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Basak M, Das K, Mahata T, Kumar D, Nagar N, Poluri KM, Kumar P, Das P, Stewart A, Maity B. RGS7 balances acetylation/de-acetylation of p65 to control chemotherapy-dependent cardiac inflammation. Cell Mol Life Sci 2023; 80:255. [PMID: 37589751 PMCID: PMC11071981 DOI: 10.1007/s00018-023-04895-5] [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: 04/17/2023] [Revised: 06/28/2023] [Accepted: 07/22/2023] [Indexed: 08/18/2023]
Abstract
Cardiotoxicity remains a major limitation in the clinical utility of anthracycline chemotherapeutics. Regulator of G-protein Signaling 7 (RGS7) and inflammatory markers are up-regulated in the hearts of patients with a history of chemotherapy particularly those with reduced left-ventricular function. RGS7 knockdown in either the murine myocardium or isolated murine ventricular cardiac myocytes (VCM) or cultured human VCM provided marked protection against doxorubicin-dependent oxidative stress, NF-κB activation, inflammatory cytokine production, and cell death. In exploring possible mechanisms causally linking RGS7 to pro-inflammatory signaling cascades, we found that RGS7 forms a complex with acetylase Tip60 and deacetylase sirtuin 1 (SIRT1) and controls the acetylation status of the p65 subunit of NF-κB. In VCM, the detrimental impact of RGS7 could be mitigated by inhibiting Tip60 or activating SIRT1, indicating that the ability of RGS7 to modulate cellular acetylation capacity is critical for its pro-inflammatory actions. Further, RGS7-driven, Tip60/SIRT1-dependent cytokines released from ventricular cardiac myocytes and transplanted onto cardiac fibroblasts increased oxidative stress, markers of transdifferentiation, and activity of extracellular matrix remodelers emphasizing the importance of the RGS7-Tip60-SIRT1 complex in paracrine signaling in the myocardium. Importantly, while RGS7 overexpression in heart resulted in sterile inflammation, fibrotic remodeling, and compromised left-ventricular function, activation of SIRT1 counteracted the detrimental impact of RGS7 in heart confirming that RGS7 increases acetylation of SIRT1 substrates and thereby drives cardiac dysfunction. Together, our data identify RGS7 as an amplifier of inflammatory signaling in heart and possible therapeutic target in chemotherapeutic drug-induced cardiotoxicity.
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Affiliation(s)
- Madhuri Basak
- Centre of Biomedical Research (CBMR), SGPGI, SGPGI Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Kiran Das
- Centre of Biomedical Research (CBMR), SGPGI, SGPGI Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Tarun Mahata
- Centre of Biomedical Research (CBMR), SGPGI, SGPGI Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Dinesh Kumar
- Centre of Biomedical Research (CBMR), SGPGI, SGPGI Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India
| | - Nupur Nagar
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Krishna Mohan Poluri
- Department of Biosciences and Bioengineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Pranesh Kumar
- Institute of Pharmaceutical Sciences, University of Lucknow, Lucknow, Uttar Pradesh, 226025, India
| | - Priyadip Das
- Department of Chemistry, SRM Institute of Science and Technology, Kattankulathur, Chennai, Tamilnadu, 603203, India
| | - Adele Stewart
- Department of Biomedical Science, Charles E. Schmidt College of Medicine, Florida Atlantic University, Jupiter, FL, 33458, USA.
| | - Biswanath Maity
- Centre of Biomedical Research (CBMR), SGPGI, SGPGI Campus, Raebareli Road, Lucknow, Uttar Pradesh, 226014, India.
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Alizadeh AA, Morris MB, Church WB, Yaqoubi S, Dastmalchi S. A mechanistic perspective, clinical applications, and phage-display-assisted discovery of TNFα inhibitors. Drug Discov Today 2021; 27:503-518. [PMID: 34628042 DOI: 10.1016/j.drudis.2021.09.024] [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: 04/03/2021] [Revised: 06/20/2021] [Accepted: 09/30/2021] [Indexed: 11/03/2022]
Abstract
TNFα participates in a variety of physiological processes, but at supra-physiological concentrations it has been implicated in the pathology of inflammatory and autoimmune diseases. Therefore, much attention has been devoted to the development of strategies that overcome the effects of aberrant TNFα concentration. Promising strategies include drugs that destabilize the active (trimeric) form of TNFα and antagonists of TNFα receptor type I. Underpinning these strategies is the successful application of phage-display technology to identify anti-TNFα peptides and antibodies. Here, we review the development of inhibitors of the TNFα-TNF receptor system, with particular focus on the phage-display-assisted identification of molecules that interfere with this system by acting as inhibitors of TNFα or by sequestering TNFα away from its receptor.
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Affiliation(s)
- Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Michael B Morris
- Discipline of Physiology and Bosch Institute, School of Medical Sciences, University of Sydney, NSW 2006, Australia
| | - W Bret Church
- Group in Biomolecular Structure and Informatics, Faculty of Pharmacy A15, University of Sydney, Sydney, NSW 2006, Australia
| | - Shadi Yaqoubi
- Student Research Committee, Tabriz University of Medical Sciences, Tabriz, Iran; Pharmaceutical Analysis Research Center, Tabriz University Medical Sciences, Tabriz, Iran
| | - Siavoush Dastmalchi
- Department of Medicinal Chemistry, School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Pharmacy, Near East University, PO Box 99138, Nicosia, North Cyprus, Mersin 10, Turkey.
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Jamshidi Kandjani O, Alizadeh AA, Moosavi-Movahedi AA, Dastmalchi S. Expression, purification and molecular dynamics simulation of extracellular domain of glucagon-like peptide-2 receptor linked to teduglutide. Int J Biol Macromol 2021; 184:812-820. [PMID: 34174312 DOI: 10.1016/j.ijbiomac.2021.06.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2021] [Revised: 06/20/2021] [Accepted: 06/21/2021] [Indexed: 11/26/2022]
Abstract
Teduglutide is the only drug approved for long-term treatment of short bowel syndrome (SBS). This drug exerts its pharmacological effects via binding to the GLP-2 receptors (ECD-GLP2R) located in intestinal tissue. The three dimensional (3D) structure of ECD-GLP2R hasn't been determined yet and hence its mode of interaction with agonists/antagonists is not clear. Therefore, it would be of great importance to develop a structural scaffold for investigation of ECD-GLP2R interactions with its binders. For this, the current study aimed to produce fusion protein of ECD-GLP2R-teduglutide. The ECD-GLP2R-teduglutide protein was expressed in bacterial expression system and purified using affinity and size exclusion chromatography techniques. Using circular dichroism the secondary structure content of purified protein was determined which was comparable to that of theoretical calculations. The low structural stability of purified protein (ΔG = 3.64 kJ.mol-1) was elucidated by monitoring its fluorescence emission at the presence of various concentrations of GdnHCl as a denaturant. Finally, a 3D model for ECD-GLP2R-teduglutide protein was generated and validated using molecular dynamics simulation whose information alongside the experimental studies can be useful for providing new insight into the mode of interaction of ECD-GLP2R with its specific ligands in order to design potent and specific GLP2R agonists.
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Affiliation(s)
- Omid Jamshidi Kandjani
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Parmaceutical Analysis Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Ali Akbar Alizadeh
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | | | - Siavoush Dastmalchi
- Biotechnology Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; School of Pharmacy, Tabriz University of Medical Sciences, Tabriz, Iran; Faculty of Pharmacy, Near East University, PO BOX: 99138, Nicosia, North Cyprus, Mersin 10, Turkey.
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Nie J, Ma X, Hu F, Miao H, Feng X, Zhang P, Han MH, You F, Yang Y, Zhang W, Zheng W. Designing and constructing a phage display synthesized single domain antibodies library based on camel VHHs frame for screening and identifying humanized TNF-α-specific nanobody. Biomed Pharmacother 2021; 137:111328. [PMID: 33571835 DOI: 10.1016/j.biopha.2021.111328] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2020] [Revised: 01/20/2021] [Accepted: 01/25/2021] [Indexed: 01/17/2023] Open
Abstract
Tumor necrosis factor (TNF-α) is an important clinically tested cytokine that could induce autoimmune diseases and inflammation. Therefore, the anti-TNF-α therapy strategy was developed and used therapeutically in various diseases, especially in the cytokine storm associated chimeric antigen receptor (CAR) T-cell therapy and antiviral therapy. Compare with other anti-TNF-α inhibitors, anti-TNF-α Nb (nanobody) has many unique advantages. Herein, we reported a novel humanized scaffold for library construction, which could be soluble and expressed in Escherichia coli (E.coli), and the efficiency capacity could reach as high as 2.01 × 109. Meanwhile, an anti-TNF-α Nb was selected for further study after 4 rounds of screening, NT-3, as the optimal Nb could effectively inhibit TNF-mediated cytotoxicity. The IC50 of NT-3 was determined as 0.804 μM, and its apoptosis inhibition rate was 62.47 % in L929 cells. Furthermore, the molecular docking results showed that complementarity-determining regions (CDRs) of NT-3 could connect to TNF for blocking function through strong hydrogen bonds and salt bridges. In general, our study not only provided a good Nb screening platform in vitro without animal immunization, but also generated a series of novel humanized anti-TNF-α Nb candidates with potential applications.
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Affiliation(s)
- Jifan Nie
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xingyuan Ma
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Fabiao Hu
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Hui Miao
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Xin Feng
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China
| | - Peiwen Zhang
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China
| | - Myong Hun Han
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Department of Genetic, Faculty of Life Science, KIM IL SUNG University, Pyongyang 999093, Democratic People's Republic of Korea
| | - Fang You
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore
| | - Yi Yang
- Department of Chemical and Biomolecular Engineering, National University of Singapore, Singapore 117585, Singapore; SinGENE Biotech Pte Ltd, Singapore Science Park, Singapore 118258, Singapore.
| | - Wenlian Zhang
- State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China; Center of Translational Biomedical Research, University of North Carolina at Greensboro, Greensboro, NC 27310, USA
| | - Wenyun Zheng
- Shanghai Key Laboratory of New Drug Design, School of Pharmacy, East China University of Science and Technology, Shanghai 200237, PR China.
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