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Wang T, Kaneko S, Kriukov E, Alvarez D, Lam E, Wang Y, La Manna S, Marasco D, Fernandez-Gonzalez A, Mitsialis SA, Kourembanas S, Stahl A, Chen M, Xu H, Baranov P, Cai G, von Andrian UH, Sun Y. SOCS3 regulates pathological retinal angiogenesis through modulating SPP1 expression in microglia and macrophages. Mol Ther 2024; 32:1425-1444. [PMID: 38504518 PMCID: PMC11081920 DOI: 10.1016/j.ymthe.2024.03.025] [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: 11/01/2023] [Revised: 02/18/2024] [Accepted: 03/15/2024] [Indexed: 03/21/2024] Open
Abstract
Pathological ocular angiogenesis has long been associated with myeloid cell activation. However, the precise cellular and molecular mechanisms governing the intricate crosstalk between the immune system and vascular changes during ocular neovascularization formation remain elusive. In this study, we demonstrated that the absence of the suppressor of cytokine signaling 3 (SOCS3) in myeloid cells led to a substantial accumulation of microglia and macrophage subsets during the neovascularization process. Our single-cell RNA sequencing data analysis revealed a remarkable increase in the expression of the secreted phosphoprotein 1 (Spp1) gene within these microglia and macrophages, identifying subsets of Spp1-expressing microglia and macrophages during neovascularization formation in angiogenesis mouse models. Notably, the number of Spp1-expressing microglia and macrophages exhibited further elevation during neovascularization in mice lacking myeloid SOCS3. Moreover, our investigation unveiled the Spp1 gene as a direct transcriptional target gene of signal transducer and activator of transcription 3. Importantly, pharmaceutical activation of SOCS3 or blocking of SPP1 resulted in a significant reduction in pathological neovascularization. In conclusion, our study highlights the pivotal role of the SOCS3/STAT3/SPP1 axis in the regulation of pathological retinal angiogenesis.
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Affiliation(s)
- Tianxi Wang
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Satoshi Kaneko
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Emil Kriukov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - David Alvarez
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA
| | - Enton Lam
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Yidi Wang
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA
| | - Sara La Manna
- Department of Pharmacy, University of Naples "Federico II", 80138 Naples, Italy
| | - Daniela Marasco
- Department of Pharmacy, University of Naples "Federico II", 80138 Naples, Italy
| | - Angeles Fernandez-Gonzalez
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - S Alex Mitsialis
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Stella Kourembanas
- Division of Newborn Medicine, Department of Pediatrics, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA
| | - Andreas Stahl
- Department of Ophthalmology, University Medicine Greifswald, 17475 Greifswald, Germany
| | - Mei Chen
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Heping Xu
- Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Petr Baranov
- Department of Ophthalmology, The Schepens Eye Research Institute of Massachusetts Eye and Ear, Harvard Medical School, Boston, MA 02114, USA
| | - Guoshuai Cai
- Department of Surgery, College of Medicine, University of Florida, Gainesville, FL 32610, USA
| | - Ulrich H von Andrian
- Department of Immunology and HMS Center for Immune Imaging, Harvard Medical School, Boston, MA 02115, USA; The Ragon Institute of MGH, MIT, and Harvard, Cambridge, MA 02139, USA
| | - Ye Sun
- Department of Ophthalmology, Boston Children's Hospital, Harvard Medical School, Boston, MA 02115, USA.
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Somade OT, Oyinloye BE, Ajiboye BO, Osukoya OA. Syringic acid demonstrates an anti-inflammatory effect via modulation of the NF-κB-iNOS-COX-2 and JAK-STAT signaling pathways in methyl cellosolve-induced hepato-testicular inflammation in rats. Biochem Biophys Rep 2023; 34:101484. [PMID: 37197735 PMCID: PMC10184048 DOI: 10.1016/j.bbrep.2023.101484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/27/2023] [Accepted: 05/02/2023] [Indexed: 05/19/2023] Open
Abstract
Syringic acid (SACI) is an emerging nutraceutical and antioxidant used in modern Chinese medicine. It has potential neuroprotective, anti-hyperglycemic, and anti-angiogenic properties. Methyl cellosolve (MCEL) has been reported to induce tissue inflammation in the testis, kidney, liver, and lung. This study aimed to investigate the effect and probable mechanism of action of SACI on MCEL-induced hepatic and testicular inflammation in male rats. Compared to the control group, administration of MCEL to rats significantly increased the levels of IL-6, TNF-α, iNOS, COX-2, and NF-κB in the liver and testis. Additionally, the total mRNA expressions of JAK1 (in the liver only), STAT1, and SOCS1 were significantly increased in both the liver and testis, while testicular JAK1 total mRNA levels were significantly decreased. The expression of PIAS1 protein was significantly higher in the liver and testis. Treatments with SACI at 25 (except liver iNOS), 50, and 75 mg/kg significantly decreased the levels of IL-6, TNF-α, iNOS, COX-2, and NF-κB compared to the control group. Furthermore, the total mRNA expressions of JAK1 and SOCS1 in the liver were significantly reduced by all doses of SACI investigated, while the total mRNA levels of liver and testis STAT1 were significantly reduced by 25 and 50 mg/kg of SACI only. In the testis, the mRNA level of SOCS1 was significantly reduced by all doses of SACI compared to MCEL only. Additionally, SACI (at 75 mg/kg) significantly reduced PIAS1 protein expression in the liver, while in the testis, SACI at all investigated doses significantly reduced the expression of PIAS1. In conclusion, SACI demonstrated a hepatic and testicular anti-inflammatory effect by inhibiting the MCEL-induced activation of the NF-κB and JAK-STAT signaling pathways in rats.
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Affiliation(s)
- Oluwatobi T. Somade
- Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Corresponding author. Department of Biochemistry, College of Biosciences, Federal University of Agriculture, Abeokuta, Nigeria.
| | - Babatunji E. Oyinloye
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Biotechnology and Structural Biology (BSB) Group, Department of Biochemistry and Microbiology, University of Zululand, KwaDlangezwa, 3886, South Africa
| | - Basiru O. Ajiboye
- Institute of Drug Research and Development, S.E Bogoro Center, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
- Phytomedicine and Molecular Toxicology Research Laboratory, Department of Biochemistry, Federal University Oye Ekiti, Oye, Ekiti State, Nigeria
| | - Olukemi A. Osukoya
- Phytomedicine, Biochemical Toxicology and Biotechnology Research Laboratories, Department of Biochemistry, College of Sciences, Afe Babalola University, PMB 5454, Ado-Ekiti, 360001, Nigeria
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3
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Li X, Yang Z, Chen B, Gu L, Tian G, Sui X. SOCS3 as a potential driver of lung metastasis in colon cancer patients. Front Immunol 2023; 14:1088542. [PMID: 37025997 PMCID: PMC10070831 DOI: 10.3389/fimmu.2023.1088542] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 02/23/2023] [Indexed: 04/08/2023] Open
Abstract
Background The suppressor of cytokine signaling 3 (SOCS3) is the negative feedback regulator of the JAK-STAT signaling pathway. The purpose of our study was to investigate the SOCS3 status in colon primary tumor and lung metastasis and its relationship with macrophages. Methods The SOCS3 expression pattern and its relationship with the immune response in pan-cancer was investigated using multiple methods. Samples and corresponding clinical information of 32 colon cancer patients with lung metastasis were collected, and the CD68, CD163, and SOCS3 status were conducted using immunohistochemistry (IHC). The relationship between SOCS3 status and macrophage markers was analyzed. Besides, we explored the molecular mechanisms of SOCS3 in lung metastasis via the TCGA database. Results High SOCS3 expression was more inclined to poor prognosis and was positively correlated with main immune cell infiltration in almost each cancer type, especially in colon cancer. Compared with the colon primary tumor, lung metastasis harbored higher CD163 and SOCS3 expression, and high SOCS3 expression was more likely to be associated with high CD163 expression in lung metastasis. Besides, the exceptional differentially expressed genes in lung metastasis significantly enriched in immune responses and regulations. Conclusions SOCS3 possessed value as a prognostic marker and target for immunotherapeutic intervention in different tumors and might be a potential target of tumor progression and tumor immunotherapy in colon cancer.
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Affiliation(s)
- Xuejie Li
- Department of Pathology, The First Affiliated Hospital of Medical School of Zhejiang University, Hangzhou, China
| | - Zuyi Yang
- Department of Hematology and Oncology, the Affiliated Hospital of Hangzhou Normal University, College of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Bi Chen
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
| | - Lei Gu
- Department of Hematology and Oncology, the Affiliated Hospital of Hangzhou Normal University, College of Medicine, Hangzhou Normal University, Hangzhou, China
| | - Guoyan Tian
- Department of Hematology and Oncology, the Affiliated Hospital of Hangzhou Normal University, College of Medicine, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Xinbing Sui, ; Guoyan Tian,
| | - Xinbing Sui
- School of Pharmacy, Hangzhou Normal University, Hangzhou, China
- Key Laboratory of Elemene Class Anti-cancer Chinese Medicine of Zhejiang Province, Hangzhou Normal University, Hangzhou, China
- *Correspondence: Xinbing Sui, ; Guoyan Tian,
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La Manna S, Fortuna S, Leone M, Mercurio FA, Di Donato I, Bellavita R, Grieco P, Merlino F, Marasco D. Ad-hoc modifications of cyclic mimetics of SOCS1 protein: Structural and functional insights. Eur J Med Chem 2022; 243:114781. [PMID: 36152385 DOI: 10.1016/j.ejmech.2022.114781] [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: 07/14/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/24/2022]
Abstract
Suppressors of cytokine signaling 1 (SOCS1) protein, a negative regulator of the Janus kinase (JAK)-signal transducer and activator of transcription (STAT) pathway, possesses a small kinase inhibitory region (KIR) involved in the inhibition of JAK kinases. Several studies showed that mimetics of KIR-SOCS1 can be potent therapeutics in several disorders (e.g., neurological, autoimmune or cardiovascular diseases). In this work, starting from a recently identified cyclic peptidomimetic of KIR-SOCS1, icPS5(Nal1), to optimize the peptide structure and improve its biological activity, we designed novel derivatives, containing crucial amino acids substitutions and/or modifications affecting the ring size. By combining microscale thermophoresis (MST), Circular Dichroism (CD), Nuclear Magnetic Resonance (NMR) and computational studies, we showed that the cycle size plays a key role in the interaction with JAK2 and the substitution of native residues with un-natural building blocks is a valid tool to maintain low-micromolar affinity toward JAK2, greatly increasing their serum stability. These findings contribute to increase the structural knowledge required for the recognition of SOCS1/JAK2 and to progress towards their conversion into more drug-like compounds.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Sara Fortuna
- CONCEPT Lab, Istituto Italiano di Tecnologia (IIT), Via E. Melen, 83, I-16152, Genova, Italy
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging, CNR, 80145, Naples, Italy
| | - Flavia A Mercurio
- Institute of Biostructures and Bioimaging, CNR, 80145, Naples, Italy
| | - Ilaria Di Donato
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Rosa Bellavita
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Paolo Grieco
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Francesco Merlino
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy
| | - Daniela Marasco
- Department of Pharmacy, University of Naples "Federico II", 80131, Naples, Italy.
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El Deeb S, Al-Harrasi A, Khan A, Al-Broumi M, Al-Thani G, Alomairi M, Elumalai P, Sayed RA, Ibrahim AE. Microscale thermophoresis as a powerful growing analytical technique for the investigation of biomolecular interaction and the determination of binding parameters. Methods Appl Fluoresc 2022; 10. [PMID: 35856854 DOI: 10.1088/2050-6120/ac82a6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/20/2022] [Indexed: 11/12/2022]
Abstract
The in vitro panel of technologies to address biomolecular interactions are in play, however microscale thermophoresis is continuously increasing in use to represent a key player in this arena. This review highlights the usefulness of microscale thermophoresis in the determination of molecular and biomolecular affinity interactions. This work reviews the literature from January 2016 to January 2022 about microscale thermophoresis. It gives a summarized overview about both the state-of the art and the development in the field of microscale thermophoresis. The principle of microscale thermophoresis is also described supported with self-created illustrations. Moreover, some recent advances are mentioned that showing application of the technique in investigating biomolecular interactions in different fields. Finally, advantages as well as drawbacks of the technique in comparison with other competing techniques are summarized.
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Affiliation(s)
- Sami El Deeb
- Technische Universitat Braunschweig, Braunschweig, Braunschweig, Niedersachsen, 38106, GERMANY
| | | | - Ajmal Khan
- University of Nizwa, Nizwa, Nizwa, 616, OMAN
| | | | | | | | | | - Rania A Sayed
- Pharmaceutical analytical chemistry department, Zagazig University, Zagazig, Zagazig, 44519, EGYPT
| | - Adel Ehab Ibrahim
- Pharmaceutical Analytical Chemistry, Port Said University, Port Said, Port Said, 42526, EGYPT
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6
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La Manna S, Leone M, Mercurio FA, Florio D, Marasco D. Structure-Activity Relationship Investigations of Novel Constrained Chimeric Peptidomimetics of SOCS3 Protein Targeting JAK2. Pharmaceuticals (Basel) 2022; 15:ph15040458. [PMID: 35455455 PMCID: PMC9031227 DOI: 10.3390/ph15040458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 03/31/2022] [Accepted: 04/07/2022] [Indexed: 12/03/2022] Open
Abstract
SOCS3 (suppressor of cytokine signaling 3) protein suppresses cytokine-induced inflammation and its deletion in neurons or immune cells increases the pathological growth of blood vessels. Recently, we designed several SOCS3 peptidomimetics by assuming as template structures the interfacing regions of the ternary complex constituted by SOCS3, JAK2 (Janus Kinase 2) and gp130 (glycoprotein 130) proteins. A chimeric peptide named KIRCONG chim, including non-contiguous regions demonstrated able to bind to JAK2 and anti-inflammatory and antioxidant properties in VSMCs (vascular smooth muscle cells). With the aim to improve drug-like features of KIRCONG, herein we reported novel cyclic analogues bearing different linkages. In detail, in two of them hydrocarbon cycles of different lengths were inserted at positions i/i+5 and i/i+7 to improve helical conformations of mimetics. Structural features of cyclic compounds were investigated by CD (Circular Dichroism) and NMR (Nuclear Magnetic Resonance) spectroscopies while their ability to bind to catalytic domain of JAK2 was assessed through MST (MicroScale Thermophoresis) assay as well as their stability in biological serum. Overall data indicate a crucial role exerted by the length and the position of the cycle within the chimeric structure and could pave the way to the miniaturization of SOCS3 protein for therapeutic aims.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, Research Center on Bioactive Peptides (CIRPEB), University of Naples “Federico II”, 80131 Naples, Italy; (S.L.M.); (D.F.)
| | - Marilisa Leone
- Institute of Biostructures and Bioimaging (CNR), 80145 Naples, Italy; (M.L.); (F.A.M.)
| | - Flavia Anna Mercurio
- Institute of Biostructures and Bioimaging (CNR), 80145 Naples, Italy; (M.L.); (F.A.M.)
| | - Daniele Florio
- Department of Pharmacy, Research Center on Bioactive Peptides (CIRPEB), University of Naples “Federico II”, 80131 Naples, Italy; (S.L.M.); (D.F.)
| | - Daniela Marasco
- Department of Pharmacy, Research Center on Bioactive Peptides (CIRPEB), University of Naples “Federico II”, 80131 Naples, Italy; (S.L.M.); (D.F.)
- Correspondence: ; Tel.: +39-0812534607
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7
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La Manna S, De Benedictis I, Marasco D. Proteomimetics of Natural Regulators of JAK-STAT Pathway: Novel Therapeutic Perspectives. Front Mol Biosci 2022; 8:792546. [PMID: 35047557 PMCID: PMC8762217 DOI: 10.3389/fmolb.2021.792546] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2021] [Accepted: 11/29/2021] [Indexed: 12/16/2022] Open
Abstract
The JAK-STAT pathway is a crucial cellular signaling cascade, including an intricate network of Protein-protein interactions (PPIs) responsible for its regulation. It mediates the activities of several cytokines, interferons, and growth factors and transduces extracellular signals into transcriptional programs to regulate cell growth and differentiation. It is essential for the development and function of both innate and adaptive immunities, and its aberrant deregulation was highlighted in neuroinflammatory diseases and in crucial mechanisms for tumor cell recognition and tumor-induced immune escape. For its involvement in a multitude of biological processes, it can be considered a valuable target for the development of drugs even if a specific focus on possible side effects associated with its inhibition is required. Herein, we review the possibilities to target JAK-STAT by focusing on its natural inhibitors as the suppressor of cytokine signaling (SOCS) proteins. This protein family is a crucial checkpoint inhibitor in immune homeostasis and a valuable target in immunotherapeutic approaches to cancer and immune deficiency disorders.
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Affiliation(s)
| | | | - Daniela Marasco
- Department of Pharmacy, University of Naples “Federico II”, Naples, Italy
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8
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Low ZY, Wen Yip AJ, Chow VTK, Lal SK. The Suppressor of Cytokine Signalling family of proteins and their potential impact on COVID-19 disease progression. Rev Med Virol 2021; 32:e2300. [PMID: 34546610 PMCID: PMC8646547 DOI: 10.1002/rmv.2300] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Revised: 09/06/2021] [Accepted: 09/08/2021] [Indexed: 12/16/2022]
Abstract
The family of Suppressor of Cytokine Signalling (SOCS) proteins plays pivotal roles in cytokine and immune regulation. Despite their key roles, little attention has been given to the SOCS family as compared to other feedback regulators. To date, SOCS proteins have been found to be exploited by viruses such as herpes simplex virus (HSV), hepatitis B virus (HBV), hepatitis C virus (HCV), Zika virus, respiratory syncytial virus (RSV), Ebola virus, influenza A virus (IAV) and SARS-CoV, just to name a few. The hijacking and subsequent upregulation of the SOCS proteins upon viral infection, suppress the associated JAK-STAT signalling activities, thereby reducing the host antiviral response and promoting viral replication. Two SOCS protein family members, SOCS1 and SOCS3 are well-studied and their roles in the JAK-STAT signalling pathway are defined as attenuating interferon (IFN) signalling upon viral infection. The upregulation of SOCS protein by SARS-CoV during the early stages of infection implies strong similarity with SARS-CoV-2, given their closely related genomic organisation. Thus, this review aims to outline the plausibility of SOCS protein inhibitors as a potential therapeutic regimen for COVID-19 patients. We also discuss the antagonists against SOCS protein to offer an overview on the previous 'successes' of SOCS protein inhibition in various viral infections that may portray possible clues for COVID-19 disease management.
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Affiliation(s)
- Zheng Yao Low
- School of Science, Monash University, Bandar Sunway, Selangor, Malaysia
| | | | - Vincent T K Chow
- Infectious Diseases Translational Research Program, Department of Microbiology and Immunology, Yong Loo Lin School of Medicine, National University of Singapore, Singapore
| | - Sunil K Lal
- School of Science, Monash University, Bandar Sunway, Selangor, Malaysia.,Tropical Medicine and Biology Platform, Monash University, Bandar Sunway, Selangor, Malaysia
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9
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Tao H, Shi P, Zhao XD, Xuan HY, Gong WH, Ding XS. DNMT1 deregulation of SOCS3 axis drives cardiac fibroblast activation in diabetic cardiac fibrosis. J Cell Physiol 2021; 236:3481-3494. [PMID: 32989761 DOI: 10.1002/jcp.30078] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2020] [Revised: 09/13/2020] [Accepted: 09/15/2020] [Indexed: 11/09/2022]
Abstract
Cardiac fibrosis is one of the main pathological manifestations of diabetic cardiomyopathy (DCM). Cardiac fibroblast activation is a key effector of cells resulting in diabetic cardiac fibrosis. However, the underlying mechanism of cardiac fibroblast activation and diabetic cardiac fibrosis remains unclear. Accumulating evidence suggests that DNA methylation alterations play a central role in cardiac fibroblast activation. In this study, we demonstrated that DNA methyltransferase 1 (DNMT1)-mediated suppression of cytokine signaling 3 (SOCS3) promoter hypermethylation leads to downregulation of SOCS3 expression in diabetic cardiac fibrosis. High glucose-induced expression of DNMT1 was increased in cardiac fibroblasts, while the expression of SOCS3 was decreased. Downregulation of SOCS3 facilitated activation of STAT3 to promote cardiac fibroblast activation and collagen deposition. Genetic or pharmacological inactivation of DNMT1 reversed the activated phenotype of cardiac fibroblasts. Clinically, we observed a significant inverse correlation between DNMT1 and SOCS3 expression levels, and loss of SOCS3 expression or increased expression of DNMT1. Taken together, these findings identify DNMT1 silencing of SOCS3 axis as a driver of cardiac fibroblast activation in diabetic cardiac fibrosis. These results provide a scientific and new explanation of the underlying mechanism of diabetic cardiac fibrosis.
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Affiliation(s)
- Hui Tao
- Department of Cardiothoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, China
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
| | - Peng Shi
- Department of Cardiothoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, China
| | - Xu-Dong Zhao
- Department of Cardiothoracic Surgery, The Second Hospital of Anhui Medical University, Hefei, China
| | - Hai-Yang Xuan
- Department of Cardiology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei, Anhui, China
| | - Wen-Hui Gong
- Department of Cardiovascular Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xuan-Sheng Ding
- School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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10
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Computational Evolution of Beta-2-Microglobulin Binding Peptides for Nanopatterned Surface Sensors. Int J Mol Sci 2021; 22:ijms22020812. [PMID: 33467468 PMCID: PMC7831021 DOI: 10.3390/ijms22020812] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Revised: 12/24/2020] [Accepted: 01/04/2021] [Indexed: 11/17/2022] Open
Abstract
The bottom-up design of smart nanodevices largely depends on the accuracy by which each of the inherent nanometric components can be functionally designed with predictive methods. Here, we present a rationally designed, self-assembled nanochip capable of capturing a target protein by means of pre-selected binding sites. The sensing elements comprise computationally evolved peptides, designed to target an arbitrarily selected binding site on the surface of beta-2-Microglobulin (β2m), a globular protein that lacks well-defined pockets. The nanopatterned surface was generated by an atomic force microscopy (AFM)-based, tip force-driven nanolithography technique termed nanografting to construct laterally confined self-assembled nanopatches of single stranded (ss)DNA. These were subsequently associated with an ssDNA-peptide conjugate by means of DNA-directed immobilization, therefore allowing control of the peptide's spatial orientation. We characterized the sensitivity of such peptide-containing systems against β2m in solution by means of AFM-based differential topographic imaging and surface plasmon resonance (SPR) spectroscopy. Our results show that the confined peptides are capable of specifically capturing β2m from the surface-liquid interface with micromolar affinity, hence providing a viable proof-of-concept for our approach to peptide design.
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11
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Santos MRG, Queiroz-Junior CM, Madeira MFM, Machado FS. Suppressors of cytokine signaling (SOCS) proteins in inflammatory bone disorders. Bone 2020; 140:115538. [PMID: 32730926 DOI: 10.1016/j.bone.2020.115538] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/17/2020] [Revised: 06/18/2020] [Accepted: 07/09/2020] [Indexed: 02/07/2023]
Abstract
Suppressor of cytokine signaling (SOCS) proteins are significant regulators of cellular immune responses. Therefore, the role of SOCS in bone-inflammatory disorders, including arthritis and periodontitis, has been investigated in experimental and clinical conditions. Recent evidence shows that SOCS proteins are expressed in major bone-related cells, including osteoblasts, osteoclasts, chondrocytes and synoviocytes, although their direct role in these cells is not fully described. These signaling molecules, especially SOCS1, 2 and 3, were shown to play critical roles in the control of bone resorption associated to inflammation. This review focuses on the involvement of SOCS proteins in inflammatory bone remodeling, including their direct and indirect role in the control of osteoclast hyperactivation, during arthritis and periodontitis. The description of the roles of SOCS proteins in inflammatory bone diseases highlights the pathways involved in the pathophysiology of these conditions and, thus, may contribute to the development and improvement of potential therapeutic interventions.
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Affiliation(s)
- Mariana Rates Gonzaga Santos
- Department of Biochemistry and Immunology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Celso M Queiroz-Junior
- Department of Morphology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil
| | - Mila Fernandes Moreira Madeira
- Department of Microbiology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil.
| | - Fabiana Simão Machado
- Department of Biochemistry and Immunology, Institute of Biological Science, Federal University of Minas Gerais, Belo Horizonte, Brazil; Program in Health Sciences: Infectious Diseases and Tropical Medicine/Interdisciplinary Laboratory of Medical Investigation, Faculty of Medicine, Federal University of Minas Gerais, Belo Horizonte, Brazil.
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La Manna S, Lopez-Sanz L, Bernal S, Jimenez-Castilla L, Prieto I, Morelli G, Gomez-Guerrero C, Marasco D. Antioxidant Effects of PS5, a Peptidomimetic of Suppressor of Cytokine Signaling 1, in Experimental Atherosclerosis. Antioxidants (Basel) 2020; 9:antiox9080754. [PMID: 32824091 PMCID: PMC7465353 DOI: 10.3390/antiox9080754] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2020] [Revised: 08/07/2020] [Accepted: 08/10/2020] [Indexed: 12/13/2022] Open
Abstract
The chronic activation of the Janus kinase/signal transducer and activator of the transcription (JAK/STAT) pathway is linked to oxidative stress, inflammation and cell proliferation. Suppressors of cytokine signaling (SOCS) proteins negatively regulate the JAK/STAT, and SOCS1 possesses a small kinase inhibitory region (KIR) involved in the inhibition of JAK kinases. Several studies showed that KIR-SOCS1 mimetics can be considered valuable therapeutics in several disorders (e.g., diabetes, neurological disorders and atherosclerosis). Herein, we investigated the antioxidant and atheroprotective effects of PS5, a peptidomimetic of KIR-SOCS1, both in vitro (vascular smooth muscle cells and macrophages) and in vivo (atherosclerosis mouse model) by analyzing gene expression, intracellular O2•− production and atheroma plaque progression and composition. PS5 was revealed to be able to attenuate NADPH oxidase (NOX1 and NOX4) and pro-inflammatory gene expression, to upregulate antioxidant genes and to reduce atheroma plaque size, lipid content and monocyte/macrophage accumulation. These findings confirm that KIR-SOCS1-based drugs could be excellent antioxidant agents to contrast atherosclerosis.
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Affiliation(s)
- Sara La Manna
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi- University of Naples “Federico II”, 80134 Naples, Italy; (S.L.M.); (G.M.)
- Renal and Vascular Inflammation Group, Instituto de Investigacion Sanitaria-Fundacion Jimenez Diaz (IIS-FJD), Autonoma University of Madrid (UAM), 28040 Madrid, Spain; (L.L.-S.); (S.B.); (L.J.-C.); (I.P.)
| | - Laura Lopez-Sanz
- Renal and Vascular Inflammation Group, Instituto de Investigacion Sanitaria-Fundacion Jimenez Diaz (IIS-FJD), Autonoma University of Madrid (UAM), 28040 Madrid, Spain; (L.L.-S.); (S.B.); (L.J.-C.); (I.P.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Susana Bernal
- Renal and Vascular Inflammation Group, Instituto de Investigacion Sanitaria-Fundacion Jimenez Diaz (IIS-FJD), Autonoma University of Madrid (UAM), 28040 Madrid, Spain; (L.L.-S.); (S.B.); (L.J.-C.); (I.P.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Luna Jimenez-Castilla
- Renal and Vascular Inflammation Group, Instituto de Investigacion Sanitaria-Fundacion Jimenez Diaz (IIS-FJD), Autonoma University of Madrid (UAM), 28040 Madrid, Spain; (L.L.-S.); (S.B.); (L.J.-C.); (I.P.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Ignacio Prieto
- Renal and Vascular Inflammation Group, Instituto de Investigacion Sanitaria-Fundacion Jimenez Diaz (IIS-FJD), Autonoma University of Madrid (UAM), 28040 Madrid, Spain; (L.L.-S.); (S.B.); (L.J.-C.); (I.P.)
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
| | - Giancarlo Morelli
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi- University of Naples “Federico II”, 80134 Naples, Italy; (S.L.M.); (G.M.)
| | - Carmen Gomez-Guerrero
- Spanish Biomedical Research Centre in Diabetes and Associated Metabolic Disorders (CIBERDEM), 28040 Madrid, Spain
- Correspondence: (C.G.-G.); (D.M.)
| | - Daniela Marasco
- Department of Pharmacy, CIRPEB: Centro Interuniversitario di Ricerca sui Peptidi Bioattivi- University of Naples “Federico II”, 80134 Naples, Italy; (S.L.M.); (G.M.)
- Correspondence: (C.G.-G.); (D.M.)
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