-priming capacity of CGD pro-inflammatory M1 to M2a anti-inflammatory macrophages was evaluated. Results: In human CGD inflammatory tissue, IL-18 and IFN-γ were detected in significant quantity. Immunofluorescence analysis identified macrophages as one source of IL-18 in inflamed tissue. In vitro, CGD macrophages could be primed and re-primed into all inflammatory/anti-inflammatory macrophage subpopulations. IL-18 was also released by M1 CGD and control macrophages. Conclusion: CGD pro-inflammatory M1 macrophages remain M1 primed in vivo. As CGD M1 macrophages can be re-primed to anti-inflammatory M2a phenotype in vitro, macrophages are kept in M1 state in vivo by a persistent pro-inflammatory environment. Our results suggest a paracrine signaling loop between M1 macrophage derived IL-18 and non-macrophage derived IFN-γ maintaining macrophage pro-inflammatory activity in CGD tissue.
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Affiliation(s)
- Virginia Meda Spaccamela
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Rocio G Valencia
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland
| | - Oleksandr Pastukhov
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
| | - Andrea Duppenthaler
- Unit of Pediatric Infectious Diseases, University Children's Hospital Bern, Bern, Switzerland
| | | | - Juliane Erb
- Center for Dentistry, University of Zurich, Zurich, Switzerland
| | - Urs C Steiner
- Department of Clinical Immunology, University Hospital Zurich, Zurich, Switzerland
| | - Sven Hillinger
- Department of Thoracic Surgery, University Hospital Zurich, Zurich, Switzerland
| | - Carsten Speckmann
- Faculty of Medicine, Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Institute for Immunodeficiency, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Stephan Ehl
- Faculty of Medicine, Center for Chronic Immunodeficiency (CCI), Medical Center - University of Freiburg, Institute for Immunodeficiency, University of Freiburg, Freiburg, Germany.,Faculty of Medicine, Center for Pediatrics and Adolescent Medicine, Medical Center, University of Freiburg, Freiburg, Germany
| | - Janine Reichenbach
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Zurich Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland.,Unit of Pediatric Infectious Diseases, University Children's Hospital Bern, Bern, Switzerland.,Center for Applied Biotechnology and Molecular Medicine, University Zurich, Zurich, Switzerland
| | - Ulrich Siler
- Division of Immunology, University Children's Hospital and Children's Research Center, Zurich, Switzerland.,Institute for Regenerative Medicine, University of Zurich, Zurich, Switzerland
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18
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Patten DA, Shetty S. The Role of Stabilin-1 in Lymphocyte Trafficking and Macrophage Scavenging in the Liver Microenvironment. Biomolecules 2019; 9:biom9070283. [PMID: 31315308 PMCID: PMC6681381 DOI: 10.3390/biom9070283] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Revised: 07/12/2019] [Accepted: 07/15/2019] [Indexed: 02/07/2023] Open
Abstract
Chronic liver diseases are a major global health burden, and cases of these conditions continue to rise in many countries. A diverse range of insults can lead to chronic liver disease, but they are all characterised by the infiltration and accumulation of immune cells within liver tissue and, if progressive, can lead to tissue fibrosis and cirrhosis. In this review, we focus on the role of stabilin-1 in two key processes that contribute to liver disease, namely, the recruitment of lymphocytes into liver tissue and the response of macrophages to tissue injury. Stabilin-1 is constitutively expressed on the sinusoidal endothelium of the liver and contributes to the homeostatic scavenging function of these cells. Epithelial damage in the context of chronic liver disease leads to the upregulation of stabilin-1 at sites of tissue injury, specifically at sites of immune cell recruitment and on subpopulations of hepatic macrophages. Functionally, stabilin-1 has been shown to mediate transendothelial migration of lymphocyte subsets in the setting of pro-inflammatory-activated human liver endothelium. In experimental models of liver fibrosis, stabilin-1 promotes the uptake of products of chronic oxidative stress by a subset of hepatic macrophages and suppresses their release of pro-inflammatory mediators that regulate tissue remodelling. These studies highlight the active contribution that scavenger receptors such as stabilin-1 can make in regulating chronic inflammation and tissue fibrosis, and their potential as novel therapeutic targets for these conditions.
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Affiliation(s)
- Daniel A Patten
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, Medical School, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham B15 2TT, UK
| | - Shishir Shetty
- Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, Medical School, University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
- NIHR Birmingham Biomedical Research Centre, University Hospitals Birmingham NHS Foundation Trust and University of Birmingham, Birmingham B15 2TT, UK.
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19
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Mezouar S, Ben Amara A, Chartier C, Gorvel L, Mege JL. A Fast and Reliable Method to Isolate Human Placental Macrophages. ACTA ACUST UNITED AC 2019; 125:e77. [PMID: 31125190 DOI: 10.1002/cpim.77] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Macrophages are specialized cells involved in recognition, uptake, and destruction of microorganisms. Human placental macrophages are poorly investigated because of the lack of a convenient protocol for their isolation. Here, we present a straightforward and reliable method to isolate macrophages from full-term human placentas. After enzymatic digestion of placental tissue and centrifugation of the cell suspension on a Ficoll cushion, placental macrophages are selected using magnetic beads coated with anti-CD14 antibodies. Isolated cells are characterized by flow cytometry. Ninety eight percent of isolated CD14+ placental macrophages also express the macrophage marker CD68. Thus, this efficient and reliable method yields placental macrophages at high purity and sufficient quantity for functional studies. © 2019 by John Wiley & Sons, Inc.
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Affiliation(s)
- Soraya Mezouar
- Aix-Marseille University, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Amira Ben Amara
- CRCM, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Céline Chartier
- Aix-Marseille University, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
| | - Laurent Gorvel
- CRCM, CNRS UMR7258, INSERM U1068, Institut Paoli-Calmettes, Aix-Marseille University, Marseille, France
| | - Jean-Louis Mege
- Aix-Marseille University, IRD, APHM, MEPHI, IHU-Méditerranée Infection, Marseille, France
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20
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Viitala M, Virtakoivu R, Tadayon S, Rannikko J, Jalkanen S, Hollmén M. Immunotherapeutic Blockade of Macrophage Clever-1 Reactivates the CD8 + T-cell Response against Immunosuppressive Tumors. Clin Cancer Res 2019; 25:3289-3303. [PMID: 30755440 DOI: 10.1158/1078-0432.ccr-18-3016] [Citation(s) in RCA: 63] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2018] [Revised: 01/08/2019] [Accepted: 02/06/2019] [Indexed: 11/16/2022]
Abstract
PURPOSE As foremost regulators of cancer-related inflammation and immunotherapeutic resistance, tumor-associated macrophages have garnered major interest as immunotherapeutic drug targets. However, depletory strategies have yielded little benefit in clinical studies to date. An alternative approach is to exploit macrophage plasticity and "reeducate" tumorigenic macrophages toward an immunostimulatory phenotype to activate the host's antitumor immunity.Experimental Design: We investigated the role of the macrophage scavenger receptor common lymphatic endothelial and vascular endothelial receptor-1 (Clever-1) on tumor growth in multiple mouse cancer models with inflammatory and noninflammatory characteristics by using conditional knockouts, bone marrow chimeras, and cell depletion experiments. In addition, the efficacy of immunotherapeutic Clever-1 blockade as monotherapy or in combination with anti-PD-1 was tested. RESULTS Genetic deficiency of macrophage Clever-1 markedly impaired solid tumor growth. This effect was mediated by macrophages that became immunostimulatory in the absence of Clever-1, skewing the suppressive tumor microenvironment toward inflammation and activating endogenous antitumor CD8+ T cells. Comparable effects were achieved with immunotherapeutic blockade of Clever-1. Notably, these effects were similar to those achieved by PD-1 checkpoint inhibition. Moreover, combining anti-Clever-1 with anti-PD-1 provided synergistic benefit in aggressive, nonresponsive tumors. CONCLUSIONS These findings demonstrate the importance of macrophages in mediating antitumor immune responses and support the clinical evaluation of immunotherapeutic Clever-1 blockade as a novel cancer treatment strategy.See related commentary by Mantovani and Bonecchi, p. 3202.
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Affiliation(s)
- Miro Viitala
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland.,Turku Doctoral Program of Molecular Medicine, University of Turku, Turku, Finland
| | - Reetta Virtakoivu
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Sina Tadayon
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland.,Turku Doctoral Program of Molecular Medicine, University of Turku, Turku, Finland
| | - Jenna Rannikko
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland
| | - Maija Hollmén
- MediCity Research Laboratory, Institute of Biomedicine, Faculty of Medicine, University of Turku, Turku, Finland.
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21
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Patten DA, Shetty S. More Than Just a Removal Service: Scavenger Receptors in Leukocyte Trafficking. Front Immunol 2018; 9:2904. [PMID: 30631321 PMCID: PMC6315190 DOI: 10.3389/fimmu.2018.02904] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 11/27/2018] [Indexed: 12/15/2022] Open
Abstract
Scavenger receptors are a highly diverse superfamily of proteins which are grouped by their inherent ability to bind and internalize a wide array of structurally diverse ligands which can be either endogenous or exogenous in nature. Consequently, scavenger receptors are known to play important roles in host homeostasis, with common endogenous ligands including apoptotic cells, and modified low density lipoproteins (LDLs); additionally, scavenger receptors are key regulators of inflammatory diseases, such as atherosclerosis. Also, as a consequence of their affinity for a wide range of microbial products, their role in innate immunity is also being increasingly studied. However, in this review, a secondary function of a number of endothelial-expressed scavenger receptors is discussed. There is increasing evidence that some endothelial-expressed scavenger receptors are able to directly bind leukocyte-expressed ligands and subsequently act as adhesion molecules in the trafficking of leukocytes in lymphatic and vascular tissues. Here, we cover the current literature on this alternative role for endothelial-expressed scavenger receptors and also speculate on their therapeutic potential.
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Affiliation(s)
- Daniel A Patten
- National Institute for Health Research Birmingham Liver Biomedical Research Unit and Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
| | - Shishir Shetty
- National Institute for Health Research Birmingham Liver Biomedical Research Unit and Centre for Liver and Gastrointestinal Research, Institute of Immunology and Immunotherapy, University of Birmingham, Birmingham, United Kingdom
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22
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Dunkel J, Viitala M, Karikoski M, Rantakari P, Virtakoivu R, Elima K, Hollmén M, Jalkanen S, Salmi M. Enhanced Antibody Production in Clever-1/Stabilin-1-Deficient Mice. Front Immunol 2018; 9:2257. [PMID: 30349531 PMCID: PMC6187969 DOI: 10.3389/fimmu.2018.02257] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2018] [Accepted: 09/11/2018] [Indexed: 01/13/2023] Open
Abstract
Clever-1, encoded by the Stab1 gene, is a scavenger and leukocyte trafficking receptor expressed by subsets of vascular and lymphatic endothelial cells and immunosuppressive macrophages. Monocyte Clever-1 also modulates T cell activation. However, nothing is known about the possible links between B cell function and Clever-1. Here, we found that Stab1 knockout mice (Stab1−/−) lacking the Clever-1 protein from all cells present with abnormally high antibody levels under resting conditions and show enhanced humoral immune responses after immunization with protein and carbohydrate antigens. Removal of the spleen does not abolish the augmented basal and post-immunization antibody levels in Clever-1–deficient mice. The increased IgG production is also present in mice in which Clever-1 is selectively ablated from macrophages. When compared to wildtype macrophages, Clever-1–deficient macrophages show increased TNF-α synthesis. In co-culture experiments, monocytes/macrophages deficient of Clever-1 support higher IgM production by B cells, which is blocked by TNF-α depletion. Collectively, our data show that the excessive inflammatory activity of monocytes/macrophages in the absence of Clever-1 results in augmented humoral immune responses in vivo.
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Affiliation(s)
- Johannes Dunkel
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Miro Viitala
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Marika Karikoski
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Pia Rantakari
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Reetta Virtakoivu
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Kati Elima
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Maija Hollmén
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
| | - Marko Salmi
- MediCity Research Laboratory, University of Turku, Turku, Finland.,Institute of Biomedicine, University of Turku, Turku, Finland
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23
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Macrophage-secreted interleukin-35 regulates cancer cell plasticity to facilitate metastatic colonization. Nat Commun 2018; 9:3763. [PMID: 30218063 PMCID: PMC6138674 DOI: 10.1038/s41467-018-06268-0] [Citation(s) in RCA: 100] [Impact Index Per Article: 16.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Accepted: 08/29/2018] [Indexed: 02/07/2023] Open
Abstract
A favorable interplay between cancer cells and the tumor microenvironment (TME) facilitates the outgrowth of metastatic tumors. Because of the distinct initiating processes between primary and metastatic tumors, we investigate the differences in tumor-associated macrophages (TAMs) from primary and metastatic cancers. Here we show that dual expression of M1 and M2 markers is noted in TAMs from primary tumors, whereas predominant expression of M2 markers is shown in metastatic TAMs. At metastatic sites, TAMs secrete interleukin-35 (IL-35) to facilitate metastatic colonization through activation of JAK2-STAT6-GATA3 signaling to reverse epithelial-mesenchymal transition (EMT) in cancer cells. In primary tumors, inflammation-induced EMT upregulates IL12Rβ2, a subunit of the IL-35 receptor, in cancer cells to help them respond to IL-35 during metastasis. Neutralization of IL-35 or knockout of IL-35 in macrophages reduces metastatic colonization. These results indicate the distinct TMEs of primary and metastatic tumors and provide potential targets for intercepting metastasis.
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24
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Seifert GJ. Fascinating Fasciclins: A Surprisingly Widespread Family of Proteins that Mediate Interactions between the Cell Exterior and the Cell Surface. Int J Mol Sci 2018; 19:E1628. [PMID: 29857505 PMCID: PMC6032426 DOI: 10.3390/ijms19061628] [Citation(s) in RCA: 55] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2018] [Revised: 05/16/2018] [Accepted: 05/17/2018] [Indexed: 12/19/2022] Open
Abstract
The Fasciclin 1 (FAS1) domain is an ancient structural motif in extracellular proteins present in all kingdoms of life and particularly abundant in plants. The FAS1 domain accommodates multiple interaction surfaces, enabling it to bind different ligands. The frequently observed tandem FAS1 arrangement might both positively and negatively regulate ligand binding. Additional protein domains and post-translational modifications are partially conserved between different evolutionary clades. Human FAS1 family members are associated with multiple aspects of health and disease. At the cellular level, mammalian FAS1 proteins are implicated in extracellular matrix structure, cell to extracellular matrix and cell to cell adhesion, paracrine signaling, intracellular trafficking and endocytosis. Mammalian FAS1 proteins bind to the integrin family of receptors and to protein and carbohydrate components of the extracellular matrix. FAS1 protein encoding plant genes exert effects on cellulosic and non-cellulosic cell wall structure and cellular signaling but to establish the modes of action for any plant FAS1 protein still requires biochemical experimentation. In fungi, eubacteria and archaea, the differential presence of FAS1 proteins in closely related organisms and isolated biochemical data suggest functions in pathogenicity and symbiosis. The inter-kingdom comparison of FAS1 proteins suggests that molecular mechanisms mediating interactions between cells and their environment may have evolved at the earliest known stages of evolution.
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Affiliation(s)
- Georg J Seifert
- Department of Applied Genetics and Cell Biology, University of Natural Resources and Life Science, Muthgasse 18, 1190 Vienna, Austria.
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25
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Gaus H, Miller CM, Seth PP, Harris EN. Structural Determinants for the Interactions of Chemically Modified Nucleic Acids with the Stabilin-2 Clearance Receptor. Biochemistry 2018; 57:2061-2064. [PMID: 29589907 PMCID: PMC5905987 DOI: 10.1021/acs.biochem.8b00126] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
![]()
The Stabilin receptors
are systemic clearance receptors for some
classes of chemically modified nucleic acid therapeutics. In this
study, the recombinant human secreted ecto-domain of the small isoform
of Stabilin-2 (s190) was purified from cell culture and evaluated
for direct binding with a multitude of antisense oligonucleotides
(ASOs) using a fluorescence polarization-based assay. The tested ASOs
varied in their backbone composition, modification of the ribose 2′
position, overall length of the oligo, and sequence of the nucleotide
bases. A fully phosphorothioate (PS) ASO with a 5–10–5
pattern of flanking 2′-O-methoxyethyl modifications
was then used to test the effects of pH and salt concentration on
receptor binding. These tests concluded that the PS backbone was the
primary determinant for ASO binding and that decreasing pH and increasing
salt generally increased the rate of ligand dissociation and fit within
the biological parameters expected of a constitutive recycling receptor.
These results will be useful in the rational design of therapeutic
oligonucleotides for enhancing their affinity or avoidance of the
Stabilin receptors.
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Affiliation(s)
- Hans Gaus
- Department of Medicinal Chemistry , Ionis Pharmaceuticals , Carlsbad , California 92010 , United States
| | - Colton M Miller
- Department of Biochemistry , University of Nebraska , Lincoln , Nebraska 68588 , United States
| | - Punit P Seth
- Department of Medicinal Chemistry , Ionis Pharmaceuticals , Carlsbad , California 92010 , United States
| | - Edward N Harris
- Department of Biochemistry , University of Nebraska , Lincoln , Nebraska 68588 , United States
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Miller CM, Tanowitz M, Donner AJ, Prakash TP, Swayze EE, Harris EN, Seth PP. Receptor-Mediated Uptake of Phosphorothioate Antisense Oligonucleotides in Different Cell Types of the Liver. Nucleic Acid Ther 2018; 28:119-127. [PMID: 29425080 DOI: 10.1089/nat.2017.0709] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023] Open
Abstract
Oligonucleotide therapeutics have emerged as a third distinct platform for drug discovery within the pharmaceutical industry. Five oligonucleotide-based drugs have been approved by the US FDA and over 100 oligonucleotides drugs are currently at different stages of human trials. Several of these oligonucleotide drugs are modified using the phosphorothioate (PS) backbone modification where one of the nonbridging oxygen atoms of the phosphodiester linkage is replaced with sulfur. In this review, we summarize our knowledge on receptor-mediated uptake of PS antisense oligonucleotides (ASOs) within different cell types of the liver-a privileged organ for the discovery of oligonucleotide-based therapeutics.
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Affiliation(s)
- Colton M Miller
- 1 Department of Biochemistry, University of Nebraska , Lincoln, Nebraska
| | | | | | | | | | - Edward N Harris
- 1 Department of Biochemistry, University of Nebraska , Lincoln, Nebraska
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Ryabov V, Gombozhapova A, Rogovskaya Y, Kzhyshkowska J, Rebenkova M, Karpov R. Cardiac CD68+ and stabilin-1+ macrophages in wound healing following myocardial infarction: From experiment to clinic. Immunobiology 2017; 223:413-421. [PMID: 29179985 DOI: 10.1016/j.imbio.2017.11.006] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2017] [Revised: 11/21/2017] [Accepted: 11/21/2017] [Indexed: 01/01/2023]
Abstract
Myocardial infarction (MI) remains the leading cause of mortality and morbidity throughout the world. Macrophages are key innate immune cells that play a significant role in transition from the inflammatory to the regenerative phase during wound healing following MI. The scavenger receptor stabilin-1 is one of the most interesting macrophage biomarkers. This receptor contributes to wound healing, angiogenesis, and tissue remodeling. We suggested a research protocol using macrophage biomarkers to study the cellular basis of cardiac remodeling and healing in patients with acute MI. The purpose of the research was to translate experimental knowledge regarding macrophage subsets and their biomarkers in post-infarction myocardial regeneration into results observed in clinical settings. The study included 41 patients with fatal MI type 1. All patients were divided into four groups according to the timeline of MI histopathology. In addition to routine histopathological analysis, macrophage infiltration was assessed by immunohistochemistry. We used CD68 as a marker for the cells of the macrophage lineage and stabilin-1 as an M2-like macrophage biomarker. The number of CD68+ and stabilin-1+ macrophages in the infarct area increased and peaked in the regenerative phase and did not decrease in the late stage of MI. In the peri-infarct area, the number of CD68+ macrophages increased in the inflammatory phase, peaked during the reparative phase, and did not decrease in the late phase, while the number of stabilin-1+ macrophages increased in the regenerative phase and remained unchanged. Additionally, in the reparative phase, we observed increase in the number of CD68+ and stabilin-1+ macrophages in the non-infarct area. The research protocol suggested allowed us to translate experimental knowledge regarding macrophage subsets and their biomarkers in post-infarction myocardial regeneration into clinical data. Taken together, these results demonstrated biphasic cardiac macrophage response following acute MI somewhat similar to that in a murine model. The increase in stabilin-1+ macrophage infiltration noticed in the myocardium during the regenerative phase and the strong positive correlation between the number of these cells and timeline of MI histopathology enabled us to propose stabilin-1 as a diagnostic macrophage biomarker in myocardium wound healing in patients with acute MI.
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Affiliation(s)
- Vyacheslav Ryabov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 111a Kievskaya Street, Tomsk, 634012, Russian Federation; National Research Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russian Federation; Siberian State Medical University, 2 Moskovsky Trakt, Tomsk, 634055, Russian Federation.
| | - Aleksandra Gombozhapova
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 111a Kievskaya Street, Tomsk, 634012, Russian Federation; National Research Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russian Federation.
| | - Yuliya Rogovskaya
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 111a Kievskaya Street, Tomsk, 634012, Russian Federation; National Research Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russian Federation.
| | - Julia Kzhyshkowska
- National Research Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russian Federation; University of Heidelberg, 1-3 Theodor-Kutzer Ufer, Mannheim, 68167, Germany.
| | - Mariya Rebenkova
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 111a Kievskaya Street, Tomsk, 634012, Russian Federation; National Research Tomsk State University, 36 Lenin Avenue, Tomsk, 634050, Russian Federation.
| | - Rostislav Karpov
- Cardiology Research Institute, Tomsk National Research Medical Center, Russian Academy of Sciences, 111a Kievskaya Street, Tomsk, 634012, Russian Federation; Siberian State Medical University, 2 Moskovsky Trakt, Tomsk, 634055, Russian Federation.
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León-Juárez M, Martínez–Castillo M, González-García LD, Helguera-Repetto AC, Zaga-Clavellina V, García-Cordero J, Flores-Pliego A, Herrera-Salazar A, Vázquez-Martínez ER, Reyes-Muñoz E. Cellular and molecular mechanisms of viral infection in the human placenta. Pathog Dis 2017; 75:4056146. [PMID: 28903546 PMCID: PMC7108519 DOI: 10.1093/femspd/ftx093] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2017] [Accepted: 07/27/2017] [Indexed: 12/22/2022] Open
Abstract
The placenta is a highly specialized organ that is formed during human gestation for conferring protection and generating an optimal microenvironment to maintain the equilibrium between immunological and biochemical factors for fetal development. Diverse pathogens, including viruses, can infect several cellular components of the placenta, such as trophoblasts, syncytiotrophoblasts and other hematopoietic cells. Viral infections during pregnancy have been associated with fetal malformation and pregnancy complications such as preterm labor. In this minireview, we describe the most recent findings regarding virus-host interactions at the placental interface and investigate the mechanisms through which viruses may access trophoblasts and the pathogenic processes involved in viral dissemination at the maternal-fetal interface.
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Affiliation(s)
- Moises León-Juárez
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Macario Martínez–Castillo
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Luis Didier González-García
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Addy Cecilia Helguera-Repetto
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Verónica Zaga-Clavellina
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Julio García-Cordero
- Departamento de Biomedicina Molecular, Centro de Investigación y de Estudios Avanzados del I.P.N. Av. I.P.N 2508 Col. San Pedro Zacatenco, CP 07360 Ciudad de México, México
| | - Arturo Flores-Pliego
- Departamento de Inmunobioquímica, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales 800, Col. Lomas Virreyes, CP 11000, Ciudad de México, México
| | - Alma Herrera-Salazar
- Departamento de Infectología e Inmunología Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales #800, Col. Lomas Virreyes, CP 11000. Ciudad de México, México
| | - Edgar Ricardo Vázquez-Martínez
- Unidad de Investigación en Reproducción Humana, Instituto Nacional de Perinatología-Facultad de Química UNAM, Ciudad de México, México
| | - Enrique Reyes-Muñoz
- Coordinación de Endocrinología, Instituto Nacional de Perinatología “Isidro Espinosa de los Reyes”, Montes Urales #800, Col. Lomas Virreyes, CP 11000. Ciudad de México. México
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Tumor-associated macrophages in human breast cancer parenchyma negatively correlate with lymphatic metastasis after neoadjuvant chemotherapy. Immunobiology 2016; 222:101-109. [PMID: 27510849 DOI: 10.1016/j.imbio.2016.08.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2016] [Accepted: 08/04/2016] [Indexed: 12/27/2022]
Abstract
Breast cancer is the leading cause of cancer death in women worldwide with high morbidity and mortality. Tumor-associated macrophages (TAM) are major innate immune cells in the tumor microenvironment controlling primary tumor growth and metastasis. Neoadjuvant chemotherapy (NACT) is a conventional pre-operative treatment for breast cancer. In the present study we examined the distribution of TAM in five distinct intratumoral morphological compartments of human breast cancer and their correlation with clinical parameters after NACT. Our data indicated that CD68+ but not stabilin-1+ TAM in areas with parenchymal elements negatively correlate with lymphatic metastasis after NACT. However, in cases where lymphatic metastases were detected (28 out of 50 analyzed samples) both amount of CD68+ and stabilin-1+ macrophages in the areas with coarse fibrous stroma directly correlated with the number of positive lymph nodes. In patients with complete response to the preoperative NACT the average score of CD68 expression in the areas with coarse fibrous stroma was lower compared with cases of a partial response and stable disease. We concluded that function of TAM after NACT depends on their intratumoral localization and local tumor microenvironment which plays an important role in polarization of macrophages towards tumor-suppressive or tumor-supportive types.
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Stabilin-1 expression defines a subset of macrophages that mediate tissue homeostasis and prevent fibrosis in chronic liver injury. Proc Natl Acad Sci U S A 2016; 113:9298-303. [PMID: 27474165 DOI: 10.1073/pnas.1604780113] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
Macrophages are key regulators of fibrosis development and resolution. Elucidating the mechanisms by which they mediate this process is crucial for establishing their therapeutic potential. Here, we use experimental models of liver fibrosis to show that deficiency of the scavenger receptor, stabilin-1, exacerbates fibrosis and delays resolution during the recovery phase. We detected a subset of stabilin-1(+) macrophages that were induced at sites of cellular injury close to the hepatic scar in mouse models of liver fibrosis and in human liver disease. Stabilin-1 deficiency abrogated malondialdehyde-LDL (MDA-LDL) uptake by hepatic macrophages and was associated with excess collagen III deposition. Mechanistically, the lack of stabilin-1 led to elevated intrahepatic levels of the profibrogenic chemokine CCL3 and an increase in GFAP(+) fibrogenic cells. Stabilin-1(-/-) macrophages demonstrated a proinflammatory phenotype during liver injury and the normal induction of Ly6C(lo) monocytes during resolution was absent in stabilin-1 knockouts leading to persistence of fibrosis. Human stabilin-1(+) monocytes efficiently internalized MDA-LDL and this suppressed their ability to secrete CCL3, suggesting that loss of stabilin-1 removes a brake to CCL3 secretion. Experiments with cell-lineage-specific knockouts revealed that stabilin-1 expression in myeloid cells is required for the induction of this subset of macrophages and that increased fibrosis occurs in their absence. This study demonstrates a previously unidentified regulatory pathway in fibrogenesis in which a macrophage scavenger receptor protects against organ fibrosis by removing fibrogenic products of lipid peroxidation. Thus, stabilin-1(+) macrophages shape the tissue microenvironment during liver injury and healing.
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Kzhyshkowska J, Gudima A, Moganti K, Gratchev A, Orekhov A. Perspectives for Monocyte/Macrophage-Based Diagnostics of Chronic Inflammation. Transfus Med Hemother 2016; 43:66-77. [PMID: 27226789 DOI: 10.1159/000444943] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2016] [Accepted: 02/22/2016] [Indexed: 12/17/2022] Open
Abstract
Low-grade chronic inflammation underlies the development of the most dangerous cardiometabolic disorders including type 2 diabetes and its vascular complications. In contrast to acute inflammation induced by bacteria and viruses, chronic inflammation can be driven by abnormal reaction to endogenous factors, including Th2 cytokines, metabolic factors like advanced glycation end products (AGEs), modified lipoproteins, or hyperglycemia. The key innate immune cells that recognize these factors in blood circulation are monocytes. Inflammatory programming of monocytes which migrate into tissues can, in turn, result into generation of tissue macrophages with pathological functions. Therefore, determination of the molecular and functional phenotype of circulating monocytes is a very promising diagnostic tool for the identification of hidden inflammation, which can precede the development of the pathology. Here we propose a new test system for the identification of inflammatory programming of monocytes: surface biomarkers and ex vivo functional system. We summarize the current knowledge about surface biomarkers for monocyte subsets, including CD16, CCR2, CX3CR1, CD64, stabilin-1 and CD36, and their association with inflammatory human disorders. Furthermore, we present the design of an ex vivo monocyte-based test system with minimal set of parameters as a potential diagnostic tool for the identification of personalized inflammatory responses.
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Affiliation(s)
- Julia Kzhyshkowska
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany; Red Cross Blood Service Baden-Württemberg-Hessen, Mannheim, Germany; Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk, Russia
| | - Alexandru Gudima
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Kondaiah Moganti
- Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
| | - Alexei Gratchev
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Tomsk, Russia
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Miller CM, Donner AJ, Blank EE, Egger AW, Kellar BM, Østergaard ME, Seth PP, Harris EN. Stabilin-1 and Stabilin-2 are specific receptors for the cellular internalization of phosphorothioate-modified antisense oligonucleotides (ASOs) in the liver. Nucleic Acids Res 2016; 44:2782-94. [PMID: 26908652 PMCID: PMC4824115 DOI: 10.1093/nar/gkw112] [Citation(s) in RCA: 110] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Accepted: 02/15/2016] [Indexed: 12/11/2022] Open
Abstract
Phosphorothioate (PS)-modified antisense oligonucleotides (ASOs) have been extensively investigated over the past three decades as pharmacological and therapeutic agents. One second generation ASO, Kynamro™, was recently approved by the FDA for the treatment of homozygous familial hypercholesterolemia and over 35 second generation PS ASOs are at various stages of clinical development. In this report, we show that the Stabilin class of scavenger receptors, which were not previously thought to bind DNA, do bind and internalize PS ASOs. With the use of primary cells from mouse and rat livers and recombinant cell lines each expressing Stabilin-1 and each isoform of Stabilin-2 (315-HARE and 190-HARE), we have determined that PS ASOs bind with high affinity and these receptors are responsible for bulk, clathrin-mediated endocytosis within the cell. Binding is primarily dependent on salt-bridge formation and correct folding of the intact protein receptor. Increased internalization rates also enhanced ASO potency for reducing expression of the non-coding RNA Malat-1, in Stabilin-expressing cell lines. A more thorough understanding of mechanisms by which ASOs are internalized in cells and their intracellular trafficking pathways will aid in the design of next generation antisense agents with improved therapeutic properties.
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Affiliation(s)
- Colton M Miller
- University of Nebraska-Lincoln, Dept. of Biochemistry, 1901 Vine Street Lincoln NE 68588, USA
| | - Aaron J Donner
- Ionis Pharmaceuticals, 2855 Gazelle Ct, Carlsbad, CA 92010, USA
| | - Emma E Blank
- University of Nebraska-Lincoln, Dept. of Biochemistry, 1901 Vine Street Lincoln NE 68588, USA
| | - Andrew W Egger
- University of Nebraska-Lincoln, Dept. of Biochemistry, 1901 Vine Street Lincoln NE 68588, USA
| | - Brianna M Kellar
- University of Nebraska-Lincoln, Dept. of Biochemistry, 1901 Vine Street Lincoln NE 68588, USA
| | | | - Punit P Seth
- Ionis Pharmaceuticals, 2855 Gazelle Ct, Carlsbad, CA 92010, USA
| | - Edward N Harris
- University of Nebraska-Lincoln, Dept. of Biochemistry, 1901 Vine Street Lincoln NE 68588, USA
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Palani S, Elima K, Ekholm E, Jalkanen S, Salmi M. Monocyte Stabilin-1 Suppresses the Activation of Th1 Lymphocytes. THE JOURNAL OF IMMUNOLOGY 2015; 196:115-23. [DOI: 10.4049/jimmunol.1500257] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2015] [Accepted: 10/28/2015] [Indexed: 01/11/2023]
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Buldakov M, Zavyalova M, Krakhmal N, Telegina N, Vtorushin S, Mitrofanova I, Riabov V, Yin S, Song B, Cherdyntseva N, Kzhyshkowska J. CD68+, but not stabilin-1+ tumor associated macrophages in gaps of ductal tumor structures negatively correlate with the lymphatic metastasis in human breast cancer. Immunobiology 2015; 222:31-38. [PMID: 26391151 DOI: 10.1016/j.imbio.2015.09.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 09/03/2015] [Accepted: 09/04/2015] [Indexed: 01/22/2023]
Abstract
Tumor associated macrophages (TAM) support tumor growth and metastasis in several animal models of breast cancer, and TAM amount is predictive for efficient tumor growth and metastatic spread via blood circulation. However, limited information is available about intratumoral TAM heterogeneity and functional role of TAM subpopulations in tumor progression. The aim of our study was to examine correlation of TAM presence in various morphological segments of human breast cancer with clinical parameters. Thirty six female patients with nonspecific invasive breast cancer T1-4N0-3M0 were included in the study. Morphological examination was performed using Carl Zeiss Axio Lab.A1 and MiraxMidiZeiss. Immunohistochemical and immunofluorescence/confocal microcopy analysis was used to detect CD68 and stabilin-1 in 5 different tumor segments: (1) areas with soft fibrous stroma; (2) areas with coarse fibrous stroma; (3) areas of maximum stromal-and-parenchymal relationship; (4) parenchymal elements; (5) gaps of ductal tumor structures. The highest expression of CD68 was in areas with soft fibrous stroma or areas of maximum stromal-and-parenchymal relationship (79%). The lowest expression of CD68 was in areas with coarse fiber stroma (23%). Inverse correlation of tumor size and expression of CD68 in gaps of tubular tumor structures was found (R=-0.67; p=0.02). In case of the lymph node metastases the average score of CD68 expression in ductal gaps tumor structures was lower (1.4±0.5) compared to negative lymph nodes case (3.1±1.0; F=10.9; p=0.007). Confocal microscopy identified 3 phenotypes of TAM: CD68+/stabilin-1-; CD68+/stabilin-1+ (over 50%); and CD68-/stabilin-1+. However, expression of stabilin-1 did not correlate with lymph node metastasis. We concluded, that increased amount of CD68+TAM in gaps of ductal tumor structures is protective against metastatic spread in regional lymph nodes.
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Affiliation(s)
- Mikhail Buldakov
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Tomsk Cancer Research Institute, Per. Kooperativny, 5, 634050 Tomsk, Russia
| | - Marina Zavyalova
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Tomsk Cancer Research Institute, Per. Kooperativny, 5, 634050 Tomsk, Russia; Siberian State Medical University, Moskovskiy Trakt, 2, 634050 Tomsk, Russia
| | - Nadezhda Krakhmal
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Siberian State Medical University, Moskovskiy Trakt, 2, 634050 Tomsk, Russia
| | - Nadezhda Telegina
- Siberian State Medical University, Moskovskiy Trakt, 2, 634050 Tomsk, Russia
| | - Sergei Vtorushin
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Siberian State Medical University, Moskovskiy Trakt, 2, 634050 Tomsk, Russia
| | - Irina Mitrofanova
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia
| | - Vladimir Riabov
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Department of Innate Immunity and Tolerance, Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Shuiping Yin
- Department of Innate Immunity and Tolerance, Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Bin Song
- Department of Innate Immunity and Tolerance, Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany
| | - Nadezhda Cherdyntseva
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Tomsk Cancer Research Institute, Per. Kooperativny, 5, 634050 Tomsk, Russia
| | - Julia Kzhyshkowska
- Laboratory for Translational Cellular and Molecular Biomedicine, Tomsk State University, Pr. Lenina, 36, 634050 Tomsk, Russia; Department of Innate Immunity and Tolerance, Institute of Transfusion Medicine and Immunology, Medical Faculty Mannheim, University of Heidelberg, Theodor-Kutzer-Ufer 1-3, 68167 Mannheim, Germany; German Red Cross Blood Service Baden-Württemberg-Hessen, Friedrich-Ebert Strasse 107, 68167 Mannheim, Germany.
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Gordon S, Plüddemann A, Martinez Estrada F. Macrophage heterogeneity in tissues: phenotypic diversity and functions. Immunol Rev 2015; 262:36-55. [PMID: 25319326 PMCID: PMC4231239 DOI: 10.1111/imr.12223] [Citation(s) in RCA: 493] [Impact Index Per Article: 54.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
During development and throughout adult life, macrophages derived from hematopoietic progenitors are seeded throughout the body, initially in the absence of inflammatory and infectious stimuli as tissue-resident cells, with enhanced recruitment, activation, and local proliferation following injury and pathologic insults. We have learned a great deal about macrophage properties ex vivo and in cell culture, but their phenotypic heterogeneity within different tissue microenvironments remains poorly characterized, although it contributes significantly to maintaining local and systemic homeostasis, pathogenesis, and possible treatment. In this review, we summarize the nature, functions, and interactions of tissue macrophage populations within their microenvironment and suggest questions for further investigation.
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Affiliation(s)
- Siamon Gordon
- Sir William Dunn School of Pathology, University of Oxford, Oxford, UK
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36
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Stankevich KS, Gudima A, Filimonov VD, Klüter H, Mamontova EM, Tverdokhlebov SI, Kzhyshkowska J. Surface modification of biomaterials based on high-molecular polylactic acid and their effect on inflammatory reactions of primary human monocyte-derived macrophages: Perspective for personalized therapy. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 51:117-26. [DOI: 10.1016/j.msec.2015.02.047] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/05/2014] [Revised: 01/21/2015] [Accepted: 02/24/2015] [Indexed: 11/30/2022]
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Fair T. The contribution of the maternal immune system to the establishment of pregnancy in cattle. Front Immunol 2015; 6:7. [PMID: 25674085 PMCID: PMC4309202 DOI: 10.3389/fimmu.2015.00007] [Citation(s) in RCA: 56] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2014] [Accepted: 01/07/2015] [Indexed: 11/13/2022] Open
Abstract
Immune cells play an integral role in affecting successful reproductive function. Indeed, disturbed or aberrant immune function has been identified as primary mechanisms behind infertility. In contrast to the extensive body of literature that exists for human and mouse, studies detailing the immunological interaction between the embryo and the maternal endometrium are quite few in cattle. Nevertheless, by reviewing the existing studies and extrapolating from sheep, pig, mouse, and human data, we can draw a reasonably comprehensive picture. Key contributions of immune cell populations include granulocyte involvement in follicle differentiation and gamete transfer, monocyte invasion of the peri-ovulatory follicle and their subsequent role in corpus luteum formation and the pivotal roles of maternal macrophage and dendritic cells in key steps of the establishment of pregnancy, particularly, the maternal immune response to the embryo. These contributions are reviewed in detail below and key findings are discussed.
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Affiliation(s)
- Trudee Fair
- School of Agriculture and Food Sciences, University College Dublin , Dublin , Ireland
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Karikoski M, Marttila-Ichihara F, Elima K, Rantakari P, Hollmén M, Kelkka T, Gerke H, Huovinen V, Irjala H, Holmdahl R, Salmi M, Jalkanen S. Clever-1/stabilin-1 controls cancer growth and metastasis. Clin Cancer Res 2014; 20:6452-64. [PMID: 25320356 DOI: 10.1158/1078-0432.ccr-14-1236] [Citation(s) in RCA: 65] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
PURPOSE Immunosuppressive leukocytes and vasculature are important host cell components regulating tumor progression. Clever-1/Stabilin-1, a multifunctional scavenger and adhesion receptor, is constitutively present on a subset of type II macrophages and lymphatic endothelium, but its functional role in cancer is unknown. EXPERIMENTAL DESIGN Here, we generated full Clever-1 knockout mice and cell-specific ones lacking Clever-1 either on macrophages or endothelium. We also used anti-Clever-1 antibody therapy to treat B16 melanoma and EL-4 lymphoma. RESULTS Clever-1-deficient mice had smaller primary and metastatic tumors than wild-type (WT) controls. Growth of primary tumors, but not of metastases, was attenuated also in mice lacking Clever-1 selectively in macrophages or in vascular endothelium. Anti-Clever-1 antibody treatment inhibited tumor progression in WT mice. Both genetically and therapeutically induced absence of functional Clever-1 led to diminished numbers of immunosuppressive leukocyte types in tumors. Functionally Clever-1 mediated binding of immunosuppressive leukocytes to the intratumoral blood vessels aberrantly expressing Clever-1, and tumor cell traffic via the lymphatics. The antibody therapy did not aggravate autoimmunity. CONCLUSION This work identifies Clever-1 in type II macrophages and in tumor vasculature as a new immunosuppressive molecule in cancer. Our finding that Clever-1 supports binding of tumor-infiltrating lymphocytes to tumor vasculature increases our understanding of leukocyte immigration to tumors. The ability of anti-Clever-1 antibody treatment to attenuate tumor progression in WT mice in vivo is therapeutically relevant. Thus, Clever-1 may be an emerging new target for modulating immune evasion and lymphatic spread in cancer.
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Affiliation(s)
- Marika Karikoski
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | | | - Kati Elima
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland. Department of Medical Biochemistry and Genetics, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Pia Rantakari
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland. Department of Physiology and Turku Center for Disease Modeling, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Maija Hollmén
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Tiina Kelkka
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Heidi Gerke
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Ville Huovinen
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Heikki Irjala
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland. Department of Otorhinolaryngology, Turku University Hospital, Turku, Finland
| | - Rikard Holmdahl
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Marko Salmi
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland. National Institute for Health and Welfare, Turku, Finland. Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland
| | - Sirpa Jalkanen
- MediCity Research Laboratory, Institute of Biomedicine, University of Turku, Turku, Finland. National Institute for Health and Welfare, Turku, Finland. Department of Medical Microbiology and Immunology, University of Turku, Turku, Finland.
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39
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Peter AT. Bovine placenta: A review on morphology, components, and defects from terminology and clinical perspectives. Theriogenology 2013; 80:693-705. [DOI: 10.1016/j.theriogenology.2013.06.004] [Citation(s) in RCA: 49] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2012] [Revised: 06/06/2013] [Accepted: 06/06/2013] [Indexed: 11/26/2022]
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Géraud C, Mogler C, Runge A, Evdokimov K, Lu S, Schledzewski K, Arnold B, Hämmerling G, Koch PS, Breuhahn K, Longerich T, Marx A, Weiss C, Damm F, Schmieder A, Schirmacher P, Augustin HG, Goerdt S. Endothelial transdifferentiation in hepatocellular carcinoma: loss of Stabilin-2 expression in peri-tumourous liver correlates with increased survival. Liver Int 2013; 33:1428-40. [PMID: 23870052 DOI: 10.1111/liv.12262] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2013] [Accepted: 06/15/2013] [Indexed: 02/13/2023]
Abstract
BACKGROUND & AIMS Hepatocellular carcinoma (HCC) is a malignant tumour that is characterized by extensive vascular remodelling and responsiveness to treatment with the anti-angiogenic multikinase inhibitor sorafenib. The aim was to study endothelial remodelling in HCC. METHODS The murine inducible albumin-SV40-large T-antigen model and two tissue microarrays (TMA) with 295 tumourous and 83 peri-tumourous samples of 296 patients with HCC were analysed for expression of liver sinusoidal endothelial cell (LSEC)-specific marker proteins, stabilin-1 and stabilin-2, LYVE-1 and CD32b. RESULTS LSEC marker proteins were sequentially lost during HCC progression in the murine HCC model being absent from tumour nodules larger than 800 μm in diameter. Similarly, the TMA analysis of human HCCs revealed loss of all four marker proteins in the majority of tumourous tissue samples. Preservation of LYVE-1 expression showed a significant correlation with low grading (G1). In corresponding peri-tumourous liver tissue, loss of all marker proteins was seen in a minor proportion of cases (34%) while the majority of cases retained expression of at least one of the marker proteins. Loss of stabilin-2 expression in peri-tumourous liver tissue of patients with HCC was significantly less likely to occur (38%) than loss of the other marker proteins (63-95%) and it was associated with significantly longer tumour-specific (P = 0.0523) and overall (P = 0.0338) survival. Loss of stabilin-2 may enhance survival in HCC by preventing endothelial-tumour cell adhesive interactions and microvascular invasion. CONCLUSIONS In summary, endothelial transdifferentiation is a major pathogenic event in HCC development indicating a switch from vessel co-option/intussusceptive angiogenesis to sprouting angiogenesis.
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Affiliation(s)
- Cyrill Géraud
- Department of Dermatology, Venereology and Allergology, University Medical Center and Medical Faculty Mannheim, Heidelberg University, and Center of Excellence in Dermatology, Mannheim, Germany
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41
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A second combinatorial immune receptor in monocytes/macrophages is based on the TCRγδ. Immunobiology 2012; 218:960-8. [PMID: 23312956 DOI: 10.1016/j.imbio.2012.11.005] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2012] [Accepted: 11/13/2012] [Indexed: 11/24/2022]
Abstract
Recent evidence indicates that monocytes and macrophages express T cell receptor (TCR)αβ-like combinatorial immune receptors. Here, we demonstrate the presence of a second recombinatorial immunoreceptor, which is structurally based on the TCR γ- and δ-chains, in human and murine monocytes and differentially activated macrophages (referred to here as TCRL(m)γδ). In vitro, infection of macrophages with mycobacteria and gram positive or gram negative bacteria induced expression of donor-specific and differential TCRL(m)Vδ repertoires indicating that the novel immunoreceptor represents a dynamic flexible host defense system that responds to bacterial challenge. In vivo, we find that TCRL(m)γδ bearing macrophages, which express highly restricted repertoires of the antigen-binding Vδ chain, accumulate in the cerebrospinal fluid in acute bacterial meningitis and in advanced lesions of atherosclerosis. These results identify an as yet unrecognized monocyte/macrophage subpopulation that bears combinatorial TCRL(m)γδ immune receptors, and is associated with both acute and chronic inflammatory diseases. Moreover, they indicate that the monocytic lineage uses the same bipartite system of TCRαβ/TCRγδ-based combinatorial immune receptors that is present in T cells. Our findings suggest specific roles of monocytes/macrophages in various inflammatory conditions and lend further evidence that flexible immune recognition in higher vertebrates operates on a broader cellular basis than previously thought.
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42
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Pempe EH, Xu Y, Gopalakrishnan S, Liu J, Harris EN. Probing structural selectivity of synthetic heparin binding to Stabilin protein receptors. J Biol Chem 2012; 287:20774-83. [PMID: 22547069 DOI: 10.1074/jbc.m111.320069] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
As one of the most widely used drugs worldwide, heparin is an essential anticoagulant required for surgery, dialysis, treatment of thrombosis, cancer, and general circulatory management. Stabilin-2 is a scavenger clearance receptor with high expression in the sinusoidal endothelium of liver. It is believed that Stabilin-2 is the primary receptor for the clearance of unfractionated and low molecular weight heparins in the liver. Here, we identify the modifications and length of the heparin polymer that are required for binding and endocytosis by both human Stabilin receptors: Stabilin-2 and its homolog Stabilin-1 (also found in liver endothelium). Using enzymatically synthesized (35)S-labeled heparan sulfate oligomers, we identified that sulfation of the 3-OH position of N-sulfated glucosamine (GlcNS) is the most beneficial modification for binding and endocytosis via both Stabilin receptors. In addition, our data suggest that a decasaccharide is the minimal size for binding to the Stabilin receptors. These findings define the physical parameters of the heparin structure required for efficient clearance from blood circulation. These results will also aid in the design of synthetic heparins with desired clearance rates.
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Affiliation(s)
- Elizabeth H Pempe
- Department of Biochemistry, University of Nebraska, Lincoln, Nebraska 68588, USA
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43
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Hirose Y, Saijou E, Sugano Y, Takeshita F, Nishimura S, Nonaka H, Chen YR, Sekine K, Kido T, Nakamura T, Kato S, Kanke T, Nakamura K, Nagai R, Ochiya T, Miyajima A. Inhibition of Stabilin-2 elevates circulating hyaluronic acid levels and prevents tumor metastasis. Proc Natl Acad Sci U S A 2012; 109:4263-8. [PMID: 22371575 PMCID: PMC3306694 DOI: 10.1073/pnas.1117560109] [Citation(s) in RCA: 77] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Hyaluronic acid (HA) has been implicated in the proliferation and metastasis of tumor cells. However, most previous studies were conducted on extracellular matrix or pericellular HA, and the role of circulating HA in vivo has not been studied. HA is rapidly cleared from the bloodstream. The scavenger receptor Stabilin-2 (Stab2) is considered a major clearance receptor for HA. Here we report a dramatic elevation in circulating HA levels in Stab2-deficient mice without any overt phenotype. Surprisingly, the metastasis of B16F10 melanoma cells to the lungs was markedly suppressed in the Stab2-deficient mice, whereas cell proliferation was not affected. Furthermore, administration of an anti-Stab2 antibody in Stab2(+) mice elevated serum HA levels and prevented the metastasis of melanoma to the lung, and also suppressed spontaneous metastasis of mammary tumor and human breast tumor cells inoculated in the mammary gland. Administration of the antibody or high-dose HA in mice blocked the lodging of melanoma cells to the lungs. Furthermore, HA at high concentrations inhibited the rolling/tethering of B16 cells to lung endothelial cells. These results suggest that blocking Stab2 function prevents tumor metastasis by elevating circulating HA levels. Stab2 may be a potential target in antitumor therapy.
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Affiliation(s)
| | - Eiko Saijou
- Laboratory of Cell Growth and Differentiation and
| | | | - Fumitaka Takeshita
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo 104-0045, Japan
| | - Satoshi Nishimura
- Department of Cardiovascular Medicine
- Translational Systems Biology and Medicine Initiative, and
| | | | | | | | | | - Takashi Nakamura
- Laboratory of Nuclear Signaling, Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | - Shigeaki Kato
- Laboratory of Nuclear Signaling, Institute of Molecular and Cellular Biosciences, University of Tokyo, Tokyo 113-0032, Japan
| | | | | | - Ryozo Nagai
- Department of Cardiovascular Medicine
- Translational Systems Biology and Medicine Initiative, and
- Global Center of Excellence Program, Comprehensive Center of Education and Research for Chemical Biology of the Diseases, University of Tokyo, Tokyo 113-8655, Japan; and
| | - Takahiro Ochiya
- Division of Molecular and Cellular Medicine, National Cancer Center Research Institute, Tokyo 104-0045, Japan
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Kzhyshkowska J, Neyen C, Gordon S. Role of macrophage scavenger receptors in atherosclerosis. Immunobiology 2012; 217:492-502. [PMID: 22437077 DOI: 10.1016/j.imbio.2012.02.015] [Citation(s) in RCA: 172] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2012] [Accepted: 02/19/2012] [Indexed: 12/22/2022]
Abstract
Accumulating evidence indicates that atherosclerosis is a chronic inflammatory disease. The key innate immune cells that are involved in the pathogenesis of atherosclerosis are circulating monocytes and plaque macrophages. Complex interplay between immune and metabolic processes results in pathological activity of these cells. The best understood pathological process mediated by macrophages is their inability to process modified lipoproteins properly resulting in the formation of foamy cells, which are a dangerous component of atherosclerotic plaques. Key molecules involved in the recognition and processing of modified lipoproteins are scavenger receptors (SR). This is a large family of surface expressed structurally heterogeneous receptors with a broad spectrum of endogenous and exogenous ligands. The common functional feature of SR is internalisation of extracellular components and targeting them for lysosomal degradation. However, these relatively simple functions can have complex consequences, since they are linked to diverse specific signalling pathways and to other membrane transport pathways. Moreover, scavenger receptors can co-operate with other types of receptors increasing the variability of the macrophage response to multiple extracellular ligands. At least some SRs respond to modified lipoproteins by amplification of inflammation and accumulation of macrophages in the plaque, while some SRs may support tolerogenic reactions. Outcome of different SR activities will be the decision of monocytes and macrophage to guard homeostatic balance, support atherosclerosis progression and plaque instability by inflammatory reactions, or support rapid fibrotic processes in the plaque that stabilise it. Despite the accumulating knowledge about the molecular mechanisms of scavenger receptor action, their role in the progression of atherosclerosis remains controversial. The activities of scavenger receptors that can contribute to each of these processes are a subject of current review.
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Affiliation(s)
- Julia Kzhyshkowska
- Department of Dermatology, Medical Faculty Mannheim, Ruprecht-Karls University of Heidelberg, Germany.
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45
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Popova A, Kzhyshkowska J, Nurgazieva D, Goerdt S, Gratchev A. Smurf2 regulates IL17RB by proteasomal degradation of its novel binding partner DAZAP2. Immunobiology 2012; 217:321-8. [DOI: 10.1016/j.imbio.2011.10.004] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2011] [Revised: 10/06/2011] [Accepted: 10/13/2011] [Indexed: 10/16/2022]
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Park SY, Bae DJ, Kim MJ, Piao ML, Kim IS. Extracellular low pH modulates phosphatidylserine-dependent phagocytosis in macrophages by increasing stabilin-1 expression. J Biol Chem 2012; 287:11261-71. [PMID: 22334667 DOI: 10.1074/jbc.m111.310953] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Microenvironmental acidosis is a common feature of inflammatory loci, in which clearance of apoptotic cells is necessary for the resolution of inflammation. Although it is known that a low pH environment affects immune function, its effect on apoptotic cell clearance by macrophages has not been fully investigated. Here, we show that treatment of macrophages with low pH medium resulted in increased expression of stabilin-1 out of several receptors, which are known to be involved in PS-dependent removal of apoptotic cells. Reporter assays showed that the -120/-1 region of the mouse stabilin-1 promoter was a low pH-responsive region and provided evidence that extracellular low pH mediated transcriptional activation of stabilin-1 via Ets-2. Furthermore, extracellular low pH activated JNK, thereby inducing translocation of Ets-2 into the nucleus. When macrophages were preincubated with low pH medium, phagocytosis of phosphatidylserine-exposed red blood cells and phosphatidylserine-coated beads by macrophages was enhanced. Blockade of stabilin-1 in macrophages abolished the enhancement of phagocytic activity by low pH. Thus, our results demonstrate that a low pH microenvironment up-regulates stabilin-1 expression in macrophages, thereby modulating the phagocytic capacity of macrophages, and suggest roles for stabilin-1 and Ets-2 in the maintenance of tissue homeostasis by the immune system.
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Affiliation(s)
- Seung-Yoon Park
- Department of Biochemistry and Cell Biology, Cell and Matrix Research Institute, School of Medicine, Kyungpook National University, Daegu, 700-422, Republic of Korea
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47
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McClung HM, Golembieski WA, Schultz CR, Jankowski M, Schultz LR, Rempel SA. Deletion of the SPARC acidic domain or EGF-like module reduces SPARC-induced migration and signaling through p38 MAPK/HSP27 in glioma. Carcinogenesis 2011; 33:275-84. [PMID: 22114076 DOI: 10.1093/carcin/bgr276] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
We previously demonstrated that secreted protein acidic and rich in cysteine (SPARC) increases heat shock protein 27 (HSP27) expression and phosphorylation and promotes glioma cell migration through the p38 mitogen-activated protein kinase (MAPK)/HSP27 signaling pathway. As different regions of the SPARC protein mediate different SPARC functions, elucidating which SPARC domains regulate HSP27 expression, signaling and migration might provide potential therapeutic strategies to target these functions. To investigate the roles of specific domains, we used an SPARC-green fluorescent protein (GFP) fusion protein and constructs of SPARC-GFP with deletions of either the acidic domain (ΔAcidic) or the epidermal growth factor (EGF)-like module (ΔEGF). GFP, SPARC-GFP and the two deletion mutants were expressed in U87MG glioma cells. Characterization of the derived stable clones by confocal imaging and western blotting suggests proper folding, processing and secretion of the deletion constructs. Uptake of the constructs by naive cells suggests enhanced internalization of ΔAcidic and reduced internalization of ΔEGF. Wound and transwell migration assays and western blot analysis confirm our previous results and indicate that ΔAcidic reduces SPARC-induced migration and p38 MAPK/HSP27 signaling and ΔEGF decreases SPARC-induced migration and dramatically decreases the expression and phosphorylation of HSP27 but is poorly internalized. Loss of the EGF-like module suppresses the enhanced HSP27 protein stability conferred by SPARC. In conclusion, deletions of the acidic domain and EGF-like module have differential effects on cell surface binding and HSP27 protein stability; however, both regions regulate SPARC-induced migration and signaling through HSP27. Our data link the domains of SPARC with different functions and suggest one or both of the constructs as potential therapeutic agents to inhibit SPARC-induced migration.
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Affiliation(s)
- Heather M McClung
- Hermelin Brain Tumor Center, Department of Neurosurgery, Henry Ford Hospital, Detroit, MI 48202, USA
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48
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Beham AW, Puellmann K, Laird R, Fuchs T, Streich R, Breysach C, Raddatz D, Oniga S, Peccerella T, Findeisen P, Kzhyshkowska J, Gratchev A, Schweyer S, Saunders B, Wessels JT, Möbius W, Keane J, Becker H, Ganser A, Neumaier M, Kaminski WE. A TNF-regulated recombinatorial macrophage immune receptor implicated in granuloma formation in tuberculosis. PLoS Pathog 2011; 7:e1002375. [PMID: 22114556 PMCID: PMC3219713 DOI: 10.1371/journal.ppat.1002375] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2011] [Accepted: 09/28/2011] [Indexed: 12/23/2022] Open
Abstract
Macrophages play a central role in host defense against mycobacterial infection and anti- TNF therapy is associated with granuloma disorganization and reactivation of tuberculosis in humans. Here, we provide evidence for the presence of a T cell receptor (TCR) αβ based recombinatorial immune receptor in subpopulations of human and mouse monocytes and macrophages. In vitro, we find that the macrophage-TCRαβ induces the release of CCL2 and modulates phagocytosis. TNF blockade suppresses macrophage-TCRαβ expression. Infection of macrophages from healthy individuals with mycobacteria triggers formation of clusters that express restricted TCR Vβ repertoires. In vivo, TCRαβ bearing macrophages abundantly accumulate at the inner host-pathogen contact zone of caseous granulomas from patients with lung tuberculosis. In chimeric mouse models, deletion of the variable macrophage-TCRαβ or TNF is associated with structurally compromised granulomas of pulmonary tuberculosis even in the presence of intact T cells. These results uncover a TNF-regulated recombinatorial immune receptor in monocytes/macrophages and demonstrate its implication in granuloma formation in tuberculosis.
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Affiliation(s)
| | - Kerstin Puellmann
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School (MHH), Hannover, Germany
| | - Rebecca Laird
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | - Tina Fuchs
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Roswita Streich
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | | | - Dirk Raddatz
- Department of Medicine, University of Göttingen, Göttingen, Germany
| | - Septimia Oniga
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Teresa Peccerella
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Peter Findeisen
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Julia Kzhyshkowska
- Department of Dermatology, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia
| | - Alexei Gratchev
- Department of Dermatology, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, Moscow, Russia
| | - Stefan Schweyer
- Department of Pathology, University of Göttingen, Göttingen, Germany
| | - Bernadette Saunders
- Medicine, Central Clinical School, Centenary Institute of Cancer Medicine and Cell Biology, Sydney, Australia
| | - Johannes T. Wessels
- Department of Nephrology/Rheumatology, University of Göttingen, Göttingen, Germany
| | - Wiebke Möbius
- Max-Planck-Institute of Experimental Medicine, Department of Neurogenetics, Göttingen, Germany
- Trinity College Dublin, Institute of Molecular Medicine, College Green, Dublin, Ireland
| | - Joseph Keane
- Trinity College Dublin, Institute of Molecular Medicine, College Green, Dublin, Ireland
| | - Heinz Becker
- Department of Surgery, University of Göttingen, Göttingen, Germany
| | - Arnold Ganser
- Department of Hematology, Hemostasis, Oncology and Stem Cell Transplantation, Hannover Medical School (MHH), Hannover, Germany
| | - Michael Neumaier
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
| | - Wolfgang E. Kaminski
- Institute for Clinical Chemistry, University of Heidelberg Medical Faculty Mannheim, Mannheim, Germany
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49
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Palani S, Maksimow M, Miiluniemi M, Auvinen K, Jalkanen S, Salmi M. Stabilin-1/CLEVER-1, a type 2 macrophage marker, is an adhesion and scavenging molecule on human placental macrophages. Eur J Immunol 2011; 41:2052-63. [PMID: 21480214 DOI: 10.1002/eji.201041376] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2010] [Revised: 03/21/2011] [Accepted: 04/04/2011] [Indexed: 01/06/2023]
Abstract
Stabilin-1/common lymphatic endothelial and vascular endothelial receptor-1 (CLEVER-1) is a multidomain protein present in lymphatic and vascular endothelial cells and type 2 immunosuppressive macrophages. In adults, stabilin-1/CLEVER-1 is a scavenging receptor and an adhesion molecule, but much less is known about its role during development. Here, we studied the expression and functions of macrophage stabilin-1/CLEVER-1 in human placenta and during human ontogeny. Using newly generated mAbs, we found that stabilin-1/CLEVER-1 is expressed on virtually all macrophages in term placenta, both in the decidua and in the placental villi. Placental stabilin-1/CLEVER-1 was involved in the scavenging of Ac-LDL (acetylated low density lipoprotein) and in the uptake of fluorescently labeled model antigen OVA. siRNA-mediated suppression of stabilin-1/CLEVER-1 altered the cytokine profile produced by placental macrophages. Stabilin-1/CLEVER-1 on placental macrophages mediated their adhesion to placental vessels and supported their transmigration through vascular endothelium. Finally, we found that stabilin-1/CLEVER-1 is induced very early in fetal macrophages, high endothelial venules, and lymphatic vessels in multiple lymphatic organs. Together, these data suggest that macrophage stabilin-1/CLEVER-1 can potentially regulate leukocyte migration and scavenging during the development of the placenta and fetus.
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Affiliation(s)
- Senthil Palani
- MediCity Research Laboratory, Department of Medical Biochemistry and Genetics, University of Turku, and National Institute of Health and Welfare, Turku, Finland
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50
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Schledzewski K, Géraud C, Arnold B, Wang S, Gröne HJ, Kempf T, Wollert KC, Straub BK, Schirmacher P, Demory A, Schönhaber H, Gratchev A, Dietz L, Thierse HJ, Kzhyshkowska J, Goerdt S. Deficiency of liver sinusoidal scavenger receptors stabilin-1 and -2 in mice causes glomerulofibrotic nephropathy via impaired hepatic clearance of noxious blood factors. J Clin Invest 2011; 121:703-14. [PMID: 21293057 DOI: 10.1172/jci44740] [Citation(s) in RCA: 115] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2010] [Accepted: 11/10/2010] [Indexed: 01/13/2023] Open
Abstract
Tissue homeostasis and remodeling are processes that involve high turnover of biological macromolecules. Many of the waste molecules that are by-products or degradation intermediates of biological macromolecule turnover enter the circulation and are subsequently cleared by liver sinusoidal endothelial cells (LSEC). Besides the mannose receptor, stabilin-1 and stabilin-2 are the major scavenger receptors expressed by LSEC. To more clearly elucidate the functions of stabilin-1 and -2, we have generated mice lacking stabilin-1, stabilin-2, or both stabilin-1 and -2 (Stab1–/– Stab2–/– mice). Mice lacking either stabilin-1 or stabilin-2 were phenotypically normal; however, Stab1–/– Stab2–/– mice exhibited premature mortality and developed severe glomerular fibrosis, while the liver showed only mild perisinusoidal fibrosis without dysfunction. Upon kidney transplantation into WT mice, progression of glomerular fibrosis was halted, indicating the presence of profibrotic factors in the circulation of Stab1–/– Stab2–/– mice. While plasma levels of known profibrotic cytokines were unaltered, clearance of the TGF-β family member growth differentiation factor 15 (GDF-15) was markedly impaired in Stab1–/– Stab2–/– mice but not in either Stab1–/– or Stab2–/– mice, indicating that it is a common ligand of both stabilin-1 and stabilin-2. These data lead us to conclude that stabilin-1 and -2 together guarantee proper hepatic clearance of potentially noxious agents in the blood and maintain tissue homeostasis not only in the liver but also distant organs.
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Affiliation(s)
- Kai Schledzewski
- Department of Dermatology, Venereology, and Allergology, University Medical Center and Medical Faculty Mannheim, University of Heidelberg, Mannheim, Germany
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