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Montecchi T, Nannini G, De Tommaso D, Cassioli C, Coppola F, Ringressi MN, Carraro F, Naldini A, Taddei A, Marotta G, Amedei A, Baldari CT, Ulivieri C. Human colorectal cancer: upregulation of the adaptor protein Rai in TILs leads to cell dysfunction by sustaining GSK-3 activation and PD-1 expression. Cancer Immunol Immunother 2024; 73:2. [PMID: 38175205 PMCID: PMC10766791 DOI: 10.1007/s00262-023-03614-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2023] [Accepted: 12/12/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND The immunosuppressive tumor microenvironment (TME) of colorectal cancer (CRC) is a major hurdle for immune checkpoint inhibitor-based therapies. Hence characterization of the signaling pathways driving T cell exhaustion within TME is a critical need for the discovery of novel therapeutic targets and the development of effective therapies. We previously showed that (i) the adaptor protein Rai is a negative regulator of T cell receptor signaling and T helper 1 (Th1)/Th17 cell differentiation; and (ii) Rai deficiency is implicated in the hyperactive phenotype of T cells in autoimmune diseases. METHODS The expression level of Rai was measured by qRT-PCR in paired peripheral blood T cells and T cells infiltrating tumor tissue and the normal adjacent tissue in CRC patients. The impact of hypoxia-inducible factor (HIF)-1α on Rai expression was evaluated in T cells exposed to hypoxia and by performing chromatin immunoprecipitation assays and RNA interference assays. The mechanism by which upregulation of Rai in T cells promotes T cell exhaustion were evaluated by flow cytometric, qRT-PCR and western blot analyses. RESULTS We show that Rai is a novel HIF-1α-responsive gene that is upregulated in tumor infiltrating lymphocytes of CRC patients compared to patient-matched circulating T cells. Rai upregulation in T cells promoted Programmed cell Death protein (PD)-1 expression and impaired antigen-dependent degranulation of CD8+ T cells by inhibiting phospho-inactivation of glycogen synthase kinase (GSK)-3, a central regulator of PD-1 expression and T cell-mediated anti-tumor immunity. CONCLUSIONS Our data identify Rai as a hitherto unknown regulator of the TME-induced exhausted phenotype of human T cells.
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Affiliation(s)
- Tommaso Montecchi
- Department of Life Sciences, University of Siena, Siena, 53100, Italy
| | - Giulia Nannini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, 50134, Italy
| | | | - Chiara Cassioli
- Department of Life Sciences, University of Siena, Siena, 53100, Italy
| | - Federica Coppola
- Department of Molecular and Developmental Medicine, University of Siena, Siena, 53100, Italy
| | - Maria Novella Ringressi
- Department of Experimental and Clinical Medicine, University of Florence, Florence, 50134, Italy
| | - Fabio Carraro
- Department of Medical Biotechnologies, University of Siena, Siena, 53100, Italy
| | - Antonella Naldini
- Department of Molecular and Developmental Medicine, University of Siena, Siena, 53100, Italy
| | - Antonio Taddei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, 50134, Italy
| | | | - Amedeo Amedei
- Department of Experimental and Clinical Medicine, University of Florence, Florence, 50134, Italy.
| | - Cosima T Baldari
- Department of Life Sciences, University of Siena, Siena, 53100, Italy.
| | - Cristina Ulivieri
- Department of Life Sciences, University of Siena, Siena, 53100, Italy.
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2
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Xiu CD, Ying LX, Chun HY, Fu LJ. Advances in CD247. Scand J Immunol 2022; 96:e13170. [PMID: 35388926 DOI: 10.1111/sji.13170] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2022] [Revised: 03/27/2022] [Accepted: 04/04/2022] [Indexed: 11/27/2022]
Abstract
CD247, which is also known as CD3ζ, CD3H, CD3Q, CD3Z, IMD25, T3Z, and TCRZ, encodes CD3ζ protein, which is expressed primarily in natural killer (NK) and T cells. Since the discovery of the ζ peptide in 1986, it has been continuously investigated. In this paper, we review the composition, molecular mechanisms and regulatory factors of CD247 expression in T cells; and review the autoimmune diseases, tumors and inflammatory diseases associated with CD247, providing a detailed and comprehensive reference for further research on the mechanism of CD247 and related diseases.
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Affiliation(s)
- Chen De Xiu
- Department of Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Lei Xian Ying
- Department of Critical Care Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Hu Ying Chun
- Department of Emergency Medicine, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan, China
| | - Li Jia Fu
- Department of Cardiology, The Affiliated Hospital of Southwest Medical University, Key Laboratory of Medical Electrophysiology, Ministry of Education, Luzhou, Sichuan, China
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3
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Kim WD, Mathavarajah S, Huber RJ. The Cellular and Developmental Roles of Cullins, Neddylation, and the COP9 Signalosome in Dictyostelium discoideum. Front Physiol 2022; 13:827435. [PMID: 35586714 PMCID: PMC9108976 DOI: 10.3389/fphys.2022.827435] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 02/03/2022] [Indexed: 12/02/2022] Open
Abstract
Cullins (CULs) are a core component of cullin-RING E3 ubiquitin ligases (CRLs), which regulate the degradation, function, and subcellular trafficking of proteins. CULs are post-translationally regulated through neddylation, a process that conjugates the ubiquitin-like modifier protein neural precursor cell expressed developmentally downregulated protein 8 (NEDD8) to target cullins, as well as non-cullin proteins. Counteracting neddylation is the deneddylase, COP9 signalosome (CSN), which removes NEDD8 from target proteins. Recent comparative genomics studies revealed that CRLs and the CSN are highly conserved in Amoebozoa. A well-studied representative of Amoebozoa, the social amoeba Dictyostelium discoideum, has been used for close to 100 years as a model organism for studying conserved cellular and developmental processes owing to its unique life cycle comprised of unicellular and multicellular phases. The organism is also recognized as an exceptional model system for studying cellular processes impacted by human diseases, including but not limited to, cancer and neurodegeneration. Recent work shows that the neddylation inhibitor, MLN4924 (Pevonedistat), inhibits growth and multicellular development in D. discoideum, which supports previous work that revealed the cullin interactome in D. discoideum and the roles of cullins and the CSN in regulating cellular and developmental processes during the D. discoideum life cycle. Here, we review the roles of cullins, neddylation, and the CSN in D. discoideum to guide future work on using this biomedical model system to further explore the evolutionarily conserved functions of cullins and neddylation.
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Affiliation(s)
- William D. Kim
- Environmental and Life Sciences Graduate Program, Trent University, Peterborough, ON, Canada
| | | | - Robert J. Huber
- Department of Biology, Trent University, Peterborough, ON, Canada
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4
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Downregulation of SHCBP1 Inhibits Proliferation, Migration, and Invasion in Human Nasopharyngeal Carcinoma Cells. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2021; 2021:8262502. [PMID: 34484405 PMCID: PMC8413040 DOI: 10.1155/2021/8262502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/28/2021] [Accepted: 08/06/2021] [Indexed: 11/29/2022]
Abstract
Background SHC SH2 domain-binding protein 1 (SHCBP1), one of the members of Src homolog and collagen homolog (Shc) family, has been reported to be overexpressed in several malignant cancers and involved in tumor progression. However, the expression of SHCBP1 in nasopharyngeal carcinoma (NPC) remains unclear, and its clinical significance remains to be further elucidated. Methods The expression of SHCBP1 mRNA in 35 pair samples of NPC and adjacent normal tissues of NPC was detected by RT-qPCR. The expression level of SHCBP1 protein and mRNA in the selected cells was detected by western blot and RT-qPCR, respectively. The effects of SHCBP1 on NPC in vitro were observed by MTT method, colony formation assay, apoptosis assay, cell cycle assay, wound healing assay, transwell migration assay, and transwell invasion assay. Results SHCBP1 was highly expressed in clinical tissues and NPC cell lines, and SHCBP1 knockdown significantly inhibited NPC cell proliferation. Overexpression of SHCBP1 promoted NPC cell proliferation, migration, and invasion in NPC cell lines. Silencing SHCBP1 expression can delay cell cycle and inhibit cell apoptosis. Conclusion Our results suggest that SHCBP1 may promote proliferation and metastasis of NPC cells, which represents that SHCBP1 may act as a new indicator for predicting the prognosis of NPC and a new target for clinical treatment.
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A New Pathway Promotes Adaptation of Human Glioblastoma Cells to Glucose Starvation. Cells 2020; 9:cells9051249. [PMID: 32443613 PMCID: PMC7290719 DOI: 10.3390/cells9051249] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2020] [Revised: 05/11/2020] [Accepted: 05/15/2020] [Indexed: 12/13/2022] Open
Abstract
Adaptation of glioblastoma to caloric restriction induces compensatory changes in tumor metabolism that are incompletely known. Here we show that in human glioblastoma cells maintained in exhausted medium, SHC adaptor protein 3 (SHC3) increases due to down-regulation of SHC3 protein degradation. This effect is reversed by glucose addition and is not present in normal astrocytes. Increased SHC3 levels are associated to increased glucose uptake mediated by changes in membrane trafficking of glucose transporters of the solute carrier 2A superfamily (GLUT/SLC2A). We found that the effects on vesicle trafficking are mediated by SHC3 interactions with adaptor protein complex 1 and 2 (AP), BMP-2-inducible protein kinase and a fraction of poly ADP-ribose polymerase 1 (PARP1) associated to vesicles containing GLUT/SLC2As. In glioblastoma cells, PARP1 inhibitor veliparib mimics glucose starvation in enhancing glucose uptake. Furthermore, cytosol extracted from glioblastoma cells inhibits PARP1 enzymatic activity in vitro while immunodepletion of SHC3 from the cytosol significantly relieves this inhibition. The identification of a new pathway controlling glucose uptake in high grade gliomas represents an opportunity for repositioning existing drugs and designing new ones.
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Criscuoli M, Ulivieri C, Filippi I, Monaci S, Guerrini G, Crifò B, De Tommaso D, Pelicci G, Baldari CT, Taylor CT, Carraro F, Naldini A. The Shc protein Rai enhances T-cell survival under hypoxia. J Cell Physiol 2020; 235:8058-8070. [PMID: 31944299 DOI: 10.1002/jcp.29461] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 01/07/2020] [Indexed: 12/18/2022]
Abstract
Hypoxia occurs in physiological and pathological conditions. T cells experience hypoxia in pathological and physiological conditions as well as in lymphoid organs. Indeed, hypoxia-inducible factor 1α (HIF-1α) affects T cell survival and functions. Rai, an Shc family protein member, exerts pro-survival effects in hypoxic neuroblastoma cells. Since Rai is also expressed in T cells, we here investigated its role in hypoxic T cells. In this work, hypoxia differently affected cell survival, proapoptotic, and metabolic programs in T cells, depending upon Rai expression. By using Jurkat cells stably expressing Rai and splenocytes from Rai-/- mice, we demonstrated that Rai promotes T cell survival and affects cell metabolism under hypoxia. Upon exposure to hypoxia, Jurkat T cells expressing Rai show (a) higher HIF-1α protein levels; (b) a decreased cell death and increased Akt/extracellular-signal-regulated kinase phosphorylation; (c) a decreased expression of proapoptotic markers, including caspase activities and poly(ADP-ribose) polymerase cleavage; (d) an increased glucose and lactate metabolism; (e) an increased activation of nuclear factor-kB pathway. The opposite effects were observed in hypoxic splenocytes from Rai-/- mice. Thus, Rai plays an important role in hypoxic signaling and may be relevant in the protection of T cells against hypoxia.
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Affiliation(s)
- Mattia Criscuoli
- Cellular and Molecular Physiology Unit, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | | | - Irene Filippi
- Cellular and Molecular Physiology Unit, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy.,Istituto Toscano Tumori, Firenze, Italy
| | - Sara Monaci
- Cellular and Molecular Physiology Unit, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Giuditta Guerrini
- Cellular and Molecular Physiology Unit, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
| | - Bianca Crifò
- Department of Systems Biology, UCD Conway Institute and School of Medicine, University College Dublin, Dublin, Ireland
| | | | - Giuliana Pelicci
- Department of Experimental Oncology, European Institute of Oncology IRCCS, Milan, Italy.,Department of Translational Medicine, Piemonte Orientale University "Amedeo Avogadro", Novara, Italy
| | | | - Cormac T Taylor
- Department of Systems Biology, UCD Conway Institute and School of Medicine, University College Dublin, Dublin, Ireland
| | - Fabio Carraro
- Istituto Toscano Tumori, Firenze, Italy.,Department of Medical Biotechnologies, University of Siena, Siena, Italy
| | - Antonella Naldini
- Cellular and Molecular Physiology Unit, Department of Molecular and Developmental Medicine, University of Siena, Siena, Italy
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7
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Ulivieri C, De Tommaso D, Finetti F, Ortensi B, Pelicci G, D'Elios MM, Ballerini C, Baldari CT. A T Cell Suppressive Circuitry Mediated by CD39 and Regulated by ShcC/Rai Is Induced in Astrocytes by Encephalitogenic T Cells. Front Immunol 2019; 10:1041. [PMID: 31134091 PMCID: PMC6524536 DOI: 10.3389/fimmu.2019.01041] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2018] [Accepted: 04/23/2019] [Indexed: 12/12/2022] Open
Abstract
Multiple sclerosis is an autoimmune disease caused by autoreactive immune cell infiltration into the central nervous system leading to inflammation, demyelination, and neuronal loss. While myelin-reactive Th1 and Th17 are centrally implicated in multiple sclerosis pathogenesis, the local CNS microenvironment, which is shaped by both infiltrated immune cells and central nervous system resident cells, has emerged a key player in disease onset and progression. We have recently demonstrated that ShcC/Rai is as a novel astrocytic adaptor whose loss in mice protects from experimental autoimmune encephalomyelitis. Here, we have explored the mechanisms that underlie the ability of Rai-/- astrocytes to antagonize T cell-dependent neuroinflammation. We show that Rai deficiency enhances the ability of astrocytes to upregulate the expression and activity of the ectonucleotidase CD39, which catalyzes the conversion of extracellular ATP to the immunosuppressive metabolite adenosine, through both contact-dependent and-independent mechanisms. As a result, Rai-deficient astrocytes acquire an enhanced ability to suppress T-cell proliferation, which involves suppression of T cell receptor signaling and upregulation of the inhibitory receptor CTLA-4. Additionally, Rai-deficient astrocytes preferentially polarize to the neuroprotective A2 phenotype. These results identify a new mechanism, to which Rai contributes to a major extent, by which astrocytes modulate the pathogenic potential of autoreactive T cells.
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Affiliation(s)
| | | | | | - Barbara Ortensi
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy.,Department of Translational Medicine, Piemonte Orientale University "Amedeo Avogadro", Novara, Italy
| | - Giuliana Pelicci
- Department of Experimental Oncology, European Institute of Oncology, Milan, Italy.,Department of Translational Medicine, Piemonte Orientale University "Amedeo Avogadro", Novara, Italy
| | - Mario Milco D'Elios
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
| | - Clara Ballerini
- Department of Experimental and Clinical Medicine, University of Florence, Florence, Italy
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8
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Dong YD, Yuan YL, Yu HB, Tian GJ, Li DY. SHCBP1 is a novel target and exhibits tumor‑promoting effects in gastric cancer. Oncol Rep 2018; 41:1649-1657. [PMID: 30592290 PMCID: PMC6365712 DOI: 10.3892/or.2018.6952] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Accepted: 12/05/2018] [Indexed: 02/03/2023] Open
Abstract
The present study investigated the expression and potential influence of SHC SH2 domain-binding protein 1 (SHCBP1) in gastric cancer (GC) cells. SHCBP1 is closely related to cell proliferation and cell cycle progression, but its role in GC remains unclear. The TCGA database revealed that SHCBP1 is highly expressed in GC tissues. Furthermore, SHCBP1 was revealed to be highly expressed in GC cell lines MGC-803 and SGC-7901 cells, and downregulation of SHCBP1 significantly inhibited GC cell proliferation. Furthermore, SHCBP1 expression promoted cell cycle progression and inhibition of apoptosis. Since the CDK4, cyclin D1 and caspase family proteins play important roles in cell cycle and apoptosis regulation, it was examined whether there was an association between SHCBP1 and these signaling pathways in GC. Our results revealed that SHCBP1 promoted cell cycle progression by regulating the CDK4-cyclin D1 cascade and suppressed caspase-3, caspase PARP-dependent apoptotic pathways. Cell invasion and metastasis experiments also revealed that SHCBP1 promoted tumor growth and invasiveness. These tumor-promoting functions of SHCBP1 may provide a potential molecular basis for the diagnosis and targeted therapy of GC.
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Affiliation(s)
- Ya-Dong Dong
- Department of Hepatobiliary Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Yan-Li Yuan
- Zhengzhou Children's Hospital, Henan Children's Hospital, Children's Hospital of Zhengzhou University, Zhengzhou, Henan 450018, P.R. China
| | - Hai-Bo Yu
- Department of Hepatobiliary Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - Guang-Jin Tian
- Department of Hepatobiliary Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
| | - De-Yu Li
- Department of Hepatobiliary Pancreatic Surgery, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital, Zhengzhou, Henan 450003, P.R. China
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9
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Mabruk ZA, Ahmed SBM, Thomas AC, Prigent SA. The role of the ShcD and RET interaction in neuroblastoma survival and migration. Biochem Biophys Rep 2018; 13:99-108. [PMID: 29556564 PMCID: PMC5857170 DOI: 10.1016/j.bbrep.2018.01.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 01/02/2018] [Accepted: 01/11/2018] [Indexed: 01/15/2023] Open
Abstract
Preliminary screening data showed that the ShcD adaptor protein associates with the proto-oncogene RET receptor tyrosine kinase. In the present study, we aimed to investigate the molecular interaction between ShcD and RET in human neuroblastoma cells and study the functional impact of this interaction. We were able to show that ShcD immunoprecipitated with RET from SK-N-AS neuroblastoma cell lysates upon GDNF treatment. This result was validated by ShcD-RET co-localization, which was visualized using a fluorescence microscope. ShcD-RET coexpression promoted ShcD and RET endosomal localization, resulting in unexpected inhibition of the downstream ERK and AKT pathways. Interestingly, ShcD-RET association reduced the viability and migration of SK-N-AS cells. Although ShcD was previously shown to trigger melanoma cell migration and tumorigenesis, our data showed an opposite role for ShcD in neuroblastoma SK-N-AS cells via its association with RET in GDNF-treated cells. In conclusion, ShcD acts as a switch molecule that promotes contrasting biological responses depending on the stimulus ad cell type. The melanoma associated Shc adaptor, ShcD, is found to interact with Ret oncogene receptor in SK-N-AS neuroblastoma cells. ShcD and Ret coexpression favoures their endosomal localization. ShcD-Ret association has suppressed ERK and AKT signalling. The functional consequence of ShcD and Ret interaction was shown to negatively affect cell survival and cellular migration in.
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Key Words
- ALK,, Anaplastic Lymphoma Kinase
- Akt,, Protein kinase B;
- CMV,, Cytomegalovirus
- DMEM,, Dulbecoo Modified Eagle's Medium;
- DNA,, Deoxyribonucleic Acid
- ECL,, Enhanced Chemiluminescence;
- EGF,, Epidermal Growth Factor;
- EGFR,, Epidermal Growth Factor Receptor;
- ERK,, Extracellular Signal–Regulated Kinases;
- Endosomes
- FBS,, Fetal Bovine Serum
- FGFR,, fibroblast growth factor receptors
- GDNF
- GDNF,, Glial Cell Line-Derived Neurotropic Factor;
- GFLs,, GDNF Family Ligands;
- GFP,, Green Fluorescent Protein
- GPCR,, G-Protein Coupled Receptor
- GRB2,, Growth Factor Receptor-Bound Protein 2;
- HGFR,, hepatocyte growth factor receptor;
- HRP,, Horseradish Peroxidase
- IGF,, Insulin Growth Factor;
- LB,, Luria-Bertani
- MAP,, Mitogen-Activated Protein;
- MAPK,, Mitogen-Activated Protein Kinases
- MuSK,, Muscle Specific Kinase
- NFDM,, Non-Fat Dry Milk
- Neuroblastoma
- PBS,, Phosphate-Buffered Saline
- PBST,, Phosphate-Buffered Saline Tween
- PDGF,, Platelet-Derived Growth Factor;
- PI3K,, Phosphoinositide 3-Kinase
- PMSF,, Phenylmethylsulfonyl Fluoride
- PVDF,, Polyvinylidene Fluoride
- RET
- RET,, Rearranged During Transfection
- RT,, Room Temperature;
- RTKs,, Receptor Tyrosine Kinase
- SDS-PAGE,, Sodium Dodecylsulphate Polyacrylamide Gel Electrophoresis
- ShcD
- ShcD,, Src Homology And Collagen D
- Src,, Proto-Oncogene Tyrosine-Protein Kinase Src
- TKRs,, Tyrosine Kinase Receptor;
- TrkA/B/C,, Tropomyosin-Related Kinase Receptor A/B/C
- hrs,, Hours
- mAb,, Monoclonal Antibody
- min,, Minute
- pAb,, Polyclonal Antibody
- pTyr,, Phospho-Tyrosine
- rpm,, revolution per minute;
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Affiliation(s)
- Zeanap A Mabruk
- Sharjah Institute for Medical Research and College of Medicine University of Sharjah, United Arab Emirates
| | - Samrein B M Ahmed
- Sharjah Institute for Medical Research and College of Medicine University of Sharjah, United Arab Emirates
| | - Asha Caroline Thomas
- Sharjah Institute for Medical Research and College of Medicine University of Sharjah, United Arab Emirates
| | - Sally A Prigent
- Department of Molecular and Cellular Biology, University of Leicester, UK
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10
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Wills MKB, Keyvani Chahi A, Lau HR, Tilak M, Guild BD, New LA, Lu P, Jacquet K, Meakin SO, Bisson N, Jones N. Signaling adaptor ShcD suppresses extracellular signal-regulated kinase (Erk) phosphorylation distal to the Ret and Trk neurotrophic receptors. J Biol Chem 2017; 292:5748-5759. [PMID: 28213521 DOI: 10.1074/jbc.m116.770511] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 02/06/2017] [Indexed: 11/06/2022] Open
Abstract
Proteins of the Src homology and collagen (Shc) family are typically involved in signal transduction events involving Ras/MAPK and PI3K/Akt pathways. In the nervous system, they function proximal to the neurotrophic factors that regulate cell survival, differentiation, and neuron-specific characteristics. The least characterized homolog, ShcD, is robustly expressed in the developing and mature nervous system, but its contributions to neural cell circuitry are largely uncharted. We now report that ShcD binds to active Ret, TrkA, and TrkB neurotrophic factor receptors predominantly via its phosphotyrosine-binding (PTB) domain. However, in contrast to the conventional Shc adaptors, ShcD suppresses distal phosphorylation of the Erk MAPK. Accordingly, genetic knock-out of mouse ShcD enhances Erk phosphorylation in the brain. In cultured cells, this capacity is tightly aligned to phosphorylation of ShcD CH1 region tyrosine motifs, which serve as docking platforms for signal transducers, such as Grb2. Erk suppression is relieved through independent mutagenesis of the PTB domain and the CH1 tyrosine residues, and successive substitution of these tyrosines breaks the interaction between ShcD and Grb2, thereby promoting TrkB-Grb2 association. Erk phosphorylation can also be restored in the presence of wild type ShcD through Grb2 overexpression. Conversely, mutation of the ShcD SH2 domain results in enhanced repression of Erk. Although the SH2 domain is a less common binding interface in Shc proteins, we demonstrate that it associates with the Ptpn11 (Shp2) phosphatase, which in turn regulates ShcD tyrosine phosphorylation. We therefore propose a model whereby ShcD competes with neurotrophic receptors for Grb2 binding and opposes activation of the MAPK cascade.
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Affiliation(s)
- Melanie K B Wills
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Ava Keyvani Chahi
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Hayley R Lau
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Manali Tilak
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Brianna D Guild
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Laura A New
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Peihua Lu
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada
| | - Kévin Jacquet
- Cancer Research Centre, Quebec Network for Research on Protein Function, Engineering, and Applications (PROTEO) and Centre Hospitalier Universitaire de Québec Research Centre-Université Laval, Québec City, Québec G1R 2J6, Canada, and
| | - Susan O Meakin
- Department of Biochemistry, Western University, London, Ontario N6A 5B7, Canada
| | - Nicolas Bisson
- Cancer Research Centre, Quebec Network for Research on Protein Function, Engineering, and Applications (PROTEO) and Centre Hospitalier Universitaire de Québec Research Centre-Université Laval, Québec City, Québec G1R 2J6, Canada, and
| | - Nina Jones
- From the Department of Molecular and Cellular Biology, University of Guelph, Guelph, Ontario N1G 2W1, Canada,
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11
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Ulivieri C, Savino MT, Luccarini I, Fanigliulo E, Aldinucci A, Bonechi E, Benagiano M, Ortensi B, Pelicci G, D'Elios MM, Ballerini C, Baldari CT. The Adaptor Protein Rai/ShcC Promotes Astrocyte-Dependent Inflammation during Experimental Autoimmune Encephalomyelitis. THE JOURNAL OF IMMUNOLOGY 2016; 197:480-90. [PMID: 27288534 DOI: 10.4049/jimmunol.1502063] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Accepted: 05/13/2016] [Indexed: 01/13/2023]
Abstract
Th17 cells have been casually associated to the pathogenesis of autoimmune disease. We have previously demonstrated that Rai/ShcC, a member of the Shc family of adaptor proteins, negatively regulates Th17 cell differentiation and lupus autoimmunity. In this study, we have investigated the pathogenic outcome of the Th17 bias associated with Rai deficiency on multiple sclerosis development, using the experimental autoimmune encephalomyelitis (EAE) mouse model. We found that, unexpectedly, EAE was less severe in Rai(-/-) mice compared with their wild-type counterparts despite an enhanced generation of myelin-specific Th17 cells that infiltrated into the CNS. Nevertheless, when adoptively transferred into immunodeficient Rai(+/+) mice, these cells promoted a more severe disease compared with wild-type encephalitogenic Th17 cells. This paradoxical phenotype was caused by a dampened inflammatory response of astrocytes, which were found to express Rai, to IL-17. The results provide evidence that Rai plays opposite roles in Th17 cell differentiation and astrocyte activation, with the latter dominant over the former in EAE, highlighting this adaptor as a potential novel target for the therapy of multiple sclerosis.
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Affiliation(s)
- Cristina Ulivieri
- Department of Life Sciences, University of Siena, 2 53100, Siena, Italy;
| | | | | | | | | | - Elena Bonechi
- Department of Neurosciences, 6 50134 Florence, Italy
| | - Marisa Benagiano
- Department of Experimental and Clinical Medicine, University of Florence, 3 50134 Florence, Italy; and
| | - Barbara Ortensi
- Department of Experimental Oncology, European Institute of Oncology, 16 20139 Milan, Italy
| | - Giuliana Pelicci
- Department of Experimental Oncology, European Institute of Oncology, 16 20139 Milan, Italy
| | - Mario Milco D'Elios
- Department of Experimental and Clinical Medicine, University of Florence, 3 50134 Florence, Italy; and
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Sagi O, Budovsky A, Wolfson M, Fraifeld VE. ShcC proteins: brain aging and beyond. Ageing Res Rev 2015; 19:34-42. [PMID: 25462193 DOI: 10.1016/j.arr.2014.11.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2014] [Revised: 11/08/2014] [Accepted: 11/17/2014] [Indexed: 02/02/2023]
Abstract
To date, most studies of Shc family of signaling adaptor proteins have been focused on the near-ubiquitously expressed ShcA, indicating its relevance to age-related diseases and longevity. Although the role of the neuronal ShcC protein is much less investigated, accumulated evidence suggests its importance for neuroprotection against such aging-associated conditions as brain ischemia and oxidative stress. Here, we summarize more than decade of studies on the ShcC expression and function in normal brain, age-related brain pathologies and immune disorders with a focus on the interactions of ShcC with signaling proteins/pathways, and the possible implications of these interactions for changes associated with aging.
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Affiliation(s)
- Orli Sagi
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Arie Budovsky
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel; Judea Regional Research & Development Center, Carmel 90404, Israel
| | - Marina Wolfson
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel
| | - Vadim E Fraifeld
- The Shraga Segal Department of Microbiology, Immunology and Genetics, Center for Multidisciplinary Research on Aging, Ben-Gurion University of the Negev, Beer Sheva 84105, Israel.
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Whole-blood gene expression profiling in ankylosing spondylitis identifies novel candidate genes that may contribute to the inflammatory and tissue-destructive disease aspects. Cell Immunol 2013; 286:59-64. [PMID: 24326123 DOI: 10.1016/j.cellimm.2013.10.009] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2013] [Revised: 10/25/2013] [Accepted: 10/31/2013] [Indexed: 01/19/2023]
Abstract
We performed a comprehensive gene expression analysis to identify differentially expressed genes (DEGs) between AS (ankylosing spondylitis) and health controls. A total of 1454 DEGs were obtained, including 919 up-regulated genes and 535 down-regulated genes. There were 218 interactions and 224 pairs in the conPPI network. Topological analysis showed that 11 genes had a close relationship with AS. GO (gene ontology) functional enrichment analysis of the two modules showed that the DEGs in conPPI mainly participated in the biologic process of immune response. The KEGG pathway analysis showed that most DEGs in the two modules were enriched into cell receptor signaling pathway, natural killer cell mediated cytotoxicity and primary immunodeficiency. We hypothesized that these DEGs associated with immune response DEGs might provide basic for depth understanding of the AS development.
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Savino MT, Ulivieri C, Emmi G, Prisco D, De Falco G, Ortensi B, Beccastrini E, Emmi L, Pelicci G, D'Elios MM, Baldari CT. The Shc family protein adaptor, Rai, acts as a negative regulator of Th17 and Th1 cell development. J Leukoc Biol 2013; 93:549-59. [PMID: 23345394 DOI: 10.1189/jlb.0712331] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Rai, a Shc adapter family member, acts as a negative regulator of antigen receptor signaling in T and B cells. Rai(-/-) mice develop lupus-like autoimmunity associated to the spontaneous activation of self-reactive lymphocytes. Here, we have addressed the potential role of Rai in the development of the proinflammatory Th1 and Th17 subsets, which are centrally implicated in the pathogenesis of a number of autoimmune diseases, including lupus. We show that Rai(-/-) mice display a spontaneous Th1/Th17 bias. In vitro polarization experiments on naive and effector/memory CD4(+) T cells demonstrate that Rai(-/-) favors the development and expansion of Th17 but not Th1 cells, indicating that Rai modulates TCR signaling to antagonize the pathways driving naive CD4(+) T cell differentiation to the Th17 lineage, while indirectly limiting Th1 cell development in vivo. Th1 and Th17 cell infiltrates were found in the kidneys of Rai(-/-) mice, providing evidence that Rai(-/-) contributes to the development of lupus nephritis, not only by enhancing lymphocyte activation but also by promoting the development and expansion of proinflammatory effector T cells. Interestingly, T cells from SLE patients were found to have a defect in Rai expression, suggesting a role for Rai in disease pathogenesis.
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