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Kaminska P, Tempes A, Scholz E, Malik AR. Cytokines on the way to secretion. Cytokine Growth Factor Rev 2024:S1359-6101(24)00063-7. [PMID: 39227243 DOI: 10.1016/j.cytogfr.2024.08.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2024] [Revised: 08/19/2024] [Accepted: 08/19/2024] [Indexed: 09/05/2024]
Abstract
The activation of immune cells by pro-inflammatory or immunosuppressive stimuli is followed by the secretion of immunoregulatory cytokines which serve as messengers to activate the immune response in target cells. Although the mechanisms that control the secretion of cytokines by immune cells are not yet fully understood, several key aspects of this process have recently emerged. This review focuses on cytokine release via exocytosis and highlights the routes of cytokine trafficking leading to constitutive and regulated secretion as well as the impact of sorting receptors on this process. We discuss the involvement of cytoskeletal rearrangements in vesicular transport, secretion, and formation of immunological synapses. Finally, we describe the non-classical pathways of cytokine release that are independent of vesicular ER-Golgi transport. Instead, these pathways are based on processing by inflammasome or autophagic mechanisms. Ultimately, understanding the molecular mechanisms behind cytokine release may help to identify potential therapeutic targets in diseases associated with altered immune responses.
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Affiliation(s)
- Paulina Kaminska
- Faculty of Biology, University of Warsaw, Miecznikowa 1, Warsaw 02-096, Poland; Nencki Institute of Experimental Biology, Polish Academy of Sciences, Pasteura 3, Warsaw 02-093, Poland
| | - Aleksandra Tempes
- Faculty of Biology, University of Warsaw, Miecznikowa 1, Warsaw 02-096, Poland
| | - Ela Scholz
- Faculty of Biology, University of Warsaw, Miecznikowa 1, Warsaw 02-096, Poland
| | - Anna R Malik
- Faculty of Biology, University of Warsaw, Miecznikowa 1, Warsaw 02-096, Poland.
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2
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Hubel E, Neumann A, Fishman S, Schaffer O, Erez N, Shrkihe BA, Shteingard Y, Gross T, Shibolet O, Varol C, Zvibel I. Sortilin in Biliary Epithelial Cells Promotes Ductular Reaction and Fibrosis during Cholestatic Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2024; 194:941-957. [PMID: 38493927 DOI: 10.1016/j.ajpath.2024.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 01/03/2024] [Accepted: 01/29/2024] [Indexed: 03/19/2024]
Abstract
Cholestatic injuries are accompanied by ductular reaction, initiated by proliferation and activation of biliary epithelial cells (BECs), leading to fibrosis. Sortilin (encoded by Sort1) facilitates IL-6 secretion and leukemia inhibitory factor (LIF) signaling. This study investigated the interplay between sortilin and IL-6 and LIF in cholestatic injury-induced ductular reaction, morphogenesis of new ducts, and fibrosis. Cholestatic injury was induced by bile duct ligation (BDL) in wild-type and Sort1-/- mice, with or without augmentation of IL-6 or LIF. Mice with BEC sortilin deficiency (hGFAPcre.Sort1fl/fl) and control mice were subjected to BDL and 3,5-diethoxycarbonyl-1,4-dihydrocollidine diet (DDC) induced cholestatic injury. Sort1-/- mice displayed reduced BEC proliferation and expression of BEC-reactive markers. Administration of LIF or IL-6 restored BEC proliferation in Sort1-/- mice, without affecting BEC-reactive or inflammatory markers. Sort1-/- mice also displayed impaired morphogenesis, which was corrected by LIF treatment. Similarly, hGFAPcre.Sort1fl/fl mice exhibited reduced BEC proliferation, but similar reactive and inflammatory marker expression. Serum IL-6 and LIF were comparable, yet liver pSTAT3 was reduced, indicating that sortilin is essential for co-activation of LIF receptor/gp130 signaling in BECs, but not for IL-6 secretion. hGFAPcre.Sortfl/fl mice displayed impaired morphogenesis and diminished fibrosis after BDL and DDC. In conclusion, sortilin-mediated engagement of LIF signaling in BECs promoted ductular reaction and morphogenesis during cholestatic injury. This study indicates that BEC sortilin is pivotal for the development of fibrosis.
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Affiliation(s)
- Einav Hubel
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Anat Neumann
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Sigal Fishman
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Ortal Schaffer
- Department of Pediatric Surgery, Assaf Harofe Hospital, Tzrifin, Israel
| | - Noam Erez
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Bander Abu Shrkihe
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Yuval Shteingard
- Department of Pathology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Tamar Gross
- Department of Immunology and Regenerative Biology, Weizmann Institute of Science, Rehovot, Israel
| | - Oren Shibolet
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel
| | - Chen Varol
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel; Department of Clinical Microbiology and Immunology, Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel.
| | - Isabel Zvibel
- The Research Center for Digestive Tract and Liver Diseases, Tel Aviv Sourasky Medical Center and Faculty of Medical and Health Sciences, Tel Aviv University, Tel Aviv, Israel.
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3
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Georgoula M, Ntavaroukas P, Androutsopoulou A, Xiromerisiou G, Kalala F, Speletas M, Asprodini E, Vasilaki A, Papoutsopoulou S. Sortilin Expression Levels and Peripheral Immunity: A Potential Biomarker for Segregation between Parkinson's Disease Patients and Healthy Controls. Int J Mol Sci 2024; 25:1791. [PMID: 38339069 PMCID: PMC10855941 DOI: 10.3390/ijms25031791] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2023] [Revised: 01/27/2024] [Accepted: 01/29/2024] [Indexed: 02/12/2024] Open
Abstract
Parkinson's disease (PD) is characterized by substantial phenotypic heterogeneity that limits the disease prognosis and patient's counseling, and complicates the design of further clinical trials. There is an unmet need for the development and validation of biomarkers for the prediction of the disease course. In this study, we utilized flow cytometry and in vitro approaches on peripheral blood cells and isolated peripheral blood mononuclear cell (PBMC)-derived macrophages to characterize specific innate immune populations in PD patients versus healthy donors. We found a significantly lower percentage of B lymphocytes and monocyte populations in PD patients. Monocytes in PD patients were characterized by a higher CD40 expression and on-surface expression of the type I membrane glycoprotein sortilin, which showed a trend of negative correlation with the age of the patients. These results were further investigated in vitro on PBMC-derived macrophages, which, in PD patients, showed higher sortilin expression levels compared to cells from healthy donors. The treatment of PD-derived macrophages with oxLDL led to higher foam cell formation compared to healthy donors. In conclusion, our results support the hypothesis that surface sortilin expression levels on human peripheral monocytes may potentially be utilized as a marker of Parkinson's disease and may segregate the sporadic versus the genetically induced forms of the disease.
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Affiliation(s)
- Maria Georgoula
- Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.G.); (P.N.); (A.A.)
| | - Panagiotis Ntavaroukas
- Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.G.); (P.N.); (A.A.)
| | - Anastasia Androutsopoulou
- Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.G.); (P.N.); (A.A.)
| | | | - Fani Kalala
- Laboratory of of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (F.K.); (M.S.)
| | - Matthaios Speletas
- Laboratory of of Immunology & Histocompatibility, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece; (F.K.); (M.S.)
| | - Eftihia Asprodini
- Laboratory of Clinical Pharmacology, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece;
| | - Anna Vasilaki
- Laboratory of Pharmacology, Faculty of Medicine, University of Thessaly, 41500 Larissa, Greece;
| | - Stamatia Papoutsopoulou
- Department of Biochemistry & Biotechnology, University of Thessaly, 41500 Larissa, Greece; (M.G.); (P.N.); (A.A.)
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4
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Berger K, Persson E, Gregersson P, Ruiz-Martínez S, Jonasson E, Ståhlberg A, Rhost S, Landberg G. Interleukin-6 Induces Stem Cell Propagation through Liaison with the Sortilin-Progranulin Axis in Breast Cancer. Cancers (Basel) 2023; 15:5757. [PMID: 38136303 PMCID: PMC10741783 DOI: 10.3390/cancers15245757] [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: 08/11/2023] [Revised: 10/25/2023] [Accepted: 12/06/2023] [Indexed: 12/24/2023] Open
Abstract
Unraveling the complex network between cancer cells and their tumor microenvironment is of clinical importance, as it might allow for the identification of new targets for cancer treatment. Cytokines and growth factors secreted by various cell types present in the tumor microenvironment have the potential to affect the challenging subpopulation of cancer stem cells showing treatment-resistant properties as well as aggressive features. By using various model systems, we investigated how the breast cancer stem cell-initiating growth factor progranulin influenced the secretion of cancer-associated proteins. In monolayer cultures, progranulin induced secretion of several inflammatory-related cytokines, such as interleukin (IL)-6 and -8, in a sortilin-dependent manner. Further, IL-6 increased the cancer stem fraction similarly to progranulin in the breast cancer cell lines MCF7 and MDA-MB-231 monitored by the surrogate mammosphere-forming assay. In a cohort of 63 patient-derived scaffold cultures cultured with breast cancer cells, we observed significant correlations between IL-6 and progranulin secretion, clearly validating the association between IL-6 and progranulin also in human-based microenvironments. In conclusion, the interplay between progranulin and IL-6 highlights a dual breast cancer stem cell-promoting function via sortilin, further supporting sortilin as a highly relevant therapeutic target for aggressive breast cancer.
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Affiliation(s)
- Karoline Berger
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Emma Persson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Pernilla Gregersson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Santiago Ruiz-Martínez
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Emma Jonasson
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Anders Ståhlberg
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
- Wallenberg Center for Molecular and Translational Medicine, University of Gothenburg, 41390 Gothenburg, Sweden
- Department of Clinical Genetics and Genomics, Sahlgrenska University Hospital, 41346 Gothenburg, Sweden
| | - Sara Rhost
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
| | - Göran Landberg
- Department of Laboratory Medicine, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, 40530 Gothenburg, Sweden; (K.B.); (E.P.); (P.G.); (S.R.-M.); (E.J.); (A.S.); (S.R.)
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Abstract
Alzheimer's disease (AD) is a genetically complex and heterogeneous disorder with multifaceted neuropathological features, including β-amyloid plaques, neurofibrillary tangles, and neuroinflammation. Over the past decade, emerging evidence has implicated both beneficial and pathological roles for innate immune genes and immune cells, including peripheral immune cells such as T cells, which can infiltrate the brain and either ameliorate or exacerbate AD neuropathogenesis. These findings support a neuroimmune axis of AD, in which the interplay of adaptive and innate immune systems inside and outside the brain critically impacts the etiology and pathogenesis of AD. In this review, we discuss the complexities of AD neuropathology at the levels of genetics and cellular physiology, highlighting immune signaling pathways and genes associated with AD risk and interactions among both innate and adaptive immune cells in the AD brain. We emphasize the role of peripheral immune cells in AD and the mechanisms by which immune cells, such as T cells and monocytes, influence AD neuropathology, including microglial clearance of amyloid-β peptide, the key component of β-amyloid plaque cores, pro-inflammatory and cytotoxic activity of microglia, astrogliosis, and their interactions with the brain vasculature. Finally, we review the challenges and outlook for establishing immune-based therapies for treating and preventing AD.
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Weimershaus M, Carvalho C, Rignault R, Waeckel-Enee E, Dussiot M, van Endert P, Maciel TT, Hermine O. Mast cell-mediated inflammation relies on insulin-regulated aminopeptidase controlling cytokine export from the Golgi. J Allergy Clin Immunol 2023:S0091-6749(23)00090-8. [PMID: 36708814 DOI: 10.1016/j.jaci.2023.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 12/31/2022] [Accepted: 01/11/2023] [Indexed: 01/26/2023]
Abstract
BACKGROUND On activation, mast cells rapidly release preformed inflammatory mediators from large cytoplasmic granules via regulated exocytosis. This acute degranulation is followed by a late activation phase involving synthesis and secretion of cytokines, growth factors, and other inflammatory molecules via the constitutive pathway that remains ill defined. OBJECTIVE We investigated the role for an insulin-responsive vesicle-like endosomal compartment, marked by insulin-regulated aminopeptidase (IRAP), in the secretion of TNF-α and IL-6 in mast cells and macrophages. METHODS Murine knockout (KO) mouse models (IRAP-KO and kit-Wsh/sh) were used to study inflammatory disease models and to measure and mechanistically investigate cytokine secretion and degranulation in bone marrow-derived mast cells in vitro. RESULTS IRAP-KO mice are protected from TNF-α-dependent kidney injury and inflammatory arthritis. In the absence of IRAP, TNF-α and IL-6 but not IL-10 fail to be efficiently secreted. Moreover, chemical targeting of IRAP endosomes reduced proinflammatory cytokine secretion. Mechanistically, impaired TNF-α export from the Golgi and reduced colocalization of vesicle-associated membrane protein (VAMP) 3-positive TNF-α transport vesicles with syntaxin 4 (aka Stx4) was observed in IRAP-KO mast cells, while VAMP8-dependent exocytosis of secretory granules was facilitated. CONCLUSION IRAP plays a novel role in mast cell-mediated inflammation through the regulation of exocytic trafficking of cytokines.
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Affiliation(s)
- Mirjana Weimershaus
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France.
| | - Caroline Carvalho
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France
| | - Rachel Rignault
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France; Université de Paris Cité, Paris, France
| | | | - Michael Dussiot
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France; Université de Paris Cité, Paris, France; Laboratory of Excellence GR-Ex, Paris, France
| | - Peter van Endert
- INSERM UMR 1151, CNRS UMR 8253, Paris, France; Université de Paris Cité, Paris, France
| | - Thiago Trovati Maciel
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France; Laboratory of Excellence GR-Ex, Paris, France
| | - Olivier Hermine
- Imagine Institute, Laboratory of Cellular and Molecular Mechanisms of Hematological Disorders and Therapeutic Implications, INSERM U1163, F-75015, Paris, France; Université de Paris Cité, Paris, France; Hôpital Necker Enfants Malades, Paris, France; Laboratory of Excellence GR-Ex, Paris, France
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7
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Li Q, Hu YZ, Gao S, Wang PF, Hu ZL, Dai RP. ProBDNF and its receptors in immune-mediated inflammatory diseases: novel insights into the regulation of metabolism and mitochondria. Front Immunol 2023; 14:1155333. [PMID: 37143663 PMCID: PMC10151479 DOI: 10.3389/fimmu.2023.1155333] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Accepted: 03/28/2023] [Indexed: 05/06/2023] Open
Abstract
Immune-mediated inflammatory diseases (IMIDs) consist of a common and clinically diverse group of diseases. Despite remarkable progress in the past two decades, no remission is observed in a large number of patients, and no effective treatments have been developed to prevent organ and tissue damage. Brain-derived neurotrophic factor precursor (proBDNF) and receptors, such as p75 neurotrophin receptor (p75NTR) and sortilin, have been proposed to mediate intracellular metabolism and mitochondrial function to regulate the progression of several IMIDs. Here, the regulatory role of proBDNF and its receptors in seven typical IMIDs, including multiple sclerosis, rheumatoid arthritis, systemic lupus erythematosus, allergic asthma, type I diabetes, vasculitis, and inflammatory bowel diseases, was investigated.
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Affiliation(s)
- Qiao Li
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Anesthesia Medical Research Center, Central South University, Changsha, Hunan, China
| | - Yue-Zi Hu
- Clinical Laboratory, The Second Hospital of Hunan University of Chinese Medicine, Changsha, Hunan, China
| | - Shan Gao
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Anesthesia Medical Research Center, Central South University, Changsha, Hunan, China
| | - Peng-Fei Wang
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Anesthesia Medical Research Center, Central South University, Changsha, Hunan, China
| | - Zhao-Lan Hu
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Anesthesia Medical Research Center, Central South University, Changsha, Hunan, China
- *Correspondence: Ru-Ping Dai, ; Zhao-Lan Hu,
| | - Ru-Ping Dai
- Department of Anesthesiology, The Second Xiangya Hospital, Central South University, Changsha, Hunan, China
- Anesthesia Medical Research Center, Central South University, Changsha, Hunan, China
- *Correspondence: Ru-Ping Dai, ; Zhao-Lan Hu,
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8
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Mitok KA, Keller MP, Attie AD. Sorting through the extensive and confusing roles of sortilin in metabolic disease. J Lipid Res 2022; 63:100243. [PMID: 35724703 PMCID: PMC9356209 DOI: 10.1016/j.jlr.2022.100243] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 06/10/2022] [Accepted: 06/13/2022] [Indexed: 01/06/2023] Open
Abstract
Sortilin is a post-Golgi trafficking receptor homologous to the yeast vacuolar protein sorting receptor 10 (VPS10). The VPS10 motif on sortilin is a 10-bladed β-propeller structure capable of binding more than 50 proteins, covering a wide range of biological functions including lipid and lipoprotein metabolism, neuronal growth and death, inflammation, and lysosomal degradation. Sortilin has a complex cellular trafficking itinerary, where it functions as a receptor in the trans-Golgi network, endosomes, secretory vesicles, multivesicular bodies, and at the cell surface. In addition, sortilin is associated with hypercholesterolemia, Alzheimer's disease, prion diseases, Parkinson's disease, and inflammation syndromes. The 1p13.3 locus containing SORT1, the gene encoding sortilin, carries the strongest association with LDL-C of all loci in human genome-wide association studies. However, the mechanism by which sortilin influences LDL-C is unclear. Here, we review the role sortilin plays in cardiovascular and metabolic diseases and describe in detail the large and often contradictory literature on the role of sortilin in the regulation of LDL-C levels.
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Affiliation(s)
- Kelly A Mitok
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Mark P Keller
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA
| | - Alan D Attie
- Department of Biochemistry, University of Wisconsin-Madison, Madison, WI, USA.
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9
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Herda S, Heimann A, Obermayer B, Ciraolo E, Althoff S, Ruß J, Grunert C, Busse A, Bullinger L, Pezzutto A, Blankenstein T, Beule D, Na IK. Long-term in vitro expansion ensures increased yield of central memory T cells as perspective for manufacturing challenges. Int J Cancer 2021; 148:3097-3110. [PMID: 33600609 DOI: 10.1002/ijc.33523] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Revised: 01/15/2021] [Accepted: 01/27/2021] [Indexed: 11/07/2022]
Abstract
Adoptive T cell therapy (ATT) has revolutionized the treatment of cancer patients. A sufficient number of functional T cells are indispensable for ATT efficacy; however, several ATT dropouts have been reported due to T cell expansion failure or lack of T cell persistence in vivo. With the aim of providing ATT also to those patients experiencing insufficient T cell manufacturing via standard protocol, we evaluated if minimally manipulative prolongation of in vitro expansion (long-term [LT] >3 weeks with IL-7 and IL-15 cytokines) could result in enhanced T cell yield with preserved T cell functionality. The extended expansion resulted in a 39-fold increase of murine CD8+ T central memory cells (Tcm). LT expanded CD8+ and CD4+ Tcm cells retained a gene expression profile related to Tcm and T memory stem cells (Tscm). In vivo transfer of LT expanded Tcm revealed persistence and antitumor capacity. We confirmed our in vitro findings on human T cells, on healthy donors and diffuse large B cell lymphoma patients, undergoing salvage therapy. Our study demonstrates the feasibility of an extended T cell expansion as a practicable alternative for patients with insufficient numbers of T cells after the standard manufacturing process thereby increasing ATT accessibility.
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Affiliation(s)
- Stefanie Herda
- Experimental and Clinical Research Center, Berlin, Germany
| | - Andreas Heimann
- Experimental and Clinical Research Center, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany
| | - Benedikt Obermayer
- Core Unit Bioinformatics - CUBI, Berlin Institute of Health, Berlin, Germany
| | - Elisa Ciraolo
- Experimental and Clinical Research Center, Berlin, Germany
| | | | - Josefine Ruß
- Experimental and Clinical Research Center, Berlin, Germany
| | | | - Antonia Busse
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Lars Bullinger
- Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Antonio Pezzutto
- Berlin Institute of Health, Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany.,Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany
| | - Thomas Blankenstein
- Berlin Institute of Health, Berlin, Germany.,Max-Delbrück-Center for Molecular Medicine, Berlin, Germany.,Institute of Immunology, Charité, Campus Berlin Buch, Berlin, Germany
| | - Dieter Beule
- Core Unit Bioinformatics - CUBI, Berlin Institute of Health, Berlin, Germany
| | - Il-Kang Na
- Experimental and Clinical Research Center, Berlin, Germany.,Berlin Institute of Health, Berlin, Germany.,Department of Hematology, Oncology and Tumor Immunology, Charité-Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany.,Berlin Institute of Health Center for Regenerative Therapies, Charité - Universitätsmedizin Berlin, Berlin, Germany
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10
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Li R, Guo C, Lin X, Chan TF, Lai KP, Chen J. Integrative omics analyses uncover the mechanism underlying the immunotoxicity of perfluorooctanesulfonate in human lymphocytes. CHEMOSPHERE 2020; 256:127062. [PMID: 32434090 DOI: 10.1016/j.chemosphere.2020.127062] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2020] [Revised: 05/11/2020] [Accepted: 05/11/2020] [Indexed: 06/11/2023]
Abstract
Perfluorooctanesulfonate (PFOS) is a man-made chemical widely used in industrial products. Due to its high persistence, PFOS has been detected in most animal species including the human population, wild animals, and aquatic organisms. Both cross-sectional studies and laboratory animal studies have shown hepatotoxicity, renal toxicity, and reproductive toxicity caused by PFOS exposure. Recently, a limited number of PFOS studies have raised concerns about its potential immune system effects. However, the molecular mechanism underlying the immunotoxicity of PFOS remains unknown. In this study, we used primary human lymphocytes as a model, together with integrative omics analyses, including the transcriptome and lipidome, and bioinformatics analysis, to resolve the immune toxicity effects of PFOS. Our results demonstrated that PFOS could alter the production of interleukins in human lymphocytes. Additionally, PFOS exposure could dysregulate clusters of genes and lipids that play important roles in immune functions, such as lymphocyte differentiation, inflammatory response, and immune response. The findings of this study offer novel insight into the molecular mechanisms underlying the immunotoxicity of PFOS, and open the potential of using the identified PFOS-responsive genes and lipids as biomarkers for risk assessment.
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Affiliation(s)
- Rong Li
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, 541004, PR China
| | - Chao Guo
- Department of Pharmacy, Guigang City People's Hospital, The Eighth Affiliated Hospital of Guangxi Medical University, Guigang, Guangxi, PR China
| | - Xiao Lin
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Ting Fung Chan
- School of Life Sciences, Hong Kong Bioinformatics Centre, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Keng Po Lai
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, 541004, PR China; Department of Chemistry, City University of Hong Kong, Hong Kong SAR, China.
| | - Jian Chen
- Guangxi Key Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, 541004, PR China.
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11
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Biscetti F, Nardella E, Rando MM, Cecchini AL, Bonadia N, Bruno P, Angelini F, Di Stasi C, Contegiacomo A, Santoliquido A, Pitocco D, Landolfi R, Flex A. Sortilin levels correlate with major cardiovascular events of diabetic patients with peripheral artery disease following revascularization: a prospective study. Cardiovasc Diabetol 2020; 19:147. [PMID: 32977814 PMCID: PMC7519536 DOI: 10.1186/s12933-020-01123-3] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/26/2020] [Accepted: 09/12/2020] [Indexed: 12/24/2022] Open
Abstract
Background Peripheral artery disease (PAD) represents one of the most relevant vascular complications of type 2 diabetes mellitus (T2DM). Moreover, T2DM patients suffering from PAD have an increased risk of major adverse cardiovascular events (MACE) and major adverse limb events (MALE). Sortilin, a protein involved in apolipoproteins trafficking, is associated with lower limb PAD in T2DM patients. Objective To evaluate the relationship between baseline serum levels of sortilin, MACE and MALE occurrence after revascularization of T2DM patients with PAD and chronic limb-threatening ischemia (CLTI). Research design and methods We performed a prospective non-randomized study including 230 statin-free T2DM patients with PAD and CLTI. Sortilin levels were measured before the endovascular intervention and incident outcomes were assessed during a 12 month follow-up. Results Sortilin levels were significantly increased in individuals with more aggressive PAD (2.25 ± 0.51 ng/mL vs 1.44 ± 0.47 ng/mL, p < 0.001). During follow-up, 83 MACE and 116 MALE occurred. In patients, who then developed MACE and MALE, sortilin was higher. In particular, 2.46 ± 0.53 ng/mL vs 1.55 ± 0.42 ng/mL, p < 0.001 for MACE and 2.10 ± 0.54 ng/mL vs 1.65 ± 0.65 ng/mL, p < 0.001 for MALE. After adjusting for traditional atherosclerosis risk factors, the association between sortilin and vascular outcomes remained significant in a multivariate analysis. In our receiver operating characteristics (ROC) curve analysis using sortilin levels the prediction of MACE incidence improved (area under the curve [AUC] = 0.94) and MALE (AUC = 0.72). Conclusions This study demonstrates that sortilin correlates with incidence of MACE and MALE after endovascular revascularization in a diabetic population with PAD and CLTI.
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Affiliation(s)
- Federico Biscetti
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia. .,Internal Medicine and Vascular Diseases Unit, Roma, Italia. .,Laboratory of Vascular Biology and Genetics, Department of Translational Medicine and Surgery, Roma, Italia.
| | | | | | | | - Nicola Bonadia
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Emergency Medicine, Roma, Italia
| | - Piergiorgio Bruno
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Cardiac Surgery Unit, Roma, Italia
| | - Flavia Angelini
- Laboratory of Vascular Biology and Genetics, Department of Translational Medicine and Surgery, Roma, Italia
| | | | | | - Angelo Santoliquido
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia.,Angiology Unit, Roma, Italia
| | - Dario Pitocco
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia.,Diabetology Unit, Roma, Italia
| | - Raffaele Landolfi
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Internal Medicine and Vascular Diseases Unit, Roma, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia
| | - Andrea Flex
- Department of Internal Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo Agostino Gemelli 8, Roma, 00168, Italia.,Internal Medicine and Vascular Diseases Unit, Roma, Italia.,Laboratory of Vascular Biology and Genetics, Department of Translational Medicine and Surgery, Roma, Italia.,Università Cattolica del Sacro Cuore, Roma, Italia
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12
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Ouyang S, Jia B, Xie W, Yang J, Lv Y. Mechanism underlying the regulation of sortilin expression and its trafficking function. J Cell Physiol 2020; 235:8958-8971. [PMID: 32474917 DOI: 10.1002/jcp.29818] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2020] [Revised: 05/08/2020] [Accepted: 05/12/2020] [Indexed: 12/16/2022]
Abstract
This review summarizes and analyzes the updated information on the regulation of sortilin expression and its trafficking function. Evidence indicates that the expression and function of sortilin are closely regulated at four levels: DNA, messenger RNA (mRNA), protein, and trafficking function. DNA methylation, several mutations, and minor single-nucleotide polymorphisms within DNA fragments affect the expression of SORT1 gene. A few transcription factors and microRNAs modulate its transcription as well as the splicing or stability of the mRNA. Moreover, several translation factors control the synthesis of sortilin protein, and posttranslational modifications affect its degradation processes. Multiple adaptor molecules modulate the sortilin trafficking function in the anterograde or retrograde pathway. Recent advances in the regulation of sortilin expression and function, and its related mechanisms will help the ongoing research related to sortilin and promote future clinical application via sortilin intervention.
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Affiliation(s)
- Shuhui Ouyang
- Department of Anatomy, Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, China
| | - Bo Jia
- Department of Anatomy, Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, China
| | - Wei Xie
- Department of Anatomy, Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, China
| | - Jing Yang
- Department of Endocrinology of the First Affiliated Hospital, Hengyang Medical College, University of South China, Hengyang, China
| | - Yuncheng Lv
- Department of Anatomy, Clinical Anatomy & Reproductive Medicine Application Institute, Hengyang Medical College, University of South China, Hengyang, China.,Guangxi Key Laboratory of Diabetic Systems Medicine, Faculty of Basic Medical Sciences, Guilin Medical University, Guilin, China
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13
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Yabe-Wada T, Philpott CC, Onai N. PCBP2 post-transcriptionally regulates sortilin expression by binding to a C-rich element in its 3' UTR. FEBS Open Bio 2020; 10:407-413. [PMID: 31961070 PMCID: PMC7050257 DOI: 10.1002/2211-5463.12794] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/24/2019] [Accepted: 01/16/2020] [Indexed: 12/22/2022] Open
Abstract
Post‐transcriptional regulation of cytokine production is crucial to ensure appropriate immune responses. We previously demonstrated that poly‐rC‐binding protein‐1 (PCBP1) can act as a trans‐acting factor to stabilize transcripts encoding sortilin, which mediates cytokine trafficking. Here, we report that PCBP2, which strongly resembles PCBP1, can stabilize sortilin transcripts in macrophages using the same mechanism employed by PCBP1. PCBP2 recognized the C‐rich element in the 3′ UTR of sortilin mRNA, and PCBP2 knockdown decreased sortilin transcripts, indicating that PCBP2 stabilizes sortilin mRNA by binding to its 3′ UTR. Zn2+ reversibly inhibited the nucleotide binding ability of PCBP2 in vitro. These findings suggest that both PCBP2 and PCBP1 may control the stability of sortilin transcripts by sensing intracellular Zn2+ levels in immune cells.
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Affiliation(s)
- Toshiki Yabe-Wada
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Japan.,Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Caroline C Philpott
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD, USA
| | - Nobuyuki Onai
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Japan
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14
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PAK Kinases Target Sortilin and Modulate Its Sorting. Mol Cell Biol 2020; 40:MCB.00411-19. [PMID: 31767632 PMCID: PMC6965034 DOI: 10.1128/mcb.00411-19] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2019] [Accepted: 10/24/2019] [Indexed: 12/31/2022] Open
Abstract
The multifunctional type 1 receptor sortilin is involved in endocytosis and intracellular transport of ligands. The short intracellular domain of sortilin binds several cytoplasmic adaptor proteins (e.g., the AP-1 complex and GGA1 to -3), most of which target two well-defined motifs: a C-terminal acidic cluster dileucine motif and a YXXΦ motif in the proximal third of the domain. Both motifs contribute to endocytosis as well as Golgi-endosome trafficking of sortilin. The multifunctional type 1 receptor sortilin is involved in endocytosis and intracellular transport of ligands. The short intracellular domain of sortilin binds several cytoplasmic adaptor proteins (e.g., the AP-1 complex and GGA1 to -3), most of which target two well-defined motifs: a C-terminal acidic cluster dileucine motif and a YXXΦ motif in the proximal third of the domain. Both motifs contribute to endocytosis as well as Golgi-endosome trafficking of sortilin. The C-terminal acidic cluster harbors a serine residue, which is subject to phosphorylation by casein kinase. Phosphorylation of this serine residue is known to modulate adaptor binding to sortilin. Here, we show that the cytoplasmic domain of sortilin also engages Rac-p21-activated kinases 1 to 3 (PAK1-3) via a binding segment that includes a tyrosine-based motif, also encompassing a serine residue. We further demonstrate that PAK1-3 specifically phosphorylate this serine residue and that this phosphorylation alters the affinity for AP-1 binding and consequently changes the intracellular localization of sortilin as a result of modulated trafficking. Our findings suggest that trafficking of ligands bound to sortilin is in part regulated by group A PAK kinases, which are downstream effectors of Rho GTPases and are known to affect a variety of processes by remodeling the cytoskeleton and by promoting gene transcription and cell survival.
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15
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Malik AR, Lips J, Gorniak-Walas M, Broekaart DWM, Asaro A, Kuffner MTC, Hoffmann CJ, Kikhia M, Dopatka M, Boehm-Sturm P, Mueller S, Dirnagl U, Aronica E, Harms C, Willnow TE. SorCS2 facilitates release of endostatin from astrocytes and controls post-stroke angiogenesis. Glia 2020; 68:1304-1316. [PMID: 31898841 DOI: 10.1002/glia.23778] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2019] [Revised: 12/17/2019] [Accepted: 12/19/2019] [Indexed: 01/26/2023]
Abstract
SorCS2 is an intracellular sorting receptor of the VPS10P domain receptor gene family recently implicated in oxidative stress response. Here, we interrogated the relevance of stress-related activities of SorCS2 in the brain by exploring its role in ischemic stroke in mouse models and in patients. Although primarily seen in neurons in the healthy brain, expression of SorCS2 was massively induced in astrocytes surrounding the ischemic core in mice following stroke. Post-stroke induction was likely a result of increased levels of transforming growth factor β1 in damaged brain tissue, inducing Sorcs2 gene transcription in astrocytes but not neurons. Induced astrocytic expression of SorCS2 was also seen in stroke patients, substantiating the clinical relevance of this observation. In astrocytes in vitro and in the mouse brain in vivo, SorCS2 specifically controlled release of endostatin, a factor linked to post-stroke angiogenesis. The ability of astrocytes to release endostatin acutely after stroke was lost in mice deficient for SorCS2, resulting in a blunted endostatin response which coincided with impaired vascularization of the ischemic brain. Our findings identified activated astrocytes as a source for endostatin in modulation of post-stroke angiogenesis, and the importance of the sorting receptor SorCS2 in this brain stress response.
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Affiliation(s)
- Anna R Malik
- Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany.,Nencki Institute of Experimental Biology, Polish Academy of Sciences, Warsaw, Poland
| | - Janet Lips
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Berlin Institute of Health, QUEST Centre for Transforming Biomedical Research, Berlin, Germany
| | | | - Diede W M Broekaart
- Amsterdam UMC, University of Amsterdam, Department of (Neuro) Pathology, Amsterdam Neuroscience, Amsterdam, the Netherlands
| | - Antonino Asaro
- Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany
| | - Melanie T C Kuffner
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany
| | - Christian J Hoffmann
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany
| | - Majed Kikhia
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Einstein Center for Neurosciences Berlin, Berlin, Germany
| | - Monika Dopatka
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany
| | - Philipp Boehm-Sturm
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Charité Core Facility 7T Experimental MRIs, Berlin, Germany
| | - Susanne Mueller
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Charité Core Facility 7T Experimental MRIs, Berlin, Germany
| | - Ulrich Dirnagl
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Berlin Institute of Health, QUEST Centre for Transforming Biomedical Research, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Einstein Center for Neurosciences Berlin, Berlin, Germany.,German Centre for Neurodegenerative Diseases, Berlin, Germany
| | - Eleonora Aronica
- Amsterdam UMC, University of Amsterdam, Department of (Neuro) Pathology, Amsterdam Neuroscience, Amsterdam, the Netherlands.,Stichting Epilepsie Instellingen Nederland (SEIN), Heemstede, The Netherlands
| | - Christoph Harms
- Department of Experimental Neurology, Charité-Universitätsmedizin Berlin and Berlin Institute of Health, Neurocure Cluster of Excellence, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Center for Stroke Research Berlin, Berlin, Germany.,Berlin Institute of Health, QUEST Centre for Transforming Biomedical Research, Berlin, Germany.,Charité-Universitätsmedizin Berlin, Einstein Center for Neurosciences Berlin, Berlin, Germany
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16
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Huang A, Shinde PV, Huang J, Senff T, Xu HC, Margotta C, Häussinger D, Willnow TE, Zhang J, Pandyra AA, Timm J, Weggen S, Lang KS, Lang PA. Progranulin prevents regulatory NK cell cytotoxicity against antiviral T cells. JCI Insight 2019; 4:129856. [PMID: 31484831 DOI: 10.1172/jci.insight.129856] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 08/06/2019] [Indexed: 12/15/2022] Open
Abstract
`NK cell-mediated regulation of antigen-specific T cells can contribute to and exacerbate chronic viral infection, but the protective mechanisms against NK cell-mediated attack on T cell immunity are poorly understood. Here, we show that progranulin (PGRN) can reduce NK cell cytotoxicity through reduction of NK cell expansion, granzyme B transcription, and NK cell-mediated lysis of target cells. Following infection with the lymphocytic choriomeningitis virus (LCMV), PGRN levels increased - a phenomenon dependent on the presence of macrophages and type I IFN signaling. Absence of PGRN in mice (Grn-/-) resulted in enhanced NK cell activity, increased NK cell-mediated killing of antiviral T cells, reduced antiviral T cell immunity, and increased viral burden, culminating in increased liver immunopathology. Depletion of NK cells restored antiviral immunity and alleviated pathology during infection in Grn-/- mice. In turn, PGRN treatment improved antiviral T cell immunity. Taken together, we identified PGRN as a critical factor capable of reducing NK cell-mediated attack of antiviral T cells.
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Affiliation(s)
| | | | - Jun Huang
- Department of Molecular Medicine II and
| | - Tina Senff
- Institute of Virology, Medical Faculty, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | | | | | - Dieter Häussinger
- Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Thomas E Willnow
- Molecular Cardiovascular Research, Max-Delbrueck-Center for Molecular Medicine, Berlin, Germany
| | - Jinping Zhang
- Institutes of Biology and Medical Sciences, Soochow University, Suzhou, China
| | - Aleksandra A Pandyra
- Department of Molecular Medicine II and.,Department of Gastroenterology, Hepatology and Infectious Diseases, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Jörg Timm
- Institute of Virology, Medical Faculty, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Sascha Weggen
- Department of Neuropathology, Medical Faculty, Heinrich-Heine-Universität Düsseldorf, Düsseldorf, Germany
| | - Karl S Lang
- Institute of Immunology, Medical Faculty, Universität Duisburg-Essen, Essen, Germany
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17
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Chen C, Li J, Matye DJ, Wang Y, Li T. Hepatocyte sortilin 1 knockout and treatment with a sortilin 1 inhibitor reduced plasma cholesterol in Western diet-fed mice. J Lipid Res 2019; 60:539-549. [PMID: 30670473 DOI: 10.1194/jlr.m089789] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2018] [Revised: 01/21/2019] [Indexed: 01/10/2023] Open
Abstract
Sortilin 1 (Sort1) is a member of the Vps10p domain intracellular trafficking receptor family. Genetic variations of the SORT1 gene are strongly associated with plasma cholesterol levels in humans. Recent studies have linked Sort1 to regulation of cholesterol metabolism in hepatocytes and pro-inflammatory response in macrophages, but the tissue-specific roles of Sort1 in lipid metabolism have not been well defined. We developed Sort1 floxed mice and investigated the development of Western diet (WD)-induced steatosis, hepatic inflammatory response, and hyperlipidemia in hepatocyte Sort1 KO mice and myeloid cell Sort1 KO mice. Our findings suggest that hepatocyte Sort1 deficiency attenuated diet-induced hepatic steatosis and hypercholesterolemia in mice. In contrast, myeloid Sort1 deficiency did not reduce hepatic cytokine expression or plasma cholesterol levels, but exacerbated hepatic triglyceride accumulation in WD-fed mice. Finally, we showed that treating WD-fed mice with an orally bioavailable Sort1 inhibitor, AF38469, decreased plasma cholesterol and hepatic cytokine expression. AF38469 treatment did not affect diet-induced obesity or insulin resistance, but was associated with reduced hepatic VLDL secretion and higher hepatic cholesterol 7α-hydrolase expression in WD-fed mice. In conclusion, findings from this study suggest that Sort1 loss-of-function in hepatocytes contributes to lower plasma cholesterol, and pharmacological inhibition of Sort1 attenuates diet-induced hypercholesterolemia in mice.
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Affiliation(s)
- Cheng Chen
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - Jibiao Li
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - David J Matye
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - Yifeng Wang
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
| | - Tiangang Li
- Department of Pharmacology, Toxicology, and Therapeutics, University of Kansas Medical Center, Kansas City, KS 66160
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18
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Biscetti F, Bonadia N, Santini F, Angelini F, Nardella E, Pitocco D, Santoliquido A, Filipponi M, Landolfi R, Flex A. Sortilin levels are associated with peripheral arterial disease in type 2 diabetic subjects. Cardiovasc Diabetol 2019; 18:5. [PMID: 30634965 PMCID: PMC6329108 DOI: 10.1186/s12933-019-0805-5] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Accepted: 01/03/2019] [Indexed: 02/07/2023] Open
Abstract
BACKGROUND Sortilin is a 95-kDa protein which has recently been linked to circulating cholesterol concentration and lifetime risk of developing significant atherosclerotic disease. Sortilin is found inside different cell types and circulating in blood. Higher circulating sortilin concentration has been found in patients with coronary atherosclerosis compared to control subjects. Sortilin concentration is influenced by statin therapy. METHODS We enrolled statin-naïve subjects with type 2 diabetes mellitus and we performed a cross-sectional study to evaluate the association between sortilin levels and the presence of clinically significant lower limb peripheral artery disease (PAD) in a population of statin-free diabetic subjects. RESULTS Out of the 154 patients enrolled in our study, 80 patients were free from PAD, while 74 had clinically significant PAD. Sortilin concentration was significantly higher in the latter group compared to the former (1.61 ± 0.54 ng/mL versus 0.67 ± 0.30 ng/mL, P < 0.01) and there was a trend toward increased sortilin levels as disease severity increased. The association of sortilin levels with PAD remained after adjusting for major risk factors in a multivariate analysis. CONCLUSIONS We showed that sortilin is significantly and independently associated with the presence of lower limb PAD in a statin-free diabetic population and it may be a promising marker for clinically significant atherosclerosis of the lower limbs. Further studies are needed to confirm this finding and to evaluate its clinical usefulness.
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Affiliation(s)
- Federico Biscetti
- U.O.C. Clinica Medica e Malattie Vascolari, Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Nicola Bonadia
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
- U.O.C. Medicina d’Urgenza e Pronto Soccorso, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | - Francesco Santini
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Flavia Angelini
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Elisabetta Nardella
- U.O.C. Clinica Medica e Malattie Vascolari, Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
| | - Dario Pitocco
- U.O.S.A. di Diabetologia, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Angelo Santoliquido
- Università Cattolica del Sacro Cuore, Rome, Italy
- U.O.S. Angiologia Columbus, Fondazione Policlinico Universitario A. Gemelli IRCCS, Rome, Italy
| | | | - Raffaele Landolfi
- U.O.C. Clinica Medica e Malattie Vascolari, Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
| | - Andrea Flex
- U.O.C. Clinica Medica e Malattie Vascolari, Department of Medicine, Fondazione Policlinico Universitario A. Gemelli IRCCS, Largo F. Vito 1, 00168 Rome, Italy
- Laboratory of Vascular Biology and Genetics, Università Cattolica del Sacro Cuore, Rome, Italy
- Università Cattolica del Sacro Cuore, Rome, Italy
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19
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Talbot H, Saada S, Naves T, Gallet PF, Fauchais AL, Jauberteau MO. Regulatory Roles of Sortilin and SorLA in Immune-Related Processes. Front Pharmacol 2019; 9:1507. [PMID: 30666202 PMCID: PMC6330335 DOI: 10.3389/fphar.2018.01507] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2018] [Accepted: 12/10/2018] [Indexed: 12/25/2022] Open
Abstract
Sortilin, also known as Neurotensin Receptor-3, and the sorting-related receptor with type-A repeats (SorLA) are both members of the Vps10p domain receptor family. Initially identified in CNS cells, they are expressed in various other cell types where they exert multiple functions. Although mostly studied for its involvement in Alzheimer’s disease, SorLA has recently been shown to be implicated in immune response by regulating IL-6-mediated signaling, as well as driving monocyte migration. Sortilin has been shown to act as a receptor, as a co-receptor and as an intra- and extracellular trafficking regulator. In the last two decades, deregulation of sortilin has been demonstrated to be involved in many human pathophysiologies, including neurodegenerative disorders (Alzheimer and Parkinson diseases), type 2 diabetes and obesity, cancer, and cardiovascular pathologies such as atherosclerosis. Several studies highlighted different functions of sortilin in the immune system, notably in microglia, pro-inflammatory cytokine regulation, phagosome fusion and pathogen clearance. In this review, we will analyze the multiple roles of sortilin and SorLA in the human immune system and how their deregulation may be involved in disease development.
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Affiliation(s)
- Hugo Talbot
- Faculty of Medicine, University of Limoges, Limoges, France
| | - Sofiane Saada
- Faculty of Medicine, University of Limoges, Limoges, France
| | - Thomas Naves
- Faculty of Medicine, University of Limoges, Limoges, France
| | | | - Anne-Laure Fauchais
- Faculty of Medicine, University of Limoges, Limoges, France.,Department of Internal Medicine, University Hospital Limoges Dupuytren Hospital, Limoges, France
| | - Marie-Odile Jauberteau
- Faculty of Medicine, University of Limoges, Limoges, France.,Department of Immunology, University Hospital Limoges Dupuytren Hospital, Limoges, France
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20
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Emmer BT, Hesketh GG, Kotnik E, Tang VT, Lascuna PJ, Xiang J, Gingras AC, Chen XW, Ginsburg D. The cargo receptor SURF4 promotes the efficient cellular secretion of PCSK9. eLife 2018; 7:e38839. [PMID: 30251625 PMCID: PMC6156083 DOI: 10.7554/elife.38839] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2018] [Accepted: 09/14/2018] [Indexed: 12/17/2022] Open
Abstract
PCSK9 is a secreted protein that regulates plasma cholesterol levels and cardiovascular disease risk. Prior studies suggested the presence of an ER cargo receptor that recruits PCSK9 into the secretory pathway, but its identity has remained elusive. Here, we apply a novel approach that combines proximity-dependent biotinylation and proteomics together with genome-scale CRISPR screening to identify SURF4, a homologue of the yeast cargo receptor Erv29p, as a primary mediator of PCSK9 secretion in HEK293T cells. The functional contribution of SURF4 to PCSK9 secretion was confirmed with multiple independent SURF4-targeting sgRNAs, clonal SURF4-deficient cell lines, and functional rescue with SURF4 cDNA. SURF4 was found to localize to the early secretory pathway where it physically interacts with PCSK9. Deletion of SURF4 resulted in ER accumulation and decreased extracellular secretion of PCSK9. These findings support a model in which SURF4 functions as an ER cargo receptor mediating the efficient cellular secretion of PCSK9.
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Affiliation(s)
- Brian T Emmer
- Department of Internal MedicineUniversity of MichiganAnn ArborMichigan
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
| | - Geoffrey G Hesketh
- Centre for Systems BiologyLunenfeld-Tanenbaum Research Institute, Sinai Health SystemTorontoCanada
| | - Emilee Kotnik
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
| | - Vi T Tang
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
| | - Paul J Lascuna
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
| | - Jie Xiang
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
| | - Anne-Claude Gingras
- Centre for Systems BiologyLunenfeld-Tanenbaum Research Institute, Sinai Health SystemTorontoCanada
- Department of Molecular GeneticsUniversity of TorontoTorontoCanada
| | - Xiao-Wei Chen
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
- State Key Laboratory of Membrane Biology, Institute of Molecular Medicine, Center for Life SciencesPeking UniversityBeijingChina
| | - David Ginsburg
- Department of Internal MedicineUniversity of MichiganAnn ArborMichigan
- Life Sciences InstituteUniversity of MichiganAnn ArborMichigan
- Department of Human GeneticsUniversity of MichiganAnn ArborMichigan
- Department of Pediatrics and Communicable DiseasesUniversity of MichiganAnn ArborMichigan
- Howard Hughes Medical InstituteUniversity of MichiganAnn ArborMichigan
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21
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Yabe‐Wada T, Matsuba S, Unno M, Onai N. Crystal structure of the ligand‐free form of the Vps10 ectodomain of dimerized Sortilin at acidic
pH. FEBS Lett 2018; 592:2647-2657. [DOI: 10.1002/1873-3468.13181] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2018] [Revised: 06/18/2018] [Accepted: 06/29/2018] [Indexed: 12/12/2022]
Affiliation(s)
| | - Shintaro Matsuba
- Department of Immunology Kanazawa Medical University Uchinada Japan
| | - Masaki Unno
- Graduate School of Science and Engineering Ibaraki University Japan
| | - Nobuyuki Onai
- Department of Immunology Kanazawa Medical University Uchinada Japan
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22
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Januliene D, Andersen JL, Nielsen JA, Quistgaard EM, Hansen M, Strandbygaard D, Moeller A, Petersen CM, Madsen P, Thirup SS. Acidic Environment Induces Dimerization and Ligand Binding Site Collapse in the Vps10p Domain of Sortilin. Structure 2017; 25:1809-1819.e3. [DOI: 10.1016/j.str.2017.09.015] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 08/21/2017] [Accepted: 09/25/2017] [Indexed: 12/30/2022]
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23
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Goettsch C, Kjolby M, Aikawa E. Sortilin and Its Multiple Roles in Cardiovascular and Metabolic Diseases. Arterioscler Thromb Vasc Biol 2017; 38:19-25. [PMID: 29191923 DOI: 10.1161/atvbaha.117.310292] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 11/16/2017] [Indexed: 12/24/2022]
Abstract
Cardiovascular disease is a leading cause of morbidity and mortality in the Western world. Studies of sortilin's influence on cardiovascular and metabolic diseases goes far beyond the genome-wide association studies that have revealed an association between cardiovascular diseases and the 1p13 locus that encodes sortilin. Emerging evidence suggests a significant role of sortilin in the pathogenesis of vascular and metabolic diseases; this includes type II diabetes mellitus via regulation of insulin resistance, atherosclerosis through arterial wall inflammation and calcification, and dysregulated lipoprotein metabolism. Sortilin is also known for its functional role in neurological disorders. It serves as a key receptor for cytokines, lipids, and enzymes and participates in pathological cargo loading to and trafficking of extracellular vesicles. This article provides a comprehensive review of sortilin's contributions to cardiovascular and metabolic diseases but focuses particularly on atherosclerosis. We summarize recent clinical findings that suggest that sortilin may be a cardiovascular risk biomarker and also discuss sortilin as a potential drug target.
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Affiliation(s)
- Claudia Goettsch
- From the Department of Internal Medicine I-Cardiology, RWTH Aachen University, Germany (C.G.); The Danish Research Institute of Translational Neuroscience, Nordic European Molecular Biology Laboratory Partnership for Molecular Medicine, Danish Diabetes Academy, Denmark (M.K.); Department of Biomedicine (M.K.) and Department of Cardiology (M.K.), Aarhus University, Denmark; and Center for Interdisciplinary Cardiovascular Sciences (E.A.) and Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine (E.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Mads Kjolby
- From the Department of Internal Medicine I-Cardiology, RWTH Aachen University, Germany (C.G.); The Danish Research Institute of Translational Neuroscience, Nordic European Molecular Biology Laboratory Partnership for Molecular Medicine, Danish Diabetes Academy, Denmark (M.K.); Department of Biomedicine (M.K.) and Department of Cardiology (M.K.), Aarhus University, Denmark; and Center for Interdisciplinary Cardiovascular Sciences (E.A.) and Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine (E.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA
| | - Elena Aikawa
- From the Department of Internal Medicine I-Cardiology, RWTH Aachen University, Germany (C.G.); The Danish Research Institute of Translational Neuroscience, Nordic European Molecular Biology Laboratory Partnership for Molecular Medicine, Danish Diabetes Academy, Denmark (M.K.); Department of Biomedicine (M.K.) and Department of Cardiology (M.K.), Aarhus University, Denmark; and Center for Interdisciplinary Cardiovascular Sciences (E.A.) and Center for Excellence in Vascular Biology, Division of Cardiovascular Medicine (E.A.), Brigham and Women's Hospital, Harvard Medical School, Boston, MA.
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24
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Pirault J, Polyzos KA, Petri MH, Ketelhuth DFJ, Bäck M, Hansson GK. The inflammatory cytokine interferon-gamma inhibits sortilin-1 expression in hepatocytes via the JAK/STAT pathway. Eur J Immunol 2017; 47:1918-1924. [DOI: 10.1002/eji.201646768] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2016] [Revised: 05/29/2017] [Accepted: 07/21/2017] [Indexed: 11/07/2022]
Affiliation(s)
- John Pirault
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
- INSERM UMR_S1116; Université de Lorraine; Vandoeuvre-lès-Nancy France
| | - Konstantinos A. Polyzos
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
| | - Marcelo H. Petri
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
| | - Daniel F. J. Ketelhuth
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
| | - Magnus Bäck
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
- INSERM UMR_S1116; Université de Lorraine; Vandoeuvre-lès-Nancy France
| | - Göran K. Hansson
- Center for Molecular Medicine; Department of Medicine; Karolinska Institute, and Karolinska University Hospital; Stockholm Sweden
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25
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Physiological and therapeutic regulation of PCSK9 activity in cardiovascular disease. Basic Res Cardiol 2017; 112:32. [PMID: 28439730 PMCID: PMC5403857 DOI: 10.1007/s00395-017-0619-0] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Accepted: 04/07/2017] [Indexed: 12/14/2022]
Abstract
Ischemic heart disease is the main cause of death worldwide and is accelerated by increased levels of low-density lipoprotein cholesterol (LDL-C). Proprotein convertase subtilisin/kexin type 9 (PCSK9) is a potent circulating regulator of LDL-C through its ability to induce degradation of the LDL receptor (LDLR) in the lysosome of hepatocytes. Only in the last few years, a number of breakthroughs in the understanding of PCSK9 biology have been reported illustrating how PCSK9 activity is tightly regulated at several levels by factors influencing its transcription, secretion, or by extracellular inactivation and clearance. Two humanized antibodies directed against the LDLR-binding site in PCSK9 received approval by the European and US authorities and additional PCSK9 directed therapeutics are climbing up the phases of clinical trials. The first outcome data of the PCSK9 inhibitor evolocumab reported a significant reduction in the composite endpoint (cardiovascular death, myocardial infarction, or stroke) and further outcome data are awaited. Meanwhile, it became evident that PCSK9 has (patho)physiological roles in several cardiovascular cells. In this review, we summarize and discuss the recent biological and clinical data on PCSK9, the regulation of PCSK9, its extra-hepatic activities focusing on cardiovascular cells, molecular concepts to target PCSK9, and finally briefly summarize the data of recent clinical studies.
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26
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Hubel E, Saroha A, Park WJ, Pewzner-Jung Y, Lavoie EG, Futerman AH, Bruck R, Fishman S, Dranoff JA, Shibolet O, Zvibel I. Sortilin Deficiency Reduces Ductular Reaction, Hepatocyte Apoptosis, and Liver Fibrosis in Cholestatic-Induced Liver Injury. THE AMERICAN JOURNAL OF PATHOLOGY 2017; 187:122-133. [DOI: 10.1016/j.ajpath.2016.09.005] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/25/2016] [Revised: 08/04/2016] [Accepted: 09/01/2016] [Indexed: 01/14/2023]
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27
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Vázquez CL, Rodgers A, Herbst S, Coade S, Gronow A, Guzman CA, Wilson MS, Kanzaki M, Nykjaer A, Gutierrez MG. The proneurotrophin receptor sortilin is required for Mycobacterium tuberculosis control by macrophages. Sci Rep 2016; 6:29332. [PMID: 27389464 PMCID: PMC4937236 DOI: 10.1038/srep29332] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 06/16/2016] [Indexed: 02/05/2023] Open
Abstract
Sorting of luminal and membrane proteins into phagosomes is critical for the immune function of this organelle. However, little is known about the mechanisms that contribute to the spatiotemporal regulation of this process. Here, we investigated the role of the proneurotrophin receptor sortilin during phagosome maturation and mycobacterial killing. We show that this receptor is acquired by mycobacteria-containing phagosomes via interactions with the adaptor proteins AP-1 and GGAs. Interestingly, the phagosomal association of sortilin is critical for the delivery of acid sphingomyelinase (ASMase) and required for efficient phagosome maturation. Macrophages from Sort1(-/-) mice are less efficient in restricting the growth of Mycobacterium bovis BCG and M. tuberculosis. In vivo, Sort1(-/-) mice showed a substantial increase in cellular infiltration of neutrophils in their lungs and higher bacterial burden after infection with M. tuberculosis. Altogether, sortilin defines a pathway required for optimal intracellular mycobacteria control and lung inflammation in vivo.
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Affiliation(s)
- Cristina L Vázquez
- Research Group Phagosome Biology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Angela Rodgers
- Host-pathogen interactions in tuberculosis laboratory, The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, London, NW7 1AA, UK
| | - Susanne Herbst
- Host-pathogen interactions in tuberculosis laboratory, The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, London, NW7 1AA, UK
| | - Stephen Coade
- Host-pathogen interactions in tuberculosis laboratory, The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, London, NW7 1AA, UK
| | - Achim Gronow
- Research Group Phagosome Biology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Carlos A Guzman
- Department of Vaccinology and Applied Microbiology, Helmholtz Centre for Infection Research, Inhoffenstrasse 7, 38124 Braunschweig, Germany
| | - Mark S Wilson
- Allergy and Anti-Helminth Immunity Laboratory, The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, London, NW7 1AA, UK
| | - Makoto Kanzaki
- Graduate School of Biomedical Engineering, Tohoku University, Sendai, Miyagi, Japan
| | - Anders Nykjaer
- The Lundbeck Foundation Research Center MIND, Department of Medical Biochemistry, Aarhus University, DK-8000 Aarhus, Denmark
| | - Maximiliano G Gutierrez
- Host-pathogen interactions in tuberculosis laboratory, The Francis Crick Institute, Mill Hill Laboratory, The Ridgeway, London, NW7 1AA, UK
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28
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Yabe-Wada T, Matsuba S, Takeda K, Sato T, Suyama M, Ohkawa Y, Takai T, Shi H, Philpott CC, Nakamura A. TLR signals posttranscriptionally regulate the cytokine trafficking mediator sortilin. Sci Rep 2016; 6:26566. [PMID: 27220277 PMCID: PMC4879639 DOI: 10.1038/srep26566] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2016] [Accepted: 05/04/2016] [Indexed: 01/14/2023] Open
Abstract
Regulating the transcription, translation and secretion of cytokines is crucial for controlling the appropriate balance of inflammation. Here we report that the sorting receptor sortilin plays a key role in cytokine production. We observed interactions of sortilin with multiple cytokines including IFN-α, and sortilin depletion in plasmacytoid dendritic cells (pDCs) led to a reduction of IFN-α secretion, suggesting a pivotal role of sortilin in the exocytic trafficking of IFN-α in pDCs. Moreover, sortilin mRNA was degraded posttranscriptionally upon stimulation with various TLR ligands. Poly-rC-binding protein 1 (PCBP1) recognized the C-rich element (CRE) in the 3′ UTR of sortilin mRNA, and depletion of PCBP1 enhanced the degradation of sortilin transcripts, suggesting that PCBP1 can act as a trans-acting factor to stabilize sortilin transcripts. The nucleotide-binding ability of PCBP1 was impaired by zinc ions and alterations of intracellular zinc affect sortilin expression. PCBP1 may therefore control the stability of sortilin transcripts by sensing intracellular zinc levels. Collectively, our findings provide insights into the posttranslational regulation of cytokine production through the posttranscriptional control of sortilin expression by TLR signals.
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Affiliation(s)
- Toshiki Yabe-Wada
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Ishikawa, 920-0293, JAPAN.,Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Shintaro Matsuba
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Ishikawa, 920-0293, JAPAN
| | - Kazuya Takeda
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Ishikawa, 920-0293, JAPAN
| | - Tetsuya Sato
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Mikita Suyama
- Division of Bioinformatics, Medical Institute of Bioregulation, Kyushu University, Fukuoka 812-8582, Japan
| | - Yasuyuki Ohkawa
- Department of Advanced Medical Initiatives, Faculty of Medicine, Kyushu University, Fukuoka 812-8582, Japan
| | - Toshiyuki Takai
- Department of Experimental Immunology, Institute of Development, Aging and Cancer, Tohoku University, 4-1 Seiryo, Sendai 980-8575, Japan
| | - Haifeng Shi
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Caroline C Philpott
- Liver Diseases Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, MD 20892, USA
| | - Akira Nakamura
- Department of Immunology, Kanazawa Medical University, Kahoku Uchinada, Ishikawa, 920-0293, JAPAN
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29
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Gadila SKG, Kim K. Cargo trafficking from the trans-Golgi network towards the endosome. Biol Cell 2016; 108:205-18. [DOI: 10.1111/boc.201600001] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2016] [Revised: 03/30/2016] [Accepted: 03/31/2016] [Indexed: 11/28/2022]
Affiliation(s)
| | - Kyoungtae Kim
- Department of Biology; Missouri State University; Springfield MO 65807 USA
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30
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Chiaruttini G, Piperno GM, Jouve M, De Nardi F, Larghi P, Peden AA, Baj G, Müller S, Valitutti S, Galli T, Benvenuti F. The SNARE VAMP7 Regulates Exocytic Trafficking of Interleukin-12 in Dendritic Cells. Cell Rep 2016; 14:2624-36. [PMID: 26972013 PMCID: PMC4806224 DOI: 10.1016/j.celrep.2016.02.055] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Revised: 12/21/2015] [Accepted: 02/09/2016] [Indexed: 11/24/2022] Open
Abstract
Interleukin-12 (IL-12), produced by dendritic cells in response to activation, is central to pathogen eradication and tumor rejection. The trafficking pathways controlling spatial distribution and intracellular transport of IL-12 vesicles to the cell surface are still unknown. Here, we show that intracellular IL-12 localizes in late endocytic vesicles marked by the SNARE VAMP7. Dendritic cells (DCs) from VAMP7-deficient mice are partially impaired in the multidirectional release of IL-12. Upon encounter with antigen-specific T cells, IL-12-containing vesicles rapidly redistribute at the immune synapse and release IL-12 in a process entirely dependent on VAMP7 expression. Consistently, acquisition of effector functions is reduced in T cells stimulated by VAMP7-null DCs. These results provide insights into IL-12 intracellular trafficking pathways and show that VAMP7-mediated release of IL-12 at the immune synapse is a mechanism to transmit innate signals to T cells. Intracellular trafficking of IL-12 in dendritic cells is mediated by the SNARE VAMP7 VAMP7 is required for optimal secretion of IL-12 in the extracellular space IL-12/VAMP7+ vesicles gather at the immune synapse VAMP7 controls synaptic release of IL-12 and IFN-γ production in T cells
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Affiliation(s)
- Giulia Chiaruttini
- International Centre for Genetic Engineering and Biotechnology, Padriciano 99, 34149 Trieste, Italy
| | - Giulia M Piperno
- International Centre for Genetic Engineering and Biotechnology, Padriciano 99, 34149 Trieste, Italy
| | - Mabel Jouve
- Génétique et Biologie du Développement, UMR 3215, 26 rue d'Ulm, 75005 Paris, France
| | - Francesca De Nardi
- International Centre for Genetic Engineering and Biotechnology, Padriciano 99, 34149 Trieste, Italy
| | - Paola Larghi
- Department of Pathophysiology and Transplantation, University of Milan, via F. Sforza 35, 20122 Milan, Italy; Istituto Nazionale Genetica Molecolare "Romeo ed Enrica Invernizzi," via F. Sforza 35, 20122 Milan, Italy
| | - Andrew A Peden
- Centre for Membrane Interactions and Dynamics, Department of Biomedical Science, The University of Sheffield, Western Bank, Sheffield S10 2TN, UK
| | - Gabriele Baj
- Life Sciences Department, University of Trieste, via Giorgieri 5, 34127 Trieste, Italy
| | - Sabina Müller
- Centre de Physiopathologie Toulouse-Purpan, Toulouse, INSERM UMR 1043, Toulouse 31300, France
| | - Salvatore Valitutti
- Centre de Physiopathologie Toulouse-Purpan, Toulouse, INSERM UMR 1043, Toulouse 31300, France
| | - Thierry Galli
- Institut Jacques Monod, UMR 7592, Centre National de la Recherche Scientifique, Université Paris Diderot, Sorbonne Paris Cité, 75013 Paris, France; Membrane Traffic in Neuronal and Epithelial Morphogenesis, INSERM ERL U950, 75013 Paris, France
| | - Federica Benvenuti
- International Centre for Genetic Engineering and Biotechnology, Padriciano 99, 34149 Trieste, Italy.
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31
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Nakazawa T, Hashimoto R, Sakoori K, Sugaya Y, Tanimura A, Hashimotodani Y, Ohi K, Yamamori H, Yasuda Y, Umeda-Yano S, Kiyama Y, Konno K, Inoue T, Yokoyama K, Inoue T, Numata S, Ohnuma T, Iwata N, Ozaki N, Hashimoto H, Watanabe M, Manabe T, Yamamoto T, Takeda M, Kano M. Emerging roles of ARHGAP33 in intracellular trafficking of TrkB and pathophysiology of neuropsychiatric disorders. Nat Commun 2016; 7:10594. [PMID: 26839058 PMCID: PMC4742909 DOI: 10.1038/ncomms10594] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2015] [Accepted: 01/04/2016] [Indexed: 12/20/2022] Open
Abstract
Intracellular trafficking of receptor proteins is essential for neurons to detect various extracellular factors during the formation and refinement of neural circuits. However, the precise mechanisms underlying the trafficking of neurotrophin receptors to synapses remain elusive. Here, we demonstrate that a brain-enriched sorting nexin, ARHGAP33, is a new type of regulator for the intracellular trafficking of TrkB, a high-affinity receptor for brain-derived neurotrophic factor. ARHGAP33 knockout (KO) mice exhibit reduced expression of synaptic TrkB, impaired spine development and neuropsychiatric disorder-related behavioural abnormalities. These deficits are rescued by specific pharmacological enhancement of TrkB signalling in ARHGAP33 KO mice. Mechanistically, ARHGAP33 interacts with SORT1 to cooperatively regulate TrkB trafficking. Human ARHGAP33 is associated with brain phenotypes and reduced SORT1 expression is found in patients with schizophrenia. We propose that ARHGAP33/SORT1-mediated TrkB trafficking is essential for synapse development and that the dysfunction of this mechanism may be a new molecular pathology of neuropsychiatric disorders. The molecular mechanisms of neurotrophin receptor trafficking are only partially understood. Here the authors show that ARHGAP33 interacts with SORT1 to regulate TrkB trafficking, the dysfunction of which impairs synapse development and leads to schizophrenia-related behavioural abnormalities in mice.
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Affiliation(s)
- Takanobu Nakazawa
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan.,Division of Oncology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,iPS Cell-based Research Project on Brain Neuropharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita 565-0871, Japan
| | - Ryota Hashimoto
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan.,Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Suita 565-0871, Japan
| | - Kazuto Sakoori
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuki Sugaya
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Asami Tanimura
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Yuki Hashimotodani
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
| | - Kazutaka Ohi
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
| | - Hidenaga Yamamori
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan.,Department of Molecular Neuropsychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
| | - Yuka Yasuda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
| | - Satomi Umeda-Yano
- Department of Molecular Neuropsychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan
| | - Yuji Kiyama
- Division of Neuronal Network, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Kohtarou Konno
- Department of Anatomy, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan
| | - Takeshi Inoue
- Division of Oncology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Kazumasa Yokoyama
- Division of Oncology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Takafumi Inoue
- Department of Life Science and Medical Bioscience, School of Advanced Science and Engineering, Waseda University, Tokyo 162-8480, Japan
| | - Shusuke Numata
- Department of Psychiatry, Course of Integrated Brain Sciences, School of Medicine, University of Tokushima, Tokushima 770-8503, Japan
| | - Tohru Ohnuma
- Department of Psychiatry, Juntendo University School of Medicine, Tokyo 113-0033, Japan
| | - Nakao Iwata
- Department of Psychiatry, Fujita Health University School of Medicine, Toyoake 470-1192, Japan
| | - Norio Ozaki
- Department of Psychiatry, Nagoya University Graduate School of Medicine, Nagoya 461-8673, Japan
| | - Hitoshi Hashimoto
- iPS Cell-based Research Project on Brain Neuropharmacology and Toxicology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita 565-0871, Japan.,Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Suita 565-0871, Japan.,Laboratory of Molecular Neuropharmacology, Graduate School of Pharmaceutical Sciences, Osaka University, Suita 565-0871, Japan
| | - Masahiko Watanabe
- Department of Anatomy, Hokkaido University Graduate School of Medicine, Sapporo 060-8638, Japan
| | - Toshiya Manabe
- Division of Neuronal Network, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan
| | - Tadashi Yamamoto
- Division of Oncology, Institute of Medical Science, The University of Tokyo, Tokyo 108-8639, Japan.,Cell Signal Unit, Okinawa Institute of Science and Technology Graduate University, Onna-son 904-0495, Japan
| | - Masatoshi Takeda
- Department of Psychiatry, Osaka University Graduate School of Medicine, Suita 565-0871, Japan.,Molecular Research Center for Children's Mental Development, United Graduate School of Child Development, Osaka University, Suita 565-0871, Japan
| | - Masanobu Kano
- Department of Neurophysiology, Graduate School of Medicine, The University of Tokyo, Tokyo 113-0033, Japan
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32
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Schmidt V, Willnow TE. Protein sorting gone wrong – VPS10P domain receptors in cardiovascular and metabolic diseases. Atherosclerosis 2016; 245:194-9. [DOI: 10.1016/j.atherosclerosis.2015.11.027] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Revised: 11/04/2015] [Accepted: 11/23/2015] [Indexed: 01/02/2023]
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33
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Reuter E, Weber J, Paterka M, Ploen R, Breiderhoff T, van Horssen J, Willnow TE, Siffrin V, Zipp F. Role of Sortilin in Models of Autoimmune Neuroinflammation. THE JOURNAL OF IMMUNOLOGY 2015; 195:5762-9. [PMID: 26566674 DOI: 10.4049/jimmunol.1403156] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2014] [Accepted: 10/09/2015] [Indexed: 02/07/2023]
Abstract
The proneurotrophin receptor sortilin is a protein with dual functions, being involved in intracellular protein transport, as well as cellular signal transduction. The relevance of the receptor for various neuronal disorders, such as dementia, seizures, and brain injury, is well established. In contrast, little is known about the role of sortilin in immune cells and inflammatory diseases. The aim of our study was to elucidate the distribution of sortilin in different immune cell types in mice and humans and to analyze its function in autoimmune CNS inflammation. Sortilin was expressed most profoundly in murine and human macrophages and dendritic cells and to a much lesser extent in B and T cells. In dendritic cells, sortilin had an impact on Ag processing. Accordingly, sortilin was highly expressed by infiltrated perivascular myeloid cells, mainly in vessel cuffs, in the CNS of patients suffering from multiple sclerosis, the most common inflammatory autoimmune disease of the CNS. Yet, sortilin gene-targeted mice (Sort1(-/-)) and chimeras deficient in sortilin in the immune system were as susceptible as wild-type littermates to T cell-dependent experimental autoimmune encephalomyelitis. Considering our results and recent data from other investigators, we conclude that the proneurotrophin receptor sortilin plays a role in innate, rather than in adaptive, immune processes and, thus, not in autoimmune neuroinflammation.
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Affiliation(s)
- Eva Reuter
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Juliane Weber
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Magdalena Paterka
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Robert Ploen
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Tilman Breiderhoff
- Molecular Cardiovascular Research, Max Delbrueck Center for Molecular Medicine Berlin-Buch, 13125 Berlin, Germany; and
| | - Jack van Horssen
- Department of Molecular Cell Biology and Immunology, VU University Medical Center Amsterdam, 1081 BT Amsterdam, the Netherlands
| | - Thomas E Willnow
- Molecular Cardiovascular Research, Max Delbrueck Center for Molecular Medicine Berlin-Buch, 13125 Berlin, Germany; and
| | - Volker Siffrin
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany
| | - Frauke Zipp
- Department of Neurology, University Medical Center of the Johannes Gutenberg University Mainz, 55131 Mainz, Germany;
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Pasquin S, Sharma M, Gauchat JF. Ciliary neurotrophic factor (CNTF): New facets of an old molecule for treating neurodegenerative and metabolic syndrome pathologies. Cytokine Growth Factor Rev 2015; 26:507-15. [PMID: 26187860 DOI: 10.1016/j.cytogfr.2015.07.007] [Citation(s) in RCA: 88] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2015] [Accepted: 07/01/2015] [Indexed: 12/13/2022]
Abstract
Ciliary neurotrophic factor (CNTF) is the most extensively studied member of the cytokine family that signal through intracellular chains of the gp130/LIFRβ receptor. The severe phenotype in patients suffering from mutations inactivating LIFRβ indicates that members of this cytokine family play key, non-redundant roles during development. Accordingly, three decades of research has revealed potent and promising trophic and regulatory activities of CNTF in neurons, oligodendrocytes, muscle cells, bone cells, adipocytes and retinal cells. These findings led to clinical trials to test the therapeutic potential of CNTF and CNTF derivatives for treating neurodegenerative and metabolic diseases. Promising results have encouraged continuation of studies for treating retinal degenerative diseases. Results of some clinical trials showed that side-effects may limit the systemically administrated doses of CNTF. Therefore, therapies being currently tested rely on local delivery of CNTF using encapsulated cytokine-secreting implants. Since the side effects of CNTF might be linked to its ability to activate the alternative IL6Rα-LIFRβ-gp130 receptor, CNTFR-specific mutants of CNTF have been developed that bind to the CNTFRα-LIFRβ-gp130 receptor. These developments may prove to be a breakthrough for therapeutic applications of systemically administered CNTF in pathologies such as multiple sclerosis or Alzheimer's disease. The "designer cytokine approach" offers future opportunities to further enhance specificity by conjugating mutant CNTF with modified soluble CNTFRα to target therapeutically relevant cells that express gp130-LIFRβ and a specific cell surface marker.
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Affiliation(s)
- Sarah Pasquin
- Département de Pharmacologie, Université de Montréal, 2900 Édouard Montpetit, Montreal, QC H3T 1J4, Canada
| | - Mukut Sharma
- Renal Division, KCVA Medical Center, 4801 Linwood Blvd, Kansas City, MO 64128, USA
| | - Jean-François Gauchat
- Département de Pharmacologie, Université de Montréal, 2900 Édouard Montpetit, Montreal, QC H3T 1J4, Canada.
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Wu G, Liu S, Zhao Y, Wang W, Kong Z, Tang D. ENHANCED DISEASE RESISTANCE4 associates with CLATHRIN HEAVY CHAIN2 and modulates plant immunity by regulating relocation of EDR1 in Arabidopsis. THE PLANT CELL 2015; 27:857-73. [PMID: 25747881 PMCID: PMC4558660 DOI: 10.1105/tpc.114.134668] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/08/2014] [Accepted: 02/22/2015] [Indexed: 05/05/2023]
Abstract
Obligate biotrophs, such as the powdery mildew pathogens, deliver effectors to the host cell and obtain nutrients from the infection site. The interface between the plant host and the biotrophic pathogen thus represents a major battleground for plant-pathogen interactions. Increasing evidence shows that cellular trafficking plays an important role in plant immunity. Here, we report that Arabidopsis thaliana ENHANCED DISEASE RESISTANCE4 (EDR4) plays a negative role in resistance to powdery mildew and that the enhanced disease resistance in edr4 mutants requires salicylic acid signaling. EDR4 mainly localizes to the plasma membrane and endosomal compartments. Genetic analyses show that EDR4 and EDR1 function in the same genetic pathway. EDR1 and EDR4 accumulate at the penetration site of powdery mildew infection, and EDR4 physically interacts with EDR1, recruiting EDR1 to the fungal penetration site. In addition, EDR4 interacts with CLATHRIN HEAVY CHAIN2 (CHC2), and edr4 mutants show reduced endocytosis rates. Taken together, our data indicate that EDR4 associates with CHC2 and modulates plant immunity by regulating the relocation of EDR1 in Arabidopsis.
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Affiliation(s)
- Guangheng Wu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Simu Liu
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yaofei Zhao
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei Wang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhaosheng Kong
- State Key Laboratory of Plant Genomics, Institute of Microbiology, Chinese Academy of Sciences, Beijing 100101, China
| | - Dingzhong Tang
- State Key Laboratory of Plant Cell and Chromosome Engineering, Institute of Genetics and Developmental Biology, Chinese Academy of Sciences, Beijing 100101, China
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Sortilin, Encoded by the Cardiovascular Risk Gene SORT1, and Its Suggested Functions in Cardiovascular Disease. Curr Atheroscler Rep 2015; 17:496. [DOI: 10.1007/s11883-015-0496-7] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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37
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Mortensen MB, Kjolby M, Gunnersen S, Larsen JV, Palmfeldt J, Falk E, Nykjaer A, Bentzon JF. Targeting sortilin in immune cells reduces proinflammatory cytokines and atherosclerosis. J Clin Invest 2014; 124:5317-22. [PMID: 25401472 DOI: 10.1172/jci76002] [Citation(s) in RCA: 91] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2014] [Accepted: 10/16/2014] [Indexed: 12/21/2022] Open
Abstract
Genome-wide association studies have identified a link between genetic variation at the human chromosomal locus 1p13.3 and coronary artery disease. The gene encoding sortilin (SORT1) has been implicated as the causative gene within the locus, as sortilin regulates hepatic lipoprotein metabolism. Here we demonstrated that sortilin also directly affects atherogenesis, independent of its regulatory role in lipoprotein metabolism. In a mouse model of atherosclerosis, deletion of Sort1 did not alter plasma cholesterol levels, but reduced the development of both early and late atherosclerotic lesions. We determined that sortilin is a high-affinity receptor for the proinflammatory cytokines IL-6 and IFN-γ. Moreover, macrophages and Th1 cells (both of which mediate atherosclerotic plaque formation) lacking sortilin had reduced secretion of IL-6 and IFN-γ, but not of other measured cytokines. Transfer of sortilin-deficient BM into irradiated atherosclerotic mice reduced atherosclerosis and systemic markers of inflammation. Together, these data demonstrate that sortilin influences cytokine secretion and that targeting sortilin in immune cells attenuates inflammation and reduces atherosclerosis.
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Rehm A, Gätjen M, Gerlach K, Scholz F, Mensen A, Gloger M, Heinig K, Lamprecht B, Mathas S, Bégay V, Leutz A, Lipp M, Dörken B, Höpken UE. Dendritic cell-mediated survival signals in Eμ-Myc B-cell lymphoma depend on the transcription factor C/EBPβ. Nat Commun 2014; 5:5057. [PMID: 25266931 DOI: 10.1038/ncomms6057] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Accepted: 08/21/2014] [Indexed: 01/07/2023] Open
Abstract
The capacity of dendritic cells (DCs) to regulate tumour-specific adaptive immune responses depends on their proper differentiation and homing status. Whereas DC-associated tumour-promoting functions are linked to T-cell tolerance and formation of an inflammatory milieu, DC-mediated direct effects on tumour growth have remained unexplored. Here we show that deletion of DCs substantially delays progression of Myc-driven lymphomas. Lymphoma-exposed DCs upregulate immunomodulatory cytokines, growth factors and the CCAAT/enhancer-binding protein β (C/EBPβ). Moreover, Eμ-Myc lymphomas induce the preferential translation of the LAP/LAP* isoforms of C/EBPβ. C/EBPβ(-/-) DCs are unresponsive to lymphoma-associated cytokine changes and in contrast to wild-type DCs, they are unable to mediate enhanced Eμ-Myc lymphoma cell survival. Antigen-specific T-cell proliferation in lymphoma-bearing mice is impaired; however, this immune suppression is reverted by the DC-restricted deletion of C/EBPβ. Thus, we show that C/EBPβ-controlled DC functions are critical steps for the creation of a lymphoma growth-promoting and -immunosuppressive niche.
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Affiliation(s)
- Armin Rehm
- 1] Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany [2] Department of Hematology and Oncology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, 13353 Berlin, Germany
| | - Marcel Gätjen
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Kerstin Gerlach
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Florian Scholz
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Angela Mensen
- 1] Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany [2]
| | - Marleen Gloger
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Kristina Heinig
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Björn Lamprecht
- Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Stephan Mathas
- 1] Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany [2] Department of Hematology and Oncology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, 13353 Berlin, Germany
| | - Valérie Bégay
- Department of Cell Differentiation and Tumorigenesis, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Achim Leutz
- Department of Cell Differentiation and Tumorigenesis, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Martin Lipp
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
| | - Bernd Dörken
- 1] Department of Hematology, Oncology and Tumorimmunology, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany [2] Department of Hematology and Oncology, Charité-Universitätsmedizin Berlin, Campus Virchow-Klinikum, 13353 Berlin, Germany
| | - Uta E Höpken
- Department of Tumor Genetics and Immunogenetics, Max-Delbrück-Center for Molecular Medicine, MDC, 13125 Berlin, Germany
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Yu S, Yehia G, Wang J, Stypulkowski E, Sakamori R, Jiang P, Hernandez-Enriquez B, Tran TS, Bonder EM, Guo W, Gao N. Global ablation of the mouse Rab11a gene impairs early embryogenesis and matrix metalloproteinase secretion. J Biol Chem 2014; 289:32030-32043. [PMID: 25271168 DOI: 10.1074/jbc.m113.538223] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Rab11a has been conceived as a prominent regulatory component of the recycling endosome, which acts as a nexus in the endo- and exocytotic networks. The precise in vivo role of Rab11a in mouse embryonic development is unknown. We globally ablated Rab11a and examined the phenotypic and molecular outcomes in Rab11a(null) blastocysts and mouse embryonic fibroblasts. Using multiple trafficking assays and complementation analyses, we determined, among multiple important membrane-associated and soluble cargos, the critical contribution of Rab11a vesicular traffic to the secretion of multiple soluble MMPs. Rab11a(null) embryos were able to properly form normal blastocysts but died at peri-implantation stages. Our data suggest that Rab11a critically controls mouse blastocyst development and soluble matrix metalloproteinase secretion.
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Affiliation(s)
- Shiyan Yu
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Ghassan Yehia
- Transgenic Core Facility, Rutgers New Jersey Medical School, Newark, New Jersey 07103
| | - Juanfei Wang
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, and
| | - Ewa Stypulkowski
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Ryotaro Sakamori
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Ping Jiang
- Cold Spring Harbor Laboratory, Cold Spring Harbor, New York 11724
| | | | - Tracy S Tran
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Edward M Bonder
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102
| | - Wei Guo
- Department of Biology, University of Pennsylvania, Philadelphia, Pennsylvania 19104, and
| | - Nan Gao
- Department of Biological Sciences, Rutgers University, Newark, New Jersey 07102,.
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40
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Carlo AS, Nykjaer A, Willnow TE. Sorting receptor sortilin-a culprit in cardiovascular and neurological diseases. J Mol Med (Berl) 2014; 92:905-11. [PMID: 24838608 DOI: 10.1007/s00109-014-1152-3] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2014] [Accepted: 02/19/2014] [Indexed: 11/30/2022]
Abstract
Sortilin is a sorting receptor that directs target proteins, such as growth factors, signaling receptors, and enzymes, to their destined location in secretory or endocytic compartments of cells. The activity of sortilin is essential for proper function of not only neurons but also non-neuronal cell types, and receptor (dys)function emerges as a major cause of malignancies, including hypercholesterolemia, retinal degeneration, neuronal cell loss in stroke and spinal cord injury, or Alzheimer's disease and other neurodegenerative disorders. In this article, we describe the molecular mechanisms of sortilin action in protein sorting and signaling and how modulation of receptor function may offer novel therapeutic strategies for treatment of common diseases of the cardiovascular and nervous systems.
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Affiliation(s)
- Anne-Sophie Carlo
- Max-Delbrueck-Center for Molecular Medicine, Robert-Roessle-Strasse 10, 13125, Berlin, Germany
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41
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Briguglio JS, Turkewitz AP. Tetrahymena thermophila: a divergent perspective on membrane traffic. JOURNAL OF EXPERIMENTAL ZOOLOGY PART B-MOLECULAR AND DEVELOPMENTAL EVOLUTION 2014; 322:500-16. [PMID: 24634411 DOI: 10.1002/jez.b.22564] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2013] [Revised: 01/13/2014] [Accepted: 01/22/2014] [Indexed: 12/12/2022]
Abstract
Tetrahymena thermophila, a member of the Ciliates, represents a class of organisms distantly related from commonly used model organisms in cell biology, and thus offers an opportunity to explore potentially novel mechanisms and their evolution. Ciliates, like all eukaryotes, possess a complex network of organelles that facilitate both macromolecular uptake and secretion. The underlying endocytic and exocytic pathways are key mediators of a cell's interaction with its environment, and may therefore show niche-specific adaptations. Our laboratory has taken a variety of approaches to identify key molecular determinants for membrane trafficking pathways in Tetrahymena. Studies of Rab GTPases, dynamins, and sortilin-family receptors substantiate the widespread conservation of some features but also uncover surprising roles for lineage-restricted innovation.
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Affiliation(s)
- Joseph S Briguglio
- The Department of Molecular Genetics and Cell Biology, The University of Chicago, Chicago, Illinois
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42
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The hypercholesterolemia-risk gene SORT1 facilitates PCSK9 secretion. Cell Metab 2014; 19:310-8. [PMID: 24506872 DOI: 10.1016/j.cmet.2013.12.006] [Citation(s) in RCA: 127] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/09/2013] [Revised: 11/02/2013] [Accepted: 12/12/2013] [Indexed: 12/23/2022]
Abstract
Circulating PCSK9 destines low-density lipoprotein receptor for degradation in lysosomes, resulting in increased LDL cholesterol. Accordingly, it is an attractive drug target for hypercholesterolemia, and results from clinical trials are promising. While the physiological role of PCSK9 in cholesterol metabolism is well described, its complex mechanism of action remains poorly understood, although it is known to depend on intracellular trafficking. We here identify sortilin, encoded by the hypercholesterolemia-risk gene SORT1, as a high-affinity sorting receptor for PCSK9. Sortilin colocalizes with PCSK9 in the trans-Golgi network and facilitates its secretion from primary hepatocytes. Accordingly, sortilin-deficient mice display decreased levels of circulating PCSK9, while sortilin overexpression in the liver confers increased plasma PCSK9. Furthermore, circulating PCSK9 and sortilin were positively correlated in a human cohort of healthy individuals, suggesting that sortilin is involved in PCSK9 secretion in humans. Taken together, our findings establish sortilin as a critical regulator of PCSK9 activity.
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43
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Stow JL, Murray RZ. Intracellular trafficking and secretion of inflammatory cytokines. Cytokine Growth Factor Rev 2013; 24:227-39. [PMID: 23647915 DOI: 10.1016/j.cytogfr.2013.04.001] [Citation(s) in RCA: 88] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The secretion of cytokines by immune cells plays a significant role in determining the course of an inflammatory response. The levels and timing of each cytokine released are critical for mounting an effective but confined response, whereas excessive or dysregulated inflammation contributes to many diseases. Cytokines are both culprits and targets for effective treatments in some diseases. The multiple points and mechanisms that have evolved for cellular control of cytokine secretion highlight the potency of these mediators and the fine tuning required to manage inflammation. Cytokine production in cells is regulated by cell signaling, and at mRNA and protein synthesis levels. Thereafter, the intracellular transport pathways and molecular trafficking machinery have intricate and essential roles in dictating the release and activity of cytokines. The trafficking machinery and secretory (exocytic) pathways are complex and highly regulated in many cells, involving specialized membranes, molecules and organelles that enable these cells to deliver cytokines to often-distinct areas of the cell surface, in a timely manner. This review provides an overview of secretory pathways - both conventional and unconventional - and key families of trafficking machinery. The prevailing knowledge about the trafficking and secretion of a number of individual cytokines is also summarized. In conclusion, we present emerging concepts about the functional plasticity of secretory pathways and their modulation for controlling cytokines and inflammation.
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Affiliation(s)
- Jennifer L Stow
- Institute for Molecular Bioscience, The University of Queensland, Brisbane, QLD, Australia.
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